What Mapnik version are you using? Trunk is the only code that supports setting transparency and colors for given data values. Also I be you want to preprocess with gdal_translate not Gdalwarp.
Dane --- \o/ --- Sent from my phone On Jun 7, 2011, at 2:02 AM, Ayahnya Fathimah <[email protected]> wrote: > Hi, > > I would like to draw hillshading using RasterSymbolizer. > the tiff source is a result of gdaldem hillshade process. it is a gray > scaled image. > > supposed the Map bgcolor is defined as #82b2e0 > > How can I achieve that the ocean color in rastersylmolizer is the map bgcolor? > > I already tried to use gdalwarp to replace the ocean part in the tif > image to white. > and set the rastersylmbolyzer mode to multiply. but I dont get #82b2e0 > as color result in the ocean. > I though if the forground is white I will get the bgcolor as a result. > > What I want to achieve is to avoid the ocean is affected by hillshading. > > Any help would be appreciated. > _______________________________________________ > 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
