From Newsgroup: comp.lang.c
This note is intended for developers who write programs with geodetic functionality, such as coordinate transformations, datum shifts or
distance calculations. You can easily include ready-to-use geodetic
functions from the GeoDLL Geodetic Development Kit for this purpose.
This Dynamic Link Library is compatible with almost all modern
programming languages, including C, C++, C#, Basic, Delphi, Pascal,
Java, Fortran, xSharp and Python, as well as MS Office. Examples and interfaces are available for many programming languages.
GeoDLL suports worldwide 2D and 3D geodetic coordinate transformations
and datum shifts with NTv2 files or Helmert parameters with the highest possible accuracy. It also offers: HARN, INSPIRE, EPSG, elevation models (DEM), distance and time zone calculations, meridian convergence and
much more.
GeoDLL is available as a 32-bit and 64-bit DLL, as well as in C/C++
source code format. Thanks to consistent development in C/C++ with
Microsoft Visual Studio, the DLL is very fast, secure and compact. All functions are prepared for multithreading and server processing.
Free trial version for download:
https://www.killetsoft.de/p_gdla_e.htm
Use of the worldwide NTv2 collection:
https://www.killetsoft.de/t_ntv2_e.htm
Quality of coordinate transformations:
https://www.killetsoft.de/t_1705_e.htm
Fred (KilletSoft)
Email:
https://www.killetsoft.de/email.htm?lan=e&btr=GeoDLL
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