在vc++上开发的图形学学习程序，二维图元的变换，包括旋转、缩放、平移等操作-In vc++ graphics on the development of the learning process, two-dimensional pixel transformation, including rotation, zoom, pan and other operations

用VC开发的cad系统，包括放大、缩小、平移等操作，绘制的基本对象包括线、多边形、圆、椭圆、三角形等。 -Developed using VC cad system, including zoom, pan and other operations, the basic object drawing including line, polygon, circle, ellipse, triangle and so on.