布雷森汉姆是如何表示像素网格以推导出他的线条绘制算法的？
我正在寻找关于Bresenham如何构想像素网格的简明资料。因为不同的API对像素网格有不同的实现。如果没有对像素网格的基本理解，就无法理解线条绘制算法和圆形绘制算法的推导。我希望能从黑客们那里获得一些有价值的意见。
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I am seeking for a succinct source regarding how did Bresenham's imagined the pixel grids. Because different APIs have different implementations of pixel grid. Without the fundamental understanding of a pixel grid, it is impossible to understand the derivation of line drawing algorithm and circle drawing algorithm. I hope to get some valuable input from hackers.