[76] | 1 | /* Copyright (c) 2006-2010 by OpenLayers Contributors (see authors.txt for |
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| 2 | * full list of contributors). Published under the Clear BSD license. |
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| 3 | * See http://svn.openlayers.org/trunk/openlayers/license.txt for the |
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| 4 | * full text of the license. */ |
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| 5 | |
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| 6 | /** |
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| 7 | * @requires OpenLayers/Layer/EventPane.js |
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| 8 | * @requires OpenLayers/Layer/FixedZoomLevels.js |
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| 9 | */ |
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| 10 | |
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| 11 | /** |
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| 12 | * Class: OpenLayers.Layer.MultiMap |
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| 13 | * Note that MultiMap does not fully support the sphericalMercator |
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| 14 | * option. See Ticket #953 for more details. |
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| 15 | * |
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| 16 | * Inherits from: |
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| 17 | * - <OpenLayers.Layer.EventPane> |
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| 18 | * - <OpenLayers.Layer.FixedZoomLevels> |
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| 19 | */ |
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| 20 | OpenLayers.Layer.MultiMap = OpenLayers.Class( |
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| 21 | OpenLayers.Layer.EventPane, OpenLayers.Layer.FixedZoomLevels, { |
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| 22 | |
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| 23 | /** |
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| 24 | * Constant: MIN_ZOOM_LEVEL |
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| 25 | * {Integer} 1 |
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| 26 | */ |
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| 27 | MIN_ZOOM_LEVEL: 1, |
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| 28 | |
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| 29 | /** |
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| 30 | * Constant: MAX_ZOOM_LEVEL |
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| 31 | * {Integer} 17 |
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| 32 | */ |
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| 33 | MAX_ZOOM_LEVEL: 17, |
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| 34 | |
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| 35 | /** |
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| 36 | * Constant: RESOLUTIONS |
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| 37 | * {Array(Float)} Hardcode these resolutions so that they are more closely |
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| 38 | * tied with the standard wms projection |
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| 39 | */ |
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| 40 | RESOLUTIONS: [ |
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| 41 | 9, |
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| 42 | 1.40625, |
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| 43 | 0.703125, |
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| 44 | 0.3515625, |
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| 45 | 0.17578125, |
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| 46 | 0.087890625, |
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| 47 | 0.0439453125, |
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| 48 | 0.02197265625, |
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| 49 | 0.010986328125, |
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| 50 | 0.0054931640625, |
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| 51 | 0.00274658203125, |
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| 52 | 0.001373291015625, |
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| 53 | 0.0006866455078125, |
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| 54 | 0.00034332275390625, |
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| 55 | 0.000171661376953125, |
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| 56 | 0.0000858306884765625, |
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| 57 | 0.00004291534423828125 |
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| 58 | ], |
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| 59 | |
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| 60 | /** |
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| 61 | * APIProperty: type |
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| 62 | * {?} |
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| 63 | */ |
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| 64 | type: null, |
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| 65 | |
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| 66 | /** |
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| 67 | * Constructor: OpenLayers.Layer.MultiMap |
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| 68 | * |
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| 69 | * Parameters: |
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| 70 | * name - {String} |
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| 71 | * options - {Object} |
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| 72 | */ |
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| 73 | initialize: function(name, options) { |
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| 74 | OpenLayers.Layer.EventPane.prototype.initialize.apply(this, arguments); |
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| 75 | OpenLayers.Layer.FixedZoomLevels.prototype.initialize.apply(this, |
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| 76 | arguments); |
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| 77 | if (this.sphericalMercator) { |
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| 78 | OpenLayers.Util.extend(this, OpenLayers.Layer.SphericalMercator); |
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| 79 | this.initMercatorParameters(); |
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| 80 | this.RESOLUTIONS.unshift(10); |
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| 81 | } |
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| 82 | }, |
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| 83 | |
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| 84 | /** |
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| 85 | * Method: loadMapObject |
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| 86 | */ |
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| 87 | loadMapObject:function() { |
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| 88 | try { //crash proofing |
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| 89 | this.mapObject = new MultimapViewer(this.div); |
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| 90 | } catch (e) { } |
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| 91 | }, |
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| 92 | |
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| 93 | /** |
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| 94 | * APIMethod: getWarningHTML |
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| 95 | * |
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| 96 | * Returns: |
