直线扫描转换“距离比”算法

Using Distance-comparison Arithmetic to Draw a Beeline

直线的扫描转换就是在数字设备上绘制一条直线。“距离比”算法的基本原理是相对于当前像素,下一个像素由相邻的三个像素到直线的距离最短来确定。

s: The scan transform of a beeline is to draw a beeline on the figure equipment. The rationale of the 'distance-comparison' arithmetic is to confirm the next pixel by current pixel from the shortest linear distance between the border upon the 3 pixels and the beeline.