From Newsgroup: comp.lang.misc

Hello,

here I send a note for developers who write programs with geodetic functionality such as coordinate transformations, datum shifts or
distance calculations. For this you can easily include ready for use
geodetic functions from my Geodetic Development Kit GeoDLL. The Dynamic
Link Library can be used with almost all modern programming languages
like C, C++, C#, Basic, Delphi, Pascal, Java, Fortran, xSharp, Phyton, MS-Office and so on. Examples and interfaces are available for many programming languages.

GeoDLL is a professional Geodetic Development Kit or Geodetic Function
Library for worldwide 2D and 3D coordinate transformations and datum
shifts with highest accuracy. Also: Helmert and Molodensky parameters,
NTv2, HARN, INSPIRE, EPSG, elevation model (DEM), distance and time zone calculation, meridian convergence and much more. GeoDLL is available as
32bit and 64bit DLL and as C / C++ source code.

The DLL is very fast, secure and compact thanks to the consistent
development in C / C++ with Microsoft Visual Studio. The geodetic
functions are available in 32bit and 64bit architecture. All functions
are prepared for multithreading and server operating.

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

Kind regards, Fred

Email: https://www.killetsoft.de/email.htm?lan=e&btr=GeoDLL
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From Newsgroup: comp.lang.misc

On Sun, 9 Nov 2025 14:20:09 +0100, Fred Killet wrote:

For this you can easily include ready for use geodetic functions
from my Geodetic Development Kit GeoDLL.

Is this a Windows thing?
--- Synchronet 3.21a-Linux NewsLink 1.2

From Newsgroup: comp.lang.misc

Yes, it is a WINDOWS DLL for 32 Bit and 64 Bit. But we sell also the
source. So GeoDLL can compiled for other platforms.
--- Synchronet 3.21a-Linux NewsLink 1.2

From Newsgroup: comp.lang.misc

On Tue, 11 Nov 2025 09:46:53 +0100, Fred Killet wrote:

Yes, it is a WINDOWS DLL for 32 Bit and 64 Bit. But we sell also the
source. So GeoDLL can compiled for other platforms.

I imagine there are also open-source toolkits that cover this area. How do
you compare with those?
--- Synchronet 3.21a-Linux NewsLink 1.2

From Newsgroup: comp.lang.misc

I imagine there are also open-source toolkits that cover this area. How do you compare with those?

GeoDLL is a Geodetic Development Kit resp. a program library and
funktions collection for worldwide 2D and 3D Coordinate Transformations
and Datum Shifts with highest accuracy and for calculating Meridian Convergence and many Extra Parameters. Furthermore: Helmert and
Molodensky Parameters, NTv2, HARN, INSPIRE, EPSG, Digital Elevation
Model (DEM), distance and Time Zone calculations and much more. GeoDLL
is available as 32Bit and 64Bit DLL and as C++ source code.

GeoDLL uses Coordinate Transformation formulas based upon EPSG
specifications and publications by Schatz, Schuhr and Klotz and
Hooijberg. Algorithms used for country-specific transformations are
either published or made directly available by the Measurement
Authorities of the respective countries or by similar respectable institutions. To achieve the highest precision only strong formula
algorithms are used for calculations.

Coordinate Transformations and Datum transitions by GeoDLL have
extremely high precision ranging within millimeters. A good example of geographic coordinates transformations between Gauß-Kruger and UTM
Coordinate Systems made with GeoDLL are the results published by the North-Rhine Westphalia Land Survey Commission. It was confirmed that the differences were within the lower millimeter range.

For a statement about the accuracy were comparative calculations
realized with a set of test data of the "Arbeitsgemeinschaft der Vermessungsverwaltungen der Länder der Bundesrepublik Deutschland"
(ADV). It was confirmed that the differences were less then 0,2 millimeter.

Another interesting test series for a quality check was conducted by the German network operator Westnetz GmbH with an extreme NTv2 file. More
than 4.3 million points were transformed with TRANSDATpro / GeoDLL and
with a reference software from Gauß-Krüger/DHDN90 to UTM/ETRS89 and then compared. There were only very rarely deviations of more than one
millimeter. These only affected coordinates that were outside the scope
of the NTv2 file.

The test result and statements on the calculation speed and much more information can be found in our Publication area at https://www.killetsoft.de/p_gdla_e.htm

--- Synchronet 3.21a-Linux NewsLink 1.2

From Newsgroup: comp.lang.misc

On 18/11/2025 09:09, Fred Killet wrote:

I imagine there are also open-source toolkits that cover this area.
How do
you compare with those?

<snip>

So basically, your posts are spam. It's just advertising for a
commercial product on newsgroups that are non-commercial, and unrelated.
The product itself might be great - that doesn't matter. Usenet
groups are non-commercial because if everyone who sells (or gives away
free) a bit of software were to make posts, they would all be totally
swamped by the adverts.

Your software is not remotely relevant to miscellaneous language
discussions (this group), nor relevant to programming in C or C++ (other groups I know you have spammed). And even if it /were/ relevant to the
groups or the people who follow them, adverts are /always/
inappropriate. Adverts for open-source and free alternatives would also
be inappropriate here.

So please take your adverts elsewhere. If you want to discuss
programming languages, this is the place to be. If you want to sell
your software, buy a sponsored term on google or something.



--- Synchronet 3.21a-Linux NewsLink 1.2

From Newsgroup: comp.lang.misc

On Tue, 18 Nov 2025 09:09:43 +0100, Fred Killet wrote:

For a statement about the accuracy were comparative calculations
realized with a set of test data of the "Arbeitsgemeinschaft der Vermessungsverwaltungen der Länder der Bundesrepublik Deutschland"
(ADV). It was confirmed that the differences were less then 0,2 millimeter.

I imagine there are also open-source toolkits that cover this area. How do
you compare with those?
--- Synchronet 3.21a-Linux NewsLink 1.2

From Newsgroup: comp.lang.misc

Don't be so strict. My posting provides information about a programming
tool that can save C programmers a lot of time. Over the years, GeoDLL
has accumulated a wealth of expert knowledge. For C programmers, it can
be important to know where this expert knowledge can be accessed.
--- Synchronet 3.21a-Linux NewsLink 1.2

From Newsgroup: comp.lang.misc

On 19/11/2025 12:39, Fred Killet wrote:

Don't be so strict. My posting provides information about a programming
tool that can save C programmers a lot of time. Over the years, GeoDLL
has accumulated a wealth of expert knowledge. For C programmers, it can
be important to know where this expert knowledge can be accessed.

Perhaps 0.01% of C programmers have the remotest interest in geodetic libraries. Perhaps 0.01% of /those/ don't know how to use google to
find out about what libraries are available.

Your posts are spam. Unwanted commercial advertising in a space that
aims to be advert-free. No one can stop you posting whatever you like
here - that's the cost of free speech. But we /can/ let you know that
it is unwanted.

Feel free to make posts here discussing programming languages. But this
group is for discussing programming languages, not for pushing sales.


<https://en.wikipedia.org/wiki/Spamming>
--- Synchronet 3.21a-Linux NewsLink 1.2

From Newsgroup: comp.lang.misc

On Wed, 19 Nov 2025 12:39:53 +0100, Fred Killet wrote:

My posting provides information about a programming tool that can save C programmers a lot of time.

Not necessarily the only one, though.
--- Synchronet 3.21a-Linux NewsLink 1.2