The former situation can be solved by Delaunay Triangulation algorithm on two-dimensional arbitrary domain, and the robust of algorithm is improved by correcting the bug in algorithm.

• 对于轮廓的二维投影域 可以使用 Delaunay 三 角剖分二维任意域的算法来处理，并且在应用中对于原算法存在的缺陷进行了修正，提高了算法的健壮性；