+(function (window, document, undefined) {
+var oldL = window.L,
+ L = {};
+
+L.version = '0.7.2';
+
+// define Leaflet for Node module pattern loaders, including Browserify
+if (typeof module === 'object' && typeof module.exports === 'object') {
+ module.exports = L;
+
+// define Leaflet as an AMD module
+} else if (typeof define === 'function' && define.amd) {
+ define(L);
+}
+
+// define Leaflet as a global L variable, saving the original L to restore later if needed
+
+L.noConflict = function () {
+ window.L = oldL;
+ return this;
+};
+
+window.L = L;
+
+
+/*
+ * L.Util contains various utility functions used throughout Leaflet code.
+ */
+
+L.Util = {
+ extend: function (dest) { // (Object[, Object, ...]) ->
+ var sources = Array.prototype.slice.call(arguments, 1),
+ i, j, len, src;
+
+ for (j = 0, len = sources.length; j < len; j++) {
+ src = sources[j] || {};
+ for (i in src) {
+ if (src.hasOwnProperty(i)) {
+ dest[i] = src[i];
+ }
+ }
+ }
+ return dest;
+ },
+
+ bind: function (fn, obj) { // (Function, Object) -> Function
+ var args = arguments.length > 2 ? Array.prototype.slice.call(arguments, 2) : null;
+ return function () {
+ return fn.apply(obj, args || arguments);
+ };
+ },
+
+ stamp: (function () {
+ var lastId = 0,
+ key = '_leaflet_id';
+ return function (obj) {
+ obj[key] = obj[key] || ++lastId;
+ return obj[key];
+ };
+ }()),
+
+ invokeEach: function (obj, method, context) {
+ var i, args;
+
+ if (typeof obj === 'object') {
+ args = Array.prototype.slice.call(arguments, 3);
+
+ for (i in obj) {
+ method.apply(context, [i, obj[i]].concat(args));
+ }
+ return true;
+ }
+
+ return false;
+ },
+
+ limitExecByInterval: function (fn, time, context) {
+ var lock, execOnUnlock;
+
+ return function wrapperFn() {
+ var args = arguments;
+
+ if (lock) {
+ execOnUnlock = true;
+ return;
+ }
+
+ lock = true;
+
+ setTimeout(function () {
+ lock = false;
+
+ if (execOnUnlock) {
+ wrapperFn.apply(context, args);
+ execOnUnlock = false;
+ }
+ }, time);
+
+ fn.apply(context, args);
+ };
+ },
+
+ falseFn: function () {
+ return false;
+ },
+
+ formatNum: function (num, digits) {
+ var pow = Math.pow(10, digits || 5);
+ return Math.round(num * pow) / pow;
+ },
+
+ trim: function (str) {
+ return str.trim ? str.trim() : str.replace(/^\s+|\s+$/g, '');
+ },
+
+ splitWords: function (str) {
+ return L.Util.trim(str).split(/\s+/);
+ },
+
+ setOptions: function (obj, options) {
+ obj.options = L.extend({}, obj.options, options);
+ return obj.options;
+ },
+
+ getParamString: function (obj, existingUrl, uppercase) {
+ var params = [];
+ for (var i in obj) {
+ params.push(encodeURIComponent(uppercase ? i.toUpperCase() : i) + '=' + encodeURIComponent(obj[i]));
+ }
+ return ((!existingUrl || existingUrl.indexOf('?') === -1) ? '?' : '&') + params.join('&');
+ },
+ template: function (str, data) {
+ return str.replace(/\{ *([\w_]+) *\}/g, function (str, key) {
+ var value = data[key];
+ if (value === undefined) {
+ throw new Error('No value provided for variable ' + str);
+ } else if (typeof value === 'function') {
+ value = value(data);
+ }
+ return value;
+ });
+ },
+
+ isArray: Array.isArray || function (obj) {
+ return (Object.prototype.toString.call(obj) === '[object Array]');
+ },
+
+ emptyImageUrl: 'data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs='
+};
+
+(function () {
+
+ // inspired by http://paulirish.com/2011/requestanimationframe-for-smart-animating/
+
+ function getPrefixed(name) {
+ var i, fn,
+ prefixes = ['webkit', 'moz', 'o', 'ms'];
+
+ for (i = 0; i < prefixes.length && !fn; i++) {
+ fn = window[prefixes[i] + name];
+ }
+
+ return fn;
+ }
+
+ var lastTime = 0;
+
+ function timeoutDefer(fn) {
+ var time = +new Date(),
+ timeToCall = Math.max(0, 16 - (time - lastTime));
+
+ lastTime = time + timeToCall;
+ return window.setTimeout(fn, timeToCall);
+ }
+
+ var requestFn = window.requestAnimationFrame ||
+ getPrefixed('RequestAnimationFrame') || timeoutDefer;
+
+ var cancelFn = window.cancelAnimationFrame ||
+ getPrefixed('CancelAnimationFrame') ||
+ getPrefixed('CancelRequestAnimationFrame') ||
+ function (id) { window.clearTimeout(id); };
+
+
+ L.Util.requestAnimFrame = function (fn, context, immediate, element) {
+ fn = L.bind(fn, context);
+
+ if (immediate && requestFn === timeoutDefer) {
+ fn();
+ } else {
+ return requestFn.call(window, fn, element);
+ }
+ };
+
+ L.Util.cancelAnimFrame = function (id) {
+ if (id) {
+ cancelFn.call(window, id);
+ }
+ };
+
+}());
+
+// shortcuts for most used utility functions
+L.extend = L.Util.extend;
+L.bind = L.Util.bind;
+L.stamp = L.Util.stamp;
+L.setOptions = L.Util.setOptions;
+
+
+/*
+ * L.Class powers the OOP facilities of the library.
+ * Thanks to John Resig and Dean Edwards for inspiration!
+ */
+
+L.Class = function () {};
+
+L.Class.extend = function (props) {
+
+ // extended class with the new prototype
+ var NewClass = function () {
+
+ // call the constructor
+ if (this.initialize) {
+ this.initialize.apply(this, arguments);
+ }
+
+ // call all constructor hooks
+ if (this._initHooks) {
+ this.callInitHooks();
+ }
+ };
+
+ // instantiate class without calling constructor
+ var F = function () {};
+ F.prototype = this.prototype;
+
+ var proto = new F();
+ proto.constructor = NewClass;
+
+ NewClass.prototype = proto;
+
+ //inherit parent's statics
+ for (var i in this) {
+ if (this.hasOwnProperty(i) && i !== 'prototype') {
+ NewClass[i] = this[i];
+ }
+ }
+
+ // mix static properties into the class
+ if (props.statics) {
+ L.extend(NewClass, props.statics);
+ delete props.statics;
+ }
+
+ // mix includes into the prototype
+ if (props.includes) {
+ L.Util.extend.apply(null, [proto].concat(props.includes));
+ delete props.includes;
+ }
+
+ // merge options
+ if (props.options && proto.options) {
+ props.options = L.extend({}, proto.options, props.options);
+ }
+
+ // mix given properties into the prototype
+ L.extend(proto, props);
+
+ proto._initHooks = [];
+
+ var parent = this;
+ // jshint camelcase: false
+ NewClass.__super__ = parent.prototype;
+
+ // add method for calling all hooks
+ proto.callInitHooks = function () {
+
+ if (this._initHooksCalled) { return; }
+
+ if (parent.prototype.callInitHooks) {
+ parent.prototype.callInitHooks.call(this);
+ }
+
+ this._initHooksCalled = true;
+
+ for (var i = 0, len = proto._initHooks.length; i < len; i++) {
+ proto._initHooks[i].call(this);
+ }
+ };
+
+ return NewClass;
+};
+
+
+// method for adding properties to prototype
+L.Class.include = function (props) {
+ L.extend(this.prototype, props);
+};
+
+// merge new default options to the Class
+L.Class.mergeOptions = function (options) {
+ L.extend(this.prototype.options, options);
+};
+
+// add a constructor hook
+L.Class.addInitHook = function (fn) { // (Function) || (String, args...)
+ var args = Array.prototype.slice.call(arguments, 1);
+
+ var init = typeof fn === 'function' ? fn : function () {
+ this[fn].apply(this, args);
+ };
+
+ this.prototype._initHooks = this.prototype._initHooks || [];
+ this.prototype._initHooks.push(init);
+};
+
+
+/*
+ * L.Mixin.Events is used to add custom events functionality to Leaflet classes.
+ */
+
+var eventsKey = '_leaflet_events';
+
+L.Mixin = {};
+
+L.Mixin.Events = {
+
+ addEventListener: function (types, fn, context) { // (String, Function[, Object]) or (Object[, Object])
+
+ // types can be a map of types/handlers
+ if (L.Util.invokeEach(types, this.addEventListener, this, fn, context)) { return this; }
+
+ var events = this[eventsKey] = this[eventsKey] || {},
+ contextId = context && context !== this && L.stamp(context),
+ i, len, event, type, indexKey, indexLenKey, typeIndex;
+
+ // types can be a string of space-separated words
+ types = L.Util.splitWords(types);
+
+ for (i = 0, len = types.length; i < len; i++) {
+ event = {
+ action: fn,
+ context: context || this
+ };
+ type = types[i];
+
+ if (contextId) {
+ // store listeners of a particular context in a separate hash (if it has an id)
+ // gives a major performance boost when removing thousands of map layers
+
+ indexKey = type + '_idx';
+ indexLenKey = indexKey + '_len';
+
+ typeIndex = events[indexKey] = events[indexKey] || {};
+
+ if (!typeIndex[contextId]) {
+ typeIndex[contextId] = [];
+
+ // keep track of the number of keys in the index to quickly check if it's empty
+ events[indexLenKey] = (events[indexLenKey] || 0) + 1;
+ }
+
+ typeIndex[contextId].push(event);
+
+
+ } else {
+ events[type] = events[type] || [];
+ events[type].push(event);
+ }
+ }
+
+ return this;
+ },
+
+ hasEventListeners: function (type) { // (String) -> Boolean
+ var events = this[eventsKey];
+ return !!events && ((type in events && events[type].length > 0) ||
+ (type + '_idx' in events && events[type + '_idx_len'] > 0));
+ },
+
+ removeEventListener: function (types, fn, context) { // ([String, Function, Object]) or (Object[, Object])
+
+ if (!this[eventsKey]) {
+ return this;
+ }
+
+ if (!types) {
+ return this.clearAllEventListeners();
+ }
+
+ if (L.Util.invokeEach(types, this.removeEventListener, this, fn, context)) { return this; }
+
+ var events = this[eventsKey],
+ contextId = context && context !== this && L.stamp(context),
+ i, len, type, listeners, j, indexKey, indexLenKey, typeIndex, removed;
+
+ types = L.Util.splitWords(types);
+
+ for (i = 0, len = types.length; i < len; i++) {
+ type = types[i];
+ indexKey = type + '_idx';
+ indexLenKey = indexKey + '_len';
+
+ typeIndex = events[indexKey];
+
+ if (!fn) {
+ // clear all listeners for a type if function isn't specified
+ delete events[type];
+ delete events[indexKey];
+ delete events[indexLenKey];
+
+ } else {
+ listeners = contextId && typeIndex ? typeIndex[contextId] : events[type];
+
+ if (listeners) {
+ for (j = listeners.length - 1; j >= 0; j--) {
+ if ((listeners[j].action === fn) && (!context || (listeners[j].context === context))) {
+ removed = listeners.splice(j, 1);
+ // set the old action to a no-op, because it is possible
+ // that the listener is being iterated over as part of a dispatch
+ removed[0].action = L.Util.falseFn;
+ }
+ }
+
+ if (context && typeIndex && (listeners.length === 0)) {
+ delete typeIndex[contextId];
+ events[indexLenKey]--;
+ }
+ }
+ }
+ }
+
+ return this;
+ },
+
+ clearAllEventListeners: function () {
+ delete this[eventsKey];
+ return this;
+ },
+
+ fireEvent: function (type, data) { // (String[, Object])
+ if (!this.hasEventListeners(type)) {
+ return this;
+ }
+
+ var event = L.Util.extend({}, data, { type: type, target: this });
+
+ var events = this[eventsKey],
+ listeners, i, len, typeIndex, contextId;
+
+ if (events[type]) {
+ // make sure adding/removing listeners inside other listeners won't cause infinite loop
+ listeners = events[type].slice();
+
+ for (i = 0, len = listeners.length; i < len; i++) {
+ listeners[i].action.call(listeners[i].context, event);
+ }
+ }
+
+ // fire event for the context-indexed listeners as well
+ typeIndex = events[type + '_idx'];
+
+ for (contextId in typeIndex) {
+ listeners = typeIndex[contextId].slice();
+
+ if (listeners) {
+ for (i = 0, len = listeners.length; i < len; i++) {
+ listeners[i].action.call(listeners[i].context, event);
+ }
+ }
+ }
+
+ return this;
+ },
+
+ addOneTimeEventListener: function (types, fn, context) {
+
+ if (L.Util.invokeEach(types, this.addOneTimeEventListener, this, fn, context)) { return this; }
+
+ var handler = L.bind(function () {
+ this
+ .removeEventListener(types, fn, context)
+ .removeEventListener(types, handler, context);
+ }, this);
+
+ return this
+ .addEventListener(types, fn, context)
+ .addEventListener(types, handler, context);
+ }
+};
+
+L.Mixin.Events.on = L.Mixin.Events.addEventListener;
+L.Mixin.Events.off = L.Mixin.Events.removeEventListener;
+L.Mixin.Events.once = L.Mixin.Events.addOneTimeEventListener;
+L.Mixin.Events.fire = L.Mixin.Events.fireEvent;
+
+
+/*
+ * L.Browser handles different browser and feature detections for internal Leaflet use.
+ */
+
+(function () {
+
+ var ie = 'ActiveXObject' in window,
+ ielt9 = ie && !document.addEventListener,
+
+ // terrible browser detection to work around Safari / iOS / Android browser bugs
+ ua = navigator.userAgent.toLowerCase(),
+ webkit = ua.indexOf('webkit') !== -1,
+ chrome = ua.indexOf('chrome') !== -1,
+ phantomjs = ua.indexOf('phantom') !== -1,
+ android = ua.indexOf('android') !== -1,
+ android23 = ua.search('android [23]') !== -1,
+ gecko = ua.indexOf('gecko') !== -1,
+
+ mobile = typeof orientation !== undefined + '',
+ msPointer = window.navigator && window.navigator.msPointerEnabled &&
+ window.navigator.msMaxTouchPoints && !window.PointerEvent,
+ pointer = (window.PointerEvent && window.navigator.pointerEnabled && window.navigator.maxTouchPoints) ||
+ msPointer,
+ retina = ('devicePixelRatio' in window && window.devicePixelRatio > 1) ||
+ ('matchMedia' in window && window.matchMedia('(min-resolution:144dpi)') &&
+ window.matchMedia('(min-resolution:144dpi)').matches),
+
+ doc = document.documentElement,
+ ie3d = ie && ('transition' in doc.style),
+ webkit3d = ('WebKitCSSMatrix' in window) && ('m11' in new window.WebKitCSSMatrix()) && !android23,
+ gecko3d = 'MozPerspective' in doc.style,
+ opera3d = 'OTransition' in doc.style,
+ any3d = !window.L_DISABLE_3D && (ie3d || webkit3d || gecko3d || opera3d) && !phantomjs;
+
+
+ // PhantomJS has 'ontouchstart' in document.documentElement, but doesn't actually support touch.
+ // https://github.com/Leaflet/Leaflet/pull/1434#issuecomment-13843151
+
+ var touch = !window.L_NO_TOUCH && !phantomjs && (function () {
+
+ var startName = 'ontouchstart';
+
+ // IE10+ (We simulate these into touch* events in L.DomEvent and L.DomEvent.Pointer) or WebKit, etc.
+ if (pointer || (startName in doc)) {
+ return true;
+ }
+
+ // Firefox/Gecko
+ var div = document.createElement('div'),
+ supported = false;
+
+ if (!div.setAttribute) {
+ return false;
+ }
+ div.setAttribute(startName, 'return;');
+
+ if (typeof div[startName] === 'function') {
+ supported = true;
+ }
+
+ div.removeAttribute(startName);
+ div = null;
+
+ return supported;
+ }());
+
+
+ L.Browser = {
+ ie: ie,
+ ielt9: ielt9,
+ webkit: webkit,
+ gecko: gecko && !webkit && !window.opera && !ie,
+
+ android: android,
+ android23: android23,
+
+ chrome: chrome,
+
+ ie3d: ie3d,
+ webkit3d: webkit3d,
+ gecko3d: gecko3d,
+ opera3d: opera3d,
+ any3d: any3d,
+
+ mobile: mobile,
+ mobileWebkit: mobile && webkit,
+ mobileWebkit3d: mobile && webkit3d,
+ mobileOpera: mobile && window.opera,
+
+ touch: touch,
+ msPointer: msPointer,
+ pointer: pointer,
+
+ retina: retina
+ };
+
+}());
+
+
+/*
+ * L.Point represents a point with x and y coordinates.
+ */
+
+L.Point = function (/*Number*/ x, /*Number*/ y, /*Boolean*/ round) {
+ this.x = (round ? Math.round(x) : x);
+ this.y = (round ? Math.round(y) : y);
+};
+
+L.Point.prototype = {
+
+ clone: function () {
+ return new L.Point(this.x, this.y);
+ },
+
+ // non-destructive, returns a new point
+ add: function (point) {
+ return this.clone()._add(L.point(point));
+ },
+
+ // destructive, used directly for performance in situations where it's safe to modify existing point
+ _add: function (point) {
+ this.x += point.x;
+ this.y += point.y;
+ return this;
+ },
+
+ subtract: function (point) {
+ return this.clone()._subtract(L.point(point));
+ },
+
+ _subtract: function (point) {
+ this.x -= point.x;
+ this.y -= point.y;
+ return this;
+ },
+
+ divideBy: function (num) {
+ return this.clone()._divideBy(num);
+ },
+
+ _divideBy: function (num) {
+ this.x /= num;
+ this.y /= num;
+ return this;
+ },
+
+ multiplyBy: function (num) {
+ return this.clone()._multiplyBy(num);
+ },
+
+ _multiplyBy: function (num) {
+ this.x *= num;
+ this.y *= num;
+ return this;
+ },
+
+ round: function () {
+ return this.clone()._round();
+ },
+
+ _round: function () {
+ this.x = Math.round(this.x);
+ this.y = Math.round(this.y);
+ return this;
+ },
+
+ floor: function () {
+ return this.clone()._floor();
+ },
+
+ _floor: function () {
+ this.x = Math.floor(this.x);
+ this.y = Math.floor(this.y);
+ return this;
+ },
+
+ distanceTo: function (point) {
+ point = L.point(point);
+
+ var x = point.x - this.x,
+ y = point.y - this.y;
+
+ return Math.sqrt(x * x + y * y);
+ },
+
+ equals: function (point) {
+ point = L.point(point);
+
+ return point.x === this.x &&
+ point.y === this.y;
+ },
+
+ contains: function (point) {
+ point = L.point(point);
+
+ return Math.abs(point.x) <= Math.abs(this.x) &&
+ Math.abs(point.y) <= Math.abs(this.y);
+ },
+
+ toString: function () {
+ return 'Point(' +
+ L.Util.formatNum(this.x) + ', ' +
+ L.Util.formatNum(this.y) + ')';
+ }
+};
+
+L.point = function (x, y, round) {
+ if (x instanceof L.Point) {
+ return x;
+ }
+ if (L.Util.isArray(x)) {
+ return new L.Point(x[0], x[1]);
+ }
+ if (x === undefined || x === null) {
+ return x;
+ }
+ return new L.Point(x, y, round);
+};
+
+
+/*
+ * L.Bounds represents a rectangular area on the screen in pixel coordinates.
+ */
+
+L.Bounds = function (a, b) { //(Point, Point) or Point[]
+ if (!a) { return; }
+
+ var points = b ? [a, b] : a;
+
+ for (var i = 0, len = points.length; i < len; i++) {
+ this.extend(points[i]);
+ }
+};
+
+L.Bounds.prototype = {
+ // extend the bounds to contain the given point
+ extend: function (point) { // (Point)
+ point = L.point(point);
+
+ if (!this.min && !this.max) {
+ this.min = point.clone();
+ this.max = point.clone();
+ } else {
+ this.min.x = Math.min(point.x, this.min.x);
+ this.max.x = Math.max(point.x, this.max.x);
+ this.min.y = Math.min(point.y, this.min.y);
+ this.max.y = Math.max(point.y, this.max.y);
+ }
+ return this;
+ },
+
+ getCenter: function (round) { // (Boolean) -> Point
+ return new L.Point(
+ (this.min.x + this.max.x) / 2,
+ (this.min.y + this.max.y) / 2, round);
+ },
+
+ getBottomLeft: function () { // -> Point
+ return new L.Point(this.min.x, this.max.y);
+ },
+
+ getTopRight: function () { // -> Point
+ return new L.Point(this.max.x, this.min.y);
+ },
+
+ getSize: function () {
+ return this.max.subtract(this.min);
+ },
+
+ contains: function (obj) { // (Bounds) or (Point) -> Boolean
+ var min, max;
+
+ if (typeof obj[0] === 'number' || obj instanceof L.Point) {
+ obj = L.point(obj);
+ } else {
+ obj = L.bounds(obj);
+ }
+
+ if (obj instanceof L.Bounds) {
+ min = obj.min;
+ max = obj.max;
+ } else {
+ min = max = obj;
+ }
+
+ return (min.x >= this.min.x) &&
+ (max.x <= this.max.x) &&
+ (min.y >= this.min.y) &&
+ (max.y <= this.max.y);
+ },
+
+ intersects: function (bounds) { // (Bounds) -> Boolean
+ bounds = L.bounds(bounds);
+
+ var min = this.min,
+ max = this.max,
+ min2 = bounds.min,
+ max2 = bounds.max,
+ xIntersects = (max2.x >= min.x) && (min2.x <= max.x),
+ yIntersects = (max2.y >= min.y) && (min2.y <= max.y);
+
+ return xIntersects && yIntersects;
+ },
+
+ isValid: function () {
+ return !!(this.min && this.max);
+ }
+};
+
+L.bounds = function (a, b) { // (Bounds) or (Point, Point) or (Point[])
+ if (!a || a instanceof L.Bounds) {
+ return a;
+ }
+ return new L.Bounds(a, b);
+};
+
+
+/*
+ * L.Transformation is an utility class to perform simple point transformations through a 2d-matrix.
