vis-network/dist/vis-network.esm.js

A dynamic, browser-based visualization library.

/**
 * vis-network - network
 * http://visjs.org/
 *
 * A dynamic, browser-based visualization library.
 *
 * @version 6.3.1
 * @date    2019-10-29T23:07:20Z
 *
 * @copyright (c) 2011-2017 Almende B.V, http://almende.com
 * @copyright (c) 2018-2019 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.
 */
var commonjsGlobal = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};

function commonjsRequire () {
	throw new Error('Dynamic requires are not currently supported by rollup-plugin-commonjs');
}

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

function createCommonjsModule(fn, module) {
	return module = { exports: {} }, fn(module, module.exports), module.exports;
}

function getCjsExportFromNamespace (n) {
	return n && n['default'] || n;
}

var check = function (it) {
  return it && it.Math == Math && it;
}; // https://github.com/zloirock/core-js/issues/86#issuecomment-115759028


var global_1 = // eslint-disable-next-line no-undef
check(typeof globalThis == 'object' && globalThis) || check(typeof window == 'object' && window) || check(typeof self == 'object' && self) || check(typeof commonjsGlobal == 'object' && commonjsGlobal) || // eslint-disable-next-line no-new-func
Function('return this')();

var fails = function (exec) {
  try {
    return !!exec();
  } catch (error) {
    return true;
  }
};

var descriptors = !fails(function () {
  return Object.defineProperty({}, 'a', {
    get: function () {
      return 7;
    }
  }).a != 7;
});

var nativePropertyIsEnumerable = {}.propertyIsEnumerable;
var getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor; // Nashorn ~ JDK8 bug

var NASHORN_BUG = getOwnPropertyDescriptor && !nativePropertyIsEnumerable.call({
  1: 2
}, 1); // `Object.prototype.propertyIsEnumerable` method implementation
// https://tc39.github.io/ecma262/#sec-object.prototype.propertyisenumerable

var f = NASHORN_BUG ? function propertyIsEnumerable(V) {
  var descriptor = getOwnPropertyDescriptor(this, V);
  return !!descriptor && descriptor.enumerable;
} : nativePropertyIsEnumerable;
var objectPropertyIsEnumerable = {
  f: f
};

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

var toString = {}.toString;

var classofRaw = function (it) {
  return toString.call(it).slice(8, -1);
};

var split = ''.split; // fallback for non-array-like ES3 and non-enumerable old V8 strings

var indexedObject = fails(function () {
  // throws an error in rhino, see https://github.com/mozilla/rhino/issues/346
  // eslint-disable-next-line no-prototype-builtins
  return !Object('z').propertyIsEnumerable(0);
}) ? function (it) {
  return classofRaw(it) == 'String' ? split.call(it, '') : Object(it);
} : Object;

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

var toIndexedObject = function (it) {
  return indexedObject(requireObjectCoercible(it));
};

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

// https://tc39.github.io/ecma262/#sec-toprimitive
// instead of the ES6 spec version, we didn't implement @@toPrimitive case
// and the second argument - flag - preferred type is a string

var toPrimitive = function (input, PREFERRED_STRING) {
  if (!isObject(input)) return input;
  var fn, val;
  if (PREFERRED_STRING && typeof (fn = input.toString) == 'function' && !isObject(val = fn.call(input))) return val;
  if (typeof (fn = input.valueOf) == 'function' && !isObject(val = fn.call(input))) return val;
  if (!PREFERRED_STRING && typeof (fn = input.toString) == 'function' && !isObject(val = fn.call(input))) return val;
  throw TypeError("Can't convert object to primitive value");
};

var hasOwnProperty = {}.hasOwnProperty;

var has = function (it, key) {
  return hasOwnProperty.call(it, key);
};

var document$1 = global_1.document; // typeof document.createElement is 'object' in old IE

var EXISTS = isObject(document$1) && isObject(document$1.createElement);

var documentCreateElement = function (it) {
  return EXISTS ? document$1.createElement(it) : {};
};

var ie8DomDefine = !descriptors && !fails(function () {
  return Object.defineProperty(documentCreateElement('div'), 'a', {
    get: function () {
      return 7;
    }
  }).a != 7;
});

var nativeGetOwnPropertyDescriptor = Object.getOwnPropertyDescriptor; // `Object.getOwnPropertyDescriptor` method
// https://tc39.github.io/ecma262/#sec-object.getownpropertydescriptor

var f$1 = descriptors ? nativeGetOwnPropertyDescriptor : function getOwnPropertyDescriptor(O, P) {
  O = toIndexedObject(O);
  P = toPrimitive(P, true);
  if (ie8DomDefine) try {
    return nativeGetOwnPropertyDescriptor(O, P);
  } catch (error) {
    /* empty */
  }
  if (has(O, P)) return createPropertyDescriptor(!objectPropertyIsEnumerable.f.call(O, P), O[P]);
};
var objectGetOwnPropertyDescriptor = {
  f: f$1
};

var anObject = function (it) {
  if (!isObject(it)) {
    throw TypeError(String(it) + ' is not an object');
  }

  return it;
};

var nativeDefineProperty = Object.defineProperty; // `Object.defineProperty` method
// https://tc39.github.io/ecma262/#sec-object.defineproperty

var f$2 = descriptors ? nativeDefineProperty : function defineProperty(O, P, Attributes) {
  anObject(O);
  P = toPrimitive(P, true);
  anObject(Attributes);
  if (ie8DomDefine) try {
    return nativeDefineProperty(O, P, Attributes);
  } catch (error) {
    /* empty */
  }
  if ('get' in Attributes || 'set' in Attributes) throw TypeError('Accessors not supported');
  if ('value' in Attributes) O[P] = Attributes.value;
  return O;
};
var objectDefineProperty = {
  f: f$2
};

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

var setGlobal = function (key, value) {
  try {
    createNonEnumerableProperty(global_1, key, value);
  } catch (error) {
    global_1[key] = value;
  }

  return value;
};

var SHARED = '__core-js_shared__';
var store = global_1[SHARED] || setGlobal(SHARED, {});
var sharedStore = store;

var shared = createCommonjsModule(function (module) {
  (module.exports = function (key, value) {
    return sharedStore[key] || (sharedStore[key] = value !== undefined ? value : {});
  })('versions', []).push({
    version: '3.3.4',
    mode:  'global',
    copyright: '© 2019 Denis Pushkarev (zloirock.ru)'
  });
});

var functionToString = shared('native-function-to-string', Function.toString);

var WeakMap = global_1.WeakMap;
var nativeWeakMap = typeof WeakMap === 'function' && /native code/.test(functionToString.call(WeakMap));

var id = 0;
var postfix = Math.random();

