Usage: gdaltransform [--help] [--help-general]
[-i] [-s_srs <srs_def>] [-t_srs <srs_def>] [-to >NAME>=<VALUE>]...
[-s_coord_epoch <epoch>] [-t_coord_epoch <epoch>]
[-ct <proj_string>] [-order <n>] [-tps] [-rpc] [-geoloc]
[-gcp <pixel> <line> <easting> <northing> [elevation]]... [-output_xy]
[srcfile [dstfile]]