·一个绘图程序的源代码.. ·完整的基本图形绘制系.. ·丰富的图形类型（直线.. ·简易二维平面CAD画.. ·计算机图形学中用-a mapping program's source code .. integrity of the basic graphic-rich graphics .. types (linear .. simple 2-D CAD drawing using computer graphics .. DD

一个计算机图形学的开发实习程序,可以实现直线圆,(A computer graphics development internship program that can realize linear circular,)