从制作技术、数据检查、质量管理等方面分析了数字高程模型数据库的建设。
This paper analyzes on the construction of DEM database from the making technique, data checking and quality control.
说明了实现人工阴影和人工立体观察像对的方法的基本原理及其在处理数字高程模型数据上的应用；
The Principles of the techniques about shaded relief and synthetic stereo-pair viewing of images as well as their application in digital elevation model data processing are described.
例如，数字高程模型(Digital Elevation Model, DEM)数据点在网格图形中均匀排列。
For example, Digital Elevation Model (DEM) data points are equally arranged in a grid pattern.
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