Killet Software 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 "International 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 always are well informed about our company, we write actual news, current information and special offers here into this column.

KilletSoft Logo PolyGonal Validity Scopes
The new program NTv2Poly complements NTv2 files with Polygonal Validity Scopes that are taken from an outline shapefile.  Read the Description...

KilletSoft Logo Very big NTv2 files
Solutions for problems with large NTv2 files in GIS and Geosoftware  Read the Press Release...

KilletSoft Logo GDA2020
The new geodetic Reference System GDA2020 of Australia is supported by TRANSDAT and GeoDLL now.  Read the Press Release...
 View the list of CRS...

KilletSoft Logo BWTA2017
Baden-Wuerttemberg has completed the close-meshed NTv2 grid file for the transformation of geodata in real estate cadastres to UTM/ETRS89.
 Read the Press Release...

KilletSoft Logo GoogleMaps / OpenStreetMap
KilletSoft converts Geodata for Navigation in free Map Services.
 Read the White Paper...

KilletSoft Logo Quality Analysis
Practice oriented Accuracy Verification of the Software TRANSDAT and GeoDLL with an extremely structured NTv2 grid file.
 Read the White Paper...

KilletSoft Logo Innovation Award 2016
Award 2016 KilletSoft's geodetic software has won for the second year in succession the Innovation Award from the Initiative Small and Medium Enterprises.
 Certificate TRANSDAT...
 Certificate ORTWIN...
 Read the Press Release...

KilletSoft Logo GeoDLL / TRANSDAT
Proposal for using Polygonal Validity Scopes in NTv2 grid files.
 Read the White Paper...

KilletSoft Logo NTv2 Hamburg
Highly accurate NTv2 file of the Federal State of Hamburg free of charge for TRANSDAT and GeoDLL users.
 Download the NTv2 file ...
 Read the Press Release...

KilletSoft Logo GeoDLL
GeoDLL provides Time Zone Calculations with aspect to Maritime Territorial Limits.
 Read the Press Release...

KilletSoft Logo TRANSDAT / GeoDLL
The program and the DLL now support all HARN / HPGN Reference Systems of the United States.

KilletSoft Logo Translators wanted!
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. Everybody who is interested can translate a new language file into his native language for himself and all users.