On 11-02-03 01:30 PM, Aníbal Pacheco wrote:
Hi, I'm using gdalbuildvrt to produce a virtual raster layer which can then used in Mapnik and its ogcserver(WMS), everything works except that the result image is black & white and with a very poor resolution. The 2 source tif files used in this test were both colored with a good resolution. Any ideas?
Aníbal, I would suggest examining the resulting vrt to see if there is anything odd about it. Start with gdalinfo to see if it's resolution seems reasonable and if in fact it is 3 bands. You might want to run "gdalinfo -stats xx.vrt" to get band statistics just to verify that the bands are radiometrically distinct. Also, check that the band pixel type is reasonable - the same as the source files. If that all looks ok, then perhaps visually examine the VRT with something like QGIS. After that it comes down to talking to Mapnik people about why there are problems. Best regards, -- ---------------------------------------+-------------------------------------- I set the clouds in motion - turn up | Frank Warmerdam, warmer...@pobox.com light and sound - activate the windows | http://pobox.com/~warmerdam and watch the world go round - Rush | Geospatial Programmer for Rent _______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
