重新查看了下tg手册,估计curd命令对你还是有帮助的,使用curd 3d_curve_# twsurf surface_1 surface_2 x1 y1 z1 ... xn yn zn ; trans ;
Use twsurf to create/append the curve at the intersection of two surfaces. Initial points arerequired to determine the endpoints and some intermediate points for surfaces with large curvature (greater than 120 degrees). These points need only be approximate.