基于ArcGIS Engine的地图投影与坐标转换的研究与实现

Research and Implementation on Map Projection and Coordinate Conversion Based on ArcGIS Engine

空间地理数据在使用过程中,不同坐标系统的数据无法同时在同一系统中予以加载,需要对现有数据进行坐标系统定义或进行坐标系统及投影转换,针对不同精度要求,对数据进行相应的地图投影和坐标转换在实际应用中非常重要。文中介绍了坐标转换的基本概念,并利用ArcGIS Engine接口实现了矢量数据和栅格数据坐标转换,并展示了最终实现结果。

Spatial reference defined the geographic coordinate system or projection coordinate system for dataset, data without geographic coordinate system is meaningless in the production and application process, data in different coordinate systems cannot be loaded in a single system in the course of using,existing data need to be defined the coordinate system or coordinate system and projection conversion, for different accuracy requirements, the appropriate data standards for map projection and sitting is very important in practical applications. This paper introduces the basic principles of coordinate transformation, and achieves a vector data and raster data coordinate conversion using ArcGIS Engine interface, and shows the ultimately result,which is the detailed examples in map projection and coordinate conversion using Engine