## 留言板

 引用本文: 沈旭昆, 赵学伟, 齐越, 等 . 一种保留几何及属性边界的网格简化方法[J]. 北京航空航天大学学报, 2006, 32(12): 1485-1489.
Shen Xukun, Zhao Xuewei, Qi Yue, et al. Simplification of unclosed mesh models with geometry and property boundary preservation[J]. Journal of Beijing University of Aeronautics and Astronautics, 2006, 32(12): 1485-1489. (in Chinese)
 Citation: Shen Xukun, Zhao Xuewei, Qi Yue, et al. Simplification of unclosed mesh models with geometry and property boundary preservation[J]. Journal of Beijing University of Aeronautics and Astronautics, 2006, 32(12): 1485-1489. (in Chinese)

## 一种保留几何及属性边界的网格简化方法

###### 作者简介:沈旭昆(1965-),男,云南昆明人,教授,xkshen@buaa.edu.cn.
• 中图分类号: TP 391

## Simplification of unclosed mesh models with geometry and property boundary preservation

• 摘要: 在实际应用领域,三维模型除包含由三角形网格构成的几何、拓扑信息外,还包含颜色、纹理、法矢量等属性信息,因此数据量较大,且不可避免地存在边界和孔洞.基于三角形折叠的方法,对误差矩阵的计算和误差控制方法进行了改进,并提出了几何及属性边界三角形的概念,给出了一种保留原始模型边界及属性信息的简化算法.该算法针对不同的边界情况将原始三角形网格划分为边界三角形、角点三角形、内部三角形及特征三角形,并采取相应的约束策略,在减小模型数据量的同时,较好地保留了边界和属性信息,并且生成递进网格文件,为包含属性的非封闭网格模型提供了连续多分辨率的模型重现.实验结果证明该方法快速有效,已成功应用于基于Web的三维递进传输和发布.

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##### 出版历程
• 收稿日期:  2006-07-26
• 刊出日期:  2006-12-31

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