org.stellarium.astro
Class Meteor

java.lang.Object
  org.stellarium.astro.Meteor

 class Meteor
extends java.lang.Object

Field Summary

private double	absMag absolute magnitude
private boolean	alive Is it still visible?
private double	distMultiplier scale magnitude due to changes in distance
(package private) static double	EARTH_RADIUS
private double	endH End height
(package private) static double	HIGH_ALTITUDE
private double	initDist initial distance from observer
(package private) static double	LOW_ALTITUDE
private double	mag Apparent magnitude at head, 0-1
private double	maxMag 0-1
private double	minDist nearest point to observer along path
private javax.vecmath.Matrix4d	mmat Tranformation matrix to align radiant with earth direction of travel
private javax.vecmath.Point3d	obs Observer position in meteor coord. system
private javax.vecmath.Point3d	posInternal Middle of train
private javax.vecmath.Point3d	position Equatorial coordinate position
private javax.vecmath.Point3d	posTrain End of train
private double	startH Start height above center of earth
private boolean	train Point or train visible?
private double	velocity km/s
(package private) static double	VISIBLE_RADIUS
private double	visMag visual magnitude at observer
private double	xyDistance distance in XY plane (orthogonal to meteor path) from observer to meteor

Constructor Summary

Meteor(DefaultProjector proj, NavigatorIfc nav, ToneReproductor eye, double v)

Method Summary

(package private) boolean	draw(DefaultProjector proj, Navigator nav) returns true if visible
(package private) boolean	isAlive()
(package private) boolean	update(int deltaTime) returns true if alive

Methods inherited from class java.lang.Object

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

Field Detail

EARTH_RADIUS

static final double EARTH_RADIUS

See Also:

Constant Field Values

HIGH_ALTITUDE

static final double HIGH_ALTITUDE

See Also:

Constant Field Values

LOW_ALTITUDE

static final double LOW_ALTITUDE

See Also:

Constant Field Values

VISIBLE_RADIUS

static final double VISIBLE_RADIUS

See Also:

Constant Field Values

mmat

private javax.vecmath.Matrix4d mmat

Tranformation matrix to align radiant with earth direction of travel

obs

private javax.vecmath.Point3d obs

Observer position in meteor coord. system

position

private javax.vecmath.Point3d position

Equatorial coordinate position

posInternal

private javax.vecmath.Point3d posInternal

Middle of train

posTrain

private javax.vecmath.Point3d posTrain

End of train

train

private boolean train

Point or train visible?

startH

private double startH

Start height above center of earth

endH

private double endH

End height

velocity

private double velocity

km/s

alive

private boolean alive

Is it still visible?

mag

private double mag

Apparent magnitude at head, 0-1

maxMag

private double maxMag

0-1

absMag

private double absMag

absolute magnitude

visMag

private double visMag

visual magnitude at observer

xyDistance

private double xyDistance

distance in XY plane (orthogonal to meteor path) from observer to meteor

initDist

private double initDist

initial distance from observer

minDist

private double minDist

nearest point to observer along path

distMultiplier

private double distMultiplier

scale magnitude due to changes in distance

Constructor Detail

Meteor

Meteor(DefaultProjector proj,
       NavigatorIfc nav,
       ToneReproductor eye,
       double v)

Method Detail

update

boolean update(int deltaTime)

returns true if alive

Parameters:

deltaTime -

Returns:

draw

boolean draw(DefaultProjector proj,
             Navigator nav)

returns true if visible

Parameters:

proj -

nav -

Returns:

isAlive

boolean isAlive()