水位涨落演示动画的制作方法

The Method of Making Animation of Water Level's Fluctuating

水位涨落演示动画制作难度较大，主要的难点在于河流断面的河床形状不规则，没有规律可以遵循，无法用数学函数描述。该文介绍通过自制断面示意图透明ActiveX控件实现动画制作的方法。

It's very difficult for us to make the animation of water level's fluctuating. The main nodus focuses on how to describe the irregular form of the riverbed of the river's section mathematically. This paper introduces a method which has realized making this kind of animation by compiled transparent ActiveX control of river section's digital bitmap.