GIS与传统地图投影中的空间概念问题

GIS and Problems of Space Conception in Traditional Map Projection

探讨了地球信息产品的空间概念,指出现代地理信息系统(GIS)仍旧采用将局部的地球椭球面投影到二维的地图空间上。而现代的地球信息数字产品采用三维空间阵列的系统,该系统是以地球表面和海拔作为定位参考的。两者的空间数学基础是不相同的。

This paper discusses the space conception of geographic information products, and points out that current GIS systems still adopt the approach of projecting local ellipsoid earth surface onto 2D map space, while contemporary digital geographic information products utiloze 3D space coordinate system with earth surface and elevation as positioning references. The mathematical basis of these two approaches are different.