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

var keys = shared('keys');

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

var hiddenKeys = {};

var WeakMap$1 = global_1.WeakMap;
var set, get, has$1;

var enforce = function (it) {
  return has$1(it) ? get(it) : set(it, {});
};

var getterFor = function (TYPE) {
  return function (it) {
    var state;

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

    return state;
  };
};

if (nativeWeakMap) {
  var store$1 = new WeakMap$1();
  var wmget = store$1.get;
  var wmhas = store$1.has;
  var wmset = store$1.set;

  set = function (it, metadata) {
    wmset.call(store$1, it, metadata);
    return metadata;
  };

  get = function (it) {
    return wmget.call(store$1, it) || {};
  };

  has$1 = function (it) {
    return wmhas.call(store$1, it);
  };
} else {
  var STATE = sharedKey('state');
  hiddenKeys[STATE] = true;

  set = function (it, metadata) {
    createNonEnumerableProperty(it, STATE, metadata);
    return metadata;
  };

  get = function (it) {
    return has(it, STATE) ? it[STATE] : {};
  };

  has$1 = function (it) {
    return has(it, STATE);
  };
}

var internalState = {
  set: set,
  get: get,
  has: has$1,
  enforce: enforce,
  getterFor: getterFor
};

var redefine = createCommonjsModule(function (module) {
  var getInternalState = internalState.get;
  var enforceInternalState = internalState.enforce;
  var TEMPLATE = String(functionToString).split('toString');
  shared('inspectSource', function (it) {
    return functionToString.call(it);
  });
  (module.exports = function (O, key, value, options) {
    var unsafe = options ? !!options.unsafe : false;
    var simple = options ? !!options.enumerable : false;
    var noTargetGet = options ? !!options.noTargetGet : false;

    if (typeof value == 'function') {
      if (typeof key == 'string' && !has(value, 'name')) createNonEnumerableProperty(value, 'name', key);
      enforceInternalState(value).source = TEMPLATE.join(typeof key == 'string' ? key : '');
    }

    if (O === global_1) {
      if (simple) O[key] = value;else setGlobal(key, value);
      return;
    } else if (!unsafe) {
      delete O[key];
    } else if (!noTargetGet && O[key]) {
      simple = true;
    }

    if (simple) O[key] = value;else createNonEnumerableProperty(O, key, value); // add fake Function#toString for correct work wrapped methods / constructors with methods like LoDash isNative
  })(Function.prototype, 'toString', function toString() {
    return typeof this == 'function' && getInternalState(this).source || functionToString.call(this);
  });
});

var path = global_1;

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

var getBuiltIn = function (namespace, method) {
  return arguments.length < 2 ? aFunction(path[namespace]) || aFunction(global_1[namespace]) : path[namespace] && path[namespace][method] || global_1[namespace] && global_1[namespace][method];
};

var ceil = Math.ceil;
var floor = Math.floor; // `ToInteger` abstract operation
// https://tc39.github.io/ecma262/#sec-tointeger

var toInteger = function (argument) {
  return isNaN(argument = +argument) ? 0 : (argument > 0 ? floor : ceil)(argument);
};

var min = Math.min; // `ToLength` abstract operation
// https://tc39.github.io/ecma262/#sec-tolength

var toLength = function (argument) {
  return argument > 0 ? min(toInteger(argument), 0x1FFFFFFFFFFFFF) : 0; // 2 ** 53 - 1 == 9007199254740991
};

var max = Math.max;
var min$1 = 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(length, length).

var toAbsoluteIndex = function (index, length) {
  var integer = toInteger(index);
  return integer < 0 ? max(integer + length, 0) : min$1(integer, length);
};

var createMethod = function (IS_INCLUDES) {
  return function ($this, el, fromIndex) {
    var O = toIndexedObject($this);
    var length = toLength(O.length);
    var index = toAbsoluteIndex(fromIndex, length);
    var value; // Array#includes uses SameValueZero equality algorithm
    // eslint-disable-next-line no-self-compare

    if (IS_INCLUDES && el != el) while (length > index) {
      value = O[index++]; // eslint-disable-next-line no-self-compare

      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;
  };
};

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

var indexOf = arrayIncludes.indexOf;

var objectKeysInternal = function (object, names) {
  var O = toIndexedObject(object);
  var i = 0;
  var result = [];
  var key;

  for (key in O) !has(hiddenKeys, key) && has(O, key) && result.push(key); // Don't enum bug & hidden keys


  while (names.length > i) if (has(O, key = names[i++])) {
    ~indexOf(result, key) || result.push(key);
  }

  return result;
};

// IE8- don't enum bug keys
var enumBugKeys = ['constructor', 'hasOwnProperty', 'isPrototypeOf', 'propertyIsEnumerable', 'toLocaleString', 'toString', 'valueOf'];

var hiddenKeys$1 = enumBugKeys.concat('length', 'prototype'); // `Object.getOwnPropertyNames` method
// https://tc39.github.io/ecma262/#sec-object.getownpropertynames

var f$3 = Object.getOwnPropertyNames || function getOwnPropertyNames(O) {
  return objectKeysInternal(O, hiddenKeys$1);
};

var objectGetOwnPropertyNames = {
  f: f$3
};

var f$4 = Object.getOwnPropertySymbols;
var objectGetOwnPropertySymbols = {
  f: f$4
};

var ownKeys = getBuiltIn('Reflect', 'ownKeys') || function ownKeys(it) {
  var keys = objectGetOwnPropertyNames.f(anObject(it));
  var getOwnPropertySymbols = objectGetOwnPropertySymbols.f;
  return getOwnPropertySymbols ? keys.concat(getOwnPropertySymbols(it)) : keys;
};

var copyConstructorProperties = function (target, source) {
  var keys = ownKeys(source);
  var defineProperty = objectDefineProperty.f;
  var getOwnPropertyDescriptor = objectGetOwnPropertyDescriptor.f;

  for (var i = 0; i < keys.length; i++) {
    var key = keys[i];
    if (!has(target, key)) defineProperty(target, key, getOwnPropertyDescriptor(source, key));
  }
};