+ */
+
+L.Transformation = function (a, b, c, d) {
+ this._a = a;
+ this._b = b;
+ this._c = c;
+ this._d = d;
+};
+
+L.Transformation.prototype = {
+ transform: function (point, scale) { // (Point, Number) -> Point
+ return this._transform(point.clone(), scale);
+ },
+
+ // destructive transform (faster)
+ _transform: function (point, scale) {
+ scale = scale || 1;
+ point.x = scale * (this._a * point.x + this._b);
+ point.y = scale * (this._c * point.y + this._d);
+ return point;
+ },
+
+ untransform: function (point, scale) {
+ scale = scale || 1;
+ return new L.Point(
+ (point.x / scale - this._b) / this._a,
+ (point.y / scale - this._d) / this._c);
+ }
+};
+
+
+/*
+ * L.DomUtil contains various utility functions for working with DOM.
+ */
+
+L.DomUtil = {
+ get: function (id) {
+ return (typeof id === 'string' ? document.getElementById(id) : id);
+ },
+
+ getStyle: function (el, style) {
+
+ var value = el.style[style];
+
+ if (!value && el.currentStyle) {
+ value = el.currentStyle[style];
+ }
+
+ if ((!value || value === 'auto') && document.defaultView) {
+ var css = document.defaultView.getComputedStyle(el, null);
+ value = css ? css[style] : null;
+ }
+
+ return value === 'auto' ? null : value;
+ },
+
+ getViewportOffset: function (element) {
+
+ var top = 0,
+ left = 0,
+ el = element,
+ docBody = document.body,
+ docEl = document.documentElement,
+ pos;
+
+ do {
+ top += el.offsetTop || 0;
+ left += el.offsetLeft || 0;
+
+ //add borders
+ top += parseInt(L.DomUtil.getStyle(el, 'borderTopWidth'), 10) || 0;
+ left += parseInt(L.DomUtil.getStyle(el, 'borderLeftWidth'), 10) || 0;
+
+ pos = L.DomUtil.getStyle(el, 'position');
+
+ if (el.offsetParent === docBody && pos === 'absolute') { break; }
+
+ if (pos === 'fixed') {
+ top += docBody.scrollTop || docEl.scrollTop || 0;
+ left += docBody.scrollLeft || docEl.scrollLeft || 0;
+ break;
+ }
+
+ if (pos === 'relative' && !el.offsetLeft) {
+ var width = L.DomUtil.getStyle(el, 'width'),
+ maxWidth = L.DomUtil.getStyle(el, 'max-width'),
+ r = el.getBoundingClientRect();
+
+ if (width !== 'none' || maxWidth !== 'none') {
+ left += r.left + el.clientLeft;
+ }
+
+ //calculate full y offset since we're breaking out of the loop
+ top += r.top + (docBody.scrollTop || docEl.scrollTop || 0);
+
+ break;
+ }
+
+ el = el.offsetParent;
+
+ } while (el);
+
+ el = element;
+
+ do {
+ if (el === docBody) { break; }
+
+ top -= el.scrollTop || 0;
+ left -= el.scrollLeft || 0;
+
+ el = el.parentNode;
+ } while (el);
+
+ return new L.Point(left, top);
+ },
+
+ documentIsLtr: function () {
+ if (!L.DomUtil._docIsLtrCached) {
+ L.DomUtil._docIsLtrCached = true;
+ L.DomUtil._docIsLtr = L.DomUtil.getStyle(document.body, 'direction') === 'ltr';
+ }
+ return L.DomUtil._docIsLtr;
+ },
+
+ create: function (tagName, className, container) {
+
+ var el = document.createElement(tagName);
+ el.className = className;
+
+ if (container) {
+ container.appendChild(el);
+ }
+
+ return el;
+ },
+
+ hasClass: function (el, name) {
+ if (el.classList !== undefined) {
+ return el.classList.contains(name);
+ }
+ var className = L.DomUtil._getClass(el);
+ return className.length > 0 && new RegExp('(^|\\s)' + name + '(\\s|$)').test(className);
+ },
+
+ addClass: function (el, name) {
+ if (el.classList !== undefined) {
+ var classes = L.Util.splitWords(name);
+ for (var i = 0, len = classes.length; i < len; i++) {
+ el.classList.add(classes[i]);
+ }
+ } else if (!L.DomUtil.hasClass(el, name)) {
+ var className = L.DomUtil._getClass(el);
+ L.DomUtil._setClass(el, (className ? className + ' ' : '') + name);
+ }
+ },
+
+ removeClass: function (el, name) {
+ if (el.classList !== undefined) {
+ el.classList.remove(name);
+ } else {
+ L.DomUtil._setClass(el, L.Util.trim((' ' + L.DomUtil._getClass(el) + ' ').replace(' ' + name + ' ', ' ')));
+ }
+ },
+
+ _setClass: function (el, name) {
+ if (el.className.baseVal === undefined) {
+ el.className = name;
+ } else {
+ // in case of SVG element
+ el.className.baseVal = name;
+ }
+ },
+
+ _getClass: function (el) {
+ return el.className.baseVal === undefined ? el.className : el.className.baseVal;
+ },
+
+ setOpacity: function (el, value) {
+
+ if ('opacity' in el.style) {
+ el.style.opacity = value;
+
+ } else if ('filter' in el.style) {
+
+ var filter = false,
+ filterName = 'DXImageTransform.Microsoft.Alpha';
+
+ // filters collection throws an error if we try to retrieve a filter that doesn't exist
+ try {
+ filter = el.filters.item(filterName);
+ } catch (e) {
+ // don't set opacity to 1 if we haven't already set an opacity,
+ // it isn't needed and breaks transparent pngs.
+ if (value === 1) { return; }
+ }
+
+ value = Math.round(value * 100);
+
+ if (filter) {
+ filter.Enabled = (value !== 100);
+ filter.Opacity = value;
+ } else {
+ el.style.filter += ' progid:' + filterName + '(opacity=' + value + ')';
+ }
+ }
+ },
+
+ testProp: function (props) {
+
+ var style = document.documentElement.style;
+
+ for (var i = 0; i < props.length; i++) {
+ if (props[i] in style) {
+ return props[i];
+ }
+ }
+ return false;
+ },
+
+ getTranslateString: function (point) {
+ // on WebKit browsers (Chrome/Safari/iOS Safari/Android) using translate3d instead of translate
+ // makes animation smoother as it ensures HW accel is used. Firefox 13 doesn't care
+ // (same speed either way), Opera 12 doesn't support translate3d
+
+ var is3d = L.Browser.webkit3d,
+ open = 'translate' + (is3d ? '3d' : '') + '(',
+ close = (is3d ? ',0' : '') + ')';
+
+ return open + point.x + 'px,' + point.y + 'px' + close;
+ },
+
+ getScaleString: function (scale, origin) {
+
+ var preTranslateStr = L.DomUtil.getTranslateString(origin.add(origin.multiplyBy(-1 * scale))),
+ scaleStr = ' scale(' + scale + ') ';
+
+ return preTranslateStr + scaleStr;
+ },
+
+ setPosition: function (el, point, disable3D) { // (HTMLElement, Point[, Boolean])
+
+ // jshint camelcase: false
+ el._leaflet_pos = point;
+
+ if (!disable3D && L.Browser.any3d) {
+ el.style[L.DomUtil.TRANSFORM] = L.DomUtil.getTranslateString(point);
+ } else {
+ el.style.left = point.x + 'px';
+ el.style.top = point.y + 'px';
+ }
+ },
+
+ getPosition: function (el) {
+ // this method is only used for elements previously positioned using setPosition,
+ // so it's safe to cache the position for performance
+
+ // jshint camelcase: false
+ return el._leaflet_pos;
+ }
+};
+
+
+// prefix style property names
+
+L.DomUtil.TRANSFORM = L.DomUtil.testProp(
+ ['transform', 'WebkitTransform', 'OTransform', 'MozTransform', 'msTransform']);
+
+// webkitTransition comes first because some browser versions that drop vendor prefix don't do
+// the same for the transitionend event, in particular the Android 4.1 stock browser
+
+L.DomUtil.TRANSITION = L.DomUtil.testProp(
+ ['webkitTransition', 'transition', 'OTransition', 'MozTransition', 'msTransition']);
+
+L.DomUtil.TRANSITION_END =
+ L.DomUtil.TRANSITION === 'webkitTransition' || L.DomUtil.TRANSITION === 'OTransition' ?
+ L.DomUtil.TRANSITION + 'End' : 'transitionend';
+
+(function () {
+ if ('onselectstart' in document) {
+ L.extend(L.DomUtil, {
+ disableTextSelection: function () {
+ L.DomEvent.on(window, 'selectstart', L.DomEvent.preventDefault);
+ },
+
+ enableTextSelection: function () {
+ L.DomEvent.off(window, 'selectstart', L.DomEvent.preventDefault);
+ }
+ });
+ } else {
+ var userSelectProperty = L.DomUtil.testProp(
+ ['userSelect', 'WebkitUserSelect', 'OUserSelect', 'MozUserSelect', 'msUserSelect']);
+
+ L.extend(L.DomUtil, {
+ disableTextSelection: function () {
+ if (userSelectProperty) {
+ var style = document.documentElement.style;
+ this._userSelect = style[userSelectProperty];
+ style[userSelectProperty] = 'none';
+ }
+ },
+
+ enableTextSelection: function () {
+ if (userSelectProperty) {
+ document.documentElement.style[userSelectProperty] = this._userSelect;
+ delete this._userSelect;
+ }
+ }
+ });
+ }
+
+ L.extend(L.DomUtil, {
+ disableImageDrag: function () {
+ L.DomEvent.on(window, 'dragstart', L.DomEvent.preventDefault);
+ },
+
+ enableImageDrag: function () {
+ L.DomEvent.off(window, 'dragstart', L.DomEvent.preventDefault);
+ }
+ });
+})();
+
+
+/*
+ * L.LatLng represents a geographical point with latitude and longitude coordinates.
+ */
+
+L.LatLng = function (lat, lng, alt) { // (Number, Number, Number)
+ lat = parseFloat(lat);
+ lng = parseFloat(lng);
+
+ if (isNaN(lat) || isNaN(lng)) {
+ throw new Error('Invalid LatLng object: (' + lat + ', ' + lng + ')');
+ }
+
+ this.lat = lat;
+ this.lng = lng;
+
+ if (alt !== undefined) {
+ this.alt = parseFloat(alt);
+ }
+};
+
+L.extend(L.LatLng, {
+ DEG_TO_RAD: Math.PI / 180,
+ RAD_TO_DEG: 180 / Math.PI,
+ MAX_MARGIN: 1.0E-9 // max margin of error for the "equals" check
+});
+
+L.LatLng.prototype = {
+ equals: function (obj) { // (LatLng) -> Boolean
+ if (!obj) { return false; }
+
+ obj = L.latLng(obj);
+
+ var margin = Math.max(
+ Math.abs(this.lat - obj.lat),
+ Math.abs(this.lng - obj.lng));
+
+ return margin <= L.LatLng.MAX_MARGIN;
+ },
+
+ toString: function (precision) { // (Number) -> String
+ return 'LatLng(' +
+ L.Util.formatNum(this.lat, precision) + ', ' +
+ L.Util.formatNum(this.lng, precision) + ')';
+ },
+
+ // Haversine distance formula, see http://en.wikipedia.org/wiki/Haversine_formula
+ // TODO move to projection code, LatLng shouldn't know about Earth
+ distanceTo: function (other) { // (LatLng) -> Number
+ other = L.latLng(other);
+
+ var R = 6378137, // earth radius in meters
+ d2r = L.LatLng.DEG_TO_RAD,
+ dLat = (other.lat - this.lat) * d2r,
+ dLon = (other.lng - this.lng) * d2r,
+ lat1 = this.lat * d2r,
+ lat2 = other.lat * d2r,
+ sin1 = Math.sin(dLat / 2),
+ sin2 = Math.sin(dLon / 2);
+
+ var a = sin1 * sin1 + sin2 * sin2 * Math.cos(lat1) * Math.cos(lat2);
+
+ return R * 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));
+ },
+
+ wrap: function (a, b) { // (Number, Number) -> LatLng
+ var lng = this.lng;
+
+ a = a || -180;
+ b = b || 180;
+
+ lng = (lng + b) % (b - a) + (lng < a || lng === b ? b : a);
+
+ return new L.LatLng(this.lat, lng);
+ }
+};
+
+L.latLng = function (a, b) { // (LatLng) or ([Number, Number]) or (Number, Number)
+ if (a instanceof L.LatLng) {
+ return a;
+ }
+ if (L.Util.isArray(a)) {
+ if (typeof a[0] === 'number' || typeof a[0] === 'string') {
+ return new L.LatLng(a[0], a[1], a[2]);
+ } else {
+ return null;
+ }
+ }
+ if (a === undefined || a === null) {
+ return a;
+ }
+ if (typeof a === 'object' && 'lat' in a) {
+ return new L.LatLng(a.lat, 'lng' in a ? a.lng : a.lon);
+ }
+ if (b === undefined) {
+ return null;
+ }
+ return new L.LatLng(a, b);
+};
+
+
+
+/*
+ * L.LatLngBounds represents a rectangular area on the map in geographical coordinates.
+ */
+
+L.LatLngBounds = function (southWest, northEast) { // (LatLng, LatLng) or (LatLng[])
+ if (!southWest) { return; }
+
+ var latlngs = northEast ? [southWest, northEast] : southWest;
+
+ for (var i = 0, len = latlngs.length; i < len; i++) {
+ this.extend(latlngs[i]);
+ }
+};
+
+L.LatLngBounds.prototype = {
+ // extend the bounds to contain the given point or bounds
+ extend: function (obj) { // (LatLng) or (LatLngBounds)
+ if (!obj) { return this; }
+
+ var latLng = L.latLng(obj);
+ if (latLng !== null) {
+ obj = latLng;
+ } else {
+ obj = L.latLngBounds(obj);
+ }
+
+ if (obj instanceof L.LatLng) {
+ if (!this._southWest && !this._northEast) {
+ this._southWest = new L.LatLng(obj.lat, obj.lng);
+ this._northEast = new L.LatLng(obj.lat, obj.lng);
+ } else {
+ this._southWest.lat = Math.min(obj.lat, this._southWest.lat);
+ this._southWest.lng = Math.min(obj.lng, this._southWest.lng);
+
+ this._northEast.lat = Math.max(obj.lat, this._northEast.lat);
+ this._northEast.lng = Math.max(obj.lng, this._northEast.lng);
+ }
+ } else if (obj instanceof L.LatLngBounds) {
+ this.extend(obj._southWest);
+ this.extend(obj._northEast);
+ }
+ return this;
+ },
+
+ // extend the bounds by a percentage
+ pad: function (bufferRatio) { // (Number) -> LatLngBounds
+ var sw = this._southWest,
+ ne = this._northEast,
+ heightBuffer = Math.abs(sw.lat - ne.lat) * bufferRatio,
+ widthBuffer = Math.abs(sw.lng - ne.lng) * bufferRatio;
+
+ return new L.LatLngBounds(
+ new L.LatLng(sw.lat - heightBuffer, sw.lng - widthBuffer),
+ new L.LatLng(ne.lat + heightBuffer, ne.lng + widthBuffer));
+ },
+
+ getCenter: function () { // -> LatLng
+ return new L.LatLng(
+ (this._southWest.lat + this._northEast.lat) / 2,
+ (this._southWest.lng + this._northEast.lng) / 2);
+ },
+
+ getSouthWest: function () {
+ return this._southWest;
+ },
+
+ getNorthEast: function () {
+ return this._northEast;
+ },
+
+ getNorthWest: function () {
+ return new L.LatLng(this.getNorth(), this.getWest());
+ },
+
+ getSouthEast: function () {
+ return new L.LatLng(this.getSouth(), this.getEast());
+ },
+
+ getWest: function () {
+ return this._southWest.lng;
+ },
+
+ getSouth: function () {
+ return this._southWest.lat;
+ },
+
+ getEast: function () {
+ return this._northEast.lng;
+ },
+
+ getNorth: function () {
+ return this._northEast.lat;
+ },
+
+ contains: function (obj) { // (LatLngBounds) or (LatLng) -> Boolean
+ if (typeof obj[0] === 'number' || obj instanceof L.LatLng) {
+ obj = L.latLng(obj);
+ } else {
+ obj = L.latLngBounds(obj);
+ }
+
+ var sw = this._southWest,
+ ne = this._northEast,
+ sw2, ne2;
+
+ if (obj instanceof L.LatLngBounds) {
+ sw2 = obj.getSouthWest();
+ ne2 = obj.getNorthEast();
+ } else {
+ sw2 = ne2 = obj;
+ }
+
+ return (sw2.lat >= sw.lat) && (ne2.lat <= ne.lat) &&
+ (sw2.lng >= sw.lng) && (ne2.lng <= ne.lng);
+ },
+
+ intersects: function (bounds) { // (LatLngBounds)
+ bounds = L.latLngBounds(bounds);
+
+ var sw = this._southWest,
+ ne = this._northEast,
+ sw2 = bounds.getSouthWest(),
+ ne2 = bounds.getNorthEast(),
+
+ latIntersects = (ne2.lat >= sw.lat) && (sw2.lat <= ne.lat),
+ lngIntersects = (ne2.lng >= sw.lng) && (sw2.lng <= ne.lng);
+
+ return latIntersects && lngIntersects;
+ },
+
+ toBBoxString: function () {
+ return [this.getWest(), this.getSouth(), this.getEast(), this.getNorth()].join(',');
+ },
+
+ equals: function (bounds) { // (LatLngBounds)
+ if (!bounds) { return false; }
+
+ bounds = L.latLngBounds(bounds);
+
+ return this._southWest.equals(bounds.getSouthWest()) &&
+ this._northEast.equals(bounds.getNorthEast());
+ },
+
+ isValid: function () {
+ return !!(this._southWest && this._northEast);
+ }
+};
+
+//TODO International date line?
+
+L.latLngBounds = function (a, b) { // (LatLngBounds) or (LatLng, LatLng)
+ if (!a || a instanceof L.LatLngBounds) {
+ return a;
+ }
+ return new L.LatLngBounds(a, b);
+};
+
+
+/*
+ * L.Projection contains various geographical projections used by CRS classes.
+ */
+
+L.Projection = {};
+
+
+/*
+ * Spherical Mercator is the most popular map projection, used by EPSG:3857 CRS used by default.
+ */
+
+L.Projection.SphericalMercator = {
+ MAX_LATITUDE: 85.0511287798,
+
+ project: function (latlng) { // (LatLng) -> Point
+ var d = L.LatLng.DEG_TO_RAD,
+ max = this.MAX_LATITUDE,
+ lat = Math.max(Math.min(max, latlng.lat), -max),
+ x = latlng.lng * d,
+ y = lat * d;
+
+ y = Math.log(Math.tan((Math.PI / 4) + (y / 2)));
+
+ return new L.Point(x, y);
+ },
+
+ unproject: function (point) { // (Point, Boolean) -> LatLng
+ var d = L.LatLng.RAD_TO_DEG,
+ lng = point.x * d,
+ lat = (2 * Math.atan(Math.exp(point.y)) - (Math.PI / 2)) * d;
+
+ return new L.LatLng(lat, lng);
+ }
+};
+
+
+/*
+ * Simple equirectangular (Plate Carree) projection, used by CRS like EPSG:4326 and Simple.
+ */
+
+L.Projection.LonLat = {
+ project: function (latlng) {
+ return new L.Point(latlng.lng, latlng.lat);
+ },
+
+ unproject: function (point) {
+ return new L.LatLng(point.y, point.x);
+ }
+};
+
+
+/*
+ * L.CRS is a base object for all defined CRS (Coordinate Reference Systems) in Leaflet.
+ */
+
+L.CRS = {
+ latLngToPoint: function (latlng, zoom) { // (LatLng, Number) -> Point
+ var projectedPoint = this.projection.project(latlng),
+ scale = this.scale(zoom);
+
+ return this.transformation._transform(projectedPoint, scale);
+ },
+
+ pointToLatLng: function (point, zoom) { // (Point, Number[, Boolean]) -> LatLng
+ var scale = this.scale(zoom),
+ untransformedPoint = this.transformation.untransform(point, scale);
+
+ return this.projection.unproject(untransformedPoint);
+ },
+
+ project: function (latlng) {
+ return this.projection.project(latlng);
+ },
+
+ scale: function (zoom) {
+ return 256 * Math.pow(2, zoom);
+ },
+
+ getSize: function (zoom) {
+ var s = this.scale(zoom);
+ return L.point(s, s);
+ }
+};
+
+
+/*
+ * A simple CRS that can be used for flat non-Earth maps like panoramas or game maps.
+ */
+
+L.CRS.Simple = L.extend({}, L.CRS, {
+ projection: L.Projection.LonLat,
+ transformation: new L.Transformation(1, 0, -1, 0),
+
+ scale: function (zoom) {
+ return Math.pow(2, zoom);
+ }
+});
+
+
+/*
+ * L.CRS.EPSG3857 (Spherical Mercator) is the most common CRS for web mapping
+ * and is used by Leaflet by default.
+ */
+
+L.CRS.EPSG3857 = L.extend({}, L.CRS, {
+ code: 'EPSG:3857',
+
+ projection: L.Projection.SphericalMercator,
+ transformation: new L.Transformation(0.5 / Math.PI, 0.5, -0.5 / Math.PI, 0.5),
+
+ project: function (latlng) { // (LatLng) -> Point
+ var projectedPoint = this.projection.project(latlng),
+ earthRadius = 6378137;
+ return projectedPoint.multiplyBy(earthRadius);
+ }
+});
+
+L.CRS.EPSG900913 = L.extend({}, L.CRS.EPSG3857, {
+ code: 'EPSG:900913'
+});
+
+
+/*
+ * L.CRS.EPSG4326 is a CRS popular among advanced GIS specialists.
+ */
+
+L.CRS.EPSG4326 = L.extend({}, L.CRS, {
+ code: 'EPSG:4326',
+
+ projection: L.Projection.LonLat,
+ transformation: new L.Transformation(1 / 360, 0.5, -1 / 360, 0.5)
+});
+
+
+/*
+ * L.Map is the central class of the API - it is used to create a map.
