Class TCBSplinePathInterpolator
- 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.Behavior
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- javax.media.j3d.Interpolator
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- javax.media.j3d.TransformInterpolator
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- com.sun.j3d.utils.behaviors.interpolators.TCBSplinePathInterpolator
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- Direct Known Subclasses:
RotPosScaleTCBSplinePathInterpolator
public abstract class TCBSplinePathInterpolator extends TransformInterpolator
TCBSplinePathInterpolator behavior. This class defines the base class for all TCB (Kochanek-Bartels) Spline Path Interpolators.- Since:
- Java3D 1.1
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Field Summary
Fields Modifier and Type Field Description protected float
currentU
This value is the distance between knots value which can be used in further calculations by the subclass.protected TCBKeyFrame[]
keyFrames
An array of KBKeyFrame for interpolatorprotected int
lowerKnot
The lower knotprotected int
upperKnot
The upper knot-
Fields inherited from class javax.media.j3d.TransformInterpolator
axis, axisInverse, target
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Fields inherited from class javax.media.j3d.Interpolator
defaultWakeupCriterion
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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 TCBSplinePathInterpolator(Alpha alpha, TCBKeyFrame[] keys)
Deprecated.As of Java 3D version 1.3, replaced byTCBSplinePathInterpolator(Alpha, TransformGroup, TCBKeyFrame[])
TCBSplinePathInterpolator(Alpha alpha, TransformGroup target, TCBKeyFrame[] keys)
Constructs a new TCBSplinePathInterpolator object that interpolates between keyframes with specified alpha, target and default axisOfTransform set to identity.TCBSplinePathInterpolator(Alpha alpha, TransformGroup target, Transform3D axisOfTransform, TCBKeyFrame[] keys)
Constructs a new TCBSplinePathInterpolator object that interpolates between keyframes with specified alpha, target and axisOfTransform.
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Method Summary
All Methods Instance Methods Concrete Methods Deprecated Methods Modifier and Type Method Description protected void
computePathInterpolation()
Deprecated.As of Java 3D version 1.3, replaced bycomputePathInterpolation(float)
protected void
computePathInterpolation(float alphaValue)
This method computes the bounding knot indices and interpolation value "CurrentU" given the specified value of alpha and the knots[] array.void
duplicateNode(Node originalNode, boolean forceDuplicate)
Copies all TCBSplinePathInterpolator information fromoriginalNode
into the current node.int
getArrayLength()
This method retrieves the length of the key frame array.TCBKeyFrame
getKeyFrame(int index)
This method retrieves the key frame at the specified index.-
Methods inherited from class javax.media.j3d.TransformInterpolator
computeTransform, getTarget, getTransformAxis, processStimulus, setTarget, setTransformAxis, updateNodeReferences
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Methods inherited from class javax.media.j3d.Interpolator
getAlpha, initialize, setAlpha
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Methods inherited from class javax.media.j3d.Behavior
getEnable, getNumSchedulingIntervals, getSchedulingBoundingLeaf, getSchedulingBounds, getSchedulingInterval, getView, getWakeupCondition, postId, setEnable, setSchedulingBoundingLeaf, setSchedulingBounds, setSchedulingInterval, wakeupOn
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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
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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
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Field Detail
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keyFrames
protected TCBKeyFrame[] keyFrames
An array of KBKeyFrame for interpolator
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currentU
protected float currentU
This value is the distance between knots value which can be used in further calculations by the subclass.
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lowerKnot
protected int lowerKnot
The lower knot
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upperKnot
protected int upperKnot
The upper knot
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Constructor Detail
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TCBSplinePathInterpolator
public TCBSplinePathInterpolator(Alpha alpha, TCBKeyFrame[] keys)
Deprecated.As of Java 3D version 1.3, replaced byTCBSplinePathInterpolator(Alpha, TransformGroup, TCBKeyFrame[])
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TCBSplinePathInterpolator
public TCBSplinePathInterpolator(Alpha alpha, TransformGroup target, TCBKeyFrame[] keys)
Constructs a new TCBSplinePathInterpolator object that interpolates between keyframes with specified alpha, target and default axisOfTransform 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 interpolatortarget
- the TransformGroup node effected by this TCBSplinePathInterpolatorkeys
- an array of TCBKeyFrame. Requires at least two key frames.- Since:
- Java 3D 1.3
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TCBSplinePathInterpolator
public TCBSplinePathInterpolator(Alpha alpha, TransformGroup target, Transform3D axisOfTransform, TCBKeyFrame[] keys)
Constructs a new TCBSplinePathInterpolator 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 interpolatortarget
- the TransformGroup node effected by this TCBSplinePathInterpolatoraxisOfTransform
- the transform that defines the local coordinatekeys
- an array of TCBKeyFrame. Requires at least two key frames.- Since:
- Java 3D 1.3
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Method Detail
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getArrayLength
public int getArrayLength()
This method retrieves the length of the key frame array.- Returns:
- the number of key frames
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getKeyFrame
public TCBKeyFrame 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
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computePathInterpolation
protected void computePathInterpolation(float alphaValue)
This method computes the bounding knot indices and interpolation value "CurrentU" given the specified value of alpha and the knots[] array.- Parameters:
alphaValue
- alpha value between 0.0 and 1.0- Since:
- Java 3D 1.3
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computePathInterpolation
protected void computePathInterpolation()
Deprecated.As of Java 3D version 1.3, replaced bycomputePathInterpolation(float)
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duplicateNode
public void duplicateNode(Node originalNode, boolean forceDuplicate)
Copies all TCBSplinePathInterpolator information fromoriginalNode
into the current node. This method is called from thecloneNode
method which is, in turn, called by thecloneTree
method.- Overrides:
duplicateNode
in classNode
- Parameters:
originalNode
- the original node to duplicate.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.- 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)
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