提供了一个openGL画图类，实现了画图和转换视角的功能，对3D画图极其有用-provide a openGL drawing and realizes the drawing and conversion perspective of the function, D drawing of three extremely useful

提供了一个openGL画图类，实现了画图和转换视角的功能，对3D画图极其有用-provide a openGL drawing and realizes the drawing and conversion perspective of the function, D drawing of three extremely useful

这是一个关于OpenGL在MFC下使用的OpenGLDCr工具库的程序，利用它你可以直接操作OpenGL的API函数-This is a dynamic link library, its role is to describe the basic geometry of the important concepts, such as three-dimensional point, three-dimensional toleranc