+ */
+
+L.Map = L.Class.extend({
+
+ includes: L.Mixin.Events,
+
+ options: {
+ crs: L.CRS.EPSG3857,
+
+ /*
+ center: LatLng,
+ zoom: Number,
+ layers: Array,
+ */
+
+ fadeAnimation: L.DomUtil.TRANSITION && !L.Browser.android23,
+ trackResize: true,
+ markerZoomAnimation: L.DomUtil.TRANSITION && L.Browser.any3d
+ },
+
+ initialize: function (id, options) { // (HTMLElement or String, Object)
+ options = L.setOptions(this, options);
+
+
+ this._initContainer(id);
+ this._initLayout();
+
+ // hack for https://github.com/Leaflet/Leaflet/issues/1980
+ this._onResize = L.bind(this._onResize, this);
+
+ this._initEvents();
+
+ if (options.maxBounds) {
+ this.setMaxBounds(options.maxBounds);
+ }
+
+ if (options.center && options.zoom !== undefined) {
+ this.setView(L.latLng(options.center), options.zoom, {reset: true});
+ }
+
+ this._handlers = [];
+
+ this._layers = {};
+ this._zoomBoundLayers = {};
+ this._tileLayersNum = 0;
+
+ this.callInitHooks();
+
+ this._addLayers(options.layers);
+ },
+
+
+ // public methods that modify map state
+
+ // replaced by animation-powered implementation in Map.PanAnimation.js
+ setView: function (center, zoom) {
+ zoom = zoom === undefined ? this.getZoom() : zoom;
+ this._resetView(L.latLng(center), this._limitZoom(zoom));
+ return this;
+ },
+
+ setZoom: function (zoom, options) {
+ if (!this._loaded) {
+ this._zoom = this._limitZoom(zoom);
+ return this;
+ }
+ return this.setView(this.getCenter(), zoom, {zoom: options});
+ },
+
+ zoomIn: function (delta, options) {
+ return this.setZoom(this._zoom + (delta || 1), options);
+ },
+
+ zoomOut: function (delta, options) {
+ return this.setZoom(this._zoom - (delta || 1), options);
+ },
+
+ setZoomAround: function (latlng, zoom, options) {
+ var scale = this.getZoomScale(zoom),
+ viewHalf = this.getSize().divideBy(2),
+ containerPoint = latlng instanceof L.Point ? latlng : this.latLngToContainerPoint(latlng),
+
+ centerOffset = containerPoint.subtract(viewHalf).multiplyBy(1 - 1 / scale),
+ newCenter = this.containerPointToLatLng(viewHalf.add(centerOffset));
+
+ return this.setView(newCenter, zoom, {zoom: options});
+ },
+
+ fitBounds: function (bounds, options) {
+
+ options = options || {};
+ bounds = bounds.getBounds ? bounds.getBounds() : L.latLngBounds(bounds);
+
+ var paddingTL = L.point(options.paddingTopLeft || options.padding || [0, 0]),
+ paddingBR = L.point(options.paddingBottomRight || options.padding || [0, 0]),
+
+ zoom = this.getBoundsZoom(bounds, false, paddingTL.add(paddingBR)),
+ paddingOffset = paddingBR.subtract(paddingTL).divideBy(2),
+
+ swPoint = this.project(bounds.getSouthWest(), zoom),
+ nePoint = this.project(bounds.getNorthEast(), zoom),
+ center = this.unproject(swPoint.add(nePoint).divideBy(2).add(paddingOffset), zoom);
+
+ zoom = options && options.maxZoom ? Math.min(options.maxZoom, zoom) : zoom;
+
+ return this.setView(center, zoom, options);
+ },
+
+ fitWorld: function (options) {
+ return this.fitBounds([[-90, -180], [90, 180]], options);
+ },
+
+ panTo: function (center, options) { // (LatLng)
+ return this.setView(center, this._zoom, {pan: options});
+ },
+
+ panBy: function (offset) { // (Point)
+ // replaced with animated panBy in Map.PanAnimation.js
+ this.fire('movestart');
+
+ this._rawPanBy(L.point(offset));
+
+ this.fire('move');
+ return this.fire('moveend');
+ },
+
+ setMaxBounds: function (bounds) {
+ bounds = L.latLngBounds(bounds);
+
+ this.options.maxBounds = bounds;
+
+ if (!bounds) {
+ return this.off('moveend', this._panInsideMaxBounds, this);
+ }
+
+ if (this._loaded) {
+ this._panInsideMaxBounds();
+ }
+
+ return this.on('moveend', this._panInsideMaxBounds, this);
+ },
+
+ panInsideBounds: function (bounds, options) {
+ var center = this.getCenter(),
+ newCenter = this._limitCenter(center, this._zoom, bounds);
+
+ if (center.equals(newCenter)) { return this; }
+
+ return this.panTo(newCenter, options);
+ },
+
+ addLayer: function (layer) {
+ // TODO method is too big, refactor
+
+ var id = L.stamp(layer);
+
+ if (this._layers[id]) { return this; }
+
+ this._layers[id] = layer;
+
+ // TODO getMaxZoom, getMinZoom in ILayer (instead of options)
+ if (layer.options && (!isNaN(layer.options.maxZoom) || !isNaN(layer.options.minZoom))) {
+ this._zoomBoundLayers[id] = layer;
+ this._updateZoomLevels();
+ }
+
+ // TODO looks ugly, refactor!!!
+ if (this.options.zoomAnimation && L.TileLayer && (layer instanceof L.TileLayer)) {
+ this._tileLayersNum++;
+ this._tileLayersToLoad++;
+ layer.on('load', this._onTileLayerLoad, this);
+ }
+
+ if (this._loaded) {
+ this._layerAdd(layer);
+ }
+
+ return this;
+ },
+
+ removeLayer: function (layer) {
+ var id = L.stamp(layer);
+
+ if (!this._layers[id]) { return this; }
+
+ if (this._loaded) {
+ layer.onRemove(this);
+ }
+
+ delete this._layers[id];
+
+ if (this._loaded) {
+ this.fire('layerremove', {layer: layer});
+ }
+
+ if (this._zoomBoundLayers[id]) {
+ delete this._zoomBoundLayers[id];
+ this._updateZoomLevels();
+ }
+
+ // TODO looks ugly, refactor
+ if (this.options.zoomAnimation && L.TileLayer && (layer instanceof L.TileLayer)) {
+ this._tileLayersNum--;
+ this._tileLayersToLoad--;
+ layer.off('load', this._onTileLayerLoad, this);
+ }
+
+ return this;
+ },
+
+ hasLayer: function (layer) {
+ if (!layer) { return false; }
+
+ return (L.stamp(layer) in this._layers);
+ },
+
+ eachLayer: function (method, context) {
+ for (var i in this._layers) {
+ method.call(context, this._layers[i]);
+ }
+ return this;
+ },
+
+ invalidateSize: function (options) {
+ if (!this._loaded) { return this; }
+
+ options = L.extend({
+ animate: false,
+ pan: true
+ }, options === true ? {animate: true} : options);
+
+ var oldSize = this.getSize();
+ this._sizeChanged = true;
+ this._initialCenter = null;
+
+ var newSize = this.getSize(),
+ oldCenter = oldSize.divideBy(2).round(),
+ newCenter = newSize.divideBy(2).round(),
+ offset = oldCenter.subtract(newCenter);
+
+ if (!offset.x && !offset.y) { return this; }
+
+ if (options.animate && options.pan) {
+ this.panBy(offset);
+
+ } else {
+ if (options.pan) {
+ this._rawPanBy(offset);
+ }
+
+ this.fire('move');
+
+ if (options.debounceMoveend) {
+ clearTimeout(this._sizeTimer);
+ this._sizeTimer = setTimeout(L.bind(this.fire, this, 'moveend'), 200);
+ } else {
+ this.fire('moveend');
+ }
+ }
+
+ return this.fire('resize', {
+ oldSize: oldSize,
+ newSize: newSize
+ });
+ },
+
+ // TODO handler.addTo
+ addHandler: function (name, HandlerClass) {
+ if (!HandlerClass) { return this; }
+
+ var handler = this[name] = new HandlerClass(this);
+
+ this._handlers.push(handler);
+
+ if (this.options[name]) {
+ handler.enable();
+ }
+
+ return this;
+ },
+
+ remove: function () {
+ if (this._loaded) {
+ this.fire('unload');
+ }
+
+ this._initEvents('off');
+
+ try {
+ // throws error in IE6-8
+ delete this._container._leaflet;
+ } catch (e) {
+ this._container._leaflet = undefined;
+ }
+
+ this._clearPanes();
+ if (this._clearControlPos) {
+ this._clearControlPos();
+ }
+
+ this._clearHandlers();
+
+ return this;
+ },
+
+
+ // public methods for getting map state
+
+ getCenter: function () { // (Boolean) -> LatLng
+ this._checkIfLoaded();
+
+ if (this._initialCenter && !this._moved()) {
+ return this._initialCenter;
+ }
+ return this.layerPointToLatLng(this._getCenterLayerPoint());
+ },
+
+ getZoom: function () {
+ return this._zoom;
+ },
+
+ getBounds: function () {
+ var bounds = this.getPixelBounds(),
+ sw = this.unproject(bounds.getBottomLeft()),
+ ne = this.unproject(bounds.getTopRight());
+
+ return new L.LatLngBounds(sw, ne);
+ },
+
+ getMinZoom: function () {
+ return this.options.minZoom === undefined ?
+ (this._layersMinZoom === undefined ? 0 : this._layersMinZoom) :
+ this.options.minZoom;
+ },
+
+ getMaxZoom: function () {
+ return this.options.maxZoom === undefined ?
+ (this._layersMaxZoom === undefined ? Infinity : this._layersMaxZoom) :
+ this.options.maxZoom;
+ },
+
+ getBoundsZoom: function (bounds, inside, padding) { // (LatLngBounds[, Boolean, Point]) -> Number
+ bounds = L.latLngBounds(bounds);
+
+ var zoom = this.getMinZoom() - (inside ? 1 : 0),
+ maxZoom = this.getMaxZoom(),
+ size = this.getSize(),
+
+ nw = bounds.getNorthWest(),
+ se = bounds.getSouthEast(),
+
+ zoomNotFound = true,
+ boundsSize;
+
+ padding = L.point(padding || [0, 0]);
+
+ do {
+ zoom++;
+ boundsSize = this.project(se, zoom).subtract(this.project(nw, zoom)).add(padding);
+ zoomNotFound = !inside ? size.contains(boundsSize) : boundsSize.x < size.x || boundsSize.y < size.y;
+
+ } while (zoomNotFound && zoom <= maxZoom);
+
+ if (zoomNotFound && inside) {
+ return null;
+ }
+
+ return inside ? zoom : zoom - 1;
+ },
+
+ getSize: function () {
+ if (!this._size || this._sizeChanged) {
+ this._size = new L.Point(
+ this._container.clientWidth,
+ this._container.clientHeight);
+
+ this._sizeChanged = false;
+ }
+ return this._size.clone();
+ },
+
+ getPixelBounds: function () {
+ var topLeftPoint = this._getTopLeftPoint();
+ return new L.Bounds(topLeftPoint, topLeftPoint.add(this.getSize()));
+ },
+
+ getPixelOrigin: function () {
+ this._checkIfLoaded();
+ return this._initialTopLeftPoint;
+ },
+
+ getPanes: function () {
+ return this._panes;
+ },
+
+ getContainer: function () {
+ return this._container;
+ },
+
+
+ // TODO replace with universal implementation after refactoring projections
+
+ getZoomScale: function (toZoom) {
+ var crs = this.options.crs;
+ return crs.scale(toZoom) / crs.scale(this._zoom);
+ },
+
+ getScaleZoom: function (scale) {
+ return this._zoom + (Math.log(scale) / Math.LN2);
+ },
+
+
+ // conversion methods
+
+ project: function (latlng, zoom) { // (LatLng[, Number]) -> Point
+ zoom = zoom === undefined ? this._zoom : zoom;
+ return this.options.crs.latLngToPoint(L.latLng(latlng), zoom);
+ },
+
+ unproject: function (point, zoom) { // (Point[, Number]) -> LatLng
+ zoom = zoom === undefined ? this._zoom : zoom;
+ return this.options.crs.pointToLatLng(L.point(point), zoom);
+ },
+
+ layerPointToLatLng: function (point) { // (Point)
+ var projectedPoint = L.point(point).add(this.getPixelOrigin());
+ return this.unproject(projectedPoint);
+ },
+
+ latLngToLayerPoint: function (latlng) { // (LatLng)
+ var projectedPoint = this.project(L.latLng(latlng))._round();
+ return projectedPoint._subtract(this.getPixelOrigin());
+ },
+
+ containerPointToLayerPoint: function (point) { // (Point)
+ return L.point(point).subtract(this._getMapPanePos());
+ },
+
+ layerPointToContainerPoint: function (point) { // (Point)
+ return L.point(point).add(this._getMapPanePos());
+ },
+
+ containerPointToLatLng: function (point) {
+ var layerPoint = this.containerPointToLayerPoint(L.point(point));
+ return this.layerPointToLatLng(layerPoint);
+ },
+
+ latLngToContainerPoint: function (latlng) {
+ return this.layerPointToContainerPoint(this.latLngToLayerPoint(L.latLng(latlng)));
+ },
+
+ mouseEventToContainerPoint: function (e) { // (MouseEvent)
+ return L.DomEvent.getMousePosition(e, this._container);
+ },
+
+ mouseEventToLayerPoint: function (e) { // (MouseEvent)
+ return this.containerPointToLayerPoint(this.mouseEventToContainerPoint(e));
+ },
+
+ mouseEventToLatLng: function (e) { // (MouseEvent)
+ return this.layerPointToLatLng(this.mouseEventToLayerPoint(e));
+ },
+
+
+ // map initialization methods
+
+ _initContainer: function (id) {
+ var container = this._container = L.DomUtil.get(id);
+
+ if (!container) {
+ throw new Error('Map container not found.');
+ } else if (container._leaflet) {
+ throw new Error('Map container is already initialized.');
+ }
+
+ container._leaflet = true;
+ },
+
+ _initLayout: function () {
+ var container = this._container;
+
+ L.DomUtil.addClass(container, 'leaflet-container' +
+ (L.Browser.touch ? ' leaflet-touch' : '') +
+ (L.Browser.retina ? ' leaflet-retina' : '') +
+ (L.Browser.ielt9 ? ' leaflet-oldie' : '') +
+ (this.options.fadeAnimation ? ' leaflet-fade-anim' : ''));
+
+ var position = L.DomUtil.getStyle(container, 'position');
+
+ if (position !== 'absolute' && position !== 'relative' && position !== 'fixed') {
+ container.style.position = 'relative';
+ }
+
+ this._initPanes();
+
+ if (this._initControlPos) {
+ this._initControlPos();
+ }
+ },
+
+ _initPanes: function () {
+ var panes = this._panes = {};
+
+ this._mapPane = panes.mapPane = this._createPane('leaflet-map-pane', this._container);
+
+ this._tilePane = panes.tilePane = this._createPane('leaflet-tile-pane', this._mapPane);
+ panes.objectsPane = this._createPane('leaflet-objects-pane', this._mapPane);
+ panes.shadowPane = this._createPane('leaflet-shadow-pane');
+ panes.overlayPane = this._createPane('leaflet-overlay-pane');
+ panes.markerPane = this._createPane('leaflet-marker-pane');
+ panes.popupPane = this._createPane('leaflet-popup-pane');
+
+ var zoomHide = ' leaflet-zoom-hide';
+
+ if (!this.options.markerZoomAnimation) {
+ L.DomUtil.addClass(panes.markerPane, zoomHide);
+ L.DomUtil.addClass(panes.shadowPane, zoomHide);
+ L.DomUtil.addClass(panes.popupPane, zoomHide);
+ }
+ },
+
+ _createPane: function (className, container) {
+ return L.DomUtil.create('div', className, container || this._panes.objectsPane);
+ },
+
+ _clearPanes: function () {
+ this._container.removeChild(this._mapPane);
+ },
+
+ _addLayers: function (layers) {
+ layers = layers ? (L.Util.isArray(layers) ? layers : [layers]) : [];
+
+ for (var i = 0, len = layers.length; i < len; i++) {
+ this.addLayer(layers[i]);
+ }
+ },
+
+
+ // private methods that modify map state
+
+ _resetView: function (center, zoom, preserveMapOffset, afterZoomAnim) {
+
+ var zoomChanged = (this._zoom !== zoom);
+
+ if (!afterZoomAnim) {
+ this.fire('movestart');
+
+ if (zoomChanged) {
+ this.fire('zoomstart');
+ }
+ }
+
+ this._zoom = zoom;
+ this._initialCenter = center;
+
+ this._initialTopLeftPoint = this._getNewTopLeftPoint(center);
+
+ if (!preserveMapOffset) {
+ L.DomUtil.setPosition(this._mapPane, new L.Point(0, 0));
+ } else {
+ this._initialTopLeftPoint._add(this._getMapPanePos());
+ }
+
+ this._tileLayersToLoad = this._tileLayersNum;
+
+ var loading = !this._loaded;
+ this._loaded = true;
+
+ if (loading) {
+ this.fire('load');
+ this.eachLayer(this._layerAdd, this);
+ }
+
+ this.fire('viewreset', {hard: !preserveMapOffset});
+
+ this.fire('move');
+
+ if (zoomChanged || afterZoomAnim) {
+ this.fire('zoomend');
+ }
+
+ this.fire('moveend', {hard: !preserveMapOffset});
+ },
+
+ _rawPanBy: function (offset) {
+ L.DomUtil.setPosition(this._mapPane, this._getMapPanePos().subtract(offset));
+ },
+
+ _getZoomSpan: function () {
+ return this.getMaxZoom() - this.getMinZoom();
+ },
+
+ _updateZoomLevels: function () {
+ var i,
+ minZoom = Infinity,
+ maxZoom = -Infinity,
+ oldZoomSpan = this._getZoomSpan();
+
+ for (i in this._zoomBoundLayers) {
+ var layer = this._zoomBoundLayers[i];
+ if (!isNaN(layer.options.minZoom)) {
+ minZoom = Math.min(minZoom, layer.options.minZoom);
+ }
+ if (!isNaN(layer.options.maxZoom)) {
+ maxZoom = Math.max(maxZoom, layer.options.maxZoom);
+ }
+ }
+
+ if (i === undefined) { // we have no tilelayers
+ this._layersMaxZoom = this._layersMinZoom = undefined;
+ } else {
+ this._layersMaxZoom = maxZoom;
+ this._layersMinZoom = minZoom;
+ }
+
+ if (oldZoomSpan !== this._getZoomSpan()) {
+ this.fire('zoomlevelschange');
+ }
+ },
+
+ _panInsideMaxBounds: function () {
+ this.panInsideBounds(this.options.maxBounds);
+ },
+
+ _checkIfLoaded: function () {
+ if (!this._loaded) {
+ throw new Error('Set map center and zoom first.');
+ }
+ },
+
+ // map events
+
+ _initEvents: function (onOff) {
+ if (!L.DomEvent) { return; }
+
+ onOff = onOff || 'on';
+
+ L.DomEvent[onOff](this._container, 'click', this._onMouseClick, this);
+
+ var events = ['dblclick', 'mousedown', 'mouseup', 'mouseenter',
+ 'mouseleave', 'mousemove', 'contextmenu'],
+ i, len;
+
+ for (i = 0, len = events.length; i < len; i++) {
+ L.DomEvent[onOff](this._container, events[i], this._fireMouseEvent, this);
+ }
+
+ if (this.options.trackResize) {
+ L.DomEvent[onOff](window, 'resize', this._onResize, this);
+ }
+ },
+
+ _onResize: function () {
+ L.Util.cancelAnimFrame(this._resizeRequest);
+ this._resizeRequest = L.Util.requestAnimFrame(
+ function () { this.invalidateSize({debounceMoveend: true}); }, this, false, this._container);
+ },
+
+ _onMouseClick: function (e) {
+ if (!this._loaded || (!e._simulated &&
+ ((this.dragging && this.dragging.moved()) ||
+ (this.boxZoom && this.boxZoom.moved()))) ||
+ L.DomEvent._skipped(e)) { return; }
+
+ this.fire('preclick');
+ this._fireMouseEvent(e);
+ },
+
+ _fireMouseEvent: function (e) {
+ if (!this._loaded || L.DomEvent._skipped(e)) { return; }
+
+ var type = e.type;
+
+ type = (type === 'mouseenter' ? 'mouseover' : (type === 'mouseleave' ? 'mouseout' : type));
+
+ if (!this.hasEventListeners(type)) { return; }
+
+ if (type === 'contextmenu') {
+ L.DomEvent.preventDefault(e);
+ }
+
+ var containerPoint = this.mouseEventToContainerPoint(e),
+ layerPoint = this.containerPointToLayerPoint(containerPoint),
+ latlng = this.layerPointToLatLng(layerPoint);
+
+ this.fire(type, {
+ latlng: latlng,
+ layerPoint: layerPoint,
+ containerPoint: containerPoint,
+ originalEvent: e
+ });
+ },
+
+ _onTileLayerLoad: function () {
+ this._tileLayersToLoad--;
+ if (this._tileLayersNum && !this._tileLayersToLoad) {
+ this.fire('tilelayersload');
+ }
+ },
+
+ _clearHandlers: function () {
+ for (var i = 0, len = this._handlers.length; i < len; i++) {
+ this._handlers[i].disable();
+ }
+ },
+
+ whenReady: function (callback, context) {
+ if (this._loaded) {
+ callback.call(context || this, this);
+ } else {
+ this.on('load', callback, context);
+ }
+ return this;
+ },
+
+ _layerAdd: function (layer) {
+ layer.onAdd(this);
+ this.fire('layeradd', {layer: layer});
+ },
+
+
+ // private methods for getting map state
+
+ _getMapPanePos: function () {
+ return L.DomUtil.getPosition(this._mapPane);
+ },
+
+ _moved: function () {
+ var pos = this._getMapPanePos();
+ return pos && !pos.equals([0, 0]);
+ },
+
+ _getTopLeftPoint: function () {
+ return this.getPixelOrigin().subtract(this._getMapPanePos());
+ },
+
+ _getNewTopLeftPoint: function (center, zoom) {
+ var viewHalf = this.getSize()._divideBy(2);
+ // TODO round on display, not calculation to increase precision?
+ return this.project(center, zoom)._subtract(viewHalf)._round();
+ },
+
+ _latLngToNewLayerPoint: function (latlng, newZoom, newCenter) {
+ var topLeft = this._getNewTopLeftPoint(newCenter, newZoom).add(this._getMapPanePos());
+ return this.project(latlng, newZoom)._subtract(topLeft);
+ },
+
+ // layer point of the current center
+ _getCenterLayerPoint: function () {
+ return this.containerPointToLayerPoint(this.getSize()._divideBy(2));
+ },
+
+ // offset of the specified place to the current center in pixels
+ _getCenterOffset: function (latlng) {
+ return this.latLngToLayerPoint(latlng).subtract(this._getCenterLayerPoint());
+ },
+
+ // adjust center for view to get inside bounds
+ _limitCenter: function (center, zoom, bounds) {
+
+ if (!bounds) { return center; }
+
+ var centerPoint = this.project(center, zoom),
+ viewHalf = this.getSize().divideBy(2),
+ viewBounds = new L.Bounds(centerPoint.subtract(viewHalf), centerPoint.add(viewHalf)),
+ offset = this._getBoundsOffset(viewBounds, bounds, zoom);
+
+ return this.unproject(centerPoint.add(offset), zoom);
+ },
+
+ // adjust offset for view to get inside bounds
+ _limitOffset: function (offset, bounds) {
+ if (!bounds) { return offset; }
+
+ var viewBounds = this.getPixelBounds(),
+ newBounds = new L.Bounds(viewBounds.min.add(offset), viewBounds.max.add(offset));
+
+ return offset.add(this._getBoundsOffset(newBounds, bounds));
+ },
+
+ // returns offset needed for pxBounds to get inside maxBounds at a specified zoom
+ _getBoundsOffset: function (pxBounds, maxBounds, zoom) {
+ var nwOffset = this.project(maxBounds.getNorthWest(), zoom).subtract(pxBounds.min),
+ seOffset = this.project(maxBounds.getSouthEast(), zoom).subtract(pxBounds.max),
+
+ dx = this._rebound(nwOffset.x, -seOffset.x),
+ dy = this._rebound(nwOffset.y, -seOffset.y);
+
+ return new L.Point(dx, dy);
+ },
+
+ _rebound: function (left, right) {
+ return left + right > 0 ?
