Package gaiasky.scenegraph

Class StarCluster

java.lang.Object

gaiasky.scenegraph.SceneGraphNode

gaiasky.scenegraph.StarCluster

All Implemented Interfaces:

com.badlogic.gdx.utils.Disposable, I3DTextRenderable, IModelRenderable, IQuadRenderable, IRenderable, IFocus, IProperMotion, IStarContainer, IPosition

public class StarCluster
extends SceneGraphNode
implements IFocus, IProperMotion, IModelRenderable, I3DTextRenderable, IQuadRenderable

Field Summary

Fields

Modifier and Type	Field	Description
protected double	dist
protected float	fadeAlpha	Fade alpha between quad and model.
protected float[]	labelcolor
protected int	nstars
protected Vector3d	pm	Proper motion in units/year
protected com.badlogic.gdx.math.Vector3	pmSph	Proper motion in mas/year
protected double	raddeg
protected double	ySinceEpoch

Fields inherited from class gaiasky.scenegraph.SceneGraphNode

aux3d1, aux3d2, aux3d3, aux3d4, aux3f1, aux3f2, aux3f3, aux3f4, cc, children, computed, coordinates, copy, ct, distToCamera, id, localTransform, namekey, names, numChildren, octant, octantId, opacity, orientation, parent, parentkey, parentName, pos, posSph, ROOT_NAME, sg, size, translation, viewAngle, viewAngleApparent

Constructor Summary

Constructors

Constructor	Description
StarCluster()
StarCluster(java.lang.String[] names, java.lang.String parentName, Vector3d pos, Vector3d pm, Vector3d posSph, com.badlogic.gdx.math.Vector3 pmSph, double raddeg, int nstars)
StarCluster(java.lang.String[] names, java.lang.String parentName, Vector3d pos, Vector3d pm, Vector3d posSph, com.badlogic.gdx.math.Vector3 pmSph, double raddeg, int nstars, float[] color)

Method Summary

Modifier and Type	Method	Description
void	addFocusableObjects(com.badlogic.gdx.utils.Array<IFocus> list)	Adds all the children that are focusable objects to the list.
void	addHit(int screenX, int screenY, int w, int h, int pxdist, NaturalCamera camera, com.badlogic.gdx.utils.Array<IFocus> hits)	Adds this focus to the hits list if it is hit by the [screenX, screenY] position
void	addHit(Vector3d p0, Vector3d p1, NaturalCamera camera, com.badlogic.gdx.utils.Array<IFocus> hits)	Adds this focus to the hits list if it is hit by the given ray
protected void	addToRenderLists(ICamera camera)	Adds this entity to the necessary render lists after the distance to the camera and the view angle have been determined.
protected boolean	checkClickDistance(int screenX, int screenY, com.badlogic.gdx.math.Vector3 pos, NaturalCamera camera, com.badlogic.gdx.graphics.PerspectiveCamera pcamera, double pixelSize)
void	doneLoading(com.badlogic.gdx.assets.AssetManager manager)
float	getAbsmag()	Gets the absolute magnitude
Vector3d	getAbsolutePosition(Vector3d aux)	Returns the absolute position of this entity in the native coordinates (equatorial system) and internal units
float	getAppmag()	Gets the apparent magnitude
long	getCandidateId()	Returns the id of the focus candidate of this object.
java.lang.String	getCandidateName()	Returns the name of the focus candidate of this object.
double	getCandidateViewAngleApparent()	Returns the candidate apparent view angle (view angle corrected with the field of view) of this entity, in radians
Vector3d	getClosestAbsolutePos(Vector3d out)	Same as IFocus.getAbsolutePosition(Vector3d)
double	getClosestDistToCamera()	Same as IFocus.getDistToCamera()
java.lang.String	getClosestName()	Same as IFocus.getName()
IFocus	getFocus(java.lang.String name)	Prepares the candidate with the given name
double	getMuAlpha()	Returns the mu alpha in mas/yr
double	getMuDelta()	Returns the mu delta in mas/yr
int	getNStars()
Quaterniond	getOrientationQuaternion()	Returns the orientation quaternion of this focus
double	getRadialVelocity()	Returns the radial velocity in km/s
RotationComponent	getRotationComponent()	Returns the rotation component of this focus
<T extends SceneGraphNode> T	getSimpleCopy()	Gets a copy of this object but does not copy its parent or children
float	getTextOpacity()	Gets the text opacity
boolean	hasAtmosphere()
void	initialize()
void	initModel()
boolean	isActive()	Returns whether this focus object is active or not.
boolean	isCoordinatesTimeOverflow()	Checks whether this foucs is within its valid time range, so that it can be used as a focus
boolean	isLabel()	Is it a label or another kind of text?
void	makeFocus()	Hook that runs when the candidate is actually made focus
void	render(ExtSpriteBatch batch, ExtShaderProgram shader, FontRenderSystem sys, RenderingContext rc, ICamera camera)	Label rendering
void	render(IntModelBatch modelBatch, float alpha, double t, RenderingContext rc)	Model rendering
void	render(ExtShaderProgram shader, float alpha, IntMesh mesh, ICamera camera)	Billboard quad rendering
boolean	renderText()	Tells whether the text must be rendered or not for this entity
void	setColor(double[] color)
void	setColor(float[] color)
void	setLabelcolor(double[] labelcolor)
void	setLabelcolor(float[] labelcolor)
java.lang.String	text()	Returns the text
float[]	textColour()	Returns an array with the text colour in the fashion [r, g, b, a]
void	textDepthBuffer()	Executes the blending for the text
void	textPosition(ICamera cam, Vector3d out)	Sets the position of this text in the out vector
float	textScale()	Returns the text scale for the scale varying in the shader
float	textSize()	Returns the text size
void	updateLocal(ITimeFrameProvider time, ICamera camera)	Updates the local transform matrix.
void	updateLocalValues(ITimeFrameProvider time, ICamera camera)	This function updates all the local values before the localTransform is updated.

