tigers

Handling and manipulation polygons, coordinates, and other geographical objects. The tools include: polygon areas, barycentric and trilinear coordinates (Hormann and Floater, 2006, ), convex hull for polygons (Graham and Yao, 1983, ), polygon triangulation (Toussaint, 1991, ), great circle and geodesic distances, Hausdorff distance, and reduced major axis.

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