实现了三维变换的一些基本功能：

以直线为轴进行旋转

以一点为基点放缩

对直线L作镜向

对平面作镜向

得到三维结构的投影

-achieve a three-dimensional transform some basic functions : a straight line to rotate around the axle of the base point of the linear scaling L for planar mirror to the right to be a mirror for the three-dimensional structure of the projector.