HelmertTransformation Structure

A Helmert transformation describing how to transform from one international terrestrial reference frame (ITRF) to another.

Namespace: AGI.Foundation.Coordinates
Assembly: AGI.Foundation.Models (in AGI.Foundation.Models.dll) Version: 24.1.418.0 (24.1.418.0)

Syntax

C++

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public struct HelmertTransformation : IEquatable<HelmertTransformation>

Public Structure HelmertTransformation
	Implements IEquatable(Of HelmertTransformation)

public value class HelmertTransformation : IEquatable<HelmertTransformation>

[<SealedAttribute>]
type HelmertTransformation =  
    struct
        interface IEquatable<HelmertTransformation>
    end

The HelmertTransformation type exposes the following members.

Constructors

	Name	Description
	HelmertTransformation	Initializes a new instance with the specified translational, scaling, and rotational parameters.

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Properties

	Name	Description
	Rotation	Gets the off-diagonal components of the skew-symmetric rotation matrix.
	RotationalVelocity	Gets the rate of change of the off-diagonal components over time.
	Scaling	Gets a small number that is added to one to form the diagonal components of the skew-symmetric rotation matrix.
	ScalingRate	Gets the change in Scaling over time.
	Translation	Gets the relative position vector between the reference frames.
	TranslationalVelocity	Gets the relative velocity vector between the reference frames.

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Methods

	Name	Description
	Compose	Forms a new KinematicTransformation as the composition of this transformation and the provided transformation. If this transformation represents the transformation between International Terrestrial Reference Frame (ITRF) "B" and International Terrestrial Reference Frame (ITRF) "C" and the provided transformation represents the transformation between ITRF "A" and ITRF "B", the result represents the transformation between ITRF "A" and ITRF "C".
	Equals(HelmertTransformation)	Indicates whether another instance of this type is exactly equal to this instance.
	Equals(Object)	Indicates whether another object is exactly equal to this instance. (Overrides ValueTypeEquals(Object).)
	GetHashCode	Returns a hash code for this instance, which is suitable for use in hashing algorithms and data structures like a hash table. (Overrides ValueTypeGetHashCode.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	Invert	Forms the inverse Helmert transformation. If this transformation represents the transformation between International Terrestrial Reference Frame (ITRF) "A" and International Terrestrial Reference Frame (ITRF) "B", the result represents the transformation between ITRF "B" and ITRF "A".
	ToString	Returns the fully qualified type name of this instance. (Inherited from ValueType.)
	Transform(Cartesian)	Transforms the position observed in the A frame to the B frame.
	Transform(MotionCartesian)	Transforms the motion observed in the A frame to the B frame.
	Transform(MotionCartesian, Int32)	Transforms the motion observed in the A frame to the B frame.

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Operators

	Name	Description
	Equality	Returns if the two instances are exactly equal.
	Inequality	Returns if the two instances are not exactly equal.

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Remarks

See the ITRF website for details on how the Helmert transformations are performed.

Reference

AGI.Foundation.Coordinates Namespace