学计算机图形学所画的图形，有画线（DDA，中点，Bresenham），画圆（中点和Bresenham），填充（扫描线和种子），裁剪，Bezier曲线，动画，三维形体。-By painting computer graphics school graphics, a painted line (DDA, the mid-point, Bresenham), Circle (mid-point and Bresenham), filling (scan line and seeds), cut, B