/**
 * vis-graph3d
 * https://visjs.github.io/vis-graph3d/
 *
 * Create interactive, animated 3d graphs. Surfaces, lines, dots and block styling out of the box.
 *
 * @version 7.0.4
 * @date    2026-10-25T13:37:24.057Z
 *
 * @copyright (c) 2011-2017 Almende B.V, http://almende.com
 * @copyright (c) 2017-2019 visjs contributors, https://github.com/visjs
 *
 * @license
 * vis.js is dual licensed under both
 *
 *   1. The Apache 2.0 License
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *   and
 *
 *   2. The MIT License
 *      http://opensource.org/licenses/MIT
 *
 * vis.js may be distributed under either license.
 */

import { DataView, DataSet } from 'vis-data/peer/esm/vis-data.js';

var commonjsGlobal = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};

function getDefaultExportFromCjs (x) {
	return x && x.__esModule && Object.prototype.hasOwnProperty.call(x, 'default') ? x['default'] : x;
}

var es_math_sign = {};

var globalThis_1;
var hasRequiredGlobalThis;

function requireGlobalThis () {
	if (hasRequiredGlobalThis) return globalThis_1;
	hasRequiredGlobalThis = 1;
	var check = function (it) {
	  return it && it.Math === Math && it;
	};

	// https://github.com/zloirock/core-js/issues/86#issuecomment-115759028
	globalThis_1 =
	  // eslint-disable-next-line es/no-global-this -- safe
	  check(typeof globalThis == 'object' && globalThis) ||
	  check(typeof window == 'object' && window) ||
	  // eslint-disable-next-line no-restricted-globals -- safe
	  check(typeof self == 'object' && self) ||
	  check(typeof commonjsGlobal == 'object' && commonjsGlobal) ||
	  check(typeof globalThis_1 == 'object' && globalThis_1) ||
	  // eslint-disable-next-line no-new-func -- fallback
	  (function () { return this; })() || Function('return this')();
	return globalThis_1;
}

var fails;
var hasRequiredFails;

function requireFails () {
	if (hasRequiredFails) return fails;
	hasRequiredFails = 1;
	fails = function (exec) {
	  try {
	    return !!exec();
	  } catch (error) {
	    return true;
	  }
	};
	return fails;
}

var functionBindNative;
var hasRequiredFunctionBindNative;

function requireFunctionBindNative () {
	if (hasRequiredFunctionBindNative) return functionBindNative;
	hasRequiredFunctionBindNative = 1;
	var fails = /*@__PURE__*/ requireFails();

	functionBindNative = !fails(function () {
	  // eslint-disable-next-line es/no-function-prototype-bind -- safe
	  var test = function () { /* empty */ }.bind();
	  // eslint-disable-next-line no-prototype-builtins -- safe
	  return typeof test != 'function' || test.hasOwnProperty('prototype');
	});
	return functionBindNative;
}

var functionApply;
var hasRequiredFunctionApply;

function requireFunctionApply () {
	if (hasRequiredFunctionApply) return functionApply;
	hasRequiredFunctionApply = 1;
	var NATIVE_BIND = /*@__PURE__*/ requireFunctionBindNative();

	var FunctionPrototype = Function.prototype;
	var apply = FunctionPrototype.apply;
	var call = FunctionPrototype.call;

	// eslint-disable-next-line es/no-function-prototype-bind, es/no-reflect -- safe
	functionApply = typeof Reflect == 'object' && Reflect.apply || (NATIVE_BIND ? call.bind(apply) : function () {
	  return call.apply(apply, arguments);
	});
	return functionApply;
}

var functionUncurryThis;
var hasRequiredFunctionUncurryThis;

function requireFunctionUncurryThis () {
	if (hasRequiredFunctionUncurryThis) return functionUncurryThis;
	hasRequiredFunctionUncurryThis = 1;
	var NATIVE_BIND = /*@__PURE__*/ requireFunctionBindNative();

	var FunctionPrototype = Function.prototype;
	var call = FunctionPrototype.call;
	// eslint-disable-next-line es/no-function-prototype-bind -- safe
	var uncurryThisWithBind = NATIVE_BIND && FunctionPrototype.bind.bind(call, call);

	functionUncurryThis = NATIVE_BIND ? uncurryThisWithBind : function (fn) {
	  return function () {
	    return call.apply(fn, arguments);
	  };
	};
	return functionUncurryThis;
}

var classofRaw;
var hasRequiredClassofRaw;

function requireClassofRaw () {
	if (hasRequiredClassofRaw) return classofRaw;
	hasRequiredClassofRaw = 1;
	var uncurryThis = /*@__PURE__*/ requireFunctionUncurryThis();

	var toString = uncurryThis({}.toString);
	var stringSlice = uncurryThis(''.slice);

	classofRaw = function (it) {
	  return stringSlice(toString(it), 8, -1);
	};
	return classofRaw;
}

var functionUncurryThisClause;
var hasRequiredFunctionUncurryThisClause;

function requireFunctionUncurryThisClause () {
	if (hasRequiredFunctionUncurryThisClause) return functionUncurryThisClause;
	hasRequiredFunctionUncurryThisClause = 1;
	var classofRaw = /*@__PURE__*/ requireClassofRaw();
	var uncurryThis = /*@__PURE__*/ requireFunctionUncurryThis();

	functionUncurryThisClause = function (fn) {
	  // Nashorn bug:
	  //   https://github.com/zloirock/core-js/issues/1128
	  //   https://github.com/zloirock/core-js/issues/1130
	  if (classofRaw(fn) === 'Function') return uncurryThis(fn);
	};
	return functionUncurryThisClause;
}

var isCallable;
var hasRequiredIsCallable;

function requireIsCallable () {
	if (hasRequiredIsCallable) return isCallable;
	hasRequiredIsCallable = 1;
	// https://tc39.es/ecma262/#sec-IsHTMLDDA-internal-slot
	var documentAll = typeof document == 'object' && document.all;

	// `IsCallable` abstract operation
	// https://tc39.es/ecma262/#sec-iscallable
	// eslint-disable-next-line unicorn/no-typeof-undefined -- required for testing
	isCallable = typeof documentAll == 'undefined' && documentAll !== undefined ? function (argument) {
	  return typeof argument == 'function' || argument === documentAll;
	} : function (argument) {
	  return typeof argument == 'function';
	};
	return isCallable;
}

var objectGetOwnPropertyDescriptor = {};

var descriptors;
var hasRequiredDescriptors;

function requireDescriptors () {
	if (hasRequiredDescriptors) return descriptors;
	hasRequiredDescriptors = 1;
	var fails = /*@__PURE__*/ requireFails();

	// Detect IE8's incomplete defineProperty implementation
	descriptors = !fails(function () {
	  // eslint-disable-next-line es/no-object-defineproperty -- required for testing
	  return Object.defineProperty({}, 1, { get: function () { return 7; } })[1] !== 7;
	});
	return descriptors;
}

var functionCall;
var hasRequiredFunctionCall;

function requireFunctionCall () {
	if (hasRequiredFunctionCall) return functionCall;
	hasRequiredFunctionCall = 1;
	var NATIVE_BIND = /*@__PURE__*/ requireFunctionBindNative();

	var call = Function.prototype.call;
	// eslint-disable-next-line es/no-function-prototype-bind -- safe
	functionCall = NATIVE_BIND ? call.bind(call) : function () {
	  return call.apply(call, arguments);
	};
	return functionCall;
}

var objectPropertyIsEnumerable = {};

var hasRequiredObjectPropertyIsEnumerable;

function requireObjectPropertyIsEnumerable () {
	if (hasRequiredObjectPropertyIsEnumerable) return objectPropertyIsEnumerable;
	hasRequiredObjectPropertyIsEnumerable = 1;
	var $propertyIsEnumerable = {}.propertyIsEnumerable;
	// eslint-disable-next-line es/no-object-getownpropertydescriptor -- safe
	var getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;

	// Nashorn ~ JDK8 bug
	var NASHORN_BUG = getOwnPropertyDescriptor && !$propertyIsEnumerable.call({ 1: 2 }, 1);

	// `Object.prototype.propertyIsEnumerable` method implementation
	// https://tc39.es/ecma262/#sec-object.prototype.propertyisenumerable
	objectPropertyIsEnumerable.f = NASHORN_BUG ? function propertyIsEnumerable(V) {
	  var descriptor = getOwnPropertyDescriptor(this, V);
	  return !!descriptor && descriptor.enumerable;
	} : $propertyIsEnumerable;
	return objectPropertyIsEnumerable;
}

var createPropertyDescriptor;
var hasRequiredCreatePropertyDescriptor;

function requireCreatePropertyDescriptor () {
	if (hasRequiredCreatePropertyDescriptor) return createPropertyDescriptor;
	hasRequiredCreatePropertyDescriptor = 1;
	createPropertyDescriptor = function (bitmap, value) {
	  return {
	    enumerable: !(bitmap & 1),
	    configurable: !(bitmap & 2),
	    writable: !(bitmap & 4),
	    value: value
	  };
	};
	return createPropertyDescriptor;
}

var indexedObject;
var hasRequiredIndexedObject;

function requireIndexedObject () {
	if (hasRequiredIndexedObject) return indexedObject;
	hasRequiredIndexedObject = 1;
	var uncurryThis = /*@__PURE__*/ requireFunctionUncurryThis();
	var fails = /*@__PURE__*/ requireFails();
	var classof = /*@__PURE__*/ requireClassofRaw();

	var $Object = Object;
	var split = uncurryThis(''.split);

	// fallback for non-array-like ES3 and non-enumerable old V8 strings
	indexedObject = fails(function () {
	  // throws an error in rhino, see https://github.com/mozilla/rhino/issues/346
	  // eslint-disable-next-line no-prototype-builtins -- safe
	  return !$Object('z').propertyIsEnumerable(0);
	}) ? function (it) {
	  return classof(it) === 'String' ? split(it, '') : $Object(it);
	} : $Object;
	return indexedObject;
}

var isNullOrUndefined;
var hasRequiredIsNullOrUndefined;

function requireIsNullOrUndefined () {
	if (hasRequiredIsNullOrUndefined) return isNullOrUndefined;
	hasRequiredIsNullOrUndefined = 1;
	// we can't use just `it == null` since of `document.all` special case
	// https://tc39.es/ecma262/#sec-IsHTMLDDA-internal-slot-aec
	isNullOrUndefined = function (it) {
	  return it === null || it === undefined;
	};
	return isNullOrUndefined;
}

var requireObjectCoercible;
var hasRequiredRequireObjectCoercible;

function requireRequireObjectCoercible () {
	if (hasRequiredRequireObjectCoercible) return requireObjectCoercible;
	hasRequiredRequireObjectCoercible = 1;
	var isNullOrUndefined = /*@__PURE__*/ requireIsNullOrUndefined();

	var $TypeError = TypeError;

	// `RequireObjectCoercible` abstract operation
	// https://tc39.es/ecma262/#sec-requireobjectcoercible
	requireObjectCoercible = function (it) {
	  if (isNullOrUndefined(it)) throw new $TypeError("Can't call method on " + it);
	  return it;
	};
	return requireObjectCoercible;
}

var toIndexedObject;
var hasRequiredToIndexedObject;

function requireToIndexedObject () {
	if (hasRequiredToIndexedObject) return toIndexedObject;
	hasRequiredToIndexedObject = 1;
	// toObject with fallback for non-array-like ES3 strings
	var IndexedObject = /*@__PURE__*/ requireIndexedObject();
	var requireObjectCoercible = /*@__PURE__*/ requireRequireObjectCoercible();

	toIndexedObject = function (it) {
	  return IndexedObject(requireObjectCoercible(it));
	};
	return toIndexedObject;
}

var isObject;
var hasRequiredIsObject;

function requireIsObject () {
	if (hasRequiredIsObject) return isObject;
	hasRequiredIsObject = 1;
	var isCallable = /*@__PURE__*/ requireIsCallable();

	isObject = function (it) {
	  return typeof it == 'object' ? it !== null : isCallable(it);
	};
	return isObject;
}

var path;
var hasRequiredPath;

function requirePath () {
	if (hasRequiredPath) return path;
	hasRequiredPath = 1;
	path = {};
	return path;
}

var getBuiltIn;
var hasRequiredGetBuiltIn;

function requireGetBuiltIn () {
	if (hasRequiredGetBuiltIn) return getBuiltIn;
	hasRequiredGetBuiltIn = 1;
	var path = /*@__PURE__*/ requirePath();
	var globalThis = /*@__PURE__*/ requireGlobalThis();
	var isCallable = /*@__PURE__*/ requireIsCallable();

	var aFunction = function (variable) {
	  return isCallable(variable) ? variable : undefined;
	};

	getBuiltIn = function (namespace, method) {
	  return arguments.length < 2 ? aFunction(path[namespace]) || aFunction(globalThis[namespace])
	    : path[namespace] && path[namespace][method] || globalThis[namespace] && globalThis[namespace][method];
	};
	return getBuiltIn;
}

var objectIsPrototypeOf;
var hasRequiredObjectIsPrototypeOf;

function requireObjectIsPrototypeOf () {
	if (hasRequiredObjectIsPrototypeOf) return objectIsPrototypeOf;
	hasRequiredObjectIsPrototypeOf = 1;
	var uncurryThis = /*@__PURE__*/ requireFunctionUncurryThis();

	objectIsPrototypeOf = uncurryThis({}.isPrototypeOf);
	return objectIsPrototypeOf;
}

var environmentUserAgent;
var hasRequiredEnvironmentUserAgent;

function requireEnvironmentUserAgent () {
	if (hasRequiredEnvironmentUserAgent) return environmentUserAgent;
	hasRequiredEnvironmentUserAgent = 1;
	var globalThis = /*@__PURE__*/ requireGlobalThis();

	var navigator = globalThis.navigator;
	var userAgent = navigator && navigator.userAgent;

	environmentUserAgent = userAgent ? String(userAgent) : '';
	return environmentUserAgent;
}

var environmentV8Version;
var hasRequiredEnvironmentV8Version;

function requireEnvironmentV8Version () {
	if (hasRequiredEnvironmentV8Version) return environmentV8Version;
	hasRequiredEnvironmentV8Version = 1;
	var globalThis = /*@__PURE__*/ requireGlobalThis();
	var userAgent = /*@__PURE__*/ requireEnvironmentUserAgent();

	var process = globalThis.process;
	var Deno = globalThis.Deno;
	var versions = process && process.versions || Deno && Deno.version;
	var v8 = versions && versions.v8;
	var match, version;

	if (v8) {
	  match = v8.split('.');
	  // in old Chrome, versions of V8 isn't V8 = Chrome / 10
	  // but their correct versions are not interesting for us
	  version = match[0] > 0 && match[0] < 4 ? 1 : +(match[0] + match[1]);
	}

	// BrowserFS NodeJS `process` polyfill incorrectly set `.v8` to `0.0`
	// so check `userAgent` even if `.v8` exists, but 0
	if (!version && userAgent) {
	  match = userAgent.match(/Edge\/(\d+)/);
	  if (!match || match[1] >= 74) {
	    match = userAgent.match(/Chrome\/(\d+)/);
	    if (match) version = +match[1];
	  }
	}

	environmentV8Version = version;
	return environmentV8Version;
}

var symbolConstructorDetection;
var hasRequiredSymbolConstructorDetection;

function requireSymbolConstructorDetection () {
	if (hasRequiredSymbolConstructorDetection) return symbolConstructorDetection;
	hasRequiredSymbolConstructorDetection = 1;
	/* eslint-disable es/no-symbol -- required for testing */
	var V8_VERSION = /*@__PURE__*/ requireEnvironmentV8Version();
	var fails = /*@__PURE__*/ requireFails();
	var globalThis = /*@__PURE__*/ requireGlobalThis();

	var $String = globalThis.String;

	// eslint-disable-next-line es/no-object-getownpropertysymbols -- required for testing
	symbolConstructorDetection = !!Object.getOwnPropertySymbols && !fails(function () {
	  var symbol = Symbol('symbol detection');
	  // Chrome 38 Symbol has incorrect toString conversion
	  // `get-own-property-symbols` polyfill symbols converted to object are not Symbol instances
	  // nb: Do not call `String` directly to avoid this being optimized out to `symbol+''` which will,
	  // of course, fail.
	  return !$String(symbol) || !(Object(symbol) instanceof Symbol) ||
	    // Chrome 38-40 symbols are not inherited from DOM collections prototypes to instances
	    !Symbol.sham && V8_VERSION && V8_VERSION < 41;
	});
	return symbolConstructorDetection;
}

var useSymbolAsUid;
var hasRequiredUseSymbolAsUid;

function requireUseSymbolAsUid () {
	if (hasRequiredUseSymbolAsUid) return useSymbolAsUid;
	hasRequiredUseSymbolAsUid = 1;
	/* eslint-disable es/no-symbol -- required for testing */
	var NATIVE_SYMBOL = /*@__PURE__*/ requireSymbolConstructorDetection();

	useSymbolAsUid = NATIVE_SYMBOL &&
	  !Symbol.sham &&
	  typeof Symbol.iterator == 'symbol';
	return useSymbolAsUid;
}

var isSymbol;
var hasRequiredIsSymbol;

function requireIsSymbol () {
	if (hasRequiredIsSymbol) return isSymbol;
	hasRequiredIsSymbol = 1;
	var getBuiltIn = /*@__PURE__*/ requireGetBuiltIn();
	var isCallable = /*@__PURE__*/ requireIsCallable();
	var isPrototypeOf = /*@__PURE__*/ requireObjectIsPrototypeOf();
	var USE_SYMBOL_AS_UID = /*@__PURE__*/ requireUseSymbolAsUid();

	var $Object = Object;

	isSymbol = USE_SYMBOL_AS_UID ? function (it) {
	  return typeof it == 'symbol';
	} : function (it) {
	  var $Symbol = getBuiltIn('Symbol');
	  return isCallable($Symbol) && isPrototypeOf($Symbol.prototype, $Object(it));
	};
	return isSymbol;
}

var tryToString;
var hasRequiredTryToString;

function requireTryToString () {
	if (hasRequiredTryToString) return tryToString;
	hasRequiredTryToString = 1;
	var $String = String;

	tryToString = function (argument) {
	  try {
	    return $String(argument);
	  } catch (error) {
	    return 'Object';
	  }
	};
	return tryToString;
}

var aCallable;
var hasRequiredACallable;

function requireACallable () {
	if (hasRequiredACallable) return aCallable;
	hasRequiredACallable = 1;
	var isCallable = /*@__PURE__*/ requireIsCallable();
	var tryToString = /*@__PURE__*/ requireTryToString();

	var $TypeError = TypeError;

	// `Assert: IsCallable(argument) is true`
	aCallable = function (argument) {
	  if (isCallable(argument)) return argument;
	  throw new $TypeError(tryToString(argument) + ' is not a function');
	};
	return aCallable;
}

var getMethod;
var hasRequiredGetMethod;

function requireGetMethod () {
	if (hasRequiredGetMethod) return getMethod;
	hasRequiredGetMethod = 1;
	var aCallable = /*@__PURE__*/ requireACallable();
	var isNullOrUndefined = /*@__PURE__*/ requireIsNullOrUndefined();

	// `GetMethod` abstract operation
	// https://tc39.es/ecma262/#sec-getmethod
	getMethod = function (V, P) {
	  var func = V[P];
	  return isNullOrUndefined(func) ? undefined : aCallable(func);
	};
	return getMethod;
}

var ordinaryToPrimitive;
var hasRequiredOrdinaryToPrimitive;

function requireOrdinaryToPrimitive () {
	if (hasRequiredOrdinaryToPrimitive) return ordinaryToPrimitive;
	hasRequiredOrdinaryToPrimitive = 1;
	var call = /*@__PURE__*/ requireFunctionCall();
	var isCallable = /*@__PURE__*/ requireIsCallable();
	var isObject = /*@__PURE__*/ requireIsObject();

	var $TypeError = TypeError;

	// `OrdinaryToPrimitive` abstract operation
	// https://tc39.es/ecma262/#sec-ordinarytoprimitive
	ordinaryToPrimitive = function (input, pref) {
	  var fn, val;
	  if (pref === 'string' && isCallable(fn = input.toString) && !isObject(val = call(fn, input))) return val;
	  if (isCallable(fn = input.valueOf) && !isObject(val = call(fn, input))) return val;
	  if (pref !== 'string' && isCallable(fn = input.toString) && !isObject(val = call(fn, input))) return val;
	  throw new $TypeError("Can't convert object to primitive value");
	};
	return ordinaryToPrimitive;
}

var sharedStore = {exports: {}};

var isPure;
var hasRequiredIsPure;

function requireIsPure () {
	if (hasRequiredIsPure) return isPure;
	hasRequiredIsPure = 1;
	isPure = true;
	return isPure;
}

var defineGlobalProperty;
var hasRequiredDefineGlobalProperty;

function requireDefineGlobalProperty () {
	if (hasRequiredDefineGlobalProperty) return defineGlobalProperty;
	hasRequiredDefineGlobalProperty = 1;
	var globalThis = /*@__PURE__*/ requireGlobalThis();

	// eslint-disable-next-line es/no-object-defineproperty -- safe
	var defineProperty = Object.defineProperty;

	defineGlobalProperty = function (key, value) {
	  try {
	    defineProperty(globalThis, key, { value: value, configurable: true, writable: true });
	  } catch (error) {
	    globalThis[key] = value;
	  } return value;
	};
	return defineGlobalProperty;
}

var hasRequiredSharedStore;

function requireSharedStore () {
	if (hasRequiredSharedStore) return sharedStore.exports;
	hasRequiredSharedStore = 1;
	var IS_PURE = /*@__PURE__*/ requireIsPure();
	var globalThis = /*@__PURE__*/ requireGlobalThis();
	var defineGlobalProperty = /*@__PURE__*/ requireDefineGlobalProperty();

	var SHARED = '__core-js_shared__';
	var store = sharedStore.exports = globalThis[SHARED] || defineGlobalProperty(SHARED, {});

	(store.versions || (store.versions = [])).push({
	  version: '3.50.0',
	  mode: IS_PURE ? 'pure' : 'global',
	  copyright: '© 2013–2025 Denis Pushkarev (zloirock.ru), 2025–2026 CoreJS Company (core-js.io). All rights reserved.',
	  license: 'https://github.com/zloirock/core-js/blob/v3.50.0/LICENSE',
	  source: 'https://github.com/zloirock/core-js'
	});
	return sharedStore.exports;
}

var shared;
var hasRequiredShared;

function requireShared () {
	if (hasRequiredShared) return shared;
	hasRequiredShared = 1;
	var store = /*@__PURE__*/ requireSharedStore();
	// eslint-disable-next-line es/no-object-create -- safe
	var create = Object.create || Object;

	shared = function (key, value) {
	  return store[key] || (store[key] = value || create(null));
	};
	return shared;
}

var toObject;
var hasRequiredToObject;

function requireToObject () {
	if (hasRequiredToObject) return toObject;
	hasRequiredToObject = 1;
	var requireObjectCoercible = /*@__PURE__*/ requireRequireObjectCoercible();

	var $Object = Object;

	// `ToObject` abstract operation
	// https://tc39.es/ecma262/#sec-toobject
	toObject = function (argument) {
	  return $Object(requireObjectCoercible(argument));
	};
	return toObject;
}

var hasOwnProperty_1;
var hasRequiredHasOwnProperty;

function requireHasOwnProperty () {
	if (hasRequiredHasOwnProperty) return hasOwnProperty_1;
	hasRequiredHasOwnProperty = 1;
	var uncurryThis = /*@__PURE__*/ requireFunctionUncurryThis();
	var toObject = /*@__PURE__*/ requireToObject();

	var hasOwnProperty = uncurryThis({}.hasOwnProperty);

	// `HasOwnProperty` abstract operation
	// https://tc39.es/ecma262/#sec-hasownproperty
	// eslint-disable-next-line es/no-object-hasown -- safe
	hasOwnProperty_1 = Object.hasOwn || function hasOwn(it, key) {
	  return hasOwnProperty(toObject(it), key);
	};
	return hasOwnProperty_1;
}

var uid;
var hasRequiredUid;

function requireUid () {
	if (hasRequiredUid) return uid;
	hasRequiredUid = 1;
	var uncurryThis = /*@__PURE__*/ requireFunctionUncurryThis();

	var id = 0;
	var postfix = Math.random();
	var toString = uncurryThis(1.1.toString);

	uid = function (key) {
	  return 'Symbol(' + (key === undefined ? '' : key) + ')_' + toString(++id + postfix, 36);
	};
	return uid;
}

var wellKnownSymbol;
var hasRequiredWellKnownSymbol;

function requireWellKnownSymbol () {
	if (hasRequiredWellKnownSymbol) return wellKnownSymbol;
	hasRequiredWellKnownSymbol = 1;
	var globalThis = /*@__PURE__*/ requireGlobalThis();
	var shared = /*@__PURE__*/ requireShared();
	var hasOwn = /*@__PURE__*/ requireHasOwnProperty();
	var uid = /*@__PURE__*/ requireUid();
	var NATIVE_SYMBOL = /*@__PURE__*/ requireSymbolConstructorDetection();
	var USE_SYMBOL_AS_UID = /*@__PURE__*/ requireUseSymbolAsUid();

	var Symbol = globalThis.Symbol;
	var WellKnownSymbolsStore = shared('wks');
	var createWellKnownSymbol = USE_SYMBOL_AS_UID ? Symbol['for'] || Symbol : Symbol && Symbol.withoutSetter || uid;

	wellKnownSymbol = function (name) {
	  if (!hasOwn(WellKnownSymbolsStore, name)) {
	    WellKnownSymbolsStore[name] = NATIVE_SYMBOL && hasOwn(Symbol, name)
	      ? Symbol[name]
	      : createWellKnownSymbol('Symbol.' + name);
	  } return WellKnownSymbolsStore[name];
	};
	return wellKnownSymbol;
}

var toPrimitive;
var hasRequiredToPrimitive;

function requireToPrimitive () {
	if (hasRequiredToPrimitive) return toPrimitive;
	hasRequiredToPrimitive = 1;
	var call = /*@__PURE__*/ requireFunctionCall();
	var isObject = /*@__PURE__*/ requireIsObject();
	var isSymbol = /*@__PURE__*/ requireIsSymbol();
	var getMethod = /*@__PURE__*/ requireGetMethod();
	var ordinaryToPrimitive = /*@__PURE__*/ requireOrdinaryToPrimitive();
	var wellKnownSymbol = /*@__PURE__*/ requireWellKnownSymbol();

	var $TypeError = TypeError;
	var TO_PRIMITIVE = wellKnownSymbol('toPrimitive');

	// `ToPrimitive` abstract operation
	// https://tc39.es/ecma262/#sec-toprimitive
	toPrimitive = function (input, pref) {
	  if (!isObject(input) || isSymbol(input)) return input;
	  var exoticToPrim = getMethod(input, TO_PRIMITIVE);
	  var result;
	  if (exoticToPrim) {
	    if (pref === undefined) pref = 'default';
	    result = call(exoticToPrim, input, pref);
	    if (!isObject(result) || isSymbol(result)) return result;
	    throw new $TypeError("Can't convert object to primitive value");
	  }
	  if (pref === undefined) pref = 'number';
	  return ordinaryToPrimitive(input, pref);
	};
	return toPrimitive;
}

var toPropertyKey;
var hasRequiredToPropertyKey;

function requireToPropertyKey () {
	if (hasRequiredToPropertyKey) return toPropertyKey;
	hasRequiredToPropertyKey = 1;
	var toPrimitive = /*@__PURE__*/ requireToPrimitive();
	var isSymbol = /*@__PURE__*/ requireIsSymbol();

	// `ToPropertyKey` abstract operation
	// https://tc39.es/ecma262/#sec-topropertykey
	toPropertyKey = function (argument) {
	  var key = toPrimitive(argument, 'string');
	  return isSymbol(key) ? key : key + '';
	};
	return toPropertyKey;
}

var documentCreateElement;
var hasRequiredDocumentCreateElement;

function requireDocumentCreateElement () {
	if (hasRequiredDocumentCreateElement) return documentCreateElement;
	hasRequiredDocumentCreateElement = 1;
	var globalThis = /*@__PURE__*/ requireGlobalThis();
	var isObject = /*@__PURE__*/ requireIsObject();

	var document = globalThis.document;
	// typeof document.createElement is 'object' in old IE
	var EXISTS = isObject(document) && isObject(document.createElement);

	documentCreateElement = function (it) {
	  return EXISTS ? document.createElement(it) : {};
	};
	return documentCreateElement;
}

var ie8DomDefine;
var hasRequiredIe8DomDefine;

function requireIe8DomDefine () {
	if (hasRequiredIe8DomDefine) return ie8DomDefine;
	hasRequiredIe8DomDefine = 1;
	var DESCRIPTORS = /*@__PURE__*/ requireDescriptors();
	var fails = /*@__PURE__*/ requireFails();
	var createElement = /*@__PURE__*/ requireDocumentCreateElement();

	// Thanks to IE8 for its funny defineProperty
	ie8DomDefine = !DESCRIPTORS && !fails(function () {
	  // eslint-disable-next-line es/no-object-defineproperty -- required for testing
	  return Object.defineProperty(createElement('div'), 'a', {
	    get: function () { return 7; }
	  }).a !== 7;
	});
	return ie8DomDefine;
}

var hasRequiredObjectGetOwnPropertyDescriptor;

function requireObjectGetOwnPropertyDescriptor () {
	if (hasRequiredObjectGetOwnPropertyDescriptor) return objectGetOwnPropertyDescriptor;
	hasRequiredObjectGetOwnPropertyDescriptor = 1;
	var DESCRIPTORS = /*@__PURE__*/ requireDescriptors();
	var call = /*@__PURE__*/ requireFunctionCall();
	var propertyIsEnumerableModule = /*@__PURE__*/ requireObjectPropertyIsEnumerable();
	var createPropertyDescriptor = /*@__PURE__*/ requireCreatePropertyDescriptor();
	var toIndexedObject = /*@__PURE__*/ requireToIndexedObject();
	var toPropertyKey = /*@__PURE__*/ requireToPropertyKey();
	var hasOwn = /*@__PURE__*/ requireHasOwnProperty();
	var IE8_DOM_DEFINE = /*@__PURE__*/ requireIe8DomDefine();

	// eslint-disable-next-line es/no-object-getownpropertydescriptor -- safe
	var $getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;

	// `Object.getOwnPropertyDescriptor` method
	// https://tc39.es/ecma262/#sec-object.getownpropertydescriptor
	objectGetOwnPropertyDescriptor.f = DESCRIPTORS ? $getOwnPropertyDescriptor : function getOwnPropertyDescriptor(O, P) {
	  O = toIndexedObject(O);
	  P = toPropertyKey(P);
	  if (IE8_DOM_DEFINE) try {
	    return $getOwnPropertyDescriptor(O, P);
	  } catch (error) { /* empty */ }
	  if (hasOwn(O, P)) return createPropertyDescriptor(!call(propertyIsEnumerableModule.f, O, P), O[P]);
	};
	return objectGetOwnPropertyDescriptor;
}

var isForced_1;
var hasRequiredIsForced;

function requireIsForced () {
	if (hasRequiredIsForced) return isForced_1;
	hasRequiredIsForced = 1;
	var fails = /*@__PURE__*/ requireFails();
	var isCallable = /*@__PURE__*/ requireIsCallable();

	var replacement = /#|\.prototype\./;

	var isForced = function (feature, detection) {
	  var value = data[normalize(feature)];
	  return value === POLYFILL ? true
	    : value === NATIVE ? false
	    : isCallable(detection) ? fails(detection)
	    : !!detection;
	};

	var normalize = isForced.normalize = function (string) {
	  return String(string).replace(replacement, '.').toLowerCase();
	};

	var data = isForced.data = {};
	var NATIVE = isForced.NATIVE = 'N';
	var POLYFILL = isForced.POLYFILL = 'P';

	isForced_1 = isForced;
	return isForced_1;
}

var functionBindContext;
var hasRequiredFunctionBindContext;

function requireFunctionBindContext () {
	if (hasRequiredFunctionBindContext) return functionBindContext;
	hasRequiredFunctionBindContext = 1;
	var uncurryThis = /*@__PURE__*/ requireFunctionUncurryThisClause();
	var aCallable = /*@__PURE__*/ requireACallable();
	var NATIVE_BIND = /*@__PURE__*/ requireFunctionBindNative();

	var bind = uncurryThis(uncurryThis.bind);

	// optional / simple context binding
	functionBindContext = function (fn, that) {
	  aCallable(fn);
	  return that === undefined ? fn : NATIVE_BIND ? bind(fn, that) : function (/* ...args */) {
	    return fn.apply(that, arguments);
	  };
	};
	return functionBindContext;
}

var objectDefineProperty = {};

var v8PrototypeDefineBug;
var hasRequiredV8PrototypeDefineBug;

function requireV8PrototypeDefineBug () {
	if (hasRequiredV8PrototypeDefineBug) return v8PrototypeDefineBug;
	hasRequiredV8PrototypeDefineBug = 1;
	var DESCRIPTORS = /*@__PURE__*/ requireDescriptors();
	var fails = /*@__PURE__*/ requireFails();

	// V8 ~ Chrome 36-
	// https://bugs.chromium.org/p/v8/issues/detail?id=3334
	v8PrototypeDefineBug = DESCRIPTORS && fails(function () {
	  // eslint-disable-next-line es/no-object-defineproperty -- required for testing
	  return Object.defineProperty(function () { /* empty */ }, 'prototype', {
	    value: 42,
	    writable: false
	  }).prototype !== 42;
	});
	return v8PrototypeDefineBug;
}

var anObject;
var hasRequiredAnObject;

function requireAnObject () {
	if (hasRequiredAnObject) return anObject;
	hasRequiredAnObject = 1;
	var isObject = /*@__PURE__*/ requireIsObject();

	var $String = String;
	var $TypeError = TypeError;

	// `Assert: Type(argument) is Object`
	anObject = function (argument) {
	  if (isObject(argument)) return argument;
	  throw new $TypeError($String(argument) + ' is not an object');
	};
	return anObject;
}

var hasRequiredObjectDefineProperty;

function requireObjectDefineProperty () {
	if (hasRequiredObjectDefineProperty) return objectDefineProperty;
	hasRequiredObjectDefineProperty = 1;
	var DESCRIPTORS = /*@__PURE__*/ requireDescriptors();
	var IE8_DOM_DEFINE = /*@__PURE__*/ requireIe8DomDefine();
	var V8_PROTOTYPE_DEFINE_BUG = /*@__PURE__*/ requireV8PrototypeDefineBug();
	var anObject = /*@__PURE__*/ requireAnObject();
	var toPropertyKey = /*@__PURE__*/ requireToPropertyKey();

	var $TypeError = TypeError;
	// eslint-disable-next-line es/no-object-defineproperty -- safe
	var $defineProperty = Object.defineProperty;
	// eslint-disable-next-line es/no-object-getownpropertydescriptor -- safe
	var $getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;
	var ENUMERABLE = 'enumerable';
	var CONFIGURABLE = 'configurable';
	var WRITABLE = 'writable';

	// `Object.defineProperty` method
	// https://tc39.es/ecma262/#sec-object.defineproperty
	objectDefineProperty.f = DESCRIPTORS ? V8_PROTOTYPE_DEFINE_BUG ? function defineProperty(O, P, Attributes) {
	  anObject(O);
	  P = toPropertyKey(P);
	  anObject(Attributes);
	  if (typeof O === 'function' && P === 'prototype' && 'value' in Attributes && WRITABLE in Attributes && !Attributes[WRITABLE]) {
	    var current = $getOwnPropertyDescriptor(O, P);
	    if (current && current[WRITABLE]) {
	      O[P] = Attributes.value;
	      Attributes = {
	        configurable: CONFIGURABLE in Attributes ? Attributes[CONFIGURABLE] : current[CONFIGURABLE],
	        enumerable: ENUMERABLE in Attributes ? Attributes[ENUMERABLE] : current[ENUMERABLE],
	        writable: false
	      };
	    }
	  } return $defineProperty(O, P, Attributes);
	} : $defineProperty : function defineProperty(O, P, Attributes) {
	  anObject(O);
	  P = toPropertyKey(P);
	  anObject(Attributes);
	  if (IE8_DOM_DEFINE) try {
	    return $defineProperty(O, P, Attributes);
	  } catch (error) { /* empty */ }
	  if ('get' in Attributes || 'set' in Attributes) throw new $TypeError('Accessors not supported');
	  if ('value' in Attributes) O[P] = Attributes.value;
	  return O;
	};
	return objectDefineProperty;
}

var createNonEnumerableProperty;
var hasRequiredCreateNonEnumerableProperty;

function requireCreateNonEnumerableProperty () {
	if (hasRequiredCreateNonEnumerableProperty) return createNonEnumerableProperty;
	hasRequiredCreateNonEnumerableProperty = 1;
	var DESCRIPTORS = /*@__PURE__*/ requireDescriptors();
	var definePropertyModule = /*@__PURE__*/ requireObjectDefineProperty();
	var createPropertyDescriptor = /*@__PURE__*/ requireCreatePropertyDescriptor();

	createNonEnumerableProperty = DESCRIPTORS ? function (object, key, value) {
	  return definePropertyModule.f(object, key, createPropertyDescriptor(1, value));
	} : function (object, key, value) {
	  object[key] = value;
	  return object;
	};
	return createNonEnumerableProperty;
}

var _export;
var hasRequired_export;

function require_export () {
	if (hasRequired_export) return _export;
	hasRequired_export = 1;
	var globalThis = /*@__PURE__*/ requireGlobalThis();
	var apply = /*@__PURE__*/ requireFunctionApply();
	var uncurryThis = /*@__PURE__*/ requireFunctionUncurryThisClause();
	var isCallable = /*@__PURE__*/ requireIsCallable();
	var getOwnPropertyDescriptor = /*@__PURE__*/ requireObjectGetOwnPropertyDescriptor().f;
	var isForced = /*@__PURE__*/ requireIsForced();
	var path = /*@__PURE__*/ requirePath();
	var bind = /*@__PURE__*/ requireFunctionBindContext();
	var createNonEnumerableProperty = /*@__PURE__*/ requireCreateNonEnumerableProperty();
	var hasOwn = /*@__PURE__*/ requireHasOwnProperty();

	var wrapConstructor = function (NativeConstructor) {
	  var Wrapper = function (a, b, c) {
	    if (this instanceof Wrapper) {
	      switch (arguments.length) {
	        case 0: return new NativeConstructor();
	        case 1: return new NativeConstructor(a);
	        case 2: return new NativeConstructor(a, b);
	      } return new NativeConstructor(a, b, c);
	    } return apply(NativeConstructor, this, arguments);
	  };
	  Wrapper.prototype = NativeConstructor.prototype;
	  return Wrapper;
	};

	/*
	  options.target         - name of the target object
	  options.global         - target is the global object
	  options.stat           - export as static methods of target
	  options.proto          - export as prototype methods of target
	  options.real           - real prototype method for the `pure` version
	  options.forced         - export even if the native feature is available
	  options.bind           - bind methods to the target, required for the `pure` version
	  options.wrap           - wrap constructors to preventing global pollution, required for the `pure` version
	  options.unsafe         - use the simple assignment of property instead of delete + defineProperty
	  options.sham           - add a flag to not completely full polyfills
	  options.enumerable     - export as enumerable property
	  options.dontCallGetSet - prevent calling a getter on target
	  options.name           - the .name of the function if it does not match the key
	*/
	_export = function (options, source) {
	  var TARGET = options.target;
	  var GLOBAL = options.global;
	  var STATIC = options.stat;
	  var PROTO = options.proto;

	  var nativeSource = GLOBAL ? globalThis : STATIC ? globalThis[TARGET] : globalThis[TARGET] && globalThis[TARGET].prototype;

	  var target = GLOBAL ? path : path[TARGET] || createNonEnumerableProperty(path, TARGET, {})[TARGET];
	  var targetPrototype = target.prototype;

	  var FORCED, USE_NATIVE, VIRTUAL_PROTOTYPE;
	  var key, sourceProperty, targetProperty, nativeProperty, resultProperty, descriptor;

	  for (key in source) {
	    FORCED = isForced(GLOBAL ? key : TARGET + (STATIC ? '.' : '#') + key, options.forced);
	    // contains in native
	    USE_NATIVE = !FORCED && nativeSource && hasOwn(nativeSource, key);

	    targetProperty = target[key];

	    if (USE_NATIVE) if (options.dontCallGetSet) {
	      descriptor = getOwnPropertyDescriptor(nativeSource, key);
	      nativeProperty = descriptor && descriptor.value;
	    } else nativeProperty = nativeSource[key];

	    // export native or implementation
	    sourceProperty = (USE_NATIVE && nativeProperty) ? nativeProperty : source[key];

	    if (!FORCED && !PROTO && typeof targetProperty == typeof sourceProperty) continue;

	    // bind methods to global for calling from export context
	    if (options.bind && USE_NATIVE) resultProperty = bind(sourceProperty, globalThis);
	    // wrap global constructors for prevent changes in this version
	    else if (options.wrap && USE_NATIVE) resultProperty = wrapConstructor(sourceProperty);
	    // make static versions for prototype methods
	    else if (PROTO && isCallable(sourceProperty)) resultProperty = uncurryThis(sourceProperty);
	    // default case
	    else resultProperty = sourceProperty;

	    // add a flag to not completely full polyfills
	    if (options.sham || (sourceProperty && sourceProperty.sham) || (targetProperty && targetProperty.sham)) {
	      createNonEnumerableProperty(resultProperty, 'sham', true);
	    }

	    createNonEnumerableProperty(target, key, resultProperty);

	    if (PROTO) {
	      VIRTUAL_PROTOTYPE = TARGET + 'Prototype';
	      if (!hasOwn(path, VIRTUAL_PROTOTYPE)) {
	        createNonEnumerableProperty(path, VIRTUAL_PROTOTYPE, {});
	      }
	      // export virtual prototype methods
	      createNonEnumerableProperty(path[VIRTUAL_PROTOTYPE], key, sourceProperty);
	      // export real prototype methods
	      if (options.real && targetPrototype && (FORCED || !targetPrototype[key])) {
	        createNonEnumerableProperty(targetPrototype, key, sourceProperty);
	      }
	    }
	  }
	};
	return _export;
}

var mathSign;
var hasRequiredMathSign;

function requireMathSign () {
	if (hasRequiredMathSign) return mathSign;
	hasRequiredMathSign = 1;
	// `Math.sign` method implementation
	// https://tc39.es/ecma262/#sec-math.sign
	// eslint-disable-next-line es/no-math-sign -- safe
	mathSign = Math.sign || function sign(x) {
	  var n = +x;
	  // eslint-disable-next-line no-self-compare -- NaN check
	  return n === 0 || n !== n ? n : n < 0 ? -1 : 1;
	};
	return mathSign;
}

var hasRequiredEs_math_sign;

function requireEs_math_sign () {
	if (hasRequiredEs_math_sign) return es_math_sign;
	hasRequiredEs_math_sign = 1;
	var $ = /*@__PURE__*/ require_export();
	var sign = /*@__PURE__*/ requireMathSign();

	// `Math.sign` method
	// https://tc39.es/ecma262/#sec-math.sign
	$({ target: 'Math', stat: true }, {
	  sign: sign
	});
	return es_math_sign;
}

var sign$2;
var hasRequiredSign$2;

function requireSign$2 () {
	if (hasRequiredSign$2) return sign$2;
	hasRequiredSign$2 = 1;
	requireEs_math_sign();
	var path = /*@__PURE__*/ requirePath();

	sign$2 = path.Math.sign;
	return sign$2;
}

var sign$1;
var hasRequiredSign$1;

function requireSign$1 () {
	if (hasRequiredSign$1) return sign$1;
	hasRequiredSign$1 = 1;
	var parent = /*@__PURE__*/ requireSign$2();

	sign$1 = parent;
	return sign$1;
}

var sign;
var hasRequiredSign;

function requireSign () {
	if (hasRequiredSign) return sign;
	hasRequiredSign = 1;
	sign = /*@__PURE__*/ requireSign$1();
	return sign;
}

var signExports = requireSign();
var _Math$sign = /*@__PURE__*/getDefaultExportFromCjs(signExports);

/**
 * @param {number} [x]
 * @param {number} [y]
 * @param {number} [z]
 */
function Point3d(x, y, z) {
  this.x = x !== undefined ? x : 0;
  this.y = y !== undefined ? y : 0;
  this.z = z !== undefined ? z : 0;
}

/**
 * Subtract the two provided points, returns a-b
 * @param {Point3d} a
 * @param {Point3d} b
 * @returns {Point3d} a-b
 */
Point3d.subtract = function (a, b) {
  const sub = new Point3d();
  sub.x = a.x - b.x;
  sub.y = a.y - b.y;
  sub.z = a.z - b.z;
  return sub;
};

/**
 * Add the two provided points, returns a+b
 * @param {Point3d} a
 * @param {Point3d} b
 * @returns {Point3d} a+b
 */
Point3d.add = function (a, b) {
  const sum = new Point3d();
  sum.x = a.x + b.x;
  sum.y = a.y + b.y;
  sum.z = a.z + b.z;
  return sum;
};

/**
 * Calculate the average of two 3d points
 * @param {Point3d} a
 * @param {Point3d} b
 * @returns {Point3d} The average, (a+b)/2
 */
Point3d.avg = function (a, b) {
  return new Point3d((a.x + b.x) / 2, (a.y + b.y) / 2, (a.z + b.z) / 2);
};

/**
 * Scale the provided point by a scalar, returns p*c
 * @param {Point3d} p
 * @param {number} c
 * @returns {Point3d} p*c
 */
Point3d.scalarProduct = function (p, c) {
  return new Point3d(p.x * c, p.y * c, p.z * c);
};

/**
 * Calculate the dot product of the two provided points, returns a.b
 * Documentation: http://en.wikipedia.org/wiki/Dot_product
 * @param {Point3d} a
 * @param {Point3d} b
 * @returns {Point3d} dot product a.b
 */
Point3d.dotProduct = function (a, b) {
  return a.x * b.x + a.y * b.y + a.z * b.z;
};

/**
 * Calculate the cross product of the two provided points, returns axb
 * Documentation: http://en.wikipedia.org/wiki/Cross_product
 * @param {Point3d} a
 * @param {Point3d} b
 * @returns {Point3d} cross product axb
 */
Point3d.crossProduct = function (a, b) {
  const crossproduct = new Point3d();
  crossproduct.x = a.y * b.z - a.z * b.y;
  crossproduct.y = a.z * b.x - a.x * b.z;
  crossproduct.z = a.x * b.y - a.y * b.x;
  return crossproduct;
};

/**
 * Retrieve the length of the vector (or the distance from this point to the origin
 * @returns {number}  length
 */
Point3d.prototype.length = function () {
  return Math.sqrt(this.x * this.x + this.y * this.y + this.z * this.z);
};

/**
 * Return a normalized vector pointing in the same direction.
 * @returns {Point3d}  normalized
 */
Point3d.prototype.normalize = function () {
  return Point3d.scalarProduct(this, 1 / this.length());
};

/**
 * The camera is mounted on a (virtual) camera arm. The camera arm can rotate
 * The camera is always looking in the direction of the origin of the arm.
 * This way, the camera always rotates around one fixed point, the location
 * of the camera arm.
 *
 * Documentation:
 * http://en.wikipedia.org/wiki/3D_projection
 * @class Camera
 */
function Camera() {
  this.armLocation = new Point3d();
  this.armRotation = {};
  this.armRotation.horizontal = 0;
  this.armRotation.vertical = 0;
  this.armLength = 1.7;
  this.cameraOffset = new Point3d();
  this.offsetMultiplier = 0.6;
  this.cameraLocation = new Point3d();
  this.cameraRotation = new Point3d(0.5 * Math.PI, 0, 0);
  this.calculateCameraOrientation();
}

/**
 * Set offset camera in camera coordinates
 * @param {number} x offset by camera horisontal
 * @param {number} y offset by camera vertical
 */
Camera.prototype.setOffset = function (x, y) {
  const abs = Math.abs,
    sign = _Math$sign,
    mul = this.offsetMultiplier,
    border = this.armLength * mul;
  if (abs(x) > border) {
    x = sign(x) * border;
  }
  if (abs(y) > border) {
    y = sign(y) * border;
  }
  this.cameraOffset.x = x;
  this.cameraOffset.y = y;
  this.calculateCameraOrientation();
};

/**
 * Get camera offset by horizontal and vertical
 * @returns {number}
 */
Camera.prototype.getOffset = function () {
  return this.cameraOffset;
};

/**
 * Set the location (origin) of the arm
 * @param {number} x  Normalized value of x
 * @param {number} y  Normalized value of y
 * @param {number} z  Normalized value of z
 */
Camera.prototype.setArmLocation = function (x, y, z) {
  this.armLocation.x = x;
  this.armLocation.y = y;
  this.armLocation.z = z;
  this.calculateCameraOrientation();
};

/**
 * Set the rotation of the camera arm
 * @param {number} horizontal   The horizontal rotation, between 0 and 2*PI.
 *                Optional, can be left undefined.
 * @param {number} vertical   The vertical rotation, between 0 and 0.5*PI
 *                if vertical=0.5*PI, the graph is shown from the
 *                top. Optional, can be left undefined.
 */
Camera.prototype.setArmRotation = function (horizontal, vertical) {
  if (horizontal !== undefined) {
    this.armRotation.horizontal = horizontal;
  }
  if (vertical !== undefined) {
    this.armRotation.vertical = vertical;
    if (this.armRotation.vertical < 0) this.armRotation.vertical = 0;
    if (this.armRotation.vertical > 0.5 * Math.PI) this.armRotation.vertical = 0.5 * Math.PI;
  }
  if (horizontal !== undefined || vertical !== undefined) {
    this.calculateCameraOrientation();
  }
};

/**
 * Retrieve the current arm rotation
 * @returns {object}   An object with parameters horizontal and vertical
 */
Camera.prototype.getArmRotation = function () {
  const rot = {};
  rot.horizontal = this.armRotation.horizontal;
  rot.vertical = this.armRotation.vertical;
  return rot;
};

/**
 * Set the (normalized) length of the camera arm.
 * @param {number} length A length between 0.71 and 5.0
 */
Camera.prototype.setArmLength = function (length) {
  if (length === undefined) return;
  this.armLength = length;

  // Radius must be larger than the corner of the graph,
  // which has a distance of sqrt(0.5^2+0.5^2) = 0.71 from the center of the
  // graph
  if (this.armLength < 0.71) this.armLength = 0.71;
  if (this.armLength > 5.0) this.armLength = 5.0;
  this.setOffset(this.cameraOffset.x, this.cameraOffset.y);
  this.calculateCameraOrientation();
};

/**
 * Retrieve the arm length
 * @returns {number} length
 */
Camera.prototype.getArmLength = function () {
  return this.armLength;
};

/**
 * Retrieve the camera location
 * @returns {Point3d} cameraLocation
 */
Camera.prototype.getCameraLocation = function () {
  return this.cameraLocation;
};

/**
 * Retrieve the camera rotation
 * @returns {Point3d} cameraRotation
 */
Camera.prototype.getCameraRotation = function () {
  return this.cameraRotation;
};

/**
 * Calculate the location and rotation of the camera based on the
 * position and orientation of the camera arm
 */
Camera.prototype.calculateCameraOrientation = function () {
  // calculate location of the camera
  this.cameraLocation.x = this.armLocation.x - this.armLength * Math.sin(this.armRotation.horizontal) * Math.cos(this.armRotation.vertical);
  this.cameraLocation.y = this.armLocation.y - this.armLength * Math.cos(this.armRotation.horizontal) * Math.cos(this.armRotation.vertical);
  this.cameraLocation.z = this.armLocation.z + this.armLength * Math.sin(this.armRotation.vertical);

  // calculate rotation of the camera
  this.cameraRotation.x = Math.PI / 2 - this.armRotation.vertical;
  this.cameraRotation.y = 0;
  this.cameraRotation.z = -this.armRotation.horizontal;
  const xa = this.cameraRotation.x;
  const za = this.cameraRotation.z;
  const dx = this.cameraOffset.x;
  const dy = this.cameraOffset.y;
  const sin = Math.sin,
    cos = Math.cos;
  this.cameraLocation.x = this.cameraLocation.x + dx * cos(za) + dy * -sin(za) * cos(xa);
  this.cameraLocation.y = this.cameraLocation.y + dx * sin(za) + dy * cos(za) * cos(xa);
  this.cameraLocation.z = this.cameraLocation.z + dy * sin(xa);
};

var web_domCollections_iterator = {};

var addToUnscopables;
var hasRequiredAddToUnscopables;

function requireAddToUnscopables () {
	if (hasRequiredAddToUnscopables) return addToUnscopables;
	hasRequiredAddToUnscopables = 1;
	addToUnscopables = function () { /* empty */ };
	return addToUnscopables;
}

var iterators;
var hasRequiredIterators;

function requireIterators () {
	if (hasRequiredIterators) return iterators;
	hasRequiredIterators = 1;
	iterators = Object.create ? Object.create(null) : {};
	return iterators;
}

var weakMapBasicDetection;
var hasRequiredWeakMapBasicDetection;

function requireWeakMapBasicDetection () {
	if (hasRequiredWeakMapBasicDetection) return weakMapBasicDetection;
	hasRequiredWeakMapBasicDetection = 1;
	var globalThis = /*@__PURE__*/ requireGlobalThis();
	var isCallable = /*@__PURE__*/ requireIsCallable();

	var WeakMap = globalThis.WeakMap;

	weakMapBasicDetection = isCallable(WeakMap) && /native code/.test(String(WeakMap));
	return weakMapBasicDetection;
}

var sharedKey;
var hasRequiredSharedKey;

function requireSharedKey () {
	if (hasRequiredSharedKey) return sharedKey;
	hasRequiredSharedKey = 1;
	var shared = /*@__PURE__*/ requireShared();
	var uid = /*@__PURE__*/ requireUid();

	var keys = shared('keys');

	sharedKey = function (key) {
	  return keys[key] || (keys[key] = uid(key));
	};
	return sharedKey;
}

var hiddenKeys;
var hasRequiredHiddenKeys;

function requireHiddenKeys () {
	if (hasRequiredHiddenKeys) return hiddenKeys;
	hasRequiredHiddenKeys = 1;
	hiddenKeys = {};
	return hiddenKeys;
}

var internalState;
var hasRequiredInternalState;

function requireInternalState () {
	if (hasRequiredInternalState) return internalState;
	hasRequiredInternalState = 1;
	var NATIVE_WEAK_MAP = /*@__PURE__*/ requireWeakMapBasicDetection();
	var globalThis = /*@__PURE__*/ requireGlobalThis();
	var isObject = /*@__PURE__*/ requireIsObject();
	var createNonEnumerableProperty = /*@__PURE__*/ requireCreateNonEnumerableProperty();
	var hasOwn = /*@__PURE__*/ requireHasOwnProperty();
	var shared = /*@__PURE__*/ requireSharedStore();
	var sharedKey = /*@__PURE__*/ requireSharedKey();
	var hiddenKeys = /*@__PURE__*/ requireHiddenKeys();

	var OBJECT_ALREADY_INITIALIZED = 'Object already initialized';
	var TypeError = globalThis.TypeError;
	var WeakMap = globalThis.WeakMap;
	var set, get, has;

	var enforce = function (it) {
	  return has(it) ? get(it) : set(it, {});
	};

	var getterFor = function (TYPE) {
	  return function (it) {
	    var state;
	    if (!isObject(it) || (state = get(it)).type !== TYPE) {
	      throw new TypeError('Incompatible receiver, ' + TYPE + ' required');
	    } return state;
	  };
	};

	if (NATIVE_WEAK_MAP || shared.state) {
	  var store = shared.state || (shared.state = new WeakMap());
	  /* eslint-disable no-self-assign -- prototype methods protection */
	  store.get = store.get;
	  store.has = store.has;
	  store.set = store.set;
	  /* eslint-enable no-self-assign -- prototype methods protection */
	  set = function (it, metadata) {
	    if (store.has(it)) throw new TypeError(OBJECT_ALREADY_INITIALIZED);
	    metadata.facade = it;
	    store.set(it, metadata);
	    return metadata;
	  };
	  get = function (it) {
	    return store.get(it) || {};
	  };
	  has = function (it) {
	    return store.has(it);
	  };
	} else {
	  var STATE = sharedKey('state');
	  hiddenKeys[STATE] = true;
	  set = function (it, metadata) {
	    if (hasOwn(it, STATE)) throw new TypeError(OBJECT_ALREADY_INITIALIZED);
	    metadata.facade = it;
	    createNonEnumerableProperty(it, STATE, metadata);
	    return metadata;
	  };
	  get = function (it) {
	    return hasOwn(it, STATE) ? it[STATE] : {};
	  };
	  has = function (it) {
	    return hasOwn(it, STATE);
	  };
	}

	internalState = {
	  set: set,
	  get: get,
	  has: has,
	  enforce: enforce,
	  getterFor: getterFor
	};
	return internalState;
}

var functionName;
var hasRequiredFunctionName;

function requireFunctionName () {
	if (hasRequiredFunctionName) return functionName;
	hasRequiredFunctionName = 1;
	var DESCRIPTORS = /*@__PURE__*/ requireDescriptors();
	var hasOwn = /*@__PURE__*/ requireHasOwnProperty();

	var FunctionPrototype = Function.prototype;
	// eslint-disable-next-line es/no-object-getownpropertydescriptor -- safe
	var getDescriptor = DESCRIPTORS && Object.getOwnPropertyDescriptor;

	var EXISTS = hasOwn(FunctionPrototype, 'name');
	// additional protection from minified / mangled / dropped function names
	var PROPER = EXISTS && function something() { /* empty */ }.name === 'something';
	var CONFIGURABLE = EXISTS && (!DESCRIPTORS || (DESCRIPTORS && getDescriptor(FunctionPrototype, 'name').configurable));

	functionName = {
	  EXISTS: EXISTS,
	  PROPER: PROPER,
	  CONFIGURABLE: CONFIGURABLE
	};
	return functionName;
}

var objectDefineProperties = {};

var mathTrunc;
var hasRequiredMathTrunc;

function requireMathTrunc () {
	if (hasRequiredMathTrunc) return mathTrunc;
	hasRequiredMathTrunc = 1;
	var ceil = Math.ceil;
	var floor = Math.floor;

	// `Math.trunc` method
	// https://tc39.es/ecma262/#sec-math.trunc
	// eslint-disable-next-line es/no-math-trunc -- safe
	mathTrunc = Math.trunc || function trunc(x) {
	  var n = +x;
	  return (n > 0 ? floor : ceil)(n);
	};
	return mathTrunc;
}

var toIntegerOrInfinity;
var hasRequiredToIntegerOrInfinity;

function requireToIntegerOrInfinity () {
	if (hasRequiredToIntegerOrInfinity) return toIntegerOrInfinity;
	hasRequiredToIntegerOrInfinity = 1;
	var trunc = /*@__PURE__*/ requireMathTrunc();

	// `ToIntegerOrInfinity` abstract operation
	// https://tc39.es/ecma262/#sec-tointegerorinfinity
	toIntegerOrInfinity = function (argument) {
	  var number = +argument;
	  // eslint-disable-next-line no-self-compare -- NaN check
	  return number !== number || number === 0 ? 0 : trunc(number);
	};
	return toIntegerOrInfinity;
}

var toAbsoluteIndex;
var hasRequiredToAbsoluteIndex;

function requireToAbsoluteIndex () {
	if (hasRequiredToAbsoluteIndex) return toAbsoluteIndex;
	hasRequiredToAbsoluteIndex = 1;
	var toIntegerOrInfinity = /*@__PURE__*/ requireToIntegerOrInfinity();

	var max = Math.max;
	var min = Math.min;

