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.
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.
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.
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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