利用VTK进行轮廓线提取，得到一个三维轮廓体，比标注灰度值，用本代码之前，确认系统里已经配置好VTK环境-use VTK for contour extraction, is a three-dimensional contour body than tagging gray value, with the code before Lane has confirmed System Configuration good environment VTK

texgen是基于VTK开发的机织材料的ＣＡＤ系统-texgen is based on VTK woven materials developed by the CAD system