1
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function CdmOpenlayersMap(mapElement, mapserverBaseUrl, options){
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2
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3
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var legendImgSrc = null;
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4
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5
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var map = null;
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6
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var dataBounds = null;
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8
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9
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var baseLayers = [];
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var defaultBaseLayer;
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11
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var defaultControls = [
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new OpenLayers.Control.PanZoom(),
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new OpenLayers.Control.Navigation({zoomWheelEnabled: false, handleRightClicks:true, zoomBoxKeyMask: OpenLayers.Handler.MOD_CTRL})
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];
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16
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/*
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* EPSG:4326 and EPSG:900913 extends
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18
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*/
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var mapExtend_4326 = new OpenLayers.Bounds(-180, -90, 180, 90);
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var mapExtend_900913 = new OpenLayers.Bounds(-20037508.34, -20037508.34, 20037508.34, 20037508.34);
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var mapOptions={
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EPSG900913: {
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controls: defaultControls,
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maxExtent: mapExtend_900913,
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//maxResolution: (mapExtend_900913.getWidth() / options.displayWidth),
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maxResolution: (mapExtend_900913.getHeight() / (options.displayWidth / 2)),
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//maxResolution:156543.0339 * 20,
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units:'m',
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restrictedExtent: mapExtend_900913,
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projection: new OpenLayers.Projection("EPSG:900913")
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},
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EPSG4326: {
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controls: defaultControls,
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maxExtent: mapExtend_4326,
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maxResolution: (mapExtend_4326.getWidth() / options.displayWidth),
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units:'degrees',
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restrictedExtent: mapExtend_4326,
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projection: new OpenLayers.Projection("EPSG:4326")
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}
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};
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var dataProj = new OpenLayers.Projection("EPSG:4326");
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var dataLayerOptions = {
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maxExtent: mapExtend_900913,
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isBaseLayer: false,
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49
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displayInLayerSwitcher: true
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};
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var layerByNameMap = {
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tdwg1: 'topp:tdwg_level_1',
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tdwg2: 'topp:tdwg_level_2',
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tdwg3: 'topp:tdwg_level_3',
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tdwg4: 'topp:tdwg_level_4'
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};
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58
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59
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/**
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60
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*
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61
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*/
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62
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this.init = function(){
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63
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createLayers(options.baseLayerNames, options.defaultBaseLayerName);
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//HACK !!!!!!!!!!!!!!!!!!!!!!!!!!!!
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if(defaultBaseLayer.projection == mapOptions.EPSG900913.projection){
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options.minZoom = 1;
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69
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}
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70
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71
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initOpenLayers();
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72
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73
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74
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// -- Distribution Layer --
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var mapServiceRequest;
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var distributionQuery = mapElement.attr('distributionQuery');
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78
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if(distributionQuery !== undefined){
