地籍图中线状要素自动综合研究  

Automatic Synthesis Research on Linear Elements in Cadastral Map

作　　者：杨曦承 YANG Xicheng(Hubei Institute of Surveying and Mapping,Wuhan,Hubei Province,430074 China)

机构地区：[1]湖北省测绘工程院,湖北武汉430074

出　　处：《科技创新导报》2020年第26期31-33,共3页Science and Technology Innovation Herald

摘　　要：由于地籍图数据量和应用范围的不同,具有多个不同比例尺成图形式。本文提出了一种基于多比例尺地图数据综合线要素的方法,来满足此类图中道路等线状要素连续综合的要求,此方法在不同比例尺的线性要素上标识共同的点,将大型道路等要素划分为多个线段,对每个线段的统一阈值采用DP算法,获得结果最终综合。结果表明,该方法可以获得更接近真实现状的线要素结果。Due to the difference of cadastral map data and application scope,there are many different scale mapping forms.In this paper,a method of synthesizing line elements based on multi-scale map data is proposed to meet the requirements of continuous synthesis of linear elements such as roads in this kind of map.This method marks common points on linear elements of different scales,divides large-scale road and other elements into multiple line segments,and adopts DP algorithm for the unif ied threshold of each line segment to obtain the f inal synthesis.The results show that the method can get the line element results closer to the real situation.

关 键 词：地籍图 线要素 DP算法 不同比例尺 地图综合 

分 类 号：P208[天文地球—地图制图学与地理信息工程]