jephem.astro.spacetime
Interface SpaceConstants

All Known Implementing Classes:

AstroContext, AstroPrefs, Curve, NewCurveDialog, NewEphemerisDialog, PreferencesDialog, SkyMapBase, Space, SwissEphemeris, Units

public interface SpaceConstants

Interface containing constants related with space. Related methods can be found in class Space.

Field Summary

static int	CARTESIAN Constant designating the cartesian way to express coordinates.
static int	COORD_V0 Constant designating the first velocity coordinate (dX/dt in cartesian, dr/dt in spherical).
static int	COORD_V1 Constant designating the second velocity coordinate (dY/dt in cartesian, dq/dt in spherical).
static int	COORD_V2 Constant designating the third velocity coordinate (dZ/dt in cartesian, dj/dt in spherical).
static int	COORD_X0 Constant designating the first spatial coordinate (X in cartesian, r in spherical).
static int	COORD_X1 Constant designating the second spatial coordinate (Y in cartesian, q in spherical).
static int	COORD_X2 Constant designating the third spatial coordinate (Z in cartesian, j in spherical).
static int	COORDGROUP_DELTA_BETA_LAMBDA Constant designating the "delta, beta, lambda" group of coordinates.
static int	COORDGROUP_DIST_ALPHA_DELTA Constant designating the "distance alpha, delta" group of coordinates.
static int	COORDGROUP_RLB Constant designating the "r, l, b" group of coordinates.
static int	COORDGROUP_XYZ Constant designating the "X, Y, Z" group of coordinates.
static int	FRAME_EC_HELIO_GEOMETRIC Constant designating heliocentric ecliptic reference frame, for geometric coordinates.
static int	FRAME_ECLIPTIC Constant designating geocentric ecliptic reference frame ; coordinates expressed in this frame are true apparent coordinates.
static int	FRAME_EQUATORIAL Constant designating geocentric equatorial reference frame ; coordinates expressed in this frame are true apparent coordinates.
static int	FRAME_GALACTIC Constant designating galactic reference frame.
static int	FRAME_HORIZONTAL_TOPOCENTRIC Constant designating horizontal topocentric reference frame.
static int	FRAME_THEORY Constant to express that of a coordinate is expressed in the frame of the theory used to compute it.
static double	LIGHT_VELOCITY Value of light velocity, (value UAI 1976 : 299792458 km.s-1).
static int	NB_COORDS Usual number of coordinates - value= 3 ; just for cleaner code.
static int	SPHERICAL Constant designating the spherical way to express coordinates.

Field Detail

CARTESIAN

public static final int CARTESIAN

Constant designating the cartesian way to express coordinates.

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Constant Field Values

COORD_V0

public static final int COORD_V0

Constant designating the first velocity coordinate (dX/dt in cartesian, dr/dt in spherical).

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Constant Field Values

COORD_V1

public static final int COORD_V1

Constant designating the second velocity coordinate (dY/dt in cartesian, dq/dt in spherical).

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Constant Field Values

COORD_V2

public static final int COORD_V2

Constant designating the third velocity coordinate (dZ/dt in cartesian, dj/dt in spherical).

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Constant Field Values

COORD_X0

public static final int COORD_X0

Constant designating the first spatial coordinate (X in cartesian, r in spherical).

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Constant Field Values

COORD_X1

public static final int COORD_X1

Constant designating the second spatial coordinate (Y in cartesian, q in spherical).

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COORD_X2

public static final int COORD_X2

Constant designating the third spatial coordinate (Z in cartesian, j in spherical).

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Constant Field Values

COORDGROUP_DELTA_BETA_LAMBDA

public static final int COORDGROUP_DELTA_BETA_LAMBDA

Constant designating the "delta, beta, lambda" group of coordinates.
labels = {"del", "bet", "lam"}.

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Constant Field Values

COORDGROUP_DIST_ALPHA_DELTA

public static final int COORDGROUP_DIST_ALPHA_DELTA

Constant designating the "distance alpha, delta" group of coordinates.
labels = {"dist.", "alpha", "beta"}.

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Constant Field Values

COORDGROUP_RLB

public static final int COORDGROUP_RLB

Constant designating the "r, l, b" group of coordinates.
labels = {"r", "l", "b"}.

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Constant Field Values

COORDGROUP_XYZ

public static final int COORDGROUP_XYZ

Constant designating the "X, Y, Z" group of coordinates.
labels = {"X", "Y", "Z"}.

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Constant Field Values

FRAME_EC_HELIO_GEOMETRIC

public static final int FRAME_EC_HELIO_GEOMETRIC

Constant designating heliocentric ecliptic reference frame, for geometric coordinates.

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Constant Field Values

FRAME_ECLIPTIC

public static final int FRAME_ECLIPTIC

Constant designating geocentric ecliptic reference frame ; coordinates expressed in this frame are true apparent coordinates.
Reference system : FK5.
Reference plane = mean ecliptic of date.
Equinox = true equinox of date.

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Constant Field Values

FRAME_EQUATORIAL

public static final int FRAME_EQUATORIAL

Constant designating geocentric equatorial reference frame ; coordinates expressed in this frame are true apparent coordinates.
Reference system : FK5.
Reference plane = true equator of date.
Equinox = true equinox of date.

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Constant Field Values

FRAME_GALACTIC

public static final int FRAME_GALACTIC

Constant designating galactic reference frame.

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Constant Field Values

FRAME_HORIZONTAL_TOPOCENTRIC

public static final int FRAME_HORIZONTAL_TOPOCENTRIC

Constant designating horizontal topocentric reference frame.

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Constant Field Values

FRAME_THEORY

public static final int FRAME_THEORY

Constant to express that of a coordinate is expressed in the frame of the theory used to compute it.

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Constant Field Values

LIGHT_VELOCITY

public static final double LIGHT_VELOCITY

Value of light velocity, (value UAI 1976 : 299792458 km.s^-1).

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Constant Field Values

NB_COORDS

public static final int NB_COORDS

Usual number of coordinates - value= 3 ; just for cleaner code.

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Constant Field Values

SPHERICAL

public static final int SPHERICAL

Constant designating the spherical way to express coordinates.

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Constant Field Values