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The program TRANSDAT and the function libraries GeoDLL and BetaDLL supports NTv2 standard coordinate transformations with high accuracy.
Amongst others the NTv2 grid file BeTA2007 can be used for transformations within Germany with results in sub-meter accuracy.
The grid file is provided by the "Arbeitsgemeinschaft der Vermessungsverwaltungen der Länder der Bundesrepublik Deutschland" (ADV), along with a documentation and a set of test data.
The test data contain 31 spaced points on the territory of the Federal Republic of Germany in different variations with coordinates in both reference systems DHDN90 and ETRS89.
The test data are provided by the ADV for the verification of the computational accuracy of transformation solutions with external software.
The results do not make a statement about the accuracy of the transformation system BeTA2007.
Due to the system with BeTA2007 a nationwide transformation accuracy in sub-meter range can be realized.
For allocated areas even an accuracy in the decimeter and centimeter range can be achieved.
Comparative calculations with the test data of the ADV, done by the engineering office C. Killet Software Ing.-GbR, attest to the software TRANSDAT, GeoDLL and BetaDLL a very good self-consistency.
Here are the results:
The good result is not surprising, since for the calculations strict formulas are used only.
The coordinate transformations are performed according to publications of Maarten Hooijberg (1997 and 2008).
The NTv2 date change is made following publications of D. R. Junkins and S. A. Farley (1995).
The comparative calculations were done with the program TRANSDAT indeed, but they are also valid for the function libraries GeoDLL and BetaDLL.
These are used by the program TRANSDAT for the necessary geodetic calculations.
The libraries allow users to include coordinate transformations with high accuracy in their own programs.
You can download the test protocol and tables with the corresponding calculations by entering the URL http://www.killetsoft.de/zip/ntv2/bkg_ks.zip in your Internet browser.
In order that you always are well informed about our company, we write actual news, current information and special offers here into this column.
NTv2 calculations
KilletSoft provides for their produkts GEoDLL and TRANSDAT encrypted NTv2 files of the Federal States Hesse, Saxony and Thuringia for highly accurate calculations.
Read more ...
Administrative Reform in Mecklenburg-Western Pomerania
The administrative data bases of the Federal Republic of Germany "Geodata Germany" have been updated to the reference date of September 15th, 2011!
The reason therfor are the essential modifications due to the Administrative Reform in the Federal State Mecklenburg-Western Pomerania.
Read the Press Release ...
Win32 and X64
The Dynamic Linc Libraies GeoDLL and BetaDLL supports 32bit and 64bit architecture now.
The DLLs are written in C++ and were developed with Microsoft Visual Studio 2010.
Are the reference systems WGS84 and ETRS89 really identical?
Inclusion of the continental drift for the transforming of GPS coordinates with the software products TRANSDAT and GeoDLL.
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Translators wanted!
The latest versions of the programs TRANSDAT and SEVENPAR support language files for the programs interface.
Since the language dependent texts are managed in external files, new languages can be added at any time by creating new language files.
Every user of the program now can compile language files by himself.
WINDOWS© 7 compatible
Our software has received the certificate "WINDOWS© 7 compatible".
So it complies with the compatibility standards of the Microsoft operating systems WINDOWS© 7.
INSPIRE©
GeoDLL and TRANSDAT supports Europe-wide the ETRS89 coordinate systems proposed by INSPIRE©.
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