Package: libgpcl0 (2.32-1) [multiverse]

general polygon clipper library

A flexible and highly robust polygon set operations library for use with C applications, as referenced in the comp.graphics.algorithms FAQ and the UIUC Computational Geometry Pages.

Features:

   * Difference, intersection, exclusive-or and union clip operations are
     supported.
   * Polygons may be comprised of multiple disjoint contours.
   * Contour vertices may be given in any order - clockwise or
     anticlockwise.
   * Contours may be convex, concave or self-intersecting.
   * Contours may be nested (i.e. polygons may have holes).
   * Output may take the form of either polygon contours or tristrips.
   * Hole and external contours are differentiated in the result.
   * Coincident edges and degenerate regions are handled correctly.

Homepage: http://www.cs.man.ac.uk/~amurta/software/index.html#gpc