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The Research on Coordinates Conversion of Beijing Local System in GIS Data Integration
Author(s): 
Pages: 51-52,55
Year: Issue:  5
Journal: URBAN GEOTECHNICAL INVESTIGATION & SURVEYING

Keyword:  北京地方坐标系仿射变换MapBasic;
Abstract: 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MapBasic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.
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