Base class for Coord objects. More...

Inheritance diagram for EECFI.Coord:

Public Member Functions
	Coord ()
	Class constructor.
	Coord (long csRef, long der, double p[], double v[], double a[])
	Class constructor.
native Geodetic	getGeodetic (ModelId modelId, long deriv) throws CfiError
	Get geodetic coordinates of the input cartesian vector; Assumption: Coordinates are given in EARTH FIXED CS, otherwise an error message will be thrown.
native void	setGeodetic (ModelId modelId, long deriv, Geodetic geo) throws CfiError
	Set the cartesian vector from the input geodetic coordinates (EARTH FIXED CS).
native Kepler	getKepler (ModelId modelId, long mode) throws CfiError
	Get Keplerian elements for the input satellite state vector.
native void	setKepler (ModelId modelId, Kepler kep) throws CfiError
	Set cartesian satellite state vector from input Keplerian elements.
native StarData	getRaDec (ModelId modelId, long deriv) throws CfiError
	Get the spherical coordinates of the Coord vector.
native void	topocentricToEf (ModelId modelId, long mode, long deriv, Coord topOrigin, Topocentric topo)
	Change topocentric to EF CS.
native Topocentric	efToTopocentric (ModelId modelId, long mode, long der, Coord topOrigin)
	Change EF to topocentric CS.
Public Attributes
long	cs
	Coordinate system (enumeration value).
long	deriv
	Derivative flag that indicates which derivatives are computed.
double	pos []
	Position vector.
double	vel []
	Velocity vector.
double	acc []
	Acceleration vector.

Detailed Description

Base class for Coord objects.

Constructor & Destructor Documentation

EECFI.Coord.Coord ( )

Class constructor.

EECFI.Coord::Coord	(	long	csRef,
		long	der,
		double	p[],
		double	v[],
		double	a[]
	)

Class constructor.

Parameters:

	csRef	Coord reference system.
	der	Derivative.
	p	Position vector.
	v	Velocity vector.
	a	Acceleration vector.

Member Function Documentation

Topocentric EECFI.Coord::efToTopocentric	(	ModelId	modelId,
		long	mode,
		long	der,
		Coord	topOrigin
	)

Change EF to topocentric CS.

Parameters:

	modelId	Model id.
	mode	Flag to indicate if the input coordinates is location or a direction (ModeFlagEnum).
	der	Flag to indicate if the first derivative has to be computed (XLCFI_NO_DER or XLCFI_DER_1ST).
	topOrigin	Position of the topocentric CS in the EF CS.

Returns:: Topocentric coordinates.

Geodetic EECFI.Coord::getGeodetic	(	ModelId	modelId,
		long	deriv
	)			throws CfiError

Get geodetic coordinates of the input cartesian vector; Assumption: Coordinates are given in EARTH FIXED CS, otherwise an error message will be thrown.

Parameters:

modelId

Model Id.

deriv

derivative to be computed (XLCFI_NO_DER or XLCFI_1ST_DER).

deriv

derivative and mode to be computed. The possible values are possible:

XLCFI_NO_DER or XLCFI_ITER_NO_DER : No derivatives are computed. The algorithm is based in the Bowring iterative method
XLCFI_1ST_DER or XLCFI_ITER_1ST_DER: First derivatives are computed. The algorithm is based in the Bowring iterative method
XLCFI_NO_ITER_NO_DER : No derivatives are computed. The algorithm is based in the Bowring direct method
XLCFI_ITER_1ST_DER : First derivatives are computed. The algorithm is based in the Bowring direct method

The Bowring iterative method is more accurate but it provides a poor runtime perfomance. The Bowring direct method is less accurate than the iterative method at the satellite height, but it provides a better runtime perfomance.

Kepler EECFI.Coord::getKepler	(	ModelId	modelId,
		long	mode
	)			throws CfiError

Get Keplerian elements for the input satellite state vector.

Note: The position and velocity are expected to be in True of Date CS.

Parameters:

	modelId	Model id.
	mode	input keplerian elements type: XLCFI_KEPLER_MEAN or XLCFI_KEPLER_OSC.

Returns:: Keplerian elements.

StarData EECFI.Coord::getRaDec	(	ModelId	modelId,
		long	deriv
	)			throws CfiError

Get the spherical coordinates of the Coord vector.

It gets RA and Declination if the input coordinates are equatorial coordinates.
It gets galactic longitude and latitude if the input coordinates are galactic.

Note that Coord object must not be in XLCFI_EF CS.

Parameters:

	modelId	Model id.
	deriv	XLCFI_DER_1ST to compute proper motions and radial velocity (for galactic coordinates derivatives are not computed).

Returns:: Spherical coordinates.

void EECFI.Coord::setGeodetic	(	ModelId	modelId,
		long	deriv,
		Geodetic	geo
	)			throws CfiError

Set the cartesian vector from the input geodetic coordinates (EARTH FIXED CS).

Parameters:

	modelId	Model id.
	deriv	derivative to be computed (XLCFI_NO_DER or XLCFI_1ST_DER).
	geo	Geodetic coordinates.

void EECFI.Coord::setKepler	(	ModelId	modelId,
		Kepler	kep
	)			throws CfiError

Set cartesian satellite state vector from input Keplerian elements.

Parameters:

	modelId	Model id.
	kep	input keplerian elements.

void EECFI.Coord::topocentricToEf	(	ModelId	modelId,
		long	mode,
		long	deriv,
		Coord	topOrigin,
		Topocentric	topo
	)

Change topocentric to EF CS.

Parameters:

	modelId	Model id.
	mode	Flag to indicate if the input coordinates is location or a direction (ModeFlagEnum).
	deriv	Flag to indicate if the first derivative has to be computed (XLCFI_NO_DER or XLCFI_DER_1ST).
	topOrigin	Position of the topocentric CS in the EF CS.
	topo	Topocentric coordinates.