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城市地理, ISSN 1674-2508, 2017, Issue 8X, pp. 74 - 75
依据《国家基本比例尺地图图式第1部分:1:500 1:1000 1:2000地形图图式》(以下简称图式)GB/T20257.1-2007的要求,现有资料为1:500比例尺基础地理信息数据,需要逐层缩编到1:2000。本文重点介绍了基础地理数据缩编整理的主要流程及操作要求,包括分层整理、拓扑化处理以及图幅接边。 
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