org.stellarium
Class Navigator

java.lang.Object
  org.stellarium.Navigator

All Implemented Interfaces:

NavigatorIfc

public class Navigator
extends java.lang.Object
implements NavigatorIfc

Version:

0.8.2

Author:

Jerome Beau, Fred Simon

Nested Class Summary

private class

Navigator.AutoMove Struct used to store data for auto mov

Nested classes/interfaces inherited from interface org.stellarium.NavigatorIfc

NavigatorIfc.VIEWING_MODE_TYPE

Field Summary

private javax.vecmath.Point3d	equVision
private boolean	flagAutoMove Define if automove is on or off
private boolean	flagLockEquPos Define if the equatorial position is locked
private boolean	flagTracking Define if the selected object is followed
private double	jDay Curent time in Julian day
private javax.vecmath.Point3d	localVision Viewing direction in local and equatorial coordinates
static javax.vecmath.Matrix4d	mat_j2000_to_vsop87
static javax.vecmath.Matrix4d	mat_vsop87_to_j2000
private javax.vecmath.Matrix4d	matEarthEquToEye Modelview matrix for geocentric equatorial drawing
private javax.vecmath.Matrix4d	matEarthEquToJ2000
private javax.vecmath.Matrix4d	matEarthEquToLocal Transform from Observator local coordinate to Earth Equatorial
private javax.vecmath.Matrix4d	matHelioToEarthEqu Transform from Heliocentric to earth equatorial coordinate
private javax.vecmath.Matrix4d	matHelioToEye Modelview matrix for heliocentric equatorial drawing
private javax.vecmath.Matrix4d	matHelioToLocal Transform from Heliocentric to Observator local coordinate
private javax.vecmath.Matrix4d	matJ2000ToEarthEqu
private javax.vecmath.Matrix4d	matJ2000ToEye precessed version
private javax.vecmath.Matrix4d	matLocalToEarthEqu Transform from Observator local coordinate to Earth Equatorial
private javax.vecmath.Matrix4d	matLocalToEye Modelview matrix for observer local drawing
private javax.vecmath.Matrix4d	matLocalToHelio Transform from Observator local coordinate to Heliocentric
private Navigator.AutoMove	move Current auto movement
private Observator	position
private javax.vecmath.Point3d	precEquVision
private double	timeSpeed Positive : forward, Negative : Backward, 1 = 1sec/sec
private NavigatorIfc.VIEWING_MODE_TYPE	viewingMode defines if view corrects for horizon, or uses equatorial coordinates
private int	zoomingMode 0 : undefined, 1 zooming, -1 unzooming

Fields inherited from interface org.stellarium.NavigatorIfc

JD_DAY, JD_HOUR, JD_MINUTE, JD_SECOND

Constructor Summary

Navigator(Observator obs)

Method Summary

(package private) javax.vecmath.Point3d	earthEquToJ2000(javax.vecmath.Point3d v)
javax.vecmath.Point3d	earthEquToLocal(javax.vecmath.Point3d v) Transform vector from equatorial coordinate to local
javax.vecmath.Matrix4d	getEarthEquToEyeMat()
(package private) javax.vecmath.Point3d	getEquVision()
boolean	getFlagLockEquPos()
boolean	getFlagTraking()
javax.vecmath.Matrix4d	getHelioToEyeMat() Return the modelview matrix for some coordinate systems
Planet	getHomePlanet()
javax.vecmath.Matrix4d	getJ2000ToEyeMat()
double	getJDay()
javax.vecmath.Matrix4d	getLocalToEyeMat()
(package private) javax.vecmath.Point3d	getLocalVision()
javax.vecmath.Matrix4d	getMatVsop87ToJ2000()
javax.vecmath.Point3d	getObserverHelioPos()
javax.vecmath.Point3d	getPrecEquVision()
double	getTimeSpeed()
NavigatorIfc.VIEWING_MODE_TYPE	getViewingMode()
javax.vecmath.Vector3d	helioToEarthEqu(javax.vecmath.Vector3d v) Transform vector from heliocentric coordinate to earth equatorial
javax.vecmath.Point3d	helioToEarthPosEqu(javax.vecmath.Point3d v) Transform vector from heliocentric coordinate to false equatorial : equatorial coordinate but centered on the observer position (usefull for objects close to earth)
(package private) void	helioToLocal(javax.vecmath.Point3d v) Transform vector from heliocentric coordinate to local
javax.vecmath.Point3d	j2000ToEarthEqu(javax.vecmath.Point3d v)
javax.vecmath.Point3d	localToEarthEqu(javax.vecmath.Point3d v) Transform point from local coordinate to equatorial
void	moveTo(javax.vecmath.Point3d aim, float moveDuration) Move to the given equatorial position
(package private) void	moveTo(javax.vecmath.Point3d aim, float moveDuration, boolean localPos, int zooming) Move to the given equatorial position
void	setFlagLockEquPos(boolean v)
void	setFlagTraking(boolean v)
void	setJDay(double jd) Time controls
(package private) void	setLocalVision(javax.vecmath.Point3d pos)
void	setTimeSpeed(double ts)
void	setViewingMode(NavigatorIfc.VIEWING_MODE_TYPE viewMode) Set Type of viewing mode (align with horizon or equatorial coordinates)
(package private) void	switchToEarthEquatorial()
void	switchToHeliocentric() Place openGL in heliocentric ecliptical coordinates
void	switchToLocal() Place openGL in local viewer coordinates (Usually somewhere on earth viewing in a specific direction)
void	switchViewingMode()
(package private) void	updateModelViewMat() Update the modelview matrices
(package private) void	updateMove(double deltaAz, double deltaAlt)
(package private) void	updateTime(int deltaTime) Increment time
void	updateTransformMatrices()
(package private) void	updateVisionVector(int deltaTime, StelObject selected)

