| 地形立体景观图生成技术的研究 |
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| 引用本文： | 徐青.地形立体景观图生成技术的研究[J].测绘学院学报,1993(2). |
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| 作者姓名： | 徐青 |
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| 摘 要： | 本文论述了用模拟灰度法绘制地形立体景观图的基本过程。首先用三角形面素来逼近地形表面,然后进行坐标透视变换和消隐处理,再根据选定的光照模型计算出每面素上各点的灰度值,最后采用彩色合成和图形叠加技术绘制出地形的立体景观图。
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| 关 键 词： | 模拟灰度 立体景观图 三角形面素 光照模型 |
The research of producing technique of Stereo Landscape View of the Terrain |
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| Xu Qing.The research of producing technique of Stereo Landscape View of the Terrain[J].Journal of Institute of Surveying and Mapping,1993(2). |
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| Authors: | Xu Qing |
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| Abstract: | This paper describes the basic procedure of producing the stereo landscape view of the terrain with the method of analogous grey. Firstly, the terrain surface is approached by triangle area elements; secondly, perspective transformation of coordinates and processing of eliminating the hidden parts are carried out; third according to the chosen shining model of light, every element's grey value in landscape view is calculated; lastly, using the technique of color synthesis and adding graphic symbols, the stereo landscape has been produced. |
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| Keywords: | Analogous grey Landscape Triangle area elements Model of light |
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