Visualization of Implicit Surfaces Using Adaptive Tetrahedrizations
Visualization of Implicit Surfaces Using Adaptive Tetrahedrizations
复制标题
使用自适应四面体可视化隐式曲面
DOI：
10.1109/dagstuhl.1997.1423119
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发表时间：
1997
期刊：
影响因子：
--
通讯作者：
Michael Wehle
中科院分区：
文献类型：
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作者：
H. Müller;Michael Wehle
隐式定义的表面f（x，y，z）=0通常通过多边形的近似网格来可视化。过去实践的一种计算近似网格的方法是将感兴趣的区域细分为空间单元，通过编译被表面穿过的那些单元的表面图案来从空间单元提取表面。我们的解决方案基本上遵循这种方法，但在几个方面进行了改进。该空间自适应分区使用的计划，既不需要多个通道，也不存储邻域信息。此外，近似表面网格的单元是所得到的空间单元分解的一部分。不需要“顶点捕捉”的后处理步骤来改进表面网格。
Implicitly defined surfaces f(x,y,z)=0 are usually visualized by an approximating mesh of polygons. One approach of calculating an approximating mesh, practiced in the past, is to subdivide the regions of interests into spatial cells from which the surface is extracted by compiling surface patterns of those cells which are traversed by the surface. Our solution basically follows this approach, but improves it with respect to several aspects. The space is partitioned adaptively using a scheme which neither requires multiple passes nor storing neighborhood information. Furthmore, the cells of the approximating surface mesh are part of the resulting spatial cell decomposition. A post-processing step of ''vertex snapping'' in order to improve the surface mesh is not required.