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if(typeof legendPosition == 'number'){
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distributionQuery = mergeQueryStrings(distributionQuery, 'legend=1&mlp=' + options.legendPosition);
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}
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83
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distributionQuery = mergeQueryStrings(distributionQuery, 'callback=?');
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var legendFormatQuery = mapElement.attr('legendFormatQuery');
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if(legendFormatQuery !== undefined){
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legendImgSrc = mergeQueryStrings('/GetLegendGraphic?SERVICE=WMS&VERSION=1.1.1', legendFormatQuery);
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}
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89
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mapServiceRequest = mapserverBaseUrl + '/areas.php?' + distributionQuery;
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91
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$.ajax({
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url: mapServiceRequest,
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dataType: "jsonp",
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success: function(data){
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addDataLayer(data);
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}
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});
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}
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100
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101
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// -- Occurrence Layer --
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var occurrenceQuery = mapElement.attr('occurrenceQuery');
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if(occurrenceQuery !== undefined){
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// if(typeof legendPosition == 'number'){
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// occurrenceQuery = mergeQueryStrings(distributionQuery, 'legend=1&mlp=' + options.legendPosition);
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// }
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107
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occurrenceQuery = mergeQueryStrings(occurrenceQuery, 'callback=?');
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// var legendFormatQuery = mapElement.attr('legendFormatQuery');
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110
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// if(legendFormatQuery !== undefined){
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// legendImgSrc = mergeQueryStrings('/GetLegendGraphic?SERVICE=WMS&VERSION=1.1.1', legendFormatQuery);
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// }
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113
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mapServiceRequest = mapserverBaseUrl + '/points.php?' + occurrenceQuery;
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115
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116
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$.ajax({
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117
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url: mapServiceRequest,
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118
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dataType: "jsonp",
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119
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success: function(data){
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120
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addDataLayer(data);
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121
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}
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122
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});
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123
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}
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124
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|
125
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|
126
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};
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127
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|
128
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/**
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129
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* Initialize the Openlayers viewer with the base layer
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130
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*/
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131
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var initOpenLayers = function(){
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132
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133
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// instatiate the openlayers viewer
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134
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if(defaultBaseLayer.projection == mapOptions.EPSG900913.projection){
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135
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map = new OpenLayers.Map('openlayers_map', mapOptions.EPSG900913);
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136
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} else {
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137
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map = new OpenLayers.Map('openlayers_map', mapOptions.EPSG4326);
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138
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}
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139
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140
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//add the base layers
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141
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map.addLayers(baseLayers);
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142
