GeoDLL - Geodetic Development Kit
Function group "Parameter Determination"

•  Detailed Description of the current Version
•  User Manual with all Function Descriptions
•  User Manual searching for expressions
•  List of Coordinate and Reference Systems
•  Download of the supported NTv2 / HARN grid files
•  Programming example  Group Prices GeoDLL
•  Download  Place order

GeoDLL - Function Groups

•  Function group "Coordinate Transformations"
•  Additional function group "NTv2 Transformations"
•  Function group "NTv2 Tools"
•  Function group "User Definitions"
•  Function group "Parameter Determination"
•  Function group "Distance Calculations"
•  Function group "Notation Calculations"
•  Function group "Map Calculations"
•  Function group "Elevation Calculations"
•  Function group "Transformation Parameter"
•  Function group "Time Zone Calculations"
•  Geodetic functions without group assignment

Continental Drift
At present 2 to 7 cm per year

GeoDLL - Parameter Determination of Coordinate Reference Systems (CRS)

GeoDLL supports the development of geodetic software by providing geodetic functions, which are put together into function groups for specific tasks. To determine the parameters of Coordinate Systems and Reference Systems in own developments a license for the function group "Parameter Determination" can be purchased.

The group "Parameter Determination" contains functions to return values of in GeoDLL predefined and user-defined coordination systems, geodetic Reference Systems and ellipsoids.

Characteristics of the group "Parameter Determination"

1. Determination of GeoDLL codes equivalent to EPSG codes
2. Parameter, notation and range validity of Coordinate Systems
3. Parameters of Reference Systems and Reference System Transitions
4. Semi-axes and flattening of Earth Ellipsoids
5. Designation and parameter of Measurement Units
6. Formatted text representation of a Coordinate Reference System
7. Determination of many other parameters used by GeoDLL

Functions of the group "Parameter Determination"

1. Function getepsg2geodll() - Determine GeoDLL codes equivalent to EPSG code
2. Function getepsgcrsname() - Determine designation of an EPSG CRS
3. Function getcoordname() - Coordinate System name
4. Function getcoordsys() - Formatted Coordinate Systems parameters
5. Function getcoordform() - 2D Coordinate System's coordinates notation
6. Function getcoordform3d() - 3D Coordinate System's coordinates notation
7. Function getcoordaxis() - 2D Coordinate System axes names
8. Function getcoordaxis3d() - 3D Coordinate System axes names
9. Function getcoordarea() - Range validity values of a Coordinate System
10. Function getcoordfixref() - Determining Coordinate System has fixed Reference System
11. Function getcoordstdrefsys() - Default Reference System of a Coordinate System
12. Function getcoordstdunitpar() - Default Measurement Unit of a Coordinate System
13. Funktion getcoordproj() - Projection method number of a Coordinate System
14. Funktion getcoordstrstatus() - Determining Coordinate System is a strip system
15. Function getrefname() - Reference System name
16. Function getrefsys() - Formatted Reference Systems parameters
17. Function getellname() - Ellipsoid name
18. Function getellsys() - Formatted ellipsoid parameters
19. Function getellsource() - Source ellipsoid demi-axes
20. Function getelltarget() - Target ellipsoid demi-axes
21. Function getunitname() - Designation of a Measurement Unit
22. Function getunitpar() - Calculation constant of a Measurement Unit

Ausführliche Funktionsbeschreibungen

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