Methods inherited from class gaiasky.scenegraph.SceneGraphNode

add, add, addChild, addChild, addName, addNodes, addToIndex, addToRender, computeFuturePosition, dispose, getAbsoluteOrientation, getAbsolutePosition, getAggregatedChildren, getAlpha, getChildByName, getChildByNameAndType, getChildrenByType, getComponentType, getCt, getDelta, getDistToCamera, getFirstStarAncestor, getHeight, getHeight, getHeight, getHeightScale, getId, getLineCopy, getName, getNames, getNext, getNode, getNode, getOctant, getOpacity, getOrientation, getPos, getPosition, getPosition, getPosSph, getPredictedPosition, getRadius, getRoot, getSceneGraphDepth, getSize, getStarCount, getUnrotatedPos, getVelocity, getViewAngle, getViewAngleApparent, hasName, hasName, insert, insert, isCopy, isInRender, isInRender, isValidPosition, isVisibilityOn, mustAddToIndex, mustUpdatePosition, namesConcat, removeChild, removeFromIndex, removeFromRender, render2DLabel, render2DLabel, render2DLabel, render2DLabel, render3DLabel, render3DLabel, returnToPool, setComputedFlag, setCoordinates, setCt, setCt, setId, setName, setNamekey, setNames, setParent, setParentkey, setSize, setSize, setUp, toString, update, update, updateNames, updateNamesRec

Methods inherited from class java.lang.Object

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

Methods inherited from interface gaiasky.scenegraph.IFocus

getAbsolutePosition, getAlpha, getCt, getDelta, getDistToCamera, getFirstStarAncestor, getHeight, getHeight, getHeight, getHeightScale, getId, getName, getNames, getNext, getOctant, getOrientation, getPos, getPosSph, getPredictedPosition, getRadius, getSceneGraphDepth, getSize, getViewAngle, getViewAngleApparent, hasName, hasName, isCopy

Methods inherited from interface gaiasky.render.IRenderable

getComponentType, getDistToCamera, getOpacity

Field Details

pm

protected Vector3d pm

Proper motion in units/year

pmSph

protected com.badlogic.gdx.math.Vector3 pmSph

Proper motion in mas/year

labelcolor

protected float[] labelcolor

dist

protected double dist

raddeg

protected double raddeg

nstars

protected int nstars

ySinceEpoch

protected double ySinceEpoch

fadeAlpha

protected float fadeAlpha

Fade alpha between quad and model. Attribute contains model opacity. Quad opacity is 1-fadeAlpha

Constructor Details

StarCluster

public StarCluster()

StarCluster

public StarCluster(java.lang.String[] names,
java.lang.String parentName,
Vector3d pos,
Vector3d pm,
Vector3d posSph,
com.badlogic.gdx.math.Vector3 pmSph,
double raddeg,
int nstars)

StarCluster

public StarCluster(java.lang.String[] names,
java.lang.String parentName,
Vector3d pos,
Vector3d pm,
Vector3d posSph,
com.badlogic.gdx.math.Vector3 pmSph,
double raddeg,
int nstars,
float[] color)

Method Details

initModel

public void initModel()

initialize

public void initialize()

Overrides:

initialize in class SceneGraphNode

doneLoading

public void doneLoading(com.badlogic.gdx.assets.AssetManager manager)

Overrides:

doneLoading in class SceneGraphNode

setColor

public void setColor(double[] color)

Overrides:

setColor in class SceneGraphNode

setColor

public void setColor(float[] color)

Overrides:

setColor in class SceneGraphNode

setLabelcolor

public void setLabelcolor(double[] labelcolor)

Overrides:

setLabelcolor in class SceneGraphNode

setLabelcolor

public void setLabelcolor(float[] labelcolor)

Overrides:

setLabelcolor in class SceneGraphNode

updateLocal

public void updateLocal(ITimeFrameProvider time,
ICamera camera)

Updates the local transform matrix.

