一个小程序，可以实现从平面多边形拉伸操作形成实体的操作。

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.

使用GS实现动态模糊，显卡需要支持dx10以上版本-This sample implements motion blur using the geometry shader to extrude fins from the original mesh.

proe二次开发基础，同步模式下的简单开发。实现建立拉伸特征，打开文件等基本功能-the proe secondary development based on the synchronous mode, simple development. Establish basic functions such as extrude feature, open the file