A Modified Generating Algorithm of Progressive Mesh Model Based on the Importance Degree of Vertex
A Modified Generating Algorithm of Progressive Mesh Model Based on the Importance Degree of Vertex
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DOI：
10.4028/www.scientific.net/amr.1030-1032.1623
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发表时间：
2014-09
期刊：
影响因子：
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通讯作者：
H. Ming;Liu Na
中科院分区：
文献类型：
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作者：
H. Ming;Liu Na
为了实现三维模型的渐进网格表示，改进了网格简化中的折叠代价计算方法。首先从smf数据文件中获取模型数据，在内存中快速建立三维模型，并重新设计了加兰QEM算法的权值计算方法。以顶点附近三角形平面法线最大偏差的平方作为顶点的重要度，并将其纳入误差度量公式，通过简化生成渐进网格。实验结果表明，该算法简洁，网格生成速度快，模型轮廓信息保持良好。
In order to implement progressive mesh representation of 3D model, improve the computing method of collapse cost in mesh simplification. Firstly, obtains model data from smf data file, and rapidly establishes the 3D model in the memory, and redesigns weight computing method of Garland QEM algorithm. Using the square of the largest deviation of triangular plane normal adjacent to the vertex as the importance degree of vertex, and brings it into error metric formula, progressive mesh is generated by simplifying. The following experiment shows that the algorithm is succinct, and the generating speed of mesh and the contour information of model are well preserved.