Killet GeoSoftware Ing.-GbR, geodetic software developer based in North Rhine-Westphalia, Germany, provides a Geodetic Development Kit named GeoDLL with geodetic functions to embed in your own computer programs.
After the Dynamic Link Library has become super fast by recoding to C++, the geodetic functions of the new version 10.14 have been enhanced significantly.
GeoDLL now is able to calculate 3D Coordinate Transformations considering the ellipsoidical heights.
As well calculations with cartesian coordinates are possible now.
GeoDLL contains precise functions of the themes 2D and 3D Coordinate Transformation, geodetic datum shift and Reference System conversion, meridian strip changing, user defined Coordinate and Reference Systems, distance calculation, Digital Elevation Model and map function.
GeoDLL enables the program developer to perform professional grade Coordinate Transformations:
User-defined coordinates systems, local Reference Systems and earth ellipsoids can be defined on base of the earth half axis and seven transformation parameters (Helmert) or three transformation parameters (Molodensky).
Detailed information, a list of all supported Coordinate Systems and geodetic Reference Systems and a linkable GeoDLL test version you can find in the Internet at the address https://www.killetsoft.de/p_gdla_e.htm.