通过地图自动缩编利用1：50 0地形图更新1：20 00地形图，减少城市基础地理信息系统的更新负担。
By using 1:500 topographic map updating 1:2000 topographic through generalization of automatic cartography, decrease the burden of UBGIS data revision.
论述了井下开采矿井矿用地形图的更新方法。
This paper discusses the renewable method of mine topographic map of underground mining.
同时还对“3s”技术在地形图快速更新中的综合运用进行了探讨。
At the same time it has also researched on how to apply the "3s" technology to the fast updating of topographic maps synthetically.
最后提出了生产部门进行地形图数据库增量更新的方案。
At last, the author prompts a scheme for surveying and mapping department to update relief map database with incremental mode.
地形图的时实性在煤矿生产中起着重要作用，地形图的更新是矿山测绘人员的一项重要任务。
The prescription of topographic map plays an important role in production of coal mine. The renew of topographic map is an important task for mine surveyors.
通过二次开发，快速实现了地形图的更新与维护，并有利于质量的控制，符合入库要求。
Through the secondary development, the updating and maintenance of topographic maps have been realized. It is favourable for quality controlling and meet the demand of storage of topographic maps.
通过二次开发，快速实现了地形图的更新与维护，并有利于质量的控制，符合入库要求。
Through the secondary development, the updating and maintenance of topographic maps have been realized. It is favourable for quality controlling and meet the demand of storage of topographic maps.
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