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Parallelized ear clipping for the triangulation and constrained Delaunay triangulation of polygons

机译:用于三角测量的平行化耳朵剪裁和多边形的约束德拉尼亚三角测量

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摘要

We present an experimental study of strategies for triangulating polygons in parallel on multi-core machines, including the parallel computation of constrained Delaunay triangulations. As usual, we call three consecutive vertices of a (planar) polygon an ear if the triangle that is spanned by them is completely inside the polygon. Extensive tests on thousands of sample polygons indicate that about 50% of vertices of most polygons form ears. This experimental result suggests that polygon-triangulation algorithms based on ear clipping might be well-suited for parallelization.
机译:我们在多核机上展示了三角形多边形的策略的实验研究,包括受约束Delaunay三角形的并行计算。 像往常一样,如果它们被它们跨越的三角形完全在多边形内,我们会调用3个连续三个(平面)多边形的顶点。 对数千个样本多边形的广泛测试表明大多数多边形的60%的顶点形成耳朵。 该实验结果表明,基于耳朵剪裁的多边形三角测量算法可能非常适合并行化。

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