Options:
      -h Prints this usage information.
      -o Output object file name.
      Scan converts the given geometric object into a domain object.
      The input object is read from stdin and the output output is written
      to stdout unless filenames are given.
      Example: WlzRasterObj in.wlz
      The input Woolz object is read from in.wlz, and the scan converted
      object is written to stdout.