	// Helper for a popular repeating case of the spec:
	// Let integer be ? ToInteger(index).
	// If integer < 0, let result be max((length + integer), 0); else let result be min(integer, length).
	toAbsoluteIndex = function (index, length) {
	  var integer = toIntegerOrInfinity(index);
	  return integer < 0 ? max(integer + length, 0) : min(integer, length);
	};
	return toAbsoluteIndex;
}

var toLength;
var hasRequiredToLength;

function requireToLength () {
	if (hasRequiredToLength) return toLength;
	hasRequiredToLength = 1;
	var toIntegerOrInfinity = /*@__PURE__*/ requireToIntegerOrInfinity();

	var min = Math.min;

	// `ToLength` abstract operation
	// https://tc39.es/ecma262/#sec-tolength
	toLength = function (argument) {
	  var len = toIntegerOrInfinity(argument);
	  return len > 0 ? min(len, 0x1FFFFFFFFFFFFF) : 0; // 2 ** 53 - 1 == 9007199254740991
	};
	return toLength;
}

var lengthOfArrayLike;
var hasRequiredLengthOfArrayLike;

function requireLengthOfArrayLike () {
	if (hasRequiredLengthOfArrayLike) return lengthOfArrayLike;
	hasRequiredLengthOfArrayLike = 1;
	var toLength = /*@__PURE__*/ requireToLength();

	// `LengthOfArrayLike` abstract operation
	// https://tc39.es/ecma262/#sec-lengthofarraylike
	lengthOfArrayLike = function (obj) {
	  return toLength(obj.length);
	};
	return lengthOfArrayLike;
}

var arrayIncludes;
var hasRequiredArrayIncludes;

function requireArrayIncludes () {
	if (hasRequiredArrayIncludes) return arrayIncludes;
	hasRequiredArrayIncludes = 1;
	var toIndexedObject = /*@__PURE__*/ requireToIndexedObject();
	var toAbsoluteIndex = /*@__PURE__*/ requireToAbsoluteIndex();
	var lengthOfArrayLike = /*@__PURE__*/ requireLengthOfArrayLike();

	// `Array.prototype.{ indexOf, includes }` methods implementation
	var createMethod = function (IS_INCLUDES) {
	  return function ($this, el, fromIndex) {
	    var O = toIndexedObject($this);
	    var length = lengthOfArrayLike(O);
	    if (length === 0) return !IS_INCLUDES && -1;
	    var index = toAbsoluteIndex(fromIndex, length);
	    var value;
	    // Array#includes uses SameValueZero equality algorithm
	    // eslint-disable-next-line no-self-compare -- NaN check
	    if (IS_INCLUDES && el !== el) while (length > index) {
	      value = O[index++];
	      // eslint-disable-next-line no-self-compare -- NaN check
	      if (value !== value) return true;
	    // Array#indexOf ignores holes, Array#includes - not
	    } else for (;length > index; index++) {
	      if ((IS_INCLUDES || index in O) && O[index] === el) return IS_INCLUDES || index || 0;
	    } return !IS_INCLUDES && -1;
	  };
	};

	arrayIncludes = {
	  // `Array.prototype.includes` method
	  // https://tc39.es/ecma262/#sec-array.prototype.includes
	  includes: createMethod(true),
	  // `Array.prototype.indexOf` method
	  // https://tc39.es/ecma262/#sec-array.prototype.indexof
	  indexOf: createMethod(false)
	};
	return arrayIncludes;
}

var objectKeysInternal;
var hasRequiredObjectKeysInternal;

function requireObjectKeysInternal () {
	if (hasRequiredObjectKeysInternal) return objectKeysInternal;
	hasRequiredObjectKeysInternal = 1;
	var uncurryThis = /*@__PURE__*/ requireFunctionUncurryThis();
	var hasOwn = /*@__PURE__*/ requireHasOwnProperty();
	var toIndexedObject = /*@__PURE__*/ requireToIndexedObject();
	var indexOf = /*@__PURE__*/ requireArrayIncludes().indexOf;
	var hiddenKeys = /*@__PURE__*/ requireHiddenKeys();

	var push = uncurryThis([].push);

	objectKeysInternal = function (object, names) {
	  var O = toIndexedObject(object);
	  var i = 0;
	  var result = [];
	  var key;
	  for (key in O) !hasOwn(hiddenKeys, key) && hasOwn(O, key) && push(result, key);
	  // Don't enum bug & hidden keys
	  while (names.length > i) if (hasOwn(O, key = names[i++])) {
	    ~indexOf(result, key) || push(result, key);
	  }
	  return result;
	};
	return objectKeysInternal;
}

var enumBugKeys;
var hasRequiredEnumBugKeys;

function requireEnumBugKeys () {
	if (hasRequiredEnumBugKeys) return enumBugKeys;
	hasRequiredEnumBugKeys = 1;
	// IE8- don't enum bug keys
	enumBugKeys = [
	  'constructor',
	  'hasOwnProperty',
	  'isPrototypeOf',
	  'propertyIsEnumerable',
	  'toLocaleString',
	  'toString',
	  'valueOf'
	];
	return enumBugKeys;
}

var objectKeys;
var hasRequiredObjectKeys;

function requireObjectKeys () {
	if (hasRequiredObjectKeys) return objectKeys;
	hasRequiredObjectKeys = 1;
	var internalObjectKeys = /*@__PURE__*/ requireObjectKeysInternal();
	var enumBugKeys = /*@__PURE__*/ requireEnumBugKeys();

	// `Object.keys` method
	// https://tc39.es/ecma262/#sec-object.keys
	// eslint-disable-next-line es/no-object-keys -- safe
	objectKeys = Object.keys || function keys(O) {
	  return internalObjectKeys(O, enumBugKeys);
	};
	return objectKeys;
}

var hasRequiredObjectDefineProperties;

function requireObjectDefineProperties () {
	if (hasRequiredObjectDefineProperties) return objectDefineProperties;
	hasRequiredObjectDefineProperties = 1;
	var DESCRIPTORS = /*@__PURE__*/ requireDescriptors();
	var V8_PROTOTYPE_DEFINE_BUG = /*@__PURE__*/ requireV8PrototypeDefineBug();
	var definePropertyModule = /*@__PURE__*/ requireObjectDefineProperty();
	var anObject = /*@__PURE__*/ requireAnObject();
	var toIndexedObject = /*@__PURE__*/ requireToIndexedObject();
	var objectKeys = /*@__PURE__*/ requireObjectKeys();

	// `Object.defineProperties` method
	// https://tc39.es/ecma262/#sec-object.defineproperties
	// eslint-disable-next-line es/no-object-defineproperties -- safe
	objectDefineProperties.f = DESCRIPTORS && !V8_PROTOTYPE_DEFINE_BUG ? Object.defineProperties : function defineProperties(O, Properties) {
	  anObject(O);
	  var props = toIndexedObject(Properties);
	  var keys = objectKeys(Properties);
	  var length = keys.length;
	  var index = 0;
	  var key;
	  while (length > index) definePropertyModule.f(O, key = keys[index++], props[key]);
	  return O;
	};
	return objectDefineProperties;
}

var html;
var hasRequiredHtml;

function requireHtml () {
	if (hasRequiredHtml) return html;
	hasRequiredHtml = 1;
	var getBuiltIn = /*@__PURE__*/ requireGetBuiltIn();

	html = getBuiltIn('document', 'documentElement');
	return html;
}

var objectCreate;
var hasRequiredObjectCreate;

function requireObjectCreate () {
	if (hasRequiredObjectCreate) return objectCreate;
	hasRequiredObjectCreate = 1;
	/* global ActiveXObject -- old IE, WSH */
	var anObject = /*@__PURE__*/ requireAnObject();
	var definePropertiesModule = /*@__PURE__*/ requireObjectDefineProperties();
	var enumBugKeys = /*@__PURE__*/ requireEnumBugKeys();
	var hiddenKeys = /*@__PURE__*/ requireHiddenKeys();
	var html = /*@__PURE__*/ requireHtml();
	var documentCreateElement = /*@__PURE__*/ requireDocumentCreateElement();
	var sharedKey = /*@__PURE__*/ requireSharedKey();

	var GT = '>';
	var LT = '<';
	var PROTOTYPE = 'prototype';
	var SCRIPT = 'script';
	var IE_PROTO = sharedKey('IE_PROTO');

	var EmptyConstructor = function () { /* empty */ };

	var scriptTag = function (content) {
	  return LT + SCRIPT + GT + content + LT + '/' + SCRIPT + GT;
	};

	// Create object with fake `null` prototype: use ActiveX Object with cleared prototype
	var NullProtoObjectViaActiveX = function (activeXDocument) {
	  activeXDocument.write(scriptTag(''));
	  activeXDocument.close();
	  var temp = activeXDocument.parentWindow.Object;
	  // eslint-disable-next-line no-useless-assignment -- avoid memory leak
	  activeXDocument = null;
	  return temp;
	};

	// Create object with fake `null` prototype: use iframe Object with cleared prototype
	var NullProtoObjectViaIFrame = function () {
	  // Thrash, waste and sodomy: IE GC bug
	  var iframe = documentCreateElement('iframe');
	  var JS = 'java' + SCRIPT + ':';
	  var iframeDocument;
	  iframe.style.display = 'none';
	  html.appendChild(iframe);
	  // https://github.com/zloirock/core-js/issues/475
	  iframe.src = String(JS);
	  iframeDocument = iframe.contentWindow.document;
	  iframeDocument.open();
	  iframeDocument.write(scriptTag('document.F=Object'));
	  iframeDocument.close();
	  return iframeDocument.F;
	};

	// Check for document.domain and active x support
	// No need to use active x approach when document.domain is not set
	// see https://github.com/es-shims/es5-shim/issues/150
	// variation of https://github.com/kitcambridge/es5-shim/commit/4f738ac066346
	// avoid IE GC bug
	var activeXDocument;
	var NullProtoObject = function () {
	  try {
	    activeXDocument = new ActiveXObject('htmlfile');
	  } catch (error) { /* ignore */ }
	  NullProtoObject = typeof document != 'undefined'
	    ? document.domain && activeXDocument
	      ? NullProtoObjectViaActiveX(activeXDocument) // old IE
	      : NullProtoObjectViaIFrame()
	    : NullProtoObjectViaActiveX(activeXDocument); // WSH
	  var length = enumBugKeys.length;
	  while (length--) delete NullProtoObject[PROTOTYPE][enumBugKeys[length]];
	  return NullProtoObject();
	};

	hiddenKeys[IE_PROTO] = true;

	// `Object.create` method
	// https://tc39.es/ecma262/#sec-object.create
	// eslint-disable-next-line es/no-object-create -- safe
	objectCreate = Object.create || function create(O, Properties) {
	  var result;
	  if (O !== null) {
	    EmptyConstructor[PROTOTYPE] = anObject(O);
	    result = new EmptyConstructor();
	    EmptyConstructor[PROTOTYPE] = null;
	    // add "__proto__" for Object.getPrototypeOf polyfill
	    result[IE_PROTO] = O;
	  } else result = NullProtoObject();
	  return Properties === undefined ? result : definePropertiesModule.f(result, Properties);
	};
	return objectCreate;
}

var correctPrototypeGetter;
var hasRequiredCorrectPrototypeGetter;

function requireCorrectPrototypeGetter () {
	if (hasRequiredCorrectPrototypeGetter) return correctPrototypeGetter;
	hasRequiredCorrectPrototypeGetter = 1;
	var fails = /*@__PURE__*/ requireFails();

	correctPrototypeGetter = !fails(function () {
	  function F() { /* empty */ }
	  F.prototype.constructor = null;
	  // eslint-disable-next-line es/no-object-getprototypeof -- required for testing
	  return Object.getPrototypeOf(new F()) !== F.prototype;
	});
	return correctPrototypeGetter;
}

var objectGetPrototypeOf;
var hasRequiredObjectGetPrototypeOf;

function requireObjectGetPrototypeOf () {
	if (hasRequiredObjectGetPrototypeOf) return objectGetPrototypeOf;
	hasRequiredObjectGetPrototypeOf = 1;
	var hasOwn = /*@__PURE__*/ requireHasOwnProperty();
	var isCallable = /*@__PURE__*/ requireIsCallable();
	var toObject = /*@__PURE__*/ requireToObject();
	var sharedKey = /*@__PURE__*/ requireSharedKey();
	var CORRECT_PROTOTYPE_GETTER = /*@__PURE__*/ requireCorrectPrototypeGetter();

	var IE_PROTO = sharedKey('IE_PROTO');
	var $Object = Object;
	var ObjectPrototype = $Object.prototype;

	// `Object.getPrototypeOf` method
	// https://tc39.es/ecma262/#sec-object.getprototypeof
	// eslint-disable-next-line es/no-object-getprototypeof -- safe
	objectGetPrototypeOf = CORRECT_PROTOTYPE_GETTER ? $Object.getPrototypeOf : function (O) {
	  var object = toObject(O);
	  if (hasOwn(object, IE_PROTO)) return object[IE_PROTO];
	  var constructor = object.constructor;
	  if (isCallable(constructor) && object instanceof constructor) {
	    return constructor.prototype;
	  } return object instanceof $Object ? ObjectPrototype : null;
	};
	return objectGetPrototypeOf;
}

var defineBuiltIn;
var hasRequiredDefineBuiltIn;

function requireDefineBuiltIn () {
	if (hasRequiredDefineBuiltIn) return defineBuiltIn;
	hasRequiredDefineBuiltIn = 1;
	var createNonEnumerableProperty = /*@__PURE__*/ requireCreateNonEnumerableProperty();

	defineBuiltIn = function (target, key, value, options) {
	  if (options && options.enumerable) target[key] = value;
	  else createNonEnumerableProperty(target, key, value);
	  return target;
	};
	return defineBuiltIn;
}

var iteratorsCore;
var hasRequiredIteratorsCore;

function requireIteratorsCore () {
	if (hasRequiredIteratorsCore) return iteratorsCore;
	hasRequiredIteratorsCore = 1;
	var fails = /*@__PURE__*/ requireFails();
	var isCallable = /*@__PURE__*/ requireIsCallable();
	var isObject = /*@__PURE__*/ requireIsObject();
	var create = /*@__PURE__*/ requireObjectCreate();
	var getPrototypeOf = /*@__PURE__*/ requireObjectGetPrototypeOf();
	var defineBuiltIn = /*@__PURE__*/ requireDefineBuiltIn();
	var wellKnownSymbol = /*@__PURE__*/ requireWellKnownSymbol();
	var IS_PURE = /*@__PURE__*/ requireIsPure();

	var ITERATOR = wellKnownSymbol('iterator');
	var BUGGY_SAFARI_ITERATORS = false;

	// `%IteratorPrototype%` object
	// https://tc39.es/ecma262/#sec-%iteratorprototype%-object
	var IteratorPrototype, PrototypeOfArrayIteratorPrototype, arrayIterator;

	/* eslint-disable es/no-array-prototype-keys -- safe */
	if ([].keys) {
	  arrayIterator = [].keys();
	  // Safari 8 has buggy iterators w/o `next`
	  if (!('next' in arrayIterator)) BUGGY_SAFARI_ITERATORS = true;
	  else {
	    PrototypeOfArrayIteratorPrototype = getPrototypeOf(getPrototypeOf(arrayIterator));
	    if (PrototypeOfArrayIteratorPrototype !== Object.prototype) IteratorPrototype = PrototypeOfArrayIteratorPrototype;
	  }
	}

	var NEW_ITERATOR_PROTOTYPE = !isObject(IteratorPrototype) || fails(function () {
	  var test = {};
	  // FF44- legacy iterators case
	  return IteratorPrototype[ITERATOR].call(test) !== test;
	});

	if (NEW_ITERATOR_PROTOTYPE) IteratorPrototype = {};
	else if (IS_PURE) IteratorPrototype = create(IteratorPrototype);

	// `%IteratorPrototype%[@@iterator]()` method
	// https://tc39.es/ecma262/#sec-%iteratorprototype%-@@iterator
	if (!isCallable(IteratorPrototype[ITERATOR])) {
	  defineBuiltIn(IteratorPrototype, ITERATOR, function () {
	    return this;
	  });
	}

	iteratorsCore = {
	  IteratorPrototype: IteratorPrototype,
	  BUGGY_SAFARI_ITERATORS: BUGGY_SAFARI_ITERATORS
	};
	return iteratorsCore;
}

var toStringTagSupport;
var hasRequiredToStringTagSupport;

function requireToStringTagSupport () {
	if (hasRequiredToStringTagSupport) return toStringTagSupport;
	hasRequiredToStringTagSupport = 1;
	var wellKnownSymbol = /*@__PURE__*/ requireWellKnownSymbol();

	var TO_STRING_TAG = wellKnownSymbol('toStringTag');
	var test = {};
	// eslint-disable-next-line unicorn/no-immediate-mutation -- ES3 syntax limitation
	test[TO_STRING_TAG] = 'z';

	toStringTagSupport = String(test) === '[object z]';
	return toStringTagSupport;
}

var classof;
var hasRequiredClassof;

function requireClassof () {
	if (hasRequiredClassof) return classof;
	hasRequiredClassof = 1;
	var TO_STRING_TAG_SUPPORT = /*@__PURE__*/ requireToStringTagSupport();
	var isCallable = /*@__PURE__*/ requireIsCallable();
	var classofRaw = /*@__PURE__*/ requireClassofRaw();
	var wellKnownSymbol = /*@__PURE__*/ requireWellKnownSymbol();

	var TO_STRING_TAG = wellKnownSymbol('toStringTag');
	var $Object = Object;

	// ES3 wrong here
	var CORRECT_ARGUMENTS = classofRaw(function () { return arguments; }()) === 'Arguments';

	// fallback for IE11 Script Access Denied error
	var tryGet = function (it, key) {
	  try {
	    return it[key];
	  } catch (error) { /* empty */ }
	};

	// getting tag from ES6+ `Object.prototype.toString`
	classof = TO_STRING_TAG_SUPPORT ? classofRaw : function (it) {
	  var O, tag, result;
	  return it === undefined ? 'Undefined' : it === null ? 'Null'
	    // @@toStringTag case
	    : typeof (tag = tryGet(O = $Object(it), TO_STRING_TAG)) == 'string' ? tag
	    // builtinTag case
	    : CORRECT_ARGUMENTS ? classofRaw(O)
	    // ES3 arguments fallback
	    : (result = classofRaw(O)) === 'Object' && isCallable(O.callee) ? 'Arguments' : result;
	};
	return classof;
}

var objectToString;
var hasRequiredObjectToString;

function requireObjectToString () {
	if (hasRequiredObjectToString) return objectToString;
	hasRequiredObjectToString = 1;
	var TO_STRING_TAG_SUPPORT = /*@__PURE__*/ requireToStringTagSupport();
	var classof = /*@__PURE__*/ requireClassof();

	// `Object.prototype.toString` method implementation
	// https://tc39.es/ecma262/#sec-object.prototype.tostring
	objectToString = TO_STRING_TAG_SUPPORT ? {}.toString : function toString() {
	  return '[object ' + classof(this) + ']';
	};
	return objectToString;
}

var setToStringTag;
var hasRequiredSetToStringTag;

function requireSetToStringTag () {
	if (hasRequiredSetToStringTag) return setToStringTag;
	hasRequiredSetToStringTag = 1;
	var TO_STRING_TAG_SUPPORT = /*@__PURE__*/ requireToStringTagSupport();
	var defineProperty = /*@__PURE__*/ requireObjectDefineProperty().f;
	var createNonEnumerableProperty = /*@__PURE__*/ requireCreateNonEnumerableProperty();
	var hasOwn = /*@__PURE__*/ requireHasOwnProperty();
	var toString = /*@__PURE__*/ requireObjectToString();
	var wellKnownSymbol = /*@__PURE__*/ requireWellKnownSymbol();

	var TO_STRING_TAG = wellKnownSymbol('toStringTag');

	setToStringTag = function (it, TAG, STATIC, SET_METHOD) {
	  var target = STATIC ? it : it && it.prototype;
	  if (target) {
	    if (!hasOwn(target, TO_STRING_TAG)) {
	      defineProperty(target, TO_STRING_TAG, { configurable: true, value: TAG });
	    }
	    if (SET_METHOD && !TO_STRING_TAG_SUPPORT) {
	      createNonEnumerableProperty(target, 'toString', toString);
	    }
	  }
	};
	return setToStringTag;
}

var iteratorCreateConstructor;
var hasRequiredIteratorCreateConstructor;

function requireIteratorCreateConstructor () {
	if (hasRequiredIteratorCreateConstructor) return iteratorCreateConstructor;
	hasRequiredIteratorCreateConstructor = 1;
	var IteratorPrototype = /*@__PURE__*/ requireIteratorsCore().IteratorPrototype;
	var create = /*@__PURE__*/ requireObjectCreate();
	var createPropertyDescriptor = /*@__PURE__*/ requireCreatePropertyDescriptor();
	var setToStringTag = /*@__PURE__*/ requireSetToStringTag();
	var Iterators = /*@__PURE__*/ requireIterators();

	var returnThis = function () { return this; };

	iteratorCreateConstructor = function (IteratorConstructor, NAME, next, ENUMERABLE_NEXT) {
	  var TO_STRING_TAG = NAME + ' Iterator';
	  IteratorConstructor.prototype = create(IteratorPrototype, { next: createPropertyDescriptor(+!ENUMERABLE_NEXT, next) });
	  setToStringTag(IteratorConstructor, TO_STRING_TAG, false, true);
	  Iterators[TO_STRING_TAG] = returnThis;
	  return IteratorConstructor;
	};
	return iteratorCreateConstructor;
}

var functionUncurryThisAccessor;
var hasRequiredFunctionUncurryThisAccessor;

function requireFunctionUncurryThisAccessor () {
	if (hasRequiredFunctionUncurryThisAccessor) return functionUncurryThisAccessor;
	hasRequiredFunctionUncurryThisAccessor = 1;
	var uncurryThis = /*@__PURE__*/ requireFunctionUncurryThis();
	var aCallable = /*@__PURE__*/ requireACallable();

	functionUncurryThisAccessor = function (object, key, method) {
	  try {
	    // eslint-disable-next-line es/no-object-getownpropertydescriptor -- safe
	    return uncurryThis(aCallable(Object.getOwnPropertyDescriptor(object, key)[method]));
	  } catch (error) { /* empty */ }
	};
	return functionUncurryThisAccessor;
}

var isPossiblePrototype;
var hasRequiredIsPossiblePrototype;

function requireIsPossiblePrototype () {
	if (hasRequiredIsPossiblePrototype) return isPossiblePrototype;
	hasRequiredIsPossiblePrototype = 1;
	var isObject = /*@__PURE__*/ requireIsObject();

	isPossiblePrototype = function (argument) {
	  return isObject(argument) || argument === null;
	};
	return isPossiblePrototype;
}

var aPossiblePrototype;
var hasRequiredAPossiblePrototype;

function requireAPossiblePrototype () {
	if (hasRequiredAPossiblePrototype) return aPossiblePrototype;
	hasRequiredAPossiblePrototype = 1;
	var isPossiblePrototype = /*@__PURE__*/ requireIsPossiblePrototype();

	var $String = String;
	var $TypeError = TypeError;

	aPossiblePrototype = function (argument) {
	  if (isPossiblePrototype(argument)) return argument;
	  throw new $TypeError("Can't set " + $String(argument) + ' as a prototype');
	};
	return aPossiblePrototype;
}

var objectSetPrototypeOf;
var hasRequiredObjectSetPrototypeOf;

function requireObjectSetPrototypeOf () {
	if (hasRequiredObjectSetPrototypeOf) return objectSetPrototypeOf;
	hasRequiredObjectSetPrototypeOf = 1;
	/* eslint-disable no-proto -- safe */
	var uncurryThisAccessor = /*@__PURE__*/ requireFunctionUncurryThisAccessor();
	var isObject = /*@__PURE__*/ requireIsObject();
	var requireObjectCoercible = /*@__PURE__*/ requireRequireObjectCoercible();
	var aPossiblePrototype = /*@__PURE__*/ requireAPossiblePrototype();

	// `Object.setPrototypeOf` method
	// https://tc39.es/ecma262/#sec-object.setprototypeof
	// Works with __proto__ only. Old v8 can't work with null proto objects.
	// eslint-disable-next-line es/no-object-setprototypeof -- safe
	objectSetPrototypeOf = Object.setPrototypeOf || ('__proto__' in {} ? function () {
	  var CORRECT_SETTER = false;
	  var test = {};
	  var setter;
	  try {
	    setter = uncurryThisAccessor(Object.prototype, '__proto__', 'set');
	    setter(test, []);
	    CORRECT_SETTER = test instanceof Array;
	  } catch (error) { /* empty */ }
	  return function setPrototypeOf(O, proto) {
	    requireObjectCoercible(O);
	    aPossiblePrototype(proto);
	    if (!isObject(O)) return O;
	    if (CORRECT_SETTER) setter(O, proto);
	    else O.__proto__ = proto;
	    return O;
	  };
	}() : undefined);
	return objectSetPrototypeOf;
}

var iteratorDefine;
var hasRequiredIteratorDefine;

function requireIteratorDefine () {
	if (hasRequiredIteratorDefine) return iteratorDefine;
	hasRequiredIteratorDefine = 1;
	var $ = /*@__PURE__*/ require_export();
	var call = /*@__PURE__*/ requireFunctionCall();
	var IS_PURE = /*@__PURE__*/ requireIsPure();
	var FunctionName = /*@__PURE__*/ requireFunctionName();
	var isCallable = /*@__PURE__*/ requireIsCallable();
	var createIteratorConstructor = /*@__PURE__*/ requireIteratorCreateConstructor();
	var getPrototypeOf = /*@__PURE__*/ requireObjectGetPrototypeOf();
	var setPrototypeOf = /*@__PURE__*/ requireObjectSetPrototypeOf();
	var setToStringTag = /*@__PURE__*/ requireSetToStringTag();
	var createNonEnumerableProperty = /*@__PURE__*/ requireCreateNonEnumerableProperty();
	var defineBuiltIn = /*@__PURE__*/ requireDefineBuiltIn();
	var wellKnownSymbol = /*@__PURE__*/ requireWellKnownSymbol();
	var Iterators = /*@__PURE__*/ requireIterators();
	var IteratorsCore = /*@__PURE__*/ requireIteratorsCore();

	var PROPER_FUNCTION_NAME = FunctionName.PROPER;
	var CONFIGURABLE_FUNCTION_NAME = FunctionName.CONFIGURABLE;
	var IteratorPrototype = IteratorsCore.IteratorPrototype;
	var BUGGY_SAFARI_ITERATORS = IteratorsCore.BUGGY_SAFARI_ITERATORS;
	var ITERATOR = wellKnownSymbol('iterator');
	var KEYS = 'keys';
	var VALUES = 'values';
	var ENTRIES = 'entries';

	var returnThis = function () { return this; };

	iteratorDefine = function (Iterable, NAME, IteratorConstructor, next, DEFAULT, IS_SET, FORCED) {
	  createIteratorConstructor(IteratorConstructor, NAME, next);

	  var getIterationMethod = function (KIND) {
	    if (KIND === DEFAULT && defaultIterator) return defaultIterator;
	    if (!BUGGY_SAFARI_ITERATORS && KIND && KIND in IterablePrototype) return IterablePrototype[KIND];

	    switch (KIND) {
	      case KEYS: return function keys() { return new IteratorConstructor(this, KIND); };
	      case VALUES: return function values() { return new IteratorConstructor(this, KIND); };
	      case ENTRIES: return function entries() { return new IteratorConstructor(this, KIND); };
	    }

	    return function () { return new IteratorConstructor(this); };
	  };

	  var TO_STRING_TAG = NAME + ' Iterator';
	  var INCORRECT_VALUES_NAME = false;
	  var IterablePrototype = Iterable.prototype;
	  var nativeIterator = IterablePrototype[ITERATOR]
	    || IterablePrototype['@@iterator']
	    || DEFAULT && IterablePrototype[DEFAULT];
	  var defaultIterator = !BUGGY_SAFARI_ITERATORS && nativeIterator || getIterationMethod(DEFAULT);
	  var anyNativeIterator = NAME === 'Array' ? IterablePrototype.entries || nativeIterator : nativeIterator;
	  var CurrentIteratorPrototype, methods, KEY;

	  // fix native
	  if (anyNativeIterator) {
	    CurrentIteratorPrototype = getPrototypeOf(anyNativeIterator.call(new Iterable()));
	    if (CurrentIteratorPrototype !== Object.prototype && CurrentIteratorPrototype.next) {
	      if (!IS_PURE && getPrototypeOf(CurrentIteratorPrototype) !== IteratorPrototype) {
	        if (setPrototypeOf) {
	          setPrototypeOf(CurrentIteratorPrototype, IteratorPrototype);
	        } else if (!isCallable(CurrentIteratorPrototype[ITERATOR])) {
	          defineBuiltIn(CurrentIteratorPrototype, ITERATOR, returnThis);
	        }
	      }
	      // Set @@toStringTag to native iterators
	      setToStringTag(CurrentIteratorPrototype, TO_STRING_TAG, true, true);
	      if (IS_PURE) Iterators[TO_STRING_TAG] = returnThis;
	    }
	  }

	  // fix Array.prototype.{ values, @@iterator }.name in V8 / FF
	  if (PROPER_FUNCTION_NAME && DEFAULT === VALUES && nativeIterator && nativeIterator.name !== VALUES) {
	    if (!IS_PURE && CONFIGURABLE_FUNCTION_NAME) {
	      createNonEnumerableProperty(IterablePrototype, 'name', VALUES);
	    } else {
	      INCORRECT_VALUES_NAME = true;
	      defaultIterator = function values() { return call(nativeIterator, this); };
	    }
	  }

	  // export additional methods
	  if (DEFAULT) {
	    methods = {
	      values: getIterationMethod(VALUES),
	      keys: IS_SET ? defaultIterator : getIterationMethod(KEYS),
	      entries: getIterationMethod(ENTRIES)
	    };
	    if (FORCED) for (KEY in methods) {
	      if (BUGGY_SAFARI_ITERATORS || INCORRECT_VALUES_NAME || !(KEY in IterablePrototype)) {
	        defineBuiltIn(IterablePrototype, KEY, methods[KEY]);
	      }
	    } else $({ target: NAME, proto: true, forced: BUGGY_SAFARI_ITERATORS || INCORRECT_VALUES_NAME }, methods);
	  }

	  // define iterator
	  if ((!IS_PURE || FORCED) && IterablePrototype[ITERATOR] !== defaultIterator) {
	    defineBuiltIn(IterablePrototype, ITERATOR, defaultIterator, { name: DEFAULT });
	  }
	  Iterators[NAME] = defaultIterator;

	  return methods;
	};
	return iteratorDefine;
}

var createIterResultObject;
var hasRequiredCreateIterResultObject;

function requireCreateIterResultObject () {
	if (hasRequiredCreateIterResultObject) return createIterResultObject;
	hasRequiredCreateIterResultObject = 1;
	// `CreateIterResultObject` abstract operation
	// https://tc39.es/ecma262/#sec-createiterresultobject
	createIterResultObject = function (value, done) {
	  return { value: value, done: done };
	};
	return createIterResultObject;
}

var es_array_iterator;
var hasRequiredEs_array_iterator;

function requireEs_array_iterator () {
	if (hasRequiredEs_array_iterator) return es_array_iterator;
	hasRequiredEs_array_iterator = 1;
	var toIndexedObject = /*@__PURE__*/ requireToIndexedObject();
	var addToUnscopables = /*@__PURE__*/ requireAddToUnscopables();
	var Iterators = /*@__PURE__*/ requireIterators();
	var InternalStateModule = /*@__PURE__*/ requireInternalState();
	var defineProperty = /*@__PURE__*/ requireObjectDefineProperty().f;
	var defineIterator = /*@__PURE__*/ requireIteratorDefine();
	var createIterResultObject = /*@__PURE__*/ requireCreateIterResultObject();
	var IS_PURE = /*@__PURE__*/ requireIsPure();
	var DESCRIPTORS = /*@__PURE__*/ requireDescriptors();

	var ARRAY_ITERATOR = 'Array Iterator';
	var setInternalState = InternalStateModule.set;
	var getInternalState = InternalStateModule.getterFor(ARRAY_ITERATOR);

	// `Array.prototype.entries` method
	// https://tc39.es/ecma262/#sec-array.prototype.entries
	// `Array.prototype.keys` method
	// https://tc39.es/ecma262/#sec-array.prototype.keys
	// `Array.prototype.values` method
	// https://tc39.es/ecma262/#sec-array.prototype.values
	// `Array.prototype[@@iterator]` method
	// https://tc39.es/ecma262/#sec-array.prototype-@@iterator
	// `CreateArrayIterator` internal method
	// https://tc39.es/ecma262/#sec-createarrayiterator
	es_array_iterator = defineIterator(Array, 'Array', function (iterated, kind) {
	  setInternalState(this, {
	    type: ARRAY_ITERATOR,
	    target: toIndexedObject(iterated), // target
	    index: 0,                          // next index
	    kind: kind                         // kind
	  });
	// `%ArrayIteratorPrototype%.next` method
	// https://tc39.es/ecma262/#sec-%arrayiteratorprototype%.next
	}, function () {
	  var state = getInternalState(this);
	  var target = state.target;
	  var index = state.index++;
	  if (!target || index >= target.length) {
	    state.target = null;
	    return createIterResultObject(undefined, true);
	  }
	  switch (state.kind) {
	    case 'keys': return createIterResultObject(index, false);
	    case 'values': return createIterResultObject(target[index], false);
	  } return createIterResultObject([index, target[index]], false);
	}, 'values');

	// argumentsList[@@iterator] is %ArrayProto_values%
	// https://tc39.es/ecma262/#sec-createunmappedargumentsobject
	// https://tc39.es/ecma262/#sec-createmappedargumentsobject
	var values = Iterators.Arguments = Iterators.Array;

	// https://tc39.es/ecma262/#sec-array.prototype-@@unscopables
	addToUnscopables('keys');
	addToUnscopables('values');
	addToUnscopables('entries');

	// V8 ~ Chrome 45- bug
	if (!IS_PURE && DESCRIPTORS && values.name !== 'values') try {
	  defineProperty(values, 'name', { value: 'values' });
	} catch (error) { /* empty */ }
	return es_array_iterator;
}

var domIterables;
var hasRequiredDomIterables;

function requireDomIterables () {
	if (hasRequiredDomIterables) return domIterables;
	hasRequiredDomIterables = 1;
	// iterable DOM collections
	// flag - `iterable` interface - 'entries', 'keys', 'values', 'forEach' methods
	domIterables = {
	  CSSRuleList: 0,
	  CSSStyleDeclaration: 0,
	  CSSValueList: 0,
	  ClientRectList: 0,
	  DOMRectList: 0,
	  DOMStringList: 0,
	  DOMTokenList: 1,
	  DataTransferItemList: 0,
	  FileList: 0,
	  HTMLAllCollection: 0,
	  HTMLCollection: 0,
	  HTMLFormElement: 0,
	  HTMLSelectElement: 0,
	  MediaList: 0,
	  MimeTypeArray: 0,
	  NamedNodeMap: 0,
	  NodeList: 1,
	  PaintRequestList: 0,
	  Plugin: 0,
	  PluginArray: 0,
	  SVGLengthList: 0,
	  SVGNumberList: 0,
	  SVGPathSegList: 0,
	  SVGPointList: 0,
	  SVGStringList: 0,
	  SVGTransformList: 0,
	  SourceBufferList: 0,
	  StyleSheetList: 0,
	  TextTrackCueList: 0,
	  TextTrackList: 0,
	  TouchList: 0
	};
	return domIterables;
}

var hasRequiredWeb_domCollections_iterator;

function requireWeb_domCollections_iterator () {
	if (hasRequiredWeb_domCollections_iterator) return web_domCollections_iterator;
	hasRequiredWeb_domCollections_iterator = 1;
	requireEs_array_iterator();
	var DOMIterables = /*@__PURE__*/ requireDomIterables();
	var globalThis = /*@__PURE__*/ requireGlobalThis();
	var setToStringTag = /*@__PURE__*/ requireSetToStringTag();
	var Iterators = /*@__PURE__*/ requireIterators();

	for (var COLLECTION_NAME in DOMIterables) {
	  setToStringTag(globalThis[COLLECTION_NAME], COLLECTION_NAME);
	  Iterators[COLLECTION_NAME] = Iterators.Array;
	}
	return web_domCollections_iterator;
}

var getBuiltInPrototypeMethod;
var hasRequiredGetBuiltInPrototypeMethod;

function requireGetBuiltInPrototypeMethod () {
	if (hasRequiredGetBuiltInPrototypeMethod) return getBuiltInPrototypeMethod;
	hasRequiredGetBuiltInPrototypeMethod = 1;
	var globalThis = /*@__PURE__*/ requireGlobalThis();
	var path = /*@__PURE__*/ requirePath();

	getBuiltInPrototypeMethod = function (CONSTRUCTOR, METHOD) {
	  var Namespace = path[CONSTRUCTOR + 'Prototype'];
	  var pureMethod = Namespace && Namespace[METHOD];
	  if (pureMethod) return pureMethod;
	  var NativeConstructor = globalThis[CONSTRUCTOR];
	  var NativePrototype = NativeConstructor && NativeConstructor.prototype;
	  return NativePrototype && NativePrototype[METHOD];
	};
	return getBuiltInPrototypeMethod;
}

var values$3;
var hasRequiredValues$3;

function requireValues$3 () {
	if (hasRequiredValues$3) return values$3;
	hasRequiredValues$3 = 1;
	requireEs_array_iterator();
	var getBuiltInPrototypeMethod = /*@__PURE__*/ requireGetBuiltInPrototypeMethod();

	values$3 = getBuiltInPrototypeMethod('Array', 'values');
	return values$3;
}

var values$2;
var hasRequiredValues$2;

function requireValues$2 () {
	if (hasRequiredValues$2) return values$2;
	hasRequiredValues$2 = 1;
	var parent = /*@__PURE__*/ requireValues$3();

	values$2 = parent;
	return values$2;
}

var values$1;
var hasRequiredValues$1;

function requireValues$1 () {
	if (hasRequiredValues$1) return values$1;
	hasRequiredValues$1 = 1;
	requireWeb_domCollections_iterator();
	var classof = /*@__PURE__*/ requireClassof();
	var hasOwn = /*@__PURE__*/ requireHasOwnProperty();
	var isPrototypeOf = /*@__PURE__*/ requireObjectIsPrototypeOf();
	var method = /*@__PURE__*/ requireValues$2();

	var ArrayPrototype = Array.prototype;

	var DOMIterables = {
	  DOMTokenList: true,
	  NodeList: true
	};

	values$1 = function (it) {
	  var own = it.values;
	  return it === ArrayPrototype || (isPrototypeOf(ArrayPrototype, it) && own === ArrayPrototype.values)
	    || hasOwn(DOMIterables, classof(it)) ? method : own;
	};
	return values$1;
}

var values;
var hasRequiredValues;

function requireValues () {
	if (hasRequiredValues) return values;
	hasRequiredValues = 1;
	values = /*@__PURE__*/ requireValues$1();
	return values;
}

var valuesExports = requireValues();
var _valuesInstanceProperty = /*@__PURE__*/getDefaultExportFromCjs(valuesExports);

var web_timers = {};

var web_setInterval = {};

var environment;
var hasRequiredEnvironment;

function requireEnvironment () {
	if (hasRequiredEnvironment) return environment;
	hasRequiredEnvironment = 1;
	/* global Bun, Deno -- detection */
	var globalThis = /*@__PURE__*/ requireGlobalThis();
	var userAgent = /*@__PURE__*/ requireEnvironmentUserAgent();
	var classof = /*@__PURE__*/ requireClassofRaw();

	var userAgentStartsWith = function (string) {
	  return userAgent.slice(0, string.length) === string;
	};

	environment = (function () {
	  if (userAgentStartsWith('Bun/')) return 'BUN';
	  if (userAgentStartsWith('Cloudflare-Workers')) return 'CLOUDFLARE';
	  if (userAgentStartsWith('Deno/')) return 'DENO';
	  if (userAgentStartsWith('Node.js/')) return 'NODE';
	  if (globalThis.Bun && typeof Bun.version == 'string') return 'BUN';
	  if (globalThis.Deno && typeof Deno.version == 'object') return 'DENO';
	  if (classof(globalThis.process) === 'process') return 'NODE';
	  if (globalThis.window && globalThis.document) return 'BROWSER';
	  return 'REST';
	})();
	return environment;
}

var arraySlice;
var hasRequiredArraySlice;

function requireArraySlice () {
	if (hasRequiredArraySlice) return arraySlice;
	hasRequiredArraySlice = 1;
	var uncurryThis = /*@__PURE__*/ requireFunctionUncurryThis();

	arraySlice = uncurryThis([].slice);
	return arraySlice;
}

var validateArgumentsLength;
var hasRequiredValidateArgumentsLength;

function requireValidateArgumentsLength () {
	if (hasRequiredValidateArgumentsLength) return validateArgumentsLength;
	hasRequiredValidateArgumentsLength = 1;
	var $TypeError = TypeError;

	validateArgumentsLength = function (passed, required) {
	  if (passed < required) throw new $TypeError('Not enough arguments');
	  return passed;
	};
	return validateArgumentsLength;
}

var schedulersFix;
var hasRequiredSchedulersFix;

function requireSchedulersFix () {
	if (hasRequiredSchedulersFix) return schedulersFix;
	hasRequiredSchedulersFix = 1;
	var globalThis = /*@__PURE__*/ requireGlobalThis();
	var apply = /*@__PURE__*/ requireFunctionApply();
	var isCallable = /*@__PURE__*/ requireIsCallable();
	var ENVIRONMENT = /*@__PURE__*/ requireEnvironment();
	var USER_AGENT = /*@__PURE__*/ requireEnvironmentUserAgent();
	var arraySlice = /*@__PURE__*/ requireArraySlice();
	var validateArgumentsLength = /*@__PURE__*/ requireValidateArgumentsLength();

	var Function = globalThis.Function;
	// dirty IE9- and Bun 0.3.0- checks
	var WRAP = /MSIE .\./.test(USER_AGENT) || ENVIRONMENT === 'BUN' && (function () {
	  var version = globalThis.Bun.version.split('.');
	  return version.length < 3 || version[0] === '0' && (version[1] < 3 || version[1] === '3' && version[2] === '0');
	})();

	// IE9- / Bun 0.3.0- setTimeout / setInterval / setImmediate additional parameters fix
	// https://html.spec.whatwg.org/multipage/timers-and-user-prompts.html#timers
	// https://github.com/oven-sh/bun/issues/1633
	schedulersFix = function (scheduler, hasTimeArg) {
	  var firstParamIndex = hasTimeArg ? 2 : 1;
	  return WRAP ? function (handler, timeout /* , ...arguments */) {
	    var boundArgs = validateArgumentsLength(arguments.length, 1) > firstParamIndex;
	    var fn = isCallable(handler) ? handler : Function(handler);
	    var params = boundArgs ? arraySlice(arguments, firstParamIndex) : [];
	    var callback = boundArgs ? function () {
	      apply(fn, this, params);
	    } : fn;
	    return hasTimeArg ? scheduler(callback, timeout) : scheduler(callback);
	  } : scheduler;
	};
	return schedulersFix;
}

var hasRequiredWeb_setInterval;

function requireWeb_setInterval () {
	if (hasRequiredWeb_setInterval) return web_setInterval;
	hasRequiredWeb_setInterval = 1;
	var $ = /*@__PURE__*/ require_export();
	var globalThis = /*@__PURE__*/ requireGlobalThis();
	var schedulersFix = /*@__PURE__*/ requireSchedulersFix();

	var setInterval = schedulersFix(globalThis.setInterval, true);

	// Bun / IE9- setInterval additional parameters fix
	// https://html.spec.whatwg.org/multipage/timers-and-user-prompts.html#dom-setinterval
	$({ global: true, bind: true, forced: globalThis.setInterval !== setInterval }, {
	  setInterval: setInterval
	});
	return web_setInterval;
}

var web_setTimeout = {};

var hasRequiredWeb_setTimeout;

function requireWeb_setTimeout () {
	if (hasRequiredWeb_setTimeout) return web_setTimeout;
	hasRequiredWeb_setTimeout = 1;
	var $ = /*@__PURE__*/ require_export();
	var globalThis = /*@__PURE__*/ requireGlobalThis();
	var schedulersFix = /*@__PURE__*/ requireSchedulersFix();

	var setTimeout = schedulersFix(globalThis.setTimeout, true);

	// Bun / IE9- setTimeout additional parameters fix
	// https://html.spec.whatwg.org/multipage/timers-and-user-prompts.html#dom-settimeout
	$({ global: true, bind: true, forced: globalThis.setTimeout !== setTimeout }, {
	  setTimeout: setTimeout
	});
	return web_setTimeout;
}

var hasRequiredWeb_timers;

function requireWeb_timers () {
	if (hasRequiredWeb_timers) return web_timers;
	hasRequiredWeb_timers = 1;
	// TODO: Remove this module from `core-js@4` since it's split to modules listed below
	requireWeb_setInterval();
	requireWeb_setTimeout();
	return web_timers;
}

var setTimeout$2;
var hasRequiredSetTimeout$1;

function requireSetTimeout$1 () {
	if (hasRequiredSetTimeout$1) return setTimeout$2;
	hasRequiredSetTimeout$1 = 1;
	requireWeb_timers();
	var path = /*@__PURE__*/ requirePath();

	setTimeout$2 = path.setTimeout;
	return setTimeout$2;
}

var setTimeout$1;
var hasRequiredSetTimeout;

function requireSetTimeout () {
	if (hasRequiredSetTimeout) return setTimeout$1;
	hasRequiredSetTimeout = 1;
	setTimeout$1 = /*@__PURE__*/ requireSetTimeout$1();
	return setTimeout$1;
}

var setTimeoutExports = requireSetTimeout();
var _setTimeout = /*@__PURE__*/getDefaultExportFromCjs(setTimeoutExports);

/**
 * @class Filter
 * @param {DataGroup} dataGroup the data group
 * @param {number}  column             The index of the column to be filtered
 * @param {Graph3d} graph              The graph
 */
function Filter(dataGroup, column, graph) {
  this.dataGroup = dataGroup;
  this.column = column;
  this.graph = graph; // the parent graph

  this.index = undefined;
  this.value = undefined;

  // read all distinct values and select the first one
  this.values = dataGroup.getDistinctValues(this.column);
  if (_valuesInstanceProperty(this).length > 0) {
    this.selectValue(0);
  }

  // create an array with the filtered datapoints. this will be loaded afterwards
  this.dataPoints = [];
  this.loaded = false;
  this.onLoadCallback = undefined;
  if (graph.animationPreload) {
    this.loaded = false;
    this.loadInBackground();
  } else {
    this.loaded = true;
  }
}

/**
 * Return the label
 * @returns {string} label
 */
Filter.prototype.isLoaded = function () {
  return this.loaded;
};

/**
 * Return the loaded progress
 * @returns {number} percentage between 0 and 100
 */
Filter.prototype.getLoadedProgress = function () {
  const len = _valuesInstanceProperty(this).length;
  let i = 0;
  while (this.dataPoints[i]) {
    i++;
  }
  return Math.round(i / len * 100);
};

/**
 * Return the label
 * @returns {string} label
 */
Filter.prototype.getLabel = function () {
  return this.graph.filterLabel;
};

/**
 * Return the columnIndex of the filter
 * @returns {number} columnIndex
 */
Filter.prototype.getColumn = function () {
  return this.column;
};

/**
 * Return the currently selected value. Returns undefined if there is no selection
 * @returns {*} value
 */
Filter.prototype.getSelectedValue = function () {
  if (this.index === undefined) return undefined;
  return _valuesInstanceProperty(this)[this.index];
};

/**
 * Retrieve all values of the filter
 * @returns {Array} values
 */
Filter.prototype.getValues = function () {
  return _valuesInstanceProperty(this);
};

/**
 * Retrieve one value of the filter
 * @param {number}  index
 * @returns {*} value
 */
Filter.prototype.getValue = function (index) {
  if (index >= _valuesInstanceProperty(this).length) throw new Error("Index out of range");
  return _valuesInstanceProperty(this)[index];
};

/**
 * Retrieve the (filtered) dataPoints for the currently selected filter index
 * @param {number} [index] (optional)
 * @returns {Array} dataPoints
 */
Filter.prototype._getDataPoints = function (index) {
  if (index === undefined) index = this.index;
  if (index === undefined) return [];
  let dataPoints;
  if (this.dataPoints[index]) {
    dataPoints = this.dataPoints[index];
  } else {
    const f = {};
    f.column = this.column;
    f.value = _valuesInstanceProperty(this)[index];
    const dataView = new DataView(this.dataGroup.getDataSet(), {
      filter: function (item) {
        return item[f.column] == f.value;
      }
    }).get();
    dataPoints = this.dataGroup._getDataPoints(dataView);
    this.dataPoints[index] = dataPoints;
  }
  return dataPoints;
};

/**
 * Set a callback function when the filter is fully loaded.
 * @param {Function} callback
 */
Filter.prototype.setOnLoadCallback = function (callback) {
  this.onLoadCallback = callback;
};

/**
 * Add a value to the list with available values for this filter
 * No double entries will be created.
 * @param {number} index
 */
Filter.prototype.selectValue = function (index) {
  if (index >= _valuesInstanceProperty(this).length) throw new Error("Index out of range");
  this.index = index;
  this.value = _valuesInstanceProperty(this)[index];
};

/**
 * Load all filtered rows in the background one by one
 * Start this method without providing an index!
 * @param {number} [index]
 */
Filter.prototype.loadInBackground = function (index) {
  if (index === undefined) index = 0;
  const frame = this.graph.frame;
  if (index < _valuesInstanceProperty(this).length) {
    // create a progress box
    if (frame.progress === undefined) {
      frame.progress = document.createElement("DIV");
      frame.progress.style.position = "absolute";
      frame.progress.style.color = "gray";
      frame.appendChild(frame.progress);
    }
    const progress = this.getLoadedProgress();
    frame.progress.innerHTML = "Loading animation... " + progress + "%";
    // TODO: this is no nice solution...
    frame.progress.style.bottom = 60 + "px"; // TODO: use height of slider
    frame.progress.style.left = 10 + "px";
    const me = this;
    _setTimeout(function () {
      me.loadInBackground(index + 1);
    }, 10);
    this.loaded = false;
  } else {
    this.loaded = true;

    // remove the progress box
    if (frame.progress !== undefined) {
      frame.removeChild(frame.progress);
      frame.progress = undefined;
    }
    if (this.onLoadCallback) this.onLoadCallback();
  }
};

var es_array_sort = {};

var deletePropertyOrThrow;
var hasRequiredDeletePropertyOrThrow;

function requireDeletePropertyOrThrow () {
	if (hasRequiredDeletePropertyOrThrow) return deletePropertyOrThrow;
	hasRequiredDeletePropertyOrThrow = 1;
	var tryToString = /*@__PURE__*/ requireTryToString();

	var $TypeError = TypeError;

	deletePropertyOrThrow = function (O, P) {
	  if (!delete O[P]) throw new $TypeError('Cannot delete property ' + tryToString(P) + ' of ' + tryToString(O));
	};
	return deletePropertyOrThrow;
}

var toString;
var hasRequiredToString;

function requireToString () {
	if (hasRequiredToString) return toString;
	hasRequiredToString = 1;
	var classof = /*@__PURE__*/ requireClassof();

	var $String = String;

	toString = function (argument) {
	  if (classof(argument) === 'Symbol') throw new TypeError('Cannot convert a Symbol value to a string');
	  return $String(argument);
	};
	return toString;
}

var arraySort;
var hasRequiredArraySort;

function requireArraySort () {
	if (hasRequiredArraySort) return arraySort;
	hasRequiredArraySort = 1;
	var arraySlice = /*@__PURE__*/ requireArraySlice();

	var floor = Math.floor;

	var sort = function (array, comparefn) {
	  var length = array.length;

	  if (length < 8) {
	    // insertion sort
	    var i = 1;
	    var element, j;

	    while (i < length) {
	      j = i;
	      element = array[i];
	      while (j && comparefn(array[j - 1], element) > 0) {
	        array[j] = array[--j];
	      }
	      if (j !== i++) array[j] = element;
	    }
	  } else {
	    // merge sort
	    var middle = floor(length / 2);
	    var left = sort(arraySlice(array, 0, middle), comparefn);
	    var right = sort(arraySlice(array, middle), comparefn);
	    var llength = left.length;
	    var rlength = right.length;
	    var lindex = 0;
	    var rindex = 0;

	    while (lindex < llength || rindex < rlength) {
	      array[lindex + rindex] = (lindex < llength && rindex < rlength)
	        ? comparefn(left[lindex], right[rindex]) <= 0 ? left[lindex++] : right[rindex++]
	        : lindex < llength ? left[lindex++] : right[rindex++];
	    }
	  }

	  return array;
	};

	arraySort = sort;
	return arraySort;
}

var arrayMethodIsStrict;
var hasRequiredArrayMethodIsStrict;

function requireArrayMethodIsStrict () {
	if (hasRequiredArrayMethodIsStrict) return arrayMethodIsStrict;
	hasRequiredArrayMethodIsStrict = 1;
	var fails = /*@__PURE__*/ requireFails();

	arrayMethodIsStrict = function (METHOD_NAME, argument) {
	  var method = [][METHOD_NAME];
	  return !!method && fails(function () {
	    // eslint-disable-next-line no-useless-call -- required for testing
	    method.call(null, argument || function () { return 1; }, 1);
	  });
	};
	return arrayMethodIsStrict;
}

var environmentFfVersion;
var hasRequiredEnvironmentFfVersion;

function requireEnvironmentFfVersion () {
	if (hasRequiredEnvironmentFfVersion) return environmentFfVersion;
	hasRequiredEnvironmentFfVersion = 1;
	var userAgent = /*@__PURE__*/ requireEnvironmentUserAgent();

	var firefox = userAgent.match(/firefox\/(\d+)/i);

	environmentFfVersion = !!firefox && +firefox[1];
	return environmentFfVersion;
}

var environmentIsIeOrEdge;
var hasRequiredEnvironmentIsIeOrEdge;

function requireEnvironmentIsIeOrEdge () {
	if (hasRequiredEnvironmentIsIeOrEdge) return environmentIsIeOrEdge;
	hasRequiredEnvironmentIsIeOrEdge = 1;
	var UA = /*@__PURE__*/ requireEnvironmentUserAgent();

	environmentIsIeOrEdge = /MSIE|Trident/.test(UA);
	return environmentIsIeOrEdge;
}

var environmentWebkitVersion;
var hasRequiredEnvironmentWebkitVersion;

function requireEnvironmentWebkitVersion () {
	if (hasRequiredEnvironmentWebkitVersion) return environmentWebkitVersion;
	hasRequiredEnvironmentWebkitVersion = 1;
	var userAgent = /*@__PURE__*/ requireEnvironmentUserAgent();

	var webkit = userAgent.match(/AppleWebKit\/(\d+)\./);

	environmentWebkitVersion = !!webkit && +webkit[1];
	return environmentWebkitVersion;
}

var hasRequiredEs_array_sort;

function requireEs_array_sort () {
	if (hasRequiredEs_array_sort) return es_array_sort;
	hasRequiredEs_array_sort = 1;
	var $ = /*@__PURE__*/ require_export();
	var uncurryThis = /*@__PURE__*/ requireFunctionUncurryThis();
	var aCallable = /*@__PURE__*/ requireACallable();
	var toObject = /*@__PURE__*/ requireToObject();
	var lengthOfArrayLike = /*@__PURE__*/ requireLengthOfArrayLike();
	var deletePropertyOrThrow = /*@__PURE__*/ requireDeletePropertyOrThrow();
	var toString = /*@__PURE__*/ requireToString();
	var fails = /*@__PURE__*/ requireFails();
	var internalSort = /*@__PURE__*/ requireArraySort();
	var arrayMethodIsStrict = /*@__PURE__*/ requireArrayMethodIsStrict();
	var FF = /*@__PURE__*/ requireEnvironmentFfVersion();
	var IE_OR_EDGE = /*@__PURE__*/ requireEnvironmentIsIeOrEdge();
	var V8 = /*@__PURE__*/ requireEnvironmentV8Version();
	var WEBKIT = /*@__PURE__*/ requireEnvironmentWebkitVersion();

	var test = [];
	var nativeSort = uncurryThis(test.sort);
	var push = uncurryThis(test.push);

	// IE8-
	var FAILS_ON_UNDEFINED = fails(function () {
	  test.sort(undefined);
	});
	// V8 bug
	var FAILS_ON_NULL = fails(function () {
	  test.sort(null);
	});
	// Old WebKit
	var STRICT_METHOD = arrayMethodIsStrict('sort');

	var STABLE_SORT = !fails(function () {
	  // feature detection can be too slow, so check engines versions
	  if (V8) return V8 < 70;
	  if (FF && FF > 3) return;
	  if (IE_OR_EDGE) return true;
	  if (WEBKIT) return WEBKIT < 603;

	  var result = '';
	  var code, chr, value, index;

	  // generate an array with more 512 elements (Chakra and old V8 fails only in this case)
	  for (code = 65; code < 76; code++) {
	    chr = String.fromCharCode(code);

	    switch (code) {
	      case 66: case 69: case 70: case 72: value = 3; break;
	      case 68: case 71: value = 4; break;
	      default: value = 2;
	    }

	    for (index = 0; index < 47; index++) {
	      test.push({ k: chr + index, v: value });
	    }
	  }

	  test.sort(function (a, b) { return b.v - a.v; });

	  for (index = 0; index < test.length; index++) {
	    chr = test[index].k.charAt(0);
	    if (result.charAt(result.length - 1) !== chr) result += chr;
	  }

	  return result !== 'DGBEFHACIJK';
	});

	var FORCED = FAILS_ON_UNDEFINED || !FAILS_ON_NULL || !STRICT_METHOD || !STABLE_SORT;

	var getSortCompare = function (comparefn) {
	  return function (x, y) {
	    if (y === undefined) return -1;
	    if (x === undefined) return 1;
	    if (comparefn !== undefined) return +comparefn(x, y) || 0;
	    var xString = toString(x);
	    var yString = toString(y);
	    return xString === yString ? 0 : xString > yString ? 1 : -1;
	  };
	};

