--- a/labs/openlayers/lib/OpenLayers/Layer/MultiMap.js +++ b/labs/openlayers/lib/OpenLayers/Layer/MultiMap.js @@ -1,1 +1,285 @@ - +/* 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/EventPane.js + * @requires OpenLayers/Layer/FixedZoomLevels.js + */ + +/** + * Class: OpenLayers.Layer.MultiMap + * Note that MultiMap does not fully support the sphericalMercator + * option. See Ticket #953 for more details. + * + * Inherits from: + * - + * - + */ +OpenLayers.Layer.MultiMap = OpenLayers.Class( + OpenLayers.Layer.EventPane, OpenLayers.Layer.FixedZoomLevels, { + + /** + * Constant: MIN_ZOOM_LEVEL + * {Integer} 1 + */ + MIN_ZOOM_LEVEL: 1, + + /** + * Constant: MAX_ZOOM_LEVEL + * {Integer} 17 + */ + MAX_ZOOM_LEVEL: 17, + + /** + * Constant: RESOLUTIONS + * {Array(Float)} Hardcode these resolutions so that they are more closely + * tied with the standard wms projection + */ + RESOLUTIONS: [ + 9, + 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 + ], + + /** + * APIProperty: type + * {?} + */ + type: null, + + /** + * Constructor: OpenLayers.Layer.MultiMap + * + * 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(); + this.RESOLUTIONS.unshift(10); + } + }, + + /** + * Method: loadMapObject + */ + loadMapObject:function() { + try { //crash proofing + this.mapObject = new MultimapViewer(this.div); + } catch (e) { } + }, + + /** + * APIMethod: getWarningHTML + * + * Returns: + * {String} String with information on why layer is broken, how to get + * it working. + */ + getWarningHTML:function() { + return OpenLayers.i18n( + "getLayerWarning", {'layerType':"MM", 'layerLib':"MultiMap"} + ); + }, + + + + /************************************ + * * + * 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.goToPosition(center, zoom); + }, + + /** + * APIMethod: getMapObjectCenter + * + * Returns: + * {Object} The mapObject's current center in Map Object format + */ + getMapObjectCenter: function() { + return this.mapObject.getCurrentPosition(); + }, + + /** + * APIMethod: getMapObjectZoom + * + * Returns: + * {Integer} The mapObject's current zoom, in Map Object format + */ + getMapObjectZoom: function() { + return this.mapObject.getZoomFactor(); + }, + + + // LonLat - Pixel Translation + + /** + * APIMethod: getMapObjectLonLatFromMapObjectPixel + * + * Parameters: + * moPixel - {Object} MapObject Pixel format + * + * Returns: + * {Object} MapObject LonLat translated from MapObject Pixel + */ + getMapObjectLonLatFromMapObjectPixel: function(moPixel) { + moPixel.x = moPixel.x - (this.map.getSize().w/2); + moPixel.y = moPixel.y - (this.map.getSize().h/2); + return this.mapObject.getMapPositionAt(moPixel); + }, + + /** + * APIMethod: getMapObjectPixelFromMapObjectLonLat + * + * Parameters: + * moLonLat - {Object} MapObject LonLat format + * + * Returns: + * {Object} MapObject Pixel transtlated from MapObject LonLat + */ + getMapObjectPixelFromMapObjectLonLat: function(moLonLat) { + return this.mapObject.geoPosToContainerPixels(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.lon, moLonLat.lat).lon : + moLonLat.lon; + }, + + /** + * 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.lon, moLonLat.lat).lat : + moLonLat.lat; + }, + + /** + * APIMethod: getMapObjectLonLatFromLonLat + * + * Parameters: + * lon - {Float} + * lat - {Float} + * + * Returns: + * {Object} MapObject LonLat built from lon and lat params + */ + getMapObjectLonLatFromLonLat: function(lon, lat) { + var mmLatLon; + if(this.sphericalMercator) { + var lonlat = this.inverseMercator(lon, lat); + mmLatLon = new MMLatLon(lonlat.lat, lonlat.lon); + } else { + mmLatLon = new MMLatLon(lat, lon); + } + return mmLatLon; + }, + + // 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) { + return new MMPoint(x, y); + }, + + CLASS_NAME: "OpenLayers.Layer.MultiMap" +}); +