cad中根据dat坐标点，生产地面线文件-the cad in point of dat coordinates, production ground line file

ansys建模,通过已知坐标点，由点到线，线到面，面再到体的顺序建立模型-ansys modeled by a known coordinate point by point to the line, the line to the surface, the surface and then to the body in order to model

根据CAD踏面图形提取控制点与权因子，计算踏面坐标点 -According CAD tread pattern extraction control points and weight factor, calculated tread coordinate points