	// `Array.prototype.sort` method
	// https://tc39.es/ecma262/#sec-array.prototype.sort
	$({ target: 'Array', proto: true, forced: FORCED }, {
	  sort: function sort(comparefn) {
	    if (comparefn !== undefined) aCallable(comparefn);

	    var array = toObject(this);

	    if (STABLE_SORT) return comparefn === undefined ? nativeSort(array) : nativeSort(array, comparefn);

	    var items = [];
	    var arrayLength = lengthOfArrayLike(array);
	    var itemsLength, index;

	    for (index = 0; index < arrayLength; index++) {
	      if (index in array) push(items, array[index]);
	    }

	    internalSort(items, getSortCompare(comparefn));

	    itemsLength = lengthOfArrayLike(items);
	    index = 0;

	    while (index < itemsLength) array[index] = items[index++];
	    while (index < arrayLength) deletePropertyOrThrow(array, index++);

	    return array;
	  }
	});
	return es_array_sort;
}

var sort$3;
var hasRequiredSort$3;

function requireSort$3 () {
	if (hasRequiredSort$3) return sort$3;
	hasRequiredSort$3 = 1;
	requireEs_array_sort();
	var getBuiltInPrototypeMethod = /*@__PURE__*/ requireGetBuiltInPrototypeMethod();

	sort$3 = getBuiltInPrototypeMethod('Array', 'sort');
	return sort$3;
}

var sort$2;
var hasRequiredSort$2;

function requireSort$2 () {
	if (hasRequiredSort$2) return sort$2;
	hasRequiredSort$2 = 1;
	var isPrototypeOf = /*@__PURE__*/ requireObjectIsPrototypeOf();
	var method = /*@__PURE__*/ requireSort$3();

	var ArrayPrototype = Array.prototype;

	sort$2 = function (it) {
	  var own = it.sort;
	  return it === ArrayPrototype || (isPrototypeOf(ArrayPrototype, it) && own === ArrayPrototype.sort) ? method : own;
	};
	return sort$2;
}

var sort$1;
var hasRequiredSort$1;

function requireSort$1 () {
	if (hasRequiredSort$1) return sort$1;
	hasRequiredSort$1 = 1;
	var parent = /*@__PURE__*/ requireSort$2();

	sort$1 = parent;
	return sort$1;
}

var sort;
var hasRequiredSort;

function requireSort () {
	if (hasRequiredSort) return sort;
	hasRequiredSort = 1;
	sort = /*@__PURE__*/ requireSort$1();
	return sort;
}

var sortExports = requireSort();
var _sortInstanceProperty = /*@__PURE__*/getDefaultExportFromCjs(sortExports);

var es_array_indexOf = {};

var hasRequiredEs_array_indexOf;

function requireEs_array_indexOf () {
	if (hasRequiredEs_array_indexOf) return es_array_indexOf;
	hasRequiredEs_array_indexOf = 1;
	/* eslint-disable es/no-array-prototype-indexof -- required for testing */
	var $ = /*@__PURE__*/ require_export();
	var uncurryThis = /*@__PURE__*/ requireFunctionUncurryThisClause();
	var $indexOf = /*@__PURE__*/ requireArrayIncludes().indexOf;
	var arrayMethodIsStrict = /*@__PURE__*/ requireArrayMethodIsStrict();

	var nativeIndexOf = uncurryThis([].indexOf);

	var NEGATIVE_ZERO = !!nativeIndexOf && 1 / nativeIndexOf([1], 1, -0) < 0;
	var FORCED = NEGATIVE_ZERO || !arrayMethodIsStrict('indexOf');

	// `Array.prototype.indexOf` method
	// https://tc39.es/ecma262/#sec-array.prototype.indexof
	$({ target: 'Array', proto: true, forced: FORCED }, {
	  indexOf: function indexOf(searchElement /* , fromIndex = 0 */) {
	    var fromIndex = arguments.length > 1 ? arguments[1] : undefined;
	    return NEGATIVE_ZERO
	      // convert -0 to +0
	      ? nativeIndexOf(this, searchElement, fromIndex) || 0
	      : $indexOf(this, searchElement, fromIndex);
	  }
	});
	return es_array_indexOf;
}

var indexOf$3;
var hasRequiredIndexOf$3;

function requireIndexOf$3 () {
	if (hasRequiredIndexOf$3) return indexOf$3;
	hasRequiredIndexOf$3 = 1;
	requireEs_array_indexOf();
	var getBuiltInPrototypeMethod = /*@__PURE__*/ requireGetBuiltInPrototypeMethod();

	indexOf$3 = getBuiltInPrototypeMethod('Array', 'indexOf');
	return indexOf$3;
}

var indexOf$2;
var hasRequiredIndexOf$2;

function requireIndexOf$2 () {
	if (hasRequiredIndexOf$2) return indexOf$2;
	hasRequiredIndexOf$2 = 1;
	var isPrototypeOf = /*@__PURE__*/ requireObjectIsPrototypeOf();
	var method = /*@__PURE__*/ requireIndexOf$3();

	var ArrayPrototype = Array.prototype;

	indexOf$2 = function (it) {
	  var own = it.indexOf;
	  return it === ArrayPrototype || (isPrototypeOf(ArrayPrototype, it) && own === ArrayPrototype.indexOf) ? method : own;
	};
	return indexOf$2;
}

var indexOf$1;
var hasRequiredIndexOf$1;

function requireIndexOf$1 () {
	if (hasRequiredIndexOf$1) return indexOf$1;
	hasRequiredIndexOf$1 = 1;
	var parent = /*@__PURE__*/ requireIndexOf$2();

	indexOf$1 = parent;
	return indexOf$1;
}

var indexOf;
var hasRequiredIndexOf;

function requireIndexOf () {
	if (hasRequiredIndexOf) return indexOf;
	hasRequiredIndexOf = 1;
	indexOf = /*@__PURE__*/ requireIndexOf$1();
	return indexOf;
}

var indexOfExports = requireIndexOf();
var _indexOfInstanceProperty = /*@__PURE__*/getDefaultExportFromCjs(indexOfExports);

var es_array_filter = {};

var isArray$3;
var hasRequiredIsArray$3;

function requireIsArray$3 () {
	if (hasRequiredIsArray$3) return isArray$3;
	hasRequiredIsArray$3 = 1;
	var classof = /*@__PURE__*/ requireClassofRaw();

	// `IsArray` abstract operation
	// https://tc39.es/ecma262/#sec-isarray
	// eslint-disable-next-line es/no-array-isarray -- safe
	isArray$3 = Array.isArray || function isArray(argument) {
	  return classof(argument) === 'Array';
	};
	return isArray$3;
}

var inspectSource;
var hasRequiredInspectSource;

function requireInspectSource () {
	if (hasRequiredInspectSource) return inspectSource;
	hasRequiredInspectSource = 1;
	var uncurryThis = /*@__PURE__*/ requireFunctionUncurryThis();
	var isCallable = /*@__PURE__*/ requireIsCallable();
	var store = /*@__PURE__*/ requireSharedStore();

	var functionToString = uncurryThis(Function.toString);

	// this helper broken in `core-js@3.4.1-3.4.4`, so we can't use `shared` helper
	if (!isCallable(store.inspectSource)) {
	  store.inspectSource = function (it) {
	    return functionToString(it);
	  };
	}

	inspectSource = store.inspectSource;
	return inspectSource;
}

var isConstructor;
var hasRequiredIsConstructor;

function requireIsConstructor () {
	if (hasRequiredIsConstructor) return isConstructor;
	hasRequiredIsConstructor = 1;
	var uncurryThis = /*@__PURE__*/ requireFunctionUncurryThis();
	var fails = /*@__PURE__*/ requireFails();
	var isCallable = /*@__PURE__*/ requireIsCallable();
	var classof = /*@__PURE__*/ requireClassof();
	var getBuiltIn = /*@__PURE__*/ requireGetBuiltIn();
	var inspectSource = /*@__PURE__*/ requireInspectSource();

	var noop = function () { /* empty */ };
	var construct = getBuiltIn('Reflect', 'construct');
	var constructorRegExp = /^\s*(?:class|function)\b/;
	var exec = uncurryThis(constructorRegExp.exec);
	var INCORRECT_TO_STRING = !constructorRegExp.test(noop);

	var isConstructorModern = function isConstructor(argument) {
	  if (!isCallable(argument)) return false;
	  try {
	    construct(noop, [], argument);
	    return true;
	  } catch (error) {
	    return false;
	  }
	};

	var isConstructorLegacy = function isConstructor(argument) {
	  if (!isCallable(argument)) return false;
	  switch (classof(argument)) {
	    case 'AsyncFunction':
	    case 'GeneratorFunction':
	    case 'AsyncGeneratorFunction': return false;
	  }
	  try {
	    // we can't check .prototype since constructors produced by .bind haven't it
	    // `Function#toString` throws on some built-it function in some legacy engines
	    // (for example, `DOMQuad` and similar in FF41-)
	    return INCORRECT_TO_STRING || !!exec(constructorRegExp, inspectSource(argument));
	  } catch (error) {
	    return true;
	  }
	};

	isConstructorLegacy.sham = true;

	// `IsConstructor` abstract operation
	// https://tc39.es/ecma262/#sec-isconstructor
	isConstructor = !construct || fails(function () {
	  var called;
	  return isConstructorModern(isConstructorModern.call)
	    || !isConstructorModern(Object)
	    || !isConstructorModern(function () { called = true; })
	    || called;
	}) ? isConstructorLegacy : isConstructorModern;
	return isConstructor;
}

var arraySpeciesConstructor;
var hasRequiredArraySpeciesConstructor;

function requireArraySpeciesConstructor () {
	if (hasRequiredArraySpeciesConstructor) return arraySpeciesConstructor;
	hasRequiredArraySpeciesConstructor = 1;
	var isArray = /*@__PURE__*/ requireIsArray$3();
	var isConstructor = /*@__PURE__*/ requireIsConstructor();
	var isObject = /*@__PURE__*/ requireIsObject();
	var wellKnownSymbol = /*@__PURE__*/ requireWellKnownSymbol();

	var SPECIES = wellKnownSymbol('species');
	var $Array = Array;

	// a part of `ArraySpeciesCreate` abstract operation
	// https://tc39.es/ecma262/#sec-arrayspeciescreate
	arraySpeciesConstructor = function (originalArray) {
	  var C;
	  if (isArray(originalArray)) {
	    C = originalArray.constructor;
	    // cross-realm fallback
	    if (isConstructor(C) && (C === $Array || isArray(C.prototype))) C = undefined;
	    else if (isObject(C)) {
	      C = C[SPECIES];
	      if (C === null) C = undefined;
	    }
	  } return C === undefined ? $Array : C;
	};
	return arraySpeciesConstructor;
}

var arraySpeciesCreate;
var hasRequiredArraySpeciesCreate;

function requireArraySpeciesCreate () {
	if (hasRequiredArraySpeciesCreate) return arraySpeciesCreate;
	hasRequiredArraySpeciesCreate = 1;
	var arraySpeciesConstructor = /*@__PURE__*/ requireArraySpeciesConstructor();

	// `ArraySpeciesCreate` abstract operation
	// https://tc39.es/ecma262/#sec-arrayspeciescreate
	arraySpeciesCreate = function (originalArray, length) {
	  return new (arraySpeciesConstructor(originalArray))(length === 0 ? 0 : length);
	};
	return arraySpeciesCreate;
}

var createProperty;
var hasRequiredCreateProperty;

function requireCreateProperty () {
	if (hasRequiredCreateProperty) return createProperty;
	hasRequiredCreateProperty = 1;
	var DESCRIPTORS = /*@__PURE__*/ requireDescriptors();
	var definePropertyModule = /*@__PURE__*/ requireObjectDefineProperty();
	var createPropertyDescriptor = /*@__PURE__*/ requireCreatePropertyDescriptor();

	createProperty = function (object, key, value) {
	  if (DESCRIPTORS) definePropertyModule.f(object, key, createPropertyDescriptor(0, value));
	  else object[key] = value;
	};
	return createProperty;
}

var arrayIteration;
var hasRequiredArrayIteration;

function requireArrayIteration () {
	if (hasRequiredArrayIteration) return arrayIteration;
	hasRequiredArrayIteration = 1;
	var bind = /*@__PURE__*/ requireFunctionBindContext();
	var IndexedObject = /*@__PURE__*/ requireIndexedObject();
	var toObject = /*@__PURE__*/ requireToObject();
	var lengthOfArrayLike = /*@__PURE__*/ requireLengthOfArrayLike();
	var arraySpeciesCreate = /*@__PURE__*/ requireArraySpeciesCreate();
	var createProperty = /*@__PURE__*/ requireCreateProperty();

	// `Array.prototype.{ forEach, map, filter, some, every, find, findIndex, filterReject }` methods implementation
	var createMethod = function (TYPE) {
	  var IS_MAP = TYPE === 1;
	  var IS_FILTER = TYPE === 2;
	  var IS_SOME = TYPE === 3;
	  var IS_EVERY = TYPE === 4;
	  var IS_FIND_INDEX = TYPE === 6;
	  var IS_FILTER_REJECT = TYPE === 7;
	  var NO_HOLES = TYPE === 5 || IS_FIND_INDEX;
	  return function ($this, callbackfn, that) {
	    var O = toObject($this);
	    var self = IndexedObject(O);
	    var length = lengthOfArrayLike(self);
	    var boundFunction = bind(callbackfn, that);
	    var index = 0;
	    var resIndex = 0;
	    var target = IS_MAP ? arraySpeciesCreate($this, length) : IS_FILTER || IS_FILTER_REJECT ? arraySpeciesCreate($this, 0) : undefined;
	    var value, result;
	    for (;length > index; index++) if (NO_HOLES || index in self) {
	      value = self[index];
	      result = boundFunction(value, index, O);
	      if (TYPE) {
	        if (IS_MAP) createProperty(target, index, result);    // map
	        else if (result) switch (TYPE) {
	          case 3: return true;                                // some
	          case 5: return value;                               // find
	          case 6: return index;                               // findIndex
	          case 2: createProperty(target, resIndex++, value);  // filter
	        } else switch (TYPE) {
	          case 4: return false;                               // every
	          case 7: createProperty(target, resIndex++, value);  // filterReject
	        }
	      }
	    }
	    return IS_FIND_INDEX ? -1 : IS_SOME || IS_EVERY ? IS_EVERY : target;
	  };
	};

	arrayIteration = {
	  // `Array.prototype.forEach` method
	  // https://tc39.es/ecma262/#sec-array.prototype.foreach
	  forEach: createMethod(0),
	  // `Array.prototype.map` method
	  // https://tc39.es/ecma262/#sec-array.prototype.map
	  map: createMethod(1),
	  // `Array.prototype.filter` method
	  // https://tc39.es/ecma262/#sec-array.prototype.filter
	  filter: createMethod(2),
	  // `Array.prototype.some` method
	  // https://tc39.es/ecma262/#sec-array.prototype.some
	  some: createMethod(3),
	  // `Array.prototype.every` method
	  // https://tc39.es/ecma262/#sec-array.prototype.every
	  every: createMethod(4),
	  // `Array.prototype.find` method
	  // https://tc39.es/ecma262/#sec-array.prototype.find
	  find: createMethod(5),
	  // `Array.prototype.findIndex` method
	  // https://tc39.es/ecma262/#sec-array.prototype.findIndex
	  findIndex: createMethod(6),
	  // `Array.prototype.filterReject` method
	  // https://github.com/tc39/proposal-array-filtering
	  filterReject: createMethod(7)
	};
	return arrayIteration;
}

var arrayMethodHasSpeciesSupport;
var hasRequiredArrayMethodHasSpeciesSupport;

function requireArrayMethodHasSpeciesSupport () {
	if (hasRequiredArrayMethodHasSpeciesSupport) return arrayMethodHasSpeciesSupport;
	hasRequiredArrayMethodHasSpeciesSupport = 1;
	var fails = /*@__PURE__*/ requireFails();
	var wellKnownSymbol = /*@__PURE__*/ requireWellKnownSymbol();
	var V8_VERSION = /*@__PURE__*/ requireEnvironmentV8Version();

	var SPECIES = wellKnownSymbol('species');

	arrayMethodHasSpeciesSupport = function (METHOD_NAME) {
	  // We can't use this feature detection in V8 since it causes
	  // deoptimization and serious performance degradation
	  // https://github.com/zloirock/core-js/issues/677
	  return V8_VERSION >= 51 || !fails(function () {
	    var array = [];
	    var constructor = array.constructor = {};
	    constructor[SPECIES] = function () {
	      return { foo: 1 };
	    };
	    return array[METHOD_NAME](Boolean).foo !== 1;
	  });
	};
	return arrayMethodHasSpeciesSupport;
}

var hasRequiredEs_array_filter;

function requireEs_array_filter () {
	if (hasRequiredEs_array_filter) return es_array_filter;
	hasRequiredEs_array_filter = 1;
	var $ = /*@__PURE__*/ require_export();
	var $filter = /*@__PURE__*/ requireArrayIteration().filter;
	var arrayMethodHasSpeciesSupport = /*@__PURE__*/ requireArrayMethodHasSpeciesSupport();

	var HAS_SPECIES_SUPPORT = arrayMethodHasSpeciesSupport('filter');

	// `Array.prototype.filter` method
	// https://tc39.es/ecma262/#sec-array.prototype.filter
	// with adding support of @@species
	$({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT }, {
	  filter: function filter(callbackfn /* , thisArg */) {
	    return $filter(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
	  }
	});
	return es_array_filter;
}

var filter$3;
var hasRequiredFilter$3;

function requireFilter$3 () {
	if (hasRequiredFilter$3) return filter$3;
	hasRequiredFilter$3 = 1;
	requireEs_array_filter();
	var getBuiltInPrototypeMethod = /*@__PURE__*/ requireGetBuiltInPrototypeMethod();

	filter$3 = getBuiltInPrototypeMethod('Array', 'filter');
	return filter$3;
}

var filter$2;
var hasRequiredFilter$2;

function requireFilter$2 () {
	if (hasRequiredFilter$2) return filter$2;
	hasRequiredFilter$2 = 1;
	var isPrototypeOf = /*@__PURE__*/ requireObjectIsPrototypeOf();
	var method = /*@__PURE__*/ requireFilter$3();

	var ArrayPrototype = Array.prototype;

	filter$2 = function (it) {
	  var own = it.filter;
	  return it === ArrayPrototype || (isPrototypeOf(ArrayPrototype, it) && own === ArrayPrototype.filter) ? method : own;
	};
	return filter$2;
}

var filter$1;
var hasRequiredFilter$1;

function requireFilter$1 () {
	if (hasRequiredFilter$1) return filter$1;
	hasRequiredFilter$1 = 1;
	var parent = /*@__PURE__*/ requireFilter$2();

	filter$1 = parent;
	return filter$1;
}

var filter;
var hasRequiredFilter;

function requireFilter () {
	if (hasRequiredFilter) return filter;
	hasRequiredFilter = 1;
	filter = /*@__PURE__*/ requireFilter$1();
	return filter;
}

var filterExports = requireFilter();
var _filterInstanceProperty = /*@__PURE__*/getDefaultExportFromCjs(filterExports);

var es_parseFloat = {};

var whitespaces;
var hasRequiredWhitespaces;

function requireWhitespaces () {
	if (hasRequiredWhitespaces) return whitespaces;
	hasRequiredWhitespaces = 1;
	// a string of all valid unicode whitespaces
	whitespaces = '\u0009\u000A\u000B\u000C\u000D\u0020\u00A0\u1680\u2000\u2001\u2002' +
	  '\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028\u2029\uFEFF';
	return whitespaces;
}

var stringTrim;
var hasRequiredStringTrim;

function requireStringTrim () {
	if (hasRequiredStringTrim) return stringTrim;
	hasRequiredStringTrim = 1;
	var uncurryThis = /*@__PURE__*/ requireFunctionUncurryThis();
	var requireObjectCoercible = /*@__PURE__*/ requireRequireObjectCoercible();
	var toString = /*@__PURE__*/ requireToString();
	var whitespaces = /*@__PURE__*/ requireWhitespaces();

	var replace = uncurryThis(''.replace);
	var ltrim = RegExp('^[' + whitespaces + ']+');
	var rtrim = RegExp('(^|[^' + whitespaces + '])[' + whitespaces + ']+$');

	// `String.prototype.{ trim, trimStart, trimEnd, trimLeft, trimRight }` methods implementation
	var createMethod = function (TYPE) {
	  return function ($this) {
	    var string = toString(requireObjectCoercible($this));
	    if (TYPE & 1) string = replace(string, ltrim, '');
	    if (TYPE & 2) string = replace(string, rtrim, '$1');
	    return string;
	  };
	};

	stringTrim = {
	  // `String.prototype.{ trimLeft, trimStart }` methods
	  // https://tc39.es/ecma262/#sec-string.prototype.trimstart
	  start: createMethod(1),
	  // `String.prototype.{ trimRight, trimEnd }` methods
	  // https://tc39.es/ecma262/#sec-string.prototype.trimend
	  end: createMethod(2),
	  // `String.prototype.trim` method
	  // https://tc39.es/ecma262/#sec-string.prototype.trim
	  trim: createMethod(3)
	};
	return stringTrim;
}

var numberParseFloat;
var hasRequiredNumberParseFloat;

function requireNumberParseFloat () {
	if (hasRequiredNumberParseFloat) return numberParseFloat;
	hasRequiredNumberParseFloat = 1;
	var globalThis = /*@__PURE__*/ requireGlobalThis();
	var fails = /*@__PURE__*/ requireFails();
	var uncurryThis = /*@__PURE__*/ requireFunctionUncurryThis();
	var toString = /*@__PURE__*/ requireToString();
	var trim = /*@__PURE__*/ requireStringTrim().trim;
	var whitespaces = /*@__PURE__*/ requireWhitespaces();

	var charAt = uncurryThis(''.charAt);
	var $parseFloat = globalThis.parseFloat;
	var Symbol = globalThis.Symbol;
	var ITERATOR = Symbol && Symbol.iterator;
	var FORCED = 1 / $parseFloat(whitespaces + '-0') !== -Infinity
	  // MS Edge 18- broken with boxed symbols
	  || (ITERATOR && !fails(function () { $parseFloat(Object(ITERATOR)); }));

	// `parseFloat` method
	// https://tc39.es/ecma262/#sec-parsefloat-string
	numberParseFloat = FORCED ? function parseFloat(string) {
	  var trimmedString = trim(toString(string));
	  var result = $parseFloat(trimmedString);
	  return result === 0 && charAt(trimmedString, 0) === '-' ? -0 : result;
	} : $parseFloat;
	return numberParseFloat;
}

var hasRequiredEs_parseFloat;

function requireEs_parseFloat () {
	if (hasRequiredEs_parseFloat) return es_parseFloat;
	hasRequiredEs_parseFloat = 1;
	var $ = /*@__PURE__*/ require_export();
	var $parseFloat = /*@__PURE__*/ requireNumberParseFloat();

	// `parseFloat` method
	// https://tc39.es/ecma262/#sec-parsefloat-string
	$({ global: true, forced: parseFloat !== $parseFloat }, {
	  parseFloat: $parseFloat
	});
	return es_parseFloat;
}

var _parseFloat$3;
var hasRequired_parseFloat$2;

function require_parseFloat$2 () {
	if (hasRequired_parseFloat$2) return _parseFloat$3;
	hasRequired_parseFloat$2 = 1;
	requireEs_parseFloat();
	var path = /*@__PURE__*/ requirePath();

	_parseFloat$3 = path.parseFloat;
	return _parseFloat$3;
}

var _parseFloat$2;
var hasRequired_parseFloat$1;

function require_parseFloat$1 () {
	if (hasRequired_parseFloat$1) return _parseFloat$2;
	hasRequired_parseFloat$1 = 1;
	var parent = /*@__PURE__*/ require_parseFloat$2();

	_parseFloat$2 = parent;
	return _parseFloat$2;
}

var _parseFloat$1;
var hasRequired_parseFloat;

function require_parseFloat () {
	if (hasRequired_parseFloat) return _parseFloat$1;
	hasRequired_parseFloat = 1;
	_parseFloat$1 = /*@__PURE__*/ require_parseFloat$1();
	return _parseFloat$1;
}

var _parseFloatExports = require_parseFloat();
var _parseFloat = /*@__PURE__*/getDefaultExportFromCjs(_parseFloatExports);

var es_array_fill = {};

var arrayFill;
var hasRequiredArrayFill;

function requireArrayFill () {
	if (hasRequiredArrayFill) return arrayFill;
	hasRequiredArrayFill = 1;
	var toObject = /*@__PURE__*/ requireToObject();
	var toAbsoluteIndex = /*@__PURE__*/ requireToAbsoluteIndex();
	var lengthOfArrayLike = /*@__PURE__*/ requireLengthOfArrayLike();

	// `Array.prototype.fill` method implementation
	// https://tc39.es/ecma262/#sec-array.prototype.fill
	// eslint-disable-next-line es/no-array-prototype-fill -- fallback included
	arrayFill = [].fill || function fill(value /* , start = 0, end = @length */) {
	  var O = toObject(this);
	  var length = lengthOfArrayLike(O);
	  var argumentsLength = arguments.length;
	  var index = toAbsoluteIndex(argumentsLength > 1 ? arguments[1] : undefined, length);
	  var end = argumentsLength > 2 ? arguments[2] : undefined;
	  var endPos = end === undefined ? length : toAbsoluteIndex(end, length);
	  while (endPos > index) O[index++] = value;
	  return O;
	};
	return arrayFill;
}

var hasRequiredEs_array_fill;

function requireEs_array_fill () {
	if (hasRequiredEs_array_fill) return es_array_fill;
	hasRequiredEs_array_fill = 1;
	var $ = /*@__PURE__*/ require_export();
	var fill = /*@__PURE__*/ requireArrayFill();
	var addToUnscopables = /*@__PURE__*/ requireAddToUnscopables();

	// `Array.prototype.fill` method
	// https://tc39.es/ecma262/#sec-array.prototype.fill
	$({ target: 'Array', proto: true }, {
	  fill: fill
	});

	// https://tc39.es/ecma262/#sec-array.prototype-@@unscopables
	addToUnscopables('fill');
	return es_array_fill;
}

var fill$3;
var hasRequiredFill$3;

function requireFill$3 () {
	if (hasRequiredFill$3) return fill$3;
	hasRequiredFill$3 = 1;
	requireEs_array_fill();
	var getBuiltInPrototypeMethod = /*@__PURE__*/ requireGetBuiltInPrototypeMethod();

	fill$3 = getBuiltInPrototypeMethod('Array', 'fill');
	return fill$3;
}

var fill$2;
var hasRequiredFill$2;

function requireFill$2 () {
	if (hasRequiredFill$2) return fill$2;
	hasRequiredFill$2 = 1;
	var isPrototypeOf = /*@__PURE__*/ requireObjectIsPrototypeOf();
	var method = /*@__PURE__*/ requireFill$3();

	var ArrayPrototype = Array.prototype;

	fill$2 = function (it) {
	  var own = it.fill;
	  return it === ArrayPrototype || (isPrototypeOf(ArrayPrototype, it) && own === ArrayPrototype.fill) ? method : own;
	};
	return fill$2;
}

var fill$1;
var hasRequiredFill$1;

function requireFill$1 () {
	if (hasRequiredFill$1) return fill$1;
	hasRequiredFill$1 = 1;
	var parent = /*@__PURE__*/ requireFill$2();

	fill$1 = parent;
	return fill$1;
}

var fill;
var hasRequiredFill;

function requireFill () {
	if (hasRequiredFill) return fill;
	hasRequiredFill = 1;
	fill = /*@__PURE__*/ requireFill$1();
	return fill;
}

var fillExports = requireFill();
var _fillInstanceProperty = /*@__PURE__*/getDefaultExportFromCjs(fillExports);

var es_array_forEach = {};

var arrayForEach;
var hasRequiredArrayForEach;

function requireArrayForEach () {
	if (hasRequiredArrayForEach) return arrayForEach;
	hasRequiredArrayForEach = 1;
	var $forEach = /*@__PURE__*/ requireArrayIteration().forEach;
	var arrayMethodIsStrict = /*@__PURE__*/ requireArrayMethodIsStrict();

	var STRICT_METHOD = arrayMethodIsStrict('forEach');

	// `Array.prototype.forEach` method implementation
	// https://tc39.es/ecma262/#sec-array.prototype.foreach
	arrayForEach = !STRICT_METHOD ? function forEach(callbackfn /* , thisArg */) {
	  return $forEach(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
	// eslint-disable-next-line es/no-array-prototype-foreach -- safe
	} : [].forEach;
	return arrayForEach;
}

var hasRequiredEs_array_forEach;

function requireEs_array_forEach () {
	if (hasRequiredEs_array_forEach) return es_array_forEach;
	hasRequiredEs_array_forEach = 1;
	var $ = /*@__PURE__*/ require_export();
	var forEach = /*@__PURE__*/ requireArrayForEach();

	// `Array.prototype.forEach` method
	// https://tc39.es/ecma262/#sec-array.prototype.foreach
	// eslint-disable-next-line es/no-array-prototype-foreach -- safe
	$({ target: 'Array', proto: true, forced: [].forEach !== forEach }, {
	  forEach: forEach
	});
	return es_array_forEach;
}

var forEach$3;
var hasRequiredForEach$3;

function requireForEach$3 () {
	if (hasRequiredForEach$3) return forEach$3;
	hasRequiredForEach$3 = 1;
	requireEs_array_forEach();
	var getBuiltInPrototypeMethod = /*@__PURE__*/ requireGetBuiltInPrototypeMethod();

	forEach$3 = getBuiltInPrototypeMethod('Array', 'forEach');
	return forEach$3;
}

var forEach$2;
var hasRequiredForEach$2;

function requireForEach$2 () {
	if (hasRequiredForEach$2) return forEach$2;
	hasRequiredForEach$2 = 1;
	var parent = /*@__PURE__*/ requireForEach$3();

	forEach$2 = parent;
	return forEach$2;
}

var forEach$1;
var hasRequiredForEach$1;

function requireForEach$1 () {
	if (hasRequiredForEach$1) return forEach$1;
	hasRequiredForEach$1 = 1;
	var classof = /*@__PURE__*/ requireClassof();
	var hasOwn = /*@__PURE__*/ requireHasOwnProperty();
	var isPrototypeOf = /*@__PURE__*/ requireObjectIsPrototypeOf();
	var method = /*@__PURE__*/ requireForEach$2();

	var ArrayPrototype = Array.prototype;

	var DOMIterables = {
	  DOMTokenList: true,
	  NodeList: true
	};

	forEach$1 = function (it) {
	  var own = it.forEach;
	  return it === ArrayPrototype || (isPrototypeOf(ArrayPrototype, it) && own === ArrayPrototype.forEach)
	    || hasOwn(DOMIterables, classof(it)) ? method : own;
	};
	return forEach$1;
}

var forEach;
var hasRequiredForEach;

function requireForEach () {
	if (hasRequiredForEach) return forEach;
	hasRequiredForEach = 1;
	forEach = /*@__PURE__*/ requireForEach$1();
	return forEach;
}

var forEachExports = requireForEach();
var _forEachInstanceProperty = /*@__PURE__*/getDefaultExportFromCjs(forEachExports);

var es_array_isArray = {};

var hasRequiredEs_array_isArray;

function requireEs_array_isArray () {
	if (hasRequiredEs_array_isArray) return es_array_isArray;
	hasRequiredEs_array_isArray = 1;
	var $ = /*@__PURE__*/ require_export();
	var isArray = /*@__PURE__*/ requireIsArray$3();

	// `Array.isArray` method
	// https://tc39.es/ecma262/#sec-array.isarray
	$({ target: 'Array', stat: true }, {
	  isArray: isArray
	});
	return es_array_isArray;
}

var isArray$2;
var hasRequiredIsArray$2;

function requireIsArray$2 () {
	if (hasRequiredIsArray$2) return isArray$2;
	hasRequiredIsArray$2 = 1;
	requireEs_array_isArray();
	var path = /*@__PURE__*/ requirePath();

	isArray$2 = path.Array.isArray;
	return isArray$2;
}

var isArray$1;
var hasRequiredIsArray$1;

function requireIsArray$1 () {
	if (hasRequiredIsArray$1) return isArray$1;
	hasRequiredIsArray$1 = 1;
	var parent = /*@__PURE__*/ requireIsArray$2();

	isArray$1 = parent;
	return isArray$1;
}

var isArray;
var hasRequiredIsArray;

function requireIsArray () {
	if (hasRequiredIsArray) return isArray;
	hasRequiredIsArray = 1;
	isArray = /*@__PURE__*/ requireIsArray$1();
	return isArray;
}

var isArrayExports = requireIsArray();
var _Array$isArray = /*@__PURE__*/getDefaultExportFromCjs(isArrayExports);

var es_number_isNan = {};

var hasRequiredEs_number_isNan;

function requireEs_number_isNan () {
	if (hasRequiredEs_number_isNan) return es_number_isNan;
	hasRequiredEs_number_isNan = 1;
	var $ = /*@__PURE__*/ require_export();

	// `Number.isNaN` method
	// https://tc39.es/ecma262/#sec-number.isnan
	$({ target: 'Number', stat: true }, {
	  isNaN: function isNaN(number) {
	    // eslint-disable-next-line no-self-compare -- NaN check
	    return number !== number;
	  }
	});
	return es_number_isNan;
}

var isNan$2;
var hasRequiredIsNan$2;

function requireIsNan$2 () {
	if (hasRequiredIsNan$2) return isNan$2;
	hasRequiredIsNan$2 = 1;
	requireEs_number_isNan();
	var path = /*@__PURE__*/ requirePath();

	isNan$2 = path.Number.isNaN;
	return isNan$2;
}

var isNan$1;
var hasRequiredIsNan$1;

function requireIsNan$1 () {
	if (hasRequiredIsNan$1) return isNan$1;
	hasRequiredIsNan$1 = 1;
	var parent = /*@__PURE__*/ requireIsNan$2();

	isNan$1 = parent;
	return isNan$1;
}

var isNan;
var hasRequiredIsNan;

function requireIsNan () {
	if (hasRequiredIsNan) return isNan;
	hasRequiredIsNan = 1;
	isNan = /*@__PURE__*/ requireIsNan$1();
	return isNan;
}

var isNanExports = requireIsNan();
var _Number$isNaN = /*@__PURE__*/getDefaultExportFromCjs(isNanExports);

var es_array_concat = {};

var doesNotExceedSafeInteger;
var hasRequiredDoesNotExceedSafeInteger;

function requireDoesNotExceedSafeInteger () {
	if (hasRequiredDoesNotExceedSafeInteger) return doesNotExceedSafeInteger;
	hasRequiredDoesNotExceedSafeInteger = 1;
	var $TypeError = TypeError;
	var MAX_SAFE_INTEGER = 0x1FFFFFFFFFFFFF; // 2 ** 53 - 1 == 9007199254740991

	doesNotExceedSafeInteger = function (it) {
	  if (it > MAX_SAFE_INTEGER) throw new $TypeError('Maximum allowed index exceeded');
	  return it;
	};
	return doesNotExceedSafeInteger;
}

var arraySetLength;
var hasRequiredArraySetLength;

function requireArraySetLength () {
	if (hasRequiredArraySetLength) return arraySetLength;
	hasRequiredArraySetLength = 1;
	var DESCRIPTORS = /*@__PURE__*/ requireDescriptors();
	var isArray = /*@__PURE__*/ requireIsArray$3();

	var $TypeError = TypeError;
	// eslint-disable-next-line es/no-object-getownpropertydescriptor -- safe
	var getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;

	// Safari < 13 does not throw an error in this case
	var SILENT_ON_NON_WRITABLE_LENGTH_SET = DESCRIPTORS && !function () {
	  // makes no sense without proper strict mode support
	  if (this !== undefined) return true;
	  try {
	    // eslint-disable-next-line es/no-object-defineproperty -- safe
	    Object.defineProperty([], 'length', { writable: false }).length = 1;
	  } catch (error) {
	    return error instanceof TypeError;
	  }
	}();

	arraySetLength = SILENT_ON_NON_WRITABLE_LENGTH_SET ? function (O, length) {
	  if (isArray(O) && !getOwnPropertyDescriptor(O, 'length').writable) {
	    throw new $TypeError('Cannot set read only .length');
	  } return O.length = length;
	} : function (O, length) {
	  return O.length = length;
	};
	return arraySetLength;
}

var hasRequiredEs_array_concat;

function requireEs_array_concat () {
	if (hasRequiredEs_array_concat) return es_array_concat;
	hasRequiredEs_array_concat = 1;
	var $ = /*@__PURE__*/ require_export();
	var fails = /*@__PURE__*/ requireFails();
	var isArray = /*@__PURE__*/ requireIsArray$3();
	var isObject = /*@__PURE__*/ requireIsObject();
	var toObject = /*@__PURE__*/ requireToObject();
	var lengthOfArrayLike = /*@__PURE__*/ requireLengthOfArrayLike();
	var doesNotExceedSafeInteger = /*@__PURE__*/ requireDoesNotExceedSafeInteger();
	var createProperty = /*@__PURE__*/ requireCreateProperty();
	var setArrayLength = /*@__PURE__*/ requireArraySetLength();
	var arraySpeciesCreate = /*@__PURE__*/ requireArraySpeciesCreate();
	var arrayMethodHasSpeciesSupport = /*@__PURE__*/ requireArrayMethodHasSpeciesSupport();
	var wellKnownSymbol = /*@__PURE__*/ requireWellKnownSymbol();
	var V8_VERSION = /*@__PURE__*/ requireEnvironmentV8Version();

	var IS_CONCAT_SPREADABLE = wellKnownSymbol('isConcatSpreadable');

	// We can't use this feature detection in V8 since it causes
	// deoptimization and serious performance degradation
	// https://github.com/zloirock/core-js/issues/679
	var IS_CONCAT_SPREADABLE_SUPPORT = V8_VERSION >= 51 || !fails(function () {
	  var array = [];
	  array[IS_CONCAT_SPREADABLE] = false;
	  return array.concat()[0] !== array;
	});

	var isConcatSpreadable = function (O) {
	  if (!isObject(O)) return false;
	  var spreadable = O[IS_CONCAT_SPREADABLE];
	  return spreadable !== undefined ? !!spreadable : isArray(O);
	};

	var FORCED = !IS_CONCAT_SPREADABLE_SUPPORT || !arrayMethodHasSpeciesSupport('concat');

	// `Array.prototype.concat` method
	// https://tc39.es/ecma262/#sec-array.prototype.concat
	// with adding support of @@isConcatSpreadable and @@species
	$({ target: 'Array', proto: true, arity: 1, forced: FORCED }, {
	  // eslint-disable-next-line no-unused-vars -- required for `.length`
	  concat: function concat(arg) {
	    var O = toObject(this);
	    var A = arraySpeciesCreate(O, 0);
	    var n = 0;
	    var i, k, length, len, E;
	    for (i = -1, length = arguments.length; i < length; i++) {
	      E = i === -1 ? O : arguments[i];
	      if (isConcatSpreadable(E)) {
	        len = lengthOfArrayLike(E);
	        doesNotExceedSafeInteger(n + len);
	        for (k = 0; k < len; k++, n++) if (k in E) createProperty(A, n, E[k]);
	      } else {
	        doesNotExceedSafeInteger(n + 1);
	        createProperty(A, n++, E);
	      }
	    }
	    setArrayLength(A, n);
	    return A;
	  }
	});
	return es_array_concat;
}

var concat$3;
var hasRequiredConcat$3;

function requireConcat$3 () {
	if (hasRequiredConcat$3) return concat$3;
	hasRequiredConcat$3 = 1;
	requireEs_array_concat();
	var getBuiltInPrototypeMethod = /*@__PURE__*/ requireGetBuiltInPrototypeMethod();

	concat$3 = getBuiltInPrototypeMethod('Array', 'concat');
	return concat$3;
}

var concat$2;
var hasRequiredConcat$2;

function requireConcat$2 () {
	if (hasRequiredConcat$2) return concat$2;
	hasRequiredConcat$2 = 1;
	var isPrototypeOf = /*@__PURE__*/ requireObjectIsPrototypeOf();
	var method = /*@__PURE__*/ requireConcat$3();

	var ArrayPrototype = Array.prototype;

	concat$2 = function (it) {
	  var own = it.concat;
	  return it === ArrayPrototype || (isPrototypeOf(ArrayPrototype, it) && own === ArrayPrototype.concat) ? method : own;
	};
	return concat$2;
}

var concat$1;
var hasRequiredConcat$1;

function requireConcat$1 () {
	if (hasRequiredConcat$1) return concat$1;
	hasRequiredConcat$1 = 1;
	var parent = /*@__PURE__*/ requireConcat$2();

	concat$1 = parent;
	return concat$1;
}

var concat;
var hasRequiredConcat;

function requireConcat () {
	if (hasRequiredConcat) return concat;
	hasRequiredConcat = 1;
	concat = /*@__PURE__*/ requireConcat$1();
	return concat;
}

var concatExports = requireConcat();
var _concatInstanceProperty = /*@__PURE__*/getDefaultExportFromCjs(concatExports);

var es_object_assign = {};

var objectGetOwnPropertySymbols = {};

var hasRequiredObjectGetOwnPropertySymbols;

function requireObjectGetOwnPropertySymbols () {
	if (hasRequiredObjectGetOwnPropertySymbols) return objectGetOwnPropertySymbols;
	hasRequiredObjectGetOwnPropertySymbols = 1;
	// eslint-disable-next-line es/no-object-getownpropertysymbols -- safe
	objectGetOwnPropertySymbols.f = Object.getOwnPropertySymbols;
	return objectGetOwnPropertySymbols;
}

var objectAssign;
var hasRequiredObjectAssign;

function requireObjectAssign () {
	if (hasRequiredObjectAssign) return objectAssign;
	hasRequiredObjectAssign = 1;
	var DESCRIPTORS = /*@__PURE__*/ requireDescriptors();
	var uncurryThis = /*@__PURE__*/ requireFunctionUncurryThis();
	var call = /*@__PURE__*/ requireFunctionCall();
	var fails = /*@__PURE__*/ requireFails();
	var objectKeys = /*@__PURE__*/ requireObjectKeys();
	var getOwnPropertySymbolsModule = /*@__PURE__*/ requireObjectGetOwnPropertySymbols();
	var propertyIsEnumerableModule = /*@__PURE__*/ requireObjectPropertyIsEnumerable();
	var toObject = /*@__PURE__*/ requireToObject();
	var IndexedObject = /*@__PURE__*/ requireIndexedObject();

	// eslint-disable-next-line es/no-object-assign -- safe
	var $assign = Object.assign;
	// eslint-disable-next-line es/no-object-defineproperty -- required for testing
	var defineProperty = Object.defineProperty;
	var concat = uncurryThis([].concat);

	// `Object.assign` method
	// https://tc39.es/ecma262/#sec-object.assign
	objectAssign = !$assign || fails(function () {
	  // should have correct order of operations (Edge bug)
	  if (DESCRIPTORS && $assign({ b: 1 }, $assign(defineProperty({}, 'a', {
	    enumerable: true,
	    get: function () {
	      defineProperty(this, 'b', {
	        value: 3,
	        enumerable: false
	      });
	    }
	  }), { b: 2 })).b !== 1) return true;
	  // should work with symbols and should have deterministic property order (V8 bug)
	  var A = {};
	  var B = {};
	  // eslint-disable-next-line es/no-symbol -- safe
	  var symbol = Symbol('assign detection');
	  var alphabet = 'abcdefghijklmnopqrst';
	  A[symbol] = 7;
	  // eslint-disable-next-line es/no-array-prototype-foreach -- safe
	  alphabet.split('').forEach(function (chr) { B[chr] = chr; });
	  return $assign({}, A)[symbol] !== 7 || objectKeys($assign({}, B)).join('') !== alphabet;
	}) ? function assign(target, source) { // eslint-disable-line no-unused-vars -- required for `.length`
	  var T = toObject(target);
	  var argumentsLength = arguments.length;
	  var index = 1;
	  var getOwnPropertySymbols = getOwnPropertySymbolsModule.f;
	  var propertyIsEnumerable = propertyIsEnumerableModule.f;
	  while (argumentsLength > index) {
	    var S = IndexedObject(arguments[index++]);
	    var keys = getOwnPropertySymbols ? concat(objectKeys(S), getOwnPropertySymbols(S)) : objectKeys(S);
	    var length = keys.length;
	    var j = 0;
	    var key;
	    while (length > j) {
	      key = keys[j++];
	      if (!DESCRIPTORS || call(propertyIsEnumerable, S, key)) T[key] = S[key];
	    }
	  } return T;
	} : $assign;
	return objectAssign;
}

var hasRequiredEs_object_assign;

function requireEs_object_assign () {
	if (hasRequiredEs_object_assign) return es_object_assign;
	hasRequiredEs_object_assign = 1;
	var $ = /*@__PURE__*/ require_export();
	var assign = /*@__PURE__*/ requireObjectAssign();

	// `Object.assign` method
	// https://tc39.es/ecma262/#sec-object.assign
	// eslint-disable-next-line es/no-object-assign -- required for testing
	$({ target: 'Object', stat: true, arity: 2, forced: Object.assign !== assign }, {
	  assign: assign
	});
	return es_object_assign;
}

var assign$4;
var hasRequiredAssign$2;

function requireAssign$2 () {
	if (hasRequiredAssign$2) return assign$4;
	hasRequiredAssign$2 = 1;
	requireEs_object_assign();
	var path = /*@__PURE__*/ requirePath();

	assign$4 = path.Object.assign;
	return assign$4;
}

var assign$3;
var hasRequiredAssign$1;

function requireAssign$1 () {
	if (hasRequiredAssign$1) return assign$3;
	hasRequiredAssign$1 = 1;
	var parent = /*@__PURE__*/ requireAssign$2();

	assign$3 = parent;
	return assign$3;
}

var assign$2;
var hasRequiredAssign;

function requireAssign () {
	if (hasRequiredAssign) return assign$2;
	hasRequiredAssign = 1;
	assign$2 = /*@__PURE__*/ requireAssign$1();
	return assign$2;
}

var assignExports = requireAssign();
var _Object$assign = /*@__PURE__*/getDefaultExportFromCjs(assignExports);

var componentEmitter = {exports: {}};

var hasRequiredComponentEmitter;

function requireComponentEmitter () {
	if (hasRequiredComponentEmitter) return componentEmitter.exports;
	hasRequiredComponentEmitter = 1;
	(function (module) {
		function Emitter(object) {
			if (object) {
				return mixin(object);
			}

			this._callbacks = new Map();
		}

		function mixin(object) {
			Object.assign(object, Emitter.prototype);
			object._callbacks = new Map();
			return object;
		}

		Emitter.prototype.on = function (event, listener) {
			const callbacks = this._callbacks.get(event) ?? [];
			callbacks.push(listener);
			this._callbacks.set(event, callbacks);
			return this;
		};

		Emitter.prototype.once = function (event, listener) {
			const on = (...arguments_) => {
				this.off(event, on);
				listener.apply(this, arguments_);
			};

			on.fn = listener;
			this.on(event, on);
			return this;
		};

		Emitter.prototype.off = function (event, listener) {
			if (event === undefined && listener === undefined) {
				this._callbacks.clear();
				return this;
			}

			if (listener === undefined) {
				this._callbacks.delete(event);
				return this;
			}

			const callbacks = this._callbacks.get(event);
			if (callbacks) {
				for (const [index, callback] of callbacks.entries()) {
					if (callback === listener || callback.fn === listener) {
						callbacks.splice(index, 1);
						break;
					}
				}

				if (callbacks.length === 0) {
					this._callbacks.delete(event);
				} else {
					this._callbacks.set(event, callbacks);
				}
			}

			return this;
		};

		Emitter.prototype.emit = function (event, ...arguments_) {
			const callbacks = this._callbacks.get(event);
			if (callbacks) {
				// Create a copy of the callbacks array to avoid issues if it's modified during iteration
				const callbacksCopy = [...callbacks];

				for (const callback of callbacksCopy) {
					callback.apply(this, arguments_);
				}
			}

			return this;
		};

		Emitter.prototype.listeners = function (event) {
			return this._callbacks.get(event) ?? [];
		};

		Emitter.prototype.listenerCount = function (event) {
			if (event) {
				return this.listeners(event).length;
			}

			let totalCount = 0;
			for (const callbacks of this._callbacks.values()) {
				totalCount += callbacks.length;
			}

			return totalCount;
		};

		Emitter.prototype.hasListeners = function (event) {
			return this.listenerCount(event) > 0;
		};

		// Aliases
		Emitter.prototype.addEventListener = Emitter.prototype.on;
		Emitter.prototype.removeListener = Emitter.prototype.off;
		Emitter.prototype.removeEventListener = Emitter.prototype.off;
		Emitter.prototype.removeAllListeners = Emitter.prototype.off;

		{
			module.exports = Emitter;
		} 
	} (componentEmitter));
	return componentEmitter.exports;
}

var componentEmitterExports = /*@__PURE__*/ requireComponentEmitter();
var Emitter = /*@__PURE__*/getDefaultExportFromCjs(componentEmitterExports);

var es_symbol = {};

var es_symbol_constructor = {};

var objectGetOwnPropertyNames = {};

var hasRequiredObjectGetOwnPropertyNames;

function requireObjectGetOwnPropertyNames () {
	if (hasRequiredObjectGetOwnPropertyNames) return objectGetOwnPropertyNames;
	hasRequiredObjectGetOwnPropertyNames = 1;
	var internalObjectKeys = /*@__PURE__*/ requireObjectKeysInternal();
	var enumBugKeys = /*@__PURE__*/ requireEnumBugKeys();

	var hiddenKeys = enumBugKeys.concat('length', 'prototype');

	// `Object.getOwnPropertyNames` method
	// https://tc39.es/ecma262/#sec-object.getownpropertynames
	// eslint-disable-next-line es/no-object-getownpropertynames -- safe
	objectGetOwnPropertyNames.f = Object.getOwnPropertyNames || function getOwnPropertyNames(O) {
	  return internalObjectKeys(O, hiddenKeys);
	};
	return objectGetOwnPropertyNames;
}

var objectGetOwnPropertyNamesExternal = {};

var hasRequiredObjectGetOwnPropertyNamesExternal;

function requireObjectGetOwnPropertyNamesExternal () {
	if (hasRequiredObjectGetOwnPropertyNamesExternal) return objectGetOwnPropertyNamesExternal;
	hasRequiredObjectGetOwnPropertyNamesExternal = 1;
	/* eslint-disable es/no-object-getownpropertynames -- safe */
	var classof = /*@__PURE__*/ requireClassofRaw();
	var toIndexedObject = /*@__PURE__*/ requireToIndexedObject();
	var $getOwnPropertyNames = /*@__PURE__*/ requireObjectGetOwnPropertyNames().f;
	var arraySlice = /*@__PURE__*/ requireArraySlice();

	var windowNames = typeof window == 'object' && window && Object.getOwnPropertyNames
	  ? Object.getOwnPropertyNames(window) : [];

	var getWindowNames = function (it) {
	  try {
	    return $getOwnPropertyNames(it);
	  } catch (error) {
	    return arraySlice(windowNames);
	  }
	};

	// fallback for IE11 buggy Object.getOwnPropertyNames with iframe and window
	objectGetOwnPropertyNamesExternal.f = function getOwnPropertyNames(it) {
	  return windowNames && classof(it) === 'Window'
	    ? getWindowNames(it)
	    : $getOwnPropertyNames(toIndexedObject(it));
	};
	return objectGetOwnPropertyNamesExternal;
}

var defineBuiltInAccessor;
var hasRequiredDefineBuiltInAccessor;

function requireDefineBuiltInAccessor () {
	if (hasRequiredDefineBuiltInAccessor) return defineBuiltInAccessor;
	hasRequiredDefineBuiltInAccessor = 1;
	var defineProperty = /*@__PURE__*/ requireObjectDefineProperty();

	defineBuiltInAccessor = function (target, name, descriptor) {
	  return defineProperty.f(target, name, descriptor);
	};
	return defineBuiltInAccessor;
}

var wellKnownSymbolWrapped = {};

var hasRequiredWellKnownSymbolWrapped;

function requireWellKnownSymbolWrapped () {
	if (hasRequiredWellKnownSymbolWrapped) return wellKnownSymbolWrapped;
	hasRequiredWellKnownSymbolWrapped = 1;
	var wellKnownSymbol = /*@__PURE__*/ requireWellKnownSymbol();

	wellKnownSymbolWrapped.f = wellKnownSymbol;
	return wellKnownSymbolWrapped;
}

var wellKnownSymbolDefine;
var hasRequiredWellKnownSymbolDefine;

function requireWellKnownSymbolDefine () {
	if (hasRequiredWellKnownSymbolDefine) return wellKnownSymbolDefine;
	hasRequiredWellKnownSymbolDefine = 1;
	var path = /*@__PURE__*/ requirePath();
	var hasOwn = /*@__PURE__*/ requireHasOwnProperty();
	var wrappedWellKnownSymbolModule = /*@__PURE__*/ requireWellKnownSymbolWrapped();
	var defineProperty = /*@__PURE__*/ requireObjectDefineProperty().f;

	wellKnownSymbolDefine = function (NAME) {
	  var Symbol = path.Symbol || (path.Symbol = {});
	  if (!hasOwn(Symbol, NAME)) defineProperty(Symbol, NAME, {
	    value: wrappedWellKnownSymbolModule.f(NAME)
	  });
	};
	return wellKnownSymbolDefine;
}

var symbolDefineToPrimitive;
var hasRequiredSymbolDefineToPrimitive;

function requireSymbolDefineToPrimitive () {
	if (hasRequiredSymbolDefineToPrimitive) return symbolDefineToPrimitive;
	hasRequiredSymbolDefineToPrimitive = 1;
	var call = /*@__PURE__*/ requireFunctionCall();
	var getBuiltIn = /*@__PURE__*/ requireGetBuiltIn();
	var wellKnownSymbol = /*@__PURE__*/ requireWellKnownSymbol();
	var defineBuiltIn = /*@__PURE__*/ requireDefineBuiltIn();

	symbolDefineToPrimitive = function () {
	  var Symbol = getBuiltIn('Symbol');
	  var SymbolPrototype = Symbol && Symbol.prototype;
	  var valueOf = SymbolPrototype && SymbolPrototype.valueOf;
	  var TO_PRIMITIVE = wellKnownSymbol('toPrimitive');

	  if (SymbolPrototype && !SymbolPrototype[TO_PRIMITIVE]) {
	    // `Symbol.prototype[@@toPrimitive]` method
	    // https://tc39.es/ecma262/#sec-symbol.prototype-@@toprimitive
	    // eslint-disable-next-line no-unused-vars -- required for .length
	    defineBuiltIn(SymbolPrototype, TO_PRIMITIVE, function (hint) {
	      return call(valueOf, this);
	    }, { arity: 1 });
	  }
	};
	return symbolDefineToPrimitive;
}

var hasRequiredEs_symbol_constructor;

function requireEs_symbol_constructor () {
	if (hasRequiredEs_symbol_constructor) return es_symbol_constructor;
	hasRequiredEs_symbol_constructor = 1;
	var $ = /*@__PURE__*/ require_export();
	var globalThis = /*@__PURE__*/ requireGlobalThis();
	var call = /*@__PURE__*/ requireFunctionCall();
	var uncurryThis = /*@__PURE__*/ requireFunctionUncurryThis();
	var IS_PURE = /*@__PURE__*/ requireIsPure();
	var DESCRIPTORS = /*@__PURE__*/ requireDescriptors();
	var NATIVE_SYMBOL = /*@__PURE__*/ requireSymbolConstructorDetection();
	var fails = /*@__PURE__*/ requireFails();
	var hasOwn = /*@__PURE__*/ requireHasOwnProperty();
	var isPrototypeOf = /*@__PURE__*/ requireObjectIsPrototypeOf();
	var anObject = /*@__PURE__*/ requireAnObject();
	var toIndexedObject = /*@__PURE__*/ requireToIndexedObject();
	var toPropertyKey = /*@__PURE__*/ requireToPropertyKey();
	var $toString = /*@__PURE__*/ requireToString();
	var createPropertyDescriptor = /*@__PURE__*/ requireCreatePropertyDescriptor();
	var nativeObjectCreate = /*@__PURE__*/ requireObjectCreate();
	var objectKeys = /*@__PURE__*/ requireObjectKeys();
	var getOwnPropertyNamesModule = /*@__PURE__*/ requireObjectGetOwnPropertyNames();
	var getOwnPropertyNamesExternal = /*@__PURE__*/ requireObjectGetOwnPropertyNamesExternal();
	var getOwnPropertySymbolsModule = /*@__PURE__*/ requireObjectGetOwnPropertySymbols();
	var getOwnPropertyDescriptorModule = /*@__PURE__*/ requireObjectGetOwnPropertyDescriptor();
	var definePropertyModule = /*@__PURE__*/ requireObjectDefineProperty();
	var definePropertiesModule = /*@__PURE__*/ requireObjectDefineProperties();
	var propertyIsEnumerableModule = /*@__PURE__*/ requireObjectPropertyIsEnumerable();
	var defineBuiltIn = /*@__PURE__*/ requireDefineBuiltIn();
	var defineBuiltInAccessor = /*@__PURE__*/ requireDefineBuiltInAccessor();
	var shared = /*@__PURE__*/ requireShared();
	var sharedKey = /*@__PURE__*/ requireSharedKey();
	var hiddenKeys = /*@__PURE__*/ requireHiddenKeys();
	var uid = /*@__PURE__*/ requireUid();
	var wellKnownSymbol = /*@__PURE__*/ requireWellKnownSymbol();
	var wrappedWellKnownSymbolModule = /*@__PURE__*/ requireWellKnownSymbolWrapped();
	var defineWellKnownSymbol = /*@__PURE__*/ requireWellKnownSymbolDefine();
	var defineSymbolToPrimitive = /*@__PURE__*/ requireSymbolDefineToPrimitive();
	var setToStringTag = /*@__PURE__*/ requireSetToStringTag();
	var InternalStateModule = /*@__PURE__*/ requireInternalState();
	var $forEach = /*@__PURE__*/ requireArrayIteration().forEach;

	var HIDDEN = sharedKey('hidden');
	var SYMBOL = 'Symbol';
	var PROTOTYPE = 'prototype';

	var setInternalState = InternalStateModule.set;
	var getInternalState = InternalStateModule.getterFor(SYMBOL);

	var ObjectPrototype = Object[PROTOTYPE];
	var $Symbol = globalThis.Symbol;
	var SymbolPrototype = $Symbol && $Symbol[PROTOTYPE];
	var RangeError = globalThis.RangeError;
	var TypeError = globalThis.TypeError;
	var QObject = globalThis.QObject;
	var nativeGetOwnPropertyDescriptor = getOwnPropertyDescriptorModule.f;
	var nativeDefineProperty = definePropertyModule.f;
	var nativeGetOwnPropertyNames = getOwnPropertyNamesExternal.f;
	var nativePropertyIsEnumerable = propertyIsEnumerableModule.f;
	var push = uncurryThis([].push);

	var AllSymbols = shared('symbols');
	var ObjectPrototypeSymbols = shared('op-symbols');
	var WellKnownSymbolsStore = shared('wks');

	// Don't use setters in Qt Script, https://github.com/zloirock/core-js/issues/173
	var USE_SETTER = !QObject || !QObject[PROTOTYPE] || !QObject[PROTOTYPE].findChild;

