[Tilecache] mapnik + tilecache + openlayers

kryptonite paschatap at gmail.com
Mon May 18 16:02:58 EDT 2009


Hi, 
   I have been trying for the past few days to get a simple map to display
with mapnik+tilecache+openlayers. I have installed mapnik , and got the
default rundemo.py running , map.xml being one that was generated. the image
files were generated too like the documentation on mapnik says. I have also
successfully displayed a map using openlayers and tilecache but this time
was with mapserver.
   But coming to the main problem which is using
tilecache+openlayers+mapnik. Now all i did in the tilecache.cfg was include
a layer like this: 

[testlayer]
type=Mapnik
mapfile=C:\mapnik_0_6_0\demo\python\map.xml
bbox=-8024477.28459,5445190.38849,-7381388.20071,5662941.44855
maxResolution=2545.4906698
extent_type=loose
srs=EPSG:900913

in the index.html , I included:

var options = {
		                 controls: [
						 			new OpenLayers.Control.MouseDefaults(),
						 			new OpenLayers.Control.KeyboardDefaults(),
						 			new OpenLayers.Control.PanZoomBar(),
						 			new OpenLayers.Control.LayerSwitcher(),
						 			new OpenLayers.Control.Permalink()
						 		],						 
						 maxResolution: 2545.4906698,
						 maxExtent: new
OpenLayers.Bounds(-8024477.28459,5445190.38849,-7381388.20071,5662941.44855),
						 units: "m",
						 projection: "EPSG:900913"

					  };

        function init(){
            map = new OpenLayers.Map( 'map', options);
            layer = new OpenLayers.Layer.WMS( "VMap0",
                    "/cgi-bin/tilecache.cgi?",
                    					{
                    						layers : 'testlayer

							}
					 );
            map.addLayer(layer);            
        }

But after doing all this , the browser only displays pink tiles.There is no
folder created for the testlayer images. I am simply lost. Can anyone point
out what I am really missing here.I would really appreciate it.
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