一个Matlab程序，可以将一个PLY文件格式的多边形网格取面转换成一对数组表示的三角形网格曲面-PLY_TO_TRI_MESH:a MATLAB program which reads data from a PLY file describing a polygonal mesh of a 3D surface,and converts it to a pair of arrays describing a triangular mesh or TRI_MESH

reading Ply format file and exract vertex and face matrix for 3D-Objects