[Tilecache] tilecache-mapnik

[Don Martin]

I’ve got a windows 2003 IIS6 box which appears to be setup adequately to
support tilecache.

Mapnik renders images from OSM data in a postgis/postgressql database
independently (ie: render_image.py)

If I run index.html with:

map = new OpenLayers.Map( $('map'), {'maxResolution': 360/512});
      layer = new OpenLayers.Layer.WMS( "VMap0", 
          "tilecache.py?", {layers: 'basic', format: 'image/png' } );
      map.addLayer(layer);
      map.addControl(new OpenLayers.Control.Permalink());
      if (!map.getCenter()) map.zoomToMaxExtent();

[basic]
type=WMSLayer
url=http://labs.metacarta.com/wms/vmap0
extension=png

the image is rendered and saved to the cache folder OK.

If it attempt a mapnik rendering however:

      map = new OpenLayers.Map( $('map'), {
            maxResolution: 156543.0339/4, 
            maxExtent: new
OpenLayers.Bounds(-16697000,8610000,-16667000,8640000), 
            numZoomLevels: 18,
            projection: 'EPSG:900913',
            'units':'m'});

var layerMapnik = new OpenLayers.Layer.WMS( "dispatch", 
      "tilecache.py?", {layers: 'osm-merc', format: 'image/png' } );
map.addLayer(layerMapnik);
map.zoomToMaxExtent();     

[osm-merc]
type=MapnikLayer
mapfile=C:\mapnik\osm.xml
bbox=-16697000,8610000,-16667000,8640000
resolutions=156543.033900000,78271.516950000,39135.758475000,19567.879237500,9783.939618750,4891.969809375,2445.984904688,1222.992452344,611.496226172,305.748113086,152.874056543,76.437028271,38.218514136,19.109257068,9.554628534,4.777314267,2.388657133,1.194328567,0.59716428337097171575,0.298582142
srs=EPSG:900913
metaTile=yes
metaBuffer=40

the folders are created in the cache but no image is rendered or written to
the cache folders.

Would appreciate some feedback on where I’m going astray.


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