扫描二维或三维区域的交叉部分，通过三维曲线，得到交叉部分的曲面区域-Sweeps out a 2D cross section (a circle, square, whatever, doesn t even have to be a closed path) through a 3D curve, and returns the generated surface as [X,Y,Z] for use with SURF.

This submission contains a function that computes face normal data for the VertexNormals property of the surface that fixes the lighting (facenorm.m) as well as a workaround function that you can just use in place of surf (surfo.m). Only use th