摘要
针对现有地图投影变换系统大都是内含于特定软件中的状况 ,本文提出顺应GIS向组件GIS和开放GIS发展的潮流 ,设计并实现了一个基于COM组件技术的规范通用的开放式地图投影变换组件。参照OpenGIS协会发布的有关地图投影变换的接口规范 ,设计了基于COM的开放式地图投影变换组件的接口、组件对象及总体构架 ;详细分析了地图投影变换的理论基础及方法 ,并选择适合计算机高效实现的反解变换法 ,实现了该地图投影变换组件。
Considering the existing map projection systems are included in particular softwares,thes paper proposes we should adapt to the develpoment directions lf GIS,and designs and implements a canonical,popular and open map projection trsformation component based on COM.The interfaces,classes and framework of map projection transformation component based on COM is designed firstly, according to the specification released by 0GC(0penGIS Consortium).Then the method and theoretical foundation of map projection transformation is analyzed, and the inverse transformation method to implement the component is selected.
出处
《测绘科学》
CAS
CSCD
2003年第4期62-65,共4页
Science of Surveying and Mapping