+ Math.round(left - right) / 2 :
+ Math.max(0, Math.ceil(left)) - Math.max(0, Math.floor(right));
+ },
+
+ _limitZoom: function (zoom) {
+ var min = this.getMinZoom(),
+ max = this.getMaxZoom();
+
+ return Math.max(min, Math.min(max, zoom));
+ }
+});
+
+L.map = function (id, options) {
+ return new L.Map(id, options);
+};
+
+
+/*
+ * Mercator projection that takes into account that the Earth is not a perfect sphere.
+ * Less popular than spherical mercator; used by projections like EPSG:3395.
+ */
+
+L.Projection.Mercator = {
+ MAX_LATITUDE: 85.0840591556,
+
+ R_MINOR: 6356752.314245179,
+ R_MAJOR: 6378137,
+
+ project: function (latlng) { // (LatLng) -> Point
+ var d = L.LatLng.DEG_TO_RAD,
+ max = this.MAX_LATITUDE,
+ lat = Math.max(Math.min(max, latlng.lat), -max),
+ r = this.R_MAJOR,
+ r2 = this.R_MINOR,
+ x = latlng.lng * d * r,
+ y = lat * d,
+ tmp = r2 / r,
+ eccent = Math.sqrt(1.0 - tmp * tmp),
+ con = eccent * Math.sin(y);
+
+ con = Math.pow((1 - con) / (1 + con), eccent * 0.5);
+
+ var ts = Math.tan(0.5 * ((Math.PI * 0.5) - y)) / con;
+ y = -r * Math.log(ts);
+
+ return new L.Point(x, y);
+ },
+
+ unproject: function (point) { // (Point, Boolean) -> LatLng
+ var d = L.LatLng.RAD_TO_DEG,
+ r = this.R_MAJOR,
+ r2 = this.R_MINOR,
+ lng = point.x * d / r,
+ tmp = r2 / r,
+ eccent = Math.sqrt(1 - (tmp * tmp)),
+ ts = Math.exp(- point.y / r),
+ phi = (Math.PI / 2) - 2 * Math.atan(ts),
+ numIter = 15,
+ tol = 1e-7,
+ i = numIter,
+ dphi = 0.1,
+ con;
+
+ while ((Math.abs(dphi) > tol) && (--i > 0)) {
+ con = eccent * Math.sin(phi);
+ dphi = (Math.PI / 2) - 2 * Math.atan(ts *
+ Math.pow((1.0 - con) / (1.0 + con), 0.5 * eccent)) - phi;
+ phi += dphi;
+ }
+
+ return new L.LatLng(phi * d, lng);
+ }
+};
+
+
+
+L.CRS.EPSG3395 = L.extend({}, L.CRS, {
+ code: 'EPSG:3395',
+
+ projection: L.Projection.Mercator,
+
+ transformation: (function () {
+ var m = L.Projection.Mercator,
+ r = m.R_MAJOR,
+ scale = 0.5 / (Math.PI * r);
+
+ return new L.Transformation(scale, 0.5, -scale, 0.5);
+ }())
+});
+
+
+/*
+ * L.TileLayer is used for standard xyz-numbered tile layers.
+ */
+
+L.TileLayer = L.Class.extend({
+ includes: L.Mixin.Events,
+
+ options: {
+ minZoom: 0,
+ maxZoom: 18,
+ tileSize: 256,
+ subdomains: 'abc',
+ errorTileUrl: '',
+ attribution: '',
+ zoomOffset: 0,
+ opacity: 1,
+ /*
+ maxNativeZoom: null,
+ zIndex: null,
+ tms: false,
+ continuousWorld: false,
+ noWrap: false,
+ zoomReverse: false,
+ detectRetina: false,
+ reuseTiles: false,
+ bounds: false,
+ */
+ unloadInvisibleTiles: L.Browser.mobile,
+ updateWhenIdle: L.Browser.mobile
+ },
+
+ initialize: function (url, options) {
+ options = L.setOptions(this, options);
+
+ // detecting retina displays, adjusting tileSize and zoom levels
+ if (options.detectRetina && L.Browser.retina && options.maxZoom > 0) {
+
+ options.tileSize = Math.floor(options.tileSize / 2);
+ options.zoomOffset++;
+
+ if (options.minZoom > 0) {
+ options.minZoom--;
+ }
+ this.options.maxZoom--;
+ }
+
+ if (options.bounds) {
+ options.bounds = L.latLngBounds(options.bounds);
+ }
+
+ this._url = url;
+
+ var subdomains = this.options.subdomains;
+
+ if (typeof subdomains === 'string') {
+ this.options.subdomains = subdomains.split('');
+ }
+ },
+
+ onAdd: function (map) {
+ this._map = map;
+ this._animated = map._zoomAnimated;
+
+ // create a container div for tiles
+ this._initContainer();
+
+ // set up events
+ map.on({
+ 'viewreset': this._reset,
+ 'moveend': this._update
+ }, this);
+
+ if (this._animated) {
+ map.on({
+ 'zoomanim': this._animateZoom,
+ 'zoomend': this._endZoomAnim
+ }, this);
+ }
+
+ if (!this.options.updateWhenIdle) {
+ this._limitedUpdate = L.Util.limitExecByInterval(this._update, 150, this);
+ map.on('move', this._limitedUpdate, this);
+ }
+
+ this._reset();
+ this._update();
+ },
+
+ addTo: function (map) {
+ map.addLayer(this);
+ return this;
+ },
+
+ onRemove: function (map) {
+ this._container.parentNode.removeChild(this._container);
+
+ map.off({
+ 'viewreset': this._reset,
+ 'moveend': this._update
+ }, this);
+
+ if (this._animated) {
+ map.off({
+ 'zoomanim': this._animateZoom,
+ 'zoomend': this._endZoomAnim
+ }, this);
+ }
+
+ if (!this.options.updateWhenIdle) {
+ map.off('move', this._limitedUpdate, this);
+ }
+
+ this._container = null;
+ this._map = null;
+ },
+
+ bringToFront: function () {
+ var pane = this._map._panes.tilePane;
+
+ if (this._container) {
+ pane.appendChild(this._container);
+ this._setAutoZIndex(pane, Math.max);
+ }
+
+ return this;
+ },
+
+ bringToBack: function () {
+ var pane = this._map._panes.tilePane;
+
+ if (this._container) {
+ pane.insertBefore(this._container, pane.firstChild);
+ this._setAutoZIndex(pane, Math.min);
+ }
+
+ return this;
+ },
+
+ getAttribution: function () {
+ return this.options.attribution;
+ },
+
+ getContainer: function () {
+ return this._container;
+ },
+
+ setOpacity: function (opacity) {
+ this.options.opacity = opacity;
+
+ if (this._map) {
+ this._updateOpacity();
+ }
+
+ return this;
+ },
+
+ setZIndex: function (zIndex) {
+ this.options.zIndex = zIndex;
+ this._updateZIndex();
+
+ return this;
+ },
+
+ setUrl: function (url, noRedraw) {
+ this._url = url;
+
+ if (!noRedraw) {
+ this.redraw();
+ }
+
+ return this;
+ },
+
+ redraw: function () {
+ if (this._map) {
+ this._reset({hard: true});
+ this._update();
+ }
+ return this;
+ },
+
+ _updateZIndex: function () {
+ if (this._container && this.options.zIndex !== undefined) {
+ this._container.style.zIndex = this.options.zIndex;
+ }
+ },
+
+ _setAutoZIndex: function (pane, compare) {
+
+ var layers = pane.children,
+ edgeZIndex = -compare(Infinity, -Infinity), // -Infinity for max, Infinity for min
+ zIndex, i, len;
+
+ for (i = 0, len = layers.length; i < len; i++) {
+
+ if (layers[i] !== this._container) {
+ zIndex = parseInt(layers[i].style.zIndex, 10);
+
+ if (!isNaN(zIndex)) {
+ edgeZIndex = compare(edgeZIndex, zIndex);
+ }
+ }
+ }
+
+ this.options.zIndex = this._container.style.zIndex =
+ (isFinite(edgeZIndex) ? edgeZIndex : 0) + compare(1, -1);
+ },
+
+ _updateOpacity: function () {
+ var i,
+ tiles = this._tiles;
+
+ if (L.Browser.ielt9) {
+ for (i in tiles) {
+ L.DomUtil.setOpacity(tiles[i], this.options.opacity);
+ }
+ } else {
+ L.DomUtil.setOpacity(this._container, this.options.opacity);
+ }
+ },
+
+ _initContainer: function () {
+ var tilePane = this._map._panes.tilePane;
+
+ if (!this._container) {
+ this._container = L.DomUtil.create('div', 'leaflet-layer');
+
+ this._updateZIndex();
+
+ if (this._animated) {
+ var className = 'leaflet-tile-container';
+
+ this._bgBuffer = L.DomUtil.create('div', className, this._container);
+ this._tileContainer = L.DomUtil.create('div', className, this._container);
+
+ } else {
+ this._tileContainer = this._container;
+ }
+
+ tilePane.appendChild(this._container);
+
+ if (this.options.opacity < 1) {
+ this._updateOpacity();
+ }
+ }
+ },
+
+ _reset: function (e) {
+ for (var key in this._tiles) {
+ this.fire('tileunload', {tile: this._tiles[key]});
+ }
+
+ this._tiles = {};
+ this._tilesToLoad = 0;
+
+ if (this.options.reuseTiles) {
+ this._unusedTiles = [];
+ }
+
+ this._tileContainer.innerHTML = '';
+
+ if (this._animated && e && e.hard) {
+ this._clearBgBuffer();
+ }
+
+ this._initContainer();
+ },
+
+ _getTileSize: function () {
+ var map = this._map,
+ zoom = map.getZoom() + this.options.zoomOffset,
+ zoomN = this.options.maxNativeZoom,
+ tileSize = this.options.tileSize;
+
+ if (zoomN && zoom > zoomN) {
+ tileSize = Math.round(map.getZoomScale(zoom) / map.getZoomScale(zoomN) * tileSize);
+ }
+
+ return tileSize;
+ },
+
+ _update: function () {
+
+ if (!this._map) { return; }
+
+ var map = this._map,
+ bounds = map.getPixelBounds(),
+ zoom = map.getZoom(),
+ tileSize = this._getTileSize();
+
+ if (zoom > this.options.maxZoom || zoom < this.options.minZoom) {
+ return;
+ }
+
+ var tileBounds = L.bounds(
+ bounds.min.divideBy(tileSize)._floor(),
+ bounds.max.divideBy(tileSize)._floor());
+
+ this._addTilesFromCenterOut(tileBounds);
+
+ if (this.options.unloadInvisibleTiles || this.options.reuseTiles) {
+ this._removeOtherTiles(tileBounds);
+ }
+ },
+
+ _addTilesFromCenterOut: function (bounds) {
+ var queue = [],
+ center = bounds.getCenter();
+
+ var j, i, point;
+
+ for (j = bounds.min.y; j <= bounds.max.y; j++) {
+ for (i = bounds.min.x; i <= bounds.max.x; i++) {
+ point = new L.Point(i, j);
+
+ if (this._tileShouldBeLoaded(point)) {
+ queue.push(point);
+ }
+ }
+ }
+
+ var tilesToLoad = queue.length;
+
+ if (tilesToLoad === 0) { return; }
+
+ // load tiles in order of their distance to center
+ queue.sort(function (a, b) {
+ return a.distanceTo(center) - b.distanceTo(center);
+ });
+
+ var fragment = document.createDocumentFragment();
+
+ // if its the first batch of tiles to load
+ if (!this._tilesToLoad) {
+ this.fire('loading');
+ }
+
+ this._tilesToLoad += tilesToLoad;
+
+ for (i = 0; i < tilesToLoad; i++) {
+ this._addTile(queue[i], fragment);
+ }
+
+ this._tileContainer.appendChild(fragment);
+ },
+
+ _tileShouldBeLoaded: function (tilePoint) {
+ if ((tilePoint.x + ':' + tilePoint.y) in this._tiles) {
+ return false; // already loaded
+ }
+
+ var options = this.options;
+
+ if (!options.continuousWorld) {
+ var limit = this._getWrapTileNum();
+
+ // don't load if exceeds world bounds
+ if ((options.noWrap && (tilePoint.x < 0 || tilePoint.x >= limit.x)) ||
+ tilePoint.y < 0 || tilePoint.y >= limit.y) { return false; }
+ }
+
+ if (options.bounds) {
+ var tileSize = options.tileSize,
+ nwPoint = tilePoint.multiplyBy(tileSize),
+ sePoint = nwPoint.add([tileSize, tileSize]),
+ nw = this._map.unproject(nwPoint),
+ se = this._map.unproject(sePoint);
+
+ // TODO temporary hack, will be removed after refactoring projections
+ // https://github.com/Leaflet/Leaflet/issues/1618
+ if (!options.continuousWorld && !options.noWrap) {
+ nw = nw.wrap();
+ se = se.wrap();
+ }
+
+ if (!options.bounds.intersects([nw, se])) { return false; }
+ }
+
+ return true;
+ },
+
+ _removeOtherTiles: function (bounds) {
+ var kArr, x, y, key;
+
+ for (key in this._tiles) {
+ kArr = key.split(':');
+ x = parseInt(kArr[0], 10);
+ y = parseInt(kArr[1], 10);
+
+ // remove tile if it's out of bounds
+ if (x < bounds.min.x || x > bounds.max.x || y < bounds.min.y || y > bounds.max.y) {
+ this._removeTile(key);
+ }
+ }
+ },
+
+ _removeTile: function (key) {
+ var tile = this._tiles[key];
+
+ this.fire('tileunload', {tile: tile, url: tile.src});
+
+ if (this.options.reuseTiles) {
+ L.DomUtil.removeClass(tile, 'leaflet-tile-loaded');
+ this._unusedTiles.push(tile);
+
+ } else if (tile.parentNode === this._tileContainer) {
+ this._tileContainer.removeChild(tile);
+ }
+
+ // for https://github.com/CloudMade/Leaflet/issues/137
+ if (!L.Browser.android) {
+ tile.onload = null;
+ tile.src = L.Util.emptyImageUrl;
+ }
+
+ delete this._tiles[key];
+ },
+
+ _addTile: function (tilePoint, container) {
+ var tilePos = this._getTilePos(tilePoint);
+
+ // get unused tile - or create a new tile
+ var tile = this._getTile();
+
+ /*
+ Chrome 20 layouts much faster with top/left (verify with timeline, frames)
+ Android 4 browser has display issues with top/left and requires transform instead
+ (other browsers don't currently care) - see debug/hacks/jitter.html for an example
+ */
+ L.DomUtil.setPosition(tile, tilePos, L.Browser.chrome);
+
+ this._tiles[tilePoint.x + ':' + tilePoint.y] = tile;
+
+ this._loadTile(tile, tilePoint);
+
+ if (tile.parentNode !== this._tileContainer) {
+ container.appendChild(tile);
+ }
+ },
+
+ _getZoomForUrl: function () {
+
+ var options = this.options,
+ zoom = this._map.getZoom();
+
+ if (options.zoomReverse) {
+ zoom = options.maxZoom - zoom;
+ }
+
+ zoom += options.zoomOffset;
+
+ return options.maxNativeZoom ? Math.min(zoom, options.maxNativeZoom) : zoom;
+ },
+
+ _getTilePos: function (tilePoint) {
+ var origin = this._map.getPixelOrigin(),
+ tileSize = this._getTileSize();
+
+ return tilePoint.multiplyBy(tileSize).subtract(origin);
+ },
+
+ // image-specific code (override to implement e.g. Canvas or SVG tile layer)
+
+ getTileUrl: function (tilePoint) {
+ return L.Util.template(this._url, L.extend({
+ s: this._getSubdomain(tilePoint),
+ z: tilePoint.z,
+ x: tilePoint.x,
+ y: tilePoint.y
+ }, this.options));
+ },
+
+ _getWrapTileNum: function () {
+ var crs = this._map.options.crs,
+ size = crs.getSize(this._map.getZoom());
+ return size.divideBy(this._getTileSize())._floor();
+ },
+
+ _adjustTilePoint: function (tilePoint) {
+
+ var limit = this._getWrapTileNum();
+
+ // wrap tile coordinates
+ if (!this.options.continuousWorld && !this.options.noWrap) {
+ tilePoint.x = ((tilePoint.x % limit.x) + limit.x) % limit.x;
+ }
+
+ if (this.options.tms) {
+ tilePoint.y = limit.y - tilePoint.y - 1;
+ }
+
+ tilePoint.z = this._getZoomForUrl();
+ },
+
+ _getSubdomain: function (tilePoint) {
+ var index = Math.abs(tilePoint.x + tilePoint.y) % this.options.subdomains.length;
+ return this.options.subdomains[index];
+ },
+
+ _getTile: function () {
+ if (this.options.reuseTiles && this._unusedTiles.length > 0) {
+ var tile = this._unusedTiles.pop();
+ this._resetTile(tile);
+ return tile;
+ }
+ return this._createTile();
+ },
+
+ // Override if data stored on a tile needs to be cleaned up before reuse
+ _resetTile: function (/*tile*/) {},
+
+ _createTile: function () {
+ var tile = L.DomUtil.create('img', 'leaflet-tile');
+ tile.style.width = tile.style.height = this._getTileSize() + 'px';
+ tile.galleryimg = 'no';
+
+ tile.onselectstart = tile.onmousemove = L.Util.falseFn;
+
+ if (L.Browser.ielt9 && this.options.opacity !== undefined) {
+ L.DomUtil.setOpacity(tile, this.options.opacity);
+ }
+ // without this hack, tiles disappear after zoom on Chrome for Android
+ // https://github.com/Leaflet/Leaflet/issues/2078
+ if (L.Browser.mobileWebkit3d) {
+ tile.style.WebkitBackfaceVisibility = 'hidden';
+ }
+ return tile;
+ },
+
+ _loadTile: function (tile, tilePoint) {
+ tile._layer = this;
+ tile.onload = this._tileOnLoad;
+ tile.onerror = this._tileOnError;
+
+ this._adjustTilePoint(tilePoint);
+ tile.src = this.getTileUrl(tilePoint);
+
+ this.fire('tileloadstart', {
+ tile: tile,
+ url: tile.src
+ });
+ },
+
+ _tileLoaded: function () {
+ this._tilesToLoad--;
+
+ if (this._animated) {
+ L.DomUtil.addClass(this._tileContainer, 'leaflet-zoom-animated');
+ }
+
+ if (!this._tilesToLoad) {
+ this.fire('load');
+
+ if (this._animated) {
+ // clear scaled tiles after all new tiles are loaded (for performance)
+ clearTimeout(this._clearBgBufferTimer);
+ this._clearBgBufferTimer = setTimeout(L.bind(this._clearBgBuffer, this), 500);
+ }
+ }
+ },
+
+ _tileOnLoad: function () {
+ var layer = this._layer;
+
+ //Only if we are loading an actual image
+ if (this.src !== L.Util.emptyImageUrl) {
+ L.DomUtil.addClass(this, 'leaflet-tile-loaded');
+
+ layer.fire('tileload', {
+ tile: this,
+ url: this.src
+ });
+ }
+
+ layer._tileLoaded();
+ },
+
+ _tileOnError: function () {
+ var layer = this._layer;
+
+ layer.fire('tileerror', {
+ tile: this,
+ url: this.src
+ });
+
+ var newUrl = layer.options.errorTileUrl;
+ if (newUrl) {
+ this.src = newUrl;
+ }
+
+ layer._tileLoaded();
+ }
+});
+
+L.tileLayer = function (url, options) {
+ return new L.TileLayer(url, options);
+};
+
+
+/*
+ * L.TileLayer.WMS is used for putting WMS tile layers on the map.
+ */
+
+L.TileLayer.WMS = L.TileLayer.extend({
+
+ defaultWmsParams: {
+ service: 'WMS',
+ request: 'GetMap',
+ version: '1.1.1',
+ layers: '',
+ styles: '',
+ format: 'image/jpeg',
+ transparent: false
+ },
+
+ initialize: function (url, options) { // (String, Object)
+
+ this._url = url;
+
+ var wmsParams = L.extend({}, this.defaultWmsParams),
+ tileSize = options.tileSize || this.options.tileSize;
+
+ if (options.detectRetina && L.Browser.retina) {
+ wmsParams.width = wmsParams.height = tileSize * 2;
+ } else {
+ wmsParams.width = wmsParams.height = tileSize;
+ }
+
+ for (var i in options) {
+ // all keys that are not TileLayer options go to WMS params
+ if (!this.options.hasOwnProperty(i) && i !== 'crs') {
+ wmsParams[i] = options[i];
+ }
+ }
+
+ this.wmsParams = wmsParams;
+
+ L.setOptions(this, options);
+ },
+
+ onAdd: function (map) {
+
+ this._crs = this.options.crs || map.options.crs;
+
+ this._wmsVersion = parseFloat(this.wmsParams.version);
+
+ var projectionKey = this._wmsVersion >= 1.3 ? 'crs' : 'srs';
+ this.wmsParams[projectionKey] = this._crs.code;
+
+ L.TileLayer.prototype.onAdd.call(this, map);
+ },
+
+ getTileUrl: function (tilePoint) { // (Point, Number) -> String
+
+ var map = this._map,
+ tileSize = this.options.tileSize,
+
+ nwPoint = tilePoint.multiplyBy(tileSize),
+ sePoint = nwPoint.add([tileSize, tileSize]),
+
+ nw = this._crs.project(map.unproject(nwPoint, tilePoint.z)),
+ se = this._crs.project(map.unproject(sePoint, tilePoint.z)),
+ bbox = this._wmsVersion >= 1.3 && this._crs === L.CRS.EPSG4326 ?
