2203 複雑な三角形メッシュから効果的に四面体を生成する方法(OS22.次世代CAD/CAM/CAE/CG/CSCW/CAT/C-Control (1),オーガナイズドセッション)

概要

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In this paper, we proposed a robust tetrahedron generation method based on advancing front method. This method inherits advantages from Delaunay method and advancing front method. Firstly, the minimum container box of mesh surface is calculated and points are inserted into the box. Secondly, for every surface triangle, a sphere is defined with a radius which equals to the average value of the edge length of the triangle and points in the sphere is divided into two groups according to whether they are already used for other triangles or not and the shape quality of the tetrahedron generated by them and the triangle. Then proper point is picked out to generate tetrahedrons layer by layer from surface to the inner. And a shoes model with both convex and concave surface is chosen for the experiment. The result proved the robust and correct of the method.
2009-10-10