| 长江口北槽三维地形虚拟表达及其变化分析 |
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| 引用本文： | 董月娥,周云轩,姜晓轶. 长江口北槽三维地形虚拟表达及其变化分析[J]. 计算机工程与应用, 2006, 42(17): 218-220,232 |
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| 作者姓名： | 董月娥 周云轩 姜晓轶 |
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| 作者单位： | 华东师范大学河口海岸学国家重点实验室,上海,200062;华东师范大学河口海岸学国家重点实验室,上海,200062;华东师范大学河口海岸学国家重点实验室,上海,200062 |
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| 摘 要： | 以长江口北槽为研究区域,利用1965年到2003年间12幅长江口数字化海图以及专业地形建模软件MultigenCreator,建立长江口北槽三维地形模型,实现基于虚拟现实建模语言VRML及浏览器插件Cortona的地形虚拟表达。在此基础上,对多年的长江口北槽深泓线进行对比分析,讨论北槽两岸沙岛的变迁过程。
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| 关 键 词： | 长江口北槽 三维地形 虚拟现实建模语言 虚拟表达 |
| 文章编号： | 1002-8331-（2006）17-0218-03 |
| 收稿时间： | 2006-03-01 |
| 修稿时间： | 2006-03-01 |
Virtual Representation of 3D Terrain and Its Change Analysis of the North Passage of the Yangtze Estuary |
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| Dong Yue'e,Zhou Yunxuan,Jiang Xiaoyi. Virtual Representation of 3D Terrain and Its Change Analysis of the North Passage of the Yangtze Estuary[J]. Computer Engineering and Applications, 2006, 42(17): 218-220,232 |
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| Authors: | Dong Yue'e Zhou Yunxuan Jiang Xiaoyi |
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| Affiliation: | State Key Laboratory of Estuarine and Coastal Research,East China Normal University,Shanghai 200062 |
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| Abstract: | Taking the north passage of the Yangtze estuary as a study area,a 3D terrain model of the area is established with data digitized from 12 sea charts from 1965 to 2003 and aided by Multigen Creator,a professional tool for terrain modeling.A virtual representation of the 3D terrain model is achieved with VRML and browser package Cortona.Based on the modeling,spatial variations of the north passage thalweg from 1965 to 2003 are analyzed.And the evolving process of islands in both sides of the passage is discussed thoroughly. |
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| Keywords: | north passage 3D terrain VRML virtual representation |
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