| 一种新的基于矢量地图数据的地表纹理制作 |
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| 引用本文： | 莫凡.一种新的基于矢量地图数据的地表纹理制作[J].测绘学院学报,2002,19(1):59-61. |
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| 作者姓名： | 莫凡 |
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| 作者单位： | 信息工程大学测绘学院 河南郑州450052 |
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| 摘 要： | 主要阐述了基于矢量地图数据生成具有真实感3维地景纹理的思路和方法，详细论述了在Mapviewer和Photoshop环境下，地形背景纹理的制作，植被纹理的制作，水系纹理的制作以及其它要素纹理制作的方法，并给出了具体的实例。
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| 关 键 词： | 虚拟现实 数据地形模型 地表纹理 纹理基元 纹理分析 矢量地理数据 |
The Facture of Surface Texture Based on the Map Data |
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| MO Fan.The Facture of Surface Texture Based on the Map Data[J].Journal of Institute of Surveying and Mapping,2002,19(1):59-61. |
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| Authors: | MO Fan |
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| Abstract: | In the practice of using the technology of virtual reality to carry out the terrain environment simulation, the effect of simulation lies in the detail of DEM and verisimilitude of the texture. But the more detail of the DEM, the more facets in the model and the more data to participate in the real time interaction and calculation. So the speed of the terrain's real time display will be slowed down. An effective way to solve the problem is to simplify the DEM and to use the realistic surface texture to describe the detail of the terrain and to distinguish the geographic elements. So the preparation of the surface texture plays a pivotal role in setting virtual terrain. The surface texture can be obtained either by directly using the orthograph of remote sensing (or space photography) or by using the map. This paper mostly expatiates on the ideal and the facture of the realistic surface texture which based on the map data. |
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| Keywords: | virtual reality digital terrain model surface texture texture element texture analysis |
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