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map.setBaseLayer(defaultBaseLayer);
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143
|
|
144
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if(options.showLayerSwitcher === true){
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145
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map.addControl(new OpenLayers.Control.LayerSwitcher({'ascending':false}));
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146
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}
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147
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148
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// zoom to the required area
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149
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var boundsStr = (typeof options.boundingBox == 'string' && options.boundingBox.length > 6 ? options.boundingBox : '-180, -90, 180, 90');
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150
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var zoomToBounds = OpenLayers.Bounds.fromString( boundsStr );
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151
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map.zoomToExtent(zoomToBounds.transform(dataProj, map.getProjectionObject()), false);
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152
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if(map.getZoom() > options.maxZoom){
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153
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map.zoomTo(options.maxZoom);
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154
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} else if(map.getZoom() < options.minZoom){
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155
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map.zoomTo(options.minZoom);
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156
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}
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157
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|
158
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// adjust height of openlayers container div
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159
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$('#openlayers').css('height', $('#openlayers #openlayers_map').height());
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160
|
|
161
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};
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162
|
|
163
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/**
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164
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* add a distribution layer
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165
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*/
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166
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var addDataLayer = function(mapResponseObj){
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167
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|
168
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var layer;
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169
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// add additional layers, get them from
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170
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// the mapResponseObj
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171
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if(mapResponseObj !== undefined){
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172
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if(mapResponseObj.points_sld !== undefined){
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173
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// it is a response from the points.php
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174
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//TODO points_sld should be renamed to sld in response + fill path to sld should be given
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175
|
|
176
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layer = new OpenLayers.Layer.WMS.Untiled(
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177
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'points',
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178
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"http://193.190.116.6:8080/geoserver/wms/wms",
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179
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{layers: 'topp:rest_points' ,transparent:"true", format:"image/png"},
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180
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dataLayerOptions );
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181
|
|
182
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var sld = mapResponseObj.points_sld;
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183
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if(sld.indexOf("http://") !== 0){
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184
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sld = "http://edit.br.fgov.be/synthesys/www/v1/sld/" + sld;
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185
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}
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186
|
|
187
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layer.params.SLD = sld;
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188
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map.addLayers([layer]);
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189
|
|
190
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} else {
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191
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// it is a response from the areas.php
|
192
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for ( var i in mapResponseObj.layers) {
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193
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var layerData = mapResponseObj.layers[i];
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194
