Ellipsoid Class

Inherits from

Description

The Ellipsoid class represents a mathematical approximation of the shape of the Earth. An Ellipsoid can be defined by its SemiMajor and SemiMinor radii, or by its SemiMajor radius and an InverseFlattening value. It provides methods for performing mathematical computations about the shape and size of the Ellipsoid, as well as the relationship between points on the Ellipsoid.

This object can also represent a sphere. The sphere is a unique case where the SemiMajor and SemiMinor radii are equal. It is not possible to define a sphere by specifying the SemiMajor radius and the InverseFlattening value; one must specify the SemiMajor and SemiMinor radii.

Constructors

Constructor	Description
Ellipsoid	Creates a new instance of the Ellipsoid class

Properties

Property	Description
AxisRatio	Gets the axis ratio.
Eccentricity	Gets the eccentricity.
EccentricitySquared	Gets the squared eccentricity.
Flattening	Gets the flattening. Mostly a convenience function.
InverseFlattening	Gets or sets the inverse flattening.
InverseFlatteningDefinitive	Gets or sets whether the inverse flattening is used to define the ellipsoid instead of the semi-minor axis.
IsSpherical	Is this ellipsoid a sphere (i.e. does semi major == semi minor).
SemiMajor	Gets or sets the semi major axis.
SemiMinor	Gets or sets the semi minor axis.
Inherited Property	Description
AlwaysSaveToCustom	Inherited from Serializable.
DeprecatedTimestamp	Inherited from Serializable.
HistoryList	Inherited from Serializable.
Identifiers	Inherited from Serializable.
IsBase	Inherited from Serializable.
IsDeprecated	Inherited from Serializable.
IsFileBased	Inherited from Serializable.
IsReadOnly	Inherited from Serializable.
IsUsable	Inherited from Serializable.
Name	Inherited from Serializable.
ObjectType	Inherited from Serializable.
ObjectTypeName	Inherited from Serializable.
Remarks	Inherited from Serializable.
RevisionTimestamp	Inherited from Serializable.

Methods

Method	Description
CCGridDirect	Computes the location of a contact point given a reference point and a Cartesian Coordinate Grid (CCG) description.
CCGridInverse	Computes the Cartesian Coordinate Grid (CCG) description of the specified point.
Clone	Creates a clone of this object. (Overrides Serializable.Clone()).
ComputeDirect	Computes the location of a point projected along a geodesic line.
ComputeDirectEx	Computes the location of a point projected along a geodesic line.
ComputeDirectHAE	Computes the location of a point projected along a geodesic line at a specified height above the ellipsoid.
ComputeInverse	Computes the geodesic inverse between two points.
ComputeInverse3D	Computes the three-dimensional inverse azimuth and distance between two points.
ComputeInverseEx	Computes the geodesic inverse between two points.
ComputeInverseHAE	Computes the geodesic inverse between two points at a specified height above the ellipsoid.
ComputeOrthometricScaleAtLatitude	Computes the elevation factor (orthometric scale) at a specific latitude.
ComputeRadiusAtLatitude	Computes the ellipsoid radius at the specified latitude.
DistanceAlongMeridian	Computes the distance along a meridian line between two latitudes.
DistanceAlongParallel	Computes the distance along a parallel line between two longitudes.
Equals	Value equals comparison. (Overrides Object.Equals()).
Equivalent	Comparison to see if the object obj is "nearly" equal to this. (Overrides the abstract Serializable.Equivalent()).
GeodesicIntersection	Computes the point of intersection for two geodesic lines.
GetHashCode	Serves as a hash function for a particular type. (Overrides Object.GetHashCode()).
PolygonArea	Computes the area, on the ellipsoid, of a polygon defined by a collection of interpreted geodetic points.
RhumbDirect	Computes the location of a point projected along a rhumbline.
RhumbInverse	Computes the rhumbline inverse between two points.
StrictlyEquals	Comparison to see if the object obj is exactly equal to this. (Overrides Serializable.StrictlyEquals()).
TraceOnGeodesic	Populates a coordinate point collection with regularly-spaced geodetic points tracing a geodesic line between two points.
TraceOnParallel	Populates a coordinate point collection with regularly-spaced geodetic points tracing a parallel line (line of latitude).
Inherited Method	Description
ClearSaveInfo	Inherited from Serializable.
ClearUsabilityFlags	Inherited from Serializable.
EquivalentDiffs	Inherited from Serializable.
GetObjectDescription	Inherited from Serializable.
GetType	Gets the Type of the current instance. (Inherited from Object).
IsBaseNearlyEqual	Inherited from Serializable.
IsNearlyEqual	Inherited from Serializable.
IsUsabilityFlagSet	Inherited from Serializable.
SetUsabilityFlag	Inherited from Serializable.
ToString	Returns a string that represents the current object. (Inherited from Object).
TryToFixUsability	Inherited from Serializable.
UnsetUsabilityFlag	Inherited from Serializable.

Overloaded Operators

Operator	Description
operator=	Assigns a new value to this Ellipsoid
operator==	Compares the value of two Ellipsoids
operator!=	Compares the value of two Ellipsoids