Hi, I'm facing the same problem after converting the shapefile to spherical mercator with ogr2ogr: ogr2ogr -t_srs EPSG:900913 -s_srs EPSG:4326 countries_point_lonlat_sorted_merc.shp countries_point_lonlat_sorted.shp
Projection used in mapnik xml: <Layer name="Country Labels" srs="+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgri...@null"> I've also tried different shapefiles. Same result. I'm using TileCache to pre-generate the tiles. Bjørn 2010/1/16 Warren Vick <[email protected]>: > Hello Bjørn, > > I had similar issues when first working with Mapnik. The only solution I > found was to convert all my data to spherical Mercator, rather than try to > work with a mix. No problems since. > > Regards, > Warren > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Bjørn Sandvik > Sent: 15 January 2010 9:42 PM > To: [email protected] > Subject: [Mapnik-users] Problem with spherical mercator at one zoom level > > Hi, > > I'm experiencing a strange error with Mapnik rendering labels from a point > shapefile. For zoom level 1 only labels on the southern hemisphere (the two > bottom tiles) are rendered - see the image attachment. The other zoom levels > are rendered correctly. It works when using standard latitude/longitide > projection (EPSG:4326), but not "spherical mercator". > > tilecache.cfg > > [country_labels2] > type=Mapnik > mapfile=C:\EarthAtlas\maps\merc_country_labels2.xml > spherical_mercator=true > metaTile=true > metaBuffer=50 > metaSize=2,2 > > merc_country_labels2.xml > > <?xml version="1.0" encoding="utf-8"?> > <!DOCTYPE Map> > <Map srs="+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 > +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgri...@null"> > <Style name="country_labels"> > <Rule> > <TextSymbolizer name="nor" face_name="DejaVu Sans Book" size="8" > wrap_width="50" fill="black" halo_fill="white" halo_radius="1" dy="0" > dx="0" vertical_alignment="middle" allow_overlap="false"/> > </Rule> > </Style> > <Layer name="Cities" srs="+proj=latlong +datum=WGS84"> > <StyleName>country_labels</StyleName> > <Datasource> > <Parameter name="encoding">latin1</Parameter> > <Parameter name="type">shape</Parameter> > <Parameter > name="file">originals/countries_point_lonlat_sorted/countries_point_lonlat_sorted</Parameter> > </Datasource> > </Layer> > </Map> > > I've also tried to reproject the shapefile before rendering the tiles > - but the error was still there. > > Anyone else who have experienced this problem? > > Cheers, > Bjørn > > http://blog.thematicmapping.org > _______________________________________________ Mapnik-users mailing list [email protected] https://lists.berlios.de/mailman/listinfo/mapnik-users