+ [se.y, nw.x, nw.y, se.x].join(',') :
+ [nw.x, se.y, se.x, nw.y].join(','),
+
+ url = L.Util.template(this._url, {s: this._getSubdomain(tilePoint)});
+
+ return url + L.Util.getParamString(this.wmsParams, url, true) + '&BBOX=' + bbox;
+ },
+
+ setParams: function (params, noRedraw) {
+
+ L.extend(this.wmsParams, params);
+
+ if (!noRedraw) {
+ this.redraw();
+ }
+
+ return this;
+ }
+});
+
+L.tileLayer.wms = function (url, options) {
+ return new L.TileLayer.WMS(url, options);
+};
+
+
+/*
+ * L.TileLayer.Canvas is a class that you can use as a base for creating
+ * dynamically drawn Canvas-based tile layers.
+ */
+
+L.TileLayer.Canvas = L.TileLayer.extend({
+ options: {
+ async: false
+ },
+
+ initialize: function (options) {
+ L.setOptions(this, options);
+ },
+
+ redraw: function () {
+ if (this._map) {
+ this._reset({hard: true});
+ this._update();
+ }
+
+ for (var i in this._tiles) {
+ this._redrawTile(this._tiles[i]);
+ }
+ return this;
+ },
+
+ _redrawTile: function (tile) {
+ this.drawTile(tile, tile._tilePoint, this._map._zoom);
+ },
+
+ _createTile: function () {
+ var tile = L.DomUtil.create('canvas', 'leaflet-tile');
+ tile.width = tile.height = this.options.tileSize;
+ tile.onselectstart = tile.onmousemove = L.Util.falseFn;
+ return tile;
+ },
+
+ _loadTile: function (tile, tilePoint) {
+ tile._layer = this;
+ tile._tilePoint = tilePoint;
+
+ this._redrawTile(tile);
+
+ if (!this.options.async) {
+ this.tileDrawn(tile);
+ }
+ },
+
+ drawTile: function (/*tile, tilePoint*/) {
+ // override with rendering code
+ },
+
+ tileDrawn: function (tile) {
+ this._tileOnLoad.call(tile);
+ }
+});
+
+
+L.tileLayer.canvas = function (options) {
+ return new L.TileLayer.Canvas(options);
+};
+
+
+/*
+ * L.ImageOverlay is used to overlay images over the map (to specific geographical bounds).
+ */
+
+L.ImageOverlay = L.Class.extend({
+ includes: L.Mixin.Events,
+
+ options: {
+ opacity: 1
+ },
+
+ initialize: function (url, bounds, options) { // (String, LatLngBounds, Object)
+ this._url = url;
+ this._bounds = L.latLngBounds(bounds);
+
+ L.setOptions(this, options);
+ },
+
+ onAdd: function (map) {
+ this._map = map;
+
+ if (!this._image) {
+ this._initImage();
+ }
+
+ map._panes.overlayPane.appendChild(this._image);
+
+ map.on('viewreset', this._reset, this);
+
+ if (map.options.zoomAnimation && L.Browser.any3d) {
+ map.on('zoomanim', this._animateZoom, this);
+ }
+
+ this._reset();
+ },
+
+ onRemove: function (map) {
+ map.getPanes().overlayPane.removeChild(this._image);
+
+ map.off('viewreset', this._reset, this);
+
+ if (map.options.zoomAnimation) {
+ map.off('zoomanim', this._animateZoom, this);
+ }
+ },
+
+ addTo: function (map) {
+ map.addLayer(this);
+ return this;
+ },
+
+ setOpacity: function (opacity) {
+ this.options.opacity = opacity;
+ this._updateOpacity();
+ return this;
+ },
+
+ // TODO remove bringToFront/bringToBack duplication from TileLayer/Path
+ bringToFront: function () {
+ if (this._image) {
+ this._map._panes.overlayPane.appendChild(this._image);
+ }
+ return this;
+ },
+
+ bringToBack: function () {
+ var pane = this._map._panes.overlayPane;
+ if (this._image) {
+ pane.insertBefore(this._image, pane.firstChild);
+ }
+ return this;
+ },
+
+ setUrl: function (url) {
+ this._url = url;
+ this._image.src = this._url;
+ },
+
+ getAttribution: function () {
+ return this.options.attribution;
+ },
+
+ _initImage: function () {
+ this._image = L.DomUtil.create('img', 'leaflet-image-layer');
+
+ if (this._map.options.zoomAnimation && L.Browser.any3d) {
+ L.DomUtil.addClass(this._image, 'leaflet-zoom-animated');
+ } else {
+ L.DomUtil.addClass(this._image, 'leaflet-zoom-hide');
+ }
+
+ this._updateOpacity();
+
+ //TODO createImage util method to remove duplication
+ L.extend(this._image, {
+ galleryimg: 'no',
+ onselectstart: L.Util.falseFn,
+ onmousemove: L.Util.falseFn,
+ onload: L.bind(this._onImageLoad, this),
+ src: this._url
+ });
+ },
+
+ _animateZoom: function (e) {
+ var map = this._map,
+ image = this._image,
+ scale = map.getZoomScale(e.zoom),
+ nw = this._bounds.getNorthWest(),
+ se = this._bounds.getSouthEast(),
+
+ topLeft = map._latLngToNewLayerPoint(nw, e.zoom, e.center),
+ size = map._latLngToNewLayerPoint(se, e.zoom, e.center)._subtract(topLeft),
+ origin = topLeft._add(size._multiplyBy((1 / 2) * (1 - 1 / scale)));
+
+ image.style[L.DomUtil.TRANSFORM] =
+ L.DomUtil.getTranslateString(origin) + ' scale(' + scale + ') ';
+ },
+
+ _reset: function () {
+ var image = this._image,
+ topLeft = this._map.latLngToLayerPoint(this._bounds.getNorthWest()),
+ size = this._map.latLngToLayerPoint(this._bounds.getSouthEast())._subtract(topLeft);
+
+ L.DomUtil.setPosition(image, topLeft);
+
+ image.style.width = size.x + 'px';
+ image.style.height = size.y + 'px';
+ },
+
+ _onImageLoad: function () {
+ this.fire('load');
+ },
+
+ _updateOpacity: function () {
+ L.DomUtil.setOpacity(this._image, this.options.opacity);
+ }
+});
+
+L.imageOverlay = function (url, bounds, options) {
+ return new L.ImageOverlay(url, bounds, options);
+};
+
+
+/*
+ * L.Icon is an image-based icon class that you can use with L.Marker for custom markers.
+ */
+
+L.Icon = L.Class.extend({
+ options: {
+ /*
+ iconUrl: (String) (required)
+ iconRetinaUrl: (String) (optional, used for retina devices if detected)
+ iconSize: (Point) (can be set through CSS)
+ iconAnchor: (Point) (centered by default, can be set in CSS with negative margins)
+ popupAnchor: (Point) (if not specified, popup opens in the anchor point)
+ shadowUrl: (String) (no shadow by default)
+ shadowRetinaUrl: (String) (optional, used for retina devices if detected)
+ shadowSize: (Point)
+ shadowAnchor: (Point)
+ */
+ className: ''
+ },
+
+ initialize: function (options) {
+ L.setOptions(this, options);
+ },
+
+ createIcon: function (oldIcon) {
+ return this._createIcon('icon', oldIcon);
+ },
+
+ createShadow: function (oldIcon) {
+ return this._createIcon('shadow', oldIcon);
+ },
+
+ _createIcon: function (name, oldIcon) {
+ var src = this._getIconUrl(name);
+
+ if (!src) {
+ if (name === 'icon') {
+ throw new Error('iconUrl not set in Icon options (see the docs).');
+ }
+ return null;
+ }
+
+ var img;
+ if (!oldIcon || oldIcon.tagName !== 'IMG') {
+ img = this._createImg(src);
+ } else {
+ img = this._createImg(src, oldIcon);
+ }
+ this._setIconStyles(img, name);
+
+ return img;
+ },
+
+ _setIconStyles: function (img, name) {
+ var options = this.options,
+ size = L.point(options[name + 'Size']),
+ anchor;
+
+ if (name === 'shadow') {
+ anchor = L.point(options.shadowAnchor || options.iconAnchor);
+ } else {
+ anchor = L.point(options.iconAnchor);
+ }
+
+ if (!anchor && size) {
+ anchor = size.divideBy(2, true);
+ }
+
+ img.className = 'leaflet-marker-' + name + ' ' + options.className;
+
+ if (anchor) {
+ img.style.marginLeft = (-anchor.x) + 'px';
+ img.style.marginTop = (-anchor.y) + 'px';
+ }
+
+ if (size) {
+ img.style.width = size.x + 'px';
+ img.style.height = size.y + 'px';
+ }
+ },
+
+ _createImg: function (src, el) {
+ el = el || document.createElement('img');
+ el.src = src;
+ return el;
+ },
+
+ _getIconUrl: function (name) {
+ if (L.Browser.retina && this.options[name + 'RetinaUrl']) {
+ return this.options[name + 'RetinaUrl'];
+ }
+ return this.options[name + 'Url'];
+ }
+});
+
+L.icon = function (options) {
+ return new L.Icon(options);
+};
+
+
+/*
+ * L.Icon.Default is the blue marker icon used by default in Leaflet.
+ */
+
+L.Icon.Default = L.Icon.extend({
+
+ options: {
+ iconSize: [25, 41],
+ iconAnchor: [12, 41],
+ popupAnchor: [1, -34],
+
+ shadowSize: [41, 41]
+ },
+
+ _getIconUrl: function (name) {
+ var key = name + 'Url';
+
+ if (this.options[key]) {
+ return this.options[key];
+ }
+
+ if (L.Browser.retina && name === 'icon') {
+ name += '-2x';
+ }
+
+ var path = L.Icon.Default.imagePath;
+
+ if (!path) {
+ throw new Error('Couldn\'t autodetect L.Icon.Default.imagePath, set it manually.');
+ }
+
+ return path + '/marker-' + name + '.png';
+ }
+});
+
+L.Icon.Default.imagePath = (function () {
+ var scripts = document.getElementsByTagName('script'),
+ leafletRe = /[\/^]leaflet[\-\._]?([\w\-\._]*)\.js\??/;
+
+ var i, len, src, matches, path;
+
+ for (i = 0, len = scripts.length; i < len; i++) {
+ src = scripts[i].src;
+ matches = src.match(leafletRe);
+
+ if (matches) {
+ path = src.split(leafletRe)[0];
+ return (path ? path + '/' : '') + 'images';
+ }
+ }
+}());
+
+
+/*
+ * L.Marker is used to display clickable/draggable icons on the map.
+ */
+
+L.Marker = L.Class.extend({
+
+ includes: L.Mixin.Events,
+
+ options: {
+ icon: new L.Icon.Default(),
+ title: '',
+ alt: '',
+ clickable: true,
+ draggable: false,
+ keyboard: true,
+ zIndexOffset: 0,
+ opacity: 1,
+ riseOnHover: false,
+ riseOffset: 250
+ },
+
+ initialize: function (latlng, options) {
+ L.setOptions(this, options);
+ this._latlng = L.latLng(latlng);
+ },
+
+ onAdd: function (map) {
+ this._map = map;
+
+ map.on('viewreset', this.update, this);
+
+ this._initIcon();
+ this.update();
+ this.fire('add');
+
+ if (map.options.zoomAnimation && map.options.markerZoomAnimation) {
+ map.on('zoomanim', this._animateZoom, this);
+ }
+ },
+
+ addTo: function (map) {
+ map.addLayer(this);
+ return this;
+ },
+
+ onRemove: function (map) {
+ if (this.dragging) {
+ this.dragging.disable();
+ }
+
+ this._removeIcon();
+ this._removeShadow();
+
+ this.fire('remove');
+
+ map.off({
+ 'viewreset': this.update,
+ 'zoomanim': this._animateZoom
+ }, this);
+
+ this._map = null;
+ },
+
+ getLatLng: function () {
+ return this._latlng;
+ },
+
+ setLatLng: function (latlng) {
+ this._latlng = L.latLng(latlng);
+
+ this.update();
+
+ return this.fire('move', { latlng: this._latlng });
+ },
+
+ setZIndexOffset: function (offset) {
+ this.options.zIndexOffset = offset;
+ this.update();
+
+ return this;
+ },
+
+ setIcon: function (icon) {
+
+ this.options.icon = icon;
+
+ if (this._map) {
+ this._initIcon();
+ this.update();
+ }
+
+ if (this._popup) {
+ this.bindPopup(this._popup);
+ }
+
+ return this;
+ },
+
+ update: function () {
+ if (this._icon) {
+ var pos = this._map.latLngToLayerPoint(this._latlng).round();
+ this._setPos(pos);
+ }
+
+ return this;
+ },
+
+ _initIcon: function () {
+ var options = this.options,
+ map = this._map,
+ animation = (map.options.zoomAnimation && map.options.markerZoomAnimation),
+ classToAdd = animation ? 'leaflet-zoom-animated' : 'leaflet-zoom-hide';
+
+ var icon = options.icon.createIcon(this._icon),
+ addIcon = false;
+
+ // if we're not reusing the icon, remove the old one and init new one
+ if (icon !== this._icon) {
+ if (this._icon) {
+ this._removeIcon();
+ }
+ addIcon = true;
+
+ if (options.title) {
+ icon.title = options.title;
+ }
+
+ if (options.alt) {
+ icon.alt = options.alt;
+ }
+ }
+
+ L.DomUtil.addClass(icon, classToAdd);
+
+ if (options.keyboard) {
+ icon.tabIndex = '0';
+ }
+
+ this._icon = icon;
+
+ this._initInteraction();
+
+ if (options.riseOnHover) {
+ L.DomEvent
+ .on(icon, 'mouseover', this._bringToFront, this)
+ .on(icon, 'mouseout', this._resetZIndex, this);
+ }
+
+ var newShadow = options.icon.createShadow(this._shadow),
+ addShadow = false;
+
+ if (newShadow !== this._shadow) {
+ this._removeShadow();
+ addShadow = true;
+ }
+
+ if (newShadow) {
+ L.DomUtil.addClass(newShadow, classToAdd);
+ }
+ this._shadow = newShadow;
+
+
+ if (options.opacity < 1) {
+ this._updateOpacity();
+ }
+
+
+ var panes = this._map._panes;
+
+ if (addIcon) {
+ panes.markerPane.appendChild(this._icon);
+ }
+
+ if (newShadow && addShadow) {
+ panes.shadowPane.appendChild(this._shadow);
+ }
+ },
+
+ _removeIcon: function () {
+ if (this.options.riseOnHover) {
+ L.DomEvent
+ .off(this._icon, 'mouseover', this._bringToFront)
+ .off(this._icon, 'mouseout', this._resetZIndex);
+ }
+
+ this._map._panes.markerPane.removeChild(this._icon);
+
+ this._icon = null;
+ },
+
+ _removeShadow: function () {
+ if (this._shadow) {
+ this._map._panes.shadowPane.removeChild(this._shadow);
+ }
+ this._shadow = null;
+ },
+
+ _setPos: function (pos) {
+ L.DomUtil.setPosition(this._icon, pos);
+
+ if (this._shadow) {
+ L.DomUtil.setPosition(this._shadow, pos);
+ }
+
+ this._zIndex = pos.y + this.options.zIndexOffset;
+
+ this._resetZIndex();
+ },
+
+ _updateZIndex: function (offset) {
+ this._icon.style.zIndex = this._zIndex + offset;
+ },
+
+ _animateZoom: function (opt) {
+ var pos = this._map._latLngToNewLayerPoint(this._latlng, opt.zoom, opt.center).round();
+
+ this._setPos(pos);
+ },
+
+ _initInteraction: function () {
+
+ if (!this.options.clickable) { return; }
+
+ // TODO refactor into something shared with Map/Path/etc. to DRY it up
+
+ var icon = this._icon,
+ events = ['dblclick', 'mousedown', 'mouseover', 'mouseout', 'contextmenu'];
+
+ L.DomUtil.addClass(icon, 'leaflet-clickable');
+ L.DomEvent.on(icon, 'click', this._onMouseClick, this);
+ L.DomEvent.on(icon, 'keypress', this._onKeyPress, this);
+
+ for (var i = 0; i < events.length; i++) {
+ L.DomEvent.on(icon, events[i], this._fireMouseEvent, this);
+ }
+
+ if (L.Handler.MarkerDrag) {
+ this.dragging = new L.Handler.MarkerDrag(this);
+
+ if (this.options.draggable) {
+ this.dragging.enable();
+ }
+ }
+ },
+
+ _onMouseClick: function (e) {
+ var wasDragged = this.dragging && this.dragging.moved();
+
+ if (this.hasEventListeners(e.type) || wasDragged) {
+ L.DomEvent.stopPropagation(e);
+ }
+
+ if (wasDragged) { return; }
+
+ if ((!this.dragging || !this.dragging._enabled) && this._map.dragging && this._map.dragging.moved()) { return; }
+
+ this.fire(e.type, {
+ originalEvent: e,
+ latlng: this._latlng
+ });
+ },
+
+ _onKeyPress: function (e) {
+ if (e.keyCode === 13) {
+ this.fire('click', {
+ originalEvent: e,
+ latlng: this._latlng
+ });
+ }
+ },
+
+ _fireMouseEvent: function (e) {
+
+ this.fire(e.type, {
+ originalEvent: e,
+ latlng: this._latlng
+ });
+
+ // TODO proper custom event propagation
+ // this line will always be called if marker is in a FeatureGroup
+ if (e.type === 'contextmenu' && this.hasEventListeners(e.type)) {
+ L.DomEvent.preventDefault(e);
+ }
+ if (e.type !== 'mousedown') {
+ L.DomEvent.stopPropagation(e);
+ } else {
+ L.DomEvent.preventDefault(e);
+ }
+ },
+
+ setOpacity: function (opacity) {
+ this.options.opacity = opacity;
+ if (this._map) {
+ this._updateOpacity();
+ }
+
+ return this;
+ },
+
+ _updateOpacity: function () {
+ L.DomUtil.setOpacity(this._icon, this.options.opacity);
+ if (this._shadow) {
+ L.DomUtil.setOpacity(this._shadow, this.options.opacity);
+ }
+ },
+
+ _bringToFront: function () {
+ this._updateZIndex(this.options.riseOffset);
+ },
+
+ _resetZIndex: function () {
+ this._updateZIndex(0);
+ }
+});
+
+L.marker = function (latlng, options) {
+ return new L.Marker(latlng, options);
+};
+
+
+/*
+ * L.DivIcon is a lightweight HTML-based icon class (as opposed to the image-based L.Icon)
+ * to use with L.Marker.
+ */
+
+L.DivIcon = L.Icon.extend({
+ options: {
+ iconSize: [12, 12], // also can be set through CSS
+ /*
+ iconAnchor: (Point)
+ popupAnchor: (Point)
+ html: (String)
+ bgPos: (Point)
+ */
+ className: 'leaflet-div-icon',
+ html: false
+ },
+
+ createIcon: function (oldIcon) {
+ var div = (oldIcon && oldIcon.tagName === 'DIV') ? oldIcon : document.createElement('div'),
+ options = this.options;
+
+ if (options.html !== false) {
+ div.innerHTML = options.html;
+ } else {
+ div.innerHTML = '';
+ }
+
+ if (options.bgPos) {
+ div.style.backgroundPosition =
+ (-options.bgPos.x) + 'px ' + (-options.bgPos.y) + 'px';
+ }
+
+ this._setIconStyles(div, 'icon');
+ return div;
+ },
+
+ createShadow: function () {
+ return null;
+ }
+});
+
+L.divIcon = function (options) {
+ return new L.DivIcon(options);
+};
+
+
+/*
+ * L.Popup is used for displaying popups on the map.
