GIS数据集成中的北京地方坐标系变换研究  

The Research on Coordinates Conversion of Beijing Local System in GIS Data Integration

作　　者：李炜民[1] 谢军飞[2] 李延明[2] 

机构地区：[1]北京师范大学 [2]北京市园林科学研究所,北京100102

出　　处：《城市勘测》2007年第5期51-52,55,共3页Urban Geotechnical Investigation & Surveying

基　　金：北京市园林局重大科技项目:"北京市东灵山;百花山景区草甸及景观变化评价与监测"资助

摘　　要：为了统一不同投影的多源资料,根据通用坐标系及地方坐标系的内在联系,结合控制点坐标位置调查,运用数值仿射变换的方法,对相关参数进行了求取,并以M apBasic为平台,选择东灵山景区作为试验区域,进行了北京地方坐标系变换程序的开发和验证。结果显示,具有北京地方坐标系的数字地形图能快速地向通用坐标系进行转换,其相关要素与具有通用坐标系的TM遥感影像中的特征地物得到了很好的吻合。相关思路和方法可为不同坐标系之间快速变换提供参考。In order to unite different map projection data, based on relation between Beijing local coordinates system and normal coordinates system, combine coordinate position survey about reference points and apply for numerical affine transformation method, correlative parameters were obtained, at the same time, the program on coordinates conversion was be develop and validate with MapBasi software. The result shows that the program can quickly transform numeric topography map of Beijing local coordinates system to normal coordinates, and correlative elements consistent with special objects of TM remote sense image of normal coordinates, Which provide the methods reference of quickly coordinates conversion between different coordinates.

关 键 词：北京地方坐标系 仿射变换 MAPBASIC 

分 类 号：P282.2[天文地球—地图制图学与地理信息工程]