InternationalTerrestrialReferenceFrameTransformer.ReadFromItrfTransformationFile Method (String) |
Reads an ITRF transformation parameters file and creates a list of ITRF transformations. Each
file contains transformation parameters from a specific ITRF to several other ITRFs. The forward
transformations from the specific ITRF to the other ITRFs and the backward transformations from
the other ITRFs to the specific ITRF are included in the resulting list of ITRFs.
Namespace: AGI.Foundation.Geometry
Assembly: AGI.Foundation.Models (in AGI.Foundation.Models.dll) Version: 25.1.421.0 (25.1.421.0)
Syntaxpublic static List<InternationalTerrestrialReferenceFrameTransformer> ReadFromItrfTransformationFile( string filepath )
Parameters
- filepath
- Type: System.String
String file path for ITRF transformation parameters file.
Return Value
Type: List<InternationalTerrestrialReferenceFrameTransformer>A list of ITRF transformations.
Exceptions| Exception | Condition |
|---|---|
| ArgumentNullException | Thrown when filepath is null. |
RemarksThe units are automatically converted into meters, seconds, and radians from mm, years, and milli-arc seconds. Parts per billion (ppb) are divided by one billion to make the Scaling constant term unitless. The names of the ITRFs before 2000 in the files are modified to include four-digit years (e.g. ITRF97 becomes ITRF1997)
A file of this format that handles conversions to and from ITRF2020 can be found here. A similar file that handles conversions to and from ITRF2014 can be found here.
See Also