基于三角面片顶点均值的网格编辑方法

A Mesh Editing Approach Based on Calculating the Average Value of Cell's Vertexes

针对虚拟整形手术中待整形部位的三维模型曲面编辑问题,提出一种基于三角面片顶点均值网格编辑方法.该方法在保留网格原有拓扑结构的基础上,保持了网格曲面的原有曲率,实现了快速有效的局部网格编辑;结合网格细分方法实现在不同分辨率下对网格曲面进行整体编辑.同时,为了增强网格模型显示的真实感,通过网格简化、网格平滑、网格数据点法向量计算、纹理贴图等方法,对网格模型进行优化,提高了整形后网格显示效果.实验证明,该方法交互方式简便,变形效果较好.

On the issue of 3D mesh editing method in computer aided plastic surgery, this paper, based on the analysis of the FFD and subdivision algorithms, proposes the mesh editing method, which achieves the rapid and effective mesh edit on the basis of retaining the original mesh topology and maintaining the original mesh curvature. Combined with the Loop subdivision algorithm, the local mesh editing method achieves the rapid and effective mesh edit in different resolutions. Simultaneously, in order to enhance the reality of the mesh model＇ s performance it optimizes the mesh model by simplifying, smoothing, calculating the normal vector of the mesh data, and texture mapping method to improve plastic mesh effect after being renovated. This method demonstrates the efficiency and effectiveness of the algorithm with comprehensive editing results with experiments.