Implementation of Navigation by Eagle-Eye Map in Different Coordinate System

With rapidly increasing in the electronic equipment applications, the use of electronic map is more and more popular. Eagle-eye map, which is one of the basic functions of Geographic Information System, could rapidly locate and navigate when you are using the map. This paper analyzed the rectangle position in Eagle-eye map in different cases, aiming at the distinction between the coordinate system in the DWG format map and GDI+ graphic system, realized simultaneous display between the main map and the Eagle-eye map, and the location and navigation of Eagle-eye map using event mechanism on C#.net platform. The method in this paper is simple, has general use and provides guidance for GIS Eagle-eye map development. Finally, this paper gives an example of this function with a hospital map.