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AxesEastNorthUp Class

The set of axes defined by the local East, North, and Up directions at a point with respect to the shape of a central body as the point moves over time.
Inheritance Hierarchy

Namespace:  AGI.Foundation.Geometry
Assembly:  AGI.Foundation.Models (in AGI.Foundation.Models.dll) Version: 24.1.418.0 (24.1.418.0)
Syntax
public class AxesEastNorthUp : Axes

The AxesEastNorthUp type exposes the following members.

Constructors
  NameDescription
Public methodAxesEastNorthUp
Initialize a new instance. The user must set ReferencePoint and CentralBody.
Protected methodAxesEastNorthUp(AxesEastNorthUp, CopyContext)
Initializes a new instance as a copy of an existing instance.
Public methodAxesEastNorthUp(CentralBody, Point)
Initializes a new instance.
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Properties
  NameDescription
Public propertyCentralBody
Gets or sets the central body that defines the surface.
Public propertyIsFrozen
Gets a value indicating whether this object is frozen. A frozen object cannot be modified and an ObjectFrozenException will be thrown if an attempt is made to do so.
(Inherited from DefinitionalObject.)
Public propertyReferencePoint
Gets or sets the reference point that defines the axes.
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Methods
  NameDescription
Protected methodCheckForSameDefinition(Axes)
Checks to determine if another instance has the same definition as this instance and returns if it does. Derived classes MUST override this method and check all new fields introduced by the derived class for definitional equivalence. It is NOT necessary to check base class fields because the base class will already have done that. When overriding this method, you should NOT call the base implementation because it will return for all derived-class instances. Derived classes should check the type of other to preserve the symmetric nature of IsSameDefinition(Object).
(Overrides AxesCheckForSameDefinition(Axes).)
Protected methodCheckForSameDefinition(AxesEastNorthUp)
Checks to determine if another instance has the same definition as this instance and returns if it does. Derived classes MUST override this method and check all new fields introduced by the derived class for definitional equivalence. It is NOT necessary to check base class fields because the base class will already have done that. When overriding this method, you should NOT call the base implementation because it will return for all derived-class instances. Derived classes should check the type of other to preserve the symmetric nature of IsSameDefinition(Object).
Protected methodCheckForSameDefinition(DefinitionalObject)
Checks to determine if another instance has the same definition as this instance and returns if it does. Derived classes MUST override this method and check all new fields introduced by the derived class for definitional equivalence. It is NOT necessary to check base class fields because the base class will already have done that. When overriding this method, you should NOT call the base implementation because it will return for all derived-class instances. Derived classes should check the type of other to preserve the symmetric nature of IsSameDefinition(Object).
(Inherited from Axes.)
Public methodClone
Clones this object using the specified context.
(Overrides DefinitionalObjectClone(CopyContext).)
Protected methodComputeCurrentDefinitionHashCode
Computes a hash code based on the current properties of this object. Derived classes MUST override this method and compute a hash code that combines: a unique hash code seed, the base implementation result, and the hash codes of all new fields introduced by the derived class which are used in the CheckForSameDefinition(DefinitionalObject) method.
(Overrides AxesComputeCurrentDefinitionHashCode.)
Public methodStatic memberComputeFixedToEastNorthUpRotation(Ellipsoid, Cartesian)
Computes the rotation from the central body's fixed axes to a set of east-north-up axes based on a specified reference point. In these axes, the X axis points toward the local East, the Y axis points toward the local North, and the Z axis points in the direction of the ellipsoid surface normal.
Public methodStatic memberComputeFixedToEastNorthUpRotation(Ellipsoid, MotionCartesian, Int32)
Computes the rotation from the central body's fixed axes to a set of east-north-up axes based on a specified reference point. In these axes, the X axis points toward the local East, the Y axis points toward the local North, and the Z axis points in the direction of the ellipsoid surface normal.
Public methodEnumerateDependencies
Enumerates the dependencies of this object by calling EnumerateT(T) for each object that this object directly depends upon. Derived classes which contain additional dependencies MUST override this method, call the base implementation, and enumerate dependencies introduced by the derived class.
(Overrides DefinitionalObjectEnumerateDependencies(DependencyEnumerator).)
Public methodEquals
Determines whether the specified object is equal to the current object.
(Inherited from Object.)
Protected methodFinalize
Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.
(Inherited from Object.)
Public methodFreeze
Freezes this object. Further attempts to modify it will result in an ObjectFrozenException.
(Inherited from DefinitionalObject.)
Protected methodFreezeAggregatedObjects
Called by Freeze to also freeze any objects that are considered to be a part of this object. Derived classes which contain additional aggregated objects MUST override this method, call the base implementation, and freeze aggregated objects introduced by the derived class. The objects that need to be frozen in this method are frequently created in this object's constructor and are not settable via properties.
(Inherited from DefinitionalObject.)
Public methodGetDefinitionHashCode
Gets a hash code representing the definition of this object.
(Inherited from DefinitionalObject.)
Public methodGetEvaluator
Gets an evaluator that can be used to find the transformation from this axes' parent axes to this axes at a given date. Consider using the methods of GeometryTransformer instead of calling this method directly. See GetEvaluator(EvaluatorGroup) for details.
(Inherited from Axes.)
Public methodGetEvaluator(EvaluatorGroup)
Gets an evaluator that can be used to find the transformation from ReferencePoint's Axes to a new Axes defined by the East-North-Up convention at a given JulianDate. The new axes will be represented by a Motion<UnitQuaternion, Cartesian> specifying the orientation of these Axes. Derivative information is provided if Point provides derivatives.
(Overrides AxesGetEvaluator(EvaluatorGroup).)
Public methodGetHashCode
Serves as the default hash function.
(Inherited from Object.)
Public methodGetService
Gets the service object of the specified type.
(Inherited from Axes.)
Public methodGetType
Gets the Type of the current instance.
(Inherited from Object.)
Public methodGetVectorElement(CartesianElement)
Creates a Vector representing the X, Y or Z of this axes. Note that the vector returned will return trivial answers unless observed in some other axes. Use the GeometryTransformer to properly observe the vector instead of getting an evaluator directly.
(Inherited from Axes.)
Public methodGetVectorElement(CartesianElement, Int32)
Creates a Vector representing the X, Y or Z of this axes. Note that the vector returned will return trivial answers unless observed in some other axes. Use the GeometryTransformer to properly observe the vector instead of getting an evaluator directly.
(Inherited from Axes.)
Public methodIsSameDefinition
Determines if this object has the same definition as another object.
(Inherited from DefinitionalObject.)
Protected methodMemberwiseClone
Creates a shallow copy of the current Object.
(Inherited from Object.)
Protected methodThrowIfFrozen
Throws ObjectFrozenException if this object IsFrozen. This method should be called from any method or property that modifies this object.
(Inherited from DefinitionalObject.)
Public methodToString
Returns a string that represents the current object.
(Inherited from Object.)
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Remarks

The axes is defined such that:

  • The X axis points in the local East direction.
  • The Y axis points in the local North direction.
  • The Z axis points in the direction of the ellipsoid surface normal which passes through the point.

See Also