component-map-web/dist/map-tool.umd.js

web端电子地图组件-基于leaflet实现的2D地图效果

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You can also specify functions instead of strings for\r\n  // data values — they will be evaluated passing `data` as an argument.\r\n  function template(str, data) {\r\n  \treturn str.replace(templateRe, function (str, key) {\r\n  \t\tvar value = data[key];\r\n\r\n  \t\tif (value === undefined) {\r\n  \t\t\tthrow new Error('No value provided for variable ' + str);\r\n\r\n  \t\t} else if (typeof value === 'function') {\r\n  \t\t\tvalue = value(data);\r\n  \t\t}\r\n  \t\treturn value;\r\n  \t});\r\n  }\r\n\r\n  // @function isArray(obj): Boolean\r\n  // Compatibility polyfill for [Array.isArray](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array/isArray)\r\n  var isArray = Array.isArray || function (obj) {\r\n  \treturn (Object.prototype.toString.call(obj) === '[object Array]');\r\n  };\r\n\r\n  // @function indexOf(array: Array, el: Object): Number\r\n  // Compatibility polyfill for [Array.prototype.indexOf](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array/indexOf)\r\n  function indexOf(array, el) {\r\n  \tfor (var i = 0; i < array.length; i++) {\r\n  \t\tif (array[i] === el) { return i; }\r\n  \t}\r\n  \treturn -1;\r\n  }\r\n\r\n  // @property emptyImageUrl: String\r\n  // Data URI string containing a base64-encoded empty GIF image.\r\n  // Used as a hack to free memory from unused images on WebKit-powered\r\n  // mobile devices (by setting image `src` to this string).\r\n  var emptyImageUrl = 'data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=';\r\n\r\n  // inspired by https://paulirish.com/2011/requestanimationframe-for-smart-animating/\r\n\r\n  function getPrefixed(name) {\r\n  \treturn window['webkit' + name] || window['moz' + name] || window['ms' + name];\r\n  }\r\n\r\n  var lastTime = 0;\r\n\r\n  // fallback for IE 7-8\r\n  function timeoutDefer(fn) {\r\n  \tvar time = +new Date(),\r\n  \t    timeToCall = Math.max(0, 16 - (time - lastTime));\r\n\r\n  \tlastTime = time + timeToCall;\r\n  \treturn window.setTimeout(fn, timeToCall);\r\n  }\r\n\r\n  var requestFn = window.requestAnimationFrame || getPrefixed('RequestAnimationFrame') || timeoutDefer;\r\n  var cancelFn = window.cancelAnimationFrame || getPrefixed('CancelAnimationFrame') ||\r\n  \t\tgetPrefixed('CancelRequestAnimationFrame') || function (id) { window.clearTimeout(id); };\r\n\r\n  // @function requestAnimFrame(fn: Function, context?: Object, immediate?: Boolean): Number\r\n  // Schedules `fn` to be executed when the browser repaints. `fn` is bound to\r\n  // `context` if given. When `immediate` is set, `fn` is called immediately if\r\n  // the browser doesn't have native support for\r\n  // [`window.requestAnimationFrame`](https://developer.mozilla.org/docs/Web/API/window/requestAnimationFrame),\r\n  // otherwise it's delayed. Returns a request ID that can be used to cancel the request.\r\n  function requestAnimFrame(fn, context, immediate) {\r\n  \tif (immediate && requestFn === timeoutDefer) {\r\n  \t\tfn.call(context);\r\n  \t} else {\r\n  \t\treturn requestFn.call(window, bind(fn, context));\r\n  \t}\r\n  }\r\n\r\n  // @function cancelAnimFrame(id: Number): undefined\r\n  // Cancels a previous `requestAnimFrame`. See also [window.cancelAnimationFrame](https://developer.mozilla.org/docs/Web/API/window/cancelAnimationFrame).\r\n  function cancelAnimFrame(id) {\r\n  \tif (id) {\r\n  \t\tcancelFn.call(window, id);\r\n  \t}\r\n  }\n\n  var Util = {\n    __proto__: null,\n    extend: extend,\n    create: create$2,\n    bind: bind,\n    get lastId () { return lastId; },\n    stamp: stamp,\n    throttle: throttle,\n    wrapNum: wrapNum,\n    falseFn: falseFn,\n    formatNum: formatNum,\n    trim: trim,\n    splitWords: splitWords,\n    setOptions: setOptions,\n    getParamString: getParamString,\n    template: template,\n    isArray: isArray,\n    indexOf: indexOf,\n    emptyImageUrl: emptyImageUrl,\n    requestFn: requestFn,\n    cancelFn: cancelFn,\n    requestAnimFrame: requestAnimFrame,\n    cancelAnimFrame: cancelAnimFrame\n  };\n\n  // @class Class\r\n  // @aka L.Class\r\n\r\n  // @section\r\n  // @uninheritable\r\n\r\n  // Thanks to John Resig and Dean Edwards for inspiration!