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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