云层运动的线性仿真  

Linear Simulation of Cloud Movement

作　　者：李霖森[1] 董天罡[1] 

机构地区：[1]四川大学图像图形研究所,四川成都610064

出　　处：《计算机技术与发展》2009年第2期130-132,136,共4页Computer Technology and Development

基　　金：国家863计划资助项目(2007AA01Z328)

摘　　要：文中对空中云层的模型进行了充分的分析,运用马赛克算法将云模型结构粒子化。提出了一种基于线性插值原理的算法,将空中对云层运动产生影响的风层密集化,模拟了线性化以后各风层的风速和风向对云模型粒子运动方式的影响。在实时环境下,将粒子整合,投影到二维平面坐标系中,较为真实地反映了云的形状和运动方式的改变。该仿真算法运行效率高,仿真效果好。实践证明将该模拟过程应用于相关大型模拟仿真系统有着很好的效果。Fully analyzes the cloud model in the sky. Use mosaic arithmetic to split cloud model into particle. Presented a method based on linear interpolation theory to enrich the levels of wind which affected the movement of cloud. Simulated the wind speed and direction of every level which has influence to cloud particle. Under real time circurnstance, integrate the cloud particle and projected them onto pla- nar, effective reflected the verieties of the cloud＇s form and its movement. This arithmetic was implemented with great efficiency and outstanding simulation result. The experimental results show that the process of this simulation method has excellent effect on relative simulation system.

关 键 词：线性插值 云模型 马赛克算法 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]