• GeoDLL - Geodetic function collection
•  Brief Description of the Current Version
•  Development Tool Description
•  Specification Function coordtrans3d() as example
•  List of coordinate and reference systems
•  NTv2 Support with GeoDLL
•  Useage of Digital Elevation Models with GeoDLL
•  Screenshots
•  Download GeoDLL test version
•  Prices GeoDLL full version
•  Order GeoDLL full version

GeoDLL is a geodetic function library with world wide 2D and 3D coordinate transformation, datum shift, Helmert and Molodensky parameters, NTv2, INSPIRE, BeTA2007, digital elevation model (DEM), distance calculation and much more with highest accuracy and is available as 32Bit and 64Bit DLL and as C++ source code.

GeoDLL - Version 12.23 - Latest update on 9 January 2012
The latest important changes

1. New functions for NTv2 handling and decrypted NTv2 files.
2. New NTv2 grids for many countries.
3. New systems of Sweden and Australia.
4. Supports 32bit and 64bit architecture.
5. Supports elevation models CGIAR V2 to V4.
6. Messages can be written to the EventLog.
7. Supports INSPIRE, NTv2, BeTA2007.

Brief description

GeoDLL supports the development of geodetic software on various platforms by providing geodetic functions. GeoDLL contains precise calculations on the themes 2D and 3D coordinate transformation, geodetic datum shift and reference system converting, meridian strip changing, user defined coordinate and reference systems, distance calculations, Digital Elevation Model, NTv2 handling and BeTA2007 support, Direct / Inverse solutions, map function and geodetic converting functions.

The most important application of GeoDLL is to include professional coordinate transformations in own programs. These coordinate and reference systems are supported:

1. The current and many historical coordinate and reference systems of all countries of the European Union (EU) including the eastern extensions and the systems of the European non-EU countries.
2. The European ETRS89 systems forced by INSPIRE with respect to the continental drift.
3. The US and Canadian State Plane Coordinate Systems (SPCS) and other systems of the North American continent.
4. Many coordinate and reference systems of the countries of all continents and the world-wide used coordinate and reference systems.
5. World-wide NTv2 grid file supported coordinate transformations.
6. The coordinate and reference systems of the old and new German Federal States, the 40 Prussian Soldner Land Registers, the German 'Lagestatus', special reference systems of the German Federal States and BeTA2007.
7. User defined coordinate systems, reference systems and earth ellipsoids.

GeoDLL comes with extensive documentation and is supplied as DLL file or as C++ source code for 32bit and 64bit architectures. The DLL works with most programming languages and it can be used with Microsoft Office programs. The DLL is written in C++ and was developed with Microsoft Visual Studio 2010. Thus very fast performance, compact code and high stability are assured. The functions of GeoDLL are prepared for multithreading.

The operating system WINDOWS provides software developers the opportunity to use prepared functions of third-parties in their own software applications. Thus, geodetic functions of GeoDLL can be linked to programs written in C, C++, C#, Java, Delphi, MS-Access, Visual Basic, CA-Visual Objects or which are written in other programming languages. To support the GeoDLL, examples and interfaces with source code for many commonly used programming languages are provided.