Overrides:

updateLocal in class SceneGraphNode

Parameters:

time -

updateLocalValues

public void updateLocalValues(ITimeFrameProvider time,
ICamera camera)

Description copied from class: SceneGraphNode

This function updates all the local values before the localTransform is updated. Position, rotations and scale must be updated in here.

Overrides:

updateLocalValues in class SceneGraphNode

addToRenderLists

protected void addToRenderLists(ICamera camera)

Description copied from class: SceneGraphNode

Adds this entity to the necessary render lists after the distance to the camera and the view angle have been determined.

Overrides:

addToRenderLists in class SceneGraphNode

getAbsolutePosition

public Vector3d getAbsolutePosition(Vector3d aux)

Description copied from class: SceneGraphNode

Returns the absolute position of this entity in the native coordinates (equatorial system) and internal units

Specified by:

getAbsolutePosition in interface IFocus

Overrides:

getAbsolutePosition in class SceneGraphNode

Parameters:

aux - Auxiliary vector to put the result in

Returns:

The vector with the position

render

public void render(IntModelBatch modelBatch,
float alpha,
double t,
RenderingContext rc)

Model rendering

Specified by:

render in interface IModelRenderable

render

public void render(ExtShaderProgram shader,
float alpha,
IntMesh mesh,
ICamera camera)

Billboard quad rendering

Specified by:

render in interface IQuadRenderable

render

public void render(ExtSpriteBatch batch,
ExtShaderProgram shader,
FontRenderSystem sys,
RenderingContext rc,
ICamera camera)

Label rendering

Specified by:

render in interface I3DTextRenderable

Parameters:

batch - The sprite batch

shader - The shader

sys - The font render system

rc - The render context

camera - The camera

hasAtmosphere

public boolean hasAtmosphere()

Specified by:

hasAtmosphere in interface IModelRenderable

renderText

public boolean renderText()

Description copied from interface: I3DTextRenderable

Tells whether the text must be rendered or not for this entity

Specified by:

renderText in interface I3DTextRenderable

Returns:

True if text must be rendered

textColour

public float[] textColour()

Description copied from interface: I3DTextRenderable

Returns an array with the text colour in the fashion [r, g, b, a]

Specified by:

textColour in interface I3DTextRenderable

Returns:

Array with the colour

textSize

public float textSize()

Description copied from interface: I3DTextRenderable

Returns the text size

Specified by:

textSize in interface I3DTextRenderable

Returns:

The text size

textScale

public float textScale()

Description copied from interface: I3DTextRenderable

Returns the text scale for the scale varying in the shader

Specified by:

textScale in interface I3DTextRenderable

Returns:

The scale

textPosition

public void textPosition(ICamera cam,
Vector3d out)

Description copied from interface: I3DTextRenderable

Sets the position of this text in the out vector

Specified by:

textPosition in interface I3DTextRenderable

out - The out parameter with the result

text

public java.lang.String text()

Description copied from interface: I3DTextRenderable

Returns the text

Specified by:

text in interface I3DTextRenderable

Returns:

The text

textDepthBuffer

public void textDepthBuffer()

Description copied from interface: I3DTextRenderable

Executes the blending for the text

Specified by:

textDepthBuffer in interface I3DTextRenderable

isLabel

public boolean isLabel()

Description copied from interface: I3DTextRenderable

Is it a label or another kind of text?

Specified by:

isLabel in interface I3DTextRenderable

Returns:

Whether this is a label

getCandidateId

public long getCandidateId()

Description copied from interface: IFocus

Returns the id of the focus candidate of this object. Defaults to IFocus.getId()

Specified by:

getCandidateId in interface IFocus

Returns:

The id of the candidate

getCandidateName

public java.lang.String getCandidateName()

Description copied from interface: IFocus

Returns the name of the focus candidate of this object. Defaults to IFocus.getName()

Specified by:

getCandidateName in interface IFocus

Returns:

The name of the candidate

isActive

public boolean isActive()

Description copied from interface: IFocus

Returns whether this focus object is active or not. Useful for particle groups

Specified by:

isActive in interface IFocus

Returns:

The active status

addFocusableObjects

public void addFocusableObjects(com.badlogic.gdx.utils.Array<IFocus> list)

Adds all the children that are focusable objects to the list.

