id summary reporter owner description type status priority milestone component version severity resolution keywords cc 6340 GDAL doesn't support some Proj4 variable flags (ex. no_rot) bmoregeo warmerdam "I am trying to add projection information to an existing raster using a proj4 string. The input proj4 string is as follows +proj=omerc +lat_0=0 +lonc=0 +alpha=87.90209000000001 +x_0=10394275.61336197 +y_0=5942765.637300909 +ellps=WGS84 +towgs84=0,0,0,0,0,0,0 +to_meter=0.04583774658203 +no_defs +no_rot +axis=end When I execute gdal_translate -of PNG -a_srs ""+proj=omerc +lat_0=0 +lonc=0 +alpha=87.90209000000001 +x_0=10394275.61336197 +y_0=5942765.637300909 +ellps=WGS84 +towgs84=0,0,0,0,0,0,0 +to_meter=0.04583774658203 +no_defs +no_rot +axis=end"" sample.png cli_prj.png gdalinfo -proj4 cli_prj.png the resulting proj4 string is missing the +no_rot and +axis=end flags +proj=omerc +lat_0=0 +lonc=0 +alpha=87.90209000000001 +k=1 +x_0=10394275.61336197 +y_0=5942765.637300907 +gamma=0 +ellps=WGS84 +towgs84=0,0,0,0,0,0,0 +to_meter=0.04583774658203 +no_defs " defect closed normal default 1.10.1 normal invalid no_rot, axis, proj4