+ */
+
+L.Map.mergeOptions({
+ closePopupOnClick: true
+});
+
+L.Popup = L.Class.extend({
+ includes: L.Mixin.Events,
+
+ options: {
+ minWidth: 50,
+ maxWidth: 300,
+ // maxHeight: null,
+ autoPan: true,
+ closeButton: true,
+ offset: [0, 7],
+ autoPanPadding: [5, 5],
+ // autoPanPaddingTopLeft: null,
+ // autoPanPaddingBottomRight: null,
+ keepInView: false,
+ className: '',
+ zoomAnimation: true
+ },
+
+ initialize: function (options, source) {
+ L.setOptions(this, options);
+
+ this._source = source;
+ this._animated = L.Browser.any3d && this.options.zoomAnimation;
+ this._isOpen = false;
+ },
+
+ onAdd: function (map) {
+ this._map = map;
+
+ if (!this._container) {
+ this._initLayout();
+ }
+
+ var animFade = map.options.fadeAnimation;
+
+ if (animFade) {
+ L.DomUtil.setOpacity(this._container, 0);
+ }
+ map._panes.popupPane.appendChild(this._container);
+
+ map.on(this._getEvents(), this);
+
+ this.update();
+
+ if (animFade) {
+ L.DomUtil.setOpacity(this._container, 1);
+ }
+
+ this.fire('open');
+
+ map.fire('popupopen', {popup: this});
+
+ if (this._source) {
+ this._source.fire('popupopen', {popup: this});
+ }
+ },
+
+ addTo: function (map) {
+ map.addLayer(this);
+ return this;
+ },
+
+ openOn: function (map) {
+ map.openPopup(this);
+ return this;
+ },
+
+ onRemove: function (map) {
+ map._panes.popupPane.removeChild(this._container);
+
+ L.Util.falseFn(this._container.offsetWidth); // force reflow
+
+ map.off(this._getEvents(), this);
+
+ if (map.options.fadeAnimation) {
+ L.DomUtil.setOpacity(this._container, 0);
+ }
+
+ this._map = null;
+
+ this.fire('close');
+
+ map.fire('popupclose', {popup: this});
+
+ if (this._source) {
+ this._source.fire('popupclose', {popup: this});
+ }
+ },
+
+ getLatLng: function () {
+ return this._latlng;
+ },
+
+ setLatLng: function (latlng) {
+ this._latlng = L.latLng(latlng);
+ if (this._map) {
+ this._updatePosition();
+ this._adjustPan();
+ }
+ return this;
+ },
+
+ getContent: function () {
+ return this._content;
+ },
+
+ setContent: function (content) {
+ this._content = content;
+ this.update();
+ return this;
+ },
+
+ update: function () {
+ if (!this._map) { return; }
+
+ this._container.style.visibility = 'hidden';
+
+ this._updateContent();
+ this._updateLayout();
+ this._updatePosition();
+
+ this._container.style.visibility = '';
+
+ this._adjustPan();
+ },
+
+ _getEvents: function () {
+ var events = {
+ viewreset: this._updatePosition
+ };
+
+ if (this._animated) {
+ events.zoomanim = this._zoomAnimation;
+ }
+ if ('closeOnClick' in this.options ? this.options.closeOnClick : this._map.options.closePopupOnClick) {
+ events.preclick = this._close;
+ }
+ if (this.options.keepInView) {
+ events.moveend = this._adjustPan;
+ }
+
+ return events;
+ },
+
+ _close: function () {
+ if (this._map) {
+ this._map.closePopup(this);
+ }
+ },
+
+ _initLayout: function () {
+ var prefix = 'leaflet-popup',
+ containerClass = prefix + ' ' + this.options.className + ' leaflet-zoom-' +
+ (this._animated ? 'animated' : 'hide'),
+ container = this._container = L.DomUtil.create('div', containerClass),
+ closeButton;
+
+ if (this.options.closeButton) {
+ closeButton = this._closeButton =
+ L.DomUtil.create('a', prefix + '-close-button', container);
+ closeButton.href = '#close';
+ closeButton.innerHTML = '×';
+ L.DomEvent.disableClickPropagation(closeButton);
+
+ L.DomEvent.on(closeButton, 'click', this._onCloseButtonClick, this);
+ }
+
+ var wrapper = this._wrapper =
+ L.DomUtil.create('div', prefix + '-content-wrapper', container);
+ L.DomEvent.disableClickPropagation(wrapper);
+
+ this._contentNode = L.DomUtil.create('div', prefix + '-content', wrapper);
+
+ L.DomEvent.disableScrollPropagation(this._contentNode);
+ L.DomEvent.on(wrapper, 'contextmenu', L.DomEvent.stopPropagation);
+
+ this._tipContainer = L.DomUtil.create('div', prefix + '-tip-container', container);
+ this._tip = L.DomUtil.create('div', prefix + '-tip', this._tipContainer);
+ },
+
+ _updateContent: function () {
+ if (!this._content) { return; }
+
+ if (typeof this._content === 'string') {
+ this._contentNode.innerHTML = this._content;
+ } else {
+ while (this._contentNode.hasChildNodes()) {
+ this._contentNode.removeChild(this._contentNode.firstChild);
+ }
+ this._contentNode.appendChild(this._content);
+ }
+ this.fire('contentupdate');
+ },
+
+ _updateLayout: function () {
+ var container = this._contentNode,
+ style = container.style;
+
+ style.width = '';
+ style.whiteSpace = 'nowrap';
+
+ var width = container.offsetWidth;
+ width = Math.min(width, this.options.maxWidth);
+ width = Math.max(width, this.options.minWidth);
+
+ style.width = (width + 1) + 'px';
+ style.whiteSpace = '';
+
+ style.height = '';
+
+ var height = container.offsetHeight,
+ maxHeight = this.options.maxHeight,
+ scrolledClass = 'leaflet-popup-scrolled';
+
+ if (maxHeight && height > maxHeight) {
+ style.height = maxHeight + 'px';
+ L.DomUtil.addClass(container, scrolledClass);
+ } else {
+ L.DomUtil.removeClass(container, scrolledClass);
+ }
+
+ this._containerWidth = this._container.offsetWidth;
+ },
+
+ _updatePosition: function () {
+ if (!this._map) { return; }
+
+ var pos = this._map.latLngToLayerPoint(this._latlng),
+ animated = this._animated,
+ offset = L.point(this.options.offset);
+
+ if (animated) {
+ L.DomUtil.setPosition(this._container, pos);
+ }
+
+ this._containerBottom = -offset.y - (animated ? 0 : pos.y);
+ this._containerLeft = -Math.round(this._containerWidth / 2) + offset.x + (animated ? 0 : pos.x);
+
+ // bottom position the popup in case the height of the popup changes (images loading etc)
+ this._container.style.bottom = this._containerBottom + 'px';
+ this._container.style.left = this._containerLeft + 'px';
+ },
+
+ _zoomAnimation: function (opt) {
+ var pos = this._map._latLngToNewLayerPoint(this._latlng, opt.zoom, opt.center);
+
+ L.DomUtil.setPosition(this._container, pos);
+ },
+
+ _adjustPan: function () {
+ if (!this.options.autoPan) { return; }
+
+ var map = this._map,
+ containerHeight = this._container.offsetHeight,
+ containerWidth = this._containerWidth,
+
+ layerPos = new L.Point(this._containerLeft, -containerHeight - this._containerBottom);
+
+ if (this._animated) {
+ layerPos._add(L.DomUtil.getPosition(this._container));
+ }
+
+ var containerPos = map.layerPointToContainerPoint(layerPos),
+ padding = L.point(this.options.autoPanPadding),
+ paddingTL = L.point(this.options.autoPanPaddingTopLeft || padding),
+ paddingBR = L.point(this.options.autoPanPaddingBottomRight || padding),
+ size = map.getSize(),
+ dx = 0,
+ dy = 0;
+
+ if (containerPos.x + containerWidth + paddingBR.x > size.x) { // right
+ dx = containerPos.x + containerWidth - size.x + paddingBR.x;
+ }
+ if (containerPos.x - dx - paddingTL.x < 0) { // left
+ dx = containerPos.x - paddingTL.x;
+ }
+ if (containerPos.y + containerHeight + paddingBR.y > size.y) { // bottom
+ dy = containerPos.y + containerHeight - size.y + paddingBR.y;
+ }
+ if (containerPos.y - dy - paddingTL.y < 0) { // top
+ dy = containerPos.y - paddingTL.y;
+ }
+
+ if (dx || dy) {
+ map
+ .fire('autopanstart')
+ .panBy([dx, dy]);
+ }
+ },
+
+ _onCloseButtonClick: function (e) {
+ this._close();
+ L.DomEvent.stop(e);
+ }
+});
+
+L.popup = function (options, source) {
+ return new L.Popup(options, source);
+};
+
+
+L.Map.include({
+ openPopup: function (popup, latlng, options) { // (Popup) or (String || HTMLElement, LatLng[, Object])
+ this.closePopup();
+
+ if (!(popup instanceof L.Popup)) {
+ var content = popup;
+
+ popup = new L.Popup(options)
+ .setLatLng(latlng)
+ .setContent(content);
+ }
+ popup._isOpen = true;
+
+ this._popup = popup;
+ return this.addLayer(popup);
+ },
+
+ closePopup: function (popup) {
+ if (!popup || popup === this._popup) {
+ popup = this._popup;
+ this._popup = null;
+ }
+ if (popup) {
+ this.removeLayer(popup);
+ popup._isOpen = false;
+ }
+ return this;
+ }
+});
+
+
+/*
+ * Popup extension to L.Marker, adding popup-related methods.
+ */
+
+L.Marker.include({
+ openPopup: function () {
+ if (this._popup && this._map && !this._map.hasLayer(this._popup)) {
+ this._popup.setLatLng(this._latlng);
+ this._map.openPopup(this._popup);
+ }
+
+ return this;
+ },
+
+ closePopup: function () {
+ if (this._popup) {
+ this._popup._close();
+ }
+ return this;
+ },
+
+ togglePopup: function () {
+ if (this._popup) {
+ if (this._popup._isOpen) {
+ this.closePopup();
+ } else {
+ this.openPopup();
+ }
+ }
+ return this;
+ },
+
+ bindPopup: function (content, options) {
+ var anchor = L.point(this.options.icon.options.popupAnchor || [0, 0]);
+
+ anchor = anchor.add(L.Popup.prototype.options.offset);
+
+ if (options && options.offset) {
+ anchor = anchor.add(options.offset);
+ }
+
+ options = L.extend({offset: anchor}, options);
+
+ if (!this._popupHandlersAdded) {
+ this
+ .on('click', this.togglePopup, this)
+ .on('remove', this.closePopup, this)
+ .on('move', this._movePopup, this);
+ this._popupHandlersAdded = true;
+ }
+
+ if (content instanceof L.Popup) {
+ L.setOptions(content, options);
+ this._popup = content;
+ } else {
+ this._popup = new L.Popup(options, this)
+ .setContent(content);
+ }
+
+ return this;
+ },
+
+ setPopupContent: function (content) {
+ if (this._popup) {
+ this._popup.setContent(content);
+ }
+ return this;
+ },
+
+ unbindPopup: function () {
+ if (this._popup) {
+ this._popup = null;
+ this
+ .off('click', this.togglePopup, this)
+ .off('remove', this.closePopup, this)
+ .off('move', this._movePopup, this);
+ this._popupHandlersAdded = false;
+ }
+ return this;
+ },
+
+ getPopup: function () {
+ return this._popup;
+ },
+
+ _movePopup: function (e) {
+ this._popup.setLatLng(e.latlng);
+ }
+});
+
+
+/*
+ * L.LayerGroup is a class to combine several layers into one so that
+ * you can manipulate the group (e.g. add/remove it) as one layer.
+ */
+
+L.LayerGroup = L.Class.extend({
+ initialize: function (layers) {
+ this._layers = {};
+
+ var i, len;
+
+ if (layers) {
+ for (i = 0, len = layers.length; i < len; i++) {
+ this.addLayer(layers[i]);
+ }
+ }
+ },
+
+ addLayer: function (layer) {
+ var id = this.getLayerId(layer);
+
+ this._layers[id] = layer;
+
+ if (this._map) {
+ this._map.addLayer(layer);
+ }
+
+ return this;
+ },
+
+ removeLayer: function (layer) {
+ var id = layer in this._layers ? layer : this.getLayerId(layer);
+
+ if (this._map && this._layers[id]) {
+ this._map.removeLayer(this._layers[id]);
+ }
+
+ delete this._layers[id];
+
+ return this;
+ },
+
+ hasLayer: function (layer) {
+ if (!layer) { return false; }
+
+ return (layer in this._layers || this.getLayerId(layer) in this._layers);
+ },
+
+ clearLayers: function () {
+ this.eachLayer(this.removeLayer, this);
+ return this;
+ },
+
+ invoke: function (methodName) {
+ var args = Array.prototype.slice.call(arguments, 1),
+ i, layer;
+
+ for (i in this._layers) {
+ layer = this._layers[i];
+
+ if (layer[methodName]) {
+ layer[methodName].apply(layer, args);
+ }
+ }
+
+ return this;
+ },
+
+ onAdd: function (map) {
+ this._map = map;
+ this.eachLayer(map.addLayer, map);
+ },
+
+ onRemove: function (map) {
+ this.eachLayer(map.removeLayer, map);
+ this._map = null;
+ },
+
+ addTo: function (map) {
+ map.addLayer(this);
+ return this;
+ },
+
+ eachLayer: function (method, context) {
+ for (var i in this._layers) {
+ method.call(context, this._layers[i]);
+ }
+ return this;
+ },
+
+ getLayer: function (id) {
+ return this._layers[id];
+ },
+
+ getLayers: function () {
+ var layers = [];
+
+ for (var i in this._layers) {
+ layers.push(this._layers[i]);
+ }
+ return layers;
+ },
+
+ setZIndex: function (zIndex) {
+ return this.invoke('setZIndex', zIndex);
+ },
+
+ getLayerId: function (layer) {
+ return L.stamp(layer);
+ }
+});
+
+L.layerGroup = function (layers) {
+ return new L.LayerGroup(layers);
+};
+
+
+/*
+ * L.FeatureGroup extends L.LayerGroup by introducing mouse events and additional methods
+ * shared between a group of interactive layers (like vectors or markers).
+ */
+
+L.FeatureGroup = L.LayerGroup.extend({
+ includes: L.Mixin.Events,
+
+ statics: {
+ EVENTS: 'click dblclick mouseover mouseout mousemove contextmenu popupopen popupclose'
+ },
+
+ addLayer: function (layer) {
+ if (this.hasLayer(layer)) {
+ return this;
+ }
+
+ if ('on' in layer) {
+ layer.on(L.FeatureGroup.EVENTS, this._propagateEvent, this);
+ }
+
+ L.LayerGroup.prototype.addLayer.call(this, layer);
+
+ if (this._popupContent && layer.bindPopup) {
+ layer.bindPopup(this._popupContent, this._popupOptions);
+ }
+
+ return this.fire('layeradd', {layer: layer});
+ },
+
+ removeLayer: function (layer) {
+ if (!this.hasLayer(layer)) {
+ return this;
+ }
+ if (layer in this._layers) {
+ layer = this._layers[layer];
+ }
+
+ layer.off(L.FeatureGroup.EVENTS, this._propagateEvent, this);
+
+ L.LayerGroup.prototype.removeLayer.call(this, layer);
+
+ if (this._popupContent) {
+ this.invoke('unbindPopup');
+ }
+
+ return this.fire('layerremove', {layer: layer});
+ },
+
+ bindPopup: function (content, options) {
+ this._popupContent = content;
+ this._popupOptions = options;
+ return this.invoke('bindPopup', content, options);
+ },
+
+ openPopup: function (latlng) {
+ // open popup on the first layer
+ for (var id in this._layers) {
+ this._layers[id].openPopup(latlng);
+ break;
+ }
+ return this;
+ },
+
+ setStyle: function (style) {
+ return this.invoke('setStyle', style);
+ },
+
+ bringToFront: function () {
+ return this.invoke('bringToFront');
+ },
+
+ bringToBack: function () {
+ return this.invoke('bringToBack');
+ },
+
+ getBounds: function () {
+ var bounds = new L.LatLngBounds();
+
+ this.eachLayer(function (layer) {
+ bounds.extend(layer instanceof L.Marker ? layer.getLatLng() : layer.getBounds());
+ });
+
+ return bounds;
+ },
+
+ _propagateEvent: function (e) {
+ e = L.extend({
+ layer: e.target,
+ target: this
+ }, e);
+ this.fire(e.type, e);
+ }
+});
+
+L.featureGroup = function (layers) {
+ return new L.FeatureGroup(layers);
+};
+
+
+/*
+ * L.Path is a base class for rendering vector paths on a map. Inherited by Polyline, Circle, etc.
+ */
+
+L.Path = L.Class.extend({
+ includes: [L.Mixin.Events],
+
+ statics: {
+ // how much to extend the clip area around the map view
+ // (relative to its size, e.g. 0.5 is half the screen in each direction)
+ // set it so that SVG element doesn't exceed 1280px (vectors flicker on dragend if it is)
+ CLIP_PADDING: (function () {
+ var max = L.Browser.mobile ? 1280 : 2000,
+ target = (max / Math.max(window.outerWidth, window.outerHeight) - 1) / 2;
+ return Math.max(0, Math.min(0.5, target));
+ })()
+ },
+
+ options: {
+ stroke: true,
+ color: '#0033ff',
+ dashArray: null,
+ lineCap: null,
+ lineJoin: null,
+ weight: 5,
+ opacity: 0.5,
+
+ fill: false,
+ fillColor: null, //same as color by default
+ fillOpacity: 0.2,
+
+ clickable: true
+ },
+
+ initialize: function (options) {
+ L.setOptions(this, options);
+ },
+
+ onAdd: function (map) {
+ this._map = map;
+
+ if (!this._container) {
+ this._initElements();
+ this._initEvents();
+ }
+
+ this.projectLatlngs();
+ this._updatePath();
+
+ if (this._container) {
+ this._map._pathRoot.appendChild(this._container);
+ }
+
+ this.fire('add');
+
+ map.on({
+ 'viewreset': this.projectLatlngs,
+ 'moveend': this._updatePath
+ }, this);
+ },
+
+ addTo: function (map) {
+ map.addLayer(this);
+ return this;
+ },
+
+ onRemove: function (map) {
+ map._pathRoot.removeChild(this._container);
+
+ // Need to fire remove event before we set _map to null as the event hooks might need the object
+ this.fire('remove');
+ this._map = null;
+
+ if (L.Browser.vml) {
+ this._container = null;
+ this._stroke = null;
+ this._fill = null;
+ }
+
+ map.off({
+ 'viewreset': this.projectLatlngs,
+ 'moveend': this._updatePath
+ }, this);
+ },
+
+ projectLatlngs: function () {
+ // do all projection stuff here
+ },
+
+ setStyle: function (style) {
+ L.setOptions(this, style);
+
+ if (this._container) {
+ this._updateStyle();
+ }
+
+ return this;
+ },
+
+ redraw: function () {
+ if (this._map) {
+ this.projectLatlngs();
+ this._updatePath();
+ }
+ return this;
+ }
+});
+
+L.Map.include({
+ _updatePathViewport: function () {
+ var p = L.Path.CLIP_PADDING,
+ size = this.getSize(),
+ panePos = L.DomUtil.getPosition(this._mapPane),
+ min = panePos.multiplyBy(-1)._subtract(size.multiplyBy(p)._round()),
+ max = min.add(size.multiplyBy(1 + p * 2)._round());
+
+ this._pathViewport = new L.Bounds(min, max);
+ }
+});
+
+
+/*
+ * Extends L.Path with SVG-specific rendering code.
+ */
+
+L.Path.SVG_NS = 'http://www.w3.org/2000/svg';
+
+L.Browser.svg = !!(document.createElementNS && document.createElementNS(L.Path.SVG_NS, 'svg').createSVGRect);
+
+L.Path = L.Path.extend({
+ statics: {
+ SVG: L.Browser.svg
+ },
+
+ bringToFront: function () {
+ var root = this._map._pathRoot,
+ path = this._container;
+
+ if (path && root.lastChild !== path) {
+ root.appendChild(path);
+ }
+ return this;
+ },
+
+ bringToBack: function () {
+ var root = this._map._pathRoot,
+ path = this._container,
+ first = root.firstChild;
+
+ if (path && first !== path) {
+ root.insertBefore(path, first);
+ }
+ return this;
+ },
+
+ getPathString: function () {
+ // form path string here
+ },
+
+ _createElement: function (name) {
+ return document.createElementNS(L.Path.SVG_NS, name);
+ },
+
+ _initElements: function () {
+ this._map._initPathRoot();
+ this._initPath();
+ this._initStyle();
+ },
+
+ _initPath: function () {
+ this._container = this._createElement('g');
+
+ this._path = this._createElement('path');
+
+ if (this.options.className) {
+ L.DomUtil.addClass(this._path, this.options.className);
+ }
+
+ this._container.appendChild(this._path);
+ },
+
+ _initStyle: function () {
+ if (this.options.stroke) {
+ this._path.setAttribute('stroke-linejoin', 'round');
+ this._path.setAttribute('stroke-linecap', 'round');
+ }
+ if (this.options.fill) {
+ this._path.setAttribute('fill-rule', 'evenodd');
+ }
+ if (this.options.pointerEvents) {
+ this._path.setAttribute('pointer-events', this.options.pointerEvents);
+ }
+ if (!this.options.clickable && !this.options.pointerEvents) {
+ this._path.setAttribute('pointer-events', 'none');
+ }
+ this._updateStyle();
+ },
+
+ _updateStyle: function () {
+ if (this.options.stroke) {
+ this._path.setAttribute('stroke', this.options.color);
+ this._path.setAttribute('stroke-opacity', this.options.opacity);
+ this._path.setAttribute('stroke-width', this.options.weight);
+ if (this.options.dashArray) {
+ this._path.setAttribute('stroke-dasharray', this.options.dashArray);
+ } else {
+ this._path.removeAttribute('stroke-dasharray');
+ }
+ if (this.options.lineCap) {
+ this._path.setAttribute('stroke-linecap', this.options.lineCap);
+ }
+ if (this.options.lineJoin) {
+ this._path.setAttribute('stroke-linejoin', this.options.lineJoin);
+ }
+ } else {
+ this._path.setAttribute('stroke', 'none');
+ }
+ if (this.options.fill) {
+ this._path.setAttribute('fill', this.options.fillColor || this.options.color);
+ this._path.setAttribute('fill-opacity', this.options.fillOpacity);
+ } else {
+ this._path.setAttribute('fill', 'none');
+ }
+ },
+
+ _updatePath: function () {
+ var str = this.getPathString();
+ if (!str) {
+ // fix webkit empty string parsing bug
+ str = 'M0 0';
+ }
+ this._path.setAttribute('d', str);
+ },
+
+ // TODO remove duplication with L.Map
+ _initEvents: function () {
+ if (this.options.clickable) {
+ if (L.Browser.svg || !L.Browser.vml) {
+ L.DomUtil.addClass(this._path, 'leaflet-clickable');
+ }
+
+ L.DomEvent.on(this._container, 'click', this._onMouseClick, this);
+
+ var events = ['dblclick', 'mousedown', 'mouseover',
+ 'mouseout', 'mousemove', 'contextmenu'];
+ for (var i = 0; i < events.length; i++) {
+ L.DomEvent.on(this._container, events[i], this._fireMouseEvent, this);
+ }
+ }
+ },
+
+ _onMouseClick: function (e) {
+ if (this._map.dragging && this._map.dragging.moved()) { return; }
+
+ this._fireMouseEvent(e);
+ },
+
+ _fireMouseEvent: function (e) {
+ if (!this.hasEventListeners(e.type)) { return; }
+
+ var map = this._map,
+ containerPoint = map.mouseEventToContainerPoint(e),
+ layerPoint = map.containerPointToLayerPoint(containerPoint),
+ latlng = map.layerPointToLatLng(layerPoint);
+
+ this.fire(e.type, {
+ latlng: latlng,
+ layerPoint: layerPoint,
+ containerPoint: containerPoint,
+ originalEvent: e
+ });
+
+ if (e.type === 'contextmenu') {
+ L.DomEvent.preventDefault(e);
+ }
+ if (e.type !== 'mousemove') {
+ L.DomEvent.stopPropagation(e);
+ }
+ }
+});
+
+L.Map.include({
+ _initPathRoot: function () {
+ if (!this._pathRoot) {
+ this._pathRoot = L.Path.prototype._createElement('svg');
+ this._panes.overlayPane.appendChild(this._pathRoot);
+
+ if (this.options.zoomAnimation && L.Browser.any3d) {
+ L.DomUtil.addClass(this._pathRoot, 'leaflet-zoom-animated');
+
+ this.on({
+ 'zoomanim': this._animatePathZoom,
+ 'zoomend': this._endPathZoom
+ });
+ } else {
+ L.DomUtil.addClass(this._pathRoot, 'leaflet-zoom-hide');
+ }
+
+ this.on('moveend', this._updateSvgViewport);
+ this._updateSvgViewport();
+ }
+ },
+
+ _animatePathZoom: function (e) {
+ var scale = this.getZoomScale(e.zoom),
+ offset = this._getCenterOffset(e.center)._multiplyBy(-scale)._add(this._pathViewport.min);
+
+ this._pathRoot.style[L.DomUtil.TRANSFORM] =
+ L.DomUtil.getTranslateString(offset) + ' scale(' + scale + ') ';
+
+ this._pathZooming = true;
+ },
+
+ _endPathZoom: function () {
+ this._pathZooming = false;
+ },
+
+ _updateSvgViewport: function () {
+
+ if (this._pathZooming) {
+ // Do not update SVGs while a zoom animation is going on otherwise the animation will break.
