| /* Copyright (c) 2006-2010 by OpenLayers Contributors (see authors.txt for | |
| * full list of contributors). Published under the Clear BSD license. | |
| * See http://svn.openlayers.org/trunk/openlayers/license.txt for the | |
| * full text of the license. */ | |
| /** | |
| * @requires OpenLayers/Layer/SphericalMercator.js | |
| * @requires OpenLayers/Layer/EventPane.js | |
| * @requires OpenLayers/Layer/FixedZoomLevels.js | |
| */ | |
| /** | |
| * Class: OpenLayers.Layer.VirtualEarth | |
| * | |
| * Inherits from: | |
| * - <OpenLayers.Layer.EventPane> | |
| * - <OpenLayers.Layer.FixedZoomLevels> | |
| */ | |
| OpenLayers.Layer.VirtualEarth = OpenLayers.Class( | |
| OpenLayers.Layer.EventPane, | |
| OpenLayers.Layer.FixedZoomLevels, { | |
| /** | |
| * Constant: MIN_ZOOM_LEVEL | |
| * {Integer} 1 | |
| */ | |
| MIN_ZOOM_LEVEL: 1, | |
| /** | |
| * Constant: MAX_ZOOM_LEVEL | |
| * {Integer} 19 | |
| */ | |
| MAX_ZOOM_LEVEL: 19, | |
| /** | |
| * Constant: RESOLUTIONS | |
| * {Array(Float)} Hardcode these resolutions so that they are more closely | |
| * tied with the standard wms projection | |
| */ | |
| RESOLUTIONS: [ | |
| 1.40625, | |
| 0.703125, | |
| 0.3515625, | |
| 0.17578125, | |
| 0.087890625, | |
| 0.0439453125, | |
| 0.02197265625, | |
| 0.010986328125, | |
| 0.0054931640625, | |
| 0.00274658203125, | |
| 0.001373291015625, | |
| 0.0006866455078125, | |
| 0.00034332275390625, | |
| 0.000171661376953125, | |
| 0.0000858306884765625, | |
| 0.00004291534423828125, | |
| 0.00002145767211914062, | |
| 0.00001072883605957031, | |
| 0.00000536441802978515 | |
| ], | |
| /** | |
| * APIProperty: type | |
| * {VEMapType} | |
| */ | |
| type: null, | |
| /** | |
| * APIProperty: wrapDateLine | |
| * {Boolean} Allow user to pan forever east/west. Default is true. | |
| * Setting this to false only restricts panning if | |
| * <sphericalMercator> is true. | |
| */ | |
| wrapDateLine: true, | |
| /** | |
| * APIProperty: sphericalMercator | |
| * {Boolean} Should the map act as a mercator-projected map? This will | |
| * cause all interactions with the map to be in the actual map | |
| * projection, which allows support for vector drawing, overlaying | |
| * other maps, etc. | |
| */ | |
| sphericalMercator: false, | |
| /** | |
| * APIProperty: animationEnabled | |
| * {Boolean} If set to true, the transition between zoom levels will be | |
| * animated. Set to false to match the zooming experience of other | |
| * layer types. Default is true. | |
| */ | |
| animationEnabled: true, | |
| /** | |
| * Constructor: OpenLayers.Layer.VirtualEarth | |
| * | |
| * Parameters: | |
| * name - {String} | |
| * options - {Object} | |
| */ | |
| initialize: function(name, options) { | |
| OpenLayers.Layer.EventPane.prototype.initialize.apply(this, arguments); | |
| OpenLayers.Layer.FixedZoomLevels.prototype.initialize.apply(this, | |
| arguments); | |
| if(this.sphericalMercator) { | |
| OpenLayers.Util.extend(this, OpenLayers.Layer.SphericalMercator); | |
| this.initMercatorParameters(); | |
| } | |
| }, | |
| /** | |
| * Method: loadMapObject | |
| */ | |
| loadMapObject:function() { | |
| // create div and set to same size as map | |
| var veDiv = OpenLayers.Util.createDiv(this.name); | |
| var sz = this.map.getSize(); | |
