1 | /**
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2 | * Namespace: Util.OSM
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3 | */
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4 | OpenLayers.Util.OSM = {};
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5 |
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6 | /**
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7 | * Constant: MISSING_TILE_URL
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8 | * {String} URL of image to display for missing tiles
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9 | */
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10 | OpenLayers.Util.OSM.MISSING_TILE_URL = "http://openstreetmap.org/openlayers/img/404.png";
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11 |
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12 | /**
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13 | * Property: originalOnImageLoadError
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14 | * {Function} Original onImageLoadError function.
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15 | */
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16 | OpenLayers.Util.OSM.originalOnImageLoadError = OpenLayers.Util.onImageLoadError;
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17 |
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18 | /**
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19 | * Function: onImageLoadError
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20 | */
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21 | OpenLayers.Util.onImageLoadError = function() {
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22 | if (this.src.match(/^http:\/\/[abc]\.[a-z]+\.openstreetmap\.org\//)) {
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23 | this.src = OpenLayers.Util.OSM.MISSING_TILE_URL;
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24 | } else if (this.src.match(/^http:\/\/[def]\.tah\.openstreetmap\.org\//)) {
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25 | // do nothing - this layer is transparent
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26 | } else {
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27 | OpenLayers.Util.OSM.originalOnImageLoadError;
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28 | }
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29 | };
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30 |
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31 | var wl_balancers = ['a','b','c','d','e','f'];
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32 | function get_balanced_urls(prefix, balancers, suffix) {
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33 | var urls = [];
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34 | for (i=0 ; i < balancers.length; i++) {
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35 | urls.push(prefix + balancers[i] + suffix);
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36 | };
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37 | return urls;
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38 | };
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39 |
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40 |
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41 | /**
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42 | * Class: OpenLayers.Layer.OSM.Mapnik
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43 | *
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44 | * Inherits from:
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45 | * - <OpenLayers.Layer.OSM>
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46 | */
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47 | OpenLayers.Layer.OSM.Mapnik = OpenLayers.Class(OpenLayers.Layer.OSM, {
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48 | /**
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49 | * Constructor: OpenLayers.Layer.OSM.Mapnik
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50 | *
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51 | * Parameters:
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52 | * name - {String}
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53 | * options - {Object} Hashtable of extra options to tag onto the layer
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54 | */
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55 | initialize: function(name, options) {
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56 | var url = get_balanced_urls('http://', wl_balancers, '.osmproxy.wirelessleiden.nl/heatmap/osm-proxy/${z}/${x},${y}.png');
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57 | options = OpenLayers.Util.extend({ numZoomLevels: 19 }, options);
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58 | var newArguments = [name, url, options];
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59 | OpenLayers.Layer.OSM.prototype.initialize.apply(this, newArguments);
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60 | },
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61 |
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62 | CLASS_NAME: "OpenLayers.Layer.OSM.Mapnik"
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63 | });
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64 |
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65 | /**
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66 | * Class: OpenLayers.Layer.OSM.Osmarender
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67 | *
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68 | * Inherits from:
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69 | * - <OpenLayers.Layer.OSM>
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70 | */
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71 | OpenLayers.Layer.OSM.Osmarender = OpenLayers.Class(OpenLayers.Layer.OSM, {
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72 | /**
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73 | * Constructor: OpenLayers.Layer.OSM.Osmarender
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74 | *
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75 | * Parameters:
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76 | * name - {String}
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77 | * options - {Object} Hashtable of extra options to tag onto the layer
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78 | */
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79 | initialize: function(name, options) {
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80 | var url = [
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81 | "http://a.tah.openstreetmap.org/Tiles/tile/${z}/${x}/${y}.png",
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82 | "http://b.tah.openstreetmap.org/Tiles/tile/${z}/${x}/${y}.png",
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83 | "http://c.tah.openstreetmap.org/Tiles/tile/${z}/${x}/${y}.png"
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84 | ];
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85 | options = OpenLayers.Util.extend({ numZoomLevels: 18 }, options);
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86 | var newArguments = [name, url, options];
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87 | OpenLayers.Layer.OSM.prototype.initialize.apply(this, newArguments);
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88 | },
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89 |
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90 | CLASS_NAME: "OpenLayers.Layer.OSM.Osmarender"
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91 | });
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92 |
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93 | /**
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94 | * Class: OpenLayers.Layer.OSM.CycleMap
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95 | *
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96 | * Inherits from:
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97 | * - <OpenLayers.Layer.OSM>
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98 | */
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99 | OpenLayers.Layer.OSM.CycleMap = OpenLayers.Class(OpenLayers.Layer.OSM, {
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100 | /**
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101 | * Constructor: OpenLayers.Layer.OSM.CycleMap
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102 | *
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103 | * Parameters:
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104 | * name - {String}
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105 | * options - {Object} Hashtable of extra options to tag onto the layer
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106 | */
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107 | initialize: function(name, options) {
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108 | var url = [