+ // When the zoom animation ends we will be updated again anyway
+ // This fixes the case where you do a momentum move and zoom while the move is still ongoing.
+ return;
+ }
+
+ this._updatePathViewport();
+
+ var vp = this._pathViewport,
+ min = vp.min,
+ max = vp.max,
+ width = max.x - min.x,
+ height = max.y - min.y,
+ root = this._pathRoot,
+ pane = this._panes.overlayPane;
+
+ // Hack to make flicker on drag end on mobile webkit less irritating
+ if (L.Browser.mobileWebkit) {
+ pane.removeChild(root);
+ }
+
+ L.DomUtil.setPosition(root, min);
+ root.setAttribute('width', width);
+ root.setAttribute('height', height);
+ root.setAttribute('viewBox', [min.x, min.y, width, height].join(' '));
+
+ if (L.Browser.mobileWebkit) {
+ pane.appendChild(root);
+ }
+ }
+});
+
+
+/*
+ * Popup extension to L.Path (polylines, polygons, circles), adding popup-related methods.
+ */
+
+L.Path.include({
+
+ bindPopup: function (content, options) {
+
+ if (content instanceof L.Popup) {
+ this._popup = content;
+ } else {
+ if (!this._popup || options) {
+ this._popup = new L.Popup(options, this);
+ }
+ this._popup.setContent(content);
+ }
+
+ if (!this._popupHandlersAdded) {
+ this
+ .on('click', this._openPopup, this)
+ .on('remove', this.closePopup, this);
+
+ this._popupHandlersAdded = true;
+ }
+
+ return this;
+ },
+
+ unbindPopup: function () {
+ if (this._popup) {
+ this._popup = null;
+ this
+ .off('click', this._openPopup)
+ .off('remove', this.closePopup);
+
+ this._popupHandlersAdded = false;
+ }
+ return this;
+ },
+
+ openPopup: function (latlng) {
+
+ if (this._popup) {
+ // open the popup from one of the path's points if not specified
+ latlng = latlng || this._latlng ||
+ this._latlngs[Math.floor(this._latlngs.length / 2)];
+
+ this._openPopup({latlng: latlng});
+ }
+
+ return this;
+ },
+
+ closePopup: function () {
+ if (this._popup) {
+ this._popup._close();
+ }
+ return this;
+ },
+
+ _openPopup: function (e) {
+ this._popup.setLatLng(e.latlng);
+ this._map.openPopup(this._popup);
+ }
+});
+
+
+/*
+ * Vector rendering for IE6-8 through VML.
+ * Thanks to Dmitry Baranovsky and his Raphael library for inspiration!
+ */
+
+L.Browser.vml = !L.Browser.svg && (function () {
+ try {
+ var div = document.createElement('div');
+ div.innerHTML = '<v:shape adj="1"/>';
+
+ var shape = div.firstChild;
+ shape.style.behavior = 'url(#default#VML)';
+
+ return shape && (typeof shape.adj === 'object');
+
+ } catch (e) {
+ return false;
+ }
+}());
+
+L.Path = L.Browser.svg || !L.Browser.vml ? L.Path : L.Path.extend({
+ statics: {
+ VML: true,
+ CLIP_PADDING: 0.02
+ },
+
+ _createElement: (function () {
+ try {
+ document.namespaces.add('lvml', 'urn:schemas-microsoft-com:vml');
+ return function (name) {
+ return document.createElement('<lvml:' + name + ' class="lvml">');
+ };
+ } catch (e) {
+ return function (name) {
+ return document.createElement(
+ '<' + name + ' xmlns="urn:schemas-microsoft.com:vml" class="lvml">');
+ };
+ }
+ }()),
+
+ _initPath: function () {
+ var container = this._container = this._createElement('shape');
+
+ L.DomUtil.addClass(container, 'leaflet-vml-shape' +
+ (this.options.className ? ' ' + this.options.className : ''));
+
+ if (this.options.clickable) {
+ L.DomUtil.addClass(container, 'leaflet-clickable');
+ }
+
+ container.coordsize = '1 1';
+
+ this._path = this._createElement('path');
+ container.appendChild(this._path);
+
+ this._map._pathRoot.appendChild(container);
+ },
+
+ _initStyle: function () {
+ this._updateStyle();
+ },
+
+ _updateStyle: function () {
+ var stroke = this._stroke,
+ fill = this._fill,
+ options = this.options,
+ container = this._container;
+
+ container.stroked = options.stroke;
+ container.filled = options.fill;
+
+ if (options.stroke) {
+ if (!stroke) {
+ stroke = this._stroke = this._createElement('stroke');
+ stroke.endcap = 'round';
+ container.appendChild(stroke);
+ }
+ stroke.weight = options.weight + 'px';
+ stroke.color = options.color;
+ stroke.opacity = options.opacity;
+
+ if (options.dashArray) {
+ stroke.dashStyle = L.Util.isArray(options.dashArray) ?
+ options.dashArray.join(' ') :
+ options.dashArray.replace(/( *, *)/g, ' ');
+ } else {
+ stroke.dashStyle = '';
+ }
+ if (options.lineCap) {
+ stroke.endcap = options.lineCap.replace('butt', 'flat');
+ }
+ if (options.lineJoin) {
+ stroke.joinstyle = options.lineJoin;
+ }
+
+ } else if (stroke) {
+ container.removeChild(stroke);
+ this._stroke = null;
+ }
+
+ if (options.fill) {
+ if (!fill) {
+ fill = this._fill = this._createElement('fill');
+ container.appendChild(fill);
+ }
+ fill.color = options.fillColor || options.color;
+ fill.opacity = options.fillOpacity;
+
+ } else if (fill) {
+ container.removeChild(fill);
+ this._fill = null;
+ }
+ },
+
+ _updatePath: function () {
+ var style = this._container.style;
+
+ style.display = 'none';
+ this._path.v = this.getPathString() + ' '; // the space fixes IE empty path string bug
+ style.display = '';
+ }
+});
+
+L.Map.include(L.Browser.svg || !L.Browser.vml ? {} : {
+ _initPathRoot: function () {
+ if (this._pathRoot) { return; }
+
+ var root = this._pathRoot = document.createElement('div');
+ root.className = 'leaflet-vml-container';
+ this._panes.overlayPane.appendChild(root);
+
+ this.on('moveend', this._updatePathViewport);
+ this._updatePathViewport();
+ }
+});
+
+
+/*
+ * Vector rendering for all browsers that support canvas.
+ */
+
+L.Browser.canvas = (function () {
+ return !!document.createElement('canvas').getContext;
+}());
+
+L.Path = (L.Path.SVG && !window.L_PREFER_CANVAS) || !L.Browser.canvas ? L.Path : L.Path.extend({
+ statics: {
+ //CLIP_PADDING: 0.02, // not sure if there's a need to set it to a small value
+ CANVAS: true,
+ SVG: false
+ },
+
+ redraw: function () {
+ if (this._map) {
+ this.projectLatlngs();
+ this._requestUpdate();
+ }
+ return this;
+ },
+
+ setStyle: function (style) {
+ L.setOptions(this, style);
+
+ if (this._map) {
+ this._updateStyle();
+ this._requestUpdate();
+ }
+ return this;
+ },
+
+ onRemove: function (map) {
+ map
+ .off('viewreset', this.projectLatlngs, this)
+ .off('moveend', this._updatePath, this);
+
+ if (this.options.clickable) {
+ this._map.off('click', this._onClick, this);
+ this._map.off('mousemove', this._onMouseMove, this);
+ }
+
+ this._requestUpdate();
+
+ this._map = null;
+ },
+
+ _requestUpdate: function () {
+ if (this._map && !L.Path._updateRequest) {
+ L.Path._updateRequest = L.Util.requestAnimFrame(this._fireMapMoveEnd, this._map);
+ }
+ },
+
+ _fireMapMoveEnd: function () {
+ L.Path._updateRequest = null;
+ this.fire('moveend');
+ },
+
+ _initElements: function () {
+ this._map._initPathRoot();
+ this._ctx = this._map._canvasCtx;
+ },
+
+ _updateStyle: function () {
+ var options = this.options;
+
+ if (options.stroke) {
+ this._ctx.lineWidth = options.weight;
+ this._ctx.strokeStyle = options.color;
+ }
+ if (options.fill) {
+ this._ctx.fillStyle = options.fillColor || options.color;
+ }
+ },
+
+ _drawPath: function () {
+ var i, j, len, len2, point, drawMethod;
+
+ this._ctx.beginPath();
+
+ for (i = 0, len = this._parts.length; i < len; i++) {
+ for (j = 0, len2 = this._parts[i].length; j < len2; j++) {
+ point = this._parts[i][j];
+ drawMethod = (j === 0 ? 'move' : 'line') + 'To';
+
+ this._ctx[drawMethod](point.x, point.y);
+ }
+ // TODO refactor ugly hack
+ if (this instanceof L.Polygon) {
+ this._ctx.closePath();
+ }
+ }
+ },
+
+ _checkIfEmpty: function () {
+ return !this._parts.length;
+ },
+
+ _updatePath: function () {
+ if (this._checkIfEmpty()) { return; }
+
+ var ctx = this._ctx,
+ options = this.options;
+
+ this._drawPath();
+ ctx.save();
+ this._updateStyle();
+
+ if (options.fill) {
+ ctx.globalAlpha = options.fillOpacity;
+ ctx.fill();
+ }
+
+ if (options.stroke) {
+ ctx.globalAlpha = options.opacity;
+ ctx.stroke();
+ }
+
+ ctx.restore();
+
+ // TODO optimization: 1 fill/stroke for all features with equal style instead of 1 for each feature
+ },
+
+ _initEvents: function () {
+ if (this.options.clickable) {
+ // TODO dblclick
+ this._map.on('mousemove', this._onMouseMove, this);
+ this._map.on('click', this._onClick, this);
+ }
+ },
+
+ _onClick: function (e) {
+ if (this._containsPoint(e.layerPoint)) {
+ this.fire('click', e);
+ }
+ },
+
+ _onMouseMove: function (e) {
+ if (!this._map || this._map._animatingZoom) { return; }
+
+ // TODO don't do on each move
+ if (this._containsPoint(e.layerPoint)) {
+ this._ctx.canvas.style.cursor = 'pointer';
+ this._mouseInside = true;
+ this.fire('mouseover', e);
+
+ } else if (this._mouseInside) {
+ this._ctx.canvas.style.cursor = '';
+ this._mouseInside = false;
+ this.fire('mouseout', e);
+ }
+ }
+});
+
+L.Map.include((L.Path.SVG && !window.L_PREFER_CANVAS) || !L.Browser.canvas ? {} : {
+ _initPathRoot: function () {
+ var root = this._pathRoot,
+ ctx;
+
+ if (!root) {
+ root = this._pathRoot = document.createElement('canvas');
+ root.style.position = 'absolute';
+ ctx = this._canvasCtx = root.getContext('2d');
+
+ ctx.lineCap = 'round';
+ ctx.lineJoin = 'round';
+
+ this._panes.overlayPane.appendChild(root);
+
+ if (this.options.zoomAnimation) {
+ this._pathRoot.className = 'leaflet-zoom-animated';
+ this.on('zoomanim', this._animatePathZoom);
+ this.on('zoomend', this._endPathZoom);
+ }
+ this.on('moveend', this._updateCanvasViewport);
+ this._updateCanvasViewport();
+ }
+ },
+
+ _updateCanvasViewport: function () {
+ // don't redraw while zooming. See _updateSvgViewport for more details
+ if (this._pathZooming) { return; }
+ this._updatePathViewport();
+
+ var vp = this._pathViewport,
+ min = vp.min,
+ size = vp.max.subtract(min),
+ root = this._pathRoot;
+
+ //TODO check if this works properly on mobile webkit
+ L.DomUtil.setPosition(root, min);
+ root.width = size.x;
+ root.height = size.y;
+ root.getContext('2d').translate(-min.x, -min.y);
+ }
+});
+
+
+/*
+ * L.LineUtil contains different utility functions for line segments
+ * and polylines (clipping, simplification, distances, etc.)
+ */
+
+/*jshint bitwise:false */ // allow bitwise operations for this file
+
+L.LineUtil = {
+
+ // Simplify polyline with vertex reduction and Douglas-Peucker simplification.
+ // Improves rendering performance dramatically by lessening the number of points to draw.
+
+ simplify: function (/*Point[]*/ points, /*Number*/ tolerance) {
+ if (!tolerance || !points.length) {
+ return points.slice();
+ }
+
+ var sqTolerance = tolerance * tolerance;
+
+ // stage 1: vertex reduction
+ points = this._reducePoints(points, sqTolerance);
+
+ // stage 2: Douglas-Peucker simplification
+ points = this._simplifyDP(points, sqTolerance);
+
+ return points;
+ },
+
+ // distance from a point to a segment between two points
+ pointToSegmentDistance: function (/*Point*/ p, /*Point*/ p1, /*Point*/ p2) {
+ return Math.sqrt(this._sqClosestPointOnSegment(p, p1, p2, true));
+ },
+
+ closestPointOnSegment: function (/*Point*/ p, /*Point*/ p1, /*Point*/ p2) {
+ return this._sqClosestPointOnSegment(p, p1, p2);
+ },
+
+ // Douglas-Peucker simplification, see http://en.wikipedia.org/wiki/Douglas-Peucker_algorithm
+ _simplifyDP: function (points, sqTolerance) {
+
+ var len = points.length,
+ ArrayConstructor = typeof Uint8Array !== undefined + '' ? Uint8Array : Array,
+ markers = new ArrayConstructor(len);
+
+ markers[0] = markers[len - 1] = 1;
+
+ this._simplifyDPStep(points, markers, sqTolerance, 0, len - 1);
+
+ var i,
+ newPoints = [];
+
+ for (i = 0; i < len; i++) {
+ if (markers[i]) {
+ newPoints.push(points[i]);
+ }
+ }
+
+ return newPoints;
+ },
+
+ _simplifyDPStep: function (points, markers, sqTolerance, first, last) {
+
+ var maxSqDist = 0,
+ index, i, sqDist;
+
+ for (i = first + 1; i <= last - 1; i++) {
+ sqDist = this._sqClosestPointOnSegment(points[i], points[first], points[last], true);
+
+ if (sqDist > maxSqDist) {
+ index = i;
+ maxSqDist = sqDist;
+ }
+ }
+
+ if (maxSqDist > sqTolerance) {
+ markers[index] = 1;
+
+ this._simplifyDPStep(points, markers, sqTolerance, first, index);
+ this._simplifyDPStep(points, markers, sqTolerance, index, last);
+ }
+ },
+
+ // reduce points that are too close to each other to a single point
+ _reducePoints: function (points, sqTolerance) {
+ var reducedPoints = [points[0]];
+
+ for (var i = 1, prev = 0, len = points.length; i < len; i++) {
+ if (this._sqDist(points[i], points[prev]) > sqTolerance) {
+ reducedPoints.push(points[i]);
+ prev = i;
+ }
+ }
+ if (prev < len - 1) {
+ reducedPoints.push(points[len - 1]);
+ }
+ return reducedPoints;
+ },
+
+ // Cohen-Sutherland line clipping algorithm.
+ // Used to avoid rendering parts of a polyline that are not currently visible.
+
+ clipSegment: function (a, b, bounds, useLastCode) {
+ var codeA = useLastCode ? this._lastCode : this._getBitCode(a, bounds),
+ codeB = this._getBitCode(b, bounds),
+
+ codeOut, p, newCode;
+
+ // save 2nd code to avoid calculating it on the next segment
+ this._lastCode = codeB;
+
+ while (true) {
+ // if a,b is inside the clip window (trivial accept)
+ if (!(codeA | codeB)) {
+ return [a, b];
+ // if a,b is outside the clip window (trivial reject)
+ } else if (codeA & codeB) {
+ return false;
+ // other cases
+ } else {
+ codeOut = codeA || codeB;
+ p = this._getEdgeIntersection(a, b, codeOut, bounds);
+ newCode = this._getBitCode(p, bounds);
+
+ if (codeOut === codeA) {
+ a = p;
+ codeA = newCode;
+ } else {
+ b = p;
+ codeB = newCode;
+ }
+ }
+ }
+ },
+
+ _getEdgeIntersection: function (a, b, code, bounds) {
+ var dx = b.x - a.x,
+ dy = b.y - a.y,
+ min = bounds.min,
+ max = bounds.max;
+
+ if (code & 8) { // top
+ return new L.Point(a.x + dx * (max.y - a.y) / dy, max.y);
+ } else if (code & 4) { // bottom
+ return new L.Point(a.x + dx * (min.y - a.y) / dy, min.y);
+ } else if (code & 2) { // right
+ return new L.Point(max.x, a.y + dy * (max.x - a.x) / dx);
+ } else if (code & 1) { // left
+ return new L.Point(min.x, a.y + dy * (min.x - a.x) / dx);
+ }
+ },
+
+ _getBitCode: function (/*Point*/ p, bounds) {
+ var code = 0;
+
+ if (p.x < bounds.min.x) { // left
+ code |= 1;
+ } else if (p.x > bounds.max.x) { // right
+ code |= 2;
+ }
+ if (p.y < bounds.min.y) { // bottom
+ code |= 4;
+ } else if (p.y > bounds.max.y) { // top
+ code |= 8;
+ }
+
+ return code;
+ },
+
+ // square distance (to avoid unnecessary Math.sqrt calls)
+ _sqDist: function (p1, p2) {
+ var dx = p2.x - p1.x,
+ dy = p2.y - p1.y;
+ return dx * dx + dy * dy;
+ },
+
+ // return closest point on segment or distance to that point
+ _sqClosestPointOnSegment: function (p, p1, p2, sqDist) {
+ var x = p1.x,
+ y = p1.y,
+ dx = p2.x - x,
+ dy = p2.y - y,
+ dot = dx * dx + dy * dy,
+ t;
+
+ if (dot > 0) {
+ t = ((p.x - x) * dx + (p.y - y) * dy) / dot;
+
+ if (t > 1) {
+ x = p2.x;
+ y = p2.y;
+ } else if (t > 0) {
+ x += dx * t;
+ y += dy * t;
+ }
+ }
+
+ dx = p.x - x;
+ dy = p.y - y;
+
+ return sqDist ? dx * dx + dy * dy : new L.Point(x, y);
+ }
+};
+
+
+/*
+ * L.Polyline is used to display polylines on a map.
+ */
+
+L.Polyline = L.Path.extend({
+ initialize: function (latlngs, options) {
+ L.Path.prototype.initialize.call(this, options);
+
+ this._latlngs = this._convertLatLngs(latlngs);
+ },
+
+ options: {
+ // how much to simplify the polyline on each zoom level
+ // more = better performance and smoother look, less = more accurate
+ smoothFactor: 1.0,
+ noClip: false
+ },
+
+ projectLatlngs: function () {
+ this._originalPoints = [];
+
+ for (var i = 0, len = this._latlngs.length; i < len; i++) {
+ this._originalPoints[i] = this._map.latLngToLayerPoint(this._latlngs[i]);
+ }
+ },
+
+ getPathString: function () {
+ for (var i = 0, len = this._parts.length, str = ''; i < len; i++) {
+ str += this._getPathPartStr(this._parts[i]);
+ }
+ return str;
+ },
+
+ getLatLngs: function () {
+ return this._latlngs;
+ },
+
+ setLatLngs: function (latlngs) {
+ this._latlngs = this._convertLatLngs(latlngs);
+ return this.redraw();
+ },
+
+ addLatLng: function (latlng) {
+ this._latlngs.push(L.latLng(latlng));
+ return this.redraw();
+ },
+
+ spliceLatLngs: function () { // (Number index, Number howMany)
+ var removed = [].splice.apply(this._latlngs, arguments);
+ this._convertLatLngs(this._latlngs, true);
+ this.redraw();
+ return removed;
+ },
+
+ closestLayerPoint: function (p) {
+ var minDistance = Infinity, parts = this._parts, p1, p2, minPoint = null;
+
+ for (var j = 0, jLen = parts.length; j < jLen; j++) {
+ var points = parts[j];
+ for (var i = 1, len = points.length; i < len; i++) {
+ p1 = points[i - 1];
+ p2 = points[i];
+ var sqDist = L.LineUtil._sqClosestPointOnSegment(p, p1, p2, true);
+ if (sqDist < minDistance) {
+ minDistance = sqDist;
+ minPoint = L.LineUtil._sqClosestPointOnSegment(p, p1, p2);
+ }
+ }
+ }
+ if (minPoint) {
+ minPoint.distance = Math.sqrt(minDistance);
+ }
+ return minPoint;
+ },
+
+ getBounds: function () {
+ return new L.LatLngBounds(this.getLatLngs());
+ },
+
+ _convertLatLngs: function (latlngs, overwrite) {
+ var i, len, target = overwrite ? latlngs : [];
+
+ for (i = 0, len = latlngs.length; i < len; i++) {
+ if (L.Util.isArray(latlngs[i]) && typeof latlngs[i][0] !== 'number') {
+ return;
+ }
+ target[i] = L.latLng(latlngs[i]);
+ }
+ return target;
+ },
+
+ _initEvents: function () {
+ L.Path.prototype._initEvents.call(this);
+ },
+
+ _getPathPartStr: function (points) {
+ var round = L.Path.VML;
+
+ for (var j = 0, len2 = points.length, str = '', p; j < len2; j++) {
+ p = points[j];
+ if (round) {
+ p._round();
+ }
+ str += (j ? 'L' : 'M') + p.x + ' ' + p.y;
+ }
+ return str;
+ },
+
+ _clipPoints: function () {
+ var points = this._originalPoints,
+ len = points.length,
+ i, k, segment;
+
+ if (this.options.noClip) {
+ this._parts = [points];
+ return;
+ }
+
+ this._parts = [];
+
+ var parts = this._parts,
+ vp = this._map._pathViewport,
+ lu = L.LineUtil;
+
+ for (i = 0, k = 0; i < len - 1; i++) {
+ segment = lu.clipSegment(points[i], points[i + 1], vp, i);
+ if (!segment) {
+ continue;
+ }
+
+ parts[k] = parts[k] || [];
+ parts[k].push(segment[0]);
+
+ // if segment goes out of screen, or it's the last one, it's the end of the line part
+ if ((segment[1] !== points[i + 1]) || (i === len - 2)) {
+ parts[k].push(segment[1]);
+ k++;
+ }
+ }
+ },
+
+ // simplify each clipped part of the polyline
+ _simplifyPoints: function () {
+ var parts = this._parts,
+ lu = L.LineUtil;
+
+ for (var i = 0, len = parts.length; i < len; i++) {
+ parts[i] = lu.simplify(parts[i], this.options.smoothFactor);
+ }
+ },
+
+ _updatePath: function () {
+ if (!this._map) { return; }
+
+ this._clipPoints();
+ this._simplifyPoints();
+
+ L.Path.prototype._updatePath.call(this);
+ }
+});
+
+L.polyline = function (latlngs, options) {
+ return new L.Polyline(latlngs, options);
+};
+
+
+/*
+ * L.PolyUtil contains utility functions for polygons (clipping, etc.).
