实现了基于地形图扫描数字化的航摄规划设计的基本功能。

The basic functions of the flight plan of aerial photography based on scanned topographic map are achieved.

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地形图扫描数字化为GIS数据源的一种重要获取手段，已经成为地图数字化的主流。

The topographic map scanning digitization is an important acquisition method for GIS data, which has become the mainstream of the map digitization.

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从扫描数字化的基本原理及实施过程出发，分析了基于大比例尺地形图的扫描数字化的误差来源，着重讨论了影响扫描数字化数据结果精度的主要原因及采取的措施。

By analysing error resulting from the process of terrain map by digital scanning, we studied the precision problem in this process and made this process much more reliable.

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