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复杂曲面上的四边形网格生成方法 被引量:8

AN AUTOMATIC QUADRANGULAR MESH GENERATION ALGORITHM ON 3D SURFACE
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摘要 提出了一种曲面上全四边形网格的生成方法.该方法从曲面的边界开始,向内逐个地生成单元,利用曲面的局部形状特征控制单元的尺寸.这样可以适应复杂的边界形状,通用性较强.文中介绍了算法的基本思想,提出了多个曲面相邻情况下边界上节点的生成以及一个新的节点环冲突检测方法.最后给出了两个网格生成的实例. An automatic algorithm for generating all quadrangle meshes on 3D surface is proposed. It is carried out directly in 3D space. It can control the size of elements and adapts itself to complex boundaries. Generation of nodes starts from the boundaries of multiple surfaces and a new method that detects collisions between node loops are presented. Two examples are given to illustrate the performance of the algorithm.
出处 《计算机辅助设计与图形学学报》 EI CSCD 北大核心 1999年第6期521-524,共4页 Journal of Computer-Aided Design & Computer Graphics
基金 国家自然科学基金 国家教委博士点基金
关键词 四边形网格 曲面 有限元 网格生成 汽车 mesh generation, quadrilateral mesh, freeform surface, FEM preprocessor
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参考文献2

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同被引文献39

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