Class BoundingLeaf
- java.lang.Object
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- javax.media.j3d.SceneGraphObject
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- javax.media.j3d.Node
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- javax.media.j3d.Leaf
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- javax.media.j3d.BoundingLeaf
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public class BoundingLeaf extends Leaf
The BoundingLeaf node defines a bounding region object that can be referenced by other nodes to define a region of influence (Fog and Light nodes), an application region (Background, Clip, and Soundscape nodes), or a scheduling region (Sound and Behavior nodes). The bounding region is defined in the local coordinate system of the BoundingLeaf node. A reference to a BoundingLeaf node can be used in place of a locally defined bounds object for any of the aforementioned regions.This allows an application to specify a bounding region in one coordinate system (the local coordinate system of the BoundingLeaf node) other than the local coordinate system of the node that references the bounds. For an example of how this might be used, consider a closed room with a number of track lights. Each light can move independent of the other lights and, as such, needs its own local coordinate system. However, the bounding volume is used by all the lights in the boundary of the room, which doesn't move when the lights move. In this example, the BoundingLeaf node allows the bounding region to be defined in the local coordinate system of the room, rather than in the local coordinate system of a particular light. All lights can then share this single bounding volume.
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Field Summary
Fields Modifier and Type Field Description static int
ALLOW_REGION_READ
Specifies that this BoundingLeaf node allows read access to its bounding region object.static int
ALLOW_REGION_WRITE
Specifies that this BoundingLeaf node allows write access to its bounding region object.-
Fields inherited from class javax.media.j3d.Node
ALLOW_AUTO_COMPUTE_BOUNDS_READ, ALLOW_AUTO_COMPUTE_BOUNDS_WRITE, ALLOW_BOUNDS_READ, ALLOW_BOUNDS_WRITE, ALLOW_COLLIDABLE_READ, ALLOW_COLLIDABLE_WRITE, ALLOW_LOCAL_TO_VWORLD_READ, ALLOW_LOCALE_READ, ALLOW_PARENT_READ, ALLOW_PICKABLE_READ, ALLOW_PICKABLE_WRITE, ENABLE_COLLISION_REPORTING, ENABLE_PICK_REPORTING
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Constructor Summary
Constructors Constructor Description BoundingLeaf()
Constructs a BoundingLeaf node with a null (empty) bounding region.BoundingLeaf(Bounds region)
Constructs a BoundingLeaf node with the specified bounding region.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description Node
cloneNode(boolean forceDuplicate)
Used to create a new instance of the node.Bounds
getRegion()
Retrieves this BoundingLeaf's bounding region.void
setRegion(Bounds region)
Sets this BoundingLeaf node's bounding region.-
Methods inherited from class javax.media.j3d.Node
cloneTree, cloneTree, cloneTree, cloneTree, cloneTree, cloneTree, duplicateNode, getBounds, getBoundsAutoCompute, getCollidable, getLocale, getLocalToVworld, getLocalToVworld, getParent, getPickable, setBounds, setBoundsAutoCompute, setCollidable, setPickable
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Methods inherited from class javax.media.j3d.SceneGraphObject
clearCapability, clearCapabilityIsFrequent, duplicateSceneGraphObject, getCapability, getCapabilityIsFrequent, getName, getUserData, isCompiled, isLive, setCapability, setCapabilityIsFrequent, setName, setUserData, toString, updateNodeReferences
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Field Detail
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ALLOW_REGION_READ
public static final int ALLOW_REGION_READ
Specifies that this BoundingLeaf node allows read access to its bounding region object.- See Also:
- Constant Field Values
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ALLOW_REGION_WRITE
public static final int ALLOW_REGION_WRITE
Specifies that this BoundingLeaf node allows write access to its bounding region object.- See Also:
- Constant Field Values
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Constructor Detail
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BoundingLeaf
public BoundingLeaf()
Constructs a BoundingLeaf node with a null (empty) bounding region.
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BoundingLeaf
public BoundingLeaf(Bounds region)
Constructs a BoundingLeaf node with the specified bounding region.- Parameters:
region
- the bounding region of this leaf node
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Method Detail
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setRegion
public void setRegion(Bounds region)
Sets this BoundingLeaf node's bounding region.- Parameters:
region
- the bounding region of this leaf node- Throws:
CapabilityNotSetException
- if appropriate capability is not set and this object is part of live or compiled scene graph
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getRegion
public Bounds getRegion()
Retrieves this BoundingLeaf's bounding region.- Returns:
- the bounding region of this leaf node
- Throws:
CapabilityNotSetException
- if appropriate capability is not set and this object is part of live or compiled scene graph
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cloneNode
public Node cloneNode(boolean forceDuplicate)
Used to create a new instance of the node. This routine is called bycloneTree
to duplicate the current node.- Overrides:
cloneNode
in classNode
- Parameters:
forceDuplicate
- when set totrue
, causes theduplicateOnCloneTree
flag to be ignored. Whenfalse
, the value of each node'sduplicateOnCloneTree
variable determines whether NodeComponent data is duplicated or copied.- See Also:
Node.cloneTree()
,Node.cloneNode(boolean)
,Node.duplicateNode(javax.media.j3d.Node, boolean)
,NodeComponent.setDuplicateOnCloneTree(boolean)
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