com.sun.j3d.utils.behaviors.interpolators

Class RotPosScaleTCBSplinePathInterpolator

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.TCBSplinePathInterpolator

com.sun.j3d.utils.behaviors.interpolators.RotPosScaleTCBSplinePathInterpolator

public class RotPosScaleTCBSplinePathInterpolator
extends TCBSplinePathInterpolator

RotPosScaleTCBSplinePathInterpolator behavior. This class defines a behavior that varies the rotational, translational, and scale components of its target TransformGroup by using the Kochanek-Bartels cubic spline interpolation to interpolate among a series of key frames (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.

Since:

Java3D 1.1

Field Summary

Fields inherited from class com.sun.j3d.utils.behaviors.interpolators.TCBSplinePathInterpolator

currentU, keyFrames, lowerKnot, upperKnot

Fields inherited from class javax.media.j3d.TransformInterpolator

axis, axisInverse, target

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_LOCALE_READ, ALLOW_PARENT_READ, ALLOW_PICKABLE_READ, ALLOW_PICKABLE_WRITE, ENABLE_COLLISION_REPORTING, ENABLE_PICK_REPORTING

Constructor Summary

Constructors

Constructor and Description
RotPosScaleTCBSplinePathInterpolator(javax.media.j3d.Alpha alpha, javax.media.j3d.TransformGroup target, javax.media.j3d.Transform3D axisOfTransform, TCBKeyFrame[] keys) Constructs a new RotPosScaleTCBSplinePathInterpolator object that varies the rotation, translation, and scale of the target TransformGroup's transform.

Method Summary

Methods

Modifier and Type	Method and Description
javax.media.j3d.Node	cloneNode(boolean forceDuplicate) Used to create a new instance of the node.
void	computeTransform(float alphaValue, javax.media.j3d.Transform3D transform) Computes the new transform for this interpolator for a given alpha value.
void	duplicateNode(javax.media.j3d.Node originalNode, boolean forceDuplicate) Copies RotPosScaleTCBSplinePathInterpolator information from originalNode into the current node.
javax.media.j3d.Transform3D	getAxisOfRotPosScale() Deprecated. As of Java 3D version 1.3, replaced by TransformInterpolator.getTransformAxis()
void	setAxisOfRotPosScale(javax.media.j3d.Transform3D axisOfRotPosScale) Deprecated. As of Java 3D version 1.3, replaced by TransformInterpolator.setTransformAxis(Transform3D)

Methods inherited from class com.sun.j3d.utils.behaviors.interpolators.TCBSplinePathInterpolator

computePathInterpolation, computePathInterpolation, getArrayLength, getKeyFrame

Methods inherited from class javax.media.j3d.TransformInterpolator

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, getView, getWakeupCondition, postId, setEnable, setSchedulingBoundingLeaf, setSchedulingBounds, setSchedulingInterval, wakeupOn

Methods inherited from class javax.media.j3d.Node

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

Methods inherited from class java.lang.Object

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

Constructor Detail

RotPosScaleTCBSplinePathInterpolator

public RotPosScaleTCBSplinePathInterpolator(javax.media.j3d.Alpha alpha,
                                    javax.media.j3d.TransformGroup target,
                                    javax.media.j3d.Transform3D axisOfTransform,
                                    TCBKeyFrame[] keys)

Constructs a new RotPosScaleTCBSplinePathInterpolator object that varies the rotation, translation, and scale of the target TransformGroup's transform. At least 2 key frames are required for this interpolator. 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.

Parameters:

alpha - the alpha object for this interpolator

target - the TransformGroup node affected by this interpolator

axisOfTransform - the transform that specifies the local coordinate system in which this interpolator operates.

keys - an array of key frames that defien the motion path

Method Detail

setAxisOfRotPosScale

public void setAxisOfRotPosScale(javax.media.j3d.Transform3D axisOfRotPosScale)

Deprecated. As of Java 3D version 1.3, replaced by TransformInterpolator.setTransformAxis(Transform3D)

getAxisOfRotPosScale

public javax.media.j3d.Transform3D getAxisOfRotPosScale()

Deprecated. As of Java 3D version 1.3, replaced by TransformInterpolator.getTransformAxis()

computeTransform

public void computeTransform(float alphaValue,
                    javax.media.j3d.Transform3D transform)

Computes the new transform for this interpolator for a given alpha value.

Specified by:

computeTransform in class javax.media.j3d.TransformInterpolator

Parameters:

alphaValue - alpha value between 0.0 and 1.0

transform - object that receives the computed transform for the specified alpha value

Since:

Java 3D 1.3

cloneNode

public javax.media.j3d.Node cloneNode(boolean forceDuplicate)

Used to create a new instance of the node. This routine is called by cloneTree to duplicate the current node.

Overrides:

cloneNode in class javax.media.j3d.Node

Parameters:

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.

See Also:

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

duplicateNode

public void duplicateNode(javax.media.j3d.Node originalNode,
                 boolean forceDuplicate)

Copies RotPosScaleTCBSplinePathInterpolator 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 TCBSplinePathInterpolator

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:

javax.media.j3d.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)