基于ArcGIS软件的小比例尺地形图信息提取方法研究  

Research on Information Extraction Method of Small Scale Topographic Maps Based on ArcGIS Software

作　　者：沈雯 曹佳敏 SHEN Wen;CAO Jiamin(Zhejiang Province Research Institute of Surveying and Mapping Science and Technology,Hangzhou 310000,China)

机构地区：[1]浙江省测绘科学技术研究院,浙江杭州310000

出　　处：《测绘与空间地理信息》2023年第5期213-215,218,221,共5页Geomatics & Spatial Information Technology

摘　　要：地形图是土地利用、规划管理等应用研究的重要基础,不同用户对电子地形图存在不同需求,本研究基于ArcGIS软件的小比例尺地形图信息提取方法,利用Delaunay直接三角剖分方法建立TIN网,通过TIN内插计算问题将TIN转化至规则格网建立小比例尺地形图,利用加权整体最小二乘方法拟合所建立的地形图曲面,提升所建立小比例尺地形图精度,利用ArcGIS软件提取完成曲面拟合的小比例尺地形图的点状地名、点状居民地、道路、水系等信息,满足不同用户应用所需。Topographic map is an important source of application research on land use,planning and management.Different users have different needs for electronic topographic maps.Research on the information extraction method of small-scale topographic map based on ArcGIS software,it uses Delaunay direct triangulation method to establish TIN network,uses TIN interpolation calculation to convert TIN to regular grid to establish small-scale topographic maps,and uses weighted global least squares method to fit the surface of the established topographic map.To improve the accuracy of the established small-scale topographic maps,ArcGIS software is used to extract the point-shaped place names,point-shaped residential areas,roads,water systems and other information of the small-scale topographic maps that has completed the surface fitting to meet the needs of different user applications.

关 键 词：ArcGIS软件 小比例尺 地形图 信息 提取方法 三角剖分方法 

分 类 号：P231[天文地球—摄影测量与遥感]