InternationalGeomagneticReferenceFieldVectorReadTxtFile Method (String)

Reads an IGRF .txt file and creates a magnetic field vector from it.

Note that the rate coefficients for all blocks before the final block will be calculated using interpolation. Also, note that the units of the magnetic field vector are in tesla, the TargetPoint will still need to be set, and the magnetic field vector will default to being resolved in the Axes of the PrincipalFrame of Earth as obtained from the current CentralBodiesFacet unless the DefinedInFrame is set. The ReferenceDistance is set to EarthReferenceDistance, which is the official reference distance for the IGRF models.

Namespace: AGI.Foundation.Celestial
Assembly: AGI.Foundation.Models (in AGI.Foundation.Models.dll) Version: 24.3.420.0 (24.3.420.0)

Syntax

C++

Copy

public static InternationalGeomagneticReferenceFieldVector ReadTxtFile(
	string filePath
)

Public Shared Function ReadTxtFile ( 
	filePath As String
) As InternationalGeomagneticReferenceFieldVector

public:
static InternationalGeomagneticReferenceFieldVector^ ReadTxtFile(
	String^ filePath
)

static member ReadTxtFile : 
        filePath : string -> InternationalGeomagneticReferenceFieldVector

Parameters

filePath: Type: SystemString
String file path for IGRF .txt file.

Return Value

Type: InternationalGeomagneticReferenceFieldVector
A magnetic field vector corresponding to the IGRF model.

Exceptions

Exception	Condition
ArgumentNullException	Thrown when filePath passed in is .

Remarks

See IGRF website: https://www.ngdc.noaa.gov/IAGA/vmod/igrf.html. An updated .txt file can be downloaded by clicking the link "text file".

Reference

InternationalGeomagneticReferenceFieldVector Class

ReadTxtFile Overload

AGI.Foundation.Celestial Namespace

InternationalGeomagneticReferenceFieldVectorAddLanguageSpecificTextSet("LST77B3946C_0?cpp=::|nu=.");ReadTxtFile Method (String)

Parameters

Return Value

Reference

InternationalGeomagneticReferenceFieldVectorReadTxtFile Method (String)