Markus Neteler wrote: > >> Null support is missing (r.external records any null value reported by > >> GDAL, but G_get_raster_row() etc ignore it; I suspect that it will > >> treat zero as null due to the absence of a null file). > > > > Null support has been added. > > I have now tested (in my local 6.4 backport) a shaded terrain map (GeoTIFF). > The 0 pixels are registered as NULL pixels, leading to white areas instead > of black in case of cast terrain shadow. > > So I confirm that zero is treated as NULL now. > Could the GDAL Null value be used instead?
Null support was added in r32924, and seems to work. -- Glynn Clements <[EMAIL PROTECTED]> _______________________________________________ grass-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-dev