Methods inherited from class java.lang.Object

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

Field Detail

mat_j2000_to_vsop87

public static final javax.vecmath.Matrix4d mat_j2000_to_vsop87

mat_vsop87_to_j2000

public static final javax.vecmath.Matrix4d mat_vsop87_to_j2000

matHelioToLocal

private javax.vecmath.Matrix4d matHelioToLocal

Transform from Heliocentric to Observator local coordinate

matLocalToHelio

private javax.vecmath.Matrix4d matLocalToHelio

Transform from Observator local coordinate to Heliocentric

matLocalToEarthEqu

private javax.vecmath.Matrix4d matLocalToEarthEqu

Transform from Observator local coordinate to Earth Equatorial

matEarthEquToLocal

private javax.vecmath.Matrix4d matEarthEquToLocal

Transform from Observator local coordinate to Earth Equatorial

matHelioToEarthEqu

private javax.vecmath.Matrix4d matHelioToEarthEqu

Transform from Heliocentric to earth equatorial coordinate

matEarthEquToJ2000

private javax.vecmath.Matrix4d matEarthEquToJ2000

matJ2000ToEarthEqu

private javax.vecmath.Matrix4d matJ2000ToEarthEqu

matLocalToEye

private javax.vecmath.Matrix4d matLocalToEye

Modelview matrix for observer local drawing

matEarthEquToEye

private javax.vecmath.Matrix4d matEarthEquToEye

Modelview matrix for geocentric equatorial drawing

matJ2000ToEye

private javax.vecmath.Matrix4d matJ2000ToEye

precessed version

matHelioToEye

private javax.vecmath.Matrix4d matHelioToEye

Modelview matrix for heliocentric equatorial drawing

localVision

private javax.vecmath.Point3d localVision

Viewing direction in local and equatorial coordinates

equVision

private javax.vecmath.Point3d equVision

precEquVision

private javax.vecmath.Point3d precEquVision

flagTracking

private boolean flagTracking

Define if the selected object is followed

flagLockEquPos

private boolean flagLockEquPos

Define if the equatorial position is locked

move

private Navigator.AutoMove move

Current auto movement

flagAutoMove

private boolean flagAutoMove

Define if automove is on or off

zoomingMode

private int zoomingMode

0 : undefined, 1 zooming, -1 unzooming

timeSpeed

private double timeSpeed

Positive : forward, Negative : Backward, 1 = 1sec/sec

jDay

private double jDay

Curent time in Julian day

position

private Observator position

viewingMode

private NavigatorIfc.VIEWING_MODE_TYPE viewingMode

defines if view corrects for horizon, or uses equatorial coordinates

Constructor Detail

Navigator

Navigator(Observator obs)
    throws StellariumException

Throws:

StellariumException

Method Detail

getMatVsop87ToJ2000

public javax.vecmath.Matrix4d getMatVsop87ToJ2000()

Specified by:

getMatVsop87ToJ2000 in interface NavigatorIfc

updateVisionVector

void updateVisionVector(int deltaTime,
                        StelObject selected)

setLocalVision

void setLocalVision(javax.vecmath.Point3d pos)

updateMove

void updateMove(double deltaAz,
                double deltaAlt)

updateTime

void updateTime(int deltaTime)