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|
195
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layer = new OpenLayers.Layer.WMS.Untiled(
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196
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layerData.tdwg,
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197
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mapResponseObj.geoserver + "/wms",
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198
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{layers: layerByNameMap[layerData.tdwg] ,transparent:"true", format:"image/png"},
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199
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dataLayerOptions );
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200
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layer.params.SLD = layerData.sld;
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201
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layer.setOpacity(options.distributionOpacity);
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202
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map.addLayers([layer]);
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203
|
|
204
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}
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205
|
|
206
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}
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207
|
|
208
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// zoom to the required area
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209
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if(mapResponseObj.bbox !== undefined){
|
210
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var newBounds = OpenLayers.Bounds.fromString( mapResponseObj.bbox );
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211
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if(dataBounds !== null){
|
212
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dataBounds.extend(newBounds);
|
213
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} else if(newBounds !== undefined){
|
214
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dataBounds = newBounds;
|
215
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}
|
216
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map.zoomToExtent(dataBounds.transform(dataProj, map.getProjectionObject()), false);
|
217
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if(map.getZoom() > options.maxZoom){
|
218
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map.zoomTo(options.maxZoom);
|
219
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} else if(map.getZoom() < options.minZoom){
|
220
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map.zoomTo(options.minZoom);
|
221
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}
|
222
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}
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223
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|
224
|
|
225
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if(options.legendPosition !== undefined && mapResponseObj.legend !== undefined){
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226
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var legendSrcUrl = mapResponseObj.geoserver + legendImgSrc + mapResponseObj.legend;
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227
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addLegendAsElement(legendSrcUrl);
|
228
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//addLegendAsLayer(legendSrcUrl, map);
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229
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}
|
230
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}
|
231
|
|
232
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};
|
233
|
|
234
|
/**
|
235
|
*
|
236
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*/
|
237
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var addLegendAsElement= function(legendSrcUrl){
|
238
|
|
239
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mapElement.after('<div class="openlayers_legend"><img src="' + legendSrcUrl + '"></div>');
|
240
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mapElement.next('.openlayers_legend').css('opacity', options.legendOpacity).find('img').load(function () {
|
241
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$(this).parent()
|
242
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.css('position', 'relative')
|
243
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.css('z-index', '1002')
|
244
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.css('top', -mapElement.height())
|
245
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.css('left', mapElement.width()- $(this).width())
|
246
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.width($(this).width());
|
247
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});
|
248
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};
|
249
|
|
250
|
|
251
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var addLegendAsLayer= function(legendSrcUrl, map){
|
252
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var w, h;
|
253
|
|
254
|
// 1. download imge to find height and width
|
255
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mapElement.after('<div class="openlayers_legend"><img src="' + legendSrcUrl + '"></div>');
|
256
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mapElement.next('.openlayers_legend').css('display', 'none').css('opacity', options.legendOpacity).find('img').load(function () {
|
257
|
|
258
|
w = mapElement.next('.openlayers_legend').find('img').width();
|
259
|
h = mapElement.next('.openlayers_legend').find('img').height();
|
260
|
mapElement.next('.openlayers_legend').remove();
|
261
|
|
262
|
// createLegendLayer();
|
263
|
// // 2. create the Legend Layer
|
264
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//TODO createLegendLayer as inner fiinction seems like an error
|
265
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// var createLegendLayer = function(){
|
266
|
//
|
267
|
//
|
268
|
// var legendLayerOptions={
|
269
|
// maxResolution: '.$maxRes.',
|
270
|
// maxExtent: new OpenLayers.Bounds(0, 0, w, h)
|
271
|
// };
|
272
|
//
|
273
|
// var legendLayer = new OpenLayers.Layer.Image(
|
274