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

var isForced = function (feature, detection) {
  var value = data[normalize(feature)];
  return value == POLYFILL ? true : value == NATIVE ? false : typeof detection == 'function' ? 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';
var isForced_1 = isForced;

var getOwnPropertyDescriptor$1 = objectGetOwnPropertyDescriptor.f;
/*
  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.noTargetGet - prevent calling a getter on target
*/

var _export = function (options, source) {
  var TARGET = options.target;
  var GLOBAL = options.global;
  var STATIC = options.stat;
  var FORCED, target, key, targetProperty, sourceProperty, descriptor;

  if (GLOBAL) {
    target = global_1;
  } else if (STATIC) {
    target = global_1[TARGET] || setGlobal(TARGET, {});
  } else {
    target = (global_1[TARGET] || {}).prototype;
  }

  if (target) for (key in source) {
    sourceProperty = source[key];

    if (options.noTargetGet) {
      descriptor = getOwnPropertyDescriptor$1(target, key);
      targetProperty = descriptor && descriptor.value;
    } else targetProperty = target[key];

    FORCED = isForced_1(GLOBAL ? key : TARGET + (STATIC ? '.' : '#') + key, options.forced); // contained in target

    if (!FORCED && targetProperty !== undefined) {
      if (typeof sourceProperty === typeof targetProperty) continue;
      copyConstructorProperties(sourceProperty, targetProperty);
    } // add a flag to not completely full polyfills


    if (options.sham || targetProperty && targetProperty.sham) {
      createNonEnumerableProperty(sourceProperty, 'sham', true);
    } // extend global


    redefine(target, key, sourceProperty, options);
  }
};

var nativeSymbol = !!Object.getOwnPropertySymbols && !fails(function () {
  // Chrome 38 Symbol has incorrect toString conversion
  // eslint-disable-next-line no-undef
  return !String(Symbol());
});

var Symbol$1 = global_1.Symbol;
var store$2 = shared('wks');

var wellKnownSymbol = function (name) {
  return store$2[name] || (store$2[name] = nativeSymbol && Symbol$1[name] || (nativeSymbol ? Symbol$1 : uid)('Symbol.' + name));
};

var TO_STRING_TAG = wellKnownSymbol('toStringTag'); // 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`


var classof = 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' && typeof O.callee == 'function' ? 'Arguments' : result;
};

// https://tc39.github.io/ecma262/#sec-toobject

var toObject = function (argument) {
  return Object(requireObjectCoercible(argument));
};

var correctPrototypeGetter = !fails(function () {
  function F() {
    /* empty */
  }

  F.prototype.constructor = null;
  return Object.getPrototypeOf(new F()) !== F.prototype;
});

var IE_PROTO = sharedKey('IE_PROTO');
var ObjectPrototype = Object.prototype; // `Object.getPrototypeOf` method
// https://tc39.github.io/ecma262/#sec-object.getprototypeof

var objectGetPrototypeOf = correctPrototypeGetter ? Object.getPrototypeOf : function (O) {
  O = toObject(O);
  if (has(O, IE_PROTO)) return O[IE_PROTO];

  if (typeof O.constructor == 'function' && O instanceof O.constructor) {
    return O.constructor.prototype;
  }

  return O instanceof Object ? ObjectPrototype : null;
};

var aPossiblePrototype = function (it) {
  if (!isObject(it) && it !== null) {
    throw TypeError("Can't set " + String(it) + ' as a prototype');
  }

  return it;
};

// https://tc39.github.io/ecma262/#sec-object.setprototypeof
// Works with __proto__ only. Old v8 can't work with null proto objects.

/* eslint-disable no-proto */

var objectSetPrototypeOf = Object.setPrototypeOf || ('__proto__' in {} ? function () {
  var CORRECT_SETTER = false;
  var test = {};
  var setter;

  try {
    setter = Object.getOwnPropertyDescriptor(Object.prototype, '__proto__').set;
    setter.call(test, []);
    CORRECT_SETTER = test instanceof Array;
  } catch (error) {
    /* empty */
  }

  return function setPrototypeOf(O, proto) {
    anObject(O);
    aPossiblePrototype(proto);
    if (CORRECT_SETTER) setter.call(O, proto);else O.__proto__ = proto;
    return O;
  };
}() : undefined);

var defineProperty = objectDefineProperty.f;
var DataView = global_1.DataView;
var DataViewPrototype = DataView && DataView.prototype;
var Int8Array = global_1.Int8Array;
var Int8ArrayPrototype = Int8Array && Int8Array.prototype;
var Uint8ClampedArray = global_1.Uint8ClampedArray;
var Uint8ClampedArrayPrototype = Uint8ClampedArray && Uint8ClampedArray.prototype;
var TypedArray = Int8Array && objectGetPrototypeOf(Int8Array);
var TypedArrayPrototype = Int8ArrayPrototype && objectGetPrototypeOf(Int8ArrayPrototype);
var ObjectPrototype$1 = Object.prototype;
var isPrototypeOf = ObjectPrototype$1.isPrototypeOf;
var TO_STRING_TAG$1 = wellKnownSymbol('toStringTag');
var TYPED_ARRAY_TAG = uid('TYPED_ARRAY_TAG');
var NATIVE_ARRAY_BUFFER = !!(global_1.ArrayBuffer && DataView); // Fixing native typed arrays in Opera Presto crashes the browser, see #595

var NATIVE_ARRAY_BUFFER_VIEWS = NATIVE_ARRAY_BUFFER && !!objectSetPrototypeOf && classof(global_1.opera) !== 'Opera';
var TYPED_ARRAY_TAG_REQIRED = false;
var NAME;
var TypedArrayConstructorsList = {
  Int8Array: 1,
  Uint8Array: 1,
  Uint8ClampedArray: 1,
  Int16Array: 2,
  Uint16Array: 2,
  Int32Array: 4,
  Uint32Array: 4,
  Float32Array: 4,
  Float64Array: 8
};

var isView = function isView(it) {
  var klass = classof(it);
  return klass === 'DataView' || has(TypedArrayConstructorsList, klass);
};

var isTypedArray = function (it) {
  return isObject(it) && has(TypedArrayConstructorsList, classof(it));
};

var aTypedArray = function (it) {
  if (isTypedArray(it)) return it;
  throw TypeError('Target is not a typed array');
};

var aTypedArrayConstructor = function (C) {
  if (objectSetPrototypeOf) {
    if (isPrototypeOf.call(TypedArray, C)) return C;
  } else for (var ARRAY in TypedArrayConstructorsList) if (has(TypedArrayConstructorsList, NAME)) {
    var TypedArrayConstructor = global_1[ARRAY];

    if (TypedArrayConstructor && (C === TypedArrayConstructor || isPrototypeOf.call(TypedArrayConstructor, C))) {
      return C;
    }
  }

  throw TypeError('Target is not a typed array constructor');
};