Increment time

Parameters:

deltaTime -

updateTransformMatrices

public void updateTransformMatrices()

updateModelViewMat

void updateModelViewMat()

Update the modelview matrices

getObserverHelioPos

public javax.vecmath.Point3d getObserverHelioPos()

Specified by:

getObserverHelioPos in interface NavigatorIfc

Returns:

the observer heliocentric position

moveTo

public void moveTo(javax.vecmath.Point3d aim,
                   float moveDuration)

Move to the given equatorial position

Parameters:

aim -

moveDuration -

moveTo

void moveTo(javax.vecmath.Point3d aim,
            float moveDuration,
            boolean localPos,
            int zooming)

Move to the given equatorial position

Parameters:

aim -

moveDuration -

localPos -

zooming -

setViewingMode

public void setViewingMode(NavigatorIfc.VIEWING_MODE_TYPE viewMode)

Set Type of viewing mode (align with horizon or equatorial coordinates)

Parameters:

viewMode -

switchViewingMode

public void switchViewingMode()

setJDay

public void setJDay(double jd)

Time controls

Parameters:

jd - Julian Day

getJDay

public double getJDay()

Specified by:

getJDay in interface NavigatorIfc

setTimeSpeed

public void setTimeSpeed(double ts)

getTimeSpeed

public double getTimeSpeed()

setFlagTraking

public void setFlagTraking(boolean v)

getFlagTraking

public boolean getFlagTraking()

setFlagLockEquPos

public void setFlagLockEquPos(boolean v)

getFlagLockEquPos

public boolean getFlagLockEquPos()

getEquVision

javax.vecmath.Point3d getEquVision()

Returns:

The vision direction

getPrecEquVision

public javax.vecmath.Point3d getPrecEquVision()

Specified by:

getPrecEquVision in interface NavigatorIfc

getLocalVision

javax.vecmath.Point3d getLocalVision()

getHomePlanet

public Planet getHomePlanet()

Specified by:

getHomePlanet in interface NavigatorIfc

switchToEarthEquatorial

void switchToEarthEquatorial()

switchToHeliocentric

public void switchToHeliocentric()

Place openGL in heliocentric ecliptical coordinates

switchToLocal

public void switchToLocal()

Place openGL in local viewer coordinates (Usually somewhere on earth viewing in a specific direction)

Specified by:

switchToLocal in interface NavigatorIfc

localToEarthEqu

public javax.vecmath.Point3d localToEarthEqu(javax.vecmath.Point3d v)

Transform point from local coordinate to equatorial

Specified by:

localToEarthEqu in interface NavigatorIfc

earthEquToLocal

public javax.vecmath.Point3d earthEquToLocal(javax.vecmath.Point3d v)

Transform vector from equatorial coordinate to local

Specified by:

earthEquToLocal in interface NavigatorIfc

earthEquToJ2000

javax.vecmath.Point3d earthEquToJ2000(javax.vecmath.Point3d v)

j2000ToEarthEqu

public javax.vecmath.Point3d j2000ToEarthEqu(javax.vecmath.Point3d v)

Specified by:

j2000ToEarthEqu in interface NavigatorIfc

helioToLocal

void helioToLocal(javax.vecmath.Point3d v)

Transform vector from heliocentric coordinate to local

Parameters:

v - the helio pos

helioToEarthEqu

public javax.vecmath.Vector3d helioToEarthEqu(javax.vecmath.Vector3d v)

Transform vector from heliocentric coordinate to earth equatorial

Specified by:

helioToEarthEqu in interface NavigatorIfc

helioToEarthPosEqu

public javax.vecmath.Point3d helioToEarthPosEqu(javax.vecmath.Point3d v)

Transform vector from heliocentric coordinate to false equatorial : equatorial coordinate but centered on the observer position (usefull for objects close to earth)

Specified by:

helioToEarthPosEqu in interface NavigatorIfc

getHelioToEyeMat

public javax.vecmath.Matrix4d getHelioToEyeMat()

Return the modelview matrix for some coordinate systems

Specified by:

getHelioToEyeMat in interface NavigatorIfc

getEarthEquToEyeMat

public javax.vecmath.Matrix4d getEarthEquToEyeMat()

getLocalToEyeMat

public javax.vecmath.Matrix4d getLocalToEyeMat()

Specified by:

getLocalToEyeMat in interface NavigatorIfc

getJ2000ToEyeMat

public javax.vecmath.Matrix4d getJ2000ToEyeMat()

Specified by:

getJ2000ToEyeMat in interface NavigatorIfc

getViewingMode

public NavigatorIfc.VIEWING_MODE_TYPE getViewingMode()