\r\n\r\n  function Class() {}\r\n\r\n  Class.extend = function (props) {\r\n\r\n  \t// @function extend(props: Object): Function\r\n  \t// [Extends the current class](#class-inheritance) given the properties to be included.\r\n  \t// Returns a Javascript function that is a class constructor (to be called with `new`).\r\n  \tvar NewClass = function () {\r\n\r\n  \t\tsetOptions(this);\r\n\r\n  \t\t// call the constructor\r\n  \t\tif (this.initialize) {\r\n  \t\t\tthis.initialize.apply(this, arguments);\r\n  \t\t}\r\n\r\n  \t\t// call all constructor hooks\r\n  \t\tthis.callInitHooks();\r\n  \t};\r\n\r\n  \tvar parentProto = NewClass.__super__ = this.prototype;\r\n\r\n  \tvar proto = create$2(parentProto);\r\n  \tproto.constructor = NewClass;\r\n\r\n  \tNewClass.prototype = proto;\r\n\r\n  \t// inherit parent's statics\r\n  \tfor (var i in this) {\r\n  \t\tif (Object.prototype.hasOwnProperty.call(this, i) && i !== 'prototype' && i !== '__super__') {\r\n  \t\t\tNewClass[i] = this[i];\r\n  \t\t}\r\n  \t}\r\n\r\n  \t// mix static properties into the class\r\n  \tif (props.statics) {\r\n  \t\textend(NewClass, props.statics);\r\n  \t}\r\n\r\n  \t// mix includes into the prototype\r\n  \tif (props.includes) {\r\n  \t\tcheckDeprecatedMixinEvents(props.includes);\r\n  \t\textend.apply(null, [proto].concat(props.includes));\r\n  \t}\r\n\r\n  \t// mix given properties into the prototype\r\n  \textend(proto, props);\r\n  \tdelete proto.statics;\r\n  \tdelete proto.includes;\r\n\r\n  \t// merge options\r\n  \tif (proto.options) {\r\n  \t\tproto.options = parentProto.options ? create$2(parentProto.options) : {};\r\n  \t\textend(proto.options, props.options);\r\n  \t}\r\n\r\n  \tproto._initHooks = [];\r\n\r\n  \t// add method for calling all hooks\r\n  \tproto.callInitHooks = function () {\r\n\r\n  \t\tif (this._initHooksCalled) { return; }\r\n\r\n  \t\tif (parentProto.callInitHooks) {\r\n  \t\t\tparentProto.callInitHooks.call(this);\r\n  \t\t}\r\n\r\n  \t\tthis._initHooksCalled = true;\r\n\r\n  \t\tfor (var i = 0, len = proto._initHooks.length; i < len; i++) {\r\n  \t\t\tproto._initHooks[i].call(this);\r\n  \t\t}\r\n  \t};\r\n\r\n  \treturn NewClass;\r\n  };\r\n\r\n\r\n  // @function include(properties: Object): this\r\n  // [Includes a mixin](#class-includes) into the current class.\r\n  Class.include = function (props) {\r\n  \tvar parentOptions = this.prototype.options;\r\n  \textend(this.prototype, props);\r\n  \tif (props.options) {\r\n  \t\tthis.prototype.options = parentOptions;\r\n  \t\tthis.mergeOptions(props.options);\r\n  \t}\r\n  \treturn this;\r\n  };\r\n\r\n  // @function mergeOptions(options: Object): this\r\n  // [Merges `options`](#class-options) into the defaults of the class.\r\n  Class.mergeOptions = function (options) {\r\n  \textend(this.prototype.options, options);\r\n  \treturn this;\r\n  };\r\n\r\n  // @function addInitHook(fn: Function): this\r\n  // Adds a [constructor hook](#class-constructor-hooks) to the class.\r\n  Class.addInitHook = function (fn) { // (Function) || (String, args...)