	// fallback for old Android, https://code.google.com/p/v8/issues/detail?id=687
	var fallbackDefineProperty = function (O, P, Attributes) {
	  var ObjectPrototypeDescriptor = nativeGetOwnPropertyDescriptor(ObjectPrototype, P);
	  if (ObjectPrototypeDescriptor) delete ObjectPrototype[P];
	  nativeDefineProperty(O, P, Attributes);
	  if (ObjectPrototypeDescriptor && O !== ObjectPrototype) {
	    nativeDefineProperty(ObjectPrototype, P, ObjectPrototypeDescriptor);
	  } return O;
	};

	var setSymbolDescriptor = DESCRIPTORS && fails(function () {
	  return nativeObjectCreate(nativeDefineProperty({}, 'a', {
	    get: function () { return nativeDefineProperty(this, 'a', { value: 7 }).a; }
	  })).a !== 7;
	}) ? fallbackDefineProperty : nativeDefineProperty;

	var wrap = function (tag, description) {
	  var symbol = AllSymbols[tag] = nativeObjectCreate(SymbolPrototype);
	  setInternalState(symbol, {
	    type: SYMBOL,
	    tag: tag,
	    description: description
	  });
	  if (!DESCRIPTORS) symbol.description = description;
	  return symbol;
	};

	var $defineProperty = function defineProperty(O, P, Attributes) {
	  if (O === ObjectPrototype) $defineProperty(ObjectPrototypeSymbols, P, Attributes);
	  anObject(O);
	  var key = toPropertyKey(P);
	  anObject(Attributes);
	  if (hasOwn(AllSymbols, key)) {
	    // first definition - default non-enumerable; redefinition - preserve existing state
	    if (!('enumerable' in Attributes) ? !hasOwn(O, key) || (hasOwn(O, HIDDEN) && O[HIDDEN][key]) : !Attributes.enumerable) {
	      if (!hasOwn(O, HIDDEN)) nativeDefineProperty(O, HIDDEN, createPropertyDescriptor(1, nativeObjectCreate(null)));
	      O[HIDDEN][key] = true;
	    } else {
	      if (hasOwn(O, HIDDEN) && O[HIDDEN][key]) O[HIDDEN][key] = false;
	      Attributes = nativeObjectCreate(Attributes, { enumerable: createPropertyDescriptor(0, false) });
	    } return setSymbolDescriptor(O, key, Attributes);
	  } return nativeDefineProperty(O, key, Attributes);
	};

	var $defineProperties = function defineProperties(O, Properties) {
	  anObject(O);
	  var properties = toIndexedObject(Properties);
	  var keys = objectKeys(properties).concat($getOwnPropertySymbols(properties));
	  $forEach(keys, function (key) {
	    if (!DESCRIPTORS || call($propertyIsEnumerable, properties, key)) $defineProperty(O, key, properties[key]);
	  });
	  return O;
	};

	var $create = function create(O, Properties) {
	  return Properties === undefined ? nativeObjectCreate(O) : $defineProperties(nativeObjectCreate(O), Properties);
	};

	var $propertyIsEnumerable = function propertyIsEnumerable(V) {
	  var P = toPropertyKey(V);
	  var enumerable = call(nativePropertyIsEnumerable, this, P);
	  if (this === ObjectPrototype && hasOwn(AllSymbols, P) && !hasOwn(ObjectPrototypeSymbols, P)) return false;
	  return enumerable || !hasOwn(this, P) || !hasOwn(AllSymbols, P) || hasOwn(this, HIDDEN) && this[HIDDEN][P]
	    ? enumerable : true;
	};

	var $getOwnPropertyDescriptor = function getOwnPropertyDescriptor(O, P) {
	  var it = toIndexedObject(O);
	  var key = toPropertyKey(P);
	  if (it === ObjectPrototype && hasOwn(AllSymbols, key) && !hasOwn(ObjectPrototypeSymbols, key)) return;
	  var descriptor = nativeGetOwnPropertyDescriptor(it, key);
	  if (descriptor && hasOwn(AllSymbols, key) && !(hasOwn(it, HIDDEN) && it[HIDDEN][key])) {
	    descriptor.enumerable = true;
	  }
	  return descriptor;
	};

	var $getOwnPropertyNames = function getOwnPropertyNames(O) {
	  var names = nativeGetOwnPropertyNames(toIndexedObject(O));
	  var result = [];
	  $forEach(names, function (key) {
	    if (!hasOwn(AllSymbols, key) && !hasOwn(hiddenKeys, key)) push(result, key);
	  });
	  return result;
	};

	var $getOwnPropertySymbols = function (O) {
	  var IS_OBJECT_PROTOTYPE = O === ObjectPrototype;
	  var names = nativeGetOwnPropertyNames(IS_OBJECT_PROTOTYPE ? ObjectPrototypeSymbols : toIndexedObject(O));
	  var result = [];
	  $forEach(names, function (key) {
	    if (hasOwn(AllSymbols, key) && (!IS_OBJECT_PROTOTYPE || hasOwn(ObjectPrototype, key))) {
	      push(result, AllSymbols[key]);
	    }
	  });
	  return result;
	};

	// `Symbol` constructor
	// https://tc39.es/ecma262/#sec-symbol-constructor
	if (!NATIVE_SYMBOL) {
	  $Symbol = function Symbol() {
	    if (isPrototypeOf(SymbolPrototype, this)) throw new TypeError('Symbol is not a constructor');
	    var description = !arguments.length || arguments[0] === undefined ? undefined : $toString(arguments[0]);
	    var tag = uid(description);
	    var setter = function (value) {
	      var $this = this === undefined ? globalThis : this;
	      if ($this === ObjectPrototype) call(setter, ObjectPrototypeSymbols, value);
	      if (hasOwn($this, HIDDEN) && hasOwn($this[HIDDEN], tag)) $this[HIDDEN][tag] = false;
	      var descriptor = createPropertyDescriptor(1, value);
	      try {
	        setSymbolDescriptor($this, tag, descriptor);
	      } catch (error) {
	        if (!(error instanceof RangeError)) throw error;
	        fallbackDefineProperty($this, tag, descriptor);
	      }
	    };
	    if (DESCRIPTORS && USE_SETTER) setSymbolDescriptor(ObjectPrototype, tag, { configurable: true, set: setter });
	    return wrap(tag, description);
	  };

	  SymbolPrototype = $Symbol[PROTOTYPE];

	  defineBuiltIn(SymbolPrototype, 'toString', function toString() {
	    return getInternalState(this).tag;
	  });

	  defineBuiltIn($Symbol, 'withoutSetter', function (description) {
	    return wrap(uid(description), description);
	  });

	  propertyIsEnumerableModule.f = $propertyIsEnumerable;
	  definePropertyModule.f = $defineProperty;
	  definePropertiesModule.f = $defineProperties;
	  getOwnPropertyDescriptorModule.f = $getOwnPropertyDescriptor;
	  getOwnPropertyNamesModule.f = getOwnPropertyNamesExternal.f = $getOwnPropertyNames;
	  getOwnPropertySymbolsModule.f = $getOwnPropertySymbols;

	  wrappedWellKnownSymbolModule.f = function (name) {
	    return wrap(wellKnownSymbol(name), name);
	  };

	  if (DESCRIPTORS) {
	    // https://tc39.es/ecma262/#sec-symbol.prototype.description
	    defineBuiltInAccessor(SymbolPrototype, 'description', {
	      configurable: true,
	      get: function description() {
	        return getInternalState(this).description;
	      }
	    });
	    if (!IS_PURE) {
	      defineBuiltIn(ObjectPrototype, 'propertyIsEnumerable', $propertyIsEnumerable, { unsafe: true });
	    }
	  }
	}

	$({ global: true, constructor: true, wrap: true, forced: !NATIVE_SYMBOL, sham: !NATIVE_SYMBOL }, {
	  Symbol: $Symbol
	});

	$forEach(objectKeys(WellKnownSymbolsStore), function (name) {
	  defineWellKnownSymbol(name);
	});

	$({ target: SYMBOL, stat: true, forced: !NATIVE_SYMBOL }, {
	  useSetter: function () { USE_SETTER = true; },
	  useSimple: function () { USE_SETTER = false; }
	});

	$({ target: 'Object', stat: true, forced: !NATIVE_SYMBOL, sham: !DESCRIPTORS }, {
	  // `Object.create` method
	  // https://tc39.es/ecma262/#sec-object.create
	  create: $create,
	  // `Object.defineProperty` method
	  // https://tc39.es/ecma262/#sec-object.defineproperty
	  defineProperty: $defineProperty,
	  // `Object.defineProperties` method
	  // https://tc39.es/ecma262/#sec-object.defineproperties
	  defineProperties: $defineProperties,
	  // `Object.getOwnPropertyDescriptor` method
	  // https://tc39.es/ecma262/#sec-object.getownpropertydescriptors
	  getOwnPropertyDescriptor: $getOwnPropertyDescriptor
	});

	$({ target: 'Object', stat: true, forced: !NATIVE_SYMBOL }, {
	  // `Object.getOwnPropertyNames` method
	  // https://tc39.es/ecma262/#sec-object.getownpropertynames
	  getOwnPropertyNames: $getOwnPropertyNames
	});

	// `Symbol.prototype[@@toPrimitive]` method
	// https://tc39.es/ecma262/#sec-symbol.prototype-@@toprimitive
	defineSymbolToPrimitive();

	// `Symbol.prototype[@@toStringTag]` property
	// https://tc39.es/ecma262/#sec-symbol.prototype-@@tostringtag
	setToStringTag($Symbol, SYMBOL);

	hiddenKeys[HIDDEN] = true;
	return es_symbol_constructor;
}

var es_symbol_for = {};

var symbolRegistryDetection;
var hasRequiredSymbolRegistryDetection;

function requireSymbolRegistryDetection () {
	if (hasRequiredSymbolRegistryDetection) return symbolRegistryDetection;
	hasRequiredSymbolRegistryDetection = 1;
	var NATIVE_SYMBOL = /*@__PURE__*/ requireSymbolConstructorDetection();

	/* eslint-disable es/no-symbol -- safe */
	symbolRegistryDetection = NATIVE_SYMBOL && !!Symbol['for'] && !!Symbol.keyFor;
	return symbolRegistryDetection;
}

var hasRequiredEs_symbol_for;

function requireEs_symbol_for () {
	if (hasRequiredEs_symbol_for) return es_symbol_for;
	hasRequiredEs_symbol_for = 1;
	var $ = /*@__PURE__*/ require_export();
	var getBuiltIn = /*@__PURE__*/ requireGetBuiltIn();
	var hasOwn = /*@__PURE__*/ requireHasOwnProperty();
	var toString = /*@__PURE__*/ requireToString();
	var shared = /*@__PURE__*/ requireShared();
	var NATIVE_SYMBOL_REGISTRY = /*@__PURE__*/ requireSymbolRegistryDetection();

	var StringToSymbolRegistry = shared('string-to-symbol-registry');
	var SymbolToStringRegistry = shared('symbol-to-string-registry');

	// `Symbol.for` method
	// https://tc39.es/ecma262/#sec-symbol.for
	$({ target: 'Symbol', stat: true, forced: !NATIVE_SYMBOL_REGISTRY }, {
	  'for': function (key) {
	    var string = toString(key);
	    if (hasOwn(StringToSymbolRegistry, string)) return StringToSymbolRegistry[string];
	    var symbol = getBuiltIn('Symbol')(string);
	    StringToSymbolRegistry[string] = symbol;
	    SymbolToStringRegistry[symbol] = string;
	    return symbol;
	  }
	});
	return es_symbol_for;
}

var es_symbol_keyFor = {};

var hasRequiredEs_symbol_keyFor;

function requireEs_symbol_keyFor () {
	if (hasRequiredEs_symbol_keyFor) return es_symbol_keyFor;
	hasRequiredEs_symbol_keyFor = 1;
	var $ = /*@__PURE__*/ require_export();
	var hasOwn = /*@__PURE__*/ requireHasOwnProperty();
	var isSymbol = /*@__PURE__*/ requireIsSymbol();
	var tryToString = /*@__PURE__*/ requireTryToString();
	var shared = /*@__PURE__*/ requireShared();
	var NATIVE_SYMBOL_REGISTRY = /*@__PURE__*/ requireSymbolRegistryDetection();

	var SymbolToStringRegistry = shared('symbol-to-string-registry');

	// `Symbol.keyFor` method
	// https://tc39.es/ecma262/#sec-symbol.keyfor
	$({ target: 'Symbol', stat: true, forced: !NATIVE_SYMBOL_REGISTRY }, {
	  keyFor: function keyFor(sym) {
	    if (!isSymbol(sym)) throw new TypeError(tryToString(sym) + ' is not a symbol');
	    if (hasOwn(SymbolToStringRegistry, sym)) return SymbolToStringRegistry[sym];
	  }
	});
	return es_symbol_keyFor;
}

var es_json_stringify = {};

var isRawJson;
var hasRequiredIsRawJson;

function requireIsRawJson () {
	if (hasRequiredIsRawJson) return isRawJson;
	hasRequiredIsRawJson = 1;
	var isObject = /*@__PURE__*/ requireIsObject();
	var getInternalState = /*@__PURE__*/ requireInternalState().get;

	isRawJson = function isRawJSON(O) {
	  if (!isObject(O)) return false;
	  var state = getInternalState(O);
	  return !!state && state.type === 'RawJSON';
	};
	return isRawJson;
}

var thisNumberValue;
var hasRequiredThisNumberValue;

function requireThisNumberValue () {
	if (hasRequiredThisNumberValue) return thisNumberValue;
	hasRequiredThisNumberValue = 1;
	var uncurryThis = /*@__PURE__*/ requireFunctionUncurryThis();

	// `thisNumberValue` abstract operation
	// https://tc39.es/ecma262/#sec-thisnumbervalue
	thisNumberValue = uncurryThis(1.1.valueOf);
	return thisNumberValue;
}

var parseJsonString;
var hasRequiredParseJsonString;

function requireParseJsonString () {
	if (hasRequiredParseJsonString) return parseJsonString;
	hasRequiredParseJsonString = 1;
	var uncurryThis = /*@__PURE__*/ requireFunctionUncurryThis();
	var hasOwn = /*@__PURE__*/ requireHasOwnProperty();

	var $SyntaxError = SyntaxError;
	var $parseInt = parseInt;
	var fromCharCode = String.fromCharCode;
	var at = uncurryThis(''.charAt);
	var slice = uncurryThis(''.slice);
	var exec = uncurryThis(/./.exec);

	var codePoints = {
	  '\\"': '"',
	  '\\\\': '\\',
	  '\\/': '/',
	  '\\b': '\b',
	  '\\f': '\f',
	  '\\n': '\n',
	  '\\r': '\r',
	  '\\t': '\t'
	};

	var IS_4_HEX_DIGITS = /^[\da-f]{4}$/i;
	// eslint-disable-next-line regexp/no-control-character -- safe
	var IS_C0_CONTROL_CODE = /^[\u0000-\u001F]$/;

	parseJsonString = function (source, i) {
	  var unterminated = true;
	  var value = '';
	  while (i < source.length) {
	    var chr = at(source, i);
	    if (chr === '\\') {
	      var twoChars = slice(source, i, i + 2);
	      if (hasOwn(codePoints, twoChars)) {
	        value += codePoints[twoChars];
	        i += 2;
	      } else if (twoChars === '\\u') {
	        i += 2;
	        var fourHexDigits = slice(source, i, i + 4);
	        if (!exec(IS_4_HEX_DIGITS, fourHexDigits)) throw new $SyntaxError('Bad Unicode escape at: ' + i);
	        value += fromCharCode($parseInt(fourHexDigits, 16));
	        i += 4;
	      } else throw new $SyntaxError('Unknown escape sequence: "' + twoChars + '"');
	    } else if (chr === '"') {
	      unterminated = false;
	      i++;
	      break;
	    } else {
	      if (exec(IS_C0_CONTROL_CODE, chr)) throw new $SyntaxError('Bad control character in string literal at: ' + i);
	      value += chr;
	      i++;
	    }
	  }
	  if (unterminated) throw new $SyntaxError('Unterminated string at: ' + i);
	  return { value: value, end: i };
	};
	return parseJsonString;
}

var nativeRawJson;
var hasRequiredNativeRawJson;

function requireNativeRawJson () {
	if (hasRequiredNativeRawJson) return nativeRawJson;
	hasRequiredNativeRawJson = 1;
	/* eslint-disable es/no-json -- safe */
	var fails = /*@__PURE__*/ requireFails();

	nativeRawJson = !fails(function () {
	  var unsafeInt = '9007199254740993';
	  // eslint-disable-next-line es/no-json-rawjson -- feature detection
	  var raw = JSON.rawJSON(unsafeInt);
	  // eslint-disable-next-line es/no-json-israwjson -- feature detection
	  return !JSON.isRawJSON(raw) || JSON.stringify(raw) !== unsafeInt;
	});
	return nativeRawJson;
}

var hasRequiredEs_json_stringify;

function requireEs_json_stringify () {
	if (hasRequiredEs_json_stringify) return es_json_stringify;
	hasRequiredEs_json_stringify = 1;
	var $ = /*@__PURE__*/ require_export();
	var getBuiltIn = /*@__PURE__*/ requireGetBuiltIn();
	var call = /*@__PURE__*/ requireFunctionCall();
	var uncurryThis = /*@__PURE__*/ requireFunctionUncurryThis();
	var fails = /*@__PURE__*/ requireFails();
	var isArray = /*@__PURE__*/ requireIsArray$3();
	var isCallable = /*@__PURE__*/ requireIsCallable();
	var isObject = /*@__PURE__*/ requireIsObject();
	var create = /*@__PURE__*/ requireObjectCreate();
	var isRawJSON = /*@__PURE__*/ requireIsRawJson();
	var isSymbol = /*@__PURE__*/ requireIsSymbol();
	var classof = /*@__PURE__*/ requireClassofRaw();
	var thisNumberValue = /*@__PURE__*/ requireThisNumberValue();
	var includes = /*@__PURE__*/ requireArrayIncludes().includes;
	var hasOwn = /*@__PURE__*/ requireHasOwnProperty();
	var toString = /*@__PURE__*/ requireToString();
	var parseJSONString = /*@__PURE__*/ requireParseJsonString();
	var uid = /*@__PURE__*/ requireUid();
	var NATIVE_SYMBOL = /*@__PURE__*/ requireSymbolConstructorDetection();
	var NATIVE_RAW_JSON = /*@__PURE__*/ requireNativeRawJson();

	var $String = String;
	var $TypeError = TypeError;
	var $stringify = getBuiltIn('JSON', 'stringify');
	var $BigInt = getBuiltIn('BigInt');
	var stringValueOf = uncurryThis(''.valueOf);
	var booleanValueOf = uncurryThis(true.valueOf);
	var bigIntValueOf = $BigInt && uncurryThis($BigInt.prototype.valueOf);
	var exec = uncurryThis(/./.exec);
	var charAt = uncurryThis(''.charAt);
	var charCodeAt = uncurryThis(''.charCodeAt);
	var replace = uncurryThis(''.replace);
	var slice = uncurryThis(''.slice);
	var push = uncurryThis([].push);
	var pop = uncurryThis([].pop);
	var numberToString = uncurryThis(1.1.toString);

	var surrogates = /[\uD800-\uDFFF]/g;
	var leadingSurrogates = /^[\uD800-\uDBFF]$/;
	var trailingSurrogates = /^[\uDC00-\uDFFF]$/;
	var digits = /^\d+$/;

	// a placeholder of a raw JSON value
	var RAW_MARK = uid();
	// a prefix of keys of a reordered object, see `createOrderedObject`
	var KEY_MARK = uid();
	// the last key of a reordered object, marks the end of its serialization
	var END_MARK = uid();
	var RAW_MARK_LENGTH = RAW_MARK.length;
	var KEY_MARK_LENGTH = KEY_MARK.length;

	var WRONG_SYMBOLS_CONVERSION = !NATIVE_SYMBOL || fails(function () {
	  var symbol = getBuiltIn('Symbol')('stringify detection');
	  // MS Edge converts symbol values to JSON as {}
	  return $stringify([symbol]) !== '[null]'
	    // WebKit converts symbol values to JSON as null
	    || $stringify({ a: symbol }) !== '{}'
	    // V8 throws on boxed symbols
	    || $stringify(Object(symbol)) !== '{}';
	});

	// https://github.com/tc39/proposal-well-formed-stringify
	var ILL_FORMED_UNICODE = fails(function () {
	  return $stringify('\uDF06\uD834') !== '"\\udf06\\ud834"'
	    || $stringify('\uDEAD') !== '"\\udead"';
	});

	var isRawJSONValue = NATIVE_RAW_JSON ? getBuiltIn('JSON', 'isRawJSON') : isRawJSON;

	var stringifyWithProperSymbolsConversion = WRONG_SYMBOLS_CONVERSION ? function (it, replacer, space) {
	  return $stringify(it, function (key, value) {
	    var replaced = call(replacer, this, key, value);
	    if (!isSymbol(replaced)) return replaced;
	  }, space);
	} : $stringify;

	var fixIllFormedJSON = function (match, offset, string) {
	  var prev = charAt(string, offset - 1);
	  var next = charAt(string, offset + 1);
	  if (
	    (exec(leadingSurrogates, match) && !exec(trailingSurrogates, next)) ||
	    (exec(trailingSurrogates, match) && !exec(leadingSurrogates, prev))
	  ) {
	    return '\\u' + numberToString(charCodeAt(match, 0), 16);
	  } return match;
	};

	// `PropertyList` of `JSON.stringify`
	// https://tc39.es/ecma262/#sec-json.stringify
	var getPropertyList = function (replacer) {
	  if (!isArray(replacer)) return;
	  var rawLength = replacer.length;
	  var propertyList = [];
	  // a null prototype object is used as a set of already added keys to keep the deduplication linear
	  var addedKeys = create(null);
	  for (var i = 0; i < rawLength; i++) {
	    var element = replacer[i];
	    var key;
	    if (typeof element == 'string') key = element;
	    else if (typeof element == 'number' || classof(element) === 'Number' || classof(element) === 'String') key = toString(element);
	    else continue;
	    if (!hasOwn(addedKeys, key)) {
	      addedKeys[key] = true;
	      push(propertyList, key);
	    }
	  }
	  return propertyList;
	};

	// values with such an internal slot are unwrapped by `SerializeJSONProperty` instead of being serialized as objects
	var hasInternalSlot = function (valueOf, it) {
	  try {
	    valueOf(it);
	    return true;
	  } catch (error) {
	    return false;
	  }
	};

	// the slot check is expensive, so it's performed only for the kind reported by the value itself -
	// a value lying about its kind via `Symbol.toStringTag` is serialized as an ordinary object
	var isBoxedPrimitive = function (it) {
	  var kind = classof(it);
	  return (kind === 'Number' && hasInternalSlot(thisNumberValue, it))
	    || (kind === 'String' && hasInternalSlot(stringValueOf, it))
	    || (kind === 'Boolean' && hasInternalSlot(booleanValueOf, it))
	    || (!!bigIntValueOf && kind === 'BigInt' && hasInternalSlot(bigIntValueOf, it));
	};

	// only objects serialized by `SerializeJSONObject` are affected by the property list
	var isSerializedAsObject = function (it) {
	  if (!isObject(it) || isCallable(it) || isArray(it)) return false;
	  try {
	    return !isBoxedPrimitive(it);
	  // `classof` reads `Symbol.toStringTag`, so a proxy could throw - it has no internal slots anyway
	  } catch (error) {
	    return true;
	  }
	};

	// the engine unwraps it in the same order as it would read the original property,
	// so the property is read lazily and `toJSON` is called once and with the original key
	var createElementHolder = function (holder, key) {
	  return {
	    toJSON: function () {
	      var element = holder[key];
	      if (isObject(element) || typeof element == 'bigint') {
	        var elementToJSON = element.toJSON;
	        if (isCallable(elementToJSON)) element = call(elementToJSON, element, key);
	      } return element;
	    }
	  };
	};

	// own keys of objects are sorted - integer-like keys are moved to the beginning,
	// so such keys should be marked and restored in the serialized string
	var getKeyPrefix = function (propertyList) {
	  for (var i = 0, length = propertyList.length; i < length; i++) {
	    if (exec(digits, propertyList[i])) return KEY_MARK;
	  } return '';
	};

	// `SerializeJSONObject` iterates the property list, so the value is replaced with an object with keys in this order
	var createOrderedObject = function (value, propertyList, keyPrefix) {
	  // keys are not marked if the property list has no integer-like keys, so `Object.prototype`
	  // with a setter, a non-writable property or `__proto__` should not intercept the assignment
	  var ordered = create(null);
	  for (var i = 0, length = propertyList.length; i < length; i++) {
	    var key = propertyList[i];
	    ordered[keyPrefix + key] = createElementHolder(value, key);
	  }
	  ordered[END_MARK] = null;
	  return ordered;
	};

	// `JSON.stringify` method
	// https://tc39.es/ecma262/#sec-json.stringify
	// https://github.com/tc39/proposal-json-parse-with-source
	if ($stringify) $({ target: 'JSON', stat: true, arity: 3, forced: WRONG_SYMBOLS_CONVERSION || ILL_FORMED_UNICODE || !NATIVE_RAW_JSON }, {
	  stringify: function stringify(text, replacer, space) {
	    var replacerFunction = isCallable(replacer) ? replacer : undefined;
	    var propertyList = replacerFunction ? undefined : getPropertyList(replacer);
	    var keyPrefix = propertyList && getKeyPrefix(propertyList);
	    var rawStrings = [];
	    var openObjects = [];
	    var parentOrdered = [];
	    var currentOrdered;
	    var marked = false;
	    var root = true;

	    var json = stringifyWithProperSymbolsConversion(text, function (key, value) {
	      // some old implementations (like WebKit) could pass numbers as keys
	      key = $String(key);

	      if (propertyList) {
	        if (key === END_MARK) {
	          pop(openObjects);
	          currentOrdered = pop(parentOrdered);
	          return;
	        }
	        if (root) root = false;
	        // the innermost reordered object already contains only keys of the property list and arrays are not
	        // affected by it, the rest of objects (like objects with a fake `Symbol.toStringTag`) are filtered here
	        else if (this !== currentOrdered && !isArray(this) && !includes(propertyList, key)) return;
	      } else if (replacerFunction) value = call(replacerFunction, this, key, value);

	      if (isRawJSONValue(value)) {
	        if (NATIVE_RAW_JSON) return value;
	        marked = true;
	        return RAW_MARK + (push(rawStrings, value.rawJSON) - 1);
	      }

	      if (propertyList && isSerializedAsObject(value)) {
	        // reordered objects are new each time, so cycles should be detected before the engine does it
	        if (includes(openObjects, value)) throw new $TypeError('Converting circular structure to JSON');
	        var ordered = createOrderedObject(value, propertyList, keyPrefix);
	        push(openObjects, value);
	        push(parentOrdered, currentOrdered);
	        currentOrdered = ordered;
	        if (keyPrefix) marked = true;
	        return ordered;
	      }

	      return value;
	    }, space);

	    if (typeof json != 'string') return json;

	    if (ILL_FORMED_UNICODE) json = replace(json, surrogates, fixIllFormedJSON);

	    if (!marked) return json;

	    var result = '';
	    var length = json.length;

	    for (var i = 0; i < length; i++) {
	      var chr = charAt(json, i);
	      if (chr === '"') {
	        var end = parseJSONString(json, ++i).end - 1;
	        var string = slice(json, i, end);
	        if (slice(string, 0, RAW_MARK_LENGTH) === RAW_MARK) result += rawStrings[slice(string, RAW_MARK_LENGTH)];
	        else if (slice(string, 0, KEY_MARK_LENGTH) === KEY_MARK) result += '"' + slice(string, KEY_MARK_LENGTH) + '"';
	        else result += '"' + string + '"';
	        i = end;
	      } else result += chr;
	    }

	    return result;
	  }
	});
	return es_json_stringify;
}

var es_object_getOwnPropertySymbols = {};

var hasRequiredEs_object_getOwnPropertySymbols;

function requireEs_object_getOwnPropertySymbols () {
	if (hasRequiredEs_object_getOwnPropertySymbols) return es_object_getOwnPropertySymbols;
	hasRequiredEs_object_getOwnPropertySymbols = 1;
	var $ = /*@__PURE__*/ require_export();
	var NATIVE_SYMBOL = /*@__PURE__*/ requireSymbolConstructorDetection();
	var fails = /*@__PURE__*/ requireFails();
	var getOwnPropertySymbolsModule = /*@__PURE__*/ requireObjectGetOwnPropertySymbols();
	var toObject = /*@__PURE__*/ requireToObject();

	// V8 ~ Chrome 38 and 39 `Object.getOwnPropertySymbols` fails on primitives
	// https://bugs.chromium.org/p/v8/issues/detail?id=3443
	var FORCED = !NATIVE_SYMBOL || fails(function () { getOwnPropertySymbolsModule.f(1); });

	// `Object.getOwnPropertySymbols` method
	// https://tc39.es/ecma262/#sec-object.getownpropertysymbols
	$({ target: 'Object', stat: true, forced: FORCED }, {
	  getOwnPropertySymbols: function getOwnPropertySymbols(it) {
	    var $getOwnPropertySymbols = getOwnPropertySymbolsModule.f;
	    return $getOwnPropertySymbols ? $getOwnPropertySymbols(toObject(it)) : [];
	  }
	});
	return es_object_getOwnPropertySymbols;
}

var hasRequiredEs_symbol;

function requireEs_symbol () {
	if (hasRequiredEs_symbol) return es_symbol;
	hasRequiredEs_symbol = 1;
	// TODO: Remove this module from `core-js@4` since it's split to modules listed below
	requireEs_symbol_constructor();
	requireEs_symbol_for();
	requireEs_symbol_keyFor();
	requireEs_json_stringify();
	requireEs_object_getOwnPropertySymbols();
	return es_symbol;
}

var es_symbol_asyncDispose = {};

var hasRequiredEs_symbol_asyncDispose;

function requireEs_symbol_asyncDispose () {
	if (hasRequiredEs_symbol_asyncDispose) return es_symbol_asyncDispose;
	hasRequiredEs_symbol_asyncDispose = 1;
	var defineWellKnownSymbol = /*@__PURE__*/ requireWellKnownSymbolDefine();

	// `Symbol.asyncDispose` well-known symbol
	// https://github.com/tc39/proposal-async-explicit-resource-management
	defineWellKnownSymbol('asyncDispose');
	return es_symbol_asyncDispose;
}

var es_symbol_asyncIterator = {};

var hasRequiredEs_symbol_asyncIterator;

function requireEs_symbol_asyncIterator () {
	if (hasRequiredEs_symbol_asyncIterator) return es_symbol_asyncIterator;
	hasRequiredEs_symbol_asyncIterator = 1;
	var defineWellKnownSymbol = /*@__PURE__*/ requireWellKnownSymbolDefine();

	// `Symbol.asyncIterator` well-known symbol
	// https://tc39.es/ecma262/#sec-symbol.asynciterator
	defineWellKnownSymbol('asyncIterator');
	return es_symbol_asyncIterator;
}

var es_symbol_dispose = {};

var hasRequiredEs_symbol_dispose;

function requireEs_symbol_dispose () {
	if (hasRequiredEs_symbol_dispose) return es_symbol_dispose;
	hasRequiredEs_symbol_dispose = 1;
	var defineWellKnownSymbol = /*@__PURE__*/ requireWellKnownSymbolDefine();

	// `Symbol.dispose` well-known symbol
	// https://github.com/tc39/proposal-explicit-resource-management
	defineWellKnownSymbol('dispose');
	return es_symbol_dispose;
}

var es_symbol_hasInstance = {};

var hasRequiredEs_symbol_hasInstance;

function requireEs_symbol_hasInstance () {
	if (hasRequiredEs_symbol_hasInstance) return es_symbol_hasInstance;
	hasRequiredEs_symbol_hasInstance = 1;
	var defineWellKnownSymbol = /*@__PURE__*/ requireWellKnownSymbolDefine();

	// `Symbol.hasInstance` well-known symbol
	// https://tc39.es/ecma262/#sec-symbol.hasinstance
	defineWellKnownSymbol('hasInstance');
	return es_symbol_hasInstance;
}

var es_symbol_isConcatSpreadable = {};

var hasRequiredEs_symbol_isConcatSpreadable;

function requireEs_symbol_isConcatSpreadable () {
	if (hasRequiredEs_symbol_isConcatSpreadable) return es_symbol_isConcatSpreadable;
	hasRequiredEs_symbol_isConcatSpreadable = 1;
	var defineWellKnownSymbol = /*@__PURE__*/ requireWellKnownSymbolDefine();

	// `Symbol.isConcatSpreadable` well-known symbol
	// https://tc39.es/ecma262/#sec-symbol.isconcatspreadable
	defineWellKnownSymbol('isConcatSpreadable');
	return es_symbol_isConcatSpreadable;
}

var es_symbol_iterator = {};

var hasRequiredEs_symbol_iterator;

function requireEs_symbol_iterator () {
	if (hasRequiredEs_symbol_iterator) return es_symbol_iterator;
	hasRequiredEs_symbol_iterator = 1;
	var defineWellKnownSymbol = /*@__PURE__*/ requireWellKnownSymbolDefine();

	// `Symbol.iterator` well-known symbol
	// https://tc39.es/ecma262/#sec-symbol.iterator
	defineWellKnownSymbol('iterator');
	return es_symbol_iterator;
}

var es_symbol_match = {};

var hasRequiredEs_symbol_match;

function requireEs_symbol_match () {
	if (hasRequiredEs_symbol_match) return es_symbol_match;
	hasRequiredEs_symbol_match = 1;
	var defineWellKnownSymbol = /*@__PURE__*/ requireWellKnownSymbolDefine();

	// `Symbol.match` well-known symbol
	// https://tc39.es/ecma262/#sec-symbol.match
	defineWellKnownSymbol('match');
	return es_symbol_match;
}

var es_symbol_matchAll = {};

var hasRequiredEs_symbol_matchAll;

function requireEs_symbol_matchAll () {
	if (hasRequiredEs_symbol_matchAll) return es_symbol_matchAll;
	hasRequiredEs_symbol_matchAll = 1;
	var defineWellKnownSymbol = /*@__PURE__*/ requireWellKnownSymbolDefine();

	// `Symbol.matchAll` well-known symbol
	// https://tc39.es/ecma262/#sec-symbol.matchall
	defineWellKnownSymbol('matchAll');
	return es_symbol_matchAll;
}

var es_symbol_replace = {};

var hasRequiredEs_symbol_replace;

function requireEs_symbol_replace () {
	if (hasRequiredEs_symbol_replace) return es_symbol_replace;
	hasRequiredEs_symbol_replace = 1;
	var defineWellKnownSymbol = /*@__PURE__*/ requireWellKnownSymbolDefine();

	// `Symbol.replace` well-known symbol
	// https://tc39.es/ecma262/#sec-symbol.replace
	defineWellKnownSymbol('replace');
	return es_symbol_replace;
}

var es_symbol_search = {};

var hasRequiredEs_symbol_search;

function requireEs_symbol_search () {
	if (hasRequiredEs_symbol_search) return es_symbol_search;
	hasRequiredEs_symbol_search = 1;
	var defineWellKnownSymbol = /*@__PURE__*/ requireWellKnownSymbolDefine();

	// `Symbol.search` well-known symbol
	// https://tc39.es/ecma262/#sec-symbol.search
	defineWellKnownSymbol('search');
	return es_symbol_search;
}

var es_symbol_species = {};

var hasRequiredEs_symbol_species;

function requireEs_symbol_species () {
	if (hasRequiredEs_symbol_species) return es_symbol_species;
	hasRequiredEs_symbol_species = 1;
	var defineWellKnownSymbol = /*@__PURE__*/ requireWellKnownSymbolDefine();

	// `Symbol.species` well-known symbol
	// https://tc39.es/ecma262/#sec-symbol.species
	defineWellKnownSymbol('species');
	return es_symbol_species;
}

var es_symbol_split = {};

var hasRequiredEs_symbol_split;

function requireEs_symbol_split () {
	if (hasRequiredEs_symbol_split) return es_symbol_split;
	hasRequiredEs_symbol_split = 1;
	var defineWellKnownSymbol = /*@__PURE__*/ requireWellKnownSymbolDefine();

	// `Symbol.split` well-known symbol
	// https://tc39.es/ecma262/#sec-symbol.split
	defineWellKnownSymbol('split');
	return es_symbol_split;
}

var es_symbol_toPrimitive = {};

var hasRequiredEs_symbol_toPrimitive;

function requireEs_symbol_toPrimitive () {
	if (hasRequiredEs_symbol_toPrimitive) return es_symbol_toPrimitive;
	hasRequiredEs_symbol_toPrimitive = 1;
	var defineWellKnownSymbol = /*@__PURE__*/ requireWellKnownSymbolDefine();
	var defineSymbolToPrimitive = /*@__PURE__*/ requireSymbolDefineToPrimitive();

	// `Symbol.toPrimitive` well-known symbol
	// https://tc39.es/ecma262/#sec-symbol.toprimitive
	defineWellKnownSymbol('toPrimitive');

	// `Symbol.prototype[@@toPrimitive]` method
	// https://tc39.es/ecma262/#sec-symbol.prototype-@@toprimitive
	defineSymbolToPrimitive();
	return es_symbol_toPrimitive;
}

var es_symbol_toStringTag = {};

var hasRequiredEs_symbol_toStringTag;

function requireEs_symbol_toStringTag () {
	if (hasRequiredEs_symbol_toStringTag) return es_symbol_toStringTag;
	hasRequiredEs_symbol_toStringTag = 1;
	var getBuiltIn = /*@__PURE__*/ requireGetBuiltIn();
	var defineWellKnownSymbol = /*@__PURE__*/ requireWellKnownSymbolDefine();
	var setToStringTag = /*@__PURE__*/ requireSetToStringTag();

	// `Symbol.toStringTag` well-known symbol
	// https://tc39.es/ecma262/#sec-symbol.tostringtag
	defineWellKnownSymbol('toStringTag');

	// `Symbol.prototype[@@toStringTag]` property
	// https://tc39.es/ecma262/#sec-symbol.prototype-@@tostringtag
	setToStringTag(getBuiltIn('Symbol'), 'Symbol');
	return es_symbol_toStringTag;
}

var es_symbol_unscopables = {};

var hasRequiredEs_symbol_unscopables;

function requireEs_symbol_unscopables () {
	if (hasRequiredEs_symbol_unscopables) return es_symbol_unscopables;
	hasRequiredEs_symbol_unscopables = 1;
	var defineWellKnownSymbol = /*@__PURE__*/ requireWellKnownSymbolDefine();

	// `Symbol.unscopables` well-known symbol
	// https://tc39.es/ecma262/#sec-symbol.unscopables
	defineWellKnownSymbol('unscopables');
	return es_symbol_unscopables;
}

var es_json_toStringTag = {};

var hasRequiredEs_json_toStringTag;

function requireEs_json_toStringTag () {
	if (hasRequiredEs_json_toStringTag) return es_json_toStringTag;
	hasRequiredEs_json_toStringTag = 1;
	var globalThis = /*@__PURE__*/ requireGlobalThis();
	var setToStringTag = /*@__PURE__*/ requireSetToStringTag();

	// JSON[@@toStringTag] property
	// https://tc39.es/ecma262/#sec-json-@@tostringtag
	setToStringTag(globalThis.JSON, 'JSON', true);
	return es_json_toStringTag;
}

var symbol$2;
var hasRequiredSymbol$2;

function requireSymbol$2 () {
	if (hasRequiredSymbol$2) return symbol$2;
	hasRequiredSymbol$2 = 1;
	requireEs_array_concat();
	requireEs_symbol();
	requireEs_symbol_asyncDispose();
	requireEs_symbol_asyncIterator();
	requireEs_symbol_dispose();
	requireEs_symbol_hasInstance();
	requireEs_symbol_isConcatSpreadable();
	requireEs_symbol_iterator();
	requireEs_symbol_match();
	requireEs_symbol_matchAll();
	requireEs_symbol_replace();
	requireEs_symbol_search();
	requireEs_symbol_species();
	requireEs_symbol_split();
	requireEs_symbol_toPrimitive();
	requireEs_symbol_toStringTag();
	requireEs_symbol_unscopables();
	requireEs_json_toStringTag();
	var path = /*@__PURE__*/ requirePath();

	symbol$2 = path.Symbol;
	return symbol$2;
}

var symbol$1;
var hasRequiredSymbol$1;

function requireSymbol$1 () {
	if (hasRequiredSymbol$1) return symbol$1;
	hasRequiredSymbol$1 = 1;
	var parent = /*@__PURE__*/ requireSymbol$2();
	requireWeb_domCollections_iterator();

	symbol$1 = parent;
	return symbol$1;
}

var es_array_slice = {};

var hasRequiredEs_array_slice;

function requireEs_array_slice () {
	if (hasRequiredEs_array_slice) return es_array_slice;
	hasRequiredEs_array_slice = 1;
	var $ = /*@__PURE__*/ require_export();
	var isArray = /*@__PURE__*/ requireIsArray$3();
	var isConstructor = /*@__PURE__*/ requireIsConstructor();
	var isObject = /*@__PURE__*/ requireIsObject();
	var toAbsoluteIndex = /*@__PURE__*/ requireToAbsoluteIndex();
	var lengthOfArrayLike = /*@__PURE__*/ requireLengthOfArrayLike();
	var toIndexedObject = /*@__PURE__*/ requireToIndexedObject();
	var createProperty = /*@__PURE__*/ requireCreateProperty();
	var setArrayLength = /*@__PURE__*/ requireArraySetLength();
	var wellKnownSymbol = /*@__PURE__*/ requireWellKnownSymbol();
	var arrayMethodHasSpeciesSupport = /*@__PURE__*/ requireArrayMethodHasSpeciesSupport();
	var nativeSlice = /*@__PURE__*/ requireArraySlice();

	var HAS_SPECIES_SUPPORT = arrayMethodHasSpeciesSupport('slice');

	var SPECIES = wellKnownSymbol('species');
	var $Array = Array;
	var max = Math.max;

	// `Array.prototype.slice` method
	// https://tc39.es/ecma262/#sec-array.prototype.slice
	// fallback for not array-like ES3 strings and DOM objects
	$({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT }, {
	  slice: function slice(start, end) {
	    var O = toIndexedObject(this);
	    var length = lengthOfArrayLike(O);
	    var k = toAbsoluteIndex(start, length);
	    var fin = toAbsoluteIndex(end === undefined ? length : end, length);
	    // inline `ArraySpeciesCreate` for usage native `Array#slice` where it's possible
	    var Constructor, result, n;
	    if (isArray(O)) {
	      Constructor = O.constructor;
	      // cross-realm fallback
	      if (isConstructor(Constructor) && (Constructor === $Array || isArray(Constructor.prototype))) {
	        Constructor = undefined;
	      } else if (isObject(Constructor)) {
	        Constructor = Constructor[SPECIES];
	        if (Constructor === null) Constructor = undefined;
	      }
	      if (Constructor === $Array || Constructor === undefined) {
	        return nativeSlice(O, k, fin);
	      }
	    }
	    result = new (Constructor === undefined ? $Array : Constructor)(max(fin - k, 0));
	    for (n = 0; k < fin; k++, n++) if (k in O) createProperty(result, n, O[k]);
	    setArrayLength(result, n);
	    return result;
	  }
	});
	return es_array_slice;
}

var slice$3;
var hasRequiredSlice$3;

function requireSlice$3 () {
	if (hasRequiredSlice$3) return slice$3;
	hasRequiredSlice$3 = 1;
	requireEs_array_slice();
	var getBuiltInPrototypeMethod = /*@__PURE__*/ requireGetBuiltInPrototypeMethod();

	slice$3 = getBuiltInPrototypeMethod('Array', 'slice');
	return slice$3;
}

var slice$2;
var hasRequiredSlice$2;

function requireSlice$2 () {
	if (hasRequiredSlice$2) return slice$2;
	hasRequiredSlice$2 = 1;
	var isPrototypeOf = /*@__PURE__*/ requireObjectIsPrototypeOf();
	var method = /*@__PURE__*/ requireSlice$3();

	var ArrayPrototype = Array.prototype;

	slice$2 = function (it) {
	  var own = it.slice;
	  return it === ArrayPrototype || (isPrototypeOf(ArrayPrototype, it) && own === ArrayPrototype.slice) ? method : own;
	};
	return slice$2;
}

var slice$1;
var hasRequiredSlice$1;

function requireSlice$1 () {
	if (hasRequiredSlice$1) return slice$1;
	hasRequiredSlice$1 = 1;
	var parent = /*@__PURE__*/ requireSlice$2();

	slice$1 = parent;
	return slice$1;
}

var symbol;
var hasRequiredSymbol;

function requireSymbol () {
	if (hasRequiredSymbol) return symbol;
	hasRequiredSymbol = 1;
	symbol = /*@__PURE__*/ requireSymbol$1();
	return symbol;
}

var symbolExports = requireSymbol();
var _Symbol = /*@__PURE__*/getDefaultExportFromCjs(symbolExports);

var slice;
var hasRequiredSlice;

function requireSlice () {
	if (hasRequiredSlice) return slice;
	hasRequiredSlice = 1;
	slice = /*@__PURE__*/ requireSlice$1();
	return slice;
}

var sliceExports = requireSlice();
var _sliceInstanceProperty = /*@__PURE__*/getDefaultExportFromCjs(sliceExports);

var es_array_map = {};

var hasRequiredEs_array_map;

function requireEs_array_map () {
	if (hasRequiredEs_array_map) return es_array_map;
	hasRequiredEs_array_map = 1;
	var $ = /*@__PURE__*/ require_export();
	var $map = /*@__PURE__*/ requireArrayIteration().map;
	var arrayMethodHasSpeciesSupport = /*@__PURE__*/ requireArrayMethodHasSpeciesSupport();

	var HAS_SPECIES_SUPPORT = arrayMethodHasSpeciesSupport('map');

	// `Array.prototype.map` method
	// https://tc39.es/ecma262/#sec-array.prototype.map
	// with adding support of @@species
	$({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT }, {
	  map: function map(callbackfn /* , thisArg */) {
	    return $map(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
	  }
	});
	return es_array_map;
}

var map$3;
var hasRequiredMap$3;

function requireMap$3 () {
	if (hasRequiredMap$3) return map$3;
	hasRequiredMap$3 = 1;
	requireEs_array_map();
	var getBuiltInPrototypeMethod = /*@__PURE__*/ requireGetBuiltInPrototypeMethod();

	map$3 = getBuiltInPrototypeMethod('Array', 'map');
	return map$3;
}

var map$2;
var hasRequiredMap$2;

function requireMap$2 () {
	if (hasRequiredMap$2) return map$2;
	hasRequiredMap$2 = 1;
	var isPrototypeOf = /*@__PURE__*/ requireObjectIsPrototypeOf();
	var method = /*@__PURE__*/ requireMap$3();

	var ArrayPrototype = Array.prototype;

	map$2 = function (it) {
	  var own = it.map;
	  return it === ArrayPrototype || (isPrototypeOf(ArrayPrototype, it) && own === ArrayPrototype.map) ? method : own;
	};
	return map$2;
}

var map$1;
var hasRequiredMap$1;

function requireMap$1 () {
	if (hasRequiredMap$1) return map$1;
	hasRequiredMap$1 = 1;
	var parent = /*@__PURE__*/ requireMap$2();

	map$1 = parent;
	return map$1;
}

var map;
var hasRequiredMap;

function requireMap () {
	if (hasRequiredMap) return map;
	hasRequiredMap = 1;
	map = /*@__PURE__*/ requireMap$1();
	return map;
}

var mapExports = requireMap();
var _mapInstanceProperty = /*@__PURE__*/getDefaultExportFromCjs(mapExports);

var es_object_keys = {};

var hasRequiredEs_object_keys;

function requireEs_object_keys () {
	if (hasRequiredEs_object_keys) return es_object_keys;
	hasRequiredEs_object_keys = 1;
	var $ = /*@__PURE__*/ require_export();
	var toObject = /*@__PURE__*/ requireToObject();
	var nativeKeys = /*@__PURE__*/ requireObjectKeys();
	var fails = /*@__PURE__*/ requireFails();

	var FAILS_ON_PRIMITIVES = fails(function () { nativeKeys(1); });

	// `Object.keys` method
	// https://tc39.es/ecma262/#sec-object.keys
	$({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES }, {
	  keys: function keys(it) {
	    return nativeKeys(toObject(it));
	  }
	});
	return es_object_keys;
}

var keys$2;
var hasRequiredKeys$2;

function requireKeys$2 () {
	if (hasRequiredKeys$2) return keys$2;
	hasRequiredKeys$2 = 1;
	requireEs_object_keys();
	var path = /*@__PURE__*/ requirePath();

	keys$2 = path.Object.keys;
	return keys$2;
}

var keys$1;
var hasRequiredKeys$1;

function requireKeys$1 () {
	if (hasRequiredKeys$1) return keys$1;
	hasRequiredKeys$1 = 1;
	var parent = /*@__PURE__*/ requireKeys$2();

	keys$1 = parent;
	return keys$1;
}

var keys;
var hasRequiredKeys;

function requireKeys () {
	if (hasRequiredKeys) return keys;
	hasRequiredKeys = 1;
	keys = /*@__PURE__*/ requireKeys$1();
	return keys;
}

var keysExports = requireKeys();
var _Object$keys = /*@__PURE__*/getDefaultExportFromCjs(keysExports);

var es_function_bind = {};

var functionBind;
var hasRequiredFunctionBind;

function requireFunctionBind () {
	if (hasRequiredFunctionBind) return functionBind;
	hasRequiredFunctionBind = 1;
	var uncurryThis = /*@__PURE__*/ requireFunctionUncurryThis();
	var aCallable = /*@__PURE__*/ requireACallable();
	var isObject = /*@__PURE__*/ requireIsObject();
	var hasOwn = /*@__PURE__*/ requireHasOwnProperty();
	var arraySlice = /*@__PURE__*/ requireArraySlice();
	var NATIVE_BIND = /*@__PURE__*/ requireFunctionBindNative();

	var $Function = Function;
	var concat = uncurryThis([].concat);
	var join = uncurryThis([].join);
	var factories = {};

	var construct = function (C, argsLength, args) {
	  if (!hasOwn(factories, argsLength)) {
	    var list = [];
	    var i = 0;
	    for (; i < argsLength; i++) list[i] = 'a[' + i + ']';
	    factories[argsLength] = $Function('C,a', 'return new C(' + join(list, ',') + ')');
	  } return factories[argsLength](C, args);
	};

	// `Function.prototype.bind` method implementation
	// https://tc39.es/ecma262/#sec-function.prototype.bind
	// eslint-disable-next-line es/no-function-prototype-bind -- detection
	functionBind = NATIVE_BIND ? $Function.bind : function bind(that /* , ...args */) {
	  var F = aCallable(this);
	  var Prototype = F.prototype;
	  var partArgs = arraySlice(arguments, 1);
	  var boundFunction = function bound(/* args... */) {
	    var args = concat(partArgs, arraySlice(arguments));
	    return this instanceof boundFunction ? construct(F, args.length, args) : F.apply(that, args);
	  };
	  if (isObject(Prototype)) boundFunction.prototype = Prototype;
	  return boundFunction;
	};
	return functionBind;
}

var hasRequiredEs_function_bind;

function requireEs_function_bind () {
	if (hasRequiredEs_function_bind) return es_function_bind;
	hasRequiredEs_function_bind = 1;
	// TODO: Remove from `core-js@4`
	var $ = /*@__PURE__*/ require_export();
	var bind = /*@__PURE__*/ requireFunctionBind();

	// `Function.prototype.bind` method
	// https://tc39.es/ecma262/#sec-function.prototype.bind
	// eslint-disable-next-line es/no-function-prototype-bind -- detection
	$({ target: 'Function', proto: true, forced: Function.bind !== bind }, {
	  bind: bind
	});
	return es_function_bind;
}

var bind$3;
var hasRequiredBind$3;

function requireBind$3 () {
	if (hasRequiredBind$3) return bind$3;
	hasRequiredBind$3 = 1;
	requireEs_function_bind();
	var getBuiltInPrototypeMethod = /*@__PURE__*/ requireGetBuiltInPrototypeMethod();

	bind$3 = getBuiltInPrototypeMethod('Function', 'bind');
	return bind$3;
}

var bind$2;
var hasRequiredBind$2;

function requireBind$2 () {
	if (hasRequiredBind$2) return bind$2;
	hasRequiredBind$2 = 1;
	var isPrototypeOf = /*@__PURE__*/ requireObjectIsPrototypeOf();
	var method = /*@__PURE__*/ requireBind$3();

	var FunctionPrototype = Function.prototype;

	bind$2 = function (it) {
	  var own = it.bind;
	  return it === FunctionPrototype || (isPrototypeOf(FunctionPrototype, it) && own === FunctionPrototype.bind) ? method : own;
	};
	return bind$2;
}

var bind$1;
var hasRequiredBind$1;

function requireBind$1 () {
	if (hasRequiredBind$1) return bind$1;
	hasRequiredBind$1 = 1;
	var parent = /*@__PURE__*/ requireBind$2();

	bind$1 = parent;
	return bind$1;
}

var bind;
var hasRequiredBind;

function requireBind () {
	if (hasRequiredBind) return bind;
	hasRequiredBind = 1;
	bind = /*@__PURE__*/ requireBind$1();
	return bind;
}

var bindExports = requireBind();
var _bindInstanceProperty = /*@__PURE__*/getDefaultExportFromCjs(bindExports);

var es_array_splice = {};

var hasRequiredEs_array_splice;

function requireEs_array_splice () {
	if (hasRequiredEs_array_splice) return es_array_splice;
	hasRequiredEs_array_splice = 1;
	var $ = /*@__PURE__*/ require_export();
	var toObject = /*@__PURE__*/ requireToObject();
	var toAbsoluteIndex = /*@__PURE__*/ requireToAbsoluteIndex();
	var toIntegerOrInfinity = /*@__PURE__*/ requireToIntegerOrInfinity();
	var lengthOfArrayLike = /*@__PURE__*/ requireLengthOfArrayLike();
	var setArrayLength = /*@__PURE__*/ requireArraySetLength();
	var doesNotExceedSafeInteger = /*@__PURE__*/ requireDoesNotExceedSafeInteger();
	var arraySpeciesCreate = /*@__PURE__*/ requireArraySpeciesCreate();
	var createProperty = /*@__PURE__*/ requireCreateProperty();
	var deletePropertyOrThrow = /*@__PURE__*/ requireDeletePropertyOrThrow();
	var arrayMethodHasSpeciesSupport = /*@__PURE__*/ requireArrayMethodHasSpeciesSupport();

	var HAS_SPECIES_SUPPORT = arrayMethodHasSpeciesSupport('splice');

	var max = Math.max;
	var min = Math.min;

	// `Array.prototype.splice` method
	// https://tc39.es/ecma262/#sec-array.prototype.splice
	// with adding support of @@species
	$({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT }, {
	  splice: function splice(start, deleteCount /* , ...items */) {
	    var O = toObject(this);
	    var len = lengthOfArrayLike(O);
	    var actualStart = toAbsoluteIndex(start, len);
	    var argumentsLength = arguments.length;
	    var insertCount, actualDeleteCount, A, k, from, to;
	    if (argumentsLength === 0) {
	      insertCount = actualDeleteCount = 0;
	    } else if (argumentsLength === 1) {
	      insertCount = 0;
	      actualDeleteCount = len - actualStart;
	    } else {
	      insertCount = argumentsLength - 2;
	      actualDeleteCount = min(max(toIntegerOrInfinity(deleteCount), 0), len - actualStart);
	    }
	    doesNotExceedSafeInteger(len + insertCount - actualDeleteCount);
	    A = arraySpeciesCreate(O, actualDeleteCount);
	    for (k = 0; k < actualDeleteCount; k++) {
	      from = actualStart + k;
	      if (from in O) createProperty(A, k, O[from]);
	    }
	    setArrayLength(A, actualDeleteCount);
	    if (insertCount < actualDeleteCount) {
	      for (k = actualStart; k < len - actualDeleteCount; k++) {
	        from = k + actualDeleteCount;
	        to = k + insertCount;
	        if (from in O) O[to] = O[from];
	        else deletePropertyOrThrow(O, to);
	      }
	      for (k = len; k > len - actualDeleteCount + insertCount; k--) deletePropertyOrThrow(O, k - 1);
	    } else if (insertCount > actualDeleteCount) {
	      for (k = len - actualDeleteCount; k > actualStart; k--) {
	        from = k + actualDeleteCount - 1;
	        to = k + insertCount - 1;
	        if (from in O) O[to] = O[from];
	        else deletePropertyOrThrow(O, to);
	      }
	    }
	    for (k = 0; k < insertCount; k++) {
	      O[k + actualStart] = arguments[k + 2];
	    }
	    setArrayLength(O, len - actualDeleteCount + insertCount);
	    return A;
	  }
	});
	return es_array_splice;
}

var splice$3;
var hasRequiredSplice$3;

function requireSplice$3 () {
	if (hasRequiredSplice$3) return splice$3;
	hasRequiredSplice$3 = 1;
	requireEs_array_splice();
	var getBuiltInPrototypeMethod = /*@__PURE__*/ requireGetBuiltInPrototypeMethod();

	splice$3 = getBuiltInPrototypeMethod('Array', 'splice');
	return splice$3;
}

var splice$2;
var hasRequiredSplice$2;

function requireSplice$2 () {
	if (hasRequiredSplice$2) return splice$2;
	hasRequiredSplice$2 = 1;
	var isPrototypeOf = /*@__PURE__*/ requireObjectIsPrototypeOf();
	var method = /*@__PURE__*/ requireSplice$3();

	var ArrayPrototype = Array.prototype;

	splice$2 = function (it) {
	  var own = it.splice;
	  return it === ArrayPrototype || (isPrototypeOf(ArrayPrototype, it) && own === ArrayPrototype.splice) ? method : own;
	};
	return splice$2;
}

var splice$1;
var hasRequiredSplice$1;

function requireSplice$1 () {
	if (hasRequiredSplice$1) return splice$1;
	hasRequiredSplice$1 = 1;
	var parent = /*@__PURE__*/ requireSplice$2();

	splice$1 = parent;
	return splice$1;
}

var splice;
var hasRequiredSplice;

function requireSplice () {
	if (hasRequiredSplice) return splice;
	hasRequiredSplice = 1;
	splice = /*@__PURE__*/ requireSplice$1();
	return splice;
}

var spliceExports = requireSplice();
var _spliceInstanceProperty = /*@__PURE__*/getDefaultExportFromCjs(spliceExports);

var es_object_getPrototypeOf = {};

var hasRequiredEs_object_getPrototypeOf;

function requireEs_object_getPrototypeOf () {
	if (hasRequiredEs_object_getPrototypeOf) return es_object_getPrototypeOf;
	hasRequiredEs_object_getPrototypeOf = 1;
	var $ = /*@__PURE__*/ require_export();
	var fails = /*@__PURE__*/ requireFails();
	var toObject = /*@__PURE__*/ requireToObject();
	var nativeGetPrototypeOf = /*@__PURE__*/ requireObjectGetPrototypeOf();
	var CORRECT_PROTOTYPE_GETTER = /*@__PURE__*/ requireCorrectPrototypeGetter();

	var FAILS_ON_PRIMITIVES = fails(function () { nativeGetPrototypeOf(1); });

	// `Object.getPrototypeOf` method
	// https://tc39.es/ecma262/#sec-object.getprototypeof
	$({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES, sham: !CORRECT_PROTOTYPE_GETTER }, {
	  getPrototypeOf: function getPrototypeOf(it) {
	    return nativeGetPrototypeOf(toObject(it));
	  }
	});
	return es_object_getPrototypeOf;
}

var getPrototypeOf$2;
var hasRequiredGetPrototypeOf$2;

function requireGetPrototypeOf$2 () {
	if (hasRequiredGetPrototypeOf$2) return getPrototypeOf$2;
	hasRequiredGetPrototypeOf$2 = 1;
	requireEs_object_getPrototypeOf();
	var path = /*@__PURE__*/ requirePath();

	getPrototypeOf$2 = path.Object.getPrototypeOf;
	return getPrototypeOf$2;
}

var getPrototypeOf$1;
var hasRequiredGetPrototypeOf$1;

function requireGetPrototypeOf$1 () {
	if (hasRequiredGetPrototypeOf$1) return getPrototypeOf$1;
	hasRequiredGetPrototypeOf$1 = 1;
	var parent = /*@__PURE__*/ requireGetPrototypeOf$2();

	getPrototypeOf$1 = parent;
	return getPrototypeOf$1;
}

var getPrototypeOf;
var hasRequiredGetPrototypeOf;

function requireGetPrototypeOf () {
	if (hasRequiredGetPrototypeOf) return getPrototypeOf;
	hasRequiredGetPrototypeOf = 1;
	getPrototypeOf = /*@__PURE__*/ requireGetPrototypeOf$1();
	return getPrototypeOf;
}

var getPrototypeOfExports = requireGetPrototypeOf();
var _Object$getPrototypeOf = /*@__PURE__*/getDefaultExportFromCjs(getPrototypeOfExports);

var es_parseInt = {};

var numberParseInt;
var hasRequiredNumberParseInt;

function requireNumberParseInt () {
	if (hasRequiredNumberParseInt) return numberParseInt;
	hasRequiredNumberParseInt = 1;
	var globalThis = /*@__PURE__*/ requireGlobalThis();
	var fails = /*@__PURE__*/ requireFails();
	var uncurryThis = /*@__PURE__*/ requireFunctionUncurryThis();
	var toString = /*@__PURE__*/ requireToString();
	var trim = /*@__PURE__*/ requireStringTrim().trim;
	var whitespaces = /*@__PURE__*/ requireWhitespaces();

	var $parseInt = globalThis.parseInt;
	var Symbol = globalThis.Symbol;
	var ITERATOR = Symbol && Symbol.iterator;
	var hex = /^[+-]?0x/i;
	var exec = uncurryThis(hex.exec);
	var FORCED = $parseInt(whitespaces + '08') !== 8 || $parseInt(whitespaces + '0x16') !== 22
	  // MS Edge 18- broken with boxed symbols
	  || (ITERATOR && !fails(function () { $parseInt(Object(ITERATOR)); }));

