org.stellarium
Class EllipticalOrbit

java.lang.Object
  org.stellarium.Orbit
      org.stellarium.EllipticalOrbit

public class EllipticalOrbit
extends Orbit

Version:

0.8.2

Author:

Jerome Beau, Fred Simon

Nested Class Summary

class	EllipticalOrbit.EllipticalOrbitFunc
(package private) class	EllipticalOrbit.SolveKeplerFunc1 Standard iteration for solving Kepler's Equation
(package private) class	EllipticalOrbit.SolveKeplerFunc2 Faster converging iteration for Kepler's Equation; more efficient than above for orbits with eccentricities greater than 0.3.
(package private) class	EllipticalOrbit.SolveKeplerLaguerreConway
(package private) class	EllipticalOrbit.SolveKeplerLaguerreConwayHyp

Field Summary

(package private) double	argOfPeriapsis
(package private) double	ascendingNode
(package private) double	eccentricity
(package private) double	epoch
(package private) double	inclination
(package private) double	meanAnomalyAtEpoch
private double	pericenterDistance
(package private) double	period
(package private) double[]	rotate_to_vsop87

Constructor Summary

EllipticalOrbit(double _pericenterDistance, double _eccentricity, double _inclination, double _ascendingNode, double _argOfPeriapsis, double _meanAnomalyAtEpoch, double _period, double _epoch, double parent_rot_obliquity, double parent_rot_ascendingnode)

Method Summary

(package private) double	eccentricAnomaly(double M)
double	getBoundingRadius()
PosFunc	getEllipticalFunc()
double	getPeriod()
(package private) javax.vecmath.Vector3d	positionAtE(double E)
javax.vecmath.Vector3d	positionAtTime(double t)
(package private) void	positionAtTimevInVSOP87Coordinates(double JD, javax.vecmath.Tuple3d v)
void	sample(double start, double t, int nSamples, OrbitSampleProc proc)
(package private) double	sign(double x)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

pericenterDistance

private double pericenterDistance

eccentricity

double eccentricity

inclination

double inclination

ascendingNode

double ascendingNode

argOfPeriapsis

double argOfPeriapsis

meanAnomalyAtEpoch

double meanAnomalyAtEpoch

period

double period

epoch

double epoch

rotate_to_vsop87

double[] rotate_to_vsop87

Constructor Detail

EllipticalOrbit

public EllipticalOrbit(double _pericenterDistance,
                       double _eccentricity,
                       double _inclination,
                       double _ascendingNode,
                       double _argOfPeriapsis,
                       double _meanAnomalyAtEpoch,
                       double _period,
                       double _epoch,
                       double parent_rot_obliquity,
                       double parent_rot_ascendingnode)

Method Detail

getEllipticalFunc

public PosFunc getEllipticalFunc()

sign

double sign(double x)

eccentricAnomaly

double eccentricAnomaly(double M)

positionAtE

javax.vecmath.Vector3d positionAtE(double E)

positionAtTime

public javax.vecmath.Vector3d positionAtTime(double t)

Specified by:

positionAtTime in class Orbit

Returns:

The offset from the center

positionAtTimevInVSOP87Coordinates

void positionAtTimevInVSOP87Coordinates(double JD,
                                        javax.vecmath.Tuple3d v)

getPeriod

public double getPeriod()

Overrides:

getPeriod in class Orbit

getBoundingRadius

public double getBoundingRadius()

Overrides:

getBoundingRadius in class Orbit

sample

public void sample(double start,
                   double t,
                   int nSamples,
                   OrbitSampleProc proc)

Specified by:

sample in class Orbit