Polygon Triangulation
Daniel Vlasic
Algorithm -- Triangulating a Monotone Polygon -- Overview
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property of any monotone polygon P:
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starting at the highest vertex, we always go down following
either the left or the right boundary chain of P
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use this property to make a greedy algorithm
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visit all vertices in order of decreasing y-coordinate
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add diagonals to vertices above the sweepline whenever possible
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