鞋楦, 定制CAD, 拉普拉斯网格变形, 特征线

A kind of mesh deformation method driven by curve was put forward and it was applied to shoe last design system. Based on topological neighborhood information of triangular mesh model,cross-section contour curve was extracted rapidly;feature point set was extracted by extreme value method of principal curvature,moving least-squares method was used to thin the point set and made it ordered and sparse to fit B-Spline curve. Through such as editing cross-section contour curve or feature curve interactively to make shoe last redesigned come true. Finally,it showed how the method apply to shoe last CAD system.