STL模型的立体显示及其多屏拼接  

Stereo and Multi-screen Visualization of STL Models

作　　者：郎兴华 郭阳[1] 林亨[1] 张伟[1] 

机构地区：[1]清华大学工业工程系,北京100084

出　　处：《系统仿真学报》2004年第4期740-744,共5页Journal of System Simulation

基　　金：国家自然科学基金资助项目(50205014)

摘　　要：介绍了基于微机的多通道STL模型交互式立体显示系统。首先由程序提取STL文件三角形面片以及向量坐标信息,进行数据冗余处理和顶点向量的光滑处理,并通过OpenGL生成可视化的STL三维实体模型。利用偏振光叠加的方法实现立体显示功能,提出了以网络同步功能为基础的多通道多屏拼接方案,开发了基于SpaceBall的交互功能,实现对STL模型的位置及姿态进行控制。作为低成本的虚拟现实系统,该系统方案可应用于多种领域。A PC-based multi-channel STL model display system is introduced. Firstly, the coordination information of triangle facets and their vectors in STL model file is extracted. The vertex coordinate and vector data are then processed to solve the redundancy problem of STL model and to make the model look smooth. Stereo display of the processed model is achieved through programming with OpenGL functions in software and realized through a polarized dual-projector system. Multi-channel display is based on LAN network synchronization. With Spaceball adopted in the system, natural manipulation of STL model for both position and orientation is realized. As a low-cost virtual reality system, the proposed method will possibly be applied in various research and development fields.

关 键 词：STL模型 立体显示 多屏拼接 虚拟现实 可视化 人机交互 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]