var exportProto = function (KEY, property, forced) {
  if (!descriptors) return;
  if (forced) for (var ARRAY in TypedArrayConstructorsList) {
    var TypedArrayConstructor = global_1[ARRAY];

    if (TypedArrayConstructor && has(TypedArrayConstructor.prototype, KEY)) {
      delete TypedArrayConstructor.prototype[KEY];
    }
  }

  if (!TypedArrayPrototype[KEY] || forced) {
    redefine(TypedArrayPrototype, KEY, forced ? property : NATIVE_ARRAY_BUFFER_VIEWS && Int8ArrayPrototype[KEY] || property);
  }
};

var exportStatic = function (KEY, property, forced) {
  var ARRAY, TypedArrayConstructor;
  if (!descriptors) return;

  if (objectSetPrototypeOf) {
    if (forced) for (ARRAY in TypedArrayConstructorsList) {
      TypedArrayConstructor = global_1[ARRAY];

      if (TypedArrayConstructor && has(TypedArrayConstructor, KEY)) {
        delete TypedArrayConstructor[KEY];
      }
    }

    if (!TypedArray[KEY] || forced) {
      // V8 ~ Chrome 49-50 `%TypedArray%` methods are non-writable non-configurable
      try {
        return redefine(TypedArray, KEY, forced ? property : NATIVE_ARRAY_BUFFER_VIEWS && Int8Array[KEY] || property);
      } catch (error) {
        /* empty */
      }
    } else return;
  }

  for (ARRAY in TypedArrayConstructorsList) {
    TypedArrayConstructor = global_1[ARRAY];

    if (TypedArrayConstructor && (!TypedArrayConstructor[KEY] || forced)) {
      redefine(TypedArrayConstructor, KEY, property);
    }
  }
};

for (NAME in TypedArrayConstructorsList) {
  if (!global_1[NAME]) NATIVE_ARRAY_BUFFER_VIEWS = false;
} // WebKit bug - typed arrays constructors prototype is Object.prototype


if (!NATIVE_ARRAY_BUFFER_VIEWS || typeof TypedArray != 'function' || TypedArray === Function.prototype) {
  // eslint-disable-next-line no-shadow
  TypedArray = function TypedArray() {
    throw TypeError('Incorrect invocation');
  };

  if (NATIVE_ARRAY_BUFFER_VIEWS) for (NAME in TypedArrayConstructorsList) {
    if (global_1[NAME]) objectSetPrototypeOf(global_1[NAME], TypedArray);
  }
}

if (!NATIVE_ARRAY_BUFFER_VIEWS || !TypedArrayPrototype || TypedArrayPrototype === ObjectPrototype$1) {
  TypedArrayPrototype = TypedArray.prototype;
  if (NATIVE_ARRAY_BUFFER_VIEWS) for (NAME in TypedArrayConstructorsList) {
    if (global_1[NAME]) objectSetPrototypeOf(global_1[NAME].prototype, TypedArrayPrototype);
  }
} // WebKit bug - one more object in Uint8ClampedArray prototype chain


if (NATIVE_ARRAY_BUFFER_VIEWS && objectGetPrototypeOf(Uint8ClampedArrayPrototype) !== TypedArrayPrototype) {
  objectSetPrototypeOf(Uint8ClampedArrayPrototype, TypedArrayPrototype);
}

if (descriptors && !has(TypedArrayPrototype, TO_STRING_TAG$1)) {
  TYPED_ARRAY_TAG_REQIRED = true;
  defineProperty(TypedArrayPrototype, TO_STRING_TAG$1, {
    get: function () {
      return isObject(this) ? this[TYPED_ARRAY_TAG] : undefined;
    }
  });

  for (NAME in TypedArrayConstructorsList) if (global_1[NAME]) {
    createNonEnumerableProperty(global_1[NAME], TYPED_ARRAY_TAG, NAME);
  }
} // WebKit bug - the same parent prototype for typed arrays and data view


if (NATIVE_ARRAY_BUFFER && objectSetPrototypeOf && objectGetPrototypeOf(DataViewPrototype) !== ObjectPrototype$1) {
  objectSetPrototypeOf(DataViewPrototype, ObjectPrototype$1);
}

var arrayBufferViewCore = {
  NATIVE_ARRAY_BUFFER: NATIVE_ARRAY_BUFFER,
  NATIVE_ARRAY_BUFFER_VIEWS: NATIVE_ARRAY_BUFFER_VIEWS,
  TYPED_ARRAY_TAG: TYPED_ARRAY_TAG_REQIRED && TYPED_ARRAY_TAG,
  aTypedArray: aTypedArray,
  aTypedArrayConstructor: aTypedArrayConstructor,
  exportProto: exportProto,
  exportStatic: exportStatic,
  isView: isView,
  isTypedArray: isTypedArray,
  TypedArray: TypedArray,
  TypedArrayPrototype: TypedArrayPrototype
};

var redefineAll = function (target, src, options) {
  for (var key in src) redefine(target, key, src[key], options);

  return target;
};

var anInstance = function (it, Constructor, name) {
  if (!(it instanceof Constructor)) {
    throw TypeError('Incorrect ' + (name ? name + ' ' : '') + 'invocation');
  }

  return it;
};

// https://tc39.github.io/ecma262/#sec-toindex

var toIndex = function (it) {
  if (it === undefined) return 0;
  var number = toInteger(it);
  var length = toLength(number);
  if (number !== length) throw RangeError('Wrong length or index');
  return length;
};

// https://tc39.github.io/ecma262/#sec-array.prototype.fill


var arrayFill = function fill(value
/* , start = 0, end = @length */
) {
  var O = toObject(this);
  var length = toLength(O.length);
  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;
};

var defineProperty$1 = objectDefineProperty.f;
var TO_STRING_TAG$2 = wellKnownSymbol('toStringTag');

var setToStringTag = function (it, TAG, STATIC) {
  if (it && !has(it = STATIC ? it : it.prototype, TO_STRING_TAG$2)) {
    defineProperty$1(it, TO_STRING_TAG$2, {
      configurable: true,
      value: TAG
    });
  }
};

var NATIVE_ARRAY_BUFFER$1 = arrayBufferViewCore.NATIVE_ARRAY_BUFFER;
var getOwnPropertyNames = objectGetOwnPropertyNames.f;
var defineProperty$2 = objectDefineProperty.f;
var getInternalState = internalState.get;
var setInternalState = internalState.set;
var ARRAY_BUFFER = 'ArrayBuffer';
var DATA_VIEW = 'DataView';
var PROTOTYPE = 'prototype';
var WRONG_LENGTH = 'Wrong length';
var WRONG_INDEX = 'Wrong index';
var NativeArrayBuffer = global_1[ARRAY_BUFFER];
var $ArrayBuffer = NativeArrayBuffer;
var $DataView = global_1[DATA_VIEW];
var Math$1 = global_1.Math;
var RangeError$1 = global_1.RangeError; // eslint-disable-next-line no-shadow-restricted-names

