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 Geodetic Development Kit GeoDLL 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
List of Coordinate Reference Systems:
https://www.killetsoft.de/p_gdll_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

--- PyGate Linux v1.5.19
* Origin: Dragon's Lair, PyGate NNTP<>Fido Gate (3:633/10)

On 10/15/2026 11:28 PM, Fred Killet wrote:

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 Geodetic Development Kit GeoDLL 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.[...]

Looks interesting. I do a lot of n-ary vector field work. If I can
expose it to "real world" data from various sensors it should be able to compute them using my algorithms. Say weather buoys, veins, stations can
be used. Right now I am just seeding it with data from other sources, fractals, etc.

Fwiw, here is a 2d example field from a circle intersection fractal of mine:

https://youtu.be/ygmp_XvdaqQ



--- PyGate Linux v1.5.19
* Origin: Dragon's Lair, PyGate NNTP<>Fido Gate (3:633/10)

On 10/19/2026 12:20 PM, Chris M. Thomasson wrote:

On 10/15/2026 11:28 PM, Fred Killet wrote:

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 Geodetic Development Kit GeoDLL 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.[...]

Looks interesting. I do a lot of n-ary vector field work. If I can
expose it to "real world" data from various sensors it should be able to compute them using my algorithms. Say weather buoys, veins, stations can
be used. Right now I am just seeding it with data from other sources, fractals, etc.

Fwiw, here is a 2d example field from a circle intersection fractal of
mine:

https://youtu.be/ygmp_XvdaqQ

Another field test that shows the flow using arrows:

https://youtu.be/1_HnXFEAh0E

--- PyGate Linux v1.5.19
* Origin: Dragon's Lair, PyGate NNTP<>Fido Gate (3:633/10)

Fwiw, here is a 2d example field from a circle intersection fractal of
mine:

https://youtu.be/ygmp_XvdaqQ

That's great! But fractals aren't my topic. It's more about geodesic coordinate transformations.


--- PyGate Linux v1.5.19
* Origin: Dragon's Lair, PyGate NNTP<>Fido Gate (3:633/10)

On 10/20/2026 9:19 PM, Fred Killet wrote:

Fwiw, here is a 2d example field from a circle intersection fractal of
mine:

https://youtu.be/ygmp_XvdaqQ

That's great! But fractals aren't my topic. It's more about geodesic coordinate transformations.

Wondering if I can integrate some of those transformations. Anyway, thanks.

--- PyGate Linux v1.5.19
* Origin: Dragon's Lair, PyGate NNTP<>Fido Gate (3:633/10)