Hi Find it If Useful :-

Bound Functions
    These are the functions provide by the Inline-C code. See function
+s.c in
    the source package for intimate details.

  from_file
    Loads a from a file into your gpc object. See the GPC library
    documentation for details.

      $gpc->from_file($filename, $want_hole);

  to_file
    Writes to a file.

      $gpc->to_file($filename, $want_hole);

  clip_to
    Clips the $gpc object to the $othergpc object.

    $action may be any of the following:

      INTERSECT
      DIFFERENCE
      UNION

      $gpc->clip_to($othergpc, $action);

    Be wary. This interface may need to change.

  add_polygon
    Adds a polygon to the gpc object. @points is a list of array refer
+ences
    which describe the point of the polygon. $hole is 1 or 0 (0 to not
+ add a
    hole.)

      $gpc->add_polygon(\@points, $hole);

  get_polygons
    Gets the polygons from the gpc object. I'm not sure how to tell yo
+u if
    they are holes or not. @pgons will be a list of refs to lists of r
+efs.

      @pgons = $gpc->get_polygons();

Helper Functions
    Pure-perl implementation from here down.

  as_string
      $gpc->as_string();
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