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Killet GeoSoftware Ing.-GbR - short: KilletSoft - is a software company, which was established in the year 1991. The society is divided into the ranges "Geodetic Standard Software", "Development Tools for Geoinformatics" and "German Geodata". The focal trades of the companies supplied by KilletSoft are consulting engineers, GIS developers, Internet marketing, public utilities, logistics, telecommunications, security and public services.
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GeoDLL - Accurate Coordinate Transformations

GeoDLL supports the development of geodetic software by providing geodetic functions, which are put together into function groups for specific tasks. To use accurate coordinate transformations in own developments a license for the function group "Coordinate Transformations" can be purchased.

GeoDLL performs Coordinate Transformations fast and with high accuracy. For this purpose the DLL supports thousands of worldwide Coordinate Systems, geodetic Reference Systems, Reference System Transitions (geodetic datum shifts) and Meridian Strip Transitions. Additional the software supports User-defined Systems, 2D/3D transformations, Extra Parameters like Meridian Convergence and Origin Center Meridian, INSPIRE, NTv2, HARN, EPSG, GPS, Continental Drift and much more.

Characteristics of the group "Coordinate Transformations"

  1. Coordinate Transformation
  2. Reference System Transition
  3. Meridian Strip Transition
  4. 2D and 3D Coordinate Transformation
  5. Helmert and Molodensky Reference System Transition
  6. NTv2 and HARN grid file support
  7. Forward and backward transformations
  8. Numeric and alphanumeric coordinates
  9. Geographic and Cartesian coordinates
  10. Many projections (also rarely used ones)
  11. Thousands of predefined systems
  12. Use of EPSG codes
  13. Use of Measurement Units
  14. Calculation of Meridian Convergence, Origin Center Meridian, Geographical Point

Functions of the group "Coordinate Transformations"

  1. Function coordtrans() - 2D Coordinate Transf. / Datum shift, num. / alphanum. (char**)
  2. Function coordtrans2() - 2D Coordinate Transf. / Datum shift, num. / alphanum. (char*)
  3. Function coordtrans3() - 2D Coordinate Transformation / Datum shift, num., with notation
  4. Function coordtrans4() - 2D Coordinate Transformation / Datum shift, num, without notation
  5. Function coordtransex() - 2D Coordinate Transf. / Datum shift, reduced eastings
  6. Function coordtrans3d() - 3D Coordinate Transf. / Datum shift, num. / alphanum. (char**)
  7. Function coordtrans3d2() - 3D Coordinate Transf. / Datum shift, num. / alphanum. (char*)
  8. Function coordtrans3d3() - 3D Coordinate Transformation / Datum shift, only numeric
  9. Function coordtrans3d4() - 3D Coordinate Transformation / Datum shift, only numeric, no notations
  10. Function coordtrans3dex() - 3D Coordinate transform. / Datum shift, reduced eastings
  11. Function coordtransepsg() - EPSG code Coordinate Transformation / Datum shift
  12. Function meritrans() - Meridian strip change with GK und UTM coordinates
  13. Function setcoordarea() - Coordinate System range check on / off
  14. Function setcalcextra() - Calculation of extra parameters on / off
  15. Function coordcalcextra() - Calculation of extra parameters during coordinate transformations
  16. Function coordcalcextraind() - Calculation of extra parameters independend of coordinate transformations

Ausführliche Funktionsbeschreibungen

Detailed descriptions of all geodetic functions of this function group you find here in the online manual!

KilletSoft News In order that you are always well informed about our company, we write actual news, current information and special offers here into this column.
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KilletSoft Logo KilletSoft supplies NASA
We supply NASA with the geodetic programs TRANSDATpro and SEVENPAR.
link_in Read more...
KilletSoft Logo New work sheet
Modeling an NTv2 file under the aspect of economic efficiency.
link_in Read the work sheet...
KilletSoft Logo Geodata Germany
All databases has been updated to the data conditions of January 1st, 2024.
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KilletSoft Logo New work sheet
Display Formats of UTM Coordinates.
Third revised edition of the popular technical article.
link_in Read the work sheet...
KilletSoft Logo New work sheet
What actually is a Coordinate Reference System?
Second revised edition.
link_in Read the work sheet...
KilletSoft Logo Illegal software versions
The illegal use of our software got out of control!
link_in Read our Info...
KilletSoft Logo NTv2 collection
KilletSoft has collated NTv2 files worldwide into a collection on a central website and linked them for download.
link_in Read the Press Release...
link_in To the NTv2 collection...
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Author: Dipl.-Ing. Fred Killet
Page name: p_gdlfkt_e.htm
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Period: since Januar 1, 2024