var Infinity$1 = 1 / 0;
var abs = Math$1.abs;
var pow = Math$1.pow;
var floor$1 = Math$1.floor;
var log = Math$1.log;
var LN2 = Math$1.LN2; // IEEE754 conversions based on https://github.com/feross/ieee754

var packIEEE754 = function (number, mantissaLength, bytes) {
  var buffer = new Array(bytes);
  var exponentLength = bytes * 8 - mantissaLength - 1;
  var eMax = (1 << exponentLength) - 1;
  var eBias = eMax >> 1;
  var rt = mantissaLength === 23 ? pow(2, -24) - pow(2, -77) : 0;
  var sign = number < 0 || number === 0 && 1 / number < 0 ? 1 : 0;
  var index = 0;
  var exponent, mantissa, c;
  number = abs(number); // eslint-disable-next-line no-self-compare

  if (number != number || number === Infinity$1) {
    // eslint-disable-next-line no-self-compare
    mantissa = number != number ? 1 : 0;
    exponent = eMax;
  } else {
    exponent = floor$1(log(number) / LN2);

    if (number * (c = pow(2, -exponent)) < 1) {
      exponent--;
      c *= 2;
    }

    if (exponent + eBias >= 1) {
      number += rt / c;
    } else {
      number += rt * pow(2, 1 - eBias);
    }

    if (number * c >= 2) {
      exponent++;
      c /= 2;
    }

    if (exponent + eBias >= eMax) {
      mantissa = 0;
      exponent = eMax;
    } else if (exponent + eBias >= 1) {
      mantissa = (number * c - 1) * pow(2, mantissaLength);
      exponent = exponent + eBias;
    } else {
      mantissa = number * pow(2, eBias - 1) * pow(2, mantissaLength);
      exponent = 0;
    }
  }

  for (; mantissaLength >= 8; buffer[index++] = mantissa & 255, mantissa /= 256, mantissaLength -= 8);

  exponent = exponent << mantissaLength | mantissa;
  exponentLength += mantissaLength;

  for (; exponentLength > 0; buffer[index++] = exponent & 255, exponent /= 256, exponentLength -= 8);

  buffer[--index] |= sign * 128;
  return buffer;
};

var unpackIEEE754 = function (buffer, mantissaLength) {
  var bytes = buffer.length;
  var exponentLength = bytes * 8 - mantissaLength - 1;
  var eMax = (1 << exponentLength) - 1;
  var eBias = eMax >> 1;
  var nBits = exponentLength - 7;
  var index = bytes - 1;
  var sign = buffer[index--];
  var exponent = sign & 127;
  var mantissa;
  sign >>= 7;

  for (; nBits > 0; exponent = exponent * 256 + buffer[index], index--, nBits -= 8);

  mantissa = exponent & (1 << -nBits) - 1;
  exponent >>= -nBits;
  nBits += mantissaLength;

  for (; nBits > 0; mantissa = mantissa * 256 + buffer[index], index--, nBits -= 8);

  if (exponent === 0) {
    exponent = 1 - eBias;
  } else if (exponent === eMax) {
    return mantissa ? NaN : sign ? -Infinity$1 : Infinity$1;
  } else {
    mantissa = mantissa + pow(2, mantissaLength);
    exponent = exponent - eBias;
  }

  return (sign ? -1 : 1) * mantissa * pow(2, exponent - mantissaLength);
};

var unpackInt32 = function (buffer) {
  return buffer[3] << 24 | buffer[2] << 16 | buffer[1] << 8 | buffer[0];
};

var packInt8 = function (number) {
  return [number & 0xFF];
};

var packInt16 = function (number) {
  return [number & 0xFF, number >> 8 & 0xFF];
};

var packInt32 = function (number) {
  return [number & 0xFF, number >> 8 & 0xFF, number >> 16 & 0xFF, number >> 24 & 0xFF];
};

var packFloat32 = function (number) {
  return packIEEE754(number, 23, 4);
};

var packFloat64 = function (number) {
  return packIEEE754(number, 52, 8);
};

var addGetter = function (Constructor, key) {
  defineProperty$2(Constructor[PROTOTYPE], key, {
    get: function () {
      return getInternalState(this)[key];
    }
  });
};

var get$1 = function (view, count, index, isLittleEndian) {
  var numIndex = +index;
  var intIndex = toIndex(numIndex);
  var store = getInternalState(view);
  if (intIndex + count > store.byteLength) throw RangeError$1(WRONG_INDEX);
  var bytes = getInternalState(store.buffer).bytes;
  var start = intIndex + store.byteOffset;
  var pack = bytes.slice(start, start + count);
  return isLittleEndian ? pack : pack.reverse();
};

var set$1 = function (view, count, index, conversion, value, isLittleEndian) {
  var numIndex = +index;
  var intIndex = toIndex(numIndex);
  var store = getInternalState(view);
  if (intIndex + count > store.byteLength) throw RangeError$1(WRONG_INDEX);
  var bytes = getInternalState(store.buffer).bytes;
  var start = intIndex + store.byteOffset;
  var pack = conversion(+value);

  for (var i = 0; i < count; i++) bytes[start + i] = pack[isLittleEndian ? i : count - i - 1];
};

if (!NATIVE_ARRAY_BUFFER$1) {
  $ArrayBuffer = function ArrayBuffer(length) {
    anInstance(this, $ArrayBuffer, ARRAY_BUFFER);
    var byteLength = toIndex(length);
    setInternalState(this, {
      bytes: arrayFill.call(new Array(byteLength), 0),
      byteLength: byteLength
    });
    if (!descriptors) this.byteLength = byteLength;
  };

