| 黄土高原地貌形态分形算法三维表达应用 |
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| 引用本文： | 纪翠玲,池天河,齐清文.黄土高原地貌形态分形算法三维表达应用[J].地球信息科学,2005,7(4):127-130,143. |
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| 作者姓名： | 纪翠玲 池天河 齐清文 |
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| 作者单位： | 中国科学院遥感应用研究所,北京,100101;中国科学院研究生院,北京,100039;中国科学院遥感应用研究所,北京,100101;中国科学院地理科学与资源研究所,北京,100101 |
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| 基金项目： | 中国科学院知识创新工程项目;国家高技术研究发展计划(863计划) |
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| 摘 要： | 黄土高原是我国乃至全世界的一个十分独特的地貌单元,对其复杂多样的地貌形态的研究和可视化表达一直备受关注。本文概述了地形地貌的传统表达方法,之后介绍了曲面建模、DEM模型和分形技术等常用的三维地形地貌建模方法,重点介绍了分形技术。并使用分形地形建模算法中最常用的随机中点位移法模拟生成了几类主要的黄土高原地貌形态．取得了较好的效果。
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| 关 键 词： | 黄土高原地貌形态 三维可视化 分形算法 |
| 收稿时间： | 2005-04-29 |
| 修稿时间： | 2005-06-20 |
The Application of Fractal Technique to 3D Visualization of Landforms of the Loess Plateau |
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| JI Cuiling,CHI Tianhe,QI Qingwen.The Application of Fractal Technique to 3D Visualization of Landforms of the Loess Plateau[J].Geo-information Science,2005,7(4):127-130,143. |
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| Authors: | JI Cuiling CHI Tianhe QI Qingwen |
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| Institution: | 1. Institute of Remote Sensing Applications, CAS, Beijing 100101, China;
2. Institute of Geographic Sciences and Natural Resources Research, CAS Beijing 100101, China;
3. Graduate School of the Chinese Academy of Sciences, Beijing 100039, China |
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| Abstract: | Loess Plateau is a kind of peculiar relief unit in China and in the world, attracting strong attentions for its various and complex morphologies. This paper firstly presents several traditional methods to express landforms, and then introduces three main methods to model 3D landforms, namely, the surface modeling, the DEM modeling and the fractal technique, the latter is especially described in detail. Finally, some kinds of landform morphologies of the Loess Plateau are generated with the most commonly used two dimensional midpoint displacement algorithms of fractal technique. The results show that we can acquire a satisfying visual effect. |
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| Keywords: | landforms of Loess Plateau 3D visualization fractal algorithm |
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