这是用于rhino的脚本，先选择一个surface，再选择一组曲线，则将这组曲线从世界坐标按所选surface的uv投影到曲面上，同时尽量保持原来的世界Z坐标。（一般选的surface都是平行于xy平面的，这样可以让一组曲线在xy方向上的形状按曲面uv修改）-This is the scr ipt for the rhino, first select a surface, then select a set of curves, then this set of curves selected from the world' s surface by the uv coordinates projected onto the surface, while preserving the original World Z coordinates. (Usually selected surface are parallel to the xy plane, which would allow a set of curves in the xy direction, the shape of the uv by surface modification)