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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: 24.2.419.0 (24.2.419.0)
Syntax
public struct HelmertTransformation : IEquatable<HelmertTransformation>

The HelmertTransformation type exposes the following members.

Constructors
  NameDescription
Public methodHelmertTransformation
Initializes a new instance with the specified translational, scaling, and rotational parameters.
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Properties
  NameDescription
Public propertyRotation
Gets the off-diagonal components of the skew-symmetric rotation matrix.
Public propertyRotationalVelocity
Gets the rate of change of the off-diagonal components over time.
Public propertyScaling
Gets a small number that is added to one to form the diagonal components of the skew-symmetric rotation matrix.
Public propertyScalingRate
Gets the change in Scaling over time.
Public propertyTranslation
Gets the relative position vector between the reference frames.
Public propertyTranslationalVelocity
Gets the relative velocity vector between the reference frames.
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Methods
  NameDescription
Public methodCompose
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".
Public methodEquals(HelmertTransformation)
Indicates whether another instance of this type is exactly equal to this instance.
Public methodEquals(Object)
Indicates whether another object is exactly equal to this instance.
(Overrides ValueTypeEquals(Object).)
Public methodGetHashCode
Returns a hash code for this instance, which is suitable for use in hashing algorithms and data structures like a hash table.
(Overrides ValueTypeGetHashCode.)
Public methodGetType
Gets the Type of the current instance.
(Inherited from Object.)
Public methodInvert
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".
Public methodToString
Returns the fully qualified type name of this instance.
(Inherited from ValueType.)
Public methodTransform(Cartesian)
Transforms the position observed in the A frame to the B frame.
Public methodTransform(MotionCartesian)
Transforms the motion observed in the A frame to the B frame.
Public methodTransform(MotionCartesian, Int32)
Transforms the motion observed in the A frame to the B frame.
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Operators
  NameDescription
Public operatorStatic memberEquality
Returns if the two instances are exactly equal.
Public operatorStatic memberInequality
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.

See Also