\r\n  \tvar args = Array.prototype.slice.call(arguments, 1);\r\n\r\n  \tvar init = typeof fn === 'function' ? fn : function () {\r\n  \t\tthis[fn].apply(this, args);\r\n  \t};\r\n\r\n  \tthis.prototype._initHooks = this.prototype._initHooks || [];\r\n  \tthis.prototype._initHooks.push(init);\r\n  \treturn this;\r\n  };\r\n\r\n  function checkDeprecatedMixinEvents(includes) {\r\n  \t/* global L: true */\r\n  \tif (typeof L === 'undefined' || !L || !L.Mixin) { return; }\r\n\r\n  \tincludes = isArray(includes) ? includes : [includes];\r\n\r\n  \tfor (var i = 0; i < includes.length; i++) {\r\n  \t\tif (includes[i] === L.Mixin.Events) {\r\n  \t\t\tconsole.warn('Deprecated include of L.Mixin.Events: ' +\r\n  \t\t\t\t'this property will be removed in future releases, ' +\r\n  \t\t\t\t'please inherit from L.Evented instead.', new Error().stack);\r\n  \t\t}\r\n  \t}\r\n  }\n\n  /*\r\n   * @class Evented\r\n   * @aka L.Evented\r\n   * @inherits Class\r\n   *\r\n   * A set of methods shared between event-powered classes (like `Map` and `Marker`). Generally, events allow you to execute some function when something happens with an object (e.g. the user clicks on the map, causing the map to fire `'click'` event).\r\n   *\r\n   * @example\r\n   *\r\n   * ```js\r\n   * map.on('click', function(e) {\r\n   * \talert(e.latlng);\r\n   * } );\r\n   * ```\r\n   *\r\n   * Leaflet deals with event listeners by reference, so if you want to add a listener and then remove it, define it as a function:\r\n   *\r\n   * ```js\r\n   * function onClick(e) { ... }\r\n   *\r\n   * map.on('click', onClick);\r\n   * map.off('click', onClick);\r\n   * ```\r\n   */\r\n\r\n  var Events = {\r\n  \t/* @method on(type: String, fn: Function, context?: Object): this\r\n  \t * Adds a listener function (`fn`) to a particular event type of the object. You can optionally specify the context of the listener (object the this keyword will point to). You can also pass several space-separated types (e.g. `'click dblclick'`).\r\n  \t *\r\n  \t * @alternative\r\n  \t * @method on(eventMap: Object): this\r\n  \t * Adds a set of type/listener pairs, e.g. `{click: onClick, mousemove: onMouseMove}`\r\n  \t */\r\n  \ton: function (types, fn, context) {\r\n\r\n  \t\t// types can be a map of types/handlers\r\n  \t\tif (typeof types === 'object') {\r\n  \t\t\tfor (var type in types) {\r\n  \t\t\t\t// we don't process space-separated events here for performance;\r\n  \t\t\t\t// it's a hot path since Layer uses the on(obj) syntax\r\n  \t\t\t\tthis._on(type, types[type], fn);\r\n  \t\t\t}\r\n\r\n  \t\t} else {\r\n  \t\t\t// types can be a string of space-separated words\r\n  \t\t\ttypes = splitWords(types);\r\n\r\n  \t\t\tfor (var i = 0, len = types.length; i < len; i++) {\r\n  \t\t\t\tthis._on(types[i], fn, context);\r\n  \t\t\t}\r\n  \t\t}\r\n\r\n  \t\treturn this;\r\n  \t},\r\n\r\n  \t/* @method off(type: String, fn?: Function, context?: Object): this\r\n  \t * Removes a previously added listener function. If no function is specified, it will remove all the listeners of that particular event from the object. Note that if you passed a custom context to `on`, you must pass the same context to `off` in order to remove the listener.\r\n  \t *\r\n  \t * @alternative\r\n  \t * @method off(eventMap: Object): this\r\n  \t * Removes a set of type/listener pairs.\r\n  \t *\r\n  \t * @alternative\r\n  \t * @method off: this\r\n  \t * Removes all listeners to all events on the object. This includes implicitly attached events.\r\n  \t */\r\n  \toff: function (types, fn, context) {\r\n\r\n  \t\tif (!arguments.length) {\r\n  \t\t\t// clear all listeners if called without arguments\r\n  \t\t\tdelete this._events;\r\n\r\n  \t\t} else if (typeof types === 'object') {\r\n  \t\t\tfor (var type in types) {\r\n  \t\t\t\tthis._off(type, types[type], fn);\r\n  \t\t\t}\r\n\r\n  \t\t} else {\r\n  \t\t\ttypes = splitWords(types);\r\n\r\n  \t\t\tvar removeAll = arguments.length === 1;\r\n  \t\t\tfor (var i = 0, len = types.length; i < len; i++) {\r\n  \t\t\t\tif (removeAll) {\r\n  \t\t\t\t\tthis._off(types[i]);\r\n  \t\t\t\t} else {\r\n  \t\t\t\t\tthis._off(types[i], fn, context);\r\n  \t\t\t\t}\r\n  \t\t\t}\r\n  \t\t}\r\n\r\n  \t\treturn this;\r\n  \t},\r\n\r\n  \t// attach listener (without syntactic sugar now)\r\n  \t_on: function (type, fn, context, _once) {\r\n  \t\tif (typeof fn !