	// `parseInt` method
	// https://tc39.es/ecma262/#sec-parseint-string-radix
	numberParseInt = FORCED ? function parseInt(string, radix) {
	  var S = trim(toString(string));
	  return $parseInt(S, (radix >>> 0) || (exec(hex, S) ? 16 : 10));
	} : $parseInt;
	return numberParseInt;
}

var hasRequiredEs_parseInt;

function requireEs_parseInt () {
	if (hasRequiredEs_parseInt) return es_parseInt;
	hasRequiredEs_parseInt = 1;
	var $ = /*@__PURE__*/ require_export();
	var $parseInt = /*@__PURE__*/ requireNumberParseInt();

	// `parseInt` method
	// https://tc39.es/ecma262/#sec-parseint-string-radix
	$({ global: true, forced: parseInt !== $parseInt }, {
	  parseInt: $parseInt
	});
	return es_parseInt;
}

var _parseInt$3;
var hasRequired_parseInt$2;

function require_parseInt$2 () {
	if (hasRequired_parseInt$2) return _parseInt$3;
	hasRequired_parseInt$2 = 1;
	requireEs_parseInt();
	var path = /*@__PURE__*/ requirePath();

	_parseInt$3 = path.parseInt;
	return _parseInt$3;
}

var _parseInt$2;
var hasRequired_parseInt$1;

function require_parseInt$1 () {
	if (hasRequired_parseInt$1) return _parseInt$2;
	hasRequired_parseInt$1 = 1;
	var parent = /*@__PURE__*/ require_parseInt$2();

	_parseInt$2 = parent;
	return _parseInt$2;
}

var _parseInt$1;
var hasRequired_parseInt;

function require_parseInt () {
	if (hasRequired_parseInt) return _parseInt$1;
	hasRequired_parseInt = 1;
	_parseInt$1 = /*@__PURE__*/ require_parseInt$1();
	return _parseInt$1;
}

var _parseIntExports = require_parseInt();
var _parseInt = /*@__PURE__*/getDefaultExportFromCjs(_parseIntExports);

var es_date_toJson = {};

var stringRepeat;
var hasRequiredStringRepeat;

function requireStringRepeat () {
	if (hasRequiredStringRepeat) return stringRepeat;
	hasRequiredStringRepeat = 1;
	var toIntegerOrInfinity = /*@__PURE__*/ requireToIntegerOrInfinity();
	var toString = /*@__PURE__*/ requireToString();
	var requireObjectCoercible = /*@__PURE__*/ requireRequireObjectCoercible();

	var $RangeError = RangeError;
	var floor = Math.floor;

	// `String.prototype.repeat` method implementation
	// https://tc39.es/ecma262/#sec-string.prototype.repeat
	stringRepeat = function repeat(count) {
	  var str = toString(requireObjectCoercible(this));
	  var result = '';
	  var n = toIntegerOrInfinity(count);
	  if (n < 0 || n === Infinity) throw new $RangeError('Wrong number of repetitions');
	  for (;n > 0; (n = floor(n / 2)) && (str += str)) if (n % 2) result += str;
	  return result;
	};
	return stringRepeat;
}

var stringPad;
var hasRequiredStringPad;

function requireStringPad () {
	if (hasRequiredStringPad) return stringPad;
	hasRequiredStringPad = 1;
	var uncurryThis = /*@__PURE__*/ requireFunctionUncurryThis();
	var toLength = /*@__PURE__*/ requireToLength();
	var toString = /*@__PURE__*/ requireToString();
	var $repeat = /*@__PURE__*/ requireStringRepeat();
	var requireObjectCoercible = /*@__PURE__*/ requireRequireObjectCoercible();

	var repeat = uncurryThis($repeat);
	var stringSlice = uncurryThis(''.slice);
	var ceil = Math.ceil;

	// `String.prototype.{ padStart, padEnd }` methods implementation
	var createMethod = function (IS_END) {
	  return function ($this, maxLength, fillString) {
	    var S = toString(requireObjectCoercible($this));
	    var intMaxLength = toLength(maxLength);
	    var stringLength = S.length;
	    if (intMaxLength <= stringLength) return S;
	    var fillStr = fillString === undefined ? ' ' : toString(fillString);
	    var fillLen, stringFiller;
	    if (fillStr === '') return S;
	    fillLen = intMaxLength - stringLength;
	    stringFiller = repeat(fillStr, ceil(fillLen / fillStr.length));
	    if (stringFiller.length > fillLen) stringFiller = stringSlice(stringFiller, 0, fillLen);
	    return IS_END ? S + stringFiller : stringFiller + S;
	  };
	};

	stringPad = {
	  // `String.prototype.padStart` method
	  // https://tc39.es/ecma262/#sec-string.prototype.padstart
	  start: createMethod(false),
	  // `String.prototype.padEnd` method
	  // https://tc39.es/ecma262/#sec-string.prototype.padend
	  end: createMethod(true)
	};
	return stringPad;
}

var dateToIsoString;
var hasRequiredDateToIsoString;

function requireDateToIsoString () {
	if (hasRequiredDateToIsoString) return dateToIsoString;
	hasRequiredDateToIsoString = 1;
	var uncurryThis = /*@__PURE__*/ requireFunctionUncurryThis();
	var fails = /*@__PURE__*/ requireFails();
	var padStart = /*@__PURE__*/ requireStringPad().start;

	var $RangeError = RangeError;
	var $isFinite = isFinite;
	var abs = Math.abs;
	var DatePrototype = Date.prototype;
	var nativeDateToISOString = DatePrototype.toISOString;
	var thisTimeValue = uncurryThis(DatePrototype.getTime);
	var getUTCDate = uncurryThis(DatePrototype.getUTCDate);
	var getUTCFullYear = uncurryThis(DatePrototype.getUTCFullYear);
	var getUTCHours = uncurryThis(DatePrototype.getUTCHours);
	var getUTCMilliseconds = uncurryThis(DatePrototype.getUTCMilliseconds);
	var getUTCMinutes = uncurryThis(DatePrototype.getUTCMinutes);
	var getUTCMonth = uncurryThis(DatePrototype.getUTCMonth);
	var getUTCSeconds = uncurryThis(DatePrototype.getUTCSeconds);

	// `Date.prototype.toISOString` method implementation
	// https://tc39.es/ecma262/#sec-date.prototype.toisostring
	// PhantomJS / old WebKit fails here:
	dateToIsoString = (fails(function () {
	  return nativeDateToISOString.call(new Date(-5e13 - 1)) !== '0385-07-25T07:06:39.999Z';
	}) || !fails(function () {
	  nativeDateToISOString.call(new Date(NaN));
	})) ? function toISOString() {
	  if (!$isFinite(thisTimeValue(this))) throw new $RangeError('Invalid time value');
	  var date = this;
	  var year = getUTCFullYear(date);
	  var milliseconds = getUTCMilliseconds(date);
	  var sign = year < 0 ? '-' : year > 9999 ? '+' : '';
	  return sign + padStart(abs(year), sign ? 6 : 4, 0) +
	    '-' + padStart(getUTCMonth(date) + 1, 2, 0) +
	    '-' + padStart(getUTCDate(date), 2, 0) +
	    'T' + padStart(getUTCHours(date), 2, 0) +
	    ':' + padStart(getUTCMinutes(date), 2, 0) +
	    ':' + padStart(getUTCSeconds(date), 2, 0) +
	    '.' + padStart(milliseconds, 3, 0) +
	    'Z';
	} : nativeDateToISOString;
	return dateToIsoString;
}

var hasRequiredEs_date_toJson;

function requireEs_date_toJson () {
	if (hasRequiredEs_date_toJson) return es_date_toJson;
	hasRequiredEs_date_toJson = 1;
	var $ = /*@__PURE__*/ require_export();
	var call = /*@__PURE__*/ requireFunctionCall();
	var toObject = /*@__PURE__*/ requireToObject();
	var toPrimitive = /*@__PURE__*/ requireToPrimitive();
	var toISOString = /*@__PURE__*/ requireDateToIsoString();
	var classof = /*@__PURE__*/ requireClassofRaw();
	var fails = /*@__PURE__*/ requireFails();

	var FORCED = fails(function () {
	  return new Date(NaN).toJSON() !== null
	    || call(Date.prototype.toJSON, { toISOString: function () { return 1; } }) !== 1;
	});

	// `Date.prototype.toJSON` method
	// https://tc39.es/ecma262/#sec-date.prototype.tojson
	$({ target: 'Date', proto: true, forced: FORCED }, {
	  // eslint-disable-next-line no-unused-vars -- required for `.length`
	  toJSON: function toJSON(key) {
	    var O = toObject(this);
	    var pv = toPrimitive(O, 'number');
	    return typeof pv == 'number' && !isFinite(pv) ? null :
	      (!('toISOString' in O) && classof(O) === 'Date') ? call(toISOString, O) : O.toISOString();
	  }
	});
	return es_date_toJson;
}

var stringify$2;
var hasRequiredStringify$2;

function requireStringify$2 () {
	if (hasRequiredStringify$2) return stringify$2;
	hasRequiredStringify$2 = 1;
	requireEs_date_toJson();
	requireEs_json_stringify();
	var path = /*@__PURE__*/ requirePath();
	var apply = /*@__PURE__*/ requireFunctionApply();

	// eslint-disable-next-line es/no-json -- safe
	if (!path.JSON) path.JSON = { stringify: JSON.stringify };

	// eslint-disable-next-line no-unused-vars -- required for `.length`
	stringify$2 = function stringify(it, replacer, space) {
	  return apply(path.JSON.stringify, null, arguments);
	};
	return stringify$2;
}

var stringify$1;
var hasRequiredStringify$1;

function requireStringify$1 () {
	if (hasRequiredStringify$1) return stringify$1;
	hasRequiredStringify$1 = 1;
	var parent = /*@__PURE__*/ requireStringify$2();

	stringify$1 = parent;
	return stringify$1;
}

var stringify;
var hasRequiredStringify;

function requireStringify () {
	if (hasRequiredStringify) return stringify;
	hasRequiredStringify = 1;
	stringify = /*@__PURE__*/ requireStringify$1();
	return stringify;
}

var stringifyExports = requireStringify();
var _JSON$stringify = /*@__PURE__*/getDefaultExportFromCjs(stringifyExports);

/*! Hammer.JS - v2.0.17-rc - 2019-12-16
 * http://naver.github.io/egjs
 *
 * Forked By Naver egjs
 * Copyright (c) hammerjs
 * Licensed under the MIT license */
function _extends() {
  _extends = Object.assign || function (target) {
    for (var i = 1; i < arguments.length; i++) {
      var source = arguments[i];

      for (var key in source) {
        if (Object.prototype.hasOwnProperty.call(source, key)) {
          target[key] = source[key];
        }
      }
    }

    return target;
  };

  return _extends.apply(this, arguments);
}

function _inheritsLoose(subClass, superClass) {
  subClass.prototype = Object.create(superClass.prototype);
  subClass.prototype.constructor = subClass;
  subClass.__proto__ = superClass;
}

function _assertThisInitialized(self) {
  if (self === void 0) {
    throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
  }

  return self;
}

/**
 * @private
 * extend object.
 * means that properties in dest will be overwritten by the ones in src.
 * @param {Object} target
 * @param {...Object} objects_to_assign
 * @returns {Object} target
 */
var assign;

if (typeof Object.assign !== 'function') {
  assign = function assign(target) {
    if (target === undefined || target === null) {
      throw new TypeError('Cannot convert undefined or null to object');
    }

    var output = Object(target);

    for (var index = 1; index < arguments.length; index++) {
      var source = arguments[index];

      if (source !== undefined && source !== null) {
        for (var nextKey in source) {
          if (source.hasOwnProperty(nextKey)) {
            output[nextKey] = source[nextKey];
          }
        }
      }
    }

    return output;
  };
} else {
  assign = Object.assign;
}

var assign$1 = assign;

var VENDOR_PREFIXES = ['', 'webkit', 'Moz', 'MS', 'ms', 'o'];
var TEST_ELEMENT = typeof document === "undefined" ? {
  style: {}
} : document.createElement('div');
var TYPE_FUNCTION = 'function';
var round = Math.round,
    abs = Math.abs;
var now = Date.now;

/**
 * @private
 * get the prefixed property
 * @param {Object} obj
 * @param {String} property
 * @returns {String|Undefined} prefixed
 */

function prefixed(obj, property) {
  var prefix;
  var prop;
  var camelProp = property[0].toUpperCase() + property.slice(1);
  var i = 0;

  while (i < VENDOR_PREFIXES.length) {
    prefix = VENDOR_PREFIXES[i];
    prop = prefix ? prefix + camelProp : property;

    if (prop in obj) {
      return prop;
    }

    i++;
  }

  return undefined;
}

/* eslint-disable no-new-func, no-nested-ternary */
var win;

if (typeof window === "undefined") {
  // window is undefined in node.js
  win = {};
} else {
  win = window;
}

var PREFIXED_TOUCH_ACTION = prefixed(TEST_ELEMENT.style, 'touchAction');
var NATIVE_TOUCH_ACTION = PREFIXED_TOUCH_ACTION !== undefined;
function getTouchActionProps() {
  if (!NATIVE_TOUCH_ACTION) {
    return false;
  }

  var touchMap = {};
  var cssSupports = win.CSS && win.CSS.supports;
  ['auto', 'manipulation', 'pan-y', 'pan-x', 'pan-x pan-y', 'none'].forEach(function (val) {
    // If css.supports is not supported but there is native touch-action assume it supports
    // all values. This is the case for IE 10 and 11.
    return touchMap[val] = cssSupports ? win.CSS.supports('touch-action', val) : true;
  });
  return touchMap;
}

var TOUCH_ACTION_COMPUTE = 'compute';
var TOUCH_ACTION_AUTO = 'auto';
var TOUCH_ACTION_MANIPULATION = 'manipulation'; // not implemented

var TOUCH_ACTION_NONE = 'none';
var TOUCH_ACTION_PAN_X = 'pan-x';
var TOUCH_ACTION_PAN_Y = 'pan-y';
var TOUCH_ACTION_MAP = getTouchActionProps();

var MOBILE_REGEX = /mobile|tablet|ip(ad|hone|od)|android/i;
var SUPPORT_TOUCH = 'ontouchstart' in win;
var SUPPORT_POINTER_EVENTS = prefixed(win, 'PointerEvent') !== undefined;
var SUPPORT_ONLY_TOUCH = SUPPORT_TOUCH && MOBILE_REGEX.test(navigator.userAgent);
var INPUT_TYPE_TOUCH = 'touch';
var INPUT_TYPE_PEN = 'pen';
var INPUT_TYPE_MOUSE = 'mouse';
var INPUT_TYPE_KINECT = 'kinect';
var COMPUTE_INTERVAL = 25;
var INPUT_START = 1;
var INPUT_MOVE = 2;
var INPUT_END = 4;
var INPUT_CANCEL = 8;
var DIRECTION_NONE = 1;
var DIRECTION_LEFT = 2;
var DIRECTION_RIGHT = 4;
var DIRECTION_UP = 8;
var DIRECTION_DOWN = 16;
var DIRECTION_HORIZONTAL = DIRECTION_LEFT | DIRECTION_RIGHT;
var DIRECTION_VERTICAL = DIRECTION_UP | DIRECTION_DOWN;
var DIRECTION_ALL = DIRECTION_HORIZONTAL | DIRECTION_VERTICAL;
var PROPS_XY = ['x', 'y'];
var PROPS_CLIENT_XY = ['clientX', 'clientY'];

/**
 * @private
 * walk objects and arrays
 * @param {Object} obj
 * @param {Function} iterator
 * @param {Object} context
 */
function each(obj, iterator, context) {
  var i;

  if (!obj) {
    return;
  }

  if (obj.forEach) {
    obj.forEach(iterator, context);
  } else if (obj.length !== undefined) {
    i = 0;

    while (i < obj.length) {
      iterator.call(context, obj[i], i, obj);
      i++;
    }
  } else {
    for (i in obj) {
      obj.hasOwnProperty(i) && iterator.call(context, obj[i], i, obj);
    }
  }
}

/**
 * @private
 * let a boolean value also be a function that must return a boolean
 * this first item in args will be used as the context
 * @param {Boolean|Function} val
 * @param {Array} [args]
 * @returns {Boolean}
 */

function boolOrFn(val, args) {
  if (typeof val === TYPE_FUNCTION) {
    return val.apply(args ? args[0] || undefined : undefined, args);
  }

  return val;
}

/**
 * @private
 * small indexOf wrapper
 * @param {String} str
 * @param {String} find
 * @returns {Boolean} found
 */
function inStr(str, find) {
  return str.indexOf(find) > -1;
}

/**
 * @private
 * when the touchActions are collected they are not a valid value, so we need to clean things up. *
 * @param {String} actions
 * @returns {*}
 */

function cleanTouchActions(actions) {
  // none
  if (inStr(actions, TOUCH_ACTION_NONE)) {
    return TOUCH_ACTION_NONE;
  }

  var hasPanX = inStr(actions, TOUCH_ACTION_PAN_X);
  var hasPanY = inStr(actions, TOUCH_ACTION_PAN_Y); // if both pan-x and pan-y are set (different recognizers
  // for different directions, e.g. horizontal pan but vertical swipe?)
  // we need none (as otherwise with pan-x pan-y combined none of these
  // recognizers will work, since the browser would handle all panning

  if (hasPanX && hasPanY) {
    return TOUCH_ACTION_NONE;
  } // pan-x OR pan-y


  if (hasPanX || hasPanY) {
    return hasPanX ? TOUCH_ACTION_PAN_X : TOUCH_ACTION_PAN_Y;
  } // manipulation


  if (inStr(actions, TOUCH_ACTION_MANIPULATION)) {
    return TOUCH_ACTION_MANIPULATION;
  }

  return TOUCH_ACTION_AUTO;
}

/**
 * @private
 * Touch Action
 * sets the touchAction property or uses the js alternative
 * @param {Manager} manager
 * @param {String} value
 * @constructor
 */

var TouchAction =
/*#__PURE__*/
function () {
  function TouchAction(manager, value) {
    this.manager = manager;
    this.set(value);
  }
  /**
   * @private
   * set the touchAction value on the element or enable the polyfill
   * @param {String} value
   */


  var _proto = TouchAction.prototype;

  _proto.set = function set(value) {
    // find out the touch-action by the event handlers
    if (value === TOUCH_ACTION_COMPUTE) {
      value = this.compute();
    }

    if (NATIVE_TOUCH_ACTION && this.manager.element.style && TOUCH_ACTION_MAP[value]) {
      this.manager.element.style[PREFIXED_TOUCH_ACTION] = value;
    }

    this.actions = value.toLowerCase().trim();
  };
  /**
   * @private
   * just re-set the touchAction value
   */


  _proto.update = function update() {
    this.set(this.manager.options.touchAction);
  };
  /**
   * @private
   * compute the value for the touchAction property based on the recognizer's settings
   * @returns {String} value
   */


  _proto.compute = function compute() {
    var actions = [];
    each(this.manager.recognizers, function (recognizer) {
      if (boolOrFn(recognizer.options.enable, [recognizer])) {
        actions = actions.concat(recognizer.getTouchAction());
      }
    });
    return cleanTouchActions(actions.join(' '));
  };
  /**
   * @private
   * this method is called on each input cycle and provides the preventing of the browser behavior
   * @param {Object} input
   */


  _proto.preventDefaults = function preventDefaults(input) {
    var srcEvent = input.srcEvent;
    var direction = input.offsetDirection; // if the touch action did prevented once this session

    if (this.manager.session.prevented) {
      srcEvent.preventDefault();
      return;
    }

    var actions = this.actions;
    var hasNone = inStr(actions, TOUCH_ACTION_NONE) && !TOUCH_ACTION_MAP[TOUCH_ACTION_NONE];
    var hasPanY = inStr(actions, TOUCH_ACTION_PAN_Y) && !TOUCH_ACTION_MAP[TOUCH_ACTION_PAN_Y];
    var hasPanX = inStr(actions, TOUCH_ACTION_PAN_X) && !TOUCH_ACTION_MAP[TOUCH_ACTION_PAN_X];

    if (hasNone) {
      // do not prevent defaults if this is a tap gesture
      var isTapPointer = input.pointers.length === 1;
      var isTapMovement = input.distance < 2;
      var isTapTouchTime = input.deltaTime < 250;

      if (isTapPointer && isTapMovement && isTapTouchTime) {
        return;
      }
    }

    if (hasPanX && hasPanY) {
      // `pan-x pan-y` means browser handles all scrolling/panning, do not prevent
      return;
    }

    if (hasNone || hasPanY && direction & DIRECTION_HORIZONTAL || hasPanX && direction & DIRECTION_VERTICAL) {
      return this.preventSrc(srcEvent);
    }
  };
  /**
   * @private
   * call preventDefault to prevent the browser's default behavior (scrolling in most cases)
   * @param {Object} srcEvent
   */


  _proto.preventSrc = function preventSrc(srcEvent) {
    this.manager.session.prevented = true;
    srcEvent.preventDefault();
  };

  return TouchAction;
}();

/**
 * @private
 * find if a node is in the given parent
 * @method hasParent
 * @param {HTMLElement} node
 * @param {HTMLElement} parent
 * @return {Boolean} found
 */
function hasParent(node, parent) {
  while (node) {
    if (node === parent) {
      return true;
    }

    node = node.parentNode;
  }

  return false;
}

/**
 * @private
 * get the center of all the pointers
 * @param {Array} pointers
 * @return {Object} center contains `x` and `y` properties
 */

function getCenter(pointers) {
  var pointersLength = pointers.length; // no need to loop when only one touch

  if (pointersLength === 1) {
    return {
      x: round(pointers[0].clientX),
      y: round(pointers[0].clientY)
    };
  }

  var x = 0;
  var y = 0;
  var i = 0;

  while (i < pointersLength) {
    x += pointers[i].clientX;
    y += pointers[i].clientY;
    i++;
  }

  return {
    x: round(x / pointersLength),
    y: round(y / pointersLength)
  };
}

/**
 * @private
 * create a simple clone from the input used for storage of firstInput and firstMultiple
 * @param {Object} input
 * @returns {Object} clonedInputData
 */

function simpleCloneInputData(input) {
  // make a simple copy of the pointers because we will get a reference if we don't
  // we only need clientXY for the calculations
  var pointers = [];
  var i = 0;

  while (i < input.pointers.length) {
    pointers[i] = {
      clientX: round(input.pointers[i].clientX),
      clientY: round(input.pointers[i].clientY)
    };
    i++;
  }

  return {
    timeStamp: now(),
    pointers: pointers,
    center: getCenter(pointers),
    deltaX: input.deltaX,
    deltaY: input.deltaY
  };
}

/**
 * @private
 * calculate the absolute distance between two points
 * @param {Object} p1 {x, y}
 * @param {Object} p2 {x, y}
 * @param {Array} [props] containing x and y keys
 * @return {Number} distance
 */

function getDistance(p1, p2, props) {
  if (!props) {
    props = PROPS_XY;
  }

  var x = p2[props[0]] - p1[props[0]];
  var y = p2[props[1]] - p1[props[1]];
  return Math.sqrt(x * x + y * y);
}

/**
 * @private
 * calculate the angle between two coordinates
 * @param {Object} p1
 * @param {Object} p2
 * @param {Array} [props] containing x and y keys
 * @return {Number} angle
 */

function getAngle(p1, p2, props) {
  if (!props) {
    props = PROPS_XY;
  }

  var x = p2[props[0]] - p1[props[0]];
  var y = p2[props[1]] - p1[props[1]];
  return Math.atan2(y, x) * 180 / Math.PI;
}

/**
 * @private
 * get the direction between two points
 * @param {Number} x
 * @param {Number} y
 * @return {Number} direction
 */

function getDirection(x, y) {
  if (x === y) {
    return DIRECTION_NONE;
  }

  if (abs(x) >= abs(y)) {
    return x < 0 ? DIRECTION_LEFT : DIRECTION_RIGHT;
  }

  return y < 0 ? DIRECTION_UP : DIRECTION_DOWN;
}

function computeDeltaXY(session, input) {
  var center = input.center; // let { offsetDelta:offset = {}, prevDelta = {}, prevInput = {} } = session;
  // jscs throwing error on defalut destructured values and without defaults tests fail

  var offset = session.offsetDelta || {};
  var prevDelta = session.prevDelta || {};
  var prevInput = session.prevInput || {};

  if (input.eventType === INPUT_START || prevInput.eventType === INPUT_END) {
    prevDelta = session.prevDelta = {
      x: prevInput.deltaX || 0,
      y: prevInput.deltaY || 0
    };
    offset = session.offsetDelta = {
      x: center.x,
      y: center.y
    };
  }

  input.deltaX = prevDelta.x + (center.x - offset.x);
  input.deltaY = prevDelta.y + (center.y - offset.y);
}

/**
 * @private
 * calculate the velocity between two points. unit is in px per ms.
 * @param {Number} deltaTime
 * @param {Number} x
 * @param {Number} y
 * @return {Object} velocity `x` and `y`
 */
function getVelocity(deltaTime, x, y) {
  return {
    x: x / deltaTime || 0,
    y: y / deltaTime || 0
  };
}

/**
 * @private
 * calculate the scale factor between two pointersets
 * no scale is 1, and goes down to 0 when pinched together, and bigger when pinched out
 * @param {Array} start array of pointers
 * @param {Array} end array of pointers
 * @return {Number} scale
 */

function getScale(start, end) {
  return getDistance(end[0], end[1], PROPS_CLIENT_XY) / getDistance(start[0], start[1], PROPS_CLIENT_XY);
}

/**
 * @private
 * calculate the rotation degrees between two pointersets
 * @param {Array} start array of pointers
 * @param {Array} end array of pointers
 * @return {Number} rotation
 */

function getRotation(start, end) {
  return getAngle(end[1], end[0], PROPS_CLIENT_XY) + getAngle(start[1], start[0], PROPS_CLIENT_XY);
}

/**
 * @private
 * velocity is calculated every x ms
 * @param {Object} session
 * @param {Object} input
 */

function computeIntervalInputData(session, input) {
  var last = session.lastInterval || input;
  var deltaTime = input.timeStamp - last.timeStamp;
  var velocity;
  var velocityX;
  var velocityY;
  var direction;

  if (input.eventType !== INPUT_CANCEL && (deltaTime > COMPUTE_INTERVAL || last.velocity === undefined)) {
    var deltaX = input.deltaX - last.deltaX;
    var deltaY = input.deltaY - last.deltaY;
    var v = getVelocity(deltaTime, deltaX, deltaY);
    velocityX = v.x;
    velocityY = v.y;
    velocity = abs(v.x) > abs(v.y) ? v.x : v.y;
    direction = getDirection(deltaX, deltaY);
    session.lastInterval = input;
  } else {
    // use latest velocity info if it doesn't overtake a minimum period
    velocity = last.velocity;
    velocityX = last.velocityX;
    velocityY = last.velocityY;
    direction = last.direction;
  }

  input.velocity = velocity;
  input.velocityX = velocityX;
  input.velocityY = velocityY;
  input.direction = direction;
}

/**
* @private
 * extend the data with some usable properties like scale, rotate, velocity etc
 * @param {Object} manager
 * @param {Object} input
 */

function computeInputData(manager, input) {
  var session = manager.session;
  var pointers = input.pointers;
  var pointersLength = pointers.length; // store the first input to calculate the distance and direction

  if (!session.firstInput) {
    session.firstInput = simpleCloneInputData(input);
  } // to compute scale and rotation we need to store the multiple touches


  if (pointersLength > 1 && !session.firstMultiple) {
    session.firstMultiple = simpleCloneInputData(input);
  } else if (pointersLength === 1) {
    session.firstMultiple = false;
  }

  var firstInput = session.firstInput,
      firstMultiple = session.firstMultiple;
  var offsetCenter = firstMultiple ? firstMultiple.center : firstInput.center;
  var center = input.center = getCenter(pointers);
  input.timeStamp = now();
  input.deltaTime = input.timeStamp - firstInput.timeStamp;
  input.angle = getAngle(offsetCenter, center);
  input.distance = getDistance(offsetCenter, center);
  computeDeltaXY(session, input);
  input.offsetDirection = getDirection(input.deltaX, input.deltaY);
  var overallVelocity = getVelocity(input.deltaTime, input.deltaX, input.deltaY);
  input.overallVelocityX = overallVelocity.x;
  input.overallVelocityY = overallVelocity.y;
  input.overallVelocity = abs(overallVelocity.x) > abs(overallVelocity.y) ? overallVelocity.x : overallVelocity.y;
  input.scale = firstMultiple ? getScale(firstMultiple.pointers, pointers) : 1;
  input.rotation = firstMultiple ? getRotation(firstMultiple.pointers, pointers) : 0;
  input.maxPointers = !session.prevInput ? input.pointers.length : input.pointers.length > session.prevInput.maxPointers ? input.pointers.length : session.prevInput.maxPointers;
  computeIntervalInputData(session, input); // find the correct target

  var target = manager.element;
  var srcEvent = input.srcEvent;
  var srcEventTarget;

  if (srcEvent.composedPath) {
    srcEventTarget = srcEvent.composedPath()[0];
  } else if (srcEvent.path) {
    srcEventTarget = srcEvent.path[0];
  } else {
    srcEventTarget = srcEvent.target;
  }

  if (hasParent(srcEventTarget, target)) {
    target = srcEventTarget;
  }

  input.target = target;
}

/**
 * @private
 * handle input events
 * @param {Manager} manager
 * @param {String} eventType
 * @param {Object} input
 */

function inputHandler(manager, eventType, input) {
  var pointersLen = input.pointers.length;
  var changedPointersLen = input.changedPointers.length;
  var isFirst = eventType & INPUT_START && pointersLen - changedPointersLen === 0;
  var isFinal = eventType & (INPUT_END | INPUT_CANCEL) && pointersLen - changedPointersLen === 0;
  input.isFirst = !!isFirst;
  input.isFinal = !!isFinal;

  if (isFirst) {
    manager.session = {};
  } // source event is the normalized value of the domEvents
  // like 'touchstart, mouseup, pointerdown'


  input.eventType = eventType; // compute scale, rotation etc

  computeInputData(manager, input); // emit secret event

  manager.emit('hammer.input', input);
  manager.recognize(input);
  manager.session.prevInput = input;
}

/**
 * @private
 * split string on whitespace
 * @param {String} str
 * @returns {Array} words
 */
function splitStr(str) {
  return str.trim().split(/\s+/g);
}

/**
 * @private
 * addEventListener with multiple events at once
 * @param {EventTarget} target
 * @param {String} types
 * @param {Function} handler
 */

function addEventListeners(target, types, handler) {
  each(splitStr(types), function (type) {
    target.addEventListener(type, handler, false);
  });
}

/**
 * @private
 * removeEventListener with multiple events at once
 * @param {EventTarget} target
 * @param {String} types
 * @param {Function} handler
 */

function removeEventListeners(target, types, handler) {
  each(splitStr(types), function (type) {
    target.removeEventListener(type, handler, false);
  });
}

/**
 * @private
 * get the window object of an element
 * @param {HTMLElement} element
 * @returns {DocumentView|Window}
 */
function getWindowForElement(element) {
  var doc = element.ownerDocument || element;
  return doc.defaultView || doc.parentWindow || window;
}

/**
 * @private
 * create new input type manager
 * @param {Manager} manager
 * @param {Function} callback
 * @returns {Input}
 * @constructor
 */

var Input =
/*#__PURE__*/
function () {
  function Input(manager, callback) {
    var self = this;
    this.manager = manager;
    this.callback = callback;
    this.element = manager.element;
    this.target = manager.options.inputTarget; // smaller wrapper around the handler, for the scope and the enabled state of the manager,
    // so when disabled the input events are completely bypassed.

    this.domHandler = function (ev) {
      if (boolOrFn(manager.options.enable, [manager])) {
        self.handler(ev);
      }
    };

    this.init();
  }
  /**
   * @private
   * should handle the inputEvent data and trigger the callback
   * @virtual
   */


  var _proto = Input.prototype;

  _proto.handler = function handler() {};
  /**
   * @private
   * bind the events
   */


  _proto.init = function init() {
    this.evEl && addEventListeners(this.element, this.evEl, this.domHandler);
    this.evTarget && addEventListeners(this.target, this.evTarget, this.domHandler);
    this.evWin && addEventListeners(getWindowForElement(this.element), this.evWin, this.domHandler);
  };
  /**
   * @private
   * unbind the events
   */


  _proto.destroy = function destroy() {
    this.evEl && removeEventListeners(this.element, this.evEl, this.domHandler);
    this.evTarget && removeEventListeners(this.target, this.evTarget, this.domHandler);
    this.evWin && removeEventListeners(getWindowForElement(this.element), this.evWin, this.domHandler);
  };

  return Input;
}();

/**
 * @private
 * find if a array contains the object using indexOf or a simple polyFill
 * @param {Array} src
 * @param {String} find
 * @param {String} [findByKey]
 * @return {Boolean|Number} false when not found, or the index
 */
function inArray(src, find, findByKey) {
  if (src.indexOf && !findByKey) {
    return src.indexOf(find);
  } else {
    var i = 0;

    while (i < src.length) {
      if (findByKey && src[i][findByKey] == find || !findByKey && src[i] === find) {
        // do not use === here, test fails
        return i;
      }

      i++;
    }

    return -1;
  }
}

var POINTER_INPUT_MAP = {
  pointerdown: INPUT_START,
  pointermove: INPUT_MOVE,
  pointerup: INPUT_END,
  pointercancel: INPUT_CANCEL,
  pointerout: INPUT_CANCEL
}; // in IE10 the pointer types is defined as an enum

var IE10_POINTER_TYPE_ENUM = {
  2: INPUT_TYPE_TOUCH,
  3: INPUT_TYPE_PEN,
  4: INPUT_TYPE_MOUSE,
  5: INPUT_TYPE_KINECT // see https://twitter.com/jacobrossi/status/480596438489890816

};
var POINTER_ELEMENT_EVENTS = 'pointerdown';
var POINTER_WINDOW_EVENTS = 'pointermove pointerup pointercancel'; // IE10 has prefixed support, and case-sensitive

if (win.MSPointerEvent && !win.PointerEvent) {
  POINTER_ELEMENT_EVENTS = 'MSPointerDown';
  POINTER_WINDOW_EVENTS = 'MSPointerMove MSPointerUp MSPointerCancel';
}
/**
 * @private
 * Pointer events input
 * @constructor
 * @extends Input
 */


var PointerEventInput =
/*#__PURE__*/
function (_Input) {
  _inheritsLoose(PointerEventInput, _Input);

  function PointerEventInput() {
    var _this;

    var proto = PointerEventInput.prototype;
    proto.evEl = POINTER_ELEMENT_EVENTS;
    proto.evWin = POINTER_WINDOW_EVENTS;
    _this = _Input.apply(this, arguments) || this;
    _this.store = _this.manager.session.pointerEvents = [];
    return _this;
  }
  /**
   * @private
   * handle mouse events
   * @param {Object} ev
   */


  var _proto = PointerEventInput.prototype;

  _proto.handler = function handler(ev) {
    var store = this.store;
    var removePointer = false;
    var eventTypeNormalized = ev.type.toLowerCase().replace('ms', '');
    var eventType = POINTER_INPUT_MAP[eventTypeNormalized];
    var pointerType = IE10_POINTER_TYPE_ENUM[ev.pointerType] || ev.pointerType;
    var isTouch = pointerType === INPUT_TYPE_TOUCH; // get index of the event in the store

    var storeIndex = inArray(store, ev.pointerId, 'pointerId'); // start and mouse must be down

    if (eventType & INPUT_START && (ev.button === 0 || isTouch)) {
      if (storeIndex < 0) {
        store.push(ev);
        storeIndex = store.length - 1;
      }
    } else if (eventType & (INPUT_END | INPUT_CANCEL)) {
      removePointer = true;
    } // it not found, so the pointer hasn't been down (so it's probably a hover)


    if (storeIndex < 0) {
      return;
    } // update the event in the store


    store[storeIndex] = ev;
    this.callback(this.manager, eventType, {
      pointers: store,
      changedPointers: [ev],
      pointerType: pointerType,
      srcEvent: ev
    });

    if (removePointer) {
      // remove from the store
      store.splice(storeIndex, 1);
    }
  };

  return PointerEventInput;
}(Input);

/**
 * @private
 * convert array-like objects to real arrays
 * @param {Object} obj
 * @returns {Array}
 */
function toArray(obj) {
  return Array.prototype.slice.call(obj, 0);
}

/**
 * @private
 * unique array with objects based on a key (like 'id') or just by the array's value
 * @param {Array} src [{id:1},{id:2},{id:1}]
 * @param {String} [key]
 * @param {Boolean} [sort=False]
 * @returns {Array} [{id:1},{id:2}]
 */

function uniqueArray(src, key, sort) {
  var results = [];
  var values = [];
  var i = 0;

  while (i < src.length) {
    var val = key ? src[i][key] : src[i];

    if (inArray(values, val) < 0) {
      results.push(src[i]);
    }

    values[i] = val;
    i++;
  }

  if (sort) {
    if (!key) {
      results = results.sort();
    } else {
      results = results.sort(function (a, b) {
        return a[key] > b[key];
      });
    }
  }

  return results;
}

var TOUCH_INPUT_MAP = {
  touchstart: INPUT_START,
  touchmove: INPUT_MOVE,
  touchend: INPUT_END,
  touchcancel: INPUT_CANCEL
};
var TOUCH_TARGET_EVENTS = 'touchstart touchmove touchend touchcancel';
/**
 * @private
 * Multi-user touch events input
 * @constructor
 * @extends Input
 */

var TouchInput =
/*#__PURE__*/
function (_Input) {
  _inheritsLoose(TouchInput, _Input);

  function TouchInput() {
    var _this;

    TouchInput.prototype.evTarget = TOUCH_TARGET_EVENTS;
    _this = _Input.apply(this, arguments) || this;
    _this.targetIds = {}; // this.evTarget = TOUCH_TARGET_EVENTS;

    return _this;
  }

  var _proto = TouchInput.prototype;

  _proto.handler = function handler(ev) {
    var type = TOUCH_INPUT_MAP[ev.type];
    var touches = getTouches.call(this, ev, type);

    if (!touches) {
      return;
    }

    this.callback(this.manager, type, {
      pointers: touches[0],
      changedPointers: touches[1],
      pointerType: INPUT_TYPE_TOUCH,
      srcEvent: ev
    });
  };

  return TouchInput;
}(Input);

function getTouches(ev, type) {
  var allTouches = toArray(ev.touches);
  var targetIds = this.targetIds; // when there is only one touch, the process can be simplified

  if (type & (INPUT_START | INPUT_MOVE) && allTouches.length === 1) {
    targetIds[allTouches[0].identifier] = true;
    return [allTouches, allTouches];
  }

  var i;
  var targetTouches;
  var changedTouches = toArray(ev.changedTouches);
  var changedTargetTouches = [];
  var target = this.target; // get target touches from touches

  targetTouches = allTouches.filter(function (touch) {
    return hasParent(touch.target, target);
  }); // collect touches

  if (type === INPUT_START) {
    i = 0;

    while (i < targetTouches.length) {
      targetIds[targetTouches[i].identifier] = true;
      i++;
    }
  } // filter changed touches to only contain touches that exist in the collected target ids


  i = 0;

  while (i < changedTouches.length) {
    if (targetIds[changedTouches[i].identifier]) {
      changedTargetTouches.push(changedTouches[i]);
    } // cleanup removed touches


    if (type & (INPUT_END | INPUT_CANCEL)) {
      delete targetIds[changedTouches[i].identifier];
    }

    i++;
  }

  if (!changedTargetTouches.length) {
    return;
  }

  return [// merge targetTouches with changedTargetTouches so it contains ALL touches, including 'end' and 'cancel'
  uniqueArray(targetTouches.concat(changedTargetTouches), 'identifier', true), changedTargetTouches];
}

var MOUSE_INPUT_MAP = {
  mousedown: INPUT_START,
  mousemove: INPUT_MOVE,
  mouseup: INPUT_END
};
var MOUSE_ELEMENT_EVENTS = 'mousedown';
var MOUSE_WINDOW_EVENTS = 'mousemove mouseup';
/**
 * @private
 * Mouse events input
 * @constructor
 * @extends Input
 */

var MouseInput =
/*#__PURE__*/
function (_Input) {
  _inheritsLoose(MouseInput, _Input);

  function MouseInput() {
    var _this;

    var proto = MouseInput.prototype;
    proto.evEl = MOUSE_ELEMENT_EVENTS;
    proto.evWin = MOUSE_WINDOW_EVENTS;
    _this = _Input.apply(this, arguments) || this;
    _this.pressed = false; // mousedown state

    return _this;
  }
  /**
   * @private
   * handle mouse events
   * @param {Object} ev
   */


  var _proto = MouseInput.prototype;

  _proto.handler = function handler(ev) {
    var eventType = MOUSE_INPUT_MAP[ev.type]; // on start we want to have the left mouse button down

    if (eventType & INPUT_START && ev.button === 0) {
      this.pressed = true;
    }

    if (eventType & INPUT_MOVE && ev.which !== 1) {
      eventType = INPUT_END;
    } // mouse must be down


    if (!this.pressed) {
      return;
    }

    if (eventType & INPUT_END) {
      this.pressed = false;
    }

    this.callback(this.manager, eventType, {
      pointers: [ev],
      changedPointers: [ev],
      pointerType: INPUT_TYPE_MOUSE,
      srcEvent: ev
    });
  };

  return MouseInput;
}(Input);

/**
 * @private
 * Combined touch and mouse input
 *
 * Touch has a higher priority then mouse, and while touching no mouse events are allowed.
 * This because touch devices also emit mouse events while doing a touch.
 *
 * @constructor
 * @extends Input
 */

var DEDUP_TIMEOUT = 2500;
var DEDUP_DISTANCE = 25;

function setLastTouch(eventData) {
  var _eventData$changedPoi = eventData.changedPointers,
      touch = _eventData$changedPoi[0];

  if (touch.identifier === this.primaryTouch) {
    var lastTouch = {
      x: touch.clientX,
      y: touch.clientY
    };
    var lts = this.lastTouches;
    this.lastTouches.push(lastTouch);

    var removeLastTouch = function removeLastTouch() {
      var i = lts.indexOf(lastTouch);

      if (i > -1) {
        lts.splice(i, 1);
      }
    };

    setTimeout(removeLastTouch, DEDUP_TIMEOUT);
  }
}

function recordTouches(eventType, eventData) {
  if (eventType & INPUT_START) {
    this.primaryTouch = eventData.changedPointers[0].identifier;
    setLastTouch.call(this, eventData);
  } else if (eventType & (INPUT_END | INPUT_CANCEL)) {
    setLastTouch.call(this, eventData);
  }
}

function isSyntheticEvent(eventData) {
  var x = eventData.srcEvent.clientX;
  var y = eventData.srcEvent.clientY;

  for (var i = 0; i < this.lastTouches.length; i++) {
    var t = this.lastTouches[i];
    var dx = Math.abs(x - t.x);
    var dy = Math.abs(y - t.y);

    if (dx <= DEDUP_DISTANCE && dy <= DEDUP_DISTANCE) {
      return true;
    }
  }

  return false;
}

var TouchMouseInput =
/*#__PURE__*/
function () {
  var TouchMouseInput =
  /*#__PURE__*/
  function (_Input) {
    _inheritsLoose(TouchMouseInput, _Input);

    function TouchMouseInput(_manager, callback) {
      var _this;

      _this = _Input.call(this, _manager, callback) || this;

      _this.handler = function (manager, inputEvent, inputData) {
        var isTouch = inputData.pointerType === INPUT_TYPE_TOUCH;
        var isMouse = inputData.pointerType === INPUT_TYPE_MOUSE;

        if (isMouse && inputData.sourceCapabilities && inputData.sourceCapabilities.firesTouchEvents) {
          return;
        } // when we're in a touch event, record touches to  de-dupe synthetic mouse event


        if (isTouch) {
          recordTouches.call(_assertThisInitialized(_assertThisInitialized(_this)), inputEvent, inputData);
        } else if (isMouse && isSyntheticEvent.call(_assertThisInitialized(_assertThisInitialized(_this)), inputData)) {
          return;
        }

        _this.callback(manager, inputEvent, inputData);
      };

      _this.touch = new TouchInput(_this.manager, _this.handler);
      _this.mouse = new MouseInput(_this.manager, _this.handler);
      _this.primaryTouch = null;
      _this.lastTouches = [];
      return _this;
    }
    /**
     * @private
     * handle mouse and touch events
     * @param {Hammer} manager
     * @param {String} inputEvent
     * @param {Object} inputData
     */


    var _proto = TouchMouseInput.prototype;

    /**
     * @private
     * remove the event listeners
     */
    _proto.destroy = function destroy() {
      this.touch.destroy();
      this.mouse.destroy();
    };

    return TouchMouseInput;
  }(Input);

  return TouchMouseInput;
}();

/**
 * @private
 * create new input type manager
 * called by the Manager constructor
 * @param {Hammer} manager
 * @returns {Input}
 */

function createInputInstance(manager) {
  var Type; // let inputClass = manager.options.inputClass;

  var inputClass = manager.options.inputClass;

  if (inputClass) {
    Type = inputClass;
  } else if (SUPPORT_POINTER_EVENTS) {
    Type = PointerEventInput;
  } else if (SUPPORT_ONLY_TOUCH) {
    Type = TouchInput;
  } else if (!SUPPORT_TOUCH) {
    Type = MouseInput;
  } else {
    Type = TouchMouseInput;
  }

  return new Type(manager, inputHandler);
}

/**
 * @private
 * if the argument is an array, we want to execute the fn on each entry
 * if it aint an array we don't want to do a thing.
 * this is used by all the methods that accept a single and array argument.
 * @param {*|Array} arg
 * @param {String} fn
 * @param {Object} [context]
 * @returns {Boolean}
 */

function invokeArrayArg(arg, fn, context) {
  if (Array.isArray(arg)) {
    each(arg, context[fn], context);
    return true;
  }

  return false;
}

var STATE_POSSIBLE = 1;
var STATE_BEGAN = 2;
var STATE_CHANGED = 4;
var STATE_ENDED = 8;
var STATE_RECOGNIZED = STATE_ENDED;
var STATE_CANCELLED = 16;
var STATE_FAILED = 32;

/**
 * @private
 * get a unique id
 * @returns {number} uniqueId
 */
var _uniqueId = 1;
function uniqueId() {
  return _uniqueId++;
}

/**
 * @private
 * get a recognizer by name if it is bound to a manager
 * @param {Recognizer|String} otherRecognizer
 * @param {Recognizer} recognizer
 * @returns {Recognizer}
 */
function getRecognizerByNameIfManager(otherRecognizer, recognizer) {
  var manager = recognizer.manager;

  if (manager) {
    return manager.get(otherRecognizer);
  }

  return otherRecognizer;
}

/**
 * @private
 * get a usable string, used as event postfix
 * @param {constant} state
 * @returns {String} state
 */

function stateStr(state) {
  if (state & STATE_CANCELLED) {
    return 'cancel';
  } else if (state & STATE_ENDED) {
    return 'end';
  } else if (state & STATE_CHANGED) {
    return 'move';
  } else if (state & STATE_BEGAN) {
    return 'start';
  }

  return '';
}

/**
 * @private
 * Recognizer flow explained; *
 * All recognizers have the initial state of POSSIBLE when a input session starts.
 * The definition of a input session is from the first input until the last input, with all it's movement in it. *
 * Example session for mouse-input: mousedown -> mousemove -> mouseup
 *
 * On each recognizing cycle (see Manager.recognize) the .recognize() method is executed
 * which determines with state it should be.
 *
 * If the recognizer has the state FAILED, CANCELLED or RECOGNIZED (equals ENDED), it is reset to
 * POSSIBLE to give it another change on the next cycle.
 *
 *               Possible
 *                  |
 *            +-----+---------------+
 *            |                     |
 *      +-----+-----+               |
 *      |           |               |
 *   Failed      Cancelled          |
 *                          +-------+------+
 *                          |              |
 *                      Recognized       Began
 *                                         |
 *                                      Changed
 *                                         |
 *                                  Ended/Recognized
 */

/**
 * @private
 * Recognizer
 * Every recognizer needs to extend from this class.
 * @constructor
 * @param {Object} options
 */

var Recognizer =
/*#__PURE__*/
function () {
  function Recognizer(options) {
    if (options === void 0) {
      options = {};
    }

    this.options = _extends({
      enable: true
    }, options);
    this.id = uniqueId();
    this.manager = null; // default is enable true

    this.state = STATE_POSSIBLE;
    this.simultaneous = {};
    this.requireFail = [];
  }
  /**
   * @private
   * set options
   * @param {Object} options
   * @return {Recognizer}
   */


  var _proto = Recognizer.prototype;

  _proto.set = function set(options) {
    assign$1(this.options, options); // also update the touchAction, in case something changed about the directions/enabled state

    this.manager && this.manager.touchAction.update();
    return this;
  };
  /**
   * @private
   * recognize simultaneous with an other recognizer.
   * @param {Recognizer} otherRecognizer
   * @returns {Recognizer} this
   */


  _proto.recognizeWith = function recognizeWith(otherRecognizer) {
    if (invokeArrayArg(otherRecognizer, 'recognizeWith', this)) {
      return this;
    }

    var simultaneous = this.simultaneous;
    otherRecognizer = getRecognizerByNameIfManager(otherRecognizer, this);

    if (!simultaneous[otherRecognizer.id]) {
      simultaneous[otherRecognizer.id] = otherRecognizer;
      otherRecognizer.recognizeWith(this);
    }

    return this;
  };
  /**
   * @private
   * drop the simultaneous link. it doesnt remove the link on the other recognizer.
   * @param {Recognizer} otherRecognizer
   * @returns {Recognizer} this
   */


  _proto.dropRecognizeWith = function dropRecognizeWith(otherRecognizer) {
    if (invokeArrayArg(otherRecognizer, 'dropRecognizeWith', this)) {
      return this;
    }

    otherRecognizer = getRecognizerByNameIfManager(otherRecognizer, this);
    delete this.simultaneous[otherRecognizer.id];
    return this;
  };
  /**
   * @private
   * recognizer can only run when an other is failing
   * @param {Recognizer} otherRecognizer
   * @returns {Recognizer} this
   */


  _proto.requireFailure = function requireFailure(otherRecognizer) {
    if (invokeArrayArg(otherRecognizer, 'requireFailure', this)) {
      return this;
    }

    var requireFail = this.requireFail;
    otherRecognizer = getRecognizerByNameIfManager(otherRecognizer, this);

    if (inArray(requireFail, otherRecognizer) === -1) {
      requireFail.push(otherRecognizer);
      otherRecognizer.requireFailure(this);
    }

    return this;
  };
  /**
   * @private
   * drop the requireFailure link. it does not remove the link on the other recognizer.
   * @param {Recognizer} otherRecognizer
   * @returns {Recognizer} this
   */


  _proto.dropRequireFailure = function dropRequireFailure(otherRecognizer) {
    if (invokeArrayArg(otherRecognizer, 'dropRequireFailure', this)) {
      return this;
    }

    otherRecognizer = getRecognizerByNameIfManager(otherRecognizer, this);
    var index = inArray(this.requireFail, otherRecognizer);

    if (index > -1) {
      this.requireFail.splice(index, 1);
    }

    return this;
  };
  /**
   * @private
   * has require failures boolean
   * @returns {boolean}
   */


  _proto.hasRequireFailures = function hasRequireFailures() {
    return this.requireFail.length > 0;
  };
  /**
   * @private
   * if the recognizer can recognize simultaneous with an other recognizer
   * @param {Recognizer} otherRecognizer
   * @returns {Boolean}
   */


  _proto.canRecognizeWith = function canRecognizeWith(otherRecognizer) {
    return !!this.simultaneous[otherRecognizer.id];
  };
  /**
   * @private
   * You should use `tryEmit` instead of `emit` directly to check
   * that all the needed recognizers has failed before emitting.
   * @param {Object} input
   */


  _proto.emit = function emit(input) {
    var self = this;
    var state = this.state;

    function emit(event) {
      self.manager.emit(event, input);
    } // 'panstart' and 'panmove'


    if (state < STATE_ENDED) {
      emit(self.options.event + stateStr(state));
    }

    emit(self.options.event); // simple 'eventName' events

    if (input.additionalEvent) {
      // additional event(panleft, panright, pinchin, pinchout...)
      emit(input.additionalEvent);
    } // panend and pancancel


    if (state >= STATE_ENDED) {
      emit(self.options.event + stateStr(state));
    }
  };
  /**
   * @private
   * Check that all the require failure recognizers has failed,
   * if true, it emits a gesture event,
   * otherwise, setup the state to FAILED.
   * @param {Object} input
   */


  _proto.tryEmit = function tryEmit(input) {
    if (this.canEmit()) {
      return this.emit(input);
    } // it's failing anyway


    this.state = STATE_FAILED;
  };
  /**
   * @private
   * can we emit?
   * @returns {boolean}
   */


  _proto.canEmit = function canEmit() {
    var i = 0;

    while (i < this.requireFail.length) {
      if (!(this.requireFail[i].state & (STATE_FAILED | STATE_POSSIBLE))) {
        return false;
      }

      i++;
    }

    return true;
  };
  /**
   * @private
   * update the recognizer
   * @param {Object} inputData
   */


  _proto.recognize = function recognize(inputData) {
    // make a new copy of the inputData
    // so we can change the inputData without messing up the other recognizers
    var inputDataClone = assign$1({}, inputData); // is is enabled and allow recognizing?

    if (!boolOrFn(this.options.enable, [this, inputDataClone])) {
      this.reset();
      this.state = STATE_FAILED;
      return;
    } // reset when we've reached the end


    if (this.state & (STATE_RECOGNIZED | STATE_CANCELLED | STATE_FAILED)) {
      this.state = STATE_POSSIBLE;
    }

    this.state = this.process(inputDataClone); // the recognizer has recognized a gesture
    // so trigger an event

    if (this.state & (STATE_BEGAN | STATE_CHANGED | STATE_ENDED | STATE_CANCELLED)) {
      this.tryEmit(inputDataClone);
    }
  };
  /**
   * @private
   * return the state of the recognizer
   * the actual recognizing happens in this method
   * @virtual
   * @param {Object} inputData
   * @returns {constant} STATE
   */

  /* jshint ignore:start */


  _proto.process = function process(inputData) {};
  /* jshint ignore:end */

  /**
   * @private
   * return the preferred touch-action
   * @virtual
   * @returns {Array}
   */


  _proto.getTouchAction = function getTouchAction() {};
  /**
   * @private
   * called when the gesture isn't allowed to recognize
   * like when another is being recognized or it is disabled
   * @virtual
   */


  _proto.reset = function reset() {};

  return Recognizer;
}();

/**
 * @private
 * A tap is recognized when the pointer is doing a small tap/click. Multiple taps are recognized if they occur
 * between the given interval and position. The delay option can be used to recognize multi-taps without firing
 * a single tap.
 *
 * The eventData from the emitted event contains the property `tapCount`, which contains the amount of
 * multi-taps being recognized.
 * @constructor
 * @extends Recognizer
 */

var TapRecognizer =
/*#__PURE__*/
function (_Recognizer) {
  _inheritsLoose(TapRecognizer, _Recognizer);

  function TapRecognizer(options) {
    var _this;

    if (options === void 0) {
      options = {};
    }

    _this = _Recognizer.call(this, _extends({
      event: 'tap',
      pointers: 1,
      taps: 1,
      interval: 300,
      // max time between the multi-tap taps
      time: 250,
      // max time of the pointer to be down (like finger on the screen)
      threshold: 9,
      // a minimal movement is ok, but keep it low
      posThreshold: 10
    }, options)) || this; // previous time and center,
    // used for tap counting

    _this.pTime = false;
    _this.pCenter = false;
    _this._timer = null;
    _this._input = null;
    _this.count = 0;
    return _this;
  }

  var _proto = TapRecognizer.prototype;

  _proto.getTouchAction = function getTouchAction() {
    return [TOUCH_ACTION_MANIPULATION];
  };

  _proto.process = function process(input) {
    var _this2 = this;

    var options = this.options;
    var validPointers = input.pointers.length === options.pointers;
    var validMovement = input.distance < options.threshold;
    var validTouchTime = input.deltaTime < options.time;
    this.reset();

    if (input.eventType & INPUT_START && this.count === 0) {
      return this.failTimeout();
    } // we only allow little movement
    // and we've reached an end event, so a tap is possible


    if (validMovement && validTouchTime && validPointers) {
      if (input.eventType !== INPUT_END) {
        return this.failTimeout();
      }

      var validInterval = this.pTime ? input.timeStamp - this.pTime < options.interval : true;
      var validMultiTap = !this.pCenter || getDistance(this.pCenter, input.center) < options.posThreshold;
      this.pTime = input.timeStamp;
      this.pCenter = input.center;

      if (!validMultiTap || !validInterval) {
        this.count = 1;
      } else {
        this.count += 1;
      }

      this._input = input; // if tap count matches we have recognized it,
      // else it has began recognizing...

      var tapCount = this.count % options.taps;

      if (tapCount === 0) {
        // no failing requirements, immediately trigger the tap event
        // or wait as long as the multitap interval to trigger
        if (!this.hasRequireFailures()) {
          return STATE_RECOGNIZED;
        } else {
          this._timer = setTimeout(function () {
            _this2.state = STATE_RECOGNIZED;

            _this2.tryEmit();
          }, options.interval);
          return STATE_BEGAN;
        }
      }
    }

    return STATE_FAILED;
  };

  _proto.failTimeout = function failTimeout() {
    var _this3 = this;

    this._timer = setTimeout(function () {
      _this3.state = STATE_FAILED;
    }, this.options.interval);
    return STATE_FAILED;
  };

  _proto.reset = function reset() {
    clearTimeout(this._timer);
  };

  _proto.emit = function emit() {
    if (this.state === STATE_RECOGNIZED) {
      this._input.tapCount = this.count;
      this.manager.emit(this.options.event, this._input);
    }
  };

  return TapRecognizer;
}(Recognizer);

/**
 * @private
 * This recognizer is just used as a base for the simple attribute recognizers.
 * @constructor
 * @extends Recognizer
 */

var AttrRecognizer =
/*#__PURE__*/
function (_Recognizer) {
  _inheritsLoose(AttrRecognizer, _Recognizer);

  function AttrRecognizer(options) {
    if (options === void 0) {
      options = {};
    }

    return _Recognizer.call(this, _extends({
      pointers: 1
    }, options)) || this;
  }
  /**
   * @private
   * Used to check if it the recognizer receives valid input, like input.distance > 10.
   * @memberof AttrRecognizer
   * @param {Object} input
   * @returns {Boolean} recognized
   */


  var _proto = AttrRecognizer.prototype;

  _proto.attrTest = function attrTest(input) {
    var optionPointers = this.options.pointers;
    return optionPointers === 0 || input.pointers.length === optionPointers;
  };
  /**
   * @private
   * Process the input and return the state for the recognizer
   * @memberof AttrRecognizer
   * @param {Object} input
   * @returns {*} State
   */


  _proto.process = function process(input) {
    var state = this.state;
    var eventType = input.eventType;
    var isRecognized = state & (STATE_BEGAN | STATE_CHANGED);
    var isValid = this.attrTest(input); // on cancel input and we've recognized before, return STATE_CANCELLED

    if (isRecognized && (eventType & INPUT_CANCEL || !isValid)) {
      return state | STATE_CANCELLED;
    } else if (isRecognized || isValid) {
      if (eventType & INPUT_END) {
        return state | STATE_ENDED;
      } else if (!(state & STATE_BEGAN)) {
        return STATE_BEGAN;
      }

      return state | STATE_CHANGED;
    }

    return STATE_FAILED;
  };

  return AttrRecognizer;
}(Recognizer);

