本文主要对大规模地形数据(基于规则格网数字高程模型)的组织与可视化进行研究。

In this paper, study on organization and visualization of the massive terrain dataset mainly on Regular Square Grid data format are discussed.

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利用MAPGIS实现地形图数字化是获取空间地理信息数据的主要手段之一，而图形数字化过程中会产生各种类型的误差。

To implement topographic map digitalization by means of MAPGIS is one of main means of getting spatial geographic information data, and that digitalization could bring out diversified sorts of errors.

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数字地形模型是空间地形数据集合的统称，是具有空间位置特征和地形属性特征的数字描述。

Digital Terrain Model is a general designation of space topographical data set, and it is the digital description with the figure of space position and topographical attributive character.

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