+ */
+
+/*jshint bitwise:false */ // allow bitwise operations here
+
+L.PolyUtil = {};
+
+/*
+ * Sutherland-Hodgeman polygon clipping algorithm.
+ * Used to avoid rendering parts of a polygon that are not currently visible.
+ */
+L.PolyUtil.clipPolygon = function (points, bounds) {
+ var clippedPoints,
+ edges = [1, 4, 2, 8],
+ i, j, k,
+ a, b,
+ len, edge, p,
+ lu = L.LineUtil;
+
+ for (i = 0, len = points.length; i < len; i++) {
+ points[i]._code = lu._getBitCode(points[i], bounds);
+ }
+
+ // for each edge (left, bottom, right, top)
+ for (k = 0; k < 4; k++) {
+ edge = edges[k];
+ clippedPoints = [];
+
+ for (i = 0, len = points.length, j = len - 1; i < len; j = i++) {
+ a = points[i];
+ b = points[j];
+
+ // if a is inside the clip window
+ if (!(a._code & edge)) {
+ // if b is outside the clip window (a->b goes out of screen)
+ if (b._code & edge) {
+ p = lu._getEdgeIntersection(b, a, edge, bounds);
+ p._code = lu._getBitCode(p, bounds);
+ clippedPoints.push(p);
+ }
+ clippedPoints.push(a);
+
+ // else if b is inside the clip window (a->b enters the screen)
+ } else if (!(b._code & edge)) {
+ p = lu._getEdgeIntersection(b, a, edge, bounds);
+ p._code = lu._getBitCode(p, bounds);
+ clippedPoints.push(p);
+ }
+ }
+ points = clippedPoints;
+ }
+
+ return points;
+};
+
+
+/*
+ * L.Polygon is used to display polygons on a map.
+ */
+
+L.Polygon = L.Polyline.extend({
+ options: {
+ fill: true
+ },
+
+ initialize: function (latlngs, options) {
+ L.Polyline.prototype.initialize.call(this, latlngs, options);
+ this._initWithHoles(latlngs);
+ },
+
+ _initWithHoles: function (latlngs) {
+ var i, len, hole;
+ if (latlngs && L.Util.isArray(latlngs[0]) && (typeof latlngs[0][0] !== 'number')) {
+ this._latlngs = this._convertLatLngs(latlngs[0]);
+ this._holes = latlngs.slice(1);
+
+ for (i = 0, len = this._holes.length; i < len; i++) {
+ hole = this._holes[i] = this._convertLatLngs(this._holes[i]);
+ if (hole[0].equals(hole[hole.length - 1])) {
+ hole.pop();
+ }
+ }
+ }
+
+ // filter out last point if its equal to the first one
+ latlngs = this._latlngs;
+
+ if (latlngs.length >= 2 && latlngs[0].equals(latlngs[latlngs.length - 1])) {
+ latlngs.pop();
+ }
+ },
+
+ projectLatlngs: function () {
+ L.Polyline.prototype.projectLatlngs.call(this);
+
+ // project polygon holes points
+ // TODO move this logic to Polyline to get rid of duplication
+ this._holePoints = [];
+
+ if (!this._holes) { return; }
+
+ var i, j, len, len2;
+
+ for (i = 0, len = this._holes.length; i < len; i++) {
+ this._holePoints[i] = [];
+
+ for (j = 0, len2 = this._holes[i].length; j < len2; j++) {
+ this._holePoints[i][j] = this._map.latLngToLayerPoint(this._holes[i][j]);
+ }
+ }
+ },
+
+ setLatLngs: function (latlngs) {
+ if (latlngs && L.Util.isArray(latlngs[0]) && (typeof latlngs[0][0] !== 'number')) {
+ this._initWithHoles(latlngs);
+ return this.redraw();
+ } else {
+ return L.Polyline.prototype.setLatLngs.call(this, latlngs);
+ }
+ },
+
+ _clipPoints: function () {
+ var points = this._originalPoints,
+ newParts = [];
+
+ this._parts = [points].concat(this._holePoints);
+
+ if (this.options.noClip) { return; }
+
+ for (var i = 0, len = this._parts.length; i < len; i++) {
+ var clipped = L.PolyUtil.clipPolygon(this._parts[i], this._map._pathViewport);
+ if (clipped.length) {
+ newParts.push(clipped);
+ }
+ }
+
+ this._parts = newParts;
+ },
+
+ _getPathPartStr: function (points) {
+ var str = L.Polyline.prototype._getPathPartStr.call(this, points);
+ return str + (L.Browser.svg ? 'z' : 'x');
+ }
+});
+
+L.polygon = function (latlngs, options) {
+ return new L.Polygon(latlngs, options);
+};
+
+
+/*
+ * Contains L.MultiPolyline and L.MultiPolygon layers.
+ */
+
+(function () {
+ function createMulti(Klass) {
+
+ return L.FeatureGroup.extend({
+
+ initialize: function (latlngs, options) {
+ this._layers = {};
+ this._options = options;
+ this.setLatLngs(latlngs);
+ },
+
+ setLatLngs: function (latlngs) {
+ var i = 0,
+ len = latlngs.length;
+
+ this.eachLayer(function (layer) {
+ if (i < len) {
+ layer.setLatLngs(latlngs[i++]);
+ } else {
+ this.removeLayer(layer);
+ }
+ }, this);
+
+ while (i < len) {
+ this.addLayer(new Klass(latlngs[i++], this._options));
+ }
+
+ return this;
+ },
+
+ getLatLngs: function () {
+ var latlngs = [];
+
+ this.eachLayer(function (layer) {
+ latlngs.push(layer.getLatLngs());
+ });
+
+ return latlngs;
+ }
+ });
+ }
+
+ L.MultiPolyline = createMulti(L.Polyline);
+ L.MultiPolygon = createMulti(L.Polygon);
+
+ L.multiPolyline = function (latlngs, options) {
+ return new L.MultiPolyline(latlngs, options);
+ };
+
+ L.multiPolygon = function (latlngs, options) {
+ return new L.MultiPolygon(latlngs, options);
+ };
+}());
+
+
+/*
+ * L.Rectangle extends Polygon and creates a rectangle when passed a LatLngBounds object.
+ */
+
+L.Rectangle = L.Polygon.extend({
+ initialize: function (latLngBounds, options) {
+ L.Polygon.prototype.initialize.call(this, this._boundsToLatLngs(latLngBounds), options);
+ },
+
+ setBounds: function (latLngBounds) {
+ this.setLatLngs(this._boundsToLatLngs(latLngBounds));
+ },
+
+ _boundsToLatLngs: function (latLngBounds) {
+ latLngBounds = L.latLngBounds(latLngBounds);
+ return [
+ latLngBounds.getSouthWest(),
+ latLngBounds.getNorthWest(),
+ latLngBounds.getNorthEast(),
+ latLngBounds.getSouthEast()
+ ];
+ }
+});
+
+L.rectangle = function (latLngBounds, options) {
+ return new L.Rectangle(latLngBounds, options);
+};
+
+
+/*
+ * L.Circle is a circle overlay (with a certain radius in meters).
+ */
+
+L.Circle = L.Path.extend({
+ initialize: function (latlng, radius, options) {
+ L.Path.prototype.initialize.call(this, options);
+
+ this._latlng = L.latLng(latlng);
+ this._mRadius = radius;
+ },
+
+ options: {
+ fill: true
+ },
+
+ setLatLng: function (latlng) {
+ this._latlng = L.latLng(latlng);
+ return this.redraw();
+ },
+
+ setRadius: function (radius) {
+ this._mRadius = radius;
+ return this.redraw();
+ },
+
+ projectLatlngs: function () {
+ var lngRadius = this._getLngRadius(),
+ latlng = this._latlng,
+ pointLeft = this._map.latLngToLayerPoint([latlng.lat, latlng.lng - lngRadius]);
+
+ this._point = this._map.latLngToLayerPoint(latlng);
+ this._radius = Math.max(this._point.x - pointLeft.x, 1);
+ },
+
+ getBounds: function () {
+ var lngRadius = this._getLngRadius(),
+ latRadius = (this._mRadius / 40075017) * 360,
+ latlng = this._latlng;
+
+ return new L.LatLngBounds(
+ [latlng.lat - latRadius, latlng.lng - lngRadius],
+ [latlng.lat + latRadius, latlng.lng + lngRadius]);
+ },
+
+ getLatLng: function () {
+ return this._latlng;
+ },
+
+ getPathString: function () {
+ var p = this._point,
+ r = this._radius;
+
+ if (this._checkIfEmpty()) {
+ return '';
+ }
+
+ if (L.Browser.svg) {
+ return 'M' + p.x + ',' + (p.y - r) +
+ 'A' + r + ',' + r + ',0,1,1,' +
+ (p.x - 0.1) + ',' + (p.y - r) + ' z';
+ } else {
+ p._round();
+ r = Math.round(r);
+ return 'AL ' + p.x + ',' + p.y + ' ' + r + ',' + r + ' 0,' + (65535 * 360);
+ }
+ },
+
+ getRadius: function () {
+ return this._mRadius;
+ },
+
+ // TODO Earth hardcoded, move into projection code!
+
+ _getLatRadius: function () {
+ return (this._mRadius / 40075017) * 360;
+ },
+
+ _getLngRadius: function () {
+ return this._getLatRadius() / Math.cos(L.LatLng.DEG_TO_RAD * this._latlng.lat);
+ },
+
+ _checkIfEmpty: function () {
+ if (!this._map) {
+ return false;
+ }
+ var vp = this._map._pathViewport,
+ r = this._radius,
+ p = this._point;
+
+ return p.x - r > vp.max.x || p.y - r > vp.max.y ||
+ p.x + r < vp.min.x || p.y + r < vp.min.y;
+ }
+});
+
+L.circle = function (latlng, radius, options) {
+ return new L.Circle(latlng, radius, options);
+};
+
+
+/*
+ * L.CircleMarker is a circle overlay with a permanent pixel radius.
+ */
+
+L.CircleMarker = L.Circle.extend({
+ options: {
+ radius: 10,
+ weight: 2
+ },
+
+ initialize: function (latlng, options) {
+ L.Circle.prototype.initialize.call(this, latlng, null, options);
+ this._radius = this.options.radius;
+ },
+
+ projectLatlngs: function () {
+ this._point = this._map.latLngToLayerPoint(this._latlng);
+ },
+
+ _updateStyle : function () {
+ L.Circle.prototype._updateStyle.call(this);
+ this.setRadius(this.options.radius);
+ },
+
+ setLatLng: function (latlng) {
+ L.Circle.prototype.setLatLng.call(this, latlng);
+ if (this._popup && this._popup._isOpen) {
+ this._popup.setLatLng(latlng);
+ }
+ return this;
+ },
+
+ setRadius: function (radius) {
+ this.options.radius = this._radius = radius;
+ return this.redraw();
+ },
+
+ getRadius: function () {
+ return this._radius;
+ }
+});
+
+L.circleMarker = function (latlng, options) {
+ return new L.CircleMarker(latlng, options);
+};
+
+
+/*
+ * Extends L.Polyline to be able to manually detect clicks on Canvas-rendered polylines.
+ */
+
+L.Polyline.include(!L.Path.CANVAS ? {} : {
+ _containsPoint: function (p, closed) {
+ var i, j, k, len, len2, dist, part,
+ w = this.options.weight / 2;
+
+ if (L.Browser.touch) {
+ w += 10; // polyline click tolerance on touch devices
+ }
+
+ for (i = 0, len = this._parts.length; i < len; i++) {
+ part = this._parts[i];
+ for (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) {
+ if (!closed && (j === 0)) {
+ continue;
+ }
+
+ dist = L.LineUtil.pointToSegmentDistance(p, part[k], part[j]);
+
+ if (dist <= w) {
+ return true;
+ }
+ }
+ }
+ return false;
+ }
+});
+
+
+/*
+ * Extends L.Polygon to be able to manually detect clicks on Canvas-rendered polygons.
+ */
+
+L.Polygon.include(!L.Path.CANVAS ? {} : {
+ _containsPoint: function (p) {
+ var inside = false,
+ part, p1, p2,
+ i, j, k,
+ len, len2;
+
+ // TODO optimization: check if within bounds first
+
+ if (L.Polyline.prototype._containsPoint.call(this, p, true)) {
+ // click on polygon border
+ return true;
+ }
+
+ // ray casting algorithm for detecting if point is in polygon
+
+ for (i = 0, len = this._parts.length; i < len; i++) {
+ part = this._parts[i];
+
+ for (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) {
+ p1 = part[j];
+ p2 = part[k];
+
+ if (((p1.y > p.y) !== (p2.y > p.y)) &&
+ (p.x < (p2.x - p1.x) * (p.y - p1.y) / (p2.y - p1.y) + p1.x)) {
+ inside = !inside;
+ }
+ }
+ }
+
+ return inside;
+ }
+});
+
+
+/*
+ * Extends L.Circle with Canvas-specific code.
+ */
+
+L.Circle.include(!L.Path.CANVAS ? {} : {
+ _drawPath: function () {
+ var p = this._point;
+ this._ctx.beginPath();
+ this._ctx.arc(p.x, p.y, this._radius, 0, Math.PI * 2, false);
+ },
+
+ _containsPoint: function (p) {
+ var center = this._point,
+ w2 = this.options.stroke ? this.options.weight / 2 : 0;
+
+ return (p.distanceTo(center) <= this._radius + w2);
+ }
+});
+
+
+/*
+ * CircleMarker canvas specific drawing parts.
+ */
+
+L.CircleMarker.include(!L.Path.CANVAS ? {} : {
+ _updateStyle: function () {
+ L.Path.prototype._updateStyle.call(this);
+ }
+});
+
+
+/*
+ * L.GeoJSON turns any GeoJSON data into a Leaflet layer.
+ */
+
+L.GeoJSON = L.FeatureGroup.extend({
+
+ initialize: function (geojson, options) {
+ L.setOptions(this, options);
+
+ this._layers = {};
+
+ if (geojson) {
+ this.addData(geojson);
+ }
+ },
+
+ addData: function (geojson) {
+ var features = L.Util.isArray(geojson) ? geojson : geojson.features,
+ i, len, feature;
+
+ if (features) {
+ for (i = 0, len = features.length; i < len; i++) {
+ // Only add this if geometry or geometries are set and not null
+ feature = features[i];
+ if (feature.geometries || feature.geometry || feature.features || feature.coordinates) {
+ this.addData(features[i]);
+ }
+ }
+ return this;
+ }
+
+ var options = this.options;
+
+ if (options.filter && !options.filter(geojson)) { return; }
+
+ var layer = L.GeoJSON.geometryToLayer(geojson, options.pointToLayer, options.coordsToLatLng, options);
+ layer.feature = L.GeoJSON.asFeature(geojson);
+
+ layer.defaultOptions = layer.options;
+ this.resetStyle(layer);
+
+ if (options.onEachFeature) {
+ options.onEachFeature(geojson, layer);
+ }
+
+ return this.addLayer(layer);
+ },
+
+ resetStyle: function (layer) {
+ var style = this.options.style;
+ if (style) {
+ // reset any custom styles
+ L.Util.extend(layer.options, layer.defaultOptions);
+
+ this._setLayerStyle(layer, style);
+ }
+ },
+
+ setStyle: function (style) {
+ this.eachLayer(function (layer) {
+ this._setLayerStyle(layer, style);
+ }, this);
+ },
+
+ _setLayerStyle: function (layer, style) {
+ if (typeof style === 'function') {
+ style = style(layer.feature);
+ }
+ if (layer.setStyle) {
+ layer.setStyle(style);
+ }
+ }
+});
+
+L.extend(L.GeoJSON, {
+ geometryToLayer: function (geojson, pointToLayer, coordsToLatLng, vectorOptions) {
+ var geometry = geojson.type === 'Feature' ? geojson.geometry : geojson,
+ coords = geometry.coordinates,
+ layers = [],
+ latlng, latlngs, i, len;
+
+ coordsToLatLng = coordsToLatLng || this.coordsToLatLng;
+
+ switch (geometry.type) {
+ case 'Point':
+ latlng = coordsToLatLng(coords);
+ return pointToLayer ? pointToLayer(geojson, latlng) : new L.Marker(latlng);
+
+ case 'MultiPoint':
+ for (i = 0, len = coords.length; i < len; i++) {
+ latlng = coordsToLatLng(coords[i]);
+ layers.push(pointToLayer ? pointToLayer(geojson, latlng) : new L.Marker(latlng));
+ }
+ return new L.FeatureGroup(layers);
+
+ case 'LineString':
+ latlngs = this.coordsToLatLngs(coords, 0, coordsToLatLng);
+ return new L.Polyline(latlngs, vectorOptions);
+
+ case 'Polygon':
+ if (coords.length === 2 && !coords[1].length) {
+ throw new Error('Invalid GeoJSON object.');
+ }
+ latlngs = this.coordsToLatLngs(coords, 1, coordsToLatLng);
+ return new L.Polygon(latlngs, vectorOptions);
+
+ case 'MultiLineString':
+ latlngs = this.coordsToLatLngs(coords, 1, coordsToLatLng);
+ return new L.MultiPolyline(latlngs, vectorOptions);
+
+ case 'MultiPolygon':
+ latlngs = this.coordsToLatLngs(coords, 2, coordsToLatLng);
+ return new L.MultiPolygon(latlngs, vectorOptions);
+
+ case 'GeometryCollection':
+ for (i = 0, len = geometry.geometries.length; i < len; i++) {
+
+ layers.push(this.geometryToLayer({
+ geometry: geometry.geometries[i],
+ type: 'Feature',
+ properties: geojson.properties
+ }, pointToLayer, coordsToLatLng, vectorOptions));
+ }
+ return new L.FeatureGroup(layers);
+
+ default:
+ throw new Error('Invalid GeoJSON object.');
+ }
+ },
+
+ coordsToLatLng: function (coords) { // (Array[, Boolean]) -> LatLng
+ return new L.LatLng(coords[1], coords[0], coords[2]);
+ },
+
+ coordsToLatLngs: function (coords, levelsDeep, coordsToLatLng) { // (Array[, Number, Function]) -> Array
+ var latlng, i, len,
+ latlngs = [];
+
+ for (i = 0, len = coords.length; i < len; i++) {
+ latlng = levelsDeep ?
+ this.coordsToLatLngs(coords[i], levelsDeep - 1, coordsToLatLng) :
+ (coordsToLatLng || this.coordsToLatLng)(coords[i]);
+
+ latlngs.push(latlng);
+ }
+
+ return latlngs;
+ },
+
+ latLngToCoords: function (latlng) {
+ var coords = [latlng.lng, latlng.lat];
+
+ if (latlng.alt !== undefined) {
+ coords.push(latlng.alt);
+ }
+ return coords;
+ },
+
+ latLngsToCoords: function (latLngs) {
+ var coords = [];
+
+ for (var i = 0, len = latLngs.length; i < len; i++) {
+ coords.push(L.GeoJSON.latLngToCoords(latLngs[i]));
+ }
+
+ return coords;
+ },
+
+ getFeature: function (layer, newGeometry) {
+ return layer.feature ? L.extend({}, layer.feature, {geometry: newGeometry}) : L.GeoJSON.asFeature(newGeometry);
+ },
+
+ asFeature: function (geoJSON) {
+ if (geoJSON.type === 'Feature') {
+ return geoJSON;
+ }
+
+ return {
+ type: 'Feature',
+ properties: {},
+ geometry: geoJSON
+ };
+ }
+});
+
+var PointToGeoJSON = {
+ toGeoJSON: function () {
+ return L.GeoJSON.getFeature(this, {
+ type: 'Point',
+ coordinates: L.GeoJSON.latLngToCoords(this.getLatLng())
+ });
+ }
+};
+
+L.Marker.include(PointToGeoJSON);
+L.Circle.include(PointToGeoJSON);
+L.CircleMarker.include(PointToGeoJSON);
+
+L.Polyline.include({
+ toGeoJSON: function () {
+ return L.GeoJSON.getFeature(this, {
+ type: 'LineString',
+ coordinates: L.GeoJSON.latLngsToCoords(this.getLatLngs())
+ });
+ }
+});
+
+L.Polygon.include({
+ toGeoJSON: function () {
+ var coords = [L.GeoJSON.latLngsToCoords(this.getLatLngs())],
+ i, len, hole;
+
+ coords[0].push(coords[0][0]);
+
+ if (this._holes) {
+ for (i = 0, len = this._holes.length; i < len; i++) {
+ hole = L.GeoJSON.latLngsToCoords(this._holes[i]);
+ hole.push(hole[0]);
+ coords.push(hole);
+ }
+ }
+
+ return L.GeoJSON.getFeature(this, {
+ type: 'Polygon',
+ coordinates: coords
+ });
+ }
+});
+
+(function () {
+ function multiToGeoJSON(type) {
+ return function () {
+ var coords = [];
+
+ this.eachLayer(function (layer) {
+ coords.push(layer.toGeoJSON().geometry.coordinates);
+ });
+
+ return L.GeoJSON.getFeature(this, {
+ type: type,
+ coordinates: coords
+ });
+ };
+ }
+
+ L.MultiPolyline.include({toGeoJSON: multiToGeoJSON('MultiLineString')});
+ L.MultiPolygon.include({toGeoJSON: multiToGeoJSON('MultiPolygon')});
+
+ L.LayerGroup.include({
+ toGeoJSON: function () {
+
+ var geometry = this.feature && this.feature.geometry,
+ jsons = [],
+ json;
+
+ if (geometry && geometry.type === 'MultiPoint') {
+ return multiToGeoJSON('MultiPoint').call(this);
+ }
+
+ var isGeometryCollection = geometry && geometry.type === 'GeometryCollection';
+
+ this.eachLayer(function (layer) {
+ if (layer.toGeoJSON) {
+ json = layer.toGeoJSON();
+ jsons.push(isGeometryCollection ? json.geometry : L.GeoJSON.asFeature(json));
+ }
+ });
+
+ if (isGeometryCollection) {
+ return L.GeoJSON.getFeature(this, {
+ geometries: jsons,
+ type: 'GeometryCollection'
+ });
+ }
+
+ return {
+ type: 'FeatureCollection',
+ features: jsons
+ };
+ }
+ });
+}());
+
+L.geoJson = function (geojson, options) {
+ return new L.GeoJSON(geojson, options);
projects / rails.git / blobdiff