... 地形图；地形图更新；调绘 [gap=4016]Keywords：Remote sensing image, 1:2000 topographic map, revision of Topographic map,Annotation ...
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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.
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