Hi Matt, great question! I say that because I've asked the same thing a couple times in the last week on both the user and dev lists (see my post from this morning).
As near as I can tell mapnik gets the RGB bands when it reads in the image from the file itself, it's not set with the style. I hope I'm wrong though because it really should be adjustable. In your case I'm not sure why it's not setting them to the default RGB bands that are in the file itself - I had thought that if there were bands set in the file that's what it used but if it's not doing that either...I'm not sure. I keep looking at the code trying to figure this out but nothing yet....I'll post back here if I figure it out. Good luck! -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Matt Bartolome Sent: Monday, June 16, 2008 5:49 PM To: [email protected] Subject: [Mapnik-users] GDAL raster rendering Hi, I'm successfully rendering GeoTiffs using the GDAL datasource in gray scale but would like to render them in color. gdalinfo outputs: Band 1 Block=12001x1 Type=Byte, ColorInterp=Gray Overviews: 3001x2001, 1501x1001, 751x501, 376x251, 188x126, 94x63 Metadata: LAYER_TYPE=athematic Band 2 Block=12001x1 Type=Byte, ColorInterp=Undefined Overviews: 3001x2001, 1501x1001, 751x501, 376x251, 188x126, 94x63 Metadata: LAYER_TYPE=athematic Band 3 Block=12001x1 Type=Byte, ColorInterp=Undefined Overviews: 3001x2001, 1501x1001, 751x501, 376x251, 188x126, 94x63 Metadata: LAYER_TYPE=athematic All I've got in my style thus far is: <Style name="raster"> <Rule> <RasterSymbolizer> </RasterSymbolizer> </Rule> </Style> When viewing the geotiff in arcmap it sets Red, Green, Blue as 120,123,100 automatically. Is that something read off the file that gdal isn't seeing or is that something I set myself? Thanks, Matt _______________________________________________ Mapnik-users mailing list [email protected] https://lists.berlios.de/mailman/listinfo/mapnik-users _______________________________________________ Mapnik-users mailing list [email protected] https://lists.berlios.de/mailman/listinfo/mapnik-users
