Package gaiasky.scenegraph

Class AbstractSceneGraph

java.lang.Object

gaiasky.scenegraph.AbstractSceneGraph

All Implemented Interfaces:

com.badlogic.gdx.utils.Disposable, ISceneGraph

Direct Known Subclasses:

SceneGraph

public abstract class AbstractSceneGraph
extends java.lang.Object
implements ISceneGraph

Field Summary

Fields

Modifier and Type	Field	Description
protected boolean	hasOctree	Does it contain an octree
protected boolean	hasStarGroup	Does it contain a star group
protected java.util.Map<java.lang.Integer,IPosition>	hipMap	Map from integer to position with all Hipparcos stars, for the constellations
protected int[]	objectsPerThread	Number of objects per thread
SceneGraphNode	root	The root of the tree
protected java.util.Map<java.lang.String,SceneGraphNode>	stringToNode	Quick lookup map.

Constructor Summary

Constructors

Constructor	Description
AbstractSceneGraph()

Method Summary

Modifier and Type	Method	Description
void	addNodeAuxiliaryInfo(SceneGraphNode node)	Updates the string to node map and the star map if necessary.
protected void	addToIndex(SceneGraphNode node, java.util.Map<java.lang.String,SceneGraphNode> map)
boolean	containsNode(java.lang.String name)	Whether this scene graphs contains a node with the given name
void	dispose()
IFocus	findFocus(java.lang.String name)
com.badlogic.gdx.utils.Array<IFocus>	getFocusableObjects()
int	getNObjects()
SceneGraphNode	getNode(java.lang.String name)	Returns the node with the given name, or null if it does not exist.
com.badlogic.gdx.utils.Array<SceneGraphNode>	getNodes()
double[]	getObjectPosition(java.lang.String name, double[] out)	Gets the current position of the object identified by the given name.
SceneGraphNode	getRoot()
int	getSize()
java.util.Map<java.lang.Integer,IPosition>	getStarMap()	Gets a star map: HIP -> IPosition It only contains the stars with HIP number
void	initialize(com.badlogic.gdx.utils.Array<SceneGraphNode> nodes, ITimeFrameProvider time, boolean hasOctree, boolean hasStarGroup)	Builds the scene graph using the given nodes.
void	insert(SceneGraphNode node, boolean addToIndex)	Inserts a node
void	remove(SceneGraphNode node, boolean removeFromIndex)	Removes a node
void	removeNodeAuxiliaryInfo(SceneGraphNode node)	Removes the info of the node from the aux lists.

Methods inherited from class java.lang.Object

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

Methods inherited from interface gaiasky.scenegraph.ISceneGraph

update

Field Detail

root

public SceneGraphNode root

The root of the tree

stringToNode

protected java.util.Map<java.lang.String,SceneGraphNode> stringToNode

Quick lookup map. Name to node.

hipMap

protected java.util.Map<java.lang.Integer,IPosition> hipMap

Map from integer to position with all Hipparcos stars, for the constellations

objectsPerThread

protected int[] objectsPerThread

Number of objects per thread

hasOctree

protected boolean hasOctree

Does it contain an octree

hasStarGroup

protected boolean hasStarGroup

Does it contain a star group

Constructor Detail

AbstractSceneGraph

public AbstractSceneGraph()

Method Detail

initialize

public void initialize(com.badlogic.gdx.utils.Array<SceneGraphNode> nodes,
                       ITimeFrameProvider time,
                       boolean hasOctree,
                       boolean hasStarGroup)

Builds the scene graph using the given nodes.

Specified by:

initialize in interface ISceneGraph

Parameters:

nodes - The list of nodes

time - The time provider

hasOctree - Whether the list of nodes contains an octree

hasStarGroup - Whether the list contains a star group

insert

public void insert(SceneGraphNode node,
                   boolean addToIndex)

Description copied from interface: ISceneGraph

Inserts a node

Specified by:

insert in interface ISceneGraph

Parameters:

node - The node to add

addToIndex - Whether to add the ids of this node to the index

remove

public void remove(SceneGraphNode node,
                   boolean removeFromIndex)

Description copied from interface: ISceneGraph

Removes a node

Specified by:

remove in interface ISceneGraph

Parameters:

node - The node to remove

removeFromIndex - Whether to remove the ids of this node from the index

addToIndex

protected void addToIndex(SceneGraphNode node,
                          java.util.Map<java.lang.String,SceneGraphNode> map)

addNodeAuxiliaryInfo

public void addNodeAuxiliaryInfo(SceneGraphNode node)

Description copied from interface: ISceneGraph

Updates the string to node map and the star map if necessary.

Specified by:

addNodeAuxiliaryInfo in interface ISceneGraph

Parameters:

node - The node to add

removeNodeAuxiliaryInfo

public void removeNodeAuxiliaryInfo(SceneGraphNode node)

Description copied from interface: ISceneGraph

Removes the info of the node from the aux lists.

Specified by:

removeNodeAuxiliaryInfo in interface ISceneGraph

Parameters:

node - The node to remove

containsNode

public boolean containsNode(java.lang.String name)

Description copied from interface: ISceneGraph

Whether this scene graphs contains a node with the given name

Specified by:

containsNode in interface ISceneGraph

Parameters:

name - The name

Returns:

True if this scene graph contains the node, false otherwise

getNode

public SceneGraphNode getNode(java.lang.String name)

Description copied from interface: ISceneGraph

Returns the node with the given name, or null if it does not exist.

Specified by:

getNode in interface ISceneGraph

Parameters:

name - The name of the node.

Returns:

The node with the name.

getNodes

public com.badlogic.gdx.utils.Array<SceneGraphNode> getNodes()

Specified by:

getNodes in interface ISceneGraph

getFocusableObjects

public com.badlogic.gdx.utils.Array<IFocus> getFocusableObjects()

Specified by:

getFocusableObjects in interface ISceneGraph

findFocus

public IFocus findFocus(java.lang.String name)

Specified by:

findFocus in interface ISceneGraph

getSize

public int getSize()

Specified by:

getSize in interface ISceneGraph

dispose

public void dispose()

Specified by:

dispose in interface com.badlogic.gdx.utils.Disposable

getRoot

public SceneGraphNode getRoot()

Specified by:

getRoot in interface ISceneGraph

getStarMap

public java.util.Map<java.lang.Integer,IPosition> getStarMap()

Description copied from interface: ISceneGraph

Gets a star map: HIP -> IPosition It only contains the stars with HIP number

Specified by:

getStarMap in interface ISceneGraph

Returns:

The HIP star map

getNObjects

public int getNObjects()

getObjectPosition

public double[] getObjectPosition(java.lang.String name,
                                  double[] out)

Description copied from interface: ISceneGraph

Gets the current position of the object identified by the given name. The given position is in the internal reference system and corrects stars for proper motions and other objects for their specific motions as well.

Specified by:

getObjectPosition in interface ISceneGraph

Parameters:

name - The name of the object

out - The out double array

Returns:

The out double array if the object exists, has a position and out has 3 or more slots. Null otherwise.