== 'function') {\r\n  \t\t\tconsole.warn('wrong listener type: ' + typeof fn);\r\n  \t\t\treturn;\r\n  \t\t}\r\n\r\n  \t\t// check if fn already there\r\n  \t\tif (this._listens(type, fn, context) !== false) {\r\n  \t\t\treturn;\r\n  \t\t}\r\n\r\n  \t\tif (context === this) {\r\n  \t\t\t// Less memory footprint.\r\n  \t\t\tcontext = undefined;\r\n  \t\t}\r\n\r\n  \t\tvar newListener = {fn: fn, ctx: context};\r\n  \t\tif (_once) {\r\n  \t\t\tnewListener.once = true;\r\n  \t\t}\r\n\r\n  \t\tthis._events = this._events || {};\r\n  \t\tthis._events[type] = this._events[type] || [];\r\n  \t\tthis._events[type].push(newListener);\r\n  \t},\r\n\r\n  \t_off: function (type, fn, context) {\r\n  \t\tvar listeners,\r\n  \t\t    i,\r\n  \t\t    len;\r\n\r\n  \t\tif (!this._events) {\r\n  \t\t\treturn;\r\n  \t\t}\r\n\r\n  \t\tlisteners = this._events[type];\r\n  \t\tif (!listeners) {\r\n  \t\t\treturn;\r\n  \t\t}\r\n\r\n  \t\tif (arguments.length === 1) { // remove all\r\n  \t\t\tif (this._firingCount) {\r\n  \t\t\t\t// Set all removed listeners to noop\r\n  \t\t\t\t// so they are not called if remove happens in fire\r\n  \t\t\t\tfor (i = 0, len = listeners.length; i < len; i++) {\r\n  \t\t\t\t\tlisteners[i].fn = falseFn;\r\n  \t\t\t\t}\r\n  \t\t\t}\r\n  \t\t\t// clear all listeners for a type if function isn't specified\r\n  \t\t\tdelete this._events[type];\r\n  \t\t\treturn;\r\n  \t\t}\r\n\r\n  \t\tif (typeof fn !== 'function') {\r\n  \t\t\tconsole.warn('wrong listener type: ' + typeof fn);\r\n  \t\t\treturn;\r\n  \t\t}\r\n\r\n  \t\t// find fn and remove it\r\n  \t\tvar index = this._listens(type, fn, context);\r\n  \t\tif (index !== false) {\r\n  \t\t\tvar listener = listeners[index];\r\n  \t\t\tif (this._firingCount) {\r\n  \t\t\t\t// set the removed listener to noop so that's not called if remove happens in fire\r\n  \t\t\t\tlistener.fn = falseFn;\r\n\r\n  \t\t\t\t/* copy array in case events are being fired */\r\n  \t\t\t\tthis._events[type] = listeners = listeners.slice();\r\n  \t\t\t}\r\n  \t\t\tlisteners.splice(index, 1);\r\n  \t\t}\r\n  \t},\r\n\r\n  \t// @method fire(type: String, data?: Object, propagate?: Boolean): this\r\n  \t// Fires an event of the specified type. You can optionally provide a data\r\n  \t// object — the first argument of the listener function will contain its\r\n  \t// properties. The event can optionally be propagated to event parents.\r\n  \tfire: function (type, data, propagate) {\r\n  \t\tif (!this.listens(type, propagate)) { return this; }\r\n\r\n  \t\tvar event = extend({}, data, {\r\n  \t\t\ttype: type,\r\n  \t\t\ttarget: this,\r\n  \t\t\tsourceTarget: data && data.sourceTarget || this\r\n  \t\t});\r\n\r\n  \t\tif (this._events) {\r\n  \t\t\tvar listeners = this._events[type];\r\n  \t\t\tif (listeners) {\r\n  \t\t\t\tthis._firingCount = (this._firingCount + 1) || 1;\r\n  \t\t\t\tfor (var i = 0, len = listeners.length; i < len; i++) {\r\n  \t\t\t\t\tvar l = listeners[i];\r\n  \t\t\t\t\t// off overwrites l.fn, so we need to copy fn to a var\r\n  \t\t\t\t\tvar fn = l.fn;\r\n  \t\t\t\t\tif (l.once) {\r\n  \t\t\t\t\t\tthis.off(type, fn, l.ctx);\r\n  \t\t\t\t\t}\r\n  \t\t\t\t\tfn.call(l.ctx || this, event);\r\n  \t\t\t\t}\r\n\r\n  \t\t\t\tthis._firingCount--;\r\n  \t\t\t}\r\n  \t\t}\r\n\r\n  \t\tif (propagate) {\r\n  \t\t\t// propagate the event to parents (set with addEventParent)\r\n  \t\t\tthis._propagateEvent(event);\r\n  \t\t}\r\n\r\n  \t\treturn this;\r\n  \t},\r\n\r\n  \t// @method listens(type: String, propagate?: Boolean): Boolean\r\n  \t// @method listens(type: String, fn: Function, context?: Object, propagate?: Boolean): Boolean\r\n  \t// Returns `true` if a particular event type has any listeners attached to it.