GeoDLL - Geodetic Development Kit
Function group "Coordinate Transformations"
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"
- Coordinate Transformation
- Reference System Transition
- Meridian Strip Transition
- 2D and 3D Coordinate Transformation
- Helmert and Molodensky Reference System Transition
- NTv2 and HARN grid file support
- Forward and backward transformations
- Numeric and alphanumeric coordinates
- Geographic and Cartesian coordinates
- Many projections (also rarely used ones)
- Thousands of predefined systems
- Use of EPSG codes
- Use of Measurement Units
- Calculation of Meridian Convergence, Origin Center Meridian, Geographical Point
Functions of the group "Coordinate Transformations"
- Function coordtrans() - 2D Coordinate Transf. / Datum shift, num. / alphanum. (char**)
- Function coordtrans2() - 2D Coordinate Transf. / Datum shift, num. / alphanum. (char*)
- Function coordtrans3() - 2D Coordinate Transformation / Datum shift, num., with notation
- Function coordtrans4() - 2D Coordinate Transformation / Datum shift, num, without notation
- Function coordtransex() - 2D Coordinate Transf. / Datum shift, reduced eastings
- Function coordtrans3d() - 3D Coordinate Transf. / Datum shift, num. / alphanum. (char**)
- Function coordtrans3d2() - 3D Coordinate Transf. / Datum shift, num. / alphanum. (char*)
- Function coordtrans3d3() - 3D Coordinate Transformation / Datum shift, only numeric
- Function coordtrans3d4() - 3D Coordinate Transformation / Datum shift, only numeric, no notations
- Function coordtrans3dex() - 3D Coordinate transform. / Datum shift, reduced eastings
- Function coordtransepsg() - EPSG code Coordinate Transformation / Datum shift
- Function meritrans() - Meridian strip change with GK und UTM coordinates
- Function setcoordarea() - Coordinate System range check on / off
- Function setcalcextra() - Calculation of extra parameters on / off
- Function coordcalcextra() - Calculation of extra parameters during coordinate transformations
- 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!