| 基于型面曲率的三角网格快速自适应细分算法 |
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| 引用本文： | 孙殿柱,朱昌志,李延瑞.基于型面曲率的三角网格快速自适应细分算法[J].北京交通大学学报(自然科学版),2009,33(4). |
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| 作者姓名： | 孙殿柱 朱昌志 李延瑞 |
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| 作者单位： | 山东理工大学,机械工程学院,淄博,255091;山东理工大学,机械工程学院,淄博,255091;山东理工大学,机械工程学院,淄博,255091 |
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| 基金项目： | 国家“863计划”项目资助(2006AA04Z105) |
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| 摘 要： | 提出一种基于型面曲率的三角网格快速自适应细分算法.该算法通过建立三角网格动态空间索引结构,快速准确获取局部型面参考数据并计算型面曲率.对曲率较大区域进行细分,对较平坦区域只进行网格顶点重定位,不进行面片分裂,实现三角网格的自适应细分.实例证明该算法可提高模型的光顺性与细分效率,以相对较少的面片准确表达模型型面特征信息.
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| 关 键 词： | 逆向工程 三角网格 空间索引结构 型面曲率 自适应细分 |
Accelerating and Self-Adaptive Algorithm for Triangular Meshes Subdivision Based on Model Curvature |
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| SUN Dianzhu,ZHU Changzhi,LI Yanrui.Accelerating and Self-Adaptive Algorithm for Triangular Meshes Subdivision Based on Model Curvature[J].JOURNAL OF BEIJING JIAOTONG UNIVERSITY,2009,33(4). |
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| Authors: | SUN Dianzhu ZHU Changzhi LI Yanrui |
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| Institution: | School of Mechanical Engineering;Shandong University of Technology;Zibuo 255091;China |
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| Abstract: | Based on model curvature,an accelerating and self-adaptive algorithm for triangular meshes subdivision is proposed,which includes three steps: first,the spatial index structure of triangular meshes is established;then,the local model reference data is obtained based on the structure,and its curvature is computed;lastly,the area with larger curvature is subdivided and the flat area isn't subdivided,and the adaptive subdivision of triangular meshes is realized.The results prove that the algorithm can improve ... |
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| Keywords: | reverse engineering triangular meshes spatial index structure model curvature self-adaptive subdivision |
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