If coordinates are given with the input file option or fed from
stdin
, both the input and the output format is "x y z" with one
coordinate pair per line. Reverse transform is performed with the
-r flag.
The format option determines how control points are printed out. A summary on the control points can be printed with the -s flag. The summary includes maximum deviation observed when transforming GCPs and overall RMS. The format option is ignored when coordinates are given with the input file option.