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109 | "http://a.andy.sandbox.cloudmade.com/tiles/cycle/${z}/${x}/${y}.png",
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110 | "http://b.andy.sandbox.cloudmade.com/tiles/cycle/${z}/${x}/${y}.png",
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111 | "http://c.andy.sandbox.cloudmade.com/tiles/cycle/${z}/${x}/${y}.png"
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112 | ];
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113 | options = OpenLayers.Util.extend({ numZoomLevels: 19 }, options);
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114 | var newArguments = [name, url, options];
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115 | OpenLayers.Layer.OSM.prototype.initialize.apply(this, newArguments);
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116 | },
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117 |
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118 | CLASS_NAME: "OpenLayers.Layer.OSM.CycleMap"
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119 | });
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120 |
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121 | /**
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122 | * Class: OpenLayers.Layer.OSM.Maplint
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123 | *
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124 | * Inherits from:
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125 | * - <OpenLayers.Layer.OSM>
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126 | */
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127 | OpenLayers.Layer.OSM.Maplint = OpenLayers.Class(OpenLayers.Layer.OSM, {
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128 | /**
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129 | * Constructor: OpenLayers.Layer.OSM.Maplint
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130 | *
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131 | * Parameters:
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132 | * name - {String}
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133 | * options - {Object} Hashtable of extra options to tag onto the layer
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134 | */
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135 | initialize: function(name, options) {
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136 | var url = [
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137 | "http://d.tah.openstreetmap.org/Tiles/maplint/${z}/${x}/${y}.png",
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138 | "http://e.tah.openstreetmap.org/Tiles/maplint/${z}/${x}/${y}.png",
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139 | "http://f.tah.openstreetmap.org/Tiles/maplint/${z}/${x}/${y}.png"
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140 | ];
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141 | options = OpenLayers.Util.extend({ numZoomLevels: 21, isBaseLayer: false, visibility: false }, options);
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142 | var newArguments = [name, url, options];
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143 | OpenLayers.Layer.OSM.prototype.initialize.apply(this, newArguments);
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144 | },
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145 |
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146 | CLASS_NAME: "OpenLayers.Layer.OSM.Maplint"
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147 | });
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148 |
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149 | /**
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150 | * Gheat layer
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151 | */
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152 | OpenLayers.Layer.OSM.Overlay1 = OpenLayers.Class(OpenLayers.Layer.OSM, {
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153 | initialize: function(name, options) {
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154 | var url = [
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155 | "/gheat/classic/${z}/${x},${y}.png"
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156 | ];
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157 | options = OpenLayers.Util.extend({ numZoomLevels: 21 }, options);
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158 | var newArguments = [name, url, options];
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159 | OpenLayers.Layer.OSM.prototype.initialize.apply(this, newArguments);
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160 | },
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161 | colour: "0,0,0",
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162 | CLASS_NAME: "OpenLayers.Layer.Overlay"
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163 | });
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164 |
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165 | /**
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166 | * All accespoints
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167 | */
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168 | OpenLayers.Layer.OSM.Overlay2 = OpenLayers.Class(OpenLayers.Layer.OSM, {
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169 | initialize: function(name, options) {
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170 | var url = get_balanced_urls('http://', wl_balancers, '.maps.wirelessleiden.nl/wlheatmap/tile/${z}/${x},${y}.png?colour=90,90,90');
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171 | options = OpenLayers.Util.extend({ numZoomLevels: 21 }, options);
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172 | var newArguments = [name, url, options];
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173 | OpenLayers.Layer.OSM.prototype.initialize.apply(this, newArguments);
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174 | },
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175 | colour: "90,90,90",
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176 | CLASS_NAME: "OpenLayers.Layer.Overlay"
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177 | });
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178 |
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179 | /**
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180 | * Wireless Leiden nodes
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181 | */
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182 | OpenLayers.Layer.OSM.Overlay3 = OpenLayers.Class(OpenLayers.Layer.OSM, {
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183 | initialize: function(name, options) {
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184 | var url = get_balanced_urls('http://', wl_balancers, '.maps.wirelessleiden.nl/wlheatmap/tile/${z}/${x},${y}.png?colour=255,0,0&accespoint__ssid__icontains=WirelessLeiden');
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185 | options = OpenLayers.Util.extend({ numZoomLevels: 21 }, options);
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186 | var newArguments = [name, url, options];
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187 | OpenLayers.Layer.OSM.prototype.initialize.apply(this, newArguments);
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188 | },
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189 | colour: "255,0,0",
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190 | CLASS_NAME: "OpenLayers.Layer.Overlay"
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191 | });
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192 |
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193 | /**
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194 | * Signal strength
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195 | */
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196 | OpenLayers.Layer.OSM.Overlay4 = OpenLayers.Class(OpenLayers.Layer.OSM, {
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197 | initialize: function(name, options) {
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198 | var url = get_balanced_urls('http://', wl_balancers, '.maps.wirelessleiden.nl/wlheatmap/tile/${z}/${x},${y}.png?colour=50,150,50&signaal__gte=0&signaal__lte=100');
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199 | options = OpenLayers.Util.extend({ numZoomLevels: 21 }, options);
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200 | var newArguments = [name, url, options];
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201 | OpenLayers.Layer.OSM.prototype.initialize.apply(this, newArguments);
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202 | },
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203 | colour: "50,150,50",
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204 | CLASS_NAME: "OpenLayers.Layer.Overlay"
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205 | });
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