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// 'Legend',
|
275
|
// legendSrcUrl,
|
276
|
// new OpenLayers.Bounds(0, 0, w, h),
|
277
|
// new OpenLayers.Size(w, h),
|
278
|
// imageLayerOptions);
|
279
|
// };
|
280
|
});
|
281
|
|
282
|
|
283
|
};
|
284
|
|
285
|
/**
|
286
|
* merge 2 Url query strings
|
287
|
*/
|
288
|
var mergeQueryStrings = function(queryStr1, queryStr2){
|
289
|
if(queryStr1.charAt(queryStr1.length - 1) != '&'){
|
290
|
queryStr1 += '&';
|
291
|
}
|
292
|
if(queryStr2.charAt(0) == '&'){
|
293
|
return queryStr1 + queryStr2.substr(1);
|
294
|
} else {
|
295
|
return queryStr1 + queryStr2;
|
296
|
}
|
297
|
};
|
298
|
|
299
|
/**
|
300
|
*
|
301
|
*/
|
302
|
var createLayers = function( baseLayerNames, defaultBaseLayerName){
|
303
|
//var baseLayers = new Array();
|
304
|
for(var i = 0; i < baseLayerNames.length; i++) {
|
305
|
//var layerName in baseLayerNames ){
|
306
|
baseLayers[i] = getLayersByName(baseLayerNames[i]);
|
307
|
// set the default base layer
|
308
|
if(baseLayerNames[i] == defaultBaseLayerName){
|
309
|
defaultBaseLayer = baseLayers[i];
|
310
|
}
|
311
|
}
|
312
|
|
313
|
//return baseLayers;
|
314
|
};
|
315
|
|
316
|
|
317
|
/**
|
318
|
*
|
319
|
*/
|
320
|
var getLayersByName = function(layerName){
|
321
|
|
322
|
var baseLayer;
|
323
|
|
324
|
switch(layerName){
|
325
|
|
326
|
case 'metacarta_vmap0':
|
327
|
/**
|
328
|
* NOTE: labs.metacarta.com is currently unavailable
|
329
|
*
|
330
|
* Available Projections:
|
331
|
* EPSG:900913
|
332
|
* EPSG:4326
|
333
|
*/
|
334
|
baseLayer = new OpenLayers.Layer.WMS(
|
335
|
"Metacarta Vmap0",
|
336
|
"http://labs.metacarta.com/wms/vmap0",
|
337
|
{layers: 'basic', format:"png"},
|
338
|
{
|
339
|
maxExtent: mapExtend_4326,
|
340
|
isBaseLayer: true,
|
341
|
displayInLayerSwitcher: true
|
342
|
}
|
343
|
);
|
344
|
break;
|
345
|
|
346
|
case 'osgeo_vmap0':
|
347
|
/**
|
348
|
* Available Projections:
|
349
|
* EPSG:4326
|
350
|
*/
|
351
|
baseLayer = new OpenLayers.Layer.WMS(
|
352
|
"OpenLayers World",
|
353
|
"http://vmap0.tiles.osgeo.org/wms/vmap0",
|
354
|
{layers: 'basic', format:"png"},
|
355
|
{
|
356
|
maxExtent: mapExtend_4326,
|
357
|
isBaseLayer: true,
|
358
|
displayInLayerSwitcher: true
|
359
|
}
|
360
|
);
|
361
|
break;
|
362
|
|
363
|
case 'edit-etopo1':
|
364
|
baseLayer = new OpenLayers.Layer.WMS(
|
365
|
"ETOPO1 Global Relief Model",
|
366
|
"http://edit.br.fgov.be:8080/geoserver/wms",
|
367
|
{layers: 'topp:color_etopo1_ice_full', format:"image/png"},
|
368
|
{
|
369
|
maxExtent: mapExtend_900913,
|
370
|
isBaseLayer: true,
|
371
|
displayInLayerSwitcher: true
|
372
|
}
|
373
|
);
|
374
|
break;
|
375
|
|
376
|
case 'edit-vmap0_world_basic':
|
377
|
baseLayer = new OpenLayers.Layer.WMS(
|
378
|
"EDIT Vmap0",
|
379
|
"http://edit.br.fgov.be:8080/geoserver/wms",
|
380
|
{layers: 'vmap0_world_basic', format:"image/png"},
|
381
|
{
|
382
|
maxExtent: mapExtend_900913,
|
383
|
isBaseLayer: true,
|
384
|
displayInLayerSwitcher: true
|
385
|
}
|
386
|
);
|
387
|
break;
|
388
|
|
389
|
// create Google Mercator layers
|
390
|
case 'gmap':
|
391
|
baseLayer = new OpenLayers.Layer.Google(
|
392
|
"Google Streets",
|
393
|
{'sphericalMercator': true}
|
394
|
);
|
395
|
break;
|
396
|
|
397
|
|
398
|
case 'gsat':
|
399
|
baseLayer = new OpenLayers.Layer.Google(
|
400
|
"Google Satellite",
|
401
|
{type: G_SATELLITE_MAP, 'sphericalMercator': true, numZoomLevels: 22}
|
402
|
);
|
403
|
break;
|
404
|
|
405
|
case 'ghyb':
|
406
|
baseLayer = new OpenLayers.Layer.Google(
|
407
|
"Google Hybrid",
|
408
|
{type: G_HYBRID_MAP, 'sphericalMercator': true}
|
409
|
);
|
410
|
break;
|
411
|
|
412
|
case 'veroad':
|
413
|
baseLayer = new OpenLayers.Layer.VirtualEarth(
|
414
|
"Virtual Earth Roads",
|
415
|
{'type': VEMapStyle.Road, 'sphericalMercator': true}
|
416
|
);
|
417
|
break;
|
418
|
|
419
|
case 'veaer':
|
420
|
baseLayer = new OpenLayers.Layer.VirtualEarth(
|
421
|
"Virtual Earth Aerial",
|
422
|
{'type': VEMapStyle.Aerial, 'sphericalMercator': true}
|
423
|
);
|
424
|
break;
|
425
|
|
426
|
case 'vehyb':
|
427
|
baseLayer = new OpenLayers.Layer.VirtualEarth(
|
428
|
"Virtual Earth Hybrid",
|
429
|
{'type': VEMapStyle.Hybrid, 'sphericalMercator': true}
|
430
|
);
|
431
|
break;
|
432
|
|
433
|
case 'yahoo':
|
434
|
baseLayer = new OpenLayers.Layer.Yahoo(
|
435
|
"Yahoo Street",
|
436
|
{'sphericalMercator': true}
|
437
|
);
|
438
|
break;
|
439
|
|
440
|
case 'yahoosat':
|
441
|
baseLayer = new OpenLayers.Layer.Yahoo(
|
442
|
"Yahoo Satellite",
|
443
|
{'type': YAHOO_MAP_SAT, 'sphericalMercator': true}
|
444
|
);
|
445
|
break;
|
446
|
|
447
|
case 'yahoohyb':
|
448
|
rebaseLayer = new OpenLayers.Layer.Yahoo(
|
449
|
"Yahoo Hybrid",
|
450
|
{'type': YAHOO_MAP_HYB, 'sphericalMercator': true}
|
451
|
);
|
452
|
break;
|
453
|
|
454
|
case 'mapnik':
|
455
|
baseLayer = new OpenLayers.Layer.OSM();
|
456
|
break;
|
457
|
|
458
|
case 'oam':
|
459
|
baseLayer = new OpenLayers.Layer.XYZ(
|
460
|
"OpenAerialMap",
|
461
|
"http://tile.openaerialmap.org/tiles/1.0.0/openaerialmap-900913/${z}/${x}/${y}.png",
|
462
|
{
|
463
|
sphericalMercator: true
|
464
|
}
|
465
|
);
|
466
|
break;
|
467
|
|
468
|
case 'osmarender':
|
469
|
baseLayer = new OpenLayers.Layer.OSM(
|
470
|
"OpenStreetMap (Tiles@Home)",
|
471
|
"http://tah.openstreetmap.org/Tiles/tile/${z}/${x}/${y}.png"
|
472
|
);
|
473
|
break;
|
474
|
|
475
|
};
|
476
|
|
477
|
return baseLayer;
|
478
|
};
|
479
|
|
480
|
}
|
481
|
|
482
|
|
483
|
(function($){
|
484
|
|
485
|
$.fn.cdm_openlayers_map = function(mapserverBaseUrl, options) {
|
486
|
|
487
|
var opts = $.extend({},$.fn.cdm_openlayers_map.defaults, options);
|
488
|
|
489
|
return this.each(function(){
|
490
|
|
491
|
var openlayers_map = new CdmOpenlayersMap($(this), mapserverBaseUrl, opts);
|
492
|
openlayers_map.init();
|
493
|
|
494
|
}); // END each
|
495
|
|
496
|
}; // END cdm_openlayers_map
|
497
|
|
498
|
})(jQuery);
|
499
|
|
500
|
|
501
|
$.fn.cdm_openlayers_map.defaults = { // set up default options
|
502
|
legendPosition: null, // 1,2,3,4,5,6 = display a legend in the corner specified by the number
|
503
|
displayWidth: 400,
|
504
|
distributionOpacity: 0.75,
|
505
|
legendOpacity: 0.75,
|
506
|
boundingBox: null,
|
507
|
showLayerSwitcher: false,
|
508
|
baseLayerNames: ["osgeo_vmap0"],
|
509
|
defaultBaseLayerName: 'osgeo_vmap0',
|
510
|
maxZoom: 4,
|
511
|
minZoom: 0
|
512
|
};
|
513
|
|