Ellipsoid Class

Uses

GeoCalcPBW::Serializable

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.

Public Constructors

Constructor	Description
CreateEllipsoid	Creates a new instance of the Ellipsoid class
Ellipsoid	Creates a new instance of the Ellipsoid class

Public Methods

Method	Description
Clone	Inherited from GeoCalcPBW::Serializable
CCGridDirect	Given a reference point and a CCG string, this method calculates the location of the point described by the CCG string
CCGridInverse	Given a reference point and a contact point, this method calculates the CCG string that describes the location of the contact point relative to the reference point
ComputeDirect	Given a point, an azimuth, and a distance, this method computes a Great Circle that passes through the specified point at the specified azimuth and returns the point on the Great Circle that is the specified distance from the input point
ComputeInverse	Given two points, this method computes a Great Circle that passes through both points and returns the azimuth at which the Great Circle intersects each point as well as the distance between the points on the Great Circle
ComputeOrthometricScaleAtLatitude	Computes the height scale at a specific latitude and ellipsoid height
ComputeRadiusAtLatitude	Produces the radius of the Ellipsoid at the specified latitude
DeepCopy	Produces a deep-copy of an Ellipsoid
get_Eccentricity	Returns the eccentricity of this Ellipsoid
get_EccentricitySquared	Returns the square of the eccentricity of this Ellipsoid
get_Identifiers	Inherited from GeoCalcPBW::Serializable
get_InverseFlattening	Returns the inverse of the flattening for this Ellipsoid
get_InvFlatDefinitive	Indicates if the InverseFlattening property should be used to define the Ellipsoid
get_Name	Inherited from GeoCalcPBW::Serializable
get_ObjectType	Inherited from GeoCalcPBW::Serializable
get_Remarks	Inherited from GeoCalcPBW::Serializable
get_SemiMajor	Returns the semi-major radius of this Ellipsoid
get_SemiMinor	Returns the semi-minor radius of this Ellipsoid
HasIdentifierIn	Inherited from GeoCalcPBW::Serializable
PolygonArea	Calculates the area of a polygon on this Ellipsoid
RhumbDirect	Given a point, an azimuth, and a distance, this method computes a Rhumb Line and finds the point that is the specified distance away from the input point
RhumbInverse	Given two points, this method computes a Rhumb Line between the points and returns the distance between the points on the line and the azimuth of the line
set_Identifiers	Inherited from GeoCalcPBW::Serializable
set_InverseFlattening	Sets the inverse of the flattening for this Ellipsoid
set_InvFlatDefinitive	Sets whether the InverseFlattening property should be used to define the Ellipsoid
set_Name	Inherited from GeoCalcPBW::Serializable
set_Remarks	Inherited from GeoCalcPBW::Serializable
set_SemiMajor	Sets the semi-major radius of this Ellipsoid
set_SemiMinor	Sets the semi-minor radius of this Ellipsoid
ValueEquals	Compares the value of two Ellipsoids

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