[Tilecache] Setting Up tilecache to use mapnik

[Jeffrey04]

I think i have found out what the problem is, it seems like the web server
user needs to be able to access the shp file....


Jeffrey04 wrote:
> 
> Hi,
> 
> I am trying to setup a tilecache installation that uses mapnik generated
> tiles. However, the basic layer that comes with the default installation
> works but not my mapnik layer. All I get from my mapnik layer is a set of
> tiles in steelblue background color (as defined in the xml file)
> 
> this is what I have in my tilecache.cfg
> 
> [cache]
> type=Disk
> base=/tmp/tilecache
> 
> [basic]
> type=WMS
> url=http://labs.metacarta.com/wms/vmap0
> extension=png
> 
> [mapnik]
> type=Mapnik
> mapfile=/home/jeffrey04/Projects/mapnik/world_styles.xml
> metaTile=yes
> #spherical_mercator=true
> tms_type=google
> srs=EPSG:900913
> levels=18
> metaBuffer=40
> 
> this is my xml file for mapnik (taken from mapnik tutorial, and uses the
> mapnik provided world borders)
> 
> <?xml version="1.0" encoding="utf-8"?>
> <!DOCTYPE Map>
> <Map bgcolor="steelblue" srs="+proj=latlong +datum=WGS84">
> 
>     <Style name="my">
>         <Rule>
>             <PolygonSymbolizer>
>                 <CssParameter name="fill">#f2eff9</CssParameter>
>             </PolygonSymbolizer>
>             <LineSymbolizer>
>                 <CssParameter
> name="stroke">rgb(50%,50%,50%)</CssParameter>
>                 <CssParameter name="stroke-width">0.1</CssParameter>
>             </LineSymbolizer>
>         </Rule>
>     </Style>
> 
>     <Layer name="world" srs="+proj=latlong +datum=WGS84">
>         <StyleName>my</StyleName>
>         <Datasource>
>             <Parameter name="type">shape</Parameter>
>             <Parameter
> name="file">/home/jeffrey04/Projects/mapnik/world_borders/world_borders</Parameter>
>         </Datasource>
>     </Layer>
> 
> </Map>
> 
> the open layers code
> 
>         <!--
>         var map, layer;
> 
>         function init(){
>             map = new OpenLayers.Map( $('map'), {'maxResolution':
> 360/512});
>             map.addLayer(
>                 new OpenLayers.Layer.WMS( "mapnik",
>                     "tilecache.cgi?", {layers: 'mapnik', format:
> 'image/png' } )
>             );
>             layer = new OpenLayers.Layer.WMS( "basic",
>                     "tilecache.cgi?", {layers: 'basic', format:
> 'image/png' } );
>             map.addLayer(layer);
>             map.addControl(new OpenLayers.Control.LayerSwitcher())
>             map.addControl(new OpenLayers.Control.Permalink());
>             if (!map.getCenter()) map.zoomToMaxExtent();
>         }
>         // -->
> 
> The xml file is tested working by passing it to nik2img.py script that
> generates .png file from xml.
> 
> Is there any detailed documentation on how to setup tilecache to work with
> mapnik? Besides that, how can I diagnose a problem? is there a log or
> something?
> 
> Regards,
> Jeffrey04
> 

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