【摘要】 从大地水准面到参考椭球再到地图投影,澄清了不规则的地球体与平面地图上点的对应关系,包括地图投影的概念、分类和不同投影之间的变换,进而以Mapinfo为例,介绍了在GIS中地图投影的设置,为顺利利用GIS进行各种空间分析奠定基础。更多还原

【Abstract】 From the geoid to the reference ellipsoid and to map projection,this paper explains the correspondence relation between the irregular earth and the point on the plane map,including the concept of map projection,classification and transformation from one map projection to another,and taking Mapinfo as an example,introduces the setting up of map projection in GIS,forming the foundation for different kinds of spatial analysis.更多还原