【作者】 葛奇鹏；

【导师】 任波；

【作者基本信息】 华中科技大学 ， 空间信息科学与技术， 2010， 硕士

【摘要】 计算可视化仿真是新兴起的一种技术,它的主要思想是将计算机科学计算和三维视景仿真相结合以实现优势互补的目的,不仅最大程度的利用了计算机科学计算的精度和可靠性,又给予了观察者最直接最真实的显示效果,还具有很强的交互性和易操作性。但是计算可视化仿真又有其不可避免的问题,众所周知,计算机科学计算如有限元分析力学的结果繁杂、数据量巨大,而视景仿真必须是可交互的、实时的,如何提高可视化显示海量数据的效率,无损或少损地反映计算机科学计算数据场是计算可视化仿真的重中之重。本文以OSG可视化函数库为平台,在win32平台下结合vs03开发了一套较为完整的塔架力学仿真可视化系统,在这个系统利用塔架结构数据以及相应的ANSYS桁架应力计算数据渲染出了一个可交互的塔架仿真图像,可以依靠它进行塔架设计的观察和塔架应力结构的观察,程序主要实现的算法有:基于Flyweight设计模式的塔架结构绘制算法;光照,阴影算法在塔架仿真中的应用;科学计算物理场拾取表现算法以及基于纹理映射的三维仿真算法。这个系统基本实现了三维塔架结构自动生成、应力云图可视化的功能需求,并具有比较强的实用性和很大的扩展潜力,这个技术甚至可以扩展到更普遍的领域,如军事演习仿真、影视业、电子娱乐业等等。更多还原

【Abstract】 Visualization Simulation in Scientific Computing is a new technique, it’s main idea is combine scientific computing of computer with 3D visualization simulation, the technique not only has the well accuracy and reliability of scientific computing of computer but also has very directly and reality display, it’s interaction is very well too. However, Visualization Simulation in Scientific Computing has some inevitably problem, the computing result of scientific computing of computer like finite element method is very complex and huge in data size, but simulation must be interactive and Real-time, the most important in Visualization Simulation in Scientific Computing is increasing efficiency of mass data display, reflect the valuable scientific computing of computer data lossless.The page Developed a power transmission tower design system in window system with vs03 and OSG, the main algorithm of the system are as follow, displaying the tower quickly with Flyweight design pattern, use lighting, shadow, material to enhance display effect, use texture to reflect data of mechanics.This system meet the need of mechanics of tower display, has good practicability and well extensional potential, what’s more, it can extension to wider range like simulation of sham battle, movie, Electronic entertainment and so on.更多还原