  $DataView = function DataView(buffer, byteOffset, byteLength) {
    anInstance(this, $DataView, DATA_VIEW);
    anInstance(buffer, $ArrayBuffer, DATA_VIEW);
    var bufferLength = getInternalState(buffer).byteLength;
    var offset = toInteger(byteOffset);
    if (offset < 0 || offset > bufferLength) throw RangeError$1('Wrong offset');
    byteLength = byteLength === undefined ? bufferLength - offset : toLength(byteLength);
    if (offset + byteLength > bufferLength) throw RangeError$1(WRONG_LENGTH);
    setInternalState(this, {
      buffer: buffer,
      byteLength: byteLength,
      byteOffset: offset
    });

    if (!descriptors) {
      this.buffer = buffer;
      this.byteLength = byteLength;
      this.byteOffset = offset;
    }
  };

  if (descriptors) {
    addGetter($ArrayBuffer, 'byteLength');
    addGetter($DataView, 'buffer');
    addGetter($DataView, 'byteLength');
    addGetter($DataView, 'byteOffset');
  }

  redefineAll($DataView[PROTOTYPE], {
    getInt8: function getInt8(byteOffset) {
      return get$1(this, 1, byteOffset)[0] << 24 >> 24;
    },
    getUint8: function getUint8(byteOffset) {
      return get$1(this, 1, byteOffset)[0];
    },
    getInt16: function getInt16(byteOffset
    /* , littleEndian */
    ) {
      var bytes = get$1(this, 2, byteOffset, arguments.length > 1 ? arguments[1] : undefined);
      return (bytes[1] << 8 | bytes[0]) << 16 >> 16;
    },
    getUint16: function getUint16(byteOffset
    /* , littleEndian */
    ) {
      var bytes = get$1(this, 2, byteOffset, arguments.length > 1 ? arguments[1] : undefined);
      return bytes[1] << 8 | bytes[0];
    },
    getInt32: function getInt32(byteOffset
    /* , littleEndian */
    ) {
      return unpackInt32(get$1(this, 4, byteOffset, arguments.length > 1 ? arguments[1] : undefined));
    },
    getUint32: function getUint32(byteOffset
    /* , littleEndian */
    ) {
      return unpackInt32(get$1(this, 4, byteOffset, arguments.length > 1 ? arguments[1] : undefined)) >>> 0;
    },
    getFloat32: function getFloat32(byteOffset
    /* , littleEndian */
    ) {
      return unpackIEEE754(get$1(this, 4, byteOffset, arguments.length > 1 ? arguments[1] : undefined), 23);
    },
    getFloat64: function getFloat64(byteOffset
    /* , littleEndian */
    ) {
      return unpackIEEE754(get$1(this, 8, byteOffset, arguments.length > 1 ? arguments[1] : undefined), 52);
    },
    setInt8: function setInt8(byteOffset, value) {
      set$1(this, 1, byteOffset, packInt8, value);
    },
    setUint8: function setUint8(byteOffset, value) {
      set$1(this, 1, byteOffset, packInt8, value);
    },
    setInt16: function setInt16(byteOffset, value
    /* , littleEndian */
    ) {
      set$1(this, 2, byteOffset, packInt16, value, arguments.length > 2 ? arguments[2] : undefined);
    },
    setUint16: function setUint16(byteOffset, value
    /* , littleEndian */
    ) {
      set$1(this, 2, byteOffset, packInt16, value, arguments.length > 2 ? arguments[2] : undefined);
    },
    setInt32: function setInt32(byteOffset, value
    /* , littleEndian */
    ) {
      set$1(this, 4, byteOffset, packInt32, value, arguments.length > 2 ? arguments[2] : undefined);
    },
    setUint32: function setUint32(byteOffset, value
    /* , littleEndian */
    ) {
      set$1(this, 4, byteOffset, packInt32, value, arguments.length > 2 ? arguments[2] : undefined);
    },
    setFloat32: function setFloat32(byteOffset, value
    /* , littleEndian */
    ) {
      set$1(this, 4, byteOffset, packFloat32, value, arguments.length > 2 ? arguments[2] : undefined);
    },
    setFloat64: function setFloat64(byteOffset, value
    /* , littleEndian */
    ) {
      set$1(this, 8, byteOffset, packFloat64, value, arguments.length > 2 ? arguments[2] : undefined);
    }
  });
} else {
  if (!fails(function () {
    NativeArrayBuffer(1);
  }) || !fails(function () {
    new NativeArrayBuffer(-1); // eslint-disable-line no-new
  }) || fails(function () {
    new NativeArrayBuffer(); // eslint-disable-line no-new

    new NativeArrayBuffer(1.5); // eslint-disable-line no-new

    new NativeArrayBuffer(NaN); // eslint-disable-line no-new

    return NativeArrayBuffer.name != ARRAY_BUFFER;
  })) {
    $ArrayBuffer = function ArrayBuffer(length) {
      anInstance(this, $ArrayBuffer);
      return new NativeArrayBuffer(toIndex(length));
    };

    var ArrayBufferPrototype = $ArrayBuffer[PROTOTYPE] = NativeArrayBuffer[PROTOTYPE];

    for (var keys$1 = getOwnPropertyNames(NativeArrayBuffer), j = 0, key; keys$1.length > j;) {
      if (!((key = keys$1[j++]) in $ArrayBuffer)) {
        createNonEnumerableProperty($ArrayBuffer, key, NativeArrayBuffer[key]);
      }
    }

    ArrayBufferPrototype.constructor = $ArrayBuffer;
  } // iOS Safari 7.x bug


  var testView = new $DataView(new $ArrayBuffer(2));
  var nativeSetInt8 = $DataView[PROTOTYPE].setInt8;
  testView.setInt8(0, 2147483648);
  testView.setInt8(1, 2147483649);
  if (testView.getInt8(0) || !testView.getInt8(1)) redefineAll($DataView[PROTOTYPE], {
    setInt8: function setInt8(byteOffset, value) {
      nativeSetInt8.call(this, byteOffset, value << 24 >> 24);
    },
    setUint8: function setUint8(byteOffset, value) {
      nativeSetInt8.call(this, byteOffset, value << 24 >> 24);
    }
  }, {
    unsafe: true
  });
}

setToStringTag($ArrayBuffer, ARRAY_BUFFER);
setToStringTag($DataView, DATA_VIEW);
var arrayBuffer = {
  ArrayBuffer: $ArrayBuffer,
  DataView: $DataView
};

var aFunction$1 = function (it) {
  if (typeof it != 'function') {
    throw TypeError(String(it) + ' is not a function');
  }

  return it;
};

var SPECIES = wellKnownSymbol('species'); // `SpeciesConstructor` abstract operation
// https://tc39.github.io/ecma262/#sec-speciesconstructor

var speciesConstructor = function (O, defaultConstructor) {
  var C = anObject(O).constructor;
  var S;
  return C === undefined || (S = anObject(C)[SPECIES]) == undefined ? defaultConstructor : aFunction$1(S);
};

var ArrayBuffer = arrayBuffer.ArrayBuffer;
var DataView$1 = arrayBuffer.DataView;
var nativeArrayBufferSlice = ArrayBuffer.prototype.slice;
var INCORRECT_SLICE = fails(function () {
  return !new ArrayBuffer(2).slice(1, undefined).byteLength;
}); // `ArrayBuffer.prototype.slice` method
// https://tc39.github.io/ecma262/#sec-arraybuffer.prototype.slice