/**
 * @private
 * direction cons to string
 * @param {constant} direction
 * @returns {String}
 */

function directionStr(direction) {
  if (direction === DIRECTION_DOWN) {
    return 'down';
  } else if (direction === DIRECTION_UP) {
    return 'up';
  } else if (direction === DIRECTION_LEFT) {
    return 'left';
  } else if (direction === DIRECTION_RIGHT) {
    return 'right';
  }

  return '';
}

/**
 * @private
 * Pan
 * Recognized when the pointer is down and moved in the allowed direction.
 * @constructor
 * @extends AttrRecognizer
 */

var PanRecognizer =
/*#__PURE__*/
function (_AttrRecognizer) {
  _inheritsLoose(PanRecognizer, _AttrRecognizer);

  function PanRecognizer(options) {
    var _this;

    if (options === void 0) {
      options = {};
    }

    _this = _AttrRecognizer.call(this, _extends({
      event: 'pan',
      threshold: 10,
      pointers: 1,
      direction: DIRECTION_ALL
    }, options)) || this;
    _this.pX = null;
    _this.pY = null;
    return _this;
  }

  var _proto = PanRecognizer.prototype;

  _proto.getTouchAction = function getTouchAction() {
    var direction = this.options.direction;
    var actions = [];

    if (direction & DIRECTION_HORIZONTAL) {
      actions.push(TOUCH_ACTION_PAN_Y);
    }

    if (direction & DIRECTION_VERTICAL) {
      actions.push(TOUCH_ACTION_PAN_X);
    }

    return actions;
  };

  _proto.directionTest = function directionTest(input) {
    var options = this.options;
    var hasMoved = true;
    var distance = input.distance;
    var direction = input.direction;
    var x = input.deltaX;
    var y = input.deltaY; // lock to axis?

    if (!(direction & options.direction)) {
      if (options.direction & DIRECTION_HORIZONTAL) {
        direction = x === 0 ? DIRECTION_NONE : x < 0 ? DIRECTION_LEFT : DIRECTION_RIGHT;
        hasMoved = x !== this.pX;
        distance = Math.abs(input.deltaX);
      } else {
        direction = y === 0 ? DIRECTION_NONE : y < 0 ? DIRECTION_UP : DIRECTION_DOWN;
        hasMoved = y !== this.pY;
        distance = Math.abs(input.deltaY);
      }
    }

    input.direction = direction;
    return hasMoved && distance > options.threshold && direction & options.direction;
  };

  _proto.attrTest = function attrTest(input) {
    return AttrRecognizer.prototype.attrTest.call(this, input) && ( // replace with a super call
    this.state & STATE_BEGAN || !(this.state & STATE_BEGAN) && this.directionTest(input));
  };

  _proto.emit = function emit(input) {
    this.pX = input.deltaX;
    this.pY = input.deltaY;
    var direction = directionStr(input.direction);

    if (direction) {
      input.additionalEvent = this.options.event + direction;
    }

    _AttrRecognizer.prototype.emit.call(this, input);
  };

  return PanRecognizer;
}(AttrRecognizer);

/**
 * @private
 * Swipe
 * Recognized when the pointer is moving fast (velocity), with enough distance in the allowed direction.
 * @constructor
 * @extends AttrRecognizer
 */

var SwipeRecognizer =
/*#__PURE__*/
function (_AttrRecognizer) {
  _inheritsLoose(SwipeRecognizer, _AttrRecognizer);

  function SwipeRecognizer(options) {
    if (options === void 0) {
      options = {};
    }

    return _AttrRecognizer.call(this, _extends({
      event: 'swipe',
      threshold: 10,
      velocity: 0.3,
      direction: DIRECTION_HORIZONTAL | DIRECTION_VERTICAL,
      pointers: 1
    }, options)) || this;
  }

  var _proto = SwipeRecognizer.prototype;

  _proto.getTouchAction = function getTouchAction() {
    return PanRecognizer.prototype.getTouchAction.call(this);
  };

  _proto.attrTest = function attrTest(input) {
    var direction = this.options.direction;
    var velocity;

    if (direction & (DIRECTION_HORIZONTAL | DIRECTION_VERTICAL)) {
      velocity = input.overallVelocity;
    } else if (direction & DIRECTION_HORIZONTAL) {
      velocity = input.overallVelocityX;
    } else if (direction & DIRECTION_VERTICAL) {
      velocity = input.overallVelocityY;
    }

    return _AttrRecognizer.prototype.attrTest.call(this, input) && direction & input.offsetDirection && input.distance > this.options.threshold && input.maxPointers === this.options.pointers && abs(velocity) > this.options.velocity && input.eventType & INPUT_END;
  };

  _proto.emit = function emit(input) {
    var direction = directionStr(input.offsetDirection);

    if (direction) {
      this.manager.emit(this.options.event + direction, input);
    }

    this.manager.emit(this.options.event, input);
  };

  return SwipeRecognizer;
}(AttrRecognizer);

/**
 * @private
 * Pinch
 * Recognized when two or more pointers are moving toward (zoom-in) or away from each other (zoom-out).
 * @constructor
 * @extends AttrRecognizer
 */

var PinchRecognizer =
/*#__PURE__*/
function (_AttrRecognizer) {
  _inheritsLoose(PinchRecognizer, _AttrRecognizer);

  function PinchRecognizer(options) {
    if (options === void 0) {
      options = {};
    }

    return _AttrRecognizer.call(this, _extends({
      event: 'pinch',
      threshold: 0,
      pointers: 2
    }, options)) || this;
  }

  var _proto = PinchRecognizer.prototype;

  _proto.getTouchAction = function getTouchAction() {
    return [TOUCH_ACTION_NONE];
  };

  _proto.attrTest = function attrTest(input) {
    return _AttrRecognizer.prototype.attrTest.call(this, input) && (Math.abs(input.scale - 1) > this.options.threshold || this.state & STATE_BEGAN);
  };

  _proto.emit = function emit(input) {
    if (input.scale !== 1) {
      var inOut = input.scale < 1 ? 'in' : 'out';
      input.additionalEvent = this.options.event + inOut;
    }

    _AttrRecognizer.prototype.emit.call(this, input);
  };

  return PinchRecognizer;
}(AttrRecognizer);

/**
 * @private
 * Rotate
 * Recognized when two or more pointer are moving in a circular motion.
 * @constructor
 * @extends AttrRecognizer
 */

var RotateRecognizer =
/*#__PURE__*/
function (_AttrRecognizer) {
  _inheritsLoose(RotateRecognizer, _AttrRecognizer);

  function RotateRecognizer(options) {
    if (options === void 0) {
      options = {};
    }

    return _AttrRecognizer.call(this, _extends({
      event: 'rotate',
      threshold: 0,
      pointers: 2
    }, options)) || this;
  }

  var _proto = RotateRecognizer.prototype;

  _proto.getTouchAction = function getTouchAction() {
    return [TOUCH_ACTION_NONE];
  };

  _proto.attrTest = function attrTest(input) {
    return _AttrRecognizer.prototype.attrTest.call(this, input) && (Math.abs(input.rotation) > this.options.threshold || this.state & STATE_BEGAN);
  };

  return RotateRecognizer;
}(AttrRecognizer);

/**
 * @private
 * Press
 * Recognized when the pointer is down for x ms without any movement.
 * @constructor
 * @extends Recognizer
 */

var PressRecognizer =
/*#__PURE__*/
function (_Recognizer) {
  _inheritsLoose(PressRecognizer, _Recognizer);

  function PressRecognizer(options) {
    var _this;

    if (options === void 0) {
      options = {};
    }

    _this = _Recognizer.call(this, _extends({
      event: 'press',
      pointers: 1,
      time: 251,
      // minimal time of the pointer to be pressed
      threshold: 9
    }, options)) || this;
    _this._timer = null;
    _this._input = null;
    return _this;
  }

  var _proto = PressRecognizer.prototype;

  _proto.getTouchAction = function getTouchAction() {
    return [TOUCH_ACTION_AUTO];
  };

  _proto.process = function process(input) {
    var _this2 = this;

    var options = this.options;
    var validPointers = input.pointers.length === options.pointers;
    var validMovement = input.distance < options.threshold;
    var validTime = input.deltaTime > options.time;
    this._input = input; // we only allow little movement
    // and we've reached an end event, so a tap is possible

    if (!validMovement || !validPointers || input.eventType & (INPUT_END | INPUT_CANCEL) && !validTime) {
      this.reset();
    } else if (input.eventType & INPUT_START) {
      this.reset();
      this._timer = setTimeout(function () {
        _this2.state = STATE_RECOGNIZED;

        _this2.tryEmit();
      }, options.time);
    } else if (input.eventType & INPUT_END) {
      return STATE_RECOGNIZED;
    }

    return STATE_FAILED;
  };

  _proto.reset = function reset() {
    clearTimeout(this._timer);
  };

  _proto.emit = function emit(input) {
    if (this.state !== STATE_RECOGNIZED) {
      return;
    }

    if (input && input.eventType & INPUT_END) {
      this.manager.emit(this.options.event + "up", input);
    } else {
      this._input.timeStamp = now();
      this.manager.emit(this.options.event, this._input);
    }
  };

  return PressRecognizer;
}(Recognizer);

var defaults = {
  /**
   * @private
   * set if DOM events are being triggered.
   * But this is slower and unused by simple implementations, so disabled by default.
   * @type {Boolean}
   * @default false
   */
  domEvents: false,

  /**
   * @private
   * The value for the touchAction property/fallback.
   * When set to `compute` it will magically set the correct value based on the added recognizers.
   * @type {String}
   * @default compute
   */
  touchAction: TOUCH_ACTION_COMPUTE,

  /**
   * @private
   * @type {Boolean}
   * @default true
   */
  enable: true,

  /**
   * @private
   * EXPERIMENTAL FEATURE -- can be removed/changed
   * Change the parent input target element.
   * If Null, then it is being set the to main element.
   * @type {Null|EventTarget}
   * @default null
   */
  inputTarget: null,

  /**
   * @private
   * force an input class
   * @type {Null|Function}
   * @default null
   */
  inputClass: null,

  /**
   * @private
   * Some CSS properties can be used to improve the working of Hammer.
   * Add them to this method and they will be set when creating a new Manager.
   * @namespace
   */
  cssProps: {
    /**
     * @private
     * Disables text selection to improve the dragging gesture. Mainly for desktop browsers.
     * @type {String}
     * @default 'none'
     */
    userSelect: "none",

    /**
     * @private
     * Disable the Windows Phone grippers when pressing an element.
     * @type {String}
     * @default 'none'
     */
    touchSelect: "none",

    /**
     * @private
     * Disables the default callout shown when you touch and hold a touch target.
     * On iOS, when you touch and hold a touch target such as a link, Safari displays
     * a callout containing information about the link. This property allows you to disable that callout.
     * @type {String}
     * @default 'none'
     */
    touchCallout: "none",

    /**
     * @private
     * Specifies whether zooming is enabled. Used by IE10>
     * @type {String}
     * @default 'none'
     */
    contentZooming: "none",

    /**
     * @private
     * Specifies that an entire element should be draggable instead of its contents. Mainly for desktop browsers.
     * @type {String}
     * @default 'none'
     */
    userDrag: "none",

    /**
     * @private
     * Overrides the highlight color shown when the user taps a link or a JavaScript
     * clickable element in iOS. This property obeys the alpha value, if specified.
     * @type {String}
     * @default 'rgba(0,0,0,0)'
     */
    tapHighlightColor: "rgba(0,0,0,0)"
  }
};
/**
 * @private
 * Default recognizer setup when calling `Hammer()`
 * When creating a new Manager these will be skipped.
 * This is separated with other defaults because of tree-shaking.
 * @type {Array}
 */

var preset = [[RotateRecognizer, {
  enable: false
}], [PinchRecognizer, {
  enable: false
}, ['rotate']], [SwipeRecognizer, {
  direction: DIRECTION_HORIZONTAL
}], [PanRecognizer, {
  direction: DIRECTION_HORIZONTAL
}, ['swipe']], [TapRecognizer], [TapRecognizer, {
  event: 'doubletap',
  taps: 2
}, ['tap']], [PressRecognizer]];

var STOP = 1;
var FORCED_STOP = 2;
/**
 * @private
 * add/remove the css properties as defined in manager.options.cssProps
 * @param {Manager} manager
 * @param {Boolean} add
 */

function toggleCssProps(manager, add) {
  var element = manager.element;

  if (!element.style) {
    return;
  }

  var prop;
  each(manager.options.cssProps, function (value, name) {
    prop = prefixed(element.style, name);

    if (add) {
      manager.oldCssProps[prop] = element.style[prop];
      element.style[prop] = value;
    } else {
      element.style[prop] = manager.oldCssProps[prop] || "";
    }
  });

  if (!add) {
    manager.oldCssProps = {};
  }
}
/**
 * @private
 * trigger dom event
 * @param {String} event
 * @param {Object} data
 */


function triggerDomEvent(event, data) {
  var gestureEvent = document.createEvent("Event");
  gestureEvent.initEvent(event, true, true);
  gestureEvent.gesture = data;
  data.target.dispatchEvent(gestureEvent);
}
/**
* @private
 * Manager
 * @param {HTMLElement} element
 * @param {Object} [options]
 * @constructor
 */


var Manager =
/*#__PURE__*/
function () {
  function Manager(element, options) {
    var _this = this;

    this.options = assign$1({}, defaults, options || {});
    this.options.inputTarget = this.options.inputTarget || element;
    this.handlers = {};
    this.session = {};
    this.recognizers = [];
    this.oldCssProps = {};
    this.element = element;
    this.input = createInputInstance(this);
    this.touchAction = new TouchAction(this, this.options.touchAction);
    toggleCssProps(this, true);
    each(this.options.recognizers, function (item) {
      var recognizer = _this.add(new item[0](item[1]));

      item[2] && recognizer.recognizeWith(item[2]);
      item[3] && recognizer.requireFailure(item[3]);
    }, this);
  }
  /**
   * @private
   * set options
   * @param {Object} options
   * @returns {Manager}
   */


  var _proto = Manager.prototype;

  _proto.set = function set(options) {
    assign$1(this.options, options); // Options that need a little more setup

    if (options.touchAction) {
      this.touchAction.update();
    }

    if (options.inputTarget) {
      // Clean up existing event listeners and reinitialize
      this.input.destroy();
      this.input.target = options.inputTarget;
      this.input.init();
    }

    return this;
  };
  /**
   * @private
   * stop recognizing for this session.
   * This session will be discarded, when a new [input]start event is fired.
   * When forced, the recognizer cycle is stopped immediately.
   * @param {Boolean} [force]
   */


  _proto.stop = function stop(force) {
    this.session.stopped = force ? FORCED_STOP : STOP;
  };
  /**
   * @private
   * run the recognizers!
   * called by the inputHandler function on every movement of the pointers (touches)
   * it walks through all the recognizers and tries to detect the gesture that is being made
   * @param {Object} inputData
   */


  _proto.recognize = function recognize(inputData) {
    var session = this.session;

    if (session.stopped) {
      return;
    } // run the touch-action polyfill


    this.touchAction.preventDefaults(inputData);
    var recognizer;
    var recognizers = this.recognizers; // this holds the recognizer that is being recognized.
    // so the recognizer's state needs to be BEGAN, CHANGED, ENDED or RECOGNIZED
    // if no recognizer is detecting a thing, it is set to `null`

    var curRecognizer = session.curRecognizer; // reset when the last recognizer is recognized
    // or when we're in a new session

    if (!curRecognizer || curRecognizer && curRecognizer.state & STATE_RECOGNIZED) {
      session.curRecognizer = null;
      curRecognizer = null;
    }

    var i = 0;

    while (i < recognizers.length) {
      recognizer = recognizers[i]; // find out if we are allowed try to recognize the input for this one.
      // 1.   allow if the session is NOT forced stopped (see the .stop() method)
      // 2.   allow if we still haven't recognized a gesture in this session, or the this recognizer is the one
      //      that is being recognized.
      // 3.   allow if the recognizer is allowed to run simultaneous with the current recognized recognizer.
      //      this can be setup with the `recognizeWith()` method on the recognizer.

      if (session.stopped !== FORCED_STOP && ( // 1
      !curRecognizer || recognizer === curRecognizer || // 2
      recognizer.canRecognizeWith(curRecognizer))) {
        // 3
        recognizer.recognize(inputData);
      } else {
        recognizer.reset();
      } // if the recognizer has been recognizing the input as a valid gesture, we want to store this one as the
      // current active recognizer. but only if we don't already have an active recognizer


      if (!curRecognizer && recognizer.state & (STATE_BEGAN | STATE_CHANGED | STATE_ENDED)) {
        session.curRecognizer = recognizer;
        curRecognizer = recognizer;
      }

      i++;
    }
  };
  /**
   * @private
   * get a recognizer by its event name.
   * @param {Recognizer|String} recognizer
   * @returns {Recognizer|Null}
   */


  _proto.get = function get(recognizer) {
    if (recognizer instanceof Recognizer) {
      return recognizer;
    }

    var recognizers = this.recognizers;

    for (var i = 0; i < recognizers.length; i++) {
      if (recognizers[i].options.event === recognizer) {
        return recognizers[i];
      }
    }

    return null;
  };
  /**
   * @private add a recognizer to the manager
   * existing recognizers with the same event name will be removed
   * @param {Recognizer} recognizer
   * @returns {Recognizer|Manager}
   */


  _proto.add = function add(recognizer) {
    if (invokeArrayArg(recognizer, "add", this)) {
      return this;
    } // remove existing


    var existing = this.get(recognizer.options.event);

    if (existing) {
      this.remove(existing);
    }

    this.recognizers.push(recognizer);
    recognizer.manager = this;
    this.touchAction.update();
    return recognizer;
  };
  /**
   * @private
   * remove a recognizer by name or instance
   * @param {Recognizer|String} recognizer
   * @returns {Manager}
   */


  _proto.remove = function remove(recognizer) {
    if (invokeArrayArg(recognizer, "remove", this)) {
      return this;
    }

    var targetRecognizer = this.get(recognizer); // let's make sure this recognizer exists

    if (recognizer) {
      var recognizers = this.recognizers;
      var index = inArray(recognizers, targetRecognizer);

      if (index !== -1) {
        recognizers.splice(index, 1);
        this.touchAction.update();
      }
    }

    return this;
  };
  /**
   * @private
   * bind event
   * @param {String} events
   * @param {Function} handler
   * @returns {EventEmitter} this
   */


  _proto.on = function on(events, handler) {
    if (events === undefined || handler === undefined) {
      return this;
    }

    var handlers = this.handlers;
    each(splitStr(events), function (event) {
      handlers[event] = handlers[event] || [];
      handlers[event].push(handler);
    });
    return this;
  };
  /**
   * @private unbind event, leave emit blank to remove all handlers
   * @param {String} events
   * @param {Function} [handler]
   * @returns {EventEmitter} this
   */


  _proto.off = function off(events, handler) {
    if (events === undefined) {
      return this;
    }

    var handlers = this.handlers;
    each(splitStr(events), function (event) {
      if (!handler) {
        delete handlers[event];
      } else {
        handlers[event] && handlers[event].splice(inArray(handlers[event], handler), 1);
      }
    });
    return this;
  };
  /**
   * @private emit event to the listeners
   * @param {String} event
   * @param {Object} data
   */


  _proto.emit = function emit(event, data) {
    // we also want to trigger dom events
    if (this.options.domEvents) {
      triggerDomEvent(event, data);
    } // no handlers, so skip it all


    var handlers = this.handlers[event] && this.handlers[event].slice();

    if (!handlers || !handlers.length) {
      return;
    }

    data.type = event;

    data.preventDefault = function () {
      data.srcEvent.preventDefault();
    };

    var i = 0;

    while (i < handlers.length) {
      handlers[i](data);
      i++;
    }
  };
  /**
   * @private
   * destroy the manager and unbinds all events
   * it doesn't unbind dom events, that is the user own responsibility
   */


  _proto.destroy = function destroy() {
    this.element && toggleCssProps(this, false);
    this.handlers = {};
    this.session = {};
    this.input.destroy();
    this.element = null;
  };

  return Manager;
}();

var SINGLE_TOUCH_INPUT_MAP = {
  touchstart: INPUT_START,
  touchmove: INPUT_MOVE,
  touchend: INPUT_END,
  touchcancel: INPUT_CANCEL
};
var SINGLE_TOUCH_TARGET_EVENTS = 'touchstart';
var SINGLE_TOUCH_WINDOW_EVENTS = 'touchstart touchmove touchend touchcancel';
/**
 * @private
 * Touch events input
 * @constructor
 * @extends Input
 */

var SingleTouchInput =
/*#__PURE__*/
function (_Input) {
  _inheritsLoose(SingleTouchInput, _Input);

  function SingleTouchInput() {
    var _this;

    var proto = SingleTouchInput.prototype;
    proto.evTarget = SINGLE_TOUCH_TARGET_EVENTS;
    proto.evWin = SINGLE_TOUCH_WINDOW_EVENTS;
    _this = _Input.apply(this, arguments) || this;
    _this.started = false;
    return _this;
  }

  var _proto = SingleTouchInput.prototype;

  _proto.handler = function handler(ev) {
    var type = SINGLE_TOUCH_INPUT_MAP[ev.type]; // should we handle the touch events?

    if (type === INPUT_START) {
      this.started = true;
    }

    if (!this.started) {
      return;
    }

    var touches = normalizeSingleTouches.call(this, ev, type); // when done, reset the started state

    if (type & (INPUT_END | INPUT_CANCEL) && touches[0].length - touches[1].length === 0) {
      this.started = false;
    }

    this.callback(this.manager, type, {
      pointers: touches[0],
      changedPointers: touches[1],
      pointerType: INPUT_TYPE_TOUCH,
      srcEvent: ev
    });
  };

  return SingleTouchInput;
}(Input);

function normalizeSingleTouches(ev, type) {
  var all = toArray(ev.touches);
  var changed = toArray(ev.changedTouches);

  if (type & (INPUT_END | INPUT_CANCEL)) {
    all = uniqueArray(all.concat(changed), 'identifier', true);
  }

  return [all, changed];
}

/**
 * @private
 * wrap a method with a deprecation warning and stack trace
 * @param {Function} method
 * @param {String} name
 * @param {String} message
 * @returns {Function} A new function wrapping the supplied method.
 */
function deprecate(method, name, message) {
  var deprecationMessage = "DEPRECATED METHOD: " + name + "\n" + message + " AT \n";
  return function () {
    var e = new Error('get-stack-trace');
    var stack = e && e.stack ? e.stack.replace(/^[^\(]+?[\n$]/gm, '').replace(/^\s+at\s+/gm, '').replace(/^Object.<anonymous>\s*\(/gm, '{anonymous}()@') : 'Unknown Stack Trace';
    var log = window.console && (window.console.warn || window.console.log);

    if (log) {
      log.call(window.console, deprecationMessage, stack);
    }

    return method.apply(this, arguments);
  };
}

/**
 * @private
 * extend object.
 * means that properties in dest will be overwritten by the ones in src.
 * @param {Object} dest
 * @param {Object} src
 * @param {Boolean} [merge=false]
 * @returns {Object} dest
 */

var extend = deprecate(function (dest, src, merge) {
  var keys = Object.keys(src);
  var i = 0;

  while (i < keys.length) {
    if (!merge || merge && dest[keys[i]] === undefined) {
      dest[keys[i]] = src[keys[i]];
    }

    i++;
  }

  return dest;
}, 'extend', 'Use `assign`.');

/**
 * @private
 * merge the values from src in the dest.
 * means that properties that exist in dest will not be overwritten by src
 * @param {Object} dest
 * @param {Object} src
 * @returns {Object} dest
 */

var merge = deprecate(function (dest, src) {
  return extend(dest, src, true);
}, 'merge', 'Use `assign`.');

/**
 * @private
 * simple class inheritance
 * @param {Function} child
 * @param {Function} base
 * @param {Object} [properties]
 */

function inherit(child, base, properties) {
  var baseP = base.prototype;
  var childP;
  childP = child.prototype = Object.create(baseP);
  childP.constructor = child;
  childP._super = baseP;

  if (properties) {
    assign$1(childP, properties);
  }
}

/**
 * @private
 * simple function bind
 * @param {Function} fn
 * @param {Object} context
 * @returns {Function}
 */
function bindFn(fn, context) {
  return function boundFn() {
    return fn.apply(context, arguments);
  };
}

/**
 * @private
 * Simple way to create a manager with a default set of recognizers.
 * @param {HTMLElement} element
 * @param {Object} [options]
 * @constructor
 */

var Hammer =
/*#__PURE__*/
function () {
  var Hammer =
  /**
    * @private
    * @const {string}
    */
  function Hammer(element, options) {
    if (options === void 0) {
      options = {};
    }

    return new Manager(element, _extends({
      recognizers: preset.concat()
    }, options));
  };

  Hammer.VERSION = "2.0.17-rc";
  Hammer.DIRECTION_ALL = DIRECTION_ALL;
  Hammer.DIRECTION_DOWN = DIRECTION_DOWN;
  Hammer.DIRECTION_LEFT = DIRECTION_LEFT;
  Hammer.DIRECTION_RIGHT = DIRECTION_RIGHT;
  Hammer.DIRECTION_UP = DIRECTION_UP;
  Hammer.DIRECTION_HORIZONTAL = DIRECTION_HORIZONTAL;
  Hammer.DIRECTION_VERTICAL = DIRECTION_VERTICAL;
  Hammer.DIRECTION_NONE = DIRECTION_NONE;
  Hammer.DIRECTION_DOWN = DIRECTION_DOWN;
  Hammer.INPUT_START = INPUT_START;
  Hammer.INPUT_MOVE = INPUT_MOVE;
  Hammer.INPUT_END = INPUT_END;
  Hammer.INPUT_CANCEL = INPUT_CANCEL;
  Hammer.STATE_POSSIBLE = STATE_POSSIBLE;
  Hammer.STATE_BEGAN = STATE_BEGAN;
  Hammer.STATE_CHANGED = STATE_CHANGED;
  Hammer.STATE_ENDED = STATE_ENDED;
  Hammer.STATE_RECOGNIZED = STATE_RECOGNIZED;
  Hammer.STATE_CANCELLED = STATE_CANCELLED;
  Hammer.STATE_FAILED = STATE_FAILED;
  Hammer.Manager = Manager;
  Hammer.Input = Input;
  Hammer.TouchAction = TouchAction;
  Hammer.TouchInput = TouchInput;
  Hammer.MouseInput = MouseInput;
  Hammer.PointerEventInput = PointerEventInput;
  Hammer.TouchMouseInput = TouchMouseInput;
  Hammer.SingleTouchInput = SingleTouchInput;
  Hammer.Recognizer = Recognizer;
  Hammer.AttrRecognizer = AttrRecognizer;
  Hammer.Tap = TapRecognizer;
  Hammer.Pan = PanRecognizer;
  Hammer.Swipe = SwipeRecognizer;
  Hammer.Pinch = PinchRecognizer;
  Hammer.Rotate = RotateRecognizer;
  Hammer.Press = PressRecognizer;
  Hammer.on = addEventListeners;
  Hammer.off = removeEventListeners;
  Hammer.each = each;
  Hammer.merge = merge;
  Hammer.extend = extend;
  Hammer.bindFn = bindFn;
  Hammer.assign = assign$1;
  Hammer.inherit = inherit;
  Hammer.bindFn = bindFn;
  Hammer.prefixed = prefixed;
  Hammer.toArray = toArray;
  Hammer.inArray = inArray;
  Hammer.uniqueArray = uniqueArray;
  Hammer.splitStr = splitStr;
  Hammer.boolOrFn = boolOrFn;
  Hammer.hasParent = hasParent;
  Hammer.addEventListeners = addEventListeners;
  Hammer.removeEventListeners = removeEventListeners;
  Hammer.defaults = assign$1({}, defaults, {
    preset: preset
  });
  return Hammer;
}();

/**
 * Use this symbol to delete properies in deepObjectAssign.
 */
_Symbol("DELETE");

/**
 * Setup a mock hammer.js object, for unit testing.
 *
 * Inspiration: https://github.com/uber/deck.gl/pull/658
 * @returns {{on: noop, off: noop, destroy: noop, emit: noop, get: get}}
 */
function hammerMock() {
  const noop = () => {};
  return {
    on: noop,
    off: noop,
    destroy: noop,
    emit: noop,
    get() {
      return {
        set: noop
      };
    }
  };
}
const Hammer$1 = typeof window !== "undefined" ? window.Hammer || Hammer : function () {
  // hammer.js is only available in a browser, not in node.js. Replacing it with a mock object.
  return hammerMock();
};

/**
 * Turn an element into an clickToUse element.
 * When not active, the element has a transparent overlay. When the overlay is
 * clicked, the mode is changed to active.
 * When active, the element is displayed with a blue border around it, and
 * the interactive contents of the element can be used. When clicked outside
 * the element, the elements mode is changed to inactive.
 * @param {Element} container
 * @class Activator
 */
function Activator$1(container) {
  var _context;
  this._cleanupQueue = [];
  this.active = false;
  this._dom = {
    container,
    overlay: document.createElement("div")
  };
  this._dom.overlay.classList.add("vis-overlay");
  this._dom.container.appendChild(this._dom.overlay);
  this._cleanupQueue.push(() => {
    this._dom.overlay.parentNode.removeChild(this._dom.overlay);
  });
  const hammer = Hammer$1(this._dom.overlay);
  hammer.on("tap", _bindInstanceProperty(_context = this._onTapOverlay).call(_context, this));
  this._cleanupQueue.push(() => {
    hammer.destroy();
    // FIXME: cleaning up hammer instances doesn't work (Timeline not removed
    // from memory)
  });

  // block all touch events (except tap)
  const events = ["tap", "doubletap", "press", "pinch", "pan", "panstart", "panmove", "panend"];
  _forEachInstanceProperty(events).call(events, event => {
    hammer.on(event, event => {
      event.srcEvent.stopPropagation();
    });
  });

  // attach a click event to the window, in order to deactivate when clicking outside the timeline
  if (document && document.body) {
    this._onClick = event => {
      if (!_hasParent(event.target, container)) {
        this.deactivate();
      }
    };
    document.body.addEventListener("click", this._onClick);
    this._cleanupQueue.push(() => {
      document.body.removeEventListener("click", this._onClick);
    });
  }

  // prepare escape key listener for deactivating when active
  this._escListener = event => {
    if ("key" in event ? event.key === "Escape" : event.keyCode === 27 /* the keyCode is for IE11 */) {
      this.deactivate();
    }
  };
}

// turn into an event emitter
Emitter(Activator$1.prototype);

// The currently active activator
Activator$1.current = null;

/**
 * Destroy the activator. Cleans up all created DOM and event listeners
 */
Activator$1.prototype.destroy = function () {
  this.deactivate();
  for (const callback of _spliceInstanceProperty(_context2 = this._cleanupQueue).call(_context2, 0).toReversed()) {
    var _context2;
    callback();
  }
};

/**
 * Activate the element
 * Overlay is hidden, element is decorated with a blue shadow border
 */
Activator$1.prototype.activate = function () {
  // we allow only one active activator at a time
  if (Activator$1.current) {
    Activator$1.current.deactivate();
  }
  Activator$1.current = this;
  this.active = true;
  this._dom.overlay.style.display = "none";
  this._dom.container.classList.add("vis-active");
  this.emit("change");
  this.emit("activate");

  // ugly hack: bind ESC after emitting the events, as the Network rebinds all
  // keyboard events on a 'change' event
  document.body.addEventListener("keydown", this._escListener);
};

/**
 * Deactivate the element
 * Overlay is displayed on top of the element
 */
Activator$1.prototype.deactivate = function () {
  this.active = false;
  this._dom.overlay.style.display = "block";
  this._dom.container.classList.remove("vis-active");
  document.body.removeEventListener("keydown", this._escListener);
  this.emit("change");
  this.emit("deactivate");
};

/**
 * Handle a tap event: activate the container
 * @param {Event}  event   The event
 * @private
 */
Activator$1.prototype._onTapOverlay = function (event) {
  // activate the container
  this.activate();
  event.srcEvent.stopPropagation();
};

/**
 * Test whether the element has the requested parent element somewhere in
 * its chain of parent nodes.
 * @param {HTMLElement} element
 * @param {HTMLElement} parent
 * @returns {boolean} Returns true when the parent is found somewhere in the
 *                    chain of parent nodes.
 * @private
 */
function _hasParent(element, parent) {
  while (element) {
    if (element === parent) {
      return true;
    }
    element = element.parentNode;
  }
  return false;
}
// Color REs
const fullHexRE = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i;
const shortHexRE = /^#?([a-f\d])([a-f\d])([a-f\d])$/i;
/**
 * Copy property from b to a if property present in a.
 * If property in b explicitly set to null, delete it if `allowDeletion` set.
 *
 * Internal helper routine, should not be exported. Not added to `exports` for that reason.
 * @param a - Target object.
 * @param b - Source object.
 * @param prop - Name of property to copy from b to a.
 * @param allowDeletion - If true, delete property in a if explicitly set to null in b.
 */
function copyOrDelete(a, b, prop, allowDeletion) {
  let doDeletion = false;
  if (allowDeletion === true) {
    doDeletion = b[prop] === null && a[prop] !== undefined;
  }
  if (doDeletion) {
    delete a[prop];
  } else {
    a[prop] = b[prop]; // Remember, this is a reference copy!
  }
}
/**
 * Extend object a with selected properties of object b.
 * Only properties with defined values are copied.
 * @remarks
 * Previous version of this routine implied that multiple source objects could
 * be used; however, the implementation was **wrong**. Since multiple (\>1)
 * sources weren't used anywhere in the `vis.js` code, this has been removed
 * @param props - Names of first-level properties to copy over.
 * @param a - Target object.
 * @param b - Source object.
 * @param allowDeletion - If true, delete property in a if explicitly set to null in b.
 * @returns Argument a.
 */
function selectiveDeepExtend(props, a, b) {
  let allowDeletion = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : false;
  // TODO: add support for Arrays to deepExtend
  if (_Array$isArray(b)) {
    throw new TypeError("Arrays are not supported by deepExtend");
  }
  for (let p = 0; p < props.length; p++) {
    const prop = props[p];
    if (Object.prototype.hasOwnProperty.call(b, prop)) {
      if (b[prop] && b[prop].constructor === Object) {
        if (a[prop] === undefined) {
          a[prop] = {};
        }
        if (a[prop].constructor === Object) {
          deepExtend(a[prop], b[prop], false, allowDeletion);
        } else {
          copyOrDelete(a, b, prop, allowDeletion);
        }
      } else if (_Array$isArray(b[prop])) {
        throw new TypeError("Arrays are not supported by deepExtend");
      } else {
        copyOrDelete(a, b, prop, allowDeletion);
      }
    }
  }
  return a;
}
/**
 * Deep extend an object a with the properties of object b.
 * @param a - Target object.
 * @param b - Source object.
 * @param protoExtend - If true, the prototype values will also be extended.
 * (That is the options objects that inherit from others will also get the
 * inherited options).
 * @param allowDeletion - If true, the values of fields that are null will be deleted.
 * @returns Argument a.
 */
function deepExtend(a, b) {
  let protoExtend = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
  let allowDeletion = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : false;
  for (const prop in b) {
    if (Object.prototype.hasOwnProperty.call(b, prop) || protoExtend === true) {
      if (typeof b[prop] === "object" && b[prop] !== null && _Object$getPrototypeOf(b[prop]) === Object.prototype) {
        if (a[prop] === undefined) {
          a[prop] = deepExtend({}, b[prop], protoExtend); // NOTE: allowDeletion not propagated!
        } else if (typeof a[prop] === "object" && a[prop] !== null && _Object$getPrototypeOf(a[prop]) === Object.prototype) {
          deepExtend(a[prop], b[prop], protoExtend); // NOTE: allowDeletion not propagated!
        } else {
          copyOrDelete(a, b, prop, allowDeletion);
        }
      } else if (_Array$isArray(b[prop])) {
        var _context3;
        a[prop] = _sliceInstanceProperty(_context3 = b[prop]).call(_context3);
      } else {
        copyOrDelete(a, b, prop, allowDeletion);
      }
    }
  }
  return a;
}
/**
 * Used to extend an array and copy it. This is used to propagate paths recursively.
 * @param arr - First part.
 * @param newValue - The value to be aadded into the array.
 * @returns A new array with all items from arr and newValue (which is last).
 */
function copyAndExtendArray(arr, newValue) {
  return [...arr, newValue];
}
/**
 * Used to extend an array and copy it. This is used to propagate paths recursively.
 * @param arr - The array to be copied.
 * @returns Shallow copy of arr.
 */
function copyArray(arr) {
  return _sliceInstanceProperty(arr).call(arr);
}
/**
 * Cancels the event's default action if it is cancelable, without stopping further propagation of the event.
 * @param event - The event whose default action should be prevented.
 */
function preventDefault(event) {
  if (!event) {
    event = window.event;
  }
  if (!event) ;else if (event.preventDefault) {
    event.preventDefault(); // non-IE browsers
  } else {
    // @TODO: IE types? Does anyone care?
    event.returnValue = false; // IE browsers
  }
}
/**
 * Convert hex color string into RGB color object.
 * @remarks
 * {@link http://stackoverflow.com/questions/5623838/rgb-to-hex-and-hex-to-rgb}
 * @param hex - Hex color string (3 or 6 digits, with or without #).
 * @returns RGB color object.
 */
function hexToRGB(hex) {
  let result;
  switch (hex.length) {
    case 3:
    case 4:
      result = shortHexRE.exec(hex);
      return result ? {
        r: _parseInt(result[1] + result[1], 16),
        g: _parseInt(result[2] + result[2], 16),
        b: _parseInt(result[3] + result[3], 16)
      } : null;
    case 6:
    case 7:
      result = fullHexRE.exec(hex);
      return result ? {
        r: _parseInt(result[1], 16),
        g: _parseInt(result[2], 16),
        b: _parseInt(result[3], 16)
      } : null;
    default:
      return null;
  }
}
/**
 * Convert HSV \<0, 1\> into RGB color object.
 * @remarks
 * {@link https://gist.github.com/mjijackson/5311256}
 * @param h - Hue.
 * @param s - Saturation.
 * @param v - Value.
 * @returns RGB color object.
 */
function HSVToRGB(h, s, v) {
  let r;
  let g;
  let b;
  const i = Math.floor(h * 6);
  const f = h * 6 - i;
  const p = v * (1 - s);
  const q = v * (1 - f * s);
  const t = v * (1 - (1 - f) * s);
  switch (i % 6) {
    case 0:
      r = v, g = t, b = p;
      break;
    case 1:
      r = q, g = v, b = p;
      break;
    case 2:
      r = p, g = v, b = t;
      break;
    case 3:
      r = p, g = q, b = v;
      break;
    case 4:
      r = t, g = p, b = v;
      break;
    case 5:
      r = v, g = p, b = q;
      break;
  }
  return {
    r: Math.floor(r * 255),
    g: Math.floor(g * 255),
    b: Math.floor(b * 255)
  };
}
/**
 * Validate hex color string.
 * @param hex - Unknown string that may contain a color.
 * @returns True if the string is valid, false otherwise.
 */
function isValidHex(hex) {
  const isOk = /(^#[0-9A-F]{6}$)|(^#[0-9A-F]{3}$)/i.test(hex);
  return isOk;
}
let errorFound = false;
let allOptions$1;
const VALIDATOR_PRINT_STYLE$1 = "background: #FFeeee; color: #dd0000";

/**
 *  Used to validate options.
 */
let Validator$1 = class Validator {
  /**
   * Main function to be called
   * @param {object} options
   * @param {object} referenceOptions
   * @param {object} subObject
   * @returns {boolean}
   * @static
   */
  static validate(options, referenceOptions, subObject) {
    errorFound = false;
    allOptions$1 = referenceOptions;
    let usedOptions = referenceOptions;
    if (subObject !== undefined) {
      usedOptions = referenceOptions[subObject];
    }
    Validator.parse(options, usedOptions, []);
    return errorFound;
  }

  /**
   * Will traverse an object recursively and check every value
   * @param {object} options
   * @param {object} referenceOptions
   * @param {Array} path    | where to look for the actual option
   * @static
   */
  static parse(options, referenceOptions, path) {
    for (const option in options) {
      if (Object.prototype.hasOwnProperty.call(options, option)) {
        Validator.check(option, options, referenceOptions, path);
      }
    }
  }

  /**
   * Check every value. If the value is an object, call the parse function on that object.
   * @param {string} option
   * @param {object} options
   * @param {object} referenceOptions
   * @param {Array} path    | where to look for the actual option
   * @static
   */
  static check(option, options, referenceOptions, path) {
    if (referenceOptions[option] === undefined && referenceOptions.__any__ === undefined) {
      Validator.getSuggestion(option, referenceOptions, path);
      return;
    }
    let referenceOption = option;
    let is_object = true;
    if (referenceOptions[option] === undefined && referenceOptions.__any__ !== undefined) {
      // NOTE: This only triggers if the __any__ is in the top level of the options object.
      //       THAT'S A REALLY BAD PLACE TO ALLOW IT!!!!
      // TODO: Examine if needed, remove if possible

      // __any__ is a wildcard. Any value is accepted and will be further analysed by reference.
      referenceOption = "__any__";

      // if the any-subgroup is not a predefined object in the configurator,
      // we do not look deeper into the object.
      is_object = Validator.getType(options[option]) === "object";
    }
    let refOptionObj = referenceOptions[referenceOption];
    if (is_object && refOptionObj.__type__ !== undefined) {
      refOptionObj = refOptionObj.__type__;
    }
    Validator.checkFields(option, options, referenceOptions, referenceOption, refOptionObj, path);
  }

  /**
   *
   * @param {string}  option           | the option property
   * @param {object}  options          | The supplied options object
   * @param {object}  referenceOptions | The reference options containing all options and their allowed formats
   * @param {string}  referenceOption  | Usually this is the same as option, except when handling an __any__ tag.
   * @param {string}  refOptionObj     | This is the type object from the reference options
   * @param {Array}   path             | where in the object is the option
   * @static
   */
  static checkFields(option, options, referenceOptions, referenceOption, refOptionObj, path) {
    const log = function (message) {
      console.error("%c" + message + Validator.printLocation(path, option), VALIDATOR_PRINT_STYLE$1);
    };
    const optionType = Validator.getType(options[option]);
    const refOptionType = refOptionObj[optionType];
    if (refOptionType !== undefined) {
      // if the type is correct, we check if it is supposed to be one of a few select values
      if (Validator.getType(refOptionType) === "array" && _indexOfInstanceProperty(refOptionType).call(refOptionType, options[option]) === -1) {
        log('Invalid option detected in "' + option + '".' + " Allowed values are:" + Validator.print(refOptionType) + ' not "' + options[option] + '". ');
        errorFound = true;
      } else if (optionType === "object" && referenceOption !== "__any__") {
        path = copyAndExtendArray(path, option);
        Validator.parse(options[option], referenceOptions[referenceOption], path);
      }
    } else if (refOptionObj["any"] === undefined) {
      // type of the field is incorrect and the field cannot be any
      log('Invalid type received for "' + option + '". Expected: ' + Validator.print(_Object$keys(refOptionObj)) + ". Received [" + optionType + '] "' + options[option] + '"');
      errorFound = true;
    }
  }

  /**
   *
   * @param {object | boolean | number | string | Array.<number> | Date | Node | Moment | undefined | null} object
   * @returns {string}
   * @static
   */
  static getType(object) {
    const type = typeof object;
    if (type === "object") {
      if (object === null) {
        return "null";
      }
      if (object instanceof Boolean) {
        return "boolean";
      }
      if (object instanceof Number) {
        return "number";
      }
      if (object instanceof String) {
        return "string";
      }
      if (_Array$isArray(object)) {
        return "array";
      }
      if (object instanceof Date) {
        return "date";
      }
      if (object.nodeType !== undefined) {
        return "dom";
      }
      if (object._isAMomentObject === true) {
        return "moment";
      }
      return "object";
    } else if (type === "number") {
      return "number";
    } else if (type === "boolean") {
      return "boolean";
    } else if (type === "string") {
      return "string";
    } else if (type === undefined) {
      return "undefined";
    }
    return type;
  }

  /**
   * @param {string} option
   * @param {object} options
   * @param {Array.<string>} path
   * @static
   */
  static getSuggestion(option, options, path) {
    const localSearch = Validator.findInOptions(option, options, path, false);
    const globalSearch = Validator.findInOptions(option, allOptions$1, [], true);
    const localSearchThreshold = 8;
    const globalSearchThreshold = 4;
    let msg;
    if (localSearch.indexMatch !== undefined) {
      msg = " in " + Validator.printLocation(localSearch.path, option, "") + 'Perhaps it was incomplete? Did you mean: "' + localSearch.indexMatch + '"?\n\n';
    } else if (globalSearch.distance <= globalSearchThreshold && localSearch.distance > globalSearch.distance) {
      msg = " in " + Validator.printLocation(localSearch.path, option, "") + "Perhaps it was misplaced? Matching option found at: " + Validator.printLocation(globalSearch.path, globalSearch.closestMatch, "");
    } else if (localSearch.distance <= localSearchThreshold) {
      msg = '. Did you mean "' + localSearch.closestMatch + '"?' + Validator.printLocation(localSearch.path, option);
    } else {
      msg = ". Did you mean one of these: " + Validator.print(_Object$keys(options)) + Validator.printLocation(path, option);
    }
    console.error('%cUnknown option detected: "' + option + '"' + msg, VALIDATOR_PRINT_STYLE$1);
    errorFound = true;
  }

  /**
   * traverse the options in search for a match.
   * @param {string} option
   * @param {object} options
   * @param {Array} path    | where to look for the actual option
   * @param {boolean} [recursive]
   * @returns {{closestMatch: string, path: Array, distance: number}}
   * @static
   */
  static findInOptions(option, options, path) {
    let recursive = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : false;
    let min = 1e9;
    let closestMatch = "";
    let closestMatchPath = [];
    const lowerCaseOption = option.toLowerCase();
    let indexMatch = undefined;
    // oxlint-disable-next-line guard-for-in -- Options use prototype inheritance to override defaults, parent options, etc.
    for (const op in options) {
      let distance;
      if (options[op].__type__ !== undefined && recursive === true) {
        const result = Validator.findInOptions(option, options[op], copyAndExtendArray(path, op));
        if (min > result.distance) {
          closestMatch = result.closestMatch;
          closestMatchPath = result.path;
          min = result.distance;
          indexMatch = result.indexMatch;
        }
      } else {
        var _context0;
        if (_indexOfInstanceProperty(_context0 = op.toLowerCase()).call(_context0, lowerCaseOption) !== -1) {
          indexMatch = op;
        }
        distance = Validator.levenshteinDistance(option, op);
        if (min > distance) {
          closestMatch = op;
          closestMatchPath = copyArray(path);
          min = distance;
        }
      }
    }
    return {
      closestMatch: closestMatch,
      path: closestMatchPath,
      distance: min,
      indexMatch: indexMatch
    };
  }

  /**
   * @param {Array.<string>} path
   * @param {object} option
   * @param {string} prefix
   * @returns {string}
   * @static
   */
  static printLocation(path, option) {
    let prefix = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : "Problem value found at: \n";
    let str = "\n\n" + prefix + "options = {\n";
    for (let i = 0; i < path.length; i++) {
      for (let j = 0; j < i + 1; j++) {
        str += "  ";
      }
      str += path[i] + ": {\n";
    }
    for (let j = 0; j < path.length + 1; j++) {
      str += "  ";
    }
    str += option + "\n";
    for (let i = 0; i < path.length + 1; i++) {
      for (let j = 0; j < path.length - i; j++) {
        str += "  ";
      }
      str += "}\n";
    }
    return str + "\n\n";
  }

  /**
   * @param {object} options
   * @returns {string}
   * @static
   */
  static print(options) {
    return _JSON$stringify(options).replace(/(")|(\[)|(\])|(,"__type__")/g, "").replace(/(,)/g, ", ");
  }

  /**
   *  Compute the edit distance between the two given strings
   *  http://en.wikibooks.org/wiki/Algorithm_Implementation/Strings/Levenshtein_distance#JavaScript
   *
   *  Copyright (c) 2011 Andrei Mackenzie
   *
   *  Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
   *
   *  The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
   *
   *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
   * @param {string} a
   * @param {string} b
   * @returns {Array.<Array.<number>>}}
   * @static
   */
  static levenshteinDistance(a, b) {
    if (a.length === 0) return b.length;
    if (b.length === 0) return a.length;
    const matrix = [];

    // increment along the first column of each row
    let i;
    for (i = 0; i <= b.length; i++) {
      matrix[i] = [i];
    }

    // increment each column in the first row
    let j;
    for (j = 0; j <= a.length; j++) {
      matrix[0][j] = j;
    }

    // Fill in the rest of the matrix
    for (i = 1; i <= b.length; i++) {
      for (j = 1; j <= a.length; j++) {
        if (b.charAt(i - 1) == a.charAt(j - 1)) {
          matrix[i][j] = matrix[i - 1][j - 1];
        } else {
          matrix[i][j] = Math.min(matrix[i - 1][j - 1] + 1,
          // substitution
          Math.min(matrix[i][j - 1] + 1,
          // insertion
          matrix[i - 1][j] + 1)); // deletion
        }
      }
    }
    return matrix[b.length][a.length];
  }
};
const VALIDATOR_PRINT_STYLE = VALIDATOR_PRINT_STYLE$1;
const Validator = Validator$1;

/**
 * Helper class to make working with related min and max values easier.
 *
 * The range is inclusive; a given value is considered part of the range if:
 *
 *    this.min <= value <= this.max
 */
function Range() {
  this.min = undefined;
  this.max = undefined;
}

/**
 * Adjust the range so that the passed value fits in it.
 *
 * If the value is outside of the current extremes, adjust
 * the min or max so that the value is within the range.
 * @param {number} value Numeric value to fit in range
 */
Range.prototype.adjust = function (value) {
  if (value === undefined) return;
  if (this.min === undefined || this.min > value) {
    this.min = value;
  }
  if (this.max === undefined || this.max < value) {
    this.max = value;
  }
};

/**
 * Adjust the current range so that the passed range fits in it.
 * @param {Range} range Range instance to fit in current instance
 */
Range.prototype.combine = function (range) {
  this.add(range.min);
  this.add(range.max);
};

/**
 * Expand the range by the given value
 *
 * min will be lowered by given value;
 * max will be raised by given value
 *
 * Shrinking by passing a negative value is allowed.
 * @param {number} val Amount by which to expand or shrink current range with
 */
Range.prototype.expand = function (val) {
  if (val === undefined) {
    return;
  }
  const newMin = this.min - val;
  const newMax = this.max + val;

  // Note that following allows newMin === newMax.
  // This should be OK, since method expand() allows this also.
  if (newMin > newMax) {
    throw new Error("Passed expansion value makes range invalid");
  }
  this.min = newMin;
  this.max = newMax;
};

/**
 * Determine the full range width of current instance.
 * @returns {num} The calculated width of this range
 */
Range.prototype.range = function () {
  return this.max - this.min;
};

/**
 * Determine the central point of current instance.
 * @returns {number} the value in the middle of min and max
 */
Range.prototype.center = function () {
  return (this.min + this.max) / 2;
};

var es_array_reverse = {};

var hasRequiredEs_array_reverse;

function requireEs_array_reverse () {
	if (hasRequiredEs_array_reverse) return es_array_reverse;
	hasRequiredEs_array_reverse = 1;
	var $ = /*@__PURE__*/ require_export();
	var uncurryThis = /*@__PURE__*/ requireFunctionUncurryThis();
	var isArray = /*@__PURE__*/ requireIsArray$3();

	var nativeReverse = uncurryThis([].reverse);
	var test = [1, 2];

	// `Array.prototype.reverse` method
	// https://tc39.es/ecma262/#sec-array.prototype.reverse
	// fix for Safari 12.0 bug
	// https://bugs.webkit.org/show_bug.cgi?id=188794
	$({ target: 'Array', proto: true, forced: String(test) === String(test.reverse()) }, {
	  reverse: function reverse() {
	    // eslint-disable-next-line no-self-assign -- dirty hack
	    if (isArray(this)) this.length = this.length;
	    return nativeReverse(this);
	  }
	});
	return es_array_reverse;
}

var reverse$3;
var hasRequiredReverse$3;

function requireReverse$3 () {
	if (hasRequiredReverse$3) return reverse$3;
	hasRequiredReverse$3 = 1;
	requireEs_array_reverse();
	var getBuiltInPrototypeMethod = /*@__PURE__*/ requireGetBuiltInPrototypeMethod();

	reverse$3 = getBuiltInPrototypeMethod('Array', 'reverse');
	return reverse$3;
}

var reverse$2;
var hasRequiredReverse$2;

function requireReverse$2 () {
	if (hasRequiredReverse$2) return reverse$2;
	hasRequiredReverse$2 = 1;
	var isPrototypeOf = /*@__PURE__*/ requireObjectIsPrototypeOf();
	var method = /*@__PURE__*/ requireReverse$3();

	var ArrayPrototype = Array.prototype;

	reverse$2 = function (it) {
	  var own = it.reverse;
	  return it === ArrayPrototype || (isPrototypeOf(ArrayPrototype, it) && own === ArrayPrototype.reverse) ? method : own;
	};
	return reverse$2;
}

var reverse$1;
var hasRequiredReverse$1;

function requireReverse$1 () {
	if (hasRequiredReverse$1) return reverse$1;
	hasRequiredReverse$1 = 1;
	var parent = /*@__PURE__*/ requireReverse$2();

	reverse$1 = parent;
	return reverse$1;
}

var reverse;
var hasRequiredReverse;

function requireReverse () {
	if (hasRequiredReverse) return reverse;
	hasRequiredReverse = 1;
	reverse = /*@__PURE__*/ requireReverse$1();
	return reverse;
}

var reverseExports = requireReverse();
var _reverseInstanceProperty = /*@__PURE__*/getDefaultExportFromCjs(reverseExports);

// enumerate the available styles
const STYLE = {
  BAR: 0,
  BARCOLOR: 1,
  BARSIZE: 2,
  DOT: 3,
  DOTLINE: 4,
  DOTCOLOR: 5,
  DOTSIZE: 6,
  GRID: 7,
  LINE: 8,
  SURFACE: 9
};

// The string representations of the styles
const STYLENAME = {
  dot: STYLE.DOT,
  "dot-line": STYLE.DOTLINE,
  "dot-color": STYLE.DOTCOLOR,
  "dot-size": STYLE.DOTSIZE,
  line: STYLE.LINE,
  grid: STYLE.GRID,
  surface: STYLE.SURFACE,
  bar: STYLE.BAR,
  "bar-color": STYLE.BARCOLOR,
  "bar-size": STYLE.BARSIZE
};

/**
 * Field names in the options hash which are of relevance to the user.
 *
 * Specifically, these are the fields which require no special handling,
 * and can be directly copied over.
 */
const OPTIONKEYS = ["width", "height", "filterLabel", "legendLabel", "xLabel", "yLabel", "zLabel", "xValueLabel", "yValueLabel", "zValueLabel", "showXAxis", "showYAxis", "showZAxis", "showGrayBottom", "showGrid", "showPerspective", "showShadow", "showSurfaceGrid", "keepAspectRatio", "rotateAxisLabels", "verticalRatio", "dotSizeRatio", "dotSizeMinFraction", "dotSizeMaxFraction", "showAnimationControls", "animationInterval", "animationPreload", "animationAutoStart", "axisColor", "axisFontSize", "axisFontType", "gridColor", "xCenter", "yCenter", "zoomable", "tooltipDelay", "ctrlToZoom"];

/**
 * Field names in the options hash which are of relevance to the user.
 *
 * Same as OPTIONKEYS, but internally these fields are stored with
 * prefix 'default' in the name.
 */
const PREFIXEDOPTIONKEYS = ["xBarWidth", "yBarWidth", "valueMin", "valueMax", "xMin", "xMax", "xStep", "yMin", "yMax", "yStep", "zMin", "zMax", "zStep"];

// Placeholder for DEFAULTS reference
let DEFAULTS = undefined;

/**
 * Check if given hash is empty.
 *
 * Source: http://stackoverflow.com/a/679937
 * @param {object} obj
 * @returns {boolean}
 */
function isEmpty(obj) {
  for (const prop in obj) {
    if (Object.prototype.hasOwnProperty.call(obj, prop)) return false;
  }
  return true;
}

/**
 * Make first letter of parameter upper case.
 *
 * Source: http://stackoverflow.com/a/1026087
 * @param {string} str
 * @returns {string}
 */
function capitalize(str) {
  if (str === undefined || str === "" || typeof str != "string") {
    return str;
  }
  return str.charAt(0).toUpperCase() + _sliceInstanceProperty(str).call(str, 1);
}

/**
 * Add a prefix to a field name, taking style guide into account
 * @param {string} prefix
 * @param {string} fieldName
 * @returns {string}
 */
function prefixFieldName(prefix, fieldName) {
  if (prefix === undefined || prefix === "") {
    return fieldName;
  }
  return prefix + capitalize(fieldName);
}

/**
 * Forcibly copy fields from src to dst in a controlled manner.
 *
 * A given field in dst will always be overwitten. If this field
 * is undefined or not present in src, the field in dst will
 * be explicitly set to undefined.
 *
 * The intention here is to be able to reset all option fields.
 *
 * Only the fields mentioned in array 'fields' will be handled.
 * @param {object} src
 * @param {object} dst
 * @param {Array<string>} fields array with names of fields to copy
 * @param {string} [prefix] prefix to use for the target fields.
 */
function forceCopy(src, dst, fields, prefix) {
  let srcKey;
  let dstKey;
  for (let i = 0; i < fields.length; ++i) {
    srcKey = fields[i];
    dstKey = prefixFieldName(prefix, srcKey);
    dst[dstKey] = src[srcKey];
  }
}

/**
 * Copy fields from src to dst in a safe and controlled manner.
 *
 * Only the fields mentioned in array 'fields' will be copied over,
 * and only if these are actually defined.
 * @param {object} src
 * @param {object} dst
 * @param {Array<string>} fields array with names of fields to copy
 * @param {string} [prefix] prefix to use for the target fields.
 */
function safeCopy(src, dst, fields, prefix) {
  let srcKey;
  let dstKey;
  for (let i = 0; i < fields.length; ++i) {
    srcKey = fields[i];
    if (src[srcKey] === undefined) continue;
    dstKey = prefixFieldName(prefix, srcKey);
    dst[dstKey] = src[srcKey];
  }
}

/**
 * Initialize dst with the values in src.
 *
 * src is the hash with the default values.
 * A reference DEFAULTS to this hash is stored locally for
 * further handling.
 *
 * For now, dst is assumed to be a Graph3d instance.
 * @param {object} src
 * @param {object} dst
 */
function setDefaults(src, dst) {
  if (src === undefined || isEmpty(src)) {
    throw new Error("No DEFAULTS passed");
  }
  if (dst === undefined) {
    throw new Error("No dst passed");
  }

  // Remember defaults for future reference
  DEFAULTS = src;

  // Handle the defaults which can be simply copied over
  forceCopy(src, dst, OPTIONKEYS);
  forceCopy(src, dst, PREFIXEDOPTIONKEYS, "default");

  // Handle the more complex ('special') fields
  setSpecialSettings(src, dst);

  // Following are internal fields, not part of the user settings
  dst.margin = 10; // px
  dst.showTooltip = false;
  dst.onclick_callback = null;
  dst.eye = new Point3d(0, 0, -1); // TODO: set eye.z about 3/4 of the width of the window?
}

