Geoid Model Parameters Dialog

As the geoid model file alone contains insufficient geodetic information, it must be accompanied by a WKT file. By completing the fields in the dialog, it is possible to generate the necessary WKT file for use with the Geodetic User Interface. For detailed information regarding the fields, please refer to the table below the image.

Upon completing the configuration of the fields, click the ‘Create Model’ button to copy or convert the geoid model and save the WKT file to the default shared location.
(On Windows: Public Documents\QPS\Shared\Geo\Geoid)

Item	Info
File Path	This is the path where the geoid model file is located
File Format	Shows you the file format
Horizontal Unit	For the Latitude and Longitude
Vertical Unit	For the separation values
Model Type	This shows you if a model is Absolute or Relative: Absolute - separation values are referenced to a Datum (for example, ETRS '89 or NAD '83 (2011)); Relative - separation values are referenced to another offset model (which is Absolute and on the same Horizontal Datum).
Horizontal Datum	Select the datum on which the separation model was created. In this case, the Latitude and Longitude were defined on ETRS '89.
Source Vertical Datum	Relevant when dealing with a relative model This is the vertical datum to which the separation value is linked.
Target Vertical Datum	Select the target vertical datum. This can be a model for which an EPSG code is defined. Optional to create a custom vertical datum. In this case, heights are related to DHHN 2016
Name	The name of the model that will be shown in the Geodetic User Interface
Interpolation Method	Spline - spline interpolation using 16 points (4 by 4 window around the current position) Bilinear - linear interpolation using 4 points around the current position
Transform Accuracy	A fixed accuracy can be defined
Mask	Dependent on the file format, fixed value or definable
Unique ID	Unique Model ID may not overlap with existing custom geoid models