\r\n  \t// The verification can optionally be propagated, it will return `true` if parents have the listener attached to it.\r\n  \tlistens: function (type, fn, context, propagate) {\r\n  \t\tif (typeof type !== 'string') {\r\n  \t\t\tconsole.warn('\"string\" type argument expected');\r\n  \t\t}\r\n\r\n  \t\t// we don't overwrite the input `fn` value, because we need to use it for propagation\r\n  \t\tvar _fn = fn;\r\n  \t\tif (typeof fn !== 'function') {\r\n  \t\t\tpropagate = !!fn;\r\n  \t\t\t_fn = undefined;\r\n  \t\t\tcontext = undefined;\r\n  \t\t}\r\n\r\n  \t\tvar listeners = this._events && this._events[type];\r\n  \t\tif (listeners && listeners.length) {\r\n  \t\t\tif (this._listens(type, _fn, context) !== false) {\r\n  \t\t\t\treturn true;\r\n  \t\t\t}\r\n  \t\t}\r\n\r\n  \t\tif (propagate) {\r\n  \t\t\t// also check parents for listeners if event propagates\r\n  \t\t\tfor (var id in this._eventParents) {\r\n  \t\t\t\tif (this._eventParents[id].listens(type, fn, context, propagate)) { return true; }\r\n  \t\t\t}\r\n  \t\t}\r\n  \t\treturn false;\r\n  \t},\r\n\r\n  \t// returns the index (number) or false\r\n  \t_listens: function (type, fn, context) {\r\n  \t\tif (!this._events) {\r\n  \t\t\treturn false;\r\n  \t\t}\r\n\r\n  \t\tvar listeners = this._events[type] || [];\r\n  \t\tif (!fn) {\r\n  \t\t\treturn !!listeners.length;\r\n  \t\t}\r\n\r\n  \t\tif (context === this) {\r\n  \t\t\t// Less memory footprint.\r\n  \t\t\tcontext = undefined;\r\n  \t\t}\r\n\r\n  \t\tfor (var i = 0, len = listeners.length; i < len; i++) {\r\n  \t\t\tif (listeners[i].fn === fn && listeners[i].ctx === context) {\r\n  \t\t\t\treturn i;\r\n  \t\t\t}\r\n  \t\t}\r\n  \t\treturn false;\r\n\r\n  \t},\r\n\r\n  \t// @method once(…): this\r\n  \t// Behaves as [`on(…)`](#evented-on), except the listener will only get fired once and then removed.\r\n  \tonce: function (types, fn, context) {\r\n\r\n  \t\t// types can be a map of types/handlers\r\n  \t\tif (typeof types === 'object') {\r\n  \t\t\tfor (var type in types) {\r\n  \t\t\t\t// we don't process space-separated events here for performance;\r\n  \t\t\t\t// it's a hot path since Layer uses the on(obj) syntax\r\n  \t\t\t\tthis._on(type, types[type], fn, true);\r\n  \t\t\t}\r\n\r\n  \t\t} else {\r\n  \t\t\t// types can be a string of space-separated words\r\n  \t\t\ttypes = splitWords(types);\r\n\r\n  \t\t\tfor (var i = 0, len = types.length; i < len; i++) {\r\n  \t\t\t\tthis._on(types[i], fn, context, true);\r\n  \t\t\t}\r\n  \t\t}\r\n\r\n  \t\treturn this;\r\n  \t},\r\n\r\n  \t// @method addEventParent(obj: Evented): this\r\n  \t// Adds an event parent - an `Evented` that will receive propagated events\r\n  \taddEventParent: function (obj) {\r\n  \t\tthis._eventParents = this._eventParents || {};\r\n  \t\tthis._eventParents[stamp(obj)] = obj;\r\n  \t\treturn this;\r\n  \t},\r\n\r\n  \t// @method removeEventParent(obj: Evented): this\r\n  \t// Removes an event parent, so it will stop receiving propagated events\r\n  \tremoveEventParent: function (obj) {\r\n  \t\tif (this._eventParents) {\r\n  \t\t\tdelete this._eventParents[stamp(obj)];\r\n  \t\t}\r\n  \t\treturn this;\r\n  \t},\r\n\r\n  \t_propagateEvent: function (e) {\r\n  \t\tfor (var id in this._eventParents) {\r\n  \t\t\tthis._eventParents[id].fire(e.type, extend({\r\n  \t\t\t\tlayer: e.target,\r\n  \t\t\t\tpropagatedFrom: e.target\r\n  \t\t\t}, e), true);\r\n  \t\t}\r\n  \t}\r\n  };\r\n\r\n  // aliases; we should ditch those eventually\r\n\r\n  // @method addEventListener(…): this\r\n  // Alias to [`on(…)`](#evented-on)\r\n  Events.addEventListener = Events.on;\r\n\r\n  // @method removeEventListener(…): this\r\n  // Alias to [`off(…)`](#evented-off)\r\n\r\n  // @method clearAllEventListeners(…): this\r\n  // Alias to [`off()`](#evented-off)\r\n  Events.removeEventListener = Events.clearAllEventListeners = Events.off;\r\n\r\n  // @method addOneTimeEventListener(…): this\r\n  // Alias to [`once(…)`](#evented-once)\r\n  Events.addOneTimeEventListener = Events.once;\r\n\r\n  // @method fireEvent(…): this\r\n  // Alias to [`fire(…)`](#evented-fire)\r\n  Events.fireEvent = Events.fire;\r\n\r\n  // @method hasEventListeners(…): Boolean\r\n  // Alias to [`listens(…)`](#evented-listens)\r\n  Events.hasEventListeners = Events.listens;\r\n\r\n  var Evented = Class.extend(Events);\n\n  /*\r\n   * @class Point\r\n   * @aka L.Point\r\n   *\r\n   * Represents a point with `x` and `y` coordinates in pixels.