数字栅格地图
- 网络drg;Digital Raster Graphic;Digital Raster Graphic,DRG
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4D产品指的是数字栅格地图(DRG),数字线划地图(DLG),数字高程模型(DEM)和数字正射影像图(DOM)四种数字测绘产品。
4D presents Digital Raster Graphic , Digital Line Graphic , Digital Elevation Model and Digital Orthophoto Map .
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数字栅格地图的制作
The Making of Digital Raster Graphic
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数字栅格地图(DRG)是地形图数字化4D产品之一,其生产与质量控制是构建地形图数据库的基础。
DRG is one of the4D products of digital maps , whose production and quality control is the foundation of topographic database .
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高精度数字栅格地图的制作方法
Production technique of digital raster graphy
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如何从数字线划图制作数字栅格地图
How to do Digital Raster Graphic from Digital Line Graphic
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一种利用数字线划图快速生产数字栅格地图的方法
A Way of Fast Production of Digital Raster Graphics Based on Digital Line Graph
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以数字正射影像图、数字高程模型、数字栅格地图、数字线划地图为代表的4D产品是测绘技术发展到当今历史阶段的产物。
The 4D productions is the historic result of the developing of the surveying technical , which are digital orthophoto map , digital elevation model , digital raster map and digital line map .