Overrides:

addFocusableObjects in class SceneGraphNode

Parameters:

list -

getCandidateViewAngleApparent

public double getCandidateViewAngleApparent()

Description copied from interface: IFocus

Returns the candidate apparent view angle (view angle corrected with the field of view) of this entity, in radians

Specified by:

getCandidateViewAngleApparent in interface IFocus

Returns:

The apparent view angle in radians

getAppmag

public float getAppmag()

Description copied from interface: IFocus

Gets the apparent magnitude

Specified by:

getAppmag in interface IFocus

Returns:

The apparent magnitude

getAbsmag

public float getAbsmag()

Description copied from interface: IFocus

Gets the absolute magnitude

Specified by:

getAbsmag in interface IFocus

Returns:

The absolute magnitude

getRotationComponent

public RotationComponent getRotationComponent()

Description copied from interface: IFocus

Returns the rotation component of this focus

Specified by:

getRotationComponent in interface IFocus

Returns:

The rotation component. Can be null

getOrientationQuaternion

public Quaterniond getOrientationQuaternion()

Description copied from interface: IFocus

Returns the orientation quaternion of this focus

Specified by:

getOrientationQuaternion in interface IFocus

Returns:

The orientation quaternion. Can be null

addHit

public void addHit(int screenX,
int screenY,
int w,
int h,
int pxdist,
NaturalCamera camera,
com.badlogic.gdx.utils.Array<IFocus> hits)

Description copied from interface: IFocus

Adds this focus to the hits list if it is hit by the [screenX, screenY] position

Specified by:

addHit in interface IFocus

Parameters:

screenX - The x position of the hit

screenY - The y position of the hit

w - The viewport width

h - The viewport height

pxdist - The minimum pixel distance to consider as hit

camera - The camera

hits - The list where to add the element

addHit

public void addHit(Vector3d p0,
Vector3d p1,
NaturalCamera camera,
com.badlogic.gdx.utils.Array<IFocus> hits)

Description copied from interface: IFocus

Adds this focus to the hits list if it is hit by the given ray

Specified by:

addHit in interface IFocus

Parameters:

p0 - Start point of the ray

p1 - End point of the ray

camera - The camera

hits - The list where the focus is to be added

checkClickDistance

protected boolean checkClickDistance(int screenX,
int screenY,
com.badlogic.gdx.math.Vector3 pos,
NaturalCamera camera,
com.badlogic.gdx.graphics.PerspectiveCamera pcamera,
double pixelSize)

makeFocus

public void makeFocus()

Description copied from interface: IFocus

Hook that runs when the candidate is actually made focus

Specified by:

makeFocus in interface IFocus

getFocus

public IFocus getFocus(java.lang.String name)

Description copied from interface: IFocus

Prepares the candidate with the given name

Specified by:

getFocus in interface IFocus

Parameters:

name - The name in lower case

getClosestName

public java.lang.String getClosestName()

Description copied from interface: IFocus

Same as IFocus.getName()

Specified by:

getClosestName in interface IFocus

Returns:

The name

getClosestDistToCamera

public double getClosestDistToCamera()

Description copied from interface: IFocus

Same as IFocus.getDistToCamera()

Specified by:

getClosestDistToCamera in interface IFocus

Returns:

The distance to the camera in internal units

getClosestAbsolutePos

public Vector3d getClosestAbsolutePos(Vector3d out)

Description copied from interface: IFocus

Same as IFocus.getAbsolutePosition(Vector3d)

Specified by:

getClosestAbsolutePos in interface IFocus

Parameters:

out - Vector3d where to put the return value

Returns:

The absolute position, same as aux

isCoordinatesTimeOverflow

public boolean isCoordinatesTimeOverflow()

Description copied from interface: IFocus

Checks whether this foucs is within its valid time range, so that it can be used as a focus

Specified by:

isCoordinatesTimeOverflow in interface IFocus

Returns:

Whether the focus object is within its valid time range

getMuAlpha

public double getMuAlpha()

Description copied from interface: IProperMotion

Returns the mu alpha in mas/yr

Specified by:

getMuAlpha in interface IProperMotion

Returns:

The mu alpha in mas/yr

getMuDelta

public double getMuDelta()

Description copied from interface: IProperMotion

Returns the mu delta in mas/yr

Specified by:

getMuDelta in interface IProperMotion

Returns:

The mu delta in mas/yr

getRadialVelocity

public double getRadialVelocity()

Description copied from interface: IProperMotion

Returns the radial velocity in km/s

Specified by:

getRadialVelocity in interface IProperMotion

Returns:

The radial velocity in km/s

getNStars

public int getNStars()

getTextOpacity

public float getTextOpacity()

Description copied from interface: I3DTextRenderable

Gets the text opacity

Specified by:

getTextOpacity in interface I3DTextRenderable

Returns:

Text opacity

getSimpleCopy

public <T extends SceneGraphNode> T getSimpleCopy()

Description copied from class: SceneGraphNode

Gets a copy of this object but does not copy its parent or children

Overrides:

getSimpleCopy in class SceneGraphNode

Returns:

The copied object