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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_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. |
Transform3D |
getAxisOfRotPosScale()
Retrieves this interpolator's axis of rotation, translation, and scale. |
void |
getPosition(int index,
Point3f position)
Retrieves the position value at the specified index. |
void |
getPositions(Point3f[] positions)
Copies the array of position values from this interpolator into the specified array. |
void |
getQuat(int index,
Quat4f quat)
Retrieves the quat value at the specified index. |
void |
getQuats(Quat4f[] quats)
Copies the array of quaternion values from this interpolator into the specified array. |
float |
getScale(int index)
Retrieves the scale at the specified index. |
void |
getScales(float[] scales)
Copies the array of scale values from this interpolator into the specified array. |
TransformGroup |
getTarget()
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)
Sets the axis of rotation, translation, and scale for this interpolator, RotPosScale, which defines the local coordinate system in which this interpolator operates. |
void |
setPathArrays(float[] knots,
Quat4f[] quats,
Point3f[] positions,
float[] scales)
Replaces the existing arrays of knot values, quaternion values, position values, and scale values with the specified arrays. |
void |
setPosition(int index,
Point3f position)
Sets the position value at the specified index for this interpolator. |
void |
setQuat(int index,
Quat4f quat)
Sets the quat value at the specified index for this interpolator. |
void |
setScale(int index,
float scale)
Sets the scale at the specified index for this interpolator. |
void |
setTarget(TransformGroup target)
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,
getKnots,
setKnot,
setKnots |
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,
cloneTree,
cloneTree,
cloneTree,
duplicateNode,
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 interpolator.target
- the TransformGroup node affected by this interpolator.axisOfRotPosScale
- the transform that specifies the local
coordinate system in which this interpolator operates.knots
- an array of knot values that specify interpolation points.quats
- an array of quaternion values at the knots.positions
- an array of position values at the knots.scales
- an array of scale component values at the knots.Method Detail |
public 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 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 setPathArrays(float[] knots, Quat4f[] quats, Point3f[] positions, float[] scales)
knots
- a new array of knot values that specify
interpolation points.quats
- a new array of quaternion values at the knots.positions
- a new array of position values at the knots.scales
- a new array of scale component values at the knots.public void getQuats(Quat4f[] quats)
quats
- array that will receive the quats.public void getPositions(Point3f[] positions)
positions
- array that will receive the positions.public void getScales(float[] scales)
scales
- array that will receive the scales.public 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 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.
NOTE: Applications should not call this method directly. It should only be called by the cloneTree method.
referenceTable
- a NodeReferenceTableObject that contains the
getNewObjectReference
method needed to search for
new object instances.NodeReferenceTable
,
Node.cloneTree()
,
DanglingReferenceException
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