| 引江济太虚拟景观系统关键技术的研究与实现 |
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| 引用本文： | 卞海红,朱跃龙,张新华,徐立中.引江济太虚拟景观系统关键技术的研究与实现[J].河海大学学报(自然科学版),2006,34(6):709-712. |
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| 作者姓名： | 卞海红 朱跃龙 张新华 徐立中 |
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| 作者单位： | 1. 河海大学信息中心,江苏,南京,210098
2. 河海大学计算机及信息工程学院,江苏,南京,210098 |
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| 摘 要： | 介绍了系统场景可视化采用的一些关键技术.开发了引江济太三维虚拟景观原型系统(YJJT3D系统),用OpenGL作为底层图形驱动程序,以VC 6.0为开发工具,利用虚拟现实技术、多媒体技术和三维图形技术,实现了对大规模地形场景的实时动态显示、信息查询以及空间分析,并提出解决超大数据量数字高程模型快速显示的算法,将地物在地形中进行显示.该系统能在PC机上流畅地运行,图形的生成速度和质量较高.
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| 关 键 词： | 三维可视化 地形可视化 数字高程模型 |
| 文章编号： | 1000-1980（2006）06-0709-04 |
| 收稿时间： | 2006-02-20 |
| 修稿时间： | 2006-02-20 |
Crucial techniques for implementation of scene visualization for water diversion from Yangtze River to Taihu Lake |
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| BIAN Hai-hong,ZHU Yao-long,ZHANG Xin-hua,XU Li-zhong.Crucial techniques for implementation of scene visualization for water diversion from Yangtze River to Taihu Lake[J].Journal of Hohai University (Natural Sciences ),2006,34(6):709-712. |
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| Authors: | BIAN Hai-hong ZHU Yao-long ZHANG Xin-hua XU Li-zhong |
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| Affiliation: | 1. lnformaiton Center, Hohai University, Nanjing 210098, China ; 2.College of Computer and Information Engineering, Hohai University, Nanjing 210098, China |
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| Abstract: | An introduction was given to some crucial techniques for scene visualization.With OpenGL taken as driving program for bottom graph treatment and VC 6.0 taken as development tool,a 3-D scene visualization system for water diversion from Yangtze River to Taihu Lake(YJJT3D) was developed by use of visual reality technique,multimedia technique,and 3-D graphic technique;thus the realtime dynamic display,information inquiry,and spatial analysis of large-scale terrain were realized.Moreover,the algorithm for fast display of DEM with a great deal of data was proposed,so that the geographic characteristics can be displayed in terrain.The system can be applied in PC with high speed and quality for graphic generation. |
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| Keywords: | 3-D visualization terrain visualization DEM |
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