三维图形的透视投影二位图形的视窗变换以及图形的旋转、放缩、平移等一系列算法-Perspective projection of three-dimensional graphics of the two graphics window graphics transform and rotate, zoom, pan, such as a series of algorithms

本实验利用透视原理，实现了简单的投影，大家还可以添加交互技术-The principle of the experimental use of perspective, the realization of a simple projection, we can also add interactive technology

说明，从真实世界透过电脑屏幕，看游戏场景，感觉和真实世界看3D物体的角度几乎一样。(Generalized Perspective Projection)