| veDiv.style.width = sz.w + "px"; | |
| veDiv.style.height = sz.h + "px"; | |
| this.div.appendChild(veDiv); | |
| try { // crash prevention | |
| this.mapObject = new VEMap(this.name); | |
| } catch (e) { } | |
| if (this.mapObject != null) { | |
| try { // this is to catch a Mozilla bug without falling apart | |
| // The fourth argument is whether the map is 'fixed' -- not | |
| // draggable. See: | |
| // http://blogs.msdn.com/virtualearth/archive/2007/09/28/locking-a-virtual-earth-map.aspx | |
| // | |
| this.mapObject.LoadMap(null, null, this.type, true); | |
| this.mapObject.AttachEvent("onmousedown", OpenLayers.Function.True); | |
| } catch (e) { } | |
| this.mapObject.HideDashboard(); | |
| if(typeof this.mapObject.SetAnimationEnabled == "function") { | |
| this.mapObject.SetAnimationEnabled(this.animationEnabled); | |
| } | |
| } | |
| //can we do smooth panning? this is an unpublished method, so we need | |
| // to be careful | |
| if ( !this.mapObject || | |
| !this.mapObject.vemapcontrol || | |
| !this.mapObject.vemapcontrol.PanMap || | |
| (typeof this.mapObject.vemapcontrol.PanMap != "function")) { | |
| this.dragPanMapObject = null; | |
| } | |
| }, | |
| /** | |
| * Method: onMapResize | |
| */ | |
| onMapResize: function() { | |
| this.mapObject.Resize(this.map.size.w, this.map.size.h); | |
| }, | |
| /** | |
| * APIMethod: getWarningHTML | |
| * | |
| * Returns: | |
| * {String} String with information on why layer is broken, how to get | |
| * it working. | |
| */ | |
| getWarningHTML:function() { | |
| return OpenLayers.i18n( | |
| "getLayerWarning", {'layerType':'VE', 'layerLib':'VirtualEarth'} | |
| ); | |
| }, | |
| /************************************ | |
| * * | |
| * MapObject Interface Controls * | |
| * * | |
| ************************************/ | |
| // Get&Set Center, Zoom | |
| /** | |
| * APIMethod: setMapObjectCenter | |
| * Set the mapObject to the specified center and zoom | |
| * | |
| * Parameters: | |
| * center - {Object} MapObject LonLat format | |
| * zoom - {int} MapObject zoom format | |
| */ | |
| setMapObjectCenter: function(center, zoom) { | |
| this.mapObject.SetCenterAndZoom(center, zoom); | |
| }, | |
| /** | |
| * APIMethod: getMapObjectCenter | |
| * | |
| * Returns: | |
| * {Object} The mapObject's current center in Map Object format | |
| */ | |
| getMapObjectCenter: function() { | |
| return this.mapObject.GetCenter(); | |
| }, | |
| /** | |
| * APIMethod: dragPanMapObject | |
| * | |
| * Parameters: | |
| * dX - {Integer} | |
| * dY - {Integer} | |
| */ | |
| dragPanMapObject: function(dX, dY) { | |
| this.mapObject.vemapcontrol.PanMap(dX, -dY); | |
| }, | |
| /** | |
| * APIMethod: getMapObjectZoom | |
| * | |
| * Returns: | |
| * {Integer} The mapObject's current zoom, in Map Object format | |
| */ | |
| getMapObjectZoom: function() { | |
| return this.mapObject.GetZoomLevel(); | |
| }, | |
| // LonLat - Pixel Translation | |
| /** | |
| * APIMethod: getMapObjectLonLatFromMapObjectPixel | |
| * | |
| * Parameters: | |
| * moPixel - {Object} MapObject Pixel format | |
| * | |
| * Returns: | |
| * {Object} MapObject LonLat translated from MapObject Pixel | |
| */ | |
| getMapObjectLonLatFromMapObjectPixel: function(moPixel) { | |
