一种基于渐变物理属性的三角网格简化方法

三角网络简化方法的提出是为了能够在保证一定精度的同时尽可能地降低数据规模，然而现有的三角简化算法均只考虑了几何属性，因此在对过渡状态进行三角简化时无法根据物理属性的渐变给出相应的简化原则。该文利用过渡率来表征物理属性的渐变特性，定义ＴＨ距离作为误差阈值的估计，运用基于临界点与过渡率邻近点的环分裂算法对顶点影响域进行重新三角化，较好地在简化网格规模的同时保持了渐变物理属性的原有特征细节。文后给出的过

A Triangular Simplification Method Based on Transitional Physical Features

Triangular simplification method was proposed to reduce the number of vertices with preserving some precision. But current researches only pay attention to geometry attributes, so can not produce simplified transition status according to the transitional physical features. This paper uses transitional ratio to characterize the transitional feature, and defines TH distance as error threshold, retriangulates the voxel effected field with ring splitting algorithm. The simplification example given behind proves that this method is effective and robust.