Hi Hermann, thank you very much.
peifer wrote > At least it isn't a bug. Without -s_srs, the CRS info from the png file is > used which specifies TOWGS84[0,0,0,0,0,0,0]. When specifying the EPSG code > via -s_srs, the parameter +nadgrids=@null is used (in both cases EPSG:3857 > and EPSG:3785). But there is another strange thing. Try to convert the original png file in GTiff p with gdal_translate. Then apply the same gdalwarp commands. In both, with -s_srs and without -s_srs parameter, you obtain the same bounding box. I have changed only the file format, and I obtain different results. Is this normal? Best regards, Andrea -- View this message in context: http://osgeo-org.1560.x6.nabble.com/A-strange-thing-with-a-png-geospatial-file-and-gdalwarp-Is-it-a-bug-tp5075948p5076002.html Sent from the GDAL - Dev mailing list archive at Nabble.com. _______________________________________________ gdal-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/gdal-dev
