Abstract:

According to the character of 3-D body surface, the method for calculating discrete Gauss curvature is used to get Gauss curvature of different nodes from basic body surface, whose gridding is affected by using the finite element technique. Take 0.005 as limited value to divide the whole surface into developed and undeveloped one. Based on ant-colony algorithm, a new algorithm is designed according to the distributing character of nodes in the surface. In the new method，the selected nodes collection Q and tabu are adjusted dynamically and the percentage of every area nodes accounts for is taken as evaluation index to end the circling for every ant. Finally the optimum route is got and the basic body surface is divided into developed and undeveloped one. The result is with distributing rule of body surface.