DLL

地理信息系统，坐标变换，内含注册机。-GeoDLL is a dynamic link library of functions for datum and　 coordinate transformations between coordinates and reference　systems, distance calculations, and geodetic functions that can be called from Windows applications. The DLL enable the　 program developer to perform professional grade coordinates　 transformations:

1.The current and many historical Coordinate and Reference Systems of all States of the European Union　(EU) including the eastern extension from April 2004 and other European Systems.



2.The US- and Canadian State Plane Coordinate Systems (SPCS) on NAD27 and NAD83 and other Coordinate and Reference Systems of the North American Continent.



3.The Coordinate and Reference Systems of the Australian Continent and of other Continents.



5.All world-wide used Coordinate and Reference Systems. User-defined coordinates systems, local reference systems and earth ellipsoids can be definated on base of the earth half axis and 7 parameters Helmert or 3 parameters Molo