| //the conditional here is to test if we are running the v6 of VE | |
| return (typeof VEPixel != 'undefined') | |
| ? this.mapObject.PixelToLatLong(moPixel) | |
| : this.mapObject.PixelToLatLong(moPixel.x, moPixel.y); | |
| }, | |
| /** | |
| * APIMethod: getMapObjectPixelFromMapObjectLonLat | |
| * | |
| * Parameters: | |
| * moLonLat - {Object} MapObject LonLat format | |
| * | |
| * Returns: | |
| * {Object} MapObject Pixel transtlated from MapObject LonLat | |
| */ | |
| getMapObjectPixelFromMapObjectLonLat: function(moLonLat) { | |
| return this.mapObject.LatLongToPixel(moLonLat); | |
| }, | |
| /************************************ | |
| * * | |
| * MapObject Primitives * | |
| * * | |
| ************************************/ | |
| // LonLat | |
| /** | |
| * APIMethod: getLongitudeFromMapObjectLonLat | |
| * | |
| * Parameters: | |
| * moLonLat - {Object} MapObject LonLat format | |
| * | |
| * Returns: | |
| * {Float} Longitude of the given MapObject LonLat | |
| */ | |
| getLongitudeFromMapObjectLonLat: function(moLonLat) { | |
| return this.sphericalMercator ? | |
| this.forwardMercator(moLonLat.Longitude, moLonLat.Latitude).lon : | |
| moLonLat.Longitude; | |
| }, | |
| /** | |
| * APIMethod: getLatitudeFromMapObjectLonLat | |
| * | |
| * Parameters: | |
| * moLonLat - {Object} MapObject LonLat format | |
| * | |
| * Returns: | |
| * {Float} Latitude of the given MapObject LonLat | |
| */ | |
| getLatitudeFromMapObjectLonLat: function(moLonLat) { | |
| return this.sphericalMercator ? | |
| this.forwardMercator(moLonLat.Longitude, moLonLat.Latitude).lat : | |
| moLonLat.Latitude; | |
| }, | |
| /** | |
| * APIMethod: getMapObjectLonLatFromLonLat | |
| * | |
| * Parameters: | |
| * lon - {Float} | |
| * lat - {Float} | |
| * | |
| * Returns: | |
| * {Object} MapObject LonLat built from lon and lat params | |
| */ | |
| getMapObjectLonLatFromLonLat: function(lon, lat) { | |
| var veLatLong; | |
| if(this.sphericalMercator) { | |
| var lonlat = this.inverseMercator(lon, lat); | |
| veLatLong = new VELatLong(lonlat.lat, lonlat.lon); | |
| } else { | |
| veLatLong = new VELatLong(lat, lon); | |
| } | |
| return veLatLong; | |
| }, | |
| // Pixel | |
| /** | |
| * APIMethod: getXFromMapObjectPixel | |
| * | |
| * Parameters: | |
| * moPixel - {Object} MapObject Pixel format | |
| * | |
| * Returns: | |
| * {Integer} X value of the MapObject Pixel | |
| */ | |
| getXFromMapObjectPixel: function(moPixel) { | |
| return moPixel.x; | |
| }, | |
| /** | |
| * APIMethod: getYFromMapObjectPixel | |
| * | |
| * Parameters: | |
| * moPixel - {Object} MapObject Pixel format | |
| * | |
| * Returns: | |
| * {Integer} Y value of the MapObject Pixel | |
| */ | |
| getYFromMapObjectPixel: function(moPixel) { | |
| return moPixel.y; | |
| }, | |
| /** | |
| * APIMethod: getMapObjectPixelFromXY | |
| * | |
| * Parameters: | |
| * x - {Integer} | |
| * y - {Integer} | |
| * | |
| * Returns: | |
| * {Object} MapObject Pixel from x and y parameters | |
| */ | |
| getMapObjectPixelFromXY: function(x, y) { | |
| //the conditional here is to test if we are running the v6 of VE | |
| return (typeof VEPixel != 'undefined') ? new VEPixel(x, y) | |
| : new Msn.VE.Pixel(x, y); | |
| }, | |
| CLASS_NAME: "OpenLayers.Layer.VirtualEarth" | |
| }); | |