_export({
  target: 'ArrayBuffer',
  proto: true,
  unsafe: true,
  forced: INCORRECT_SLICE
}, {
  slice: function slice(start, end) {
    if (nativeArrayBufferSlice !== undefined && end === undefined) {
      return nativeArrayBufferSlice.call(anObject(this), start); // FF fix
    }

    var length = anObject(this).byteLength;
    var first = toAbsoluteIndex(start, length);
    var fin = toAbsoluteIndex(end === undefined ? length : end, length);
    var result = new (speciesConstructor(this, ArrayBuffer))(toLength(fin - first));
    var viewSource = new DataView$1(this);
    var viewTarget = new DataView$1(result);
    var index = 0;

    while (first < fin) {
      viewTarget.setUint8(index++, viewSource.getUint8(first++));
    }

    return result;
  }
});

var NATIVE_ARRAY_BUFFER$2 = arrayBufferViewCore.NATIVE_ARRAY_BUFFER; // `DataView` constructor
// https://tc39.github.io/ecma262/#sec-dataview-constructor

_export({
  global: true,
  forced: !NATIVE_ARRAY_BUFFER$2
}, {
  DataView: arrayBuffer.DataView
});

var TO_STRING_TAG$3 = wellKnownSymbol('toStringTag');
var test = {};
test[TO_STRING_TAG$3] = 'z'; // `Object.prototype.toString` method implementation
// https://tc39.github.io/ecma262/#sec-object.prototype.tostring

var objectToString = String(test) !== '[object z]' ? function toString() {
  return '[object ' + classof(this) + ']';
} : test.toString;

var ObjectPrototype$2 = Object.prototype; // `Object.prototype.toString` method
// https://tc39.github.io/ecma262/#sec-object.prototype.tostring

if (objectToString !== ObjectPrototype$2.toString) {
  redefine(ObjectPrototype$2, 'toString', objectToString, {
    unsafe: true
  });
}

/*
 * Canvas shapes used by Network
 */

if (typeof CanvasRenderingContext2D !== "undefined") {
  CanvasRenderingContext2D.prototype.circle = function (x, y, r) {
    this.beginPath();
    this.arc(x, y, r, 0, 2 * Math.PI, false);
    this.closePath();
  };

  CanvasRenderingContext2D.prototype.square = function (x, y, r) {
    this.beginPath();
    this.rect(x - r, y - r, r * 2, r * 2);
    this.closePath();
  };

  CanvasRenderingContext2D.prototype.triangle = function (x, y, r) {
    this.beginPath(); // the change in radius and the offset is here to center the shape

    r *= 1.15;
    y += 0.275 * r;
    var s = r * 2;
    var s2 = s / 2;
    var ir = Math.sqrt(3) / 6 * s; // radius of inner circle

    var h = Math.sqrt(s * s - s2 * s2); // height

    this.moveTo(x, y - (h - ir));
    this.lineTo(x + s2, y + ir);
    this.lineTo(x - s2, y + ir);
    this.lineTo(x, y - (h - ir));
    this.closePath();
  };

  CanvasRenderingContext2D.prototype.triangleDown = function (x, y, r) {
    this.beginPath(); // the change in radius and the offset is here to center the shape

    r *= 1.15;
    y -= 0.275 * r;
    var s = r * 2;
    var s2 = s / 2;
    var ir = Math.sqrt(3) / 6 * s; // radius of inner circle

    var h = Math.sqrt(s * s - s2 * s2); // height

    this.moveTo(x, y + (h - ir));
    this.lineTo(x + s2, y - ir);
    this.lineTo(x - s2, y - ir);
    this.lineTo(x, y + (h - ir));
    this.closePath();
  };

  CanvasRenderingContext2D.prototype.star = function (x, y, r) {
    // http://www.html5canvastutorials.com/labs/html5-canvas-star-spinner/
    this.beginPath(); // the change in radius and the offset is here to center the shape

    r *= 0.82;
    y += 0.1 * r;

    for (var n = 0; n < 10; n++) {
      var radius = n % 2 === 0 ? r * 1.3 : r * 0.5;
      this.lineTo(x + radius * Math.sin(n * 2 * Math.PI / 10), y - radius * Math.cos(n * 2 * Math.PI / 10));
    }

    this.closePath();
  };

  CanvasRenderingContext2D.prototype.diamond = function (x, y, r) {
    this.beginPath();
    this.lineTo(x, y + r);
    this.lineTo(x + r, y);
    this.lineTo(x, y - r);
    this.lineTo(x - r, y);
    this.closePath();
  };

  CanvasRenderingContext2D.prototype.roundRect = function (x, y, w, h, r) {
    var r2d = Math.PI / 180;

    if (w - 2 * r < 0) {
      r = w / 2;
    } //ensure that the radius isn't too large for x


    if (h - 2 * r < 0) {
      r = h / 2;
    } //ensure that the radius isn't too large for y


    this.beginPath();
    this.moveTo(x + r, y);
    this.lineTo(x + w - r, y);
    this.arc(x + w - r, y + r, r, r2d * 270, r2d * 360, false);
    this.lineTo(x + w, y + h - r);
    this.arc(x + w - r, y + h - r, r, 0, r2d * 90, false);
    this.lineTo(x + r, y + h);
    this.arc(x + r, y + h - r, r, r2d * 90, r2d * 180, false);
    this.lineTo(x, y + r);
    this.arc(x + r, y + r, r, r2d * 180, r2d * 270, false);
    this.closePath();
  };

  CanvasRenderingContext2D.prototype.ellipse_vis = function (x, y, w, h) {
    var kappa = 0.5522848,
        ox = w / 2 * kappa,
        // control point offset horizontal
    oy = h / 2 * kappa,
        // control point offset vertical
    xe = x + w,
        // x-end
    ye = y + h,
        // y-end
    xm = x + w / 2,
        // x-middle
    ym = y + h / 2; // y-middle

    this.beginPath();
    this.moveTo(x, ym);
    this.bezierCurveTo(x, ym - oy, xm - ox, y, xm, y);
    this.bezierCurveTo(xm + ox, y, xe, ym - oy, xe, ym);
    this.bezierCurveTo(xe, ym + oy, xm + ox, ye, xm, ye);
    this.bezierCurveTo(xm - ox, ye, x, ym + oy, x, ym);
    this.closePath();
  };

