Hello, I'm new to OpenLayers, anyway I'm trying to ad an heatmap.
I tried two different ways to get the heatmap, the first one <html><body> <div id="demoMap"></div> <script src=" <http://www.openlayers.org/api/OpenLayers.js> http://www.openlayers.org/api/OpenLayers.js";></script> <script> map = new OpenLayers.Map("demoMap"); map.addLayer(new OpenLayers.Layer.OSM()); map.zoomToMaxExtent(); var layer = new OpenLayers.Layer.OSM(); heatmap = new OpenLayers.Layer.Heatmap("Heatmap Layer", map, layer, null, {visible: true, radius: 15}, {isBaseLayer: false, opacity: 0.3, projection: new OpenLayers.Projection("EPSG:4326")}); var lon, lat, c; for(var i=0; i<100; i++) { lon = i; lat = i; c = Math.floor(Math.random()*50); heatmap.addDataPoint(new OpenLayers.LonLat(lon, lat), c); } </script> </body></html> the second one <html><body> <div id="demoMap"></div> <script src=" <http://www.openlayers.org/api/OpenLayers.js> http://www.openlayers.org/api/OpenLayers.js";></script> <script> var testData={ max: 46, data: [{lat: 33.5363, lon:-117.044, count: 1}, {lat: 35.8278, lon:-78.6421, count: 1}] }; layer = new OpenLayers.Layer.MapServer( "OpenLayers WMS", " <http://labs.metacarta.com/wms/vmap0> http://labs.metacarta.com/wms/vmap0";, {layers: 'basic'} ); map = new OpenLayers.Map("demoMap"); map.addLayer(new OpenLayers.Layer.OSM()); map.zoomToMaxExtent(); heatmap = new OpenLayers.Layer.Heatmap( "Heatmap Layer", map, layer, {visible: true, radius:10}, {isBaseLayer: false, opacity: 0.3} ); heatmap.setDataSet(testData); map.addLayer(heatmap); </script> </body></html> I can only visualize the map without the heatmap layer. Thank you in advance for any suggestion.
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