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| 97 | * {String} String with information on why layer is broken, how to get |
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| 98 | * it working. |
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| 99 | */ |
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| 100 | getWarningHTML:function() { |
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| 101 | return OpenLayers.i18n( |
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| 102 | "getLayerWarning", {'layerType':"MM", 'layerLib':"MultiMap"} |
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| 103 | ); |
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| 104 | }, |
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| 105 | |
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| 106 | |
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| 107 | |
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| 108 | /************************************ |
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| 109 | * * |
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| 110 | * MapObject Interface Controls * |
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| 111 | * * |
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| 112 | ************************************/ |
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| 113 | |
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| 114 | |
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| 115 | // Get&Set Center, Zoom |
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| 116 | |
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| 117 | /** |
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| 118 | * APIMethod: setMapObjectCenter |
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| 119 | * Set the mapObject to the specified center and zoom |
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| 120 | * |
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| 121 | * Parameters: |
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| 122 | * center - {Object} MapObject LonLat format |
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| 123 | * zoom - {int} MapObject zoom format |
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| 124 | */ |
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| 125 | setMapObjectCenter: function(center, zoom) { |
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| 126 | this.mapObject.goToPosition(center, zoom); |
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| 127 | }, |
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| 128 | |
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| 129 | /** |
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| 130 | * APIMethod: getMapObjectCenter |
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| 131 | * |
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| 132 | * Returns: |
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| 133 | * {Object} The mapObject's current center in Map Object format |
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| 134 | */ |
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| 135 | getMapObjectCenter: function() { |
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| 136 | return this.mapObject.getCurrentPosition(); |
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| 137 | }, |
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| 138 | |
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| 139 | /** |
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| 140 | * APIMethod: getMapObjectZoom |
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| 141 | * |
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| 142 | * Returns: |
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| 143 | * {Integer} The mapObject's current zoom, in Map Object format |
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| 144 | */ |
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| 145 | getMapObjectZoom: function() { |
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| 146 | return this.mapObject.getZoomFactor(); |
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| 147 | }, |
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| 148 | |
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| 149 | |
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| 150 | // LonLat - Pixel Translation |
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| 151 | |
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| 152 | /** |
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| 153 | * APIMethod: getMapObjectLonLatFromMapObjectPixel |
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| 154 | * |
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| 155 | * Parameters: |
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| 156 | * moPixel - {Object} MapObject Pixel format |
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| 157 | * |
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| 158 | * Returns: |
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| 159 | * {Object} MapObject LonLat translated from MapObject Pixel |
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| 160 | */ |
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| 161 | getMapObjectLonLatFromMapObjectPixel: function(moPixel) { |
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| 162 | moPixel.x = moPixel.x - (this.map.getSize().w/2); |
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| 163 | moPixel.y = moPixel.y - (this.map.getSize().h/2); |
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| 164 | return this.mapObject.getMapPositionAt(moPixel); |
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| 165 | }, |
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| 166 | |
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| 167 | /** |
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| 168 | * APIMethod: getMapObjectPixelFromMapObjectLonLat |
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| 169 | * |
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| 170 | * Parameters: |
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| 171 | * moLonLat - {Object} MapObject LonLat format |
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| 172 | * |
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| 173 | * Returns: |
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| 174 | * {Object} MapObject Pixel transtlated from MapObject LonLat |
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| 175 | */ |
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| 176 | getMapObjectPixelFromMapObjectLonLat: function(moLonLat) { |
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| 177 | return this.mapObject.geoPosToContainerPixels(moLonLat); |
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| 178 | }, |
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| 179 | |
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| 180 | |
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| 181 | /************************************ |
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| 182 | * * |
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| 183 | * MapObject Primitives * |
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| 184 | * * |
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| 185 | ************************************/ |
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| 186 | |
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| 187 | |
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| 188 | // LonLat |
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| 189 | |
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| 190 | /** |