  CanvasRenderingContext2D.prototype.database = function (x, y, w, h) {
    var f = 1 / 3;
    var wEllipse = w;
    var hEllipse = h * f;
    var kappa = 0.5522848,
        ox = wEllipse / 2 * kappa,
        // control point offset horizontal
    oy = hEllipse / 2 * kappa,
        // control point offset vertical
    xe = x + wEllipse,
        // x-end
    ye = y + hEllipse,
        // y-end
    xm = x + wEllipse / 2,
        // x-middle
    ym = y + hEllipse / 2,
        // y-middle
    ymb = y + (h - hEllipse / 2),
        // y-midlle, bottom ellipse
    yeb = y + h; // y-end, bottom ellipse

    this.beginPath();
    this.moveTo(xe, ym);
    this.bezierCurveTo(xe, ym + oy, xm + ox, ye, xm, ye);
    this.bezierCurveTo(xm - ox, ye, x, ym + oy, x, ym);
    this.bezierCurveTo(x, ym - oy, xm - ox, y, xm, y);
    this.bezierCurveTo(xm + ox, y, xe, ym - oy, xe, ym);
    this.lineTo(xe, ymb);
    this.bezierCurveTo(xe, ymb + oy, xm + ox, yeb, xm, yeb);
    this.bezierCurveTo(xm - ox, yeb, x, ymb + oy, x, ymb);
    this.lineTo(x, ym);
  };

  CanvasRenderingContext2D.prototype.dashedLine = function (x, y, x2, y2, pattern) {
    this.beginPath();
    this.moveTo(x, y);
    var patternLength = pattern.length;
    var dx = x2 - x;
    var dy = y2 - y;
    var slope = dy / dx;
    var distRemaining = Math.sqrt(dx * dx + dy * dy);
    var patternIndex = 0;
    var draw = true;
    var xStep = 0;
    var dashLength = +pattern[0];

    while (distRemaining >= 0.1) {
      dashLength = +pattern[patternIndex++ % patternLength];

      if (dashLength > distRemaining) {
        dashLength = distRemaining;
      }

      xStep = Math.sqrt(dashLength * dashLength / (1 + slope * slope));
      xStep = dx < 0 ? -xStep : xStep;
      x += xStep;
      y += slope * xStep;

      if (draw === true) {
        this.lineTo(x, y);
      } else {
        this.moveTo(x, y);
      }

      distRemaining -= dashLength;
      draw = !draw;
    }
  };

  CanvasRenderingContext2D.prototype.hexagon = function (x, y, r) {
    this.beginPath();
    var sides = 6;
    var a = Math.PI * 2 / sides;
    this.moveTo(x + r, y);

    for (var i = 1; i < sides; i++) {
      this.lineTo(x + r * Math.cos(a * i), y + r * Math.sin(a * i));
    }

    this.closePath();
  };
}

var componentEmitter = createCommonjsModule(function (module) {
  /**
   * Expose `Emitter`.
   */
  {
    module.exports = Emitter;
  }
  /**
   * Initialize a new `Emitter`.
   *
   * @api public
   */


  function Emitter(obj) {
    if (obj) return mixin(obj);
  }
  /**
   * Mixin the emitter properties.
   *
   * @param {Object} obj
   * @return {Object}
   * @api private
   */

  function mixin(obj) {
    for (var key in Emitter.prototype) {
      obj[key] = Emitter.prototype[key];
    }

    return obj;
  }
  /**
   * Listen on the given `event` with `fn`.
   *
   * @param {String} event
   * @param {Function} fn
   * @return {Emitter}
   * @api public
   */


  Emitter.prototype.on = Emitter.prototype.addEventListener = function (event, fn) {
    this._callbacks = this._callbacks || {};
    (this._callbacks['$' + event] = this._callbacks['$' + event] || []).push(fn);
    return this;
  };
  /**
   * Adds an `event` listener that will be invoked a single
   * time then automatically removed.
   *
   * @param {String} event
   * @param {Function} fn
   * @return {Emitter}
   * @api public
   */


  Emitter.prototype.once = function (event, fn) {
    function on() {
      this.off(event, on);
      fn.apply(this, arguments);
    }

    on.fn = fn;
    this.on(event, on);
    return this;
  };
  /**
   * Remove the given callback for `event` or all
   * registered callbacks.
   *
   * @param {String} event
   * @param {Function} fn
   * @return {Emitter}
   * @api public
   */


  Emitter.prototype.off = Emitter.prototype.removeListener = Emitter.prototype.removeAllListeners = Emitter.prototype.removeEventListener = function (event, fn) {
    this._callbacks = this._callbacks || {}; // all

    if (0 == arguments.length) {
      this._callbacks = {};
      return this;
    } // specific event


    var callbacks = this._callbacks['$' + event];
    if (!callbacks) return this; // remove all handlers

    if (1 == arguments.length) {
      delete this._callbacks['$' + event];
      return this;
    } // remove specific handler


    var cb;

    for (var i = 0; i < callbacks.length; i++) {
      cb = callbacks[i];

      if (cb === fn || cb.fn === fn) {
        callbacks.splice(i, 1);
        break;
      }
    } // Remove event specific arrays for event types that no
    // one is subscribed for to avoid memory leak.


    if (callbacks.length === 0) {
      delete this._callbacks['$' + event];
    }

    return this;
  };
  /**
   * Emit `event` with the given args.
   *
   * @param {String} event
   * @param {Mixed} ...
   * @return {Emitter}
   */


  Emitter.prototype.emit = function (event) {
    this._callbacks = this._callbacks || {};
    var args = new Array(arguments.length - 1),
        callbacks = this._callbacks['$' + event];

    for (var i = 1; i < arguments.length; i++) {
      args[i - 1] = arguments[i];
    }

    if (callbacks) {
      callbacks = callbacks.slice(0);

      for (var i = 0, len = callbacks.length; i < len; ++i) {
        callbacks[i].apply(this, args);
      }
    }

    return this;
  };
  /**
   * Return array of callbacks for `event`.
   *
   * @param {String} event
   * @return {Array}
   * @api public
   */


  Emitter.prototype.listeners = function (event) {
    this._callbacks = this._callbacks || {};
    return this._callbacks['$' + event] || [];
  };
  /**
   * Check if this emitter has `event` handlers.
   *
   * @param {String} event
   * @return {Boolean}
   * @api public
   */


  Emitter.prototype.hasListeners = function (event) {
    return !!this.listeners(event).length;
  };
});

var commonjsGlobal$1 = typeof globalThis !== 'undefined' ? globalThis : ty