运动云彩的模拟算法

天气现象模拟是实现气象信息可视化的重要组成部分,而云彩的模拟是实现天气现象模拟的关键。文章给出了3个简捷有效的生成静止云彩和动态云彩的算法,改进了目前常用的模拟算法。用循环计算取代递归计算生成静止云彩,提高了运行速度;不重复运动云彩的生成算法可得到任意长度的云图;云彩平滑变形算法改变了云彩结构,使得云彩的变化连续平稳,为实现气象信息的可视化提供了一个很好的参考。

Simulating Algorithm of Moving Clouds

The simulation of weather phenomenon is important to the visualization of weather information.The cloud simulation is a key to realize the simulation of weather phenomenon.Three effective algorithms for generating still clouds and moving clouds are presented,which have greatly improved the currently used simulation approaches.The recursive computation algorithm is used instead of the circulatory computation for making still clouds,which improves the running speed.The arbitrary-length clouds can be obtained by the non-repetition cloud generation algorithm.The cloud smooth algorithm improves the structure of clouds and makes the movement of clouds continual and stable.The algorithms provide a good reference for weather information visualization.