/**
 *
 * @param {object} options
 * @param {object} dst
 */
function setOptions(options, dst) {
  if (options === undefined) {
    return;
  }
  if (dst === undefined) {
    throw new Error("No dst passed");
  }
  if (DEFAULTS === undefined || isEmpty(DEFAULTS)) {
    throw new Error("DEFAULTS not set for module Settings");
  }

  // Handle the parameters which can be simply copied over
  safeCopy(options, dst, OPTIONKEYS);
  safeCopy(options, dst, PREFIXEDOPTIONKEYS, "default");

  // Handle the more complex ('special') fields
  setSpecialSettings(options, dst);
}

/**
 * Special handling for certain parameters
 *
 * 'Special' here means: setting requires more than a simple copy
 * @param {object} src
 * @param {object} dst
 */
function setSpecialSettings(src, dst) {
  if (src.backgroundColor !== undefined) {
    setBackgroundColor(src.backgroundColor, dst);
  }
  setDataColor(src.dataColor, dst);
  setStyle(src.style, dst);
  if (src.surfaceColors !== undefined) {
    console.warn("`options.surfaceColors` is deprecated and may be removed in a future " + "version. Please use `options.colormap` instead. Note that the `colormap` " + "option uses the inverse array ordering (running from vMin to vMax).");
    if (src.colormap !== undefined) {
      throw new Error("The `colormap` and `surfaceColors` options are mutually exclusive.");
    }
    if (dst.style !== "surface") {
      console.warn("Ignoring `surfaceColors` in graph style `" + dst.style + "` for " + "backward compatibility (only effective in `surface` plots).");
    } else {
      setSurfaceColor(src.surfaceColors, dst);
    }
  } else {
    setColormap(src.colormap, dst);
  }
  setShowLegend(src.showLegend, dst);
  setCameraPosition(src.cameraPosition, dst);

  // As special fields go, this is an easy one; just a translation of the name.
  // Can't use this.tooltip directly, because that field exists internally
  if (src.tooltip !== undefined) {
    dst.showTooltip = src.tooltip;
  }
  if (src.onclick != undefined) {
    dst.onclick_callback = src.onclick;
    console.warn("`options.onclick` is deprecated and may be removed in a future version." + " Please use `Graph3d.on('click', handler)` instead.");
  }
  if (src.tooltipStyle !== undefined) {
    selectiveDeepExtend(["tooltipStyle"], dst, src);
  }
}

/**
 * Set the value of setting 'showLegend'
 *
 * This depends on the value of the style fields, so it must be called
 * after the style field has been initialized.
 * @param {boolean} showLegend
 * @param {object} dst
 */
function setShowLegend(showLegend, dst) {
  if (showLegend === undefined) {
    // If the default was auto, make a choice for this field
    const isAutoByDefault = DEFAULTS.showLegend === undefined;
    if (isAutoByDefault) {
      // these styles default to having legends
      const isLegendGraphStyle = dst.style === STYLE.DOTCOLOR || dst.style === STYLE.DOTSIZE;
      dst.showLegend = isLegendGraphStyle;
    }
  } else {
    dst.showLegend = showLegend;
  }
}

/**
 * Retrieve the style index from given styleName
 * @param {string} styleName  Style name such as 'dot', 'grid', 'dot-line'
 * @returns {number} styleNumber Enumeration value representing the style, or -1
 *                when not found
 */
function getStyleNumberByName(styleName) {
  const number = STYLENAME[styleName];
  if (number === undefined) {
    return -1;
  }
  return number;
}

/**
 * Check if given number is a valid style number.
 * @param {string | number} style
 * @returns {boolean} true if valid, false otherwise
 */
function checkStyleNumber(style) {
  let valid = false;
  for (const n in STYLE) {
    if (STYLE[n] === style) {
      valid = true;
      break;
    }
  }
  return valid;
}

/**
 *
 * @param {string | number} style
 * @param {object} dst
 */
function setStyle(style, dst) {
  if (style === undefined) {
    return; // Nothing to do
  }
  let styleNumber;
  if (typeof style === "string") {
    styleNumber = getStyleNumberByName(style);
    if (styleNumber === -1) {
      throw new Error("Style '" + style + "' is invalid");
    }
  } else {
    // Do a pedantic check on style number value
    if (!checkStyleNumber(style)) {
      throw new Error("Style '" + style + "' is invalid");
    }
    styleNumber = style;
  }
  dst.style = styleNumber;
}

/**
 * Set the background styling for the graph
 * @param {string | {fill: string, stroke: string, strokeWidth: string}} backgroundColor
 * @param {object} dst
 */
function setBackgroundColor(backgroundColor, dst) {
  let fill = "white";
  let stroke = "gray";
  let strokeWidth = 1;
  if (typeof backgroundColor === "string") {
    fill = backgroundColor;
    stroke = "none";
    strokeWidth = 0;
  } else if (typeof backgroundColor === "object") {
    if (_fillInstanceProperty(backgroundColor) !== undefined) fill = _fillInstanceProperty(backgroundColor);
    if (backgroundColor.stroke !== undefined) stroke = backgroundColor.stroke;
    if (backgroundColor.strokeWidth !== undefined) strokeWidth = backgroundColor.strokeWidth;
  } else {
    throw new Error("Unsupported type of backgroundColor");
  }
  dst.frame.style.backgroundColor = fill;
  dst.frame.style.borderColor = stroke;
  dst.frame.style.borderWidth = strokeWidth + "px";
  dst.frame.style.borderStyle = "solid";
}

/**
 *
 * @param {string | object} dataColor
 * @param {object} dst
 */
function setDataColor(dataColor, dst) {
  if (dataColor === undefined) {
    return; // Nothing to do
  }
  if (dst.dataColor === undefined) {
    dst.dataColor = {};
  }
  if (typeof dataColor === "string") {
    dst.dataColor.fill = dataColor;
    dst.dataColor.stroke = dataColor;
  } else {
    if (_fillInstanceProperty(dataColor)) {
      dst.dataColor.fill = _fillInstanceProperty(dataColor);
    }
    if (dataColor.stroke) {
      dst.dataColor.stroke = dataColor.stroke;
    }
    if (dataColor.strokeWidth !== undefined) {
      dst.dataColor.strokeWidth = dataColor.strokeWidth;
    }
  }
}

/**
 *
 * @param {object | Array<string>} surfaceColors Either an object that describes the HUE, or an array of HTML hex color codes
 * @param {object} dst
 */
function setSurfaceColor(surfaceColors, dst) {
  if (surfaceColors === undefined || surfaceColors === true) {
    return; // Nothing to do
  }
  if (surfaceColors === false) {
    dst.surfaceColors = undefined;
    return;
  }
  if (dst.surfaceColors === undefined) {
    dst.surfaceColors = {};
  }
  let rgbColors;
  if (_Array$isArray(surfaceColors)) {
    rgbColors = parseColorArray(surfaceColors);
  } else if (typeof surfaceColors === "object") {
    rgbColors = parseColorObject(surfaceColors.hue);
  } else {
    throw new Error("Unsupported type of surfaceColors");
  }
  // for some reason surfaceColors goes from vMax to vMin:
  _reverseInstanceProperty(rgbColors).call(rgbColors);
  dst.colormap = rgbColors;
}

/**
 *
 * @param {object | Array<string>} colormap Either an object that describes the HUE, or an array of HTML hex color codes
 * @param {object} dst
 */
function setColormap(colormap, dst) {
  if (colormap === undefined) {
    return;
  }
  let rgbColors;
  if (_Array$isArray(colormap)) {
    rgbColors = parseColorArray(colormap);
  } else if (typeof colormap === "object") {
    rgbColors = parseColorObject(colormap.hue);
  } else if (typeof colormap === "function") {
    rgbColors = colormap;
  } else {
    throw new Error("Unsupported type of colormap");
  }
  dst.colormap = rgbColors;
}

/**
 *
 * @param {Array} colormap
 */
function parseColorArray(colormap) {
  if (colormap.length < 2) {
    throw new Error("Colormap array length must be 2 or above.");
  }
  return _mapInstanceProperty(colormap).call(colormap, function (colorCode) {
    if (!isValidHex(colorCode)) {
      throw new Error("Invalid hex color code supplied to colormap.");
    }
    return hexToRGB(colorCode);
  });
}

/**
 * Converts an object to a certain amount of hex color stops. At which point:
 * the HTML hex color codes is converted into an RGB color object.
 * @param {object} hues
 */
function parseColorObject(hues) {
  if (hues === undefined) {
    throw new Error("Unsupported type of colormap");
  }
  if (!(hues.saturation >= 0 && hues.saturation <= 100)) {
    throw new Error("Saturation is out of bounds. Expected range is 0-100.");
  }
  if (!(hues.brightness >= 0 && hues.brightness <= 100)) {
    throw new Error("Brightness is out of bounds. Expected range is 0-100.");
  }
  if (!(hues.colorStops >= 2)) {
    throw new Error("colorStops is out of bounds. Expected 2 or above.");
  }
  const hueStep = (hues.end - hues.start) / (hues.colorStops - 1);
  const rgbColors = [];
  for (let i = 0; i < hues.colorStops; ++i) {
    const hue = (hues.start + hueStep * i) % 360 / 360;
    rgbColors.push(HSVToRGB(hue < 0 ? hue + 1 : hue, hues.saturation / 100, hues.brightness / 100));
  }
  return rgbColors;
}

/**
 *
 * @param {object} cameraPosition
 * @param {object} dst
 */
function setCameraPosition(cameraPosition, dst) {
  const camPos = cameraPosition;
  if (camPos === undefined) {
    return;
  }
  if (dst.camera === undefined) {
    dst.camera = new Camera();
  }
  dst.camera.setArmRotation(camPos.horizontal, camPos.vertical);
  dst.camera.setArmLength(camPos.distance);
}

/**
 * Creates a container for all data of one specific 3D-graph.
 *
 * On construction, the container is totally empty; the data
 * needs to be initialized with method initializeData().
 * Failure to do so will result in the following exception begin thrown
 * on instantiation of Graph3D:
 *
 * Error: Array, DataSet, or DataView expected
 * @function Object() { [native code] } DataGroup
 */
function DataGroup() {
  this.dataTable = null; // The original data table
}

/**
 * Initializes the instance from the passed data.
 *
 * Calculates minimum and maximum values and column index values.
 *
 * The graph3d instance is used internally to access the settings for
 * the given instance.
 * TODO: Pass settings only instead.
 * @param {vis.Graph3d}  graph3d Reference to the calling Graph3D instance.
 * @param {Array | DataSet | DataView} rawData The data containing the items for
 *                                             the Graph.
 * @param {number}   style   Style Number
 * @returns {Array.<object>}
 */
DataGroup.prototype.initializeData = function (graph3d, rawData, style) {
  if (rawData === undefined) return;
  if (_Array$isArray(rawData)) {
    rawData = new DataSet(rawData);
  }
  let data;
  if (rawData instanceof DataSet || rawData instanceof DataView) {
    data = rawData.get();
  } else {
    throw new Error("Array, DataSet, or DataView expected");
  }
  if (data.length == 0) return;
  this.style = style;

  // unsubscribe from the dataTable
  if (this.dataSet) {
    this.dataSet.off("*", this._onChange);
  }
  this.dataSet = rawData;
  this.dataTable = data;

  // subscribe to changes in the dataset
  const me = this;
  this._onChange = function () {
    graph3d.setData(me.dataSet);
  };
  this.dataSet.on("*", this._onChange);

  // determine the location of x,y,z,value,filter columns
  this.colX = "x";
  this.colY = "y";
  this.colZ = "z";
  const withBars = graph3d.hasBars(style);

  // determine barWidth from data
  if (withBars) {
    if (graph3d.defaultXBarWidth !== undefined) {
      this.xBarWidth = graph3d.defaultXBarWidth;
    } else {
      this.xBarWidth = this.getSmallestDifference(data, this.colX) || 1;
    }
    if (graph3d.defaultYBarWidth !== undefined) {
      this.yBarWidth = graph3d.defaultYBarWidth;
    } else {
      this.yBarWidth = this.getSmallestDifference(data, this.colY) || 1;
    }
  }

  // calculate minima and maxima
  this._initializeRange(data, this.colX, graph3d, withBars);
  this._initializeRange(data, this.colY, graph3d, withBars);
  this._initializeRange(data, this.colZ, graph3d, false);
  if (Object.prototype.hasOwnProperty.call(data[0], "style")) {
    this.colValue = "style";
    const valueRange = this.getColumnRange(data, this.colValue);
    this._setRangeDefaults(valueRange, graph3d.defaultValueMin, graph3d.defaultValueMax);
    this.valueRange = valueRange;
  } else {
    this.colValue = "z";
    this.valueRange = this.zRange;
  }

  // Initialize data filter if a filter column is provided
  const table = this.getDataTable();
  if (Object.prototype.hasOwnProperty.call(table[0], "filter")) {
    if (this.dataFilter === undefined) {
      this.dataFilter = new Filter(this, "filter", graph3d);
      this.dataFilter.setOnLoadCallback(function () {
        graph3d.redraw();
      });
    }
  }
  let dataPoints;
  if (this.dataFilter) {
    // apply filtering
    dataPoints = this.dataFilter._getDataPoints();
  } else {
    // no filtering. load all data
    dataPoints = this._getDataPoints(this.getDataTable());
  }
  return dataPoints;
};

/**
 * Collect the range settings for the given data column.
 *
 * This internal method is intended to make the range
 * initalization more generic.
 *
 * TODO: if/when combined settings per axis defined, get rid of this.
 * @private
 * @param {'x'|'y'|'z'} column  The data column to process
 * @param {vis.Graph3d} graph3d Reference to the calling Graph3D instance;
 *                              required for access to settings
 * @returns {object}
 */
DataGroup.prototype._collectRangeSettings = function (column, graph3d) {
  var _context;
  const index = _indexOfInstanceProperty(_context = ["x", "y", "z"]).call(_context, column);
  if (index == -1) {
    throw new Error("Column '" + column + "' invalid");
  }
  const upper = column.toUpperCase();
  return {
    barWidth: this[column + "BarWidth"],
    min: graph3d["default" + upper + "Min"],
    max: graph3d["default" + upper + "Max"],
    step: graph3d["default" + upper + "Step"],
    range_label: column + "Range",
    // Name of instance field to write to
    step_label: column + "Step" // Name of instance field to write to
  };
};

/**
 * Initializes the settings per given column.
 *
 * TODO: if/when combined settings per axis defined, rewrite this.
 * @private
 * @param {DataSet | DataView} data     The data containing the items for the Graph
 * @param {'x'|'y'|'z'}        column   The data column to process
 * @param {vis.Graph3d}        graph3d  Reference to the calling Graph3D instance;
 *                                      required for access to settings
 * @param {boolean}            withBars True if initializing for bar graph
 */
DataGroup.prototype._initializeRange = function (data, column, graph3d, withBars) {
  const NUMSTEPS = 5;
  const settings = this._collectRangeSettings(column, graph3d);
  const range = this.getColumnRange(data, column);
  if (withBars && column != "z") {
    // Safeguard for 'z'; it doesn't have a bar width
    range.expand(settings.barWidth / 2);
  }
  this._setRangeDefaults(range, settings.min, settings.max);
  this[settings.range_label] = range;
  this[settings.step_label] = settings.step !== undefined ? settings.step : range.range() / NUMSTEPS;
};

/**
 * Creates a list with all the different values in the data for the given column.
 *
 * If no data passed, use the internal data of this instance.
 * @param {'x'|'y'|'z'}                column The data column to process
 * @param {DataSet|DataView|undefined} data   The data containing the items for the Graph
 * @returns {Array} All distinct values in the given column data, sorted ascending.
 */
DataGroup.prototype.getDistinctValues = function (column, data) {
  if (data === undefined) {
    data = this.dataTable;
  }
  const values = [];
  for (let i = 0; i < data.length; i++) {
    const value = data[i][column] || 0;
    if (_indexOfInstanceProperty(values).call(values, value) === -1) {
      values.push(value);
    }
  }
  return values.toSorted(function (a, b) {
    return a - b;
  });
};

/**
 * Determine the smallest difference between the values for given
 * column in the passed data set.
 * @param {DataSet|DataView|undefined} data   The data containing the items for the Graph
 * @param {'x'|'y'|'z'}                column The data column to process
 * @returns {number|null} Smallest difference value or
 *                        null, if it can't be determined.
 */
DataGroup.prototype.getSmallestDifference = function (data, column) {
  const values = this.getDistinctValues(data, column);

  // Get all the distinct diffs
  // Array values is assumed to be sorted here
  let smallest_diff = null;
  for (let i = 1; i < values.length; i++) {
    const diff = values[i] - values[i - 1];
    if (smallest_diff == null || smallest_diff > diff) {
      smallest_diff = diff;
    }
  }
  return smallest_diff;
};

/**
 * Get the absolute min/max values for the passed data column.
 * @param {DataSet|DataView|undefined} data   The data containing the items for the Graph
 * @param {'x'|'y'|'z'}                column The data column to process
 * @returns {Range} A Range instance with min/max members properly set.
 */
DataGroup.prototype.getColumnRange = function (data, column) {
  const range = new Range();

  // Adjust the range so that it covers all values in the passed data elements.
  for (let i = 0; i < data.length; i++) {
    const item = data[i][column];
    range.adjust(item);
  }
  return range;
};

/**
 * Determines the number of rows in the current data.
 * @returns {number}
 */
DataGroup.prototype.getNumberOfRows = function () {
  return this.dataTable.length;
};

/**
 * Set default values for range
 *
 * The default values override the range values, if defined.
 *
 * Because it's possible that only defaultMin or defaultMax is set, it's better
 * to pass in a range already set with the min/max set from the data. Otherwise,
 * it's quite hard to process the min/max properly.
 * @param {vis.Range} range
 * @param {number} [defaultMin]
 * @param {number} [defaultMax]
 * @private
 */
DataGroup.prototype._setRangeDefaults = function (range, defaultMin, defaultMax) {
  if (defaultMin !== undefined) {
    range.min = defaultMin;
  }
  if (defaultMax !== undefined) {
    range.max = defaultMax;
  }

  // This is the original way that the default min/max values were adjusted.
  // TODO: Perhaps it's better if an error is thrown if the values do not agree.
  //       But this will change the behaviour.
  if (range.max <= range.min) range.max = range.min + 1;
};
DataGroup.prototype.getDataTable = function () {
  return this.dataTable;
};
DataGroup.prototype.getDataSet = function () {
  return this.dataSet;
};

/**
 * Return all data values as a list of Point3d objects
 * @param {Array.<object>} data
 * @returns {Array.<object>}
 */
DataGroup.prototype.getDataPoints = function (data) {
  const dataPoints = [];
  for (let i = 0; i < data.length; i++) {
    const point = new Point3d();
    point.x = data[i][this.colX] || 0;
    point.y = data[i][this.colY] || 0;
    point.z = data[i][this.colZ] || 0;
    point.data = data[i];
    point.value = data[i][this.colValue] || 0;
    const obj = {};
    obj.point = point;
    obj.bottom = new Point3d(point.x, point.y, this.zRange.min);
    obj.trans = undefined;
    obj.screen = undefined;
    dataPoints.push(obj);
  }
  return dataPoints;
};

/**
 * Copy all values from the data table to a matrix.
 *
 * The provided values are supposed to form a grid of (x,y) positions.
 * @param {Array.<object>} data
 * @returns {Array.<object>}
 * @private
 */
DataGroup.prototype.initDataAsMatrix = function (data) {
  // TODO: store the created matrix dataPoints in the filters instead of
  //       reloading each time.
  let x, y, i, obj;

  // create two lists with all present x and y values
  const dataX = this.getDistinctValues(this.colX, data);
  const dataY = this.getDistinctValues(this.colY, data);
  const dataPoints = this.getDataPoints(data);

  // create a grid, a 2d matrix, with all values.
  const dataMatrix = []; // temporary data matrix
  for (i = 0; i < dataPoints.length; i++) {
    obj = dataPoints[i];

    // TODO: implement Array().indexOf() for Internet Explorer
    const xIndex = _indexOfInstanceProperty(dataX).call(dataX, obj.point.x);
    const yIndex = _indexOfInstanceProperty(dataY).call(dataY, obj.point.y);
    if (dataMatrix[xIndex] === undefined) {
      dataMatrix[xIndex] = [];
    }
    dataMatrix[xIndex][yIndex] = obj;
  }

  // fill in the pointers to the neighbors.
  for (x = 0; x < dataMatrix.length; x++) {
    for (y = 0; y < dataMatrix[x].length; y++) {
      if (dataMatrix[x][y]) {
        dataMatrix[x][y].pointRight = x < dataMatrix.length - 1 ? dataMatrix[x + 1][y] : undefined;
        dataMatrix[x][y].pointTop = y < dataMatrix[x].length - 1 ? dataMatrix[x][y + 1] : undefined;
        dataMatrix[x][y].pointCross = x < dataMatrix.length - 1 && y < dataMatrix[x].length - 1 ? dataMatrix[x + 1][y + 1] : undefined;
      }
    }
  }
  return dataPoints;
};

/**
 * Return common information, if present
 * @returns {string}
 */
DataGroup.prototype.getInfo = function () {
  const dataFilter = this.dataFilter;
  if (!dataFilter) return undefined;
  return dataFilter.getLabel() + ": " + dataFilter.getSelectedValue();
};

/**
 * Reload the data
 */
DataGroup.prototype.reload = function () {
  if (this.dataTable) {
    this.setData(this.dataTable);
  }
};

/**
 * Filter the data based on the current filter
 * @param   {Array} data
 * @returns {Array} dataPoints Array with point objects which can be drawn on
 *                             screen
 */
DataGroup.prototype._getDataPoints = function (data) {
  let dataPoints = [];
  if (this.style === STYLE.GRID || this.style === STYLE.SURFACE) {
    dataPoints = this.initDataAsMatrix(data);
  } else {
    // 'dot', 'dot-line', etc.
    dataPoints = this.getDataPoints(data);
    if (this.style === STYLE.LINE) {
      // Add next member points for line drawing
      for (let i = 0; i < dataPoints.length; i++) {
        if (i > 0) {
          dataPoints[i - 1].pointNext = dataPoints[i];
        }
      }
    }
  }
  return dataPoints;
};

/**
 * This object contains all possible options. It will check if the types are correct, if required if the option is one
 * of the allowed values.
 *
 * __any__ means that the name of the property does not matter.
 * __type__ is a required field for all objects and contains the allowed types of all objects
 */
const string = "string";
const bool = "boolean";
const number = "number";
const object = "object"; // should only be in a __type__ property
const array = "array";
// Following not used here, but useful for reference
//let dom      = 'dom';
//let any      = 'any';

const colorOptions = {
  fill: {
    string
  },
  stroke: {
    string
  },
  strokeWidth: {
    number
  },
  __type__: {
    string,
    object,
    undefined: "undefined"
  }
};
const surfaceColorsOptions = {
  hue: {
    start: {
      number
    },
    end: {
      number
    },
    saturation: {
      number
    },
    brightness: {
      number
    },
    colorStops: {
      number
    },
    __type__: {
      object
    }
  },
  __type__: {
    boolean: bool,
    array,
    object,
    undefined: "undefined"
  }
};
const colormapOptions = {
  hue: {
    start: {
      number
    },
    end: {
      number
    },
    saturation: {
      number
    },
    brightness: {
      number
    },
    colorStops: {
      number
    },
    __type__: {
      object
    }
  },
  __type__: {
    array,
    object,
    function: "function",
    undefined: "undefined"
  }
};

/**
 * Order attempted to be alphabetical.
 *   - x/y/z-prefixes ignored in sorting
 *   - __type__ always at end
 *   - globals at end
 */
const allOptions = {
  animationAutoStart: {
    boolean: bool,
    undefined: "undefined"
  },
  animationInterval: {
    number
  },
  animationPreload: {
    boolean: bool
  },
  axisColor: {
    string
  },
  axisFontSize: {
    number: number
  },
  axisFontType: {
    string: string
  },
  backgroundColor: colorOptions,
  xBarWidth: {
    number,
    undefined: "undefined"
  },
  yBarWidth: {
    number,
    undefined: "undefined"
  },
  cameraPosition: {
    distance: {
      number
    },
    horizontal: {
      number
    },
    vertical: {
      number
    },
    __type__: {
      object
    }
  },
  zoomable: {
    boolean: bool
  },
  ctrlToZoom: {
    boolean: bool
  },
  xCenter: {
    string
  },
  yCenter: {
    string
  },
  colormap: colormapOptions,
  dataColor: colorOptions,
  dotSizeMinFraction: {
    number
  },
  dotSizeMaxFraction: {
    number
  },
  dotSizeRatio: {
    number
  },
  filterLabel: {
    string
  },
  gridColor: {
    string
  },
  onclick: {
    function: "function"
  },
  keepAspectRatio: {
    boolean: bool
  },
  xLabel: {
    string
  },
  yLabel: {
    string
  },
  zLabel: {
    string
  },
  legendLabel: {
    string
  },
  xMin: {
    number,
    undefined: "undefined"
  },
  yMin: {
    number,
    undefined: "undefined"
  },
  zMin: {
    number,
    undefined: "undefined"
  },
  xMax: {
    number,
    undefined: "undefined"
  },
  yMax: {
    number,
    undefined: "undefined"
  },
  zMax: {
    number,
    undefined: "undefined"
  },
  showAnimationControls: {
    boolean: bool,
    undefined: "undefined"
  },
  showGrayBottom: {
    boolean: bool
  },
  showGrid: {
    boolean: bool
  },
  showLegend: {
    boolean: bool,
    undefined: "undefined"
  },
  showPerspective: {
    boolean: bool
  },
  showShadow: {
    boolean: bool
  },
  showSurfaceGrid: {
    boolean: bool
  },
  showXAxis: {
    boolean: bool
  },
  showYAxis: {
    boolean: bool
  },
  showZAxis: {
    boolean: bool
  },
  rotateAxisLabels: {
    boolean: bool
  },
  surfaceColors: surfaceColorsOptions,
  xStep: {
    number,
    undefined: "undefined"
  },
  yStep: {
    number,
    undefined: "undefined"
  },
  zStep: {
    number,
    undefined: "undefined"
  },
  style: {
    number,
    // TODO: either Graph3d.DEFAULT has string, or number allowed in documentation
    string: ["bar", "bar-color", "bar-size", "dot", "dot-line", "dot-color", "dot-size", "line", "grid", "surface"]
  },
  tooltip: {
    boolean: bool,
    function: "function"
  },
  tooltipDelay: {
    number: number
  },
  tooltipStyle: {
    content: {
      color: {
        string
      },
      background: {
        string
      },
      border: {
        string
      },
      borderRadius: {
        string
      },
      boxShadow: {
        string
      },
      padding: {
        string
      },
      __type__: {
        object
      }
    },
    line: {
      borderLeft: {
        string
      },
      height: {
        string
      },
      width: {
        string
      },
      pointerEvents: {
        string
      },
      __type__: {
        object
      }
    },
    dot: {
      border: {
        string
      },
      borderRadius: {
        string
      },
      height: {
        string
      },
      width: {
        string
      },
      pointerEvents: {
        string
      },
      __type__: {
        object
      }
    },
    __type__: {
      object
    }
  },
  xValueLabel: {
    function: "function"
  },
  yValueLabel: {
    function: "function"
  },
  zValueLabel: {
    function: "function"
  },
  valueMax: {
    number,
    undefined: "undefined"
  },
  valueMin: {
    number,
    undefined: "undefined"
  },
  verticalRatio: {
    number
  },
  //globals :
  height: {
    string
  },
  width: {
    string
  },
  __type__: {
    object
  }
};

/**
 * @param {number} [x]
 * @param {number} [y]
 */
function Point2d(x, y) {
  this.x = x !== undefined ? x : 0;
  this.y = y !== undefined ? y : 0;
}

/**
 * An html slider control with start/stop/prev/next buttons
 * @function Object() { [native code] } Slider
 * @param {Element} container  The element where the slider will be created
 * @param {object} options   Available options:
 *                 {boolean} visible   If true (default) the
 *                           slider is visible.
 */
function Slider(container, options) {
  if (container === undefined) {
    throw new Error("No container element defined");
  }
  this.container = container;
  this.visible = options && options.visible != undefined ? options.visible : true;
  if (this.visible) {
    this.frame = document.createElement("DIV");
    //this.frame.style.backgroundColor = '#E5E5E5';
    this.frame.style.width = "100%";
    this.frame.style.position = "relative";
    this.container.appendChild(this.frame);
    this.frame.prev = document.createElement("INPUT");
    this.frame.prev.type = "BUTTON";
    this.frame.prev.value = "Prev";
    this.frame.appendChild(this.frame.prev);
    this.frame.play = document.createElement("INPUT");
    this.frame.play.type = "BUTTON";
    this.frame.play.value = "Play";
    this.frame.appendChild(this.frame.play);
    this.frame.next = document.createElement("INPUT");
    this.frame.next.type = "BUTTON";
    this.frame.next.value = "Next";
    this.frame.appendChild(this.frame.next);
    this.frame.bar = document.createElement("INPUT");
    this.frame.bar.type = "BUTTON";
    this.frame.bar.style.position = "absolute";
    this.frame.bar.style.border = "1px solid red";
    this.frame.bar.style.width = "100px";
    this.frame.bar.style.height = "6px";
    this.frame.bar.style.borderRadius = "2px";
    this.frame.bar.style.MozBorderRadius = "2px";
    this.frame.bar.style.border = "1px solid #7F7F7F";
    this.frame.bar.style.backgroundColor = "#E5E5E5";
    this.frame.appendChild(this.frame.bar);
    this.frame.slide = document.createElement("INPUT");
    this.frame.slide.type = "BUTTON";
    this.frame.slide.style.margin = "0px";
    this.frame.slide.value = " ";
    this.frame.slide.style.position = "relative";
    this.frame.slide.style.left = "-100px";
    this.frame.appendChild(this.frame.slide);

    // create events
    const me = this;
    this.frame.slide.onmousedown = function (event) {
      me._onMouseDown(event);
    };
    this.frame.prev.onclick = function (event) {
      me.prev(event);
    };
    this.frame.play.onclick = function (event) {
      me.togglePlay(event);
    };
    this.frame.next.onclick = function (event) {
      me.next(event);
    };
  }
  this.onChangeCallback = undefined;
  this.values = [];
  this.index = undefined;
  this.playTimeout = undefined;
  this.playInterval = 1000; // milliseconds
  this.playLoop = true;
}

/**
 * Select the previous index
 */
Slider.prototype.prev = function () {
  let index = this.getIndex();
  if (index > 0) {
    index--;
    this.setIndex(index);
  }
};

/**
 * Select the next index
 */
Slider.prototype.next = function () {
  let index = this.getIndex();
  if (index < _valuesInstanceProperty(this).length - 1) {
    index++;
    this.setIndex(index);
  }
};

/**
 * Select the next index
 */
Slider.prototype.playNext = function () {
  const start = new Date();
  let index = this.getIndex();
  if (index < _valuesInstanceProperty(this).length - 1) {
    index++;
    this.setIndex(index);
  } else if (this.playLoop) {
    // jump to the start
    index = 0;
    this.setIndex(index);
  }
  const end = new Date();
  const diff = end - start;

  // calculate how much time it to to set the index and to execute the callback
  // function.
  const interval = Math.max(this.playInterval - diff, 0);
  // document.title = diff // TODO: cleanup

  const me = this;
  this.playTimeout = _setTimeout(function () {
    me.playNext();
  }, interval);
};

/**
 * Toggle start or stop playing
 */
Slider.prototype.togglePlay = function () {
  if (this.playTimeout === undefined) {
    this.play();
  } else {
    this.stop();
  }
};

/**
 * Start playing
 */
Slider.prototype.play = function () {
  // Test whether already playing
  if (this.playTimeout) return;
  this.playNext();
  if (this.frame) {
    this.frame.play.value = "Stop";
  }
};

/**
 * Stop playing
 */
Slider.prototype.stop = function () {
  clearInterval(this.playTimeout);
  this.playTimeout = undefined;
  if (this.frame) {
    this.frame.play.value = "Play";
  }
};

/**
 * Set a callback function which will be triggered when the value of the
 * slider bar has changed.
 * @param {Function} callback
 */
Slider.prototype.setOnChangeCallback = function (callback) {
  this.onChangeCallback = callback;
};

/**
 * Set the interval for playing the list
 * @param {number} interval   The interval in milliseconds
 */
Slider.prototype.setPlayInterval = function (interval) {
  this.playInterval = interval;
};

/**
 * Retrieve the current play interval
 * @returns {number} interval   The interval in milliseconds
 */
Slider.prototype.getPlayInterval = function () {
  return this.playInterval;
};

/**
 * Set looping on or off
 * @param {boolean} doLoop  If true, the slider will jump to the start when
 *               the end is passed, and will jump to the end
 *               when the start is passed.
 */
Slider.prototype.setPlayLoop = function (doLoop) {
  this.playLoop = doLoop;
};

/**
 * Execute the onchange callback function
 */
Slider.prototype.onChange = function () {
  if (this.onChangeCallback !== undefined) {
    this.onChangeCallback();
  }
};

/**
 * redraw the slider on the correct place
 */
Slider.prototype.redraw = function () {
  if (this.frame) {
    // resize the bar
    this.frame.bar.style.top = this.frame.clientHeight / 2 - this.frame.bar.offsetHeight / 2 + "px";
    this.frame.bar.style.width = this.frame.clientWidth - this.frame.prev.clientWidth - this.frame.play.clientWidth - this.frame.next.clientWidth - 30 + "px";

    // position the slider button
    const left = this.indexToLeft(this.index);
    this.frame.slide.style.left = left + "px";
  }
};

/**
 * Set the list with values for the slider
 * @param {Array} values   A javascript array with values (any type)
 */
Slider.prototype.setValues = function (values) {
  this.values = values;
  if (_valuesInstanceProperty(this).length > 0) this.setIndex(0);else this.index = undefined;
};

/**
 * Select a value by its index
 * @param {number} index
 */
Slider.prototype.setIndex = function (index) {
  if (index < _valuesInstanceProperty(this).length) {
    this.index = index;
    this.redraw();
    this.onChange();
  } else {
    throw new Error("Index out of range");
  }
};

/**
 * retrieve the index of the currently selected vaue
 * @returns {number} index
 */
Slider.prototype.getIndex = function () {
  return this.index;
};

/**
 * retrieve the currently selected value
 * @returns {*} value
 */
Slider.prototype.get = function () {
  return _valuesInstanceProperty(this)[this.index];
};
Slider.prototype._onMouseDown = function (event) {
  // only react on left mouse button down
  const leftButtonDown = event.which ? event.which === 1 : event.button === 1;
  if (!leftButtonDown) return;
  this.startClientX = event.clientX;
  this.startSlideX = _parseFloat(this.frame.slide.style.left);
  this.frame.style.cursor = "move";

  // add event listeners to handle moving the contents
  // we store the function onmousemove and onmouseup in the graph, so we can
  // remove the eventlisteners lateron in the function mouseUp()
  const me = this;
  this.onmousemove = function (event) {
    me._onMouseMove(event);
  };
  this.onmouseup = function (event) {
    me._onMouseUp(event);
  };
  document.addEventListener("mousemove", this.onmousemove);
  document.addEventListener("mouseup", this.onmouseup);
  preventDefault(event);
};
Slider.prototype.leftToIndex = function (left) {
  const width = _parseFloat(this.frame.bar.style.width) - this.frame.slide.clientWidth - 10;
  const x = left - 3;
  let index = Math.round(x / width * (_valuesInstanceProperty(this).length - 1));
  if (index < 0) index = 0;
  if (index > _valuesInstanceProperty(this).length - 1) index = _valuesInstanceProperty(this).length - 1;
  return index;
};
Slider.prototype.indexToLeft = function (index) {
  const width = _parseFloat(this.frame.bar.style.width) - this.frame.slide.clientWidth - 10;
  const x = index / (_valuesInstanceProperty(this).length - 1) * width;
  const left = x + 3;
  return left;
};
Slider.prototype._onMouseMove = function (event) {
  const diff = event.clientX - this.startClientX;
  const x = this.startSlideX + diff;
  const index = this.leftToIndex(x);
  this.setIndex(index);
  preventDefault();
};
Slider.prototype._onMouseUp = function () {
  this.frame.style.cursor = "auto";

  // remove event listeners
  document.removeEventListener("mousemove", this.onmousemove);
  document.removeEventListener("mouseup", this.onmouseup);
  preventDefault();
};

/**
 * The class StepNumber is an iterator for Numbers. You provide a start and end
 * value, and a best step size. StepNumber itself rounds to fixed values and
 * a finds the step that best fits the provided step.
 *
 * If prettyStep is true, the step size is chosen as close as possible to the
 * provided step, but being a round value like 1, 2, 5, 10, 20, 50, ....
 *
 * Example usage:
 *   var step = new StepNumber(0, 10, 2.5, true);
 *   step.start();
 *   while (!step.end()) {
 *   alert(step.getCurrent());
 *   step.next();
 *   }
 *
 * Version: 1.0
 * @param {number} start     The start value
 * @param {number} end     The end value
 * @param {number} step    Optional. Step size. Must be a positive value.
 * @param {boolean} prettyStep Optional. If true, the step size is rounded
 *               To a pretty step size (like 1, 2, 5, 10, 20, 50, ...)
 */
function StepNumber(start, end, step, prettyStep) {
  // set default values
  this._start = 0;
  this._end = 0;
  this._step = 1;
  this.prettyStep = true;
  this.precision = 5;
  this._current = 0;
  this.setRange(start, end, step, prettyStep);
}

/**
 * Check for input values, to prevent disasters from happening
 *
 * Source: http://stackoverflow.com/a/1830844
 * @param {string} n
 * @returns {boolean}
 */
StepNumber.prototype.isNumeric = function (n) {
  return !isNaN(_parseFloat(n)) && isFinite(n);
};

/**
 * Set a new range: start, end and step.
 * @param {number} start     The start value
 * @param {number} end     The end value
 * @param {number} step    Optional. Step size. Must be a positive value.
 * @param {boolean} prettyStep Optional. If true, the step size is rounded
 *               To a pretty step size (like 1, 2, 5, 10, 20, 50, ...)
 */
StepNumber.prototype.setRange = function (start, end, step, prettyStep) {
  if (!this.isNumeric(start)) {
    throw new Error("Parameter 'start' is not numeric; value: " + start);
  }
  if (!this.isNumeric(end)) {
    throw new Error("Parameter 'end' is not numeric; value: " + start);
  }
  if (!this.isNumeric(step)) {
    throw new Error("Parameter 'step' is not numeric; value: " + start);
  }
  this._start = start ? start : 0;
  this._end = end ? end : 0;
  this.setStep(step, prettyStep);
};

/**
 * Set a new step size
 * @param {number} step    New step size. Must be a positive value
 * @param {boolean} prettyStep Optional. If true, the provided step is rounded
 *               to a pretty step size (like 1, 2, 5, 10, 20, 50, ...)
 */
StepNumber.prototype.setStep = function (step, prettyStep) {
  if (step === undefined || step <= 0) return;
  if (prettyStep !== undefined) this.prettyStep = prettyStep;
  if (this.prettyStep === true) this._step = StepNumber.calculatePrettyStep(step);else this._step = step;
};

/**
 * Calculate a nice step size, closest to the desired step size.
 * Returns a value in one of the ranges 1*10^n, 2*10^n, or 5*10^n, where n is an
 * integer Number. For example 1, 2, 5, 10, 20, 50, etc...
 * @param {number}  step  Desired step size
 * @returns {number}     Nice step size
 */
StepNumber.calculatePrettyStep = function (step) {
  const log10 = function (x) {
    return Math.log(x) / Math.LN10;
  };

  // try three steps (multiple of 1, 2, or 5
  const step1 = Math.pow(10, Math.round(log10(step))),
    step2 = 2 * Math.pow(10, Math.round(log10(step / 2))),
    step5 = 5 * Math.pow(10, Math.round(log10(step / 5)));

  // choose the best step (closest to minimum step)
  let prettyStep = step1;
  if (Math.abs(step2 - step) <= Math.abs(prettyStep - step)) prettyStep = step2;
  if (Math.abs(step5 - step) <= Math.abs(prettyStep - step)) prettyStep = step5;

  // for safety
  if (prettyStep <= 0) {
    prettyStep = 1;
  }
  return prettyStep;
};

/**
 * returns the current value of the step
 * @returns {number} current value
 */
StepNumber.prototype.getCurrent = function () {
  return _parseFloat(this._current.toPrecision(this.precision));
};

/**
 * returns the current step size
 * @returns {number} current step size
 */
StepNumber.prototype.getStep = function () {
  return this._step;
};

/**
 * Set the current to its starting value.
 *
 * By default, this will be the largest value smaller than start, which
 * is a multiple of the step size.
 *
 * Parameters checkFirst is optional, default false.
 * If set to true, move the current value one step if smaller than start.
 * @param {boolean} [checkFirst]
 */
StepNumber.prototype.start = function (checkFirst) {
  if (checkFirst === undefined) {
    checkFirst = false;
  }
  this._current = this._start - this._start % this._step;
  if (checkFirst) {
    if (this.getCurrent() < this._start) {
      this.next();
    }
  }
};

/**
 * Do a step, add the step size to the current value
 */
StepNumber.prototype.next = function () {
  this._current += this._step;
};

/**
 * Returns true whether the end is reached
 * @returns {boolean}  True if the current value has passed the end value.
 */
StepNumber.prototype.end = function () {
  return this._current > this._end;
};

/// enumerate the available styles
Graph3d.STYLE = STYLE;

/**
 * Following label is used in the settings to describe values which should be
 * determined by the code while running, from the current data and graph style.
 *
 * Using 'undefined' directly achieves the same thing, but this is more
 * descriptive by describing the intent.
 */
const autoByDefault = undefined;

/**
 * Default values for option settings.
 *
 * These are the values used when a Graph3d instance is initialized without
 * custom settings.
 *
 * If a field is not in this list, a default value of 'autoByDefault' is assumed,
 * which is just an alias for 'undefined'.
 */
Graph3d.DEFAULTS = {
  width: "400px",
  height: "400px",
  filterLabel: "time",
  legendLabel: "value",
  xLabel: "x",
  yLabel: "y",
  zLabel: "z",
  xValueLabel: function (v) {
    return v;
  },
  yValueLabel: function (v) {
    return v;
  },
  zValueLabel: function (v) {
    return v;
  },
  showXAxis: true,
  showYAxis: true,
  showZAxis: true,
  showGrayBottom: false,
  showGrid: true,
  showPerspective: true,
  showShadow: false,
  showSurfaceGrid: true,
  keepAspectRatio: true,
  rotateAxisLabels: true,
  verticalRatio: 0.5,
  // 0.1 to 1.0, where 1.0 results in a 'cube'

  dotSizeRatio: 0.02,
  // size of the dots as a fraction of the graph width
  dotSizeMinFraction: 0.5,
  // size of min-value dot as a fraction of dotSizeRatio
  dotSizeMaxFraction: 2.5,
  // size of max-value dot as a fraction of dotSizeRatio

  showAnimationControls: autoByDefault,
  animationInterval: 1000,
  // milliseconds
  animationPreload: false,
  animationAutoStart: autoByDefault,
  axisFontSize: 14,
  axisFontType: "arial",
  axisColor: "#4D4D4D",
  gridColor: "#D3D3D3",
  xCenter: "55%",
  yCenter: "50%",
  style: Graph3d.STYLE.DOT,
  tooltip: false,
  tooltipDelay: 300,
  // milliseconds

  tooltipStyle: {
    content: {
      padding: "10px",
      border: "1px solid #4d4d4d",
      color: "#1a1a1a",
      background: "rgba(255,255,255,0.7)",
      borderRadius: "2px",
      boxShadow: "5px 5px 10px rgba(128,128,128,0.5)"
    },
    line: {
      height: "40px",
      width: "0",
      borderLeft: "1px solid #4d4d4d",
      pointerEvents: "none"
    },
    dot: {
      height: "0",
      width: "0",
      border: "5px solid #4d4d4d",
      borderRadius: "5px",
      pointerEvents: "none"
    }
  },
  dataColor: {
    fill: "#7DC1FF",
    stroke: "#3267D2",
    strokeWidth: 1 // px
  },
  surfaceColors: autoByDefault,
  colormap: autoByDefault,
  cameraPosition: {
    horizontal: 1.0,
    vertical: 0.5,
    distance: 1.7
  },
  zoomable: true,
  ctrlToZoom: false,
  /*
  The following fields are 'auto by default', see above.
  */
  showLegend: autoByDefault,
  // determined by graph style
  backgroundColor: autoByDefault,
  xBarWidth: autoByDefault,
  yBarWidth: autoByDefault,
  valueMin: autoByDefault,
  valueMax: autoByDefault,
  xMin: autoByDefault,
  xMax: autoByDefault,
  xStep: autoByDefault,
  yMin: autoByDefault,
  yMax: autoByDefault,
  yStep: autoByDefault,
  zMin: autoByDefault,
  zMax: autoByDefault,
  zStep: autoByDefault
};

// -----------------------------------------------------------------------------
// Class Graph3d
// -----------------------------------------------------------------------------

/**
 * Graph3d displays data in 3d.
 *
 * Graph3d is developed in javascript as a Google Visualization Chart.
 * @function Object() { [native code] } Graph3d
 * @param {Element} container   The DOM element in which the Graph3d will
 *                              be created. Normally a div element.
 * @param {DataSet | DataView | Array} [data]
 * @param {object} [options]
 */
function Graph3d(container, data, options) {
  if (!(this instanceof Graph3d)) {
    throw new SyntaxError("Constructor must be called with the new operator");
  }

  // create variables and set default values
  this.containerElement = container;
  this.dataGroup = new DataGroup();
  this.dataPoints = null; // The table with point objects

  // create a frame and canvas
  this.create();
  setDefaults(Graph3d.DEFAULTS, this);

  // the column indexes
  this.colX = undefined;
  this.colY = undefined;
  this.colZ = undefined;
  this.colValue = undefined;

  // TODO: customize axis range

  // apply options (also when undefined)
  this.setOptions(options);

  // apply data
  this.setData(data);
}

// Extend Graph3d with an Emitter mixin
Emitter(Graph3d.prototype);

/**
 * Calculate the scaling values, dependent on the range in x, y, and z direction
 */
Graph3d.prototype._setScale = function () {
  this.scale = new Point3d(1 / this.xRange.range(), 1 / this.yRange.range(), 1 / this.zRange.range());

  // keep aspect ration between x and y scale if desired
  if (this.keepAspectRatio) {
    if (this.scale.x < this.scale.y) {
      //noinspection JSSuspiciousNameCombination
      this.scale.y = this.scale.x;
    } else {
      //noinspection JSSuspiciousNameCombination
      this.scale.x = this.scale.y;
    }
  }

  // scale the vertical axis
  this.scale.z *= this.verticalRatio;
  // TODO: can this be automated? verticalRatio?

  // determine scale for (optional) value
  if (this.valueRange !== undefined) {
    this.scale.value = 1 / this.valueRange.range();
  }

  // position the camera arm
  const xCenter = this.xRange.center() * this.scale.x;
  const yCenter = this.yRange.center() * this.scale.y;
  const zCenter = this.zRange.center() * this.scale.z;
  this.camera.setArmLocation(xCenter, yCenter, zCenter);
};

/**
 * Convert a 3D location to a 2D location on screen
 * Source: ttp://en.wikipedia.org/wiki/3D_projection
 * @param   {Point3d} point3d  A 3D point with parameters x, y, z
 * @returns {Point2d} point2d  A 2D point with parameters x, y
 */
Graph3d.prototype._convert3Dto2D = function (point3d) {
  const translation = this._convertPointToTranslation(point3d);
  return this._convertTranslationToScreen(translation);
};

/**
 * Convert a 3D location its translation seen from the camera
 * Source: http://en.wikipedia.org/wiki/3D_projection
 * @param   {Point3d} point3d     A 3D point with parameters x, y, z
 * @returns {Point3d} translation A 3D point with parameters x, y, z This is
 *                                the translation of the point, seen from the
 *                                camera.
 */
Graph3d.prototype._convertPointToTranslation = function (point3d) {
  const cameraLocation = this.camera.getCameraLocation(),
    cameraRotation = this.camera.getCameraRotation(),
    ax = point3d.x * this.scale.x,
    ay = point3d.y * this.scale.y,
    az = point3d.z * this.scale.z,
    cx = cameraLocation.x,
    cy = cameraLocation.y,
    cz = cameraLocation.z,
    // calculate angles
    sinTx = Math.sin(cameraRotation.x),
    cosTx = Math.cos(cameraRotation.x),
    sinTy = Math.sin(cameraRotation.y),
    cosTy = Math.cos(cameraRotation.y),
    sinTz = Math.sin(cameraRotation.z),
    cosTz = Math.cos(cameraRotation.z),
    // calculate translation
    dx = cosTy * (sinTz * (ay - cy) + cosTz * (ax - cx)) - sinTy * (az - cz),
    dy = sinTx * (cosTy * (az - cz) + sinTy * (sinTz * (ay - cy) + cosTz * (ax - cx))) + cosTx * (cosTz * (ay - cy) - sinTz * (ax - cx)),
    dz = cosTx * (cosTy * (az - cz) + sinTy * (sinTz * (ay - cy) + cosTz * (ax - cx))) - sinTx * (cosTz * (ay - cy) - sinTz * (ax - cx));
  return new Point3d(dx, dy, dz);
};

/**
 * Convert a translation point to a point on the screen
 * @param   {Point3d} translation A 3D point with parameters x, y, z This is
 *                                the translation of the point, seen from the
 *                                camera.
 * @returns {Point2d} point2d     A 2D point with parameters x, y
 */
Graph3d.prototype._convertTranslationToScreen = function (translation) {
  const ex = this.eye.x,
    ey = this.eye.y,
    ez = this.eye.z,
    dx = translation.x,
    dy = translation.y,
    dz = translation.z;

  // calculate position on screen from translation
  let bx;
  let by;
  if (this.showPerspective) {
    bx = (dx - ex) * (ez / dz);
    by = (dy - ey) * (ez / dz);
  } else {
    bx = dx * -(ez / this.camera.getArmLength());
    by = dy * -(ez / this.camera.getArmLength());
  }

  // shift and scale the point to the center of the screen
  // use the width of the graph to scale both horizontally and vertically.
  return new Point2d(this.currentXCenter + bx * this.frame.canvas.clientWidth, this.currentYCenter - by * this.frame.canvas.clientWidth);
};

/**
 * Calculate the translations and screen positions of all points
 * @param {Array.<Point3d>} points
 * @private
 */
Graph3d.prototype._calcTranslations = function (points) {
  for (let i = 0; i < points.length; i++) {
    const point = points[i];
    point.trans = this._convertPointToTranslation(point.point);
    point.screen = this._convertTranslationToScreen(point.trans);

    // calculate the translation of the point at the bottom (needed for sorting)
    const transBottom = this._convertPointToTranslation(point.bottom);
    point.dist = this.showPerspective ? transBottom.length() : -transBottom.z;
  }

  // sort the points on depth of their (x,y) position (not on z)
  const sortDepth = function (a, b) {
    return b.dist - a.dist;
  };
  _sortInstanceProperty(points).call(points, sortDepth);
};

/**
 * Transfer min/max values to the Graph3d instance.
 */
Graph3d.prototype._initializeRanges = function () {
  // TODO: later on, all min/maxes of all datagroups will be combined here
  const dg = this.dataGroup;
  this.xRange = dg.xRange;
  this.yRange = dg.yRange;
  this.zRange = dg.zRange;
  this.valueRange = dg.valueRange;

  // Values currently needed but which need to be sorted out for
  // the multiple graph case.
  this.xStep = dg.xStep;
  this.yStep = dg.yStep;
  this.zStep = dg.zStep;
  this.xBarWidth = dg.xBarWidth;
  this.yBarWidth = dg.yBarWidth;
  this.colX = dg.colX;
  this.colY = dg.colY;
  this.colZ = dg.colZ;
  this.colValue = dg.colValue;

  // set the scale dependent on the ranges.
  this._setScale();
};

/**
 * Return all data values as a list of Point3d objects
 * @param {vis.DataSet} data
 * @returns {Array.<object>}
 */
Graph3d.prototype.getDataPoints = function (data) {
  const dataPoints = [];
  for (let i = 0; i < data.length; i++) {
    const point = new Point3d();
    point.x = data[i][this.colX] || 0;
    point.y = data[i][this.colY] || 0;
    point.z = data[i][this.colZ] || 0;
    point.data = data[i];
    point.value = data[i][this.colValue] || 0;
    const obj = {};
    obj.point = point;
    obj.bottom = new Point3d(point.x, point.y, this.zRange.min);
    obj.trans = undefined;
    obj.screen = undefined;
    dataPoints.push(obj);
  }
  return dataPoints;
};

/**
 * Filter the data based on the current filter
 * @param   {Array} data
 * @returns {Array} dataPoints Array with point objects which can be drawn on
 *                             screen
 */
Graph3d.prototype._getDataPoints = function (data) {
  // TODO: store the created matrix dataPoints in the filters instead of
  //       reloading each time.
  let x, y, i, obj;
  let dataPoints = [];
  if (this.style === Graph3d.STYLE.GRID || this.style === Graph3d.STYLE.SURFACE) {
    // copy all values from the data table to a matrix
    // the provided values are supposed to form a grid of (x,y) positions

    // create two lists with all present x and y values
    const dataX = this.dataGroup.getDistinctValues(this.colX, data);
    const dataY = this.dataGroup.getDistinctValues(this.colY, data);
    dataPoints = this.getDataPoints(data);

    // create a grid, a 2d matrix, with all values.
    const dataMatrix = []; // temporary data matrix
    for (i = 0; i < dataPoints.length; i++) {
      obj = dataPoints[i];

      // TODO: implement Array().indexOf() for Internet Explorer
      const xIndex = _indexOfInstanceProperty(dataX).call(dataX, obj.point.x);
      const yIndex = _indexOfInstanceProperty(dataY).call(dataY, obj.point.y);
      if (dataMatrix[xIndex] === undefined) {
        dataMatrix[xIndex] = [];
      }
      dataMatrix[xIndex][yIndex] = obj;
    }

    // fill in the pointers to the neighbors.
    for (x = 0; x < dataMatrix.length; x++) {
      for (y = 0; y < dataMatrix[x].length; y++) {
        if (dataMatrix[x][y]) {
          dataMatrix[x][y].pointRight = x < dataMatrix.length - 1 ? dataMatrix[x + 1][y] : undefined;
          dataMatrix[x][y].pointTop = y < dataMatrix[x].length - 1 ? dataMatrix[x][y + 1] : undefined;
          dataMatrix[x][y].pointCross = x < dataMatrix.length - 1 && y < dataMatrix[x].length - 1 ? dataMatrix[x + 1][y + 1] : undefined;
        }
      }
    }
  } else {
    // 'dot', 'dot-line', etc.
    dataPoints = this.getDataPoints(data);
    if (this.style === Graph3d.STYLE.LINE) {
      // Add next member points for line drawing
      for (i = 0; i < dataPoints.length; i++) {
        if (i > 0) {
          dataPoints[i - 1].pointNext = dataPoints[i];
        }
      }
    }
  }
  return dataPoints;
};

/**
 * Create the main frame for the Graph3d.
 *
 * This function is executed once when a Graph3d object is created. The frame
 * contains a canvas, and this canvas contains all objects like the axis and
 * nodes.
 */
Graph3d.prototype.create = function () {
  // remove all elements from the container element.
  while (this.containerElement.hasChildNodes()) {
    this.containerElement.removeChild(this.containerElement.firstChild);
  }
  this.frame = document.createElement("div");
  this.frame.style.position = "relative";
  this.frame.style.overflow = "hidden";

  // create the graph canvas (HTML canvas element)
  this.frame.canvas = document.createElement("canvas");
  this.frame.canvas.style.position = "relative";
  this.frame.appendChild(this.frame.canvas);
  //if (!this.frame.canvas.getContext) {
  {
    const noCanvas = document.createElement("DIV");
    noCanvas.style.color = "red";
    noCanvas.style.fontWeight = "bold";
    noCanvas.style.padding = "10px";
    noCanvas.innerHTML = "Error: your browser does not support HTML canvas";
    this.frame.canvas.appendChild(noCanvas);
  }
  this.frame.filter = document.createElement("div");
  _filterInstanceProperty(this.frame).style.position = "absolute";
  _filterInstanceProperty(this.frame).style.bottom = "0px";
  _filterInstanceProperty(this.frame).style.left = "0px";
  _filterInstanceProperty(this.frame).style.width = "100%";
  this.frame.appendChild(_filterInstanceProperty(this.frame));

  // add event listeners to handle moving and zooming the contents
  const me = this;
  const onmousedown = function (event) {
    me._onMouseDown(event);
  };
  const ontouchstart = function (event) {
    me._onTouchStart(event);
  };
  const onmousewheel = function (event) {
    me._onWheel(event);
  };
  const ontooltip = function (event) {
    me._onTooltip(event);
  };
  const onclick = function (event) {
    me._onClick(event);
  };
  // TODO: these events are never cleaned up... can give a 'memory leakage'

  this.frame.canvas.addEventListener("mousedown", onmousedown);
  this.frame.canvas.addEventListener("touchstart", ontouchstart);
  this.frame.canvas.addEventListener("mousewheel", onmousewheel);
  this.frame.canvas.addEventListener("mousemove", ontooltip);
  this.frame.canvas.addEventListener("click", onclick);

  // add the new graph to the container element
  this.containerElement.appendChild(this.frame);
};

/**
 * Set a new size for the graph
 * @param {number} width
 * @param {number} height
 * @private
 */
Graph3d.prototype._setSize = function (width, height) {
  this.frame.style.width = width;
  this.frame.style.height = height;
  this._resizeCanvas();
};

/**
 * Resize the canvas to the current size of the frame
 */
Graph3d.prototype._resizeCanvas = function () {
  this.frame.canvas.style.width = "100%";
  this.frame.canvas.style.height = "100%";
  this.frame.canvas.width = this.frame.canvas.clientWidth;
  this.frame.canvas.height = this.frame.canvas.clientHeight;

  // adjust with for margin
  _filterInstanceProperty(this.frame).style.width = this.frame.canvas.clientWidth - 2 * 10 + "px";
};

/**
 * Start playing the animation, if requested and filter present. Only applicable
 * when animation data is available.
 */
Graph3d.prototype.animationStart = function () {
  // start animation when option is true
  if (!this.animationAutoStart || !this.dataGroup.dataFilter) return;
  if (!_filterInstanceProperty(this.frame) || !_filterInstanceProperty(this.frame).slider) throw new Error("No animation available");
  _filterInstanceProperty(this.frame).slider.play();
};

/**
 * Stop animation
 */
Graph3d.prototype.animationStop = function () {
  if (!_filterInstanceProperty(this.frame) || !_filterInstanceProperty(this.frame).slider) return;
  _filterInstanceProperty(this.frame).slider.stop();
};

/**
 * Resize the center position based on the current values in this.xCenter
 * and this.yCenter (which are strings with a percentage or a value
 * in pixels). The center positions are the variables this.currentXCenter
 * and this.currentYCenter
 */
Graph3d.prototype._resizeCenter = function () {
  // calculate the horizontal center position
  if (this.xCenter.charAt(this.xCenter.length - 1) === "%") {
    this.currentXCenter = _parseFloat(this.xCenter) / 100 * this.frame.canvas.clientWidth;
  } else {
    this.currentXCenter = _parseFloat(this.xCenter); // supposed to be in px
  }

  // calculate the vertical center position
  if (this.yCenter.charAt(this.yCenter.length - 1) === "%") {
    this.currentYCenter = _parseFloat(this.yCenter) / 100 * (this.frame.canvas.clientHeight - _filterInstanceProperty(this.frame).clientHeight);
  } else {
    this.currentYCenter = _parseFloat(this.yCenter); // supposed to be in px
  }
};

