Three algorithms of the general plotting library-grid algorithm for functional curved surfaces, and floating horizon algorithm and scan line buffer algorithm for discrete space points are briefly introduced.

• 本文简要介绍通用绘图程序库实现的三个算法,即函数曲面的网格消隐算法,离散点的浮动水平线算法和离散点的扫描线缓冲区算法。