CGAL是一个开源的算法库，所以你可以从CGAL的官方网站 http://www.cgal.org/ 获得一份CGAL的源码包，以及详细的文档，大概有2000页左右。-CGAL is an open source library of algorithms, so you can from the official website of http://www.cgal.org/ CGAL CGAL be a source package, as well as detailed document

本程序介绍了D3D中的的球面到2为平面的转换关系的算法的详细介绍，-This procedure describes the D3D in the sphere to the plane of the transformation between 2 a detailed descr iption of the algorithm,