浅析基于地理实体的1∶500地形图缩编1∶2000地形图技术要点  

Technical essentials of reduction of 1∶500 downsizing 1∶2000 topographic maps based on geographical entities

作　　者：张振川 李文杰 李文广 汪晓慧 郝立贞 ZHANG Zhenchuan;LI Wenjie;LI Wenguang;WANG Xiaohui;HAO Lizhen(Zhejiang Province land Survey Planning CO.,LTD.,Hangzhou,Zhejiang 310030,China;Zhejiang Academy of Surveying and Mapping,Hangzhou,Zhejiang 311100,China)

机构地区：[1]浙江省国土勘测规划有限公司,浙江杭州310030 [2]浙江省测绘科学技术研究院,浙江杭州311100

出　　处：《测绘标准化》2023年第1期107-111,共5页Standardization of Surveying and Mapping

摘　　要：国家新型基础测绘体系的内容之一是实现基础地理信息数据的联动更新,而地形图缩编技术要点是联动更新的基础。本文基于地理实体,以1∶500地形图缩编成1∶2 000地形图为例,分析总结缩编技术要点,并根据技术要点建立缩编规则库。结果表明,根据缩编技术要点进行缩编得到的1∶2 000地形图,图面清晰、易读。One of the contents of the new national basic surveying and mapping system is to realize the linkage update of basic geographic information data,and the technical essentials of topographic maps reduction is the foundation of linkage update.Based on geographic entities,this paper takes the reduction of 1∶500 topographic map to 1∶2000 topographic maps as an example,analyzes and summarizes the technical essertials of the reduction,and formulates the reduction rules base according to the technical essentials.The results show that the 1∶2000 topographic maps obtained from the reduction technique is clear and easy to read.

关 键 词：地图缩编 技术要点 地理实体 大比例尺 

分 类 号：P285[天文地球—地图制图学与地理信息工程]