Interactive Deformation of 3D Mesh Models
Interactive Deformation of 3D Mesh Models
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DOI：
10.3722/cadaps.2008.47-57
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发表时间：
2008
影响因子：
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通讯作者：
H. Masuda;Kenta Ogawa
中科院分区：
文献类型：
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作者：
H. Masuda;Kenta Ogawa
摘要本文提出了一个用于交互式变形3D网格模型的框架。 3D网格模型通常用于有限元分析中，但是现有的基于表面的变形方法无法始终如一地变形量元件。在此处提出的方法中，将3D网格模型中的顶点分为边界顶点和内部顶点。边界顶点的处理方式与基于特征的基于表面的变形相同。在每个边界顶点处定义平均曲率约束，位置约束和形式功能约束在边界顶点可选指定。在每个内部顶点，局部体积被构造为共享内部顶点的一组polyhedra，并根据平均值坐标分配约束。平均值坐标和平均曲率正态的组合非常有效，可以自然地变形3D网格模型的边界和内部，而没有复杂的加权方案或约束的旋转...
AbstractThis paper proposes a framework for interactively deforming 3D mesh models. 3D mesh models are often used in finite element analysis, but existing surface-based deformation methods fail to deform volumetric elements consistently. In the method proposed here, vertices in a 3D mesh model are classified into boundary vertices and interior vertices. Boundary vertices are treated in the same way as a feature-preserving surface-based deformation; a mean curvature constraint is defined at each boundary vertex, and positional constraints and form-feature constraints are optionally specified at boundary vertices. At each interior vertex, a local volume is constructed as a set of polyhedra that share an interior vertex, and a constraint is assigned based on mean value coordinates. The combination of the mean value coordinates and the mean curvature normals work very well to deform both the boundary and interior of 3D mesh models naturally, without complicated weighting schemes or the rotation of constraints...