Package javax.media.j3d
Class RotationPathInterpolator
- java.lang.Object
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public class RotationPathInterpolator extends PathInterpolator
RotationPathInterpolator behavior. This class defines a behavior that varies the rotational component of its target TransformGroup by linearly interpolating among a series of predefined knot/orientation pairs (using the value generated by the specified Alpha object). The interpolated orientation is used to generate a rotation transform in the local coordinate system. 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.
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Field Summary
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Fields inherited from class javax.media.j3d.PathInterpolator
currentInterpolationValue, currentKnotIndex
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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 RotationPathInterpolator(Alpha alpha, TransformGroup target, Transform3D axisOfTransform, float[] knots, javax.vecmath.Quat4f[] quats)
Constructs a new RotationPathInterpolator object that varies the target TransformGroup node's transform.
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Method Summary
All Methods Instance Methods Concrete Methods Deprecated Methods Modifier and Type Method Description Node
cloneNode(boolean forceDuplicate)
Used to create a new instance of the node.void
computeTransform(float alphaValue, Transform3D transform)
Computes the new transform for this interpolator for a given alpha value.Transform3D
getAxisOfRotation()
Deprecated.As of Java 3D version 1.3, replaced byTransformInterpolator.getