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工程设计学报  2006, Vol. 13 Issue (3): 185-190    
工程设计理论、方法与技术     
三角网格模型上的四边形曲线网生成新方法
 王海霞1, 孙玉文2, 苏学成1
1.山东科技大学 省机器人与智能技术重点实验室, 山东 青岛 266510;
2.大连理工大学 教育部精密与特种加工重点实验室, 辽宁 大连 116024
New method of generating quadrilateral curvilinearmeshes from triangular model
 WANG  Hai-Xia1, SUN  Yu-Wen2, SU  Xue-Cheng1  
1.Key Laboratory for Robot & Intelligent Technology of Shandong Province, Shandong University of Science and Technology, Qingdao 266510, China; 2.Key Laboratory for Precision & Non-traditionalMachining of Ministry of Education, Dalian University of Technology, Dalian 116024, China
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摘要: 四边形网格划分是组合曲面建模技术的首要条件。针对海量流形三角网格数据,提出了基于网格简化技术与调和映射算法的四边形网格生成新方法——映射法。该方法采用基于顶点删除的网格简化技术对三角网格模型进行简化,进而借助调和映射算法将简化网格映射到二维平面上进行四边形划分,并将所获得的平面四边形节点数据逆映射回物理域,采用短程线边界形式最终得到适于组合曲面建模的空间四边形拓扑。该方法简单、实用,运行速度较快,实际的算例也验证了方法的有效性与可行性。
关键词: 四边形划分组合曲面网格简化调和映射    
Abstract: Quadrilateral partition on triangular meshes data is the primary process of composite surface modeling. A novel method of quadrilateral partition on cloudy manifold triangular meshes is presented, which is based on algorithms of mesh simplification and harmonic mapping. Simplification technology grounded in removing vertexes is adopted to simplify triangular mesh model; and then quadrilateral partition is gained by mapping the simplified mesh to 2D parameter domain through harmonic map. By inverse mapping the gained data to 3D space and geodesic technology, 3D quadrilateral topological partition, fitting composite curve modeling, is eventually implemented. This method is simple, practical and has high operation speed. Real illustrations demonstrate that it is effective and feasible.
Key words: quadrilateral partition    composite surface    mesh simplification    harmonic mapping
出版日期: 2006-06-28
基金资助:

青岛智能控制与机器人重点实验室资助项目

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引用本文:

王海霞, 孙玉文, 苏学成. 三角网格模型上的四边形曲线网生成新方法[J]. 工程设计学报, 2006, 13(3): 185-190.

WANG Hai-Xia, SUN Yu-Wen, SU Xue-Cheng. New method of generating quadrilateral curvilinearmeshes from triangular model[J]. Chinese Journal of Engineering Design, 2006, 13(3): 185-190.

链接本文:

https://www.zjujournals.com/gcsjxb/CN/        https://www.zjujournals.com/gcsjxb/CN/Y2006/V13/I3/185

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[2] 赵东福. Bezier三角组合曲面的局域设计[J]. 工程设计学报, 2002, 9(5): 261-264.