Generating algorithm of principle curvature isolines of free surface based on rectangle mesh tracking
基于矩形网格追踪法的曲面主曲率等值线生成算法*

This paper proposed a generation algorithm for principle curvature isolines of free surface based on rectangle mesh tracking method. First, mapped points on the surface and the corresponding curvatures to optimal development plane. Then gained the point sequences of equivalent curvatures by traversing method on the development plane. Partitioned the point sequences to continuing no-cross open or closed isolines. Finally, tested and verified the algorithm with examples of ruled surface, cone-shaped face and free surface, and compared with triangulation linear interpolation method. The results show that the generation algorithm is more efficient and accurate.