\r\n   *\r\n   * @example\r\n   *\r\n   * ```js\r\n   * var point = L.point(200, 300);\r\n   * ```\r\n   *\r\n   * All Leaflet methods and options that accept `Point` objects also accept them in a simple Array form (unless noted otherwise), so these lines are equivalent:\r\n   *\r\n   * ```js\r\n   * map.panBy([200, 300]);\r\n   * map.panBy(L.point(200, 300));\r\n   * ```\r\n   *\r\n   * Note that `Point` does not inherit from Leaflet's `Class` object,\r\n   * which means new classes can't inherit from it, and new methods\r\n   * can't be added to it with the `include` function.\r\n   */\r\n\r\n  function Point(x, y, round) {\r\n  \t// @property x: Number; The `x` coordinate of the point\r\n  \tthis.x = (round ? Math.round(x) : x);\r\n  \t// @property y: Number; The `y` coordinate of the point\r\n  \tthis.y = (round ? Math.round(y) : y);\r\n  }\r\n\r\n  var trunc = Math.trunc || function (v) {\r\n  \treturn v > 0 ? Math.floor(v) : Math.ceil(v);\r\n  };\r\n\r\n  Point.prototype = {\r\n\r\n  \t// @method clone(): Point\r\n  \t// Returns a copy of the current point.\r\n  \tclone: function () {\r\n  \t\treturn new Point(this.x, this.y);\r\n  \t},\r\n\r\n  \t// @method add(otherPoint: Point): Point\r\n  \t// Returns the result of addition of the current and the given points.\r\n  \tadd: function (point) {\r\n  \t\t// non-destructive, returns a new point\r\n  \t\treturn this.clone()._add(toPoint(point));\r\n  \t},\r\n\r\n  \t_add: function (point) {\r\n  \t\t// destructive, used directly for performance in situations where it's safe to modify existing point\r\n  \t\tthis.x += point.x;\r\n  \t\tthis.y += point.y;\r\n  \t\treturn this;\r\n  \t},\r\n\r\n  \t// @method subtract(otherPoint: Point): Point\r\n  \t// Returns the result of subtraction of the given point from the current.\r\n  \tsubtract: function (point) {\r\n  \t\treturn this.clone()._subtract(toPoint(point));\r\n  \t},\r\n\r\n  \t_subtract: function (point) {\r\n  \t\tthis.x -= point.x;\r\n  \t\tthis.y -= point.y;\r\n  \t\treturn this;\r\n  \t},\r\n\r\n  \t// @method divideBy(num: Number): Point\r\n  \t// Returns the result of division of the current point by the given number.\r\n  \tdivideBy: function (num) {\r\n  \t\treturn this.clone()._divideBy(num);\r\n  \t},\r\n\r\n  \t_divideBy: function (num) {\r\n  \t\tthis.x /= num;\r\n  \t\tthis.y /= num;\r\n  \t\treturn this;\r\n  \t},\r\n\r\n  \t// @method multiplyBy(num: Number): Point\r\n  \t// Returns the result of multiplication of the current point by the given number.\r\n  \tmultiplyBy: function (num) {\r\n  \t\treturn this.clone()._multiplyBy(num);\r\n  \t},\r\n\r\n  \t_multiplyBy: function (num) {\r\n  \t\tthis.x *= num;\r\n  \t\tthis.y *= num;\r\n  \t\treturn this;\r\n  \t},\r\n\r\n  \t// @method scaleBy(scale: Point): Point\r\n  \t// Multiply each coordinate of the current point by each coordinate of\r\n  \t// `scale`. In linear algebra terms, multiply the point by the\r\n  \t// [scaling matrix](https://en.wikipedia.org/wiki/Scaling_%28geometry%29#Matrix_representation)\r\n  \t// defined by `scale`.\r\n  \tscaleBy: function (point) {\r\n  \t\treturn new Point(this.x * point.x, this.y * point.y);\r\n  \t},\r\n\r\n  \t// @method unscaleBy(scale: Point): Point\r\n  \t// Inverse of `scaleBy`. Divide each coordinate of the current point by\r\n  \t// each coordinate of `scale`.