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]]