Le jeudi 13 juin 2013 06:29:32, Phil Scadden a écrit : > I was hacking gdal2tiles a bit by running pnqnq of a base tile > immediately after creating it (I want to be able to run partial updates > on a TMS which has been pngnq optimised). No problem with that, but > updating the overview tiles produces issues. It does > writeraster(......,readraster(....)) on those png files and in the > output, then colour palette is more of grayscale (actually a readscale).
Not sure to completely follow you ... > > Does GDAL read quantized PNG properly but some intermediary processing > needed (what??) or is there a problem with the driver? I've just done some quick testing by running pngnq on a sample PNG, and the GDAL PNG driver seems to handle the generated XXXXX-nq8.png file well. -- Geospatial professional services http://even.rouault.free.fr/services.html _______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
