用短线截交法绘制隐式曲线

Drawing Implicit Curves by Short Segments Crossing

本文提出了一种绘制隐式曲线的方法,用一系列短线跟踪隐式曲线,使短线与隐式曲线相交,用二分法求出交点,绘制出隐式曲线。该方法具有简单、可靠、快速等特点,求出的离散点之间间隔比较均匀,对一些后续处理非常有利,此外本方法还能自动地调整步长,适应某些曲线的局部细小特征。

This paper presents the method for drawing implicit gives that uses many short segments to trace, cross and draw implicit curves by working out crossing points through division. It is simple, reliable and rapid. Discrete points thus obtained are of uniform distance, which is favorable for some subsequent processing. In addition, the method can automatically adjust step-length and adapt to local details on some curves.