\r\n  \tunscaleBy: function (point) {\r\n  \t\treturn new Point(this.x / point.x, this.y / point.y);\r\n  \t},\r\n\r\n  \t// @method round(): Point\r\n  \t// Returns a copy of the current point with rounded coordinates.\r\n  \tround: function () {\r\n  \t\treturn this.clone()._round();\r\n  \t},\r\n\r\n  \t_round: function () {\r\n  \t\tthis.x = Math.round(this.x);\r\n  \t\tthis.y = Math.round(this.y);\r\n  \t\treturn this;\r\n  \t},\r\n\r\n  \t// @method floor(): Point\r\n  \t// Returns a copy of the current point with floored coordinates (rounded down).\r\n  \tfloor: function () {\r\n  \t\treturn this.clone()._floor();\r\n  \t},\r\n\r\n  \t_floor: function () {\r\n  \t\tthis.x = Math.floor(this.x);\r\n  \t\tthis.y = Math.floor(this.y);\r\n  \t\treturn this;\r\n  \t},\r\n\r\n  \t// @method ceil(): Point\r\n  \t// Returns a copy of the current point with ceiled coordinates (rounded up).\r\n  \tceil: function () {\r\n  \t\treturn this.clone()._ceil();\r\n  \t},\r\n\r\n  \t_ceil: function () {\r\n  \t\tthis.x = Math.ceil(this.x);\r\n  \t\tthis.y = Math.ceil(this.y);\r\n  \t\treturn this;\r\n  \t},\r\n\r\n  \t// @method trunc(): Point\r\n  \t// Returns a copy of the current point with truncated coordinates (rounded towards zero).\r\n  \ttrunc: function () {\r\n  \t\treturn this.clone()._trunc();\r\n  \t},\r\n\r\n  \t_trunc: function () {\r\n  \t\tthis.x = trunc(this.x);\r\n  \t\tthis.y = trunc(this.y);\r\n  \t\treturn this;\r\n  \t},\r\n\r\n  \t// @method distanceTo(otherPoint: Point): Number\r\n  \t// Returns the cartesian distance between the current and the given points.\r\n  \tdistanceTo: function (point) {\r\n  \t\tpoint = toPoint(point);\r\n\r\n  \t\tvar x = point.x - this.x,\r\n  \t\t    y = point.y - this.y;\r\n\r\n  \t\treturn Math.sqrt(x * x + y * y);\r\n  \t},\r\n\r\n  \t// @method equals(otherPoint: Point): Boolean\r\n  \t// Returns `true` if the given point has the same coordinates.\r\n  \tequals: function (point) {\r\n  \t\tpoint = toPoint(point);\r\n\r\n  \t\treturn point.x === this.x &&\r\n  \t\t       point.y === this.y;\r\n  \t},\r\n\r\n  \t// @method contains(otherPoint: Point): Boolean\r\n  \t// Returns `true` if both coordinates of the given point are less than the corresponding current point coordinates (in absolute values).\r\n  \tcontains: function (point) {\r\n  \t\tpoint = toPoint(point);\r\n\r\n  \t\treturn Math.abs(point.x) <= Math.abs(this.x) &&\r\n  \t\t       Math.abs(point.y) <= Math.abs(this.y);\r\n  \t},\r\n\r\n  \t// @method toString(): String\r\n  \t// Returns a string representation of the point for debugging purposes.\r\n  \ttoString: function () {\r\n  \t\treturn 'Point(' +\r\n  \t\t        formatNum(this.x) + ', ' +\r\n  \t\t        formatNum(this.y) + ')';\r\n  \t}\r\n  };\r\n\r\n  // @factory L.point(x: Number, y: Number, round?: Boolean)\r\n  // Creates a Point object with the given `x` and `y` coordinates. If optional `round` is set to true, rounds the `x` and `y` values.\r\n\r\n  // @alternative\r\n  // @factory L.point(coords: Number[])\r\n  // Expects an array of the form `[x, y]` instead.\r\n\r\n  // @alternative\r\n  // @factory L.point(coords: Object)\r\n  // Expects a plain object of the form `{x: Number, y: Number}` instead.\r\n  function toPoint(x, y, round) {\r\n  \tif (x instanceof Point) {\r\n  \t\treturn x;\r\n  \t}\r\n  \tif (isArray(x)) {\r\n  \t\treturn new Point(x[0], x[1]);\r\n  \t}\r\n  \tif (x === undefined || x === null) {\r\n  \t\treturn x;\r\n  \t}\r\n  \tif (typeof x === 'object' && 'x' in x && 'y' in x) {\r\n  \t\treturn new Point(x.x, x.y);\r\n  \t}\r\n  \treturn new Point(x, y, round);\r\n  }\n\n  /*\r\n   * @class Bounds\r\n   * @aka L.Bounds\r\n   *\r\n   * Represents a rectangular area in pixel coordinates.