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java.lang.Object | +--javax.media.j3d.SceneGraphObject | +--javax.media.j3d.Node | +--javax.media.j3d.Leaf | +--javax.media.j3d.Behavior | +--javax.media.j3d.Interpolator | +--javax.media.j3d.PathInterpolator | +--javax.media.j3d.RotPosScalePathInterpolator
RotPosScalePathInterpolation behavior. This class defines a behavior that varies the rotational, translational, and scale components of its target TransformGroup by linearly interpolating among a series of predefined knot/position, knot/orientation, and knot/scale pairs (using the value generated by the specified Alpha object). The interpolated position, orientation, and scale are used to generate a transform in the local coordinate system of this interpolator. The first knot must have a value of 0.0. The last knot must have a value of 1.0. An intermediate knot with index k must have a value strictly greater than any knot with index less than k.
Fields inherited from class javax.media.j3d.PathInterpolator |
currentInterpolationValue,
currentKnotIndex |
Fields inherited from class javax.media.j3d.Interpolator |
defaultWakeupCriterion |
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_PICK,
ALLOW_PICKABLE_READ,
ALLOW_PICKABLE_WRITE,
ENABLE_COLLISION_REPORTING,
ENABLE_PICK_REPORTING |
Constructor Summary | |
RotPosScalePathInterpolator(Alpha alpha,
TransformGroup target,
Transform3D axisOfRotPosScale,
float[] knots,
Quat4f[] quats,
Point3f[] positions,
float[] scales)
Constructs a new RotPosScalePathInterpolator object that varies the rotation, translation, and scale of the target TransformGroup's transform. |
Method Summary | |
Node |
cloneNode(boolean forceDuplicate)
Used to create a new instance of the node. |
void |
duplicateNode(Node originalNode,
boolean forceDuplicate)
Copies all node information from originalNode into
the current node. |
Transform3D |
getAxisOfRotPosScale()
This method retrieves this interpolator's axis of rotation, translation, and scale. |
void |
getPosition(int index,
Point3f position)
This method retrieves the position value at the specified index. |
void |
getQuat(int index,
Quat4f quat)
This method retrieve the quat value at the specified index. |
float |
getScale(int index)
This method retrieves the scale at the specified index. |
TransformGroup |
getTarget()
This method retrieves this interpolator's target TransformGroup reference. |
void |
processStimulus(java.util.Enumeration criteria)
This method is invoked by the behavior scheduler every frame. |
void |
setAxisOfRotPosScale(Transform3D axisOfRotPosScale)
This method sets the axis of rotation, translation, and scale for this interpolator, RotPosScale, which defines the local coordinate system in which this interpolator operates. |
void |
setPosition(int index,
Point3f position)
This method sets the position value at the specified index for this interpolator. |
void |
setQuat(int index,
Quat4f quat)
This method sets the quat value at the specified index for this interpolator. |
void |
setScale(int index,
float scale)
This method sets the scale at the specified index for this interpolator. |
void |
setTarget(TransformGroup target)
This method sets the target TransformGroup for this interpolator. |
void |
updateNodeReferences(NodeReferenceTable referenceTable)
Callback used to allow a node to check if any scene graph objects referenced by that node have been duplicated via a call to cloneTree . |
Methods inherited from class javax.media.j3d.PathInterpolator |
computePathInterpolation,
getArrayLengths,
getKnot,
setKnot |
Methods inherited from class javax.media.j3d.Interpolator |
getAlpha,
initialize,
setAlpha |
Methods inherited from class javax.media.j3d.Behavior |
getEnable,
getSchedulingBoundingLeaf,
getSchedulingBounds,
getView,
postId,
setEnable,
setSchedulingBoundingLeaf,
setSchedulingBounds,
wakeupOn |
Methods inherited from class javax.media.j3d.Node |
cloneTree,
cloneTree,
cloneTree,
getBounds,
getBoundsAutoCompute,
getCollidable,
getLocalToVworld,
getLocalToVworld,
getParent,
getPickable,
setBounds,
setBoundsAutoCompute,
setCollidable,
setPickable |
Methods inherited from class javax.media.j3d.SceneGraphObject |
clearCapability,
