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I need to triangulated a polygon for rendering in opengl es on android ( no glu triangulation available) Is there an already known algorithm for this? The polygon can be convex or concave (with no holes)

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There are several algorithms out there. One of the most commonly used algorithm is the ear clipping algorithm. Here's a page with some more detail about this triangulation algorithm.

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Awsome thanks ill check it out – Jason Mar 12 '11 at 14:33
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There are some algorithms and implementation of polygon triangulation on these books:

  • Computational Geometry: Algorithms and Applications. Chapter 3: Polygon Triangulation.
  • Computational Geometry in C. Chapter 1: Polygon Triangulation.
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