\r\n   *\r\n   * @example\r\n   *\r\n   * ```js\r\n   * var p1 = L.point(10, 10),\r\n   * p2 = L.point(40, 60),\r\n   * bounds = L.bounds(p1, p2);\r\n   * ```\r\n   *\r\n   * All Leaflet methods that accept `Bounds` objects also accept them in a simple Array form (unless noted otherwise), so the bounds example above can be passed like this:\r\n   *\r\n   * ```js\r\n   * otherBounds.intersects([[10, 10], [40, 60]]);\r\n   * ```\r\n   *\r\n   * Note that `Bounds` does not inherit from Leaflet's `Class` object,\r\n   * which means new classes can't inherit from it, and new methods\r\n   * can't be added to it with the `include` function.\r\n   */\r\n\r\n  function Bounds(a, b) {\r\n  \tif (!a) { return; }\r\n\r\n  \tvar points = b ? [a, b] : a;\r\n\r\n  \tfor (var i = 0, len = points.length; i < len; i++) {\r\n  \t\tthis.extend(points[i]);\r\n  \t}\r\n  }\r\n\r\n  Bounds.prototype = {\r\n  \t// @method extend(point: Point): this\r\n  \t// Extends the bounds to contain the given point.\r\n\r\n  \t// @alternative\r\n  \t// @method extend(otherBounds: Bounds): this\r\n  \t// Extend the bounds to contain the given bounds\r\n  \textend: function (obj) {\r\n  \t\tvar min2, max2;\r\n  \t\tif (!obj) { return this; }\r\n\r\n  \t\tif (obj instanceof Point || typeof obj[0] === 'number' || 'x' in obj) {\r\n  \t\t\tmin2 = max2 = toPoint(obj);\r\n  \t\t} else {\r\n  \t\t\tobj = toBounds(obj);\r\n  \t\t\tmin2 = obj.min;\r\n  \t\t\tmax2 = obj.max;\r\n\r\n  \t\t\tif (!min2 || !max2) { return this; }\r\n  \t\t}\r\n\r\n  \t\t// @property min: Point\r\n  \t\t// The top left corner of the rectangle.\r\n  \t\t// @property max: Point\r\n  \t\t// The bottom right corner of the rectangle.\r\n  \t\tif (!this.min && !this.max) {\r\n  \t\t\tthis.min = min2.clone();\r\n  \t\t\tthis.max = max2.clone();\r\n  \t\t} else {\r\n  \t\t\tthis.min.x = Math.min(min2.x, this.min.x);\r\n  \t\t\tthis.max.x = Math.max(max2.x, this.max.x);\r\n  \t\t\tthis.min.y = Math.min(min2.y, this.min.y);\r\n  \t\t\tthis.max.y = Math.max(max2.y, this.max.y);\r\n  \t\t}\r\n  \t\treturn this;\r\n  \t},\r\n\r\n  \t// @method getCenter(round?: Boolean): Point\r\n  \t// Returns the center point of the bounds.\r\n  \tgetCenter: function (round) {\r\n  \t\treturn toPoint(\r\n  \t\t        (this.min.x + this.max.x) / 2,\r\n  \t\t        (this.min.y + this.max.y) / 2, round);\r\n  \t},\r\n\r\n  \t// @method getBottomLeft(): Point\r\n  \t// Returns the bottom-left point of the bounds.\r\n  \tgetBottomLeft: function () {\r\n  \t\treturn toPoint(this.min.x, this.max.y);\r\n  \t},\r\n\r\n  \t// @method getTopRight(): Point\r\n  \t// Returns the top-right point of the bounds.\r\n  \tgetTopRight: function () { // -> Point\r\n  \t\treturn toPoint(this.max.x, this.min.y);\r\n  \t},\r\n\r\n  \t// @method getTopLeft(): Point\r\n  \t// Returns the top-left point of the bounds (i.e. [`this.min`](#bounds-min)).\r\n  \tgetTopLeft: function () {\r\n  \t\treturn this.min; // left, top\r\n  \t},\r\n\r\n  \t// @method getBottomRight(): Point\r\n  \t// Returns the bottom-right point of the bounds (i.e. [`this.max`](#bounds-max)).\r\n  \tgetBottomRight: function () {\r\n  \t\treturn this.max; // right, bottom\r\n  \t},\r\n\r\n  \t// @method getSize(): Point\r\n  \t// Returns the size of the given bounds\r\n  \tgetSize: function () {\r\n  \t\treturn this.max.subtract(this.min);\r\n  \t},\r\n\r\n  \t// @method contains(otherBounds: Bounds): Boolean\r\n  \t// Returns `true` if the rectangle contains the given one.\r\n  \t// @alternative\r\n  \t// @method contains(point: Point): Boolean\r\n  \t// Returns `true` if the rectangle contains the given point.\r\n  \tcontains: function (obj) {\r\n  \t\tvar min, max;\r\n\r\n  \t\tif (typeof obj[0] === 'number' || obj instanceof Point) {\r\n  \t\t\tobj = toPoint(obj);\r\n  \t\t} else {\r\n  \t\t\tobj = toBounds(obj);\r\n  \t\t}\r\n\r\n  \t\tif (obj instanceof Bounds) {\r\n  \t\t\tmin = obj.min;\r\n  \t\t\tmax = obj.max;\r\n  \t\t} else {\r\n  \t\t\tmin = max