Straight-line algorithm to generate the DDA, Bbresenham, point, circle generation algorithm has bresenham such as the system also includes a straight, round, oval to generate two-dimensional graphics.

• 详细说明： 直线、圆、椭圆二维图形的生成。直线的生成算法有DDA、Bbresenham、point,圆的生成算法有bresenham等 此系统还包含直线、圆、椭圆二维图形的生成。