基于自由曲面与迭代函数系统结合的景物模拟  

Scenery Simulation Based on the Iteration Function System and the Free Surface Modeling

作　　者：韩云萍[1] 张燕[1] 郭来德[1] 

机构地区：[1]辽宁石油化工大学计算机与通信工程学院,辽宁抚顺113001

出　　处：《石油化工高等学校学报》2007年第2期80-83,共4页Journal of Petrochemical Universities

基　　金：辽宁省自然科学基金资助项目(20022161)

摘　　要：分形理论适合于解决不规则形态物体的模拟问题,而造型技术适合于规则形态物体的建模。分形理论中的迭代函数系统(IFS)和自由曲面造型技术相结合可以逼真地模拟自然景物。将迭代函数系统和自由曲面造型技术应用于计算机辅助设计(CAD)中,应用CAD与VC++的接口模块ObjectARX来研究自然景物的模拟算法。利用迭代函数系统模拟三维分形植物的算法,采用自由曲面(B样条曲面)技术绘制的山坡。给出了模拟种植果树的山坡的综合实例,结果表明模拟效果自然、逼真。The fractal theory is adapted to resolve the simulation of irregular-shaped objects, however, the modeling technology is adapted to the modehng of regular- shaped objects. It can simulate the nature scenery to the life by combining the iteration {unction system（1FS）of fractal theory with the ftee surface modeling technology. With the application of iteration function system and the free surface modeling technology to computer aided design （CAD） environment and used the interface modeling Object ARX of CAD and Visual C＋＋ to study the simulative algorithm of natural scenery. With the use of iteration function system to simulate the algorithms of 3D fractal plants, h applied the free surface （B-spline surface） to simulate a hillside. The practical application of a hillside and plants with fruit was given, it indicated that the simulative effect was natural and living.

关 键 词：分形 迭代函数系统 景物模拟 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]