EllipsoidGeodesic Class

A minimum length path conforming to the surface of an ellipsoid and connecting two planetodetic surface points.

This class utilizes the direct and indirect formulations for defining geodesics on an ellipsoid, as discussed in "Geodesics on an ellipsoid of revolution.", C. F. Karney, 7 February 2011. The algorithms have been adapted from GeographicLib version 1.44 to optimize performance for the .NET and Java frameworks.

Inheritance Hierarchy

SystemObject
AGI.Foundation.Geometry.ShapesEllipsoidSurfaceCurve
AGI.Foundation.Geometry.ShapesEllipsoidGeodesic

Namespace: AGI.Foundation.Geometry.Shapes
Assembly: AGI.Foundation.Core (in AGI.Foundation.Core.dll) Version: 24.3.420.0 (24.3.420.0)

Syntax

C++

Copy

public class EllipsoidGeodesic : EllipsoidSurfaceCurve

Public Class EllipsoidGeodesic
	Inherits EllipsoidSurfaceCurve

public ref class EllipsoidGeodesic : public EllipsoidSurfaceCurve

type EllipsoidGeodesic =  
    class
        inherit EllipsoidSurfaceCurve
    end

The EllipsoidGeodesic type exposes the following members.

Constructors

	Name	Description
	EllipsoidGeodesic(Ellipsoid, Cartographic, Cartographic)	Initializes a geodesic on the ellipsoid connecting the two provided planetodetic points.
	EllipsoidGeodesic(Ellipsoid, Cartographic, Double, Double)	Initializes a geodesic on the ellipsoid starting at the provided point and which has the indicated heading at that point and ends at a point located at the provided distance from the starting point.

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Properties

	Name	Description
	Ellipsoid	Gets the ellipsoid on which the geodesic lies. (Overrides EllipsoidSurfaceCurveEllipsoid.)
	FinalHeading	Gets the heading at the final point.
	FinalPoint	Gets the final planetodetic point on the path. (Overrides EllipsoidSurfaceCurveFinalPoint.)
	InitialHeading	Gets the heading at the initial point.
	InitialPoint	Gets the initial planetodetic point on the path. (Overrides EllipsoidSurfaceCurveInitialPoint.)
	SurfaceDistance	Gets the total distance along the geodesic to the location of the final point. (Overrides EllipsoidSurfaceCurveSurfaceDistance.)

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Methods

	Name	Description
	ComputeCartographicExtent	Computes the cartographic bounding box which contains the surface curve. This includes looking for the minimum and maximum latitudes which may lie above or below the initial and final points due to oblateness in the Ellipsoid. (Overrides EllipsoidSurfaceCurveComputeCartographicExtent.)
	ComputeHashCode	Computes the hash code for this curve. (Inherited from EllipsoidSurfaceCurve.)
	ComputeIntersection	Computes the nearest intersection (if any) between two EllipsoidSurfaceCurves. (Inherited from EllipsoidSurfaceCurve.)
	Equals(EllipsoidSurfaceCurve)	Indicates whether the current object is equal to another object of the same type. (Inherited from EllipsoidSurfaceCurve.)
	Equals(Object)	Indicates whether another object is exactly equal to this instance. (Inherited from EllipsoidSurfaceCurve.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
	FindClosestPointOnCurve(Cartographic)	Finds the closest point on the curve from the input point. (Inherited from EllipsoidSurfaceCurve.)
	FindClosestPointOnCurve(Cartographic, Double)	Finds the closest point on the curve from the input point. (Overrides EllipsoidSurfaceCurveFindClosestPointOnCurve(Cartographic, Double).)
	GetDiscretePoints	Get a set of points which represent the curve discretely based on a given granularity. (Inherited from EllipsoidSurfaceCurve.)
	GetHashCode	Returns a hash code for this instance, which is suitable for use in hashing algorithms and data structures like a hash table. (Inherited from EllipsoidSurfaceCurve.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	Heading	Provides the heading at a location on the geodesic.
	HeadingMotion	Provides the heading and rate of change of heading at a location on the geodesic.
	InterpolateUsingFraction	Provides the location of a point at the indicated portion along the geodesic. (Overrides EllipsoidSurfaceCurveInterpolateUsingFraction(Double).)
	InterpolateUsingSurfaceDistance	Provides the location of a point at the indicated distance along the geodesic. (Overrides EllipsoidSurfaceCurveInterpolateUsingSurfaceDistance(Double).)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	SurfaceMotion(Double)	Converts the motion given in terms of motion on the geodesic curve to motion of the surface point.
	SurfaceMotion(Double, Double, Double)	Converts the motion given in terms of motion on the geodesic curve to motion of the surface point.
	ToString	Returns a string that represents the current object. (Inherited from Object.)

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Reference

AGI.Foundation.Geometry.Shapes Namespace