com.sun.j3d.utils.behaviors.interpolators
Class KBSplinePathInterpolator

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.TransformInterpolator
                          com.sun.j3d.utils.behaviors.interpolators.KBSplinePathInterpolator

Direct Known Subclasses:

KBRotPosScaleSplinePathInterpolator

public abstract class KBSplinePathInterpolator
extends TransformInterpolator

KBSplinePathInterpolator behavior. This class defines the base class for all Kochanek-Bartels (also known as TCB or Tension-Continuity-Bias) Spline Path Interpolators.

Since:

Java3D 1.2

Field Summary

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

Constructor Summary

KBSplinePathInterpolator(Alpha alpha, KBKeyFrame[] keys)
Deprecated. As of Java 3D version 1.3, replaced by KBSplinePathInterpolator(Alpha, TransformGroup, TCBKeyFrame[])

KBSplinePathInterpolator(Alpha alpha, TransformGroup target, KBKeyFrame[] keys)
Constructs a new KBSplinePathInterpolator object that interpolates between keyframes with specified alpha, target and an default axisOfTranform set to identity.

KBSplinePathInterpolator(Alpha alpha, TransformGroup target, Transform3D axisOfTransform, KBKeyFrame[] keys)
Constructs a new KBSplinePathInterpolator object that interpolates between keyframes with specified alpha, target and axisOfTransform.

Method Summary

void	duplicateNode(Node originalNode, boolean forceDuplicate) Copies all KBSplinePathInterpolator information from originalNode into the current node.
int	getArrayLength() This method retrieves the length of the key frame array.
KBKeyFrame	getKeyFrame(int index) This method retrieves the key frame at the specified index.
void	setKeyFrame(int index, KBKeyFrame keyFrame) Set the key frame at the specified index to keyFrame
void	setKeyFrames(KBKeyFrame[] keyFrames) Set allthe key frames

Methods inherited from class javax.media.j3d.TransformInterpolator

computeTransform, getTarget, getTransformAxis, processStimulus, setTarget, setTransformAxis, updateNodeReferences

Methods inherited from class javax.media.j3d.Interpolator

getAlpha, initialize, setAlpha

Methods inherited from class javax.media.j3d.Behavior

getEnable, getNumSchedulingIntervals, getSchedulingBoundingLeaf, getSchedulingBounds, getSchedulingInterval, postId, setEnable, setSchedulingBoundingLeaf, setSchedulingBounds, setSchedulingInterval

Methods inherited from class javax.media.j3d.Node

cloneNode, cloneTree, cloneTree, cloneTree, cloneTree, cloneTree, cloneTree, getBounds, getBoundsAutoCompute, getCollidable, getLocale, getLocalToVworld, getLocalToVworld, getParent, getPickable, setBounds, setBoundsAutoCompute, setCollidable, setPickable

Methods inherited from class javax.media.j3d.SceneGraphObject

clearCapability, clearCapabilityIsFrequent, getCapability, getCapabilityIsFrequent, getName, getUserData, isCompiled, isLive, setCapability, setCapabilityIsFrequent, setName, setUserData, toString

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

KBSplinePathInterpolator

public KBSplinePathInterpolator(Alpha alpha,
                                KBKeyFrame[] keys)

Deprecated. As of Java 3D version 1.3, replaced by KBSplinePathInterpolator(Alpha, TransformGroup, TCBKeyFrame[])

KBSplinePathInterpolator

public KBSplinePathInterpolator(Alpha alpha,
                                TransformGroup target,
                                KBKeyFrame[] keys)

Constructs a new KBSplinePathInterpolator object that interpolates between keyframes with specified alpha, target and an default axisOfTranform set to identity. It takes at least two key frames. The first key frame's knot must have a value of 0.0 and the last knot must have a value of 1.0. An intermediate key frame with index k must have a knot value strictly greater than the knot value of a key frame with index less than k. Once this constructor has all the valid key frames it creates its own list of key fames that duplicates the first key frame at the beginning of the list and the last key frame at the end of the list.

Parameters:

alpha - the alpha object for this interpolator

target - the TransformGroup node affected by this interpolator

keys - an array of KBKeyFrame. Requires at least two key frames.

Since:

Java 3D 1.3

KBSplinePathInterpolator

public KBSplinePathInterpolator(Alpha alpha,
                                TransformGroup target,
                                Transform3D axisOfTransform,
                                KBKeyFrame[] keys)

Constructs a new KBSplinePathInterpolator object that interpolates between keyframes with specified alpha, target and axisOfTransform. It takes at least two key frames. The first key frame's knot must have a value of 0.0 and the last knot must have a value of 1.0. An intermediate key frame with index k must have a knot value strictly greater than the knot value of a key frame with index less than k. Once this constructor has all the valid key frames it creates its own list of key fames that duplicates the first key frame at the beginning of the list and the last key frame at the end of the list.

Parameters:

alpha - the alpha object for this interpolator

target - the TransformGroup node affected by this interpolator

axisOfTransform - the transform that defines the local coordinate

keys - an array of KBKeyFrame. Requires at least two key frames

Since:

Java 3D 1.3

Method Detail

getArrayLength

public int getArrayLength()

This method retrieves the length of the key frame array.

Returns:

the number of key frames

getKeyFrame

public KBKeyFrame getKeyFrame(int index)

This method retrieves the key frame at the specified index.

Parameters:

index - the index of the key frame requested

Returns:

the key frame at the associated index

setKeyFrame

public void setKeyFrame(int index,
                        KBKeyFrame keyFrame)

Set the key frame at the specified index to keyFrame

Parameters:

index - Index of the key frame to change

keyFrame - The new key frame

Since:

Java 3D 1.3

setKeyFrames

public void setKeyFrames(KBKeyFrame[] keyFrames)

Set allthe key frames

Parameters:

keyFrames - The new key frame

Since:

Java 3D 1.3

duplicateNode

public void duplicateNode(Node originalNode,
                          boolean forceDuplicate)

Copies all KBSplinePathInterpolator information from originalNode into the current node. This method is called from the cloneNode method which is, in turn, called by the cloneTree method.

Overrides:

duplicateNode in class Node

Parameters:

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.

Throws:

RestrictedAccessException - if this object is part of a live or compiled scenegraph.

See Also:

Node.duplicateNode(javax.media.j3d.Node, boolean), Node.cloneTree(), NodeComponent.setDuplicateOnCloneTree(boolean)