duplicateSceneGraphObject,
getCapability,
getUserData,
isCompiled,
isLive,
setCapability,
setUserData |
Methods inherited from class java.lang.Object |
clone,
equals,
finalize,
getClass,
hashCode,
notify,
notifyAll,
toString,
wait,
wait,
wait |
Constructor Detail |
public RotPosScalePathInterpolator(Alpha alpha, TransformGroup target, Transform3D axisOfRotPosScale, float[] knots, Quat4f[] quats, Point3f[] positions, float[] scales)
alpha
- the alpha object for this interpolatortarget
- the TransformGroup node affected by this interpolatoraxisOfRotPosScale
- the transform that specifies the local
coordinate system in which this interpolator operatesknots
- an array of knot values that specify a splinequats
- an array of quaternion values at the knotspositions
- an array of position values at the knotsscales
- an array of scale component valuesMethod Detail |
public void setScale(int index, float scale)
index
- the index to be changedscale
- the new scale at indexpublic float getScale(int index)
index
- the index of the value requestedpublic void setQuat(int index, Quat4f quat)
index
- the index to be changedquat
- the new quat value at indexpublic void getQuat(int index, Quat4f quat)
index
- the index of the value requestedpublic void setPosition(int index, Point3f position)
index
- the index to be changedposition
- the new position value at indexpublic void getPosition(int index, Point3f position)
index
- the index of the value requestedpublic void setAxisOfRotPosScale(Transform3D axisOfRotPosScale)
axisOfRotPosScale
- the interpolators axis of RotPosScalepublic Transform3D getAxisOfRotPosScale()
public void setTarget(TransformGroup target)
target
- the target TransformGroup referencepublic TransformGroup getTarget()
public void processStimulus(java.util.Enumeration criteria)
criteria
- enumeration of criteria that have triggered this wakeuppublic Node cloneNode(boolean forceDuplicate)
cloneTree
to duplicate the current node.forceDuplicate
- when set to true
, causes the
duplicateOnCloneTree
flag to be ignored. When
false
, the value of each node's
duplicateOnCloneTree
variable determines whether
NodeComponent data is duplicated or copied.Node.cloneTree()
,
Node.cloneNode(boolean)
,
Node.duplicateNode(javax.media.j3d.Node, boolean)
,
NodeComponent.setDuplicateOnCloneTree(boolean)
public void duplicateNode(Node originalNode, boolean forceDuplicate)
originalNode
into
the current node. This method is called from the
cloneNode
method which is, in turn, called by the
cloneTree
method.
For any NodeComponent objects
contained by the object being duplicated, each NodeComponent
object's duplicateOnCloneTree
value is used to determine
whether the NodeComponent should be duplicated in the new node
or if just a reference to the current node should be placed in the
new node. This flag can be overridden by setting the
forceDuplicate
parameter in the cloneTree
method to true
.
originalNode
- the original node to duplicate.forceDuplicate
- when set to true
, causes the
duplicateOnCloneTree
flag to be ignored. When
false
, the value of each node's
duplicateOnCloneTree
variable determines whether
NodeComponent data is duplicated or copied.Node.cloneTree()
,
Node.cloneNode(boolean)
,
NodeComponent.setDuplicateOnCloneTree(boolean)
public void updateNodeReferences(NodeReferenceTable referenceTable)
cloneTree
.
This method is called by cloneTree
after all nodes in
the sub-graph have been duplicated. The cloned Leaf node's method
will be called and the Leaf node can then look up any object references
by using the getNewObjectReference
method found in the
NodeReferenceTable
object. If a match is found, a
reference to the corresponding object in the newly cloned sub-graph
is returned. If no corresponding reference is found, either a
DanglingReferenceException is thrown or a reference to the original
object is returned depending on the value of the
allowDanglingReferences
parameter passed in the
cloneTree
call.referenceTable
- a NodeReferenceTableObject that contains the
getNewObjectReference
method needed to search for
new object instances.NodeReferenceTable
,
Node.cloneTree()
,
DanglingReferenceException
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