摘要
把第三次全国国土调查(以下简称“三调”)数据转化为有效的地图产品是加强三调成果共享应用的重要途经之一。本文以《广东省第三次全国国土调查图集》为例,研究基于WJ-III地图工作站建立缩编规则知识库,实现图斑自动化缩编的技术方法,并对缩编后的地类数据进行可视化设计。首先分析区域特征和数据情况,然后介绍缩编规则和可视化设计的关键技术,进而分析自动化缩编结果和地图成图效果,最终实现1∶100 000、1∶250 000、1∶500 000和1∶1 000 000系列比例尺的三调图斑自动化缩编和三调专题地图集的编制。研究成果可为利用三调成果数据进行多比例尺专题地图缩编工作提供参考。
Transforming the data into effective maps is one of the important ways to strengthen the application of the third national land survey.Taking The Atlas of The Third National Land Survey in Guangdong Province as an example,this paper studies the key technologies of automatic generalization based on WJ-III Map Workstation,and the visualization design of the third national land survey data.Firstly,it analyzes regional characteristics and data,and then introduces the key technologies and summarizes the result of automatic generalization and mapping.Finally,the automatic generalization of the third national land survey data with 1∶100000,1∶250000,1∶500000 and 1∶1000000 series scales are realized and the atlas has been compiled.The research results can provide reference for multi-scale thematic map generalization with The Third National Land Survey Data.
作者
伍夏怡
WU Xiayi(Guangdong Provincial Cartographic Institute,Guangzhou 510075,China)
出处
《测绘与空间地理信息》
2024年第3期153-155,159,共4页
Geomatics & Spatial Information Technology