/**
 * Retrieve the current camera rotation
 * @returns {object} An object with parameters horizontal, vertical, and
 *                   distance
 */
Graph3d.prototype.getCameraPosition = function () {
  const pos = this.camera.getArmRotation();
  pos.distance = this.camera.getArmLength();
  return pos;
};

/**
 * Load data into the 3D Graph
 * @param {vis.DataSet} data
 * @private
 */
Graph3d.prototype._readData = function (data) {
  // read the data
  this.dataPoints = this.dataGroup.initializeData(this, data, this.style);
  this._initializeRanges();
  this._redrawFilter();
};

/**
 * Replace the dataset of the Graph3d
 * @param {Array | DataSet | DataView} data
 */
Graph3d.prototype.setData = function (data) {
  if (data === undefined || data === null) return;
  this._readData(data);
  this.redraw();
  this.animationStart();
};

/**
 * Update the options. Options will be merged with current options
 * @param {object} options
 */
Graph3d.prototype.setOptions = function (options) {
  if (options === undefined) return;
  const errorFound = Validator.validate(options, allOptions);
  if (errorFound === true) {
    console.error("%cErrors have been found in the supplied options object.", VALIDATOR_PRINT_STYLE);
  }
  this.animationStop();
  setOptions(options, this);
  this.setPointDrawingMethod();
  this._setSize(this.width, this.height);
  this.setAxisLabelMethod();
  this.setData(this.dataGroup.getDataTable());
  this.animationStart();
};

/**
 * Determine which point drawing method to use for the current graph style.
 */
Graph3d.prototype.setPointDrawingMethod = function () {
  let method = undefined;
  switch (this.style) {
    case Graph3d.STYLE.BAR:
      method = this._redrawBarGraphPoint;
      break;
    case Graph3d.STYLE.BARCOLOR:
      method = this._redrawBarColorGraphPoint;
      break;
    case Graph3d.STYLE.BARSIZE:
      method = this._redrawBarSizeGraphPoint;
      break;
    case Graph3d.STYLE.DOT:
      method = this._redrawDotGraphPoint;
      break;
    case Graph3d.STYLE.DOTLINE:
      method = this._redrawDotLineGraphPoint;
      break;
    case Graph3d.STYLE.DOTCOLOR:
      method = this._redrawDotColorGraphPoint;
      break;
    case Graph3d.STYLE.DOTSIZE:
      method = this._redrawDotSizeGraphPoint;
      break;
    case Graph3d.STYLE.SURFACE:
      method = this._redrawSurfaceGraphPoint;
      break;
    case Graph3d.STYLE.GRID:
      method = this._redrawGridGraphPoint;
      break;
    case Graph3d.STYLE.LINE:
      method = this._redrawLineGraphPoint;
      break;
    default:
      throw new Error("Can not determine point drawing method " + "for graph style '" + this.style + "'");
  }
  this._pointDrawingMethod = method;
};

/**
 * Determine which functions to use to draw axis labels.
 */
Graph3d.prototype.setAxisLabelMethod = function () {
  if (this.rotateAxisLabels) {
    this._drawAxisLabelX = this.drawAxisLabelXRotate;
    this._drawAxisLabelY = this.drawAxisLabelYRotate;
    this._drawAxisLabelZ = this.drawAxisLabelZRotate;
  } else {
    this._drawAxisLabelX = this.drawAxisLabelX;
    this._drawAxisLabelY = this.drawAxisLabelY;
    this._drawAxisLabelZ = this.drawAxisLabelZ;
  }
};

/**
 * Redraw the Graph.
 */
Graph3d.prototype.redraw = function () {
  if (this.dataPoints === undefined) {
    throw new Error("Graph data not initialized");
  }
  this._resizeCanvas();
  this._resizeCenter();
  this._redrawSlider();
  this._redrawClear();
  this._redrawAxis();
  this._redrawDataGraph();
  this._redrawInfo();
  this._redrawLegend();
};

/**
 * Get drawing context without exposing canvas
 * @returns {CanvasRenderingContext2D}
 * @private
 */
Graph3d.prototype._getContext = function () {
  const canvas = this.frame.canvas;
  const ctx = canvas.getContext("2d");
  ctx.lineJoin = "round";
  ctx.lineCap = "round";
  return ctx;
};

/**
 * Clear the canvas before redrawing
 */
Graph3d.prototype._redrawClear = function () {
  const canvas = this.frame.canvas;
  const ctx = canvas.getContext("2d");
  ctx.clearRect(0, 0, canvas.width, canvas.height);
};
Graph3d.prototype._dotSize = function () {
  return this.frame.clientWidth * this.dotSizeRatio;
};

/**
 * Get legend width
 * @returns {*}
 * @private
 */
Graph3d.prototype._getLegendWidth = function () {
  let width;
  if (this.style === Graph3d.STYLE.DOTSIZE) {
    const dotSize = this._dotSize();
    //width =  dotSize / 2 + dotSize * 2;
    width = dotSize * this.dotSizeMaxFraction;
  } else if (this.style === Graph3d.STYLE.BARSIZE) {
    width = this.xBarWidth;
  } else {
    width = 20;
  }
  return width;
};

/**
 * Redraw the legend based on size, dot color, or surface height
 */
Graph3d.prototype._redrawLegend = function () {
  //Return without drawing anything, if no legend is specified
  if (this.showLegend !== true) {
    return;
  }

  // Do not draw legend when graph style does not support
  if (this.style === Graph3d.STYLE.LINE || this.style === Graph3d.STYLE.BARSIZE //TODO add legend support for BARSIZE
  ) {
    return;
  }

  // Legend types - size and color. Determine if size legend.
  const isSizeLegend = this.style === Graph3d.STYLE.BARSIZE || this.style === Graph3d.STYLE.DOTSIZE;

  // Legend is either tracking z values or style values. This flag if false means use z values.
  const isValueLegend = this.style === Graph3d.STYLE.DOTSIZE || this.style === Graph3d.STYLE.DOTCOLOR || this.style === Graph3d.STYLE.SURFACE || this.style === Graph3d.STYLE.BARCOLOR;
  const height = Math.max(this.frame.clientHeight * 0.25, 100);
  const top = this.margin;
  const width = this._getLegendWidth(); // px - overwritten by size legend
  const right = this.frame.clientWidth - this.margin;
  const left = right - width;
  const bottom = top + height;
  const ctx = this._getContext();
  ctx.lineWidth = 1;
  ctx.font = "14px arial"; // TODO: put in options

  if (isSizeLegend === false) {
    // draw the color bar
    const ymin = 0;
    const ymax = height; // Todo: make height customizable
    let y;
    for (y = ymin; y < ymax; y++) {
      // Need (1 - x) because y runs from top to bottom:
      const f = 1 - (y - ymin) / (ymax - ymin);
      const color = this._colormap(f, 1);
      ctx.strokeStyle = color;
      ctx.beginPath();
      ctx.moveTo(left, top + y);
      ctx.lineTo(right, top + y);
      ctx.stroke();
    }
    ctx.strokeStyle = this.axisColor;
    ctx.strokeRect(left, top, width, height);
  } else {
    // draw the size legend box
    let widthMin;
    if (this.style === Graph3d.STYLE.DOTSIZE) {
      // Get the proportion to max and min right
      widthMin = width * (this.dotSizeMinFraction / this.dotSizeMaxFraction);
    } else if (this.style === Graph3d.STYLE.BARSIZE) ;
    ctx.strokeStyle = this.axisColor;
    ctx.fillStyle = _fillInstanceProperty(this.dataColor);
    ctx.beginPath();
    ctx.moveTo(left, top);
    ctx.lineTo(right, top);
    ctx.lineTo(left + widthMin, bottom);
    ctx.lineTo(left, bottom);
    ctx.closePath();
    _fillInstanceProperty(ctx).call(ctx);
    ctx.stroke();
  }

  // print value text along the legend edge
  const gridLineLen = 5; // px

  const legendMin = isValueLegend ? this.valueRange.min : this.zRange.min;
  const legendMax = isValueLegend ? this.valueRange.max : this.zRange.max;
  const step = new StepNumber(legendMin, legendMax, (legendMax - legendMin) / 5, true);
  step.start(true);
  while (!step.end()) {
    const y = bottom - (step.getCurrent() - legendMin) / (legendMax - legendMin) * height;
    const from = new Point2d(left - gridLineLen, y);
    const to = new Point2d(left, y);
    this._line(ctx, from, to);
    ctx.textAlign = "right";
    ctx.textBaseline = "middle";
    ctx.fillStyle = this.axisColor;
    ctx.fillText(step.getCurrent(), left - 2 * gridLineLen, y);
    step.next();
  }
  ctx.textAlign = "right";
  ctx.textBaseline = "top";
  const label = this.legendLabel;
  ctx.fillText(label, right, bottom + this.margin);
};

/**
 * Redraw the filter
 */
Graph3d.prototype._redrawFilter = function () {
  const dataFilter = this.dataGroup.dataFilter;
  const filter = _filterInstanceProperty(this.frame);
  filter.innerHTML = "";
  if (!dataFilter) {
    filter.slider = undefined;
    return;
  }
  const options = {
    visible: this.showAnimationControls
  };
  const slider = new Slider(filter, options);
  filter.slider = slider;

  // TODO: css here is not nice here...
  filter.style.padding = "10px";
  //this.frame.filter.style.backgroundColor = '#EFEFEF';

  slider.setValues(_valuesInstanceProperty(dataFilter));
  slider.setPlayInterval(this.animationInterval);

  // create an event handler
  const me = this;
  const onchange = function () {
    const dataFilter = me.dataGroup.dataFilter;
    const index = slider.getIndex();
    dataFilter.selectValue(index);
    me.dataPoints = dataFilter._getDataPoints();
    me.redraw();
  };
  slider.setOnChangeCallback(onchange);
};

/**
 * Redraw the slider
 */
Graph3d.prototype._redrawSlider = function () {
  if (_filterInstanceProperty(this.frame).slider !== undefined) {
    _filterInstanceProperty(this.frame).slider.redraw();
  }
};

/**
 * Redraw common information
 */
Graph3d.prototype._redrawInfo = function () {
  const info = this.dataGroup.getInfo();
  if (info === undefined) return;
  const ctx = this._getContext();
  ctx.font = "14px arial"; // TODO: put in options
  ctx.lineStyle = "gray";
  ctx.fillStyle = "gray";
  ctx.textAlign = "left";
  ctx.textBaseline = "top";
  const x = this.margin;
  const y = this.margin;
  ctx.fillText(info, x, y);
};

/**
 * Draw a line between 2d points 'from' and 'to'.
 *
 * If stroke style specified, set that as well.
 * @param {CanvasRenderingContext2D} ctx
 * @param {vis.Point2d} from
 * @param {vis.Point2d} to
 * @param {string} [strokeStyle]
 * @private
 */
Graph3d.prototype._line = function (ctx, from, to, strokeStyle) {
  if (strokeStyle !== undefined) {
    ctx.strokeStyle = strokeStyle;
  }
  ctx.beginPath();
  ctx.moveTo(from.x, from.y);
  ctx.lineTo(to.x, to.y);
  ctx.stroke();
};

/**
 *
 * @param {CanvasRenderingContext2D} ctx
 * @param {vis.Point3d} point3d
 * @param {string} text
 * @param {number} armAngle
 * @param {number} [yMargin]
 */
Graph3d.prototype.drawAxisLabelX = function (ctx, point3d, text, armAngle, yMargin) {
  if (yMargin === undefined) {
    yMargin = 0;
  }
  const point2d = this._convert3Dto2D(point3d);
  if (Math.cos(armAngle * 2) > 0) {
    ctx.textAlign = "center";
    ctx.textBaseline = "top";
    point2d.y += yMargin;
  } else if (Math.sin(armAngle * 2) < 0) {
    ctx.textAlign = "right";
    ctx.textBaseline = "middle";
  } else {
    ctx.textAlign = "left";
    ctx.textBaseline = "middle";
  }
  ctx.fillStyle = this.axisColor;
  ctx.fillText(text, point2d.x, point2d.y);
};

/**
 *
 * @param {CanvasRenderingContext2D} ctx
 * @param {vis.Point3d} point3d
 * @param {string} text
 * @param {number} armAngle
 * @param {number} [yMargin]
 */
Graph3d.prototype.drawAxisLabelY = function (ctx, point3d, text, armAngle, yMargin) {
  if (yMargin === undefined) {
    yMargin = 0;
  }
  const point2d = this._convert3Dto2D(point3d);
  if (Math.cos(armAngle * 2) < 0) {
    ctx.textAlign = "center";
    ctx.textBaseline = "top";
    point2d.y += yMargin;
  } else if (Math.sin(armAngle * 2) > 0) {
    ctx.textAlign = "right";
    ctx.textBaseline = "middle";
  } else {
    ctx.textAlign = "left";
    ctx.textBaseline = "middle";
  }
  ctx.fillStyle = this.axisColor;
  ctx.fillText(text, point2d.x, point2d.y);
};

/**
 *
 * @param {CanvasRenderingContext2D} ctx
 * @param {vis.Point3d} point3d
 * @param {string} text
 * @param {number} [offset]
 */
Graph3d.prototype.drawAxisLabelZ = function (ctx, point3d, text, offset) {
  if (offset === undefined) {
    offset = 0;
  }
  const point2d = this._convert3Dto2D(point3d);
  ctx.textAlign = "right";
  ctx.textBaseline = "middle";
  ctx.fillStyle = this.axisColor;
  ctx.fillText(text, point2d.x - offset, point2d.y);
};

/**
 *
 * @param {CanvasRenderingContext2D} ctx
 * @param {vis.Point3d} point3d
 * @param {string} text
 * @param {number} armAngle
 * @param {number} [yMargin]
 */
Graph3d.prototype.drawAxisLabelXRotate = function (ctx, point3d, text, armAngle, yMargin) {
  const point2d = this._convert3Dto2D(point3d);
  if (Math.cos(armAngle * 2) > 0) {
    ctx.save();
    ctx.translate(point2d.x, point2d.y);
    ctx.rotate(-Math.PI / 2);
    ctx.textAlign = "right";
    ctx.textBaseline = "middle";
    ctx.fillStyle = this.axisColor;
    ctx.fillText(text, 0, 0);
    ctx.restore();
  } else if (Math.sin(armAngle * 2) < 0) {
    ctx.textAlign = "right";
    ctx.textBaseline = "middle";
    ctx.fillStyle = this.axisColor;
    ctx.fillText(text, point2d.x, point2d.y);
  } else {
    ctx.textAlign = "left";
    ctx.textBaseline = "middle";
    ctx.fillStyle = this.axisColor;
    ctx.fillText(text, point2d.x, point2d.y);
  }
};

/**
 *
 * @param {CanvasRenderingContext2D} ctx
 * @param {vis.Point3d} point3d
 * @param {string} text
 * @param {number} armAngle
 * @param {number} [yMargin]
 */
Graph3d.prototype.drawAxisLabelYRotate = function (ctx, point3d, text, armAngle, yMargin) {
  const point2d = this._convert3Dto2D(point3d);
  if (Math.cos(armAngle * 2) < 0) {
    ctx.save();
    ctx.translate(point2d.x, point2d.y);
    ctx.rotate(-Math.PI / 2);
    ctx.textAlign = "right";
    ctx.textBaseline = "middle";
    ctx.fillStyle = this.axisColor;
    ctx.fillText(text, 0, 0);
    ctx.restore();
  } else if (Math.sin(armAngle * 2) > 0) {
    ctx.textAlign = "right";
    ctx.textBaseline = "middle";
    ctx.fillStyle = this.axisColor;
    ctx.fillText(text, point2d.x, point2d.y);
  } else {
    ctx.textAlign = "left";
    ctx.textBaseline = "middle";
    ctx.fillStyle = this.axisColor;
    ctx.fillText(text, point2d.x, point2d.y);
  }
};

/**
 *
 * @param {CanvasRenderingContext2D} ctx
 * @param {vis.Point3d} point3d
 * @param {string} text
 * @param {number} [offset]
 */
Graph3d.prototype.drawAxisLabelZRotate = function (ctx, point3d, text, offset) {
  if (offset === undefined) {
    offset = 0;
  }
  const point2d = this._convert3Dto2D(point3d);
  ctx.textAlign = "right";
  ctx.textBaseline = "middle";
  ctx.fillStyle = this.axisColor;
  ctx.fillText(text, point2d.x - offset, point2d.y);
};

/**
 
 
 /**
 Draw a line between 2d points 'from' and 'to'.
 
 If stroke style specified, set that as well.
 * @param {CanvasRenderingContext2D} ctx
 * @param {vis.Point2d} from
 * @param {vis.Point2d} to
 * @param {string} [strokeStyle]
 * @private
 */
Graph3d.prototype._line3d = function (ctx, from, to, strokeStyle) {
  const from2d = this._convert3Dto2D(from);
  const to2d = this._convert3Dto2D(to);
  this._line(ctx, from2d, to2d, strokeStyle);
};

/**
 * Redraw the axis
 */
Graph3d.prototype._redrawAxis = function () {
  const ctx = this._getContext();
  let from, to, step, prettyStep, text, xText, yText, zText, offset, xOffset, yOffset;

  // TODO: get the actual rendered style of the containerElement
  //ctx.font = this.containerElement.style.font;
  //ctx.font = 24 / this.camera.getArmLength() + 'px arial';
  ctx.font = this.axisFontSize / this.camera.getArmLength() + "px " + this.axisFontType;

  // calculate the length for the short grid lines
  const gridLenX = 0.025 / this.scale.x;
  const gridLenY = 0.025 / this.scale.y;
  const textMargin = 5 / this.camera.getArmLength(); // px
  const armAngle = this.camera.getArmRotation().horizontal;
  const armVector = new Point2d(Math.cos(armAngle), Math.sin(armAngle));
  const xRange = this.xRange;
  const yRange = this.yRange;
  const zRange = this.zRange;
  let point3d;

  // draw x-grid lines
  ctx.lineWidth = 1;
  prettyStep = this.defaultXStep === undefined;
  step = new StepNumber(xRange.min, xRange.max, this.xStep, prettyStep);
  step.start(true);
  while (!step.end()) {
    const x = step.getCurrent();
    if (this.showGrid) {
      from = new Point3d(x, yRange.min, zRange.min);
      to = new Point3d(x, yRange.max, zRange.min);
      this._line3d(ctx, from, to, this.gridColor);
    } else if (this.showXAxis) {
      from = new Point3d(x, yRange.min, zRange.min);
      to = new Point3d(x, yRange.min + gridLenX, zRange.min);
      this._line3d(ctx, from, to, this.axisColor);
      from = new Point3d(x, yRange.max, zRange.min);
      to = new Point3d(x, yRange.max - gridLenX, zRange.min);
      this._line3d(ctx, from, to, this.axisColor);
    }
    if (this.showXAxis) {
      yText = armVector.x > 0 ? yRange.min : yRange.max;
      point3d = new Point3d(x, yText, zRange.min);
      const msg = "  " + this.xValueLabel(x) + "  ";
      this._drawAxisLabelX.call(this, ctx, point3d, msg, armAngle, textMargin);
    }
    step.next();
  }

  // draw y-grid lines
  ctx.lineWidth = 1;
  prettyStep = this.defaultYStep === undefined;
  step = new StepNumber(yRange.min, yRange.max, this.yStep, prettyStep);
  step.start(true);
  while (!step.end()) {
    const y = step.getCurrent();
    if (this.showGrid) {
      from = new Point3d(xRange.min, y, zRange.min);
      to = new Point3d(xRange.max, y, zRange.min);
      this._line3d(ctx, from, to, this.gridColor);
    } else if (this.showYAxis) {
      from = new Point3d(xRange.min, y, zRange.min);
      to = new Point3d(xRange.min + gridLenY, y, zRange.min);
      this._line3d(ctx, from, to, this.axisColor);
      from = new Point3d(xRange.max, y, zRange.min);
      to = new Point3d(xRange.max - gridLenY, y, zRange.min);
      this._line3d(ctx, from, to, this.axisColor);
    }
    if (this.showYAxis) {
      xText = armVector.y > 0 ? xRange.min : xRange.max;
      point3d = new Point3d(xText, y, zRange.min);
      const msg = "  " + this.yValueLabel(y) + "  ";
      this._drawAxisLabelY.call(this, ctx, point3d, msg, armAngle, textMargin);
    }
    step.next();
  }

  // draw z-grid lines and axis
  if (this.showZAxis) {
    ctx.lineWidth = 1;
    prettyStep = this.defaultZStep === undefined;
    step = new StepNumber(zRange.min, zRange.max, this.zStep, prettyStep);
    step.start(true);
    xText = armVector.x > 0 ? xRange.min : xRange.max;
    yText = armVector.y < 0 ? yRange.min : yRange.max;
    while (!step.end()) {
      const z = step.getCurrent();

      // TODO: make z-grid lines really 3d?
      const from3d = new Point3d(xText, yText, z);
      const from2d = this._convert3Dto2D(from3d);
      to = new Point2d(from2d.x - textMargin, from2d.y);
      this._line(ctx, from2d, to, this.axisColor);
      const msg = this.zValueLabel(z) + " ";
      this._drawAxisLabelZ.call(this, ctx, from3d, msg, 5);
      step.next();
    }
    ctx.lineWidth = 1;
    from = new Point3d(xText, yText, zRange.min);
    to = new Point3d(xText, yText, zRange.max);
    this._line3d(ctx, from, to, this.axisColor);
  }

  // draw x-axis
  if (this.showXAxis) {
    let xMin2d;
    let xMax2d;
    ctx.lineWidth = 1;

    // line at yMin
    xMin2d = new Point3d(xRange.min, yRange.min, zRange.min);
    xMax2d = new Point3d(xRange.max, yRange.min, zRange.min);
    this._line3d(ctx, xMin2d, xMax2d, this.axisColor);
    // line at ymax
    xMin2d = new Point3d(xRange.min, yRange.max, zRange.min);
    xMax2d = new Point3d(xRange.max, yRange.max, zRange.min);
    this._line3d(ctx, xMin2d, xMax2d, this.axisColor);
  }

  // draw y-axis
  if (this.showYAxis) {
    ctx.lineWidth = 1;
    // line at xMin
    from = new Point3d(xRange.min, yRange.min, zRange.min);
    to = new Point3d(xRange.min, yRange.max, zRange.min);
    this._line3d(ctx, from, to, this.axisColor);
    // line at xMax
    from = new Point3d(xRange.max, yRange.min, zRange.min);
    to = new Point3d(xRange.max, yRange.max, zRange.min);
    this._line3d(ctx, from, to, this.axisColor);
  }

  // draw x-label
  const xLabel = this.xLabel;
  if (xLabel.length > 0 && this.showXAxis) {
    yOffset = 0.1 / this.scale.y;
    xText = (xRange.max + 3 * xRange.min) / 4;
    yText = armVector.x > 0 ? yRange.min - yOffset : yRange.max + yOffset;
    text = new Point3d(xText, yText, zRange.min);
    this.drawAxisLabelX(ctx, text, xLabel, armAngle);
  }

  // draw y-label
  const yLabel = this.yLabel;
  if (yLabel.length > 0 && this.showYAxis) {
    xOffset = 0.1 / this.scale.x;
    xText = armVector.y > 0 ? xRange.min - xOffset : xRange.max + xOffset;
    yText = (yRange.max + 3 * yRange.min) / 4;
    text = new Point3d(xText, yText, zRange.min);
    this.drawAxisLabelY(ctx, text, yLabel, armAngle);
  }

  // draw z-label
  const zLabel = this.zLabel;
  if (zLabel.length > 0 && this.showZAxis) {
    offset = 30; // pixels.  // TODO: relate to the max width of the values on the z axis?
    xText = armVector.x > 0 ? xRange.min : xRange.max;
    yText = armVector.y < 0 ? yRange.min : yRange.max;
    zText = (zRange.max + 3 * zRange.min) / 4;
    text = new Point3d(xText, yText, zText);
    this.drawAxisLabelZ(ctx, text, zLabel, offset);
  }
};

/**
 *
 * @param {vis.Point3d} point
 * @returns {*}
 * @private
 */
Graph3d.prototype._getStrokeWidth = function (point) {
  if (point !== undefined) {
    if (this.showPerspective) {
      return 1 / -point.trans.z * this.dataColor.strokeWidth;
    } else {
      return -(this.eye.z / this.camera.getArmLength()) * this.dataColor.strokeWidth;
    }
  }
  return this.dataColor.strokeWidth;
};

// -----------------------------------------------------------------------------
// Drawing primitives for the graphs
// -----------------------------------------------------------------------------

/**
 * Draw a bar element in the view with the given properties.
 * @param {CanvasRenderingContext2D} ctx
 * @param {object} point
 * @param {number} xWidth
 * @param {number} yWidth
 * @param {string} color
 * @param {string} borderColor
 * @private
 */
Graph3d.prototype._redrawBar = function (ctx, point, xWidth, yWidth, color, borderColor) {
  let surface;

  // calculate all corner points
  const me = this;
  const point3d = point.point;
  const zMin = this.zRange.min;
  const top = [{
    point: new Point3d(point3d.x - xWidth, point3d.y - yWidth, point3d.z)
  }, {
    point: new Point3d(point3d.x + xWidth, point3d.y - yWidth, point3d.z)
  }, {
    point: new Point3d(point3d.x + xWidth, point3d.y + yWidth, point3d.z)
  }, {
    point: new Point3d(point3d.x - xWidth, point3d.y + yWidth, point3d.z)
  }];
  const bottom = [{
    point: new Point3d(point3d.x - xWidth, point3d.y - yWidth, zMin)
  }, {
    point: new Point3d(point3d.x + xWidth, point3d.y - yWidth, zMin)
  }, {
    point: new Point3d(point3d.x + xWidth, point3d.y + yWidth, zMin)
  }, {
    point: new Point3d(point3d.x - xWidth, point3d.y + yWidth, zMin)
  }];

  // calculate screen location of the points
  _forEachInstanceProperty(top).call(top, function (obj) {
    obj.screen = me._convert3Dto2D(obj.point);
  });
  _forEachInstanceProperty(bottom).call(bottom, function (obj) {
    obj.screen = me._convert3Dto2D(obj.point);
  });

  // create five sides, calculate both corner points and center points
  const surfaces = [{
    corners: top,
    center: Point3d.avg(bottom[0].point, bottom[2].point)
  }, {
    corners: [top[0], top[1], bottom[1], bottom[0]],
    center: Point3d.avg(bottom[1].point, bottom[0].point)
  }, {
    corners: [top[1], top[2], bottom[2], bottom[1]],
    center: Point3d.avg(bottom[2].point, bottom[1].point)
  }, {
    corners: [top[2], top[3], bottom[3], bottom[2]],
    center: Point3d.avg(bottom[3].point, bottom[2].point)
  }, {
    corners: [top[3], top[0], bottom[0], bottom[3]],
    center: Point3d.avg(bottom[0].point, bottom[3].point)
  }];
  point.surfaces = surfaces;

  // calculate the distance of each of the surface centers to the camera
  for (let j = 0; j < surfaces.length; j++) {
    surface = surfaces[j];
    const transCenter = this._convertPointToTranslation(surface.center);
    surface.dist = this.showPerspective ? transCenter.length() : -transCenter.z;
    // TODO: this dept calculation doesn't work 100% of the cases due to perspective,
    //     but the current solution is fast/simple and works in 99.9% of all cases
    //     the issue is visible in example 14, with graph.setCameraPosition({horizontal: 2.97, vertical: 0.5, distance: 0.9})
  }

  // order the surfaces by their (translated) depth
  _sortInstanceProperty(surfaces).call(surfaces, function (a, b) {
    const diff = b.dist - a.dist;
    if (diff) return diff;

    // if equal depth, sort the top surface last
    if (a.corners === top) return 1;
    if (b.corners === top) return -1;

    // both are equal
    return 0;
  });

  // draw the ordered surfaces
  ctx.lineWidth = this._getStrokeWidth(point);
  ctx.strokeStyle = borderColor;
  ctx.fillStyle = color;
  // NOTE: we start at j=2 instead of j=0 as we don't need to draw the two surfaces at the backside
  for (let j = 2; j < surfaces.length; j++) {
    surface = surfaces[j];
    this._polygon(ctx, surface.corners);
  }
};

/**
 * Draw a polygon using the passed points and fill it with the passed style and stroke.
 * @param {CanvasRenderingContext2D} ctx
 * @param {Array.<vis.Point3d>} points      an array of points.
 * @param {string} [fillStyle] the fill style to set
 * @param {string} [strokeStyle] the stroke style to set
 */
Graph3d.prototype._polygon = function (ctx, points, fillStyle, strokeStyle) {
  if (points.length < 2) {
    return;
  }
  if (fillStyle !== undefined) {
    ctx.fillStyle = fillStyle;
  }
  if (strokeStyle !== undefined) {
    ctx.strokeStyle = strokeStyle;
  }
  ctx.beginPath();
  ctx.moveTo(points[0].screen.x, points[0].screen.y);
  for (let i = 1; i < points.length; ++i) {
    const point = points[i];
    ctx.lineTo(point.screen.x, point.screen.y);
  }
  ctx.closePath();
  _fillInstanceProperty(ctx).call(ctx);
  ctx.stroke(); // TODO: only draw stroke when strokeWidth > 0
};

/**
 * @param {CanvasRenderingContext2D} ctx
 * @param {object} point
 * @param {string} color
 * @param {string} borderColor
 * @param {number} [size]
 * @private
 */
Graph3d.prototype._drawCircle = function (ctx, point, color, borderColor, size) {
  const radius = this._calcRadius(point, size);
  ctx.lineWidth = this._getStrokeWidth(point);
  ctx.strokeStyle = borderColor;
  ctx.fillStyle = color;
  ctx.beginPath();
  ctx.arc(point.screen.x, point.screen.y, radius, 0, Math.PI * 2, true);
  _fillInstanceProperty(ctx).call(ctx);
  ctx.stroke();
};

/**
 * Determine the colors for the 'regular' graph styles.
 * @param {object} point
 * @returns {{fill, border}}
 * @private
 */
Graph3d.prototype._getColorsRegular = function (point) {
  const f = (point.point.value - this.valueRange.min) * this.scale.value;
  const color = this._colormap(f, 1);
  const borderColor = this._colormap(f, 0.8);
  return {
    fill: color,
    border: borderColor
  };
};

/**
 * Get the colors for the 'color' graph styles.
 * These styles are currently: 'bar-color' and 'dot-color'
 * Color may be set as a string representation of HTML color, like #ff00ff,
 * or calculated from a number, for example, distance from this point
 * The first option is useful when we have some pre-given legend, to which we have to adjust ourselves
 * The second option is useful when we are interested in automatically setting the color, from some value,
 * using some color scale
 * @param {object} point
 * @returns {{fill: *, border: *}}
 * @private
 */
Graph3d.prototype._getColorsColor = function (point) {
  // calculate the color based on the value
  let color, borderColor, pointStyle;
  if (point && point.point && point.point.data && point.point.data.style) {
    pointStyle = point.point.data.style;
  }
  if (pointStyle && typeof pointStyle === "object" && _fillInstanceProperty(pointStyle) && pointStyle.stroke) {
    return {
      fill: _fillInstanceProperty(pointStyle),
      border: pointStyle.stroke
    };
  }
  if (typeof point.point.value === "string") {
    color = point.point.value;
    borderColor = point.point.value;
  } else {
    const f = (point.point.value - this.valueRange.min) * this.scale.value;
    color = this._colormap(f, 1);
    borderColor = this._colormap(f, 0.8);
  }
  return {
    fill: color,
    border: borderColor
  };
};

/**
 * Get the colors for the 'size' graph styles.
 * These styles are currently: 'bar-size' and 'dot-size'
 * @returns {{fill: *, border: (string|colorOptions.stroke|{string, undefined}|string|colorOptions.stroke|{string}|*)}}
 * @private
 */
Graph3d.prototype._getColorsSize = function () {
  return {
    fill: _fillInstanceProperty(this.dataColor),
    border: this.dataColor.stroke
  };
};

/**
 * Determine the color corresponding to a given value on the color scale.
 * @param {number} [x] the data value to be mapped running from 0 to 1
 * @param {number} [v] scale factor between 0 and 1 for the color brightness
 * @returns {string}
 * @private
 */
Graph3d.prototype._colormap = function (x) {
  let v = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 1;
  let r, g, b, a;
  const colormap = this.colormap;
  if (_Array$isArray(colormap)) {
    const maxIndex = colormap.length - 1;
    const startIndex = Math.max(Math.floor(x * maxIndex), 0);
    const endIndex = Math.min(startIndex + 1, maxIndex);
    const innerRatio = x * maxIndex - startIndex;
    const min = colormap[startIndex];
    const max = colormap[endIndex];
    r = min.r + innerRatio * (max.r - min.r);
    g = min.g + innerRatio * (max.g - min.g);
    b = min.b + innerRatio * (max.b - min.b);
  } else if (typeof colormap === "function") {
    var _colormap = colormap(x);
    r = _colormap.r;
    g = _colormap.g;
    b = _colormap.b;
    a = _colormap.a;
  } else {
    const hue = (1 - x) * 240;
    var _util$HSVToRGB = HSVToRGB(hue / 360, 1, 1);
    r = _util$HSVToRGB.r;
    g = _util$HSVToRGB.g;
    b = _util$HSVToRGB.b;
  }
  if (typeof a === "number" && !_Number$isNaN(a)) {
    var _context, _context2, _context3;
    return _concatInstanceProperty(_context = _concatInstanceProperty(_context2 = _concatInstanceProperty(_context3 = "RGBA(".concat(Math.round(r * v), ", ")).call(_context3, Math.round(g * v), ", ")).call(_context2, Math.round(b * v), ", ")).call(_context, a, ")");
  } else {
    var _context4, _context5;
    return _concatInstanceProperty(_context4 = _concatInstanceProperty(_context5 = "RGB(".concat(Math.round(r * v), ", ")).call(_context5, Math.round(g * v), ", ")).call(_context4, Math.round(b * v), ")");
  }
};

/**
 * Determine the size of a point on-screen, as determined by the
 * distance to the camera.
 * @param {object} point
 * @param {number} [size] the size that needs to be translated to screen coordinates.
 *             optional; if not passed, use the default point size.
 * @returns {number}
 * @private
 */
Graph3d.prototype._calcRadius = function (point, size) {
  if (size === undefined) {
    size = this._dotSize();
  }
  let radius;
  if (this.showPerspective) {
    radius = size / -point.trans.z;
  } else {
    radius = size * -(this.eye.z / this.camera.getArmLength());
  }
  if (radius < 0) {
    radius = 0;
  }
  return radius;
};

// -----------------------------------------------------------------------------
// Methods for drawing points per graph style.
// -----------------------------------------------------------------------------

/**
 * Draw single datapoint for graph style 'bar'.
 * @param {CanvasRenderingContext2D} ctx
 * @param {object} point
 * @private
 */
Graph3d.prototype._redrawBarGraphPoint = function (ctx, point) {
  const xWidth = this.xBarWidth / 2;
  const yWidth = this.yBarWidth / 2;
  const colors = this._getColorsRegular(point);
  this._redrawBar(ctx, point, xWidth, yWidth, _fillInstanceProperty(colors), colors.border);
};

/**
 * Draw single datapoint for graph style 'bar-color'.
 * @param {CanvasRenderingContext2D} ctx
 * @param {object} point
 * @private
 */
Graph3d.prototype._redrawBarColorGraphPoint = function (ctx, point) {
  const xWidth = this.xBarWidth / 2;
  const yWidth = this.yBarWidth / 2;
  const colors = this._getColorsColor(point);
  this._redrawBar(ctx, point, xWidth, yWidth, _fillInstanceProperty(colors), colors.border);
};

/**
 * Draw single datapoint for graph style 'bar-size'.
 * @param {CanvasRenderingContext2D} ctx
 * @param {object} point
 * @private
 */
Graph3d.prototype._redrawBarSizeGraphPoint = function (ctx, point) {
  // calculate size for the bar
  const fraction = (point.point.value - this.valueRange.min) / this.valueRange.range();
  const xWidth = this.xBarWidth / 2 * (fraction * 0.8 + 0.2);
  const yWidth = this.yBarWidth / 2 * (fraction * 0.8 + 0.2);
  const colors = this._getColorsSize();
  this._redrawBar(ctx, point, xWidth, yWidth, _fillInstanceProperty(colors), colors.border);
};

/**
 * Draw single datapoint for graph style 'dot'.
 * @param {CanvasRenderingContext2D} ctx
 * @param {object} point
 * @private
 */
Graph3d.prototype._redrawDotGraphPoint = function (ctx, point) {
  const colors = this._getColorsRegular(point);
  this._drawCircle(ctx, point, _fillInstanceProperty(colors), colors.border);
};

/**
 * Draw single datapoint for graph style 'dot-line'.
 * @param {CanvasRenderingContext2D} ctx
 * @param {object} point
 * @private
 */
Graph3d.prototype._redrawDotLineGraphPoint = function (ctx, point) {
  // draw a vertical line from the XY-plane to the graph value
  const from = this._convert3Dto2D(point.bottom);
  ctx.lineWidth = 1;
  this._line(ctx, from, point.screen, this.gridColor);
  this._redrawDotGraphPoint(ctx, point);
};

/**
 * Draw single datapoint for graph style 'dot-color'.
 * @param {CanvasRenderingContext2D} ctx
 * @param {object} point
 * @private
 */
Graph3d.prototype._redrawDotColorGraphPoint = function (ctx, point) {
  const colors = this._getColorsColor(point);
  this._drawCircle(ctx, point, _fillInstanceProperty(colors), colors.border);
};

/**
 * Draw single datapoint for graph style 'dot-size'.
 * @param {CanvasRenderingContext2D} ctx
 * @param {object} point
 * @private
 */
Graph3d.prototype._redrawDotSizeGraphPoint = function (ctx, point) {
  const dotSize = this._dotSize();
  const fraction = (point.point.value - this.valueRange.min) / this.valueRange.range();
  const sizeMin = dotSize * this.dotSizeMinFraction;
  const sizeRange = dotSize * this.dotSizeMaxFraction - sizeMin;
  const size = sizeMin + sizeRange * fraction;
  const colors = this._getColorsSize();
  this._drawCircle(ctx, point, _fillInstanceProperty(colors), colors.border, size);
};

/**
 * Draw single datapoint for graph style 'surface'.
 * @param {CanvasRenderingContext2D} ctx
 * @param {object} point
 * @private
 */
Graph3d.prototype._redrawSurfaceGraphPoint = function (ctx, point) {
  const right = point.pointRight;
  const top = point.pointTop;
  const cross = point.pointCross;
  if (point === undefined || right === undefined || top === undefined || cross === undefined) {
    return;
  }
  let topSideVisible = true;
  let fillStyle;
  let strokeStyle;
  let cosViewAngle;
  if (this.showGrayBottom || this.showShadow) {
    // calculate the cross product of the two vectors from center
    // to left and right, in order to know whether we are looking at the
    // bottom or at the top side. We can also use the cross product
    // for calculating light intensity
    const aDiff = Point3d.subtract(cross.trans, point.trans);
    const bDiff = Point3d.subtract(top.trans, right.trans);
    const surfaceNormal = Point3d.crossProduct(aDiff, bDiff);
    if (this.showPerspective) {
      const surfacePosition = Point3d.avg(Point3d.avg(point.trans, cross.trans), Point3d.avg(right.trans, top.trans));
      // This corresponds to diffuse lighting with light source at (0, 0, 0).
      // More generally, we would need `surfacePosition - lightPosition`:
      cosViewAngle = -Point3d.dotProduct(surfaceNormal.normalize(), surfacePosition.normalize());
    } else {
      cosViewAngle = surfaceNormal.z / surfaceNormal.length();
    }
    topSideVisible = cosViewAngle > 0;
  }
  if (topSideVisible || !this.showGrayBottom) {
    const vAvg = (point.point.value + right.point.value + top.point.value + cross.point.value) / 4;
    const ratio = (vAvg - this.valueRange.min) * this.scale.value;
    // lighting factor. TODO: let user specify lighting model as function(?)
    const v = this.showShadow ? (1 + cosViewAngle) / 2 : 1;
    fillStyle = this._colormap(ratio, v);
  } else {
    fillStyle = "gray";
  }
  if (this.showSurfaceGrid) {
    strokeStyle = this.axisColor; // TODO: should be customizable
  } else {
    strokeStyle = fillStyle;
  }
  ctx.lineWidth = this._getStrokeWidth(point);
  // TODO: only draw stroke when strokeWidth > 0

  const points = [point, right, cross, top];
  this._polygon(ctx, points, fillStyle, strokeStyle);
};

/**
 * Helper method for _redrawGridGraphPoint()
 * @param {CanvasRenderingContext2D} ctx
 * @param {object} from
 * @param {object} to
 * @private
 */
Graph3d.prototype._drawGridLine = function (ctx, from, to) {
  if (from === undefined || to === undefined) {
    return;
  }
  const vAvg = (from.point.value + to.point.value) / 2;
  const f = (vAvg - this.valueRange.min) * this.scale.value;
  ctx.lineWidth = this._getStrokeWidth(from) * 2;
  ctx.strokeStyle = this._colormap(f, 1);
  this._line(ctx, from.screen, to.screen);
};

/**
 * Draw single datapoint for graph style 'Grid'.
 * @param {CanvasRenderingContext2D} ctx
 * @param {object} point
 * @private
 */
Graph3d.prototype._redrawGridGraphPoint = function (ctx, point) {
  this._drawGridLine(ctx, point, point.pointRight);
  this._drawGridLine(ctx, point, point.pointTop);
};

/**
 * Draw single datapoint for graph style 'line'.
 * @param {CanvasRenderingContext2D} ctx
 * @param {object} point
 * @private
 */
Graph3d.prototype._redrawLineGraphPoint = function (ctx, point) {
  if (point.pointNext === undefined) {
    return;
  }
  ctx.lineWidth = this._getStrokeWidth(point);
  ctx.strokeStyle = this.dataColor.stroke;
  this._line(ctx, point.screen, point.pointNext.screen);
};

/**
 * Draw all datapoints for currently selected graph style.
 *
 */
Graph3d.prototype._redrawDataGraph = function () {
  const ctx = this._getContext();
  let i;
  if (this.dataPoints === undefined || this.dataPoints.length <= 0) return; // TODO: throw exception?

  this._calcTranslations(this.dataPoints);
  for (i = 0; i < this.dataPoints.length; i++) {
    const point = this.dataPoints[i];

    // Using call() ensures that the correct context is used
    this._pointDrawingMethod.call(this, ctx, point);
  }
};

// -----------------------------------------------------------------------------
// End methods for drawing points per graph style.
// -----------------------------------------------------------------------------

/**
 * Store startX, startY and startOffset for mouse operations
 * @param {Event}     event     The event that occurred
 */
Graph3d.prototype._storeMousePosition = function (event) {
  // get mouse position (different code for IE and all other browsers)
  this.startMouseX = getMouseX(event);
  this.startMouseY = getMouseY(event);
  this._startCameraOffset = this.camera.getOffset();
};

/**
 * Start a moving operation inside the provided parent element
 * @param {Event}     event     The event that occurred (required for
 *                  retrieving the  mouse position)
 */
Graph3d.prototype._onMouseDown = function (event) {
  event = event || window.event;

  // check if mouse is still down (may be up when focus is lost for example
  // in an iframe)
  if (this.leftButtonDown) {
    this._onMouseUp(event);
  }

  // only react on left mouse button down
  this.leftButtonDown = event.which ? event.which === 1 : event.button === 1;
  if (!this.leftButtonDown && !this.touchDown) return;
  this._storeMousePosition(event);
  this.startStart = new Date(this.start);
  this.startEnd = new Date(this.end);
  this.startArmRotation = this.camera.getArmRotation();
  this.frame.style.cursor = "move";

  // add event listeners to handle moving the contents
  // we store the function onmousemove and onmouseup in the graph, so we can
  // remove the eventlisteners lateron in the function mouseUp()
  const me = this;
  this.onmousemove = function (event) {
    me._onMouseMove(event);
  };
  this.onmouseup = function (event) {
    me._onMouseUp(event);
  };
  document.addEventListener("mousemove", me.onmousemove);
  document.addEventListener("mouseup", me.onmouseup);
  preventDefault(event);
};

/**
 * Perform moving operating.
 * This function activated from within the funcion Graph.mouseDown().
 * @param {Event}   event  Well, eehh, the event
 */
Graph3d.prototype._onMouseMove = function (event) {
  this.moving = true;
  event = event || window.event;

  // calculate change in mouse position
  const diffX = _parseFloat(getMouseX(event)) - this.startMouseX;
  const diffY = _parseFloat(getMouseY(event)) - this.startMouseY;

  // move with ctrl or rotate by other
  if (event && event.ctrlKey === true) {
    // calculate change in mouse position
    const scaleX = this.frame.clientWidth * 0.5;
    const scaleY = this.frame.clientHeight * 0.5;
    const offXNew = (this._startCameraOffset.x || 0) - diffX / scaleX * this.camera.armLength * 0.8;
    const offYNew = (this._startCameraOffset.y || 0) + diffY / scaleY * this.camera.armLength * 0.8;
    this.camera.setOffset(offXNew, offYNew);
    this._storeMousePosition(event);
  } else {
    let horizontalNew = this.startArmRotation.horizontal + diffX / 200;
    let verticalNew = this.startArmRotation.vertical + diffY / 200;
    const snapAngle = 4; // degrees
    const snapValue = Math.sin(snapAngle / 360 * 2 * Math.PI);

    // snap horizontally to nice angles at 0pi, 0.5pi, 1pi, 1.5pi, etc...
    // the -0.001 is to take care that the vertical axis is always drawn at the left front corner
    if (Math.abs(Math.sin(horizontalNew)) < snapValue) {
      horizontalNew = Math.round(horizontalNew / Math.PI) * Math.PI - 0.001;
    }
    if (Math.abs(Math.cos(horizontalNew)) < snapValue) {
      horizontalNew = (Math.round(horizontalNew / Math.PI - 0.5) + 0.5) * Math.PI - 0.001;
    }

    // snap vertically to nice angles
    if (Math.abs(Math.sin(verticalNew)) < snapValue) {
      verticalNew = Math.round(verticalNew / Math.PI) * Math.PI;
    }
    if (Math.abs(Math.cos(verticalNew)) < snapValue) {
      verticalNew = (Math.round(verticalNew / Math.PI - 0.5) + 0.5) * Math.PI;
    }
    this.camera.setArmRotation(horizontalNew, verticalNew);
  }
  this.redraw();

  // fire a cameraPositionChange event
  const parameters = this.getCameraPosition();
  this.emit("cameraPositionChange", parameters);
  preventDefault(event);
};

/**
 * Stop moving operating.
 * This function activated from within the funcion Graph.mouseDown().
 * @param {Event}  event   The event
 */
Graph3d.prototype._onMouseUp = function (event) {
  this.frame.style.cursor = "auto";
  this.leftButtonDown = false;

  // remove event listeners here
  document.removeEventListener("mousemove", this.onmousemove);
  document.removeEventListener("mouseup", this.onmouseup);
  preventDefault(event);
};

/**
 * @param {Event}  event   The event
 */
Graph3d.prototype._onClick = function (event) {
  // NOTE: onclick_callback is deprecated and may be removed in a future version.
  if (!this.onclick_callback && !this.hasListeners("click")) return;
  if (!this.moving) {
    const boundingRect = this.frame.getBoundingClientRect();
    const mouseX = getMouseX(event) - boundingRect.left;
    const mouseY = getMouseY(event) - boundingRect.top;
    const dataPoint = this._dataPointFromXY(mouseX, mouseY);
    if (dataPoint) {
      if (this.onclick_callback) this.onclick_callback(dataPoint.point.data);
      this.emit("click", dataPoint.point.data);
    }
  } else {
    // disable onclick callback, if it came immediately after rotate/pan
    this.moving = false;
  }
  preventDefault(event);
};

/**
 * After having moved the mouse, a tooltip should pop up when the mouse is resting on a data point
 * @param {Event}  event   A mouse move event
 */
Graph3d.prototype._onTooltip = function (event) {
  const delay = this.tooltipDelay; // ms
  const boundingRect = this.frame.getBoundingClientRect();
  const mouseX = getMouseX(event) - boundingRect.left;
  const mouseY = getMouseY(event) - boundingRect.top;
  if (!this.showTooltip) {
    return;
  }
  if (this.tooltipTimeout) {
    clearTimeout(this.tooltipTimeout);
  }

  // (delayed) display of a tooltip only if no mouse button is down
  if (this.leftButtonDown) {
    this._hideTooltip();
    return;
  }
  if (this.tooltip && this.tooltip.dataPoint) {
    // tooltip is currently visible
    const dataPoint = this._dataPointFromXY(mouseX, mouseY);
    if (dataPoint !== this.tooltip.dataPoint) {
      // datapoint changed
      if (dataPoint) {
        this._showTooltip(dataPoint);
      } else {
        this._hideTooltip();
      }
    }
  } else {
    // tooltip is currently not visible
    const me = this;
    this.tooltipTimeout = _setTimeout(function () {
      me.tooltipTimeout = null;

      // show a tooltip if we have a data point
      const dataPoint = me._dataPointFromXY(mouseX, mouseY);
      if (dataPoint) {
        me._showTooltip(dataPoint);
      }
    }, delay);
  }
};

/**
 * Event handler for touchstart event on mobile devices
 * @param {Event}  event   The event
 */
Graph3d.prototype._onTouchStart = function (event) {
  this.touchDown = true;
  const me = this;
  this.ontouchmove = function (event) {
    me._onTouchMove(event);
  };
  this.ontouchend = function (event) {
    me._onTouchEnd(event);
  };
  document.addEventListener("touchmove", me.ontouchmove);
  document.addEventListener("touchend", me.ontouchend);
  this._onMouseDown(event);
};

/**
 * Event handler for touchmove event on mobile devices
 * @param {Event}  event   The event
 */
Graph3d.prototype._onTouchMove = function (event) {
  this._onMouseMove(event);
};

/**
 * Event handler for touchend event on mobile devices
 * @param {Event}  event   The event
 */
Graph3d.prototype._onTouchEnd = function (event) {
  this.touchDown = false;
  document.removeEventListener("touchmove", this.ontouchmove);
  document.removeEventListener("touchend", this.ontouchend);
  this._onMouseUp(event);
};

/**
 * Event handler for mouse wheel event, used to zoom the graph
 * Code from http://adomas.org/javascript-mouse-wheel/
 * @param {Event}  event   The event
 */
Graph3d.prototype._onWheel = function (event) {
  if (!event) /* For IE. */event = window.event;
  if (this.zoomable && (!this.ctrlToZoom || event.ctrlKey)) {
    // retrieve delta
    let delta = 0;
    if (event.wheelDelta) {
      /* IE/Opera. */
      delta = event.wheelDelta / 120;
    } else if (event.detail) {
      /* Mozilla case. */
      // In Mozilla, sign of delta is different than in IE.
      // Also, delta is multiple of 3.
      delta = -event.detail / 3;
    }

    // If delta is nonzero, handle it.
    // Basically, delta is now positive if wheel was scrolled up,
    // and negative, if wheel was scrolled down.
    if (delta) {
      const oldLength = this.camera.getArmLength();
      const newLength = oldLength * (1 - delta / 10);
      this.camera.setArmLength(newLength);
      this.redraw();
      this._hideTooltip();
    }

    // fire a cameraPositionChange event
    const parameters = this.getCameraPosition();
    this.emit("cameraPositionChange", parameters);

    // Prevent default actions caused by mouse wheel.
    // That might be ugly, but we handle scrolls somehow
    // anyway, so don't bother here..
    preventDefault(event);
  }
};

/**
 * Test whether a point lies inside given 2D triangle
 * @param   {vis.Point2d}   point
 * @param   {vis.Point2d[]} triangle
 * @returns {boolean}   true if given point lies inside or on the edge of the
 *                      triangle, false otherwise
 * @private
 */
Graph3d.prototype._insideTriangle = function (point, triangle) {
  const a = triangle[0],
    b = triangle[1],
    c = triangle[2];

  /**
   *
   * @param {number} x
   * @returns {number}
   */
  function sign(x) {
    return x > 0 ? 1 : x < 0 ? -1 : 0;
  }
  const as = sign((b.x - a.x) * (point.y - a.y) - (b.y - a.y) * (point.x - a.x));
  const bs = sign((c.x - b.x) * (point.y - b.y) - (c.y - b.y) * (point.x - b.x));
  const cs = sign((a.x - c.x) * (point.y - c.y) - (a.y - c.y) * (point.x - c.x));

  // each of the three signs must be either equal to each other or zero
  return (as == 0 || bs == 0 || as == bs) && (bs == 0 || cs == 0 || bs == cs) && (as == 0 || cs == 0 || as == cs);
};

/**
 * Find a data point close to given screen position (x, y)
 * @param   {number} x
 * @param   {number} y
 * @returns {object | null} The closest data point or null if not close to any
 *                          data point
 * @private
 */
Graph3d.prototype._dataPointFromXY = function (x, y) {
  const distMax = 100; // px
  const center = new Point2d(x, y);
  let i,
    dataPoint = null,
    closestDataPoint = null,
    closestDist = null;
  if (this.style === Graph3d.STYLE.BAR || this.style === Graph3d.STYLE.BARCOLOR || this.style === Graph3d.STYLE.BARSIZE) {
    // the data points are ordered from far away to closest
    for (i = this.dataPoints.length - 1; i >= 0; i--) {
      dataPoint = this.dataPoints[i];
      const surfaces = dataPoint.surfaces;
      if (surfaces) {
        for (let s = surfaces.length - 1; s >= 0; s--) {
          // split each surface in two triangles, and see if the center point is inside one of these
          const surface = surfaces[s];
          const corners = surface.corners;
          const triangle1 = [corners[0].screen, corners[1].screen, corners[2].screen];
          const triangle2 = [corners[2].screen, corners[3].screen, corners[0].screen];
          if (this._insideTriangle(center, triangle1) || this._insideTriangle(center, triangle2)) {
            // return immediately at the first hit
            return dataPoint;
          }
        }
      }
    }
  } else {
    // find the closest data point, using distance to the center of the point on 2d screen
    for (i = 0; i < this.dataPoints.length; i++) {
      dataPoint = this.dataPoints[i];
      const point = dataPoint.screen;
      if (point) {
        const distX = Math.abs(x - point.x);
        const distY = Math.abs(y - point.y);
        const dist = Math.sqrt(distX * distX + distY * distY);
        if ((closestDist === null || dist < closestDist) && dist < distMax) {
          closestDist = dist;
          closestDataPoint = dataPoint;
        }
      }
    }
  }
  return closestDataPoint;
};

/**
 * Determine if the given style has bars
 * @param   {number} style the style to check
 * @returns {boolean} true if bar style, false otherwise
 */
Graph3d.prototype.hasBars = function (style) {
  return style == Graph3d.STYLE.BAR || style == Graph3d.STYLE.BARCOLOR || style == Graph3d.STYLE.BARSIZE;
};

/**
 * Display a tooltip for given data point
 * @param {object} dataPoint
 * @private
 */
Graph3d.prototype._showTooltip = function (dataPoint) {
  let content, line, dot;
  if (!this.tooltip) {
    content = document.createElement("div");
    _Object$assign(content.style, {}, this.tooltipStyle.content);
    content.style.position = "absolute";
    line = document.createElement("div");
    _Object$assign(line.style, {}, this.tooltipStyle.line);
    line.style.position = "absolute";
    dot = document.createElement("div");
    _Object$assign(dot.style, {}, this.tooltipStyle.dot);
    dot.style.position = "absolute";
    this.tooltip = {
      dataPoint: null,
      dom: {
        content: content,
        line: line,
        dot: dot
      }
    };
  } else {
    content = this.tooltip.dom.content;
    line = this.tooltip.dom.line;
    dot = this.tooltip.dom.dot;
  }
  this._hideTooltip();
  this.tooltip.dataPoint = dataPoint;
  if (typeof this.showTooltip === "function") {
    content.innerHTML = this.showTooltip(dataPoint.point);
  } else {
    content.innerHTML = "<table>" + "<tr><td>" + this.xLabel + ":</td><td>" + dataPoint.point.x + "</td></tr>" + "<tr><td>" + this.yLabel + ":</td><td>" + dataPoint.point.y + "</td></tr>" + "<tr><td>" + this.zLabel + ":</td><td>" + dataPoint.point.z + "</td></tr>" + "</table>";
  }
  content.style.left = "0";
  content.style.top = "0";
  this.frame.appendChild(content);
  this.frame.appendChild(line);
  this.frame.appendChild(dot);

  // calculate sizes
  const contentWidth = content.offsetWidth;
  const contentHeight = content.offsetHeight;
  const lineHeight = line.offsetHeight;
  const dotWidth = dot.offsetWidth;
  const dotHeight = dot.offsetHeight;
  let left = dataPoint.screen.x - contentWidth / 2;
  left = Math.min(Math.max(left, 10), this.frame.clientWidth - 10 - contentWidth);
  line.style.left = dataPoint.screen.x + "px";
  line.style.top = dataPoint.screen.y - lineHeight + "px";
  content.style.left = left + "px";
  content.style.top = dataPoint.screen.y - lineHeight - contentHeight + "px";
  dot.style.left = dataPoint.screen.x - dotWidth / 2 + "px";
  dot.style.top = dataPoint.screen.y - dotHeight / 2 + "px";
};

/**
 * Hide the tooltip when displayed
 * @private
 */
Graph3d.prototype._hideTooltip = function () {
  if (this.tooltip) {
    this.tooltip.dataPoint = null;
    for (const prop in this.tooltip.dom) {
      if (Object.prototype.hasOwnProperty.call(this.tooltip.dom, prop)) {
        const elem = this.tooltip.dom[prop];
        if (elem && elem.parentNode) {
          elem.parentNode.removeChild(elem);
        }
      }
    }
  }
};

/**--------------------------------------------------------------------------**/

/**
 * Get the horizontal mouse position from a mouse event
 * @param   {Event}  event
 * @returns {number} mouse x
 */
function getMouseX(event) {
  if ("clientX" in event) return event.clientX;
  return event.targetTouches[0] && event.targetTouches[0].clientX || 0;
}

/**
 * Get the vertical mouse position from a mouse event
 * @param   {Event}  event
 * @returns {number} mouse y
 */
function getMouseY(event) {
  if ("clientY" in event) return event.clientY;
  return event.targetTouches[0] && event.targetTouches[0].clientY || 0;
}

// -----------------------------------------------------------------------------
//  Public methods for specific settings
// -----------------------------------------------------------------------------

/**
 * Set the rotation and distance of the camera
 * @param {object}  pos            An object with the camera position
 * @param {number} [pos.horizontal] The horizontal rotation, between 0 and 2*PI.
 *                                 Optional, can be left undefined.
 * @param {number} [pos.vertical]  The vertical rotation, between 0 and 0.5*PI.
 *                                 if vertical=0.5*PI, the graph is shown from
 *                                 the top. Optional, can be left undefined.
 * @param {number} [pos.distance]  The (normalized) distance of the camera to the
 *                                 center of the graph, a value between 0.71 and
 *                                 5.0. Optional, can be left undefined.
 */
Graph3d.prototype.setCameraPosition = function (pos) {
  setCameraPosition(pos, this);
  this.redraw();
};

/**
 * Set a new size for the graph
 * @param {string} width  Width in pixels or percentage (for example '800px'
 *                        or '50%')
 * @param {string} height Height in pixels or percentage  (for example '400px'
 *                        or '30%')
 */
Graph3d.prototype.setSize = function (width, height) {
  this._setSize(width, height);
  this.redraw();
};

export { Graph3d, Camera as Graph3dCamera, Filter as Graph3dFilter, Point2d as Graph3dPoint2d, Point3d as Graph3dPoint3d, Slider as Graph3dSlider, StepNumber as Graph3dStepNumber };
//# sourceMappingURL=vis-graph3d.mjs.map