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| 191 | * APIMethod: getLongitudeFromMapObjectLonLat |
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| 192 | * |
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| 193 | * Parameters: |
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| 194 | * moLonLat - {Object} MapObject LonLat format |
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| 195 | * |
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| 196 | * Returns: |
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| 197 | * {Float} Longitude of the given MapObject LonLat |
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| 198 | */ |
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| 199 | getLongitudeFromMapObjectLonLat: function(moLonLat) { |
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| 200 | return this.sphericalMercator ? |
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| 201 | this.forwardMercator(moLonLat.lon, moLonLat.lat).lon : |
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| 202 | moLonLat.lon; |
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| 203 | }, |
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| 204 | |
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| 205 | /** |
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| 206 | * APIMethod: getLatitudeFromMapObjectLonLat |
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| 207 | * |
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| 208 | * Parameters: |
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| 209 | * moLonLat - {Object} MapObject LonLat format |
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| 210 | * |
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| 211 | * Returns: |
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| 212 | * {Float} Latitude of the given MapObject LonLat |
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| 213 | */ |
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| 214 | getLatitudeFromMapObjectLonLat: function(moLonLat) { |
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| 215 | return this.sphericalMercator ? |
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| 216 | this.forwardMercator(moLonLat.lon, moLonLat.lat).lat : |
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| 217 | moLonLat.lat; |
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| 218 | }, |
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| 219 | |
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| 220 | /** |
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| 221 | * APIMethod: getMapObjectLonLatFromLonLat |
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| 222 | * |
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| 223 | * Parameters: |
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| 224 | * lon - {Float} |
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| 225 | * lat - {Float} |
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| 226 | * |
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| 227 | * Returns: |
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| 228 | * {Object} MapObject LonLat built from lon and lat params |
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| 229 | */ |
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| 230 | getMapObjectLonLatFromLonLat: function(lon, lat) { |
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| 231 | var mmLatLon; |
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| 232 | if(this.sphericalMercator) { |
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| 233 | var lonlat = this.inverseMercator(lon, lat); |
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| 234 | mmLatLon = new MMLatLon(lonlat.lat, lonlat.lon); |
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| 235 | } else { |
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| 236 | mmLatLon = new MMLatLon(lat, lon); |
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| 237 | } |
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| 238 | return mmLatLon; |
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| 239 | }, |
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| 240 | |
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| 241 | // Pixel |
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| 242 | |
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| 243 | /** |
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| 244 | * APIMethod: getXFromMapObjectPixel |
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| 245 | * |
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| 246 | * Parameters: |
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| 247 | * moPixel - {Object} MapObject Pixel format |
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| 248 | * |
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| 249 | * Returns: |
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| 250 | * {Integer} X value of the MapObject Pixel |
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| 251 | */ |
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| 252 | getXFromMapObjectPixel: function(moPixel) { |
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| 253 | return moPixel.x; |
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| 254 | }, |
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| 255 | |
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| 256 | /** |
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| 257 | * APIMethod: getYFromMapObjectPixel |
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| 258 | * |
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| 259 | * Parameters: |
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| 260 | * moPixel - {Object} MapObject Pixel format |
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| 261 | * |
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| 262 | * Returns: |
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| 263 | * {Integer} Y value of the MapObject Pixel |
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| 264 | */ |
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| 265 | getYFromMapObjectPixel: function(moPixel) { |
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| 266 | return moPixel.y; |
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| 267 | }, |
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| 268 | |
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| 269 | /** |
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| 270 | * APIMethod: getMapObjectPixelFromXY |
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| 271 | * |
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| 272 | * Parameters: |
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| 273 | * x - {Integer} |
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| 274 | * y - {Integer} |
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| 275 | * |
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| 276 | * Returns: |
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| 277 | * {Object} MapObject Pixel from x and y parameters |
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| 278 | */ |
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| 279 | getMapObjectPixelFromXY: function(x, y) { |
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| 280 | return new MMPoint(x, y); |
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| 281 | }, |
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| 282 | |
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| 283 | CLASS_NAME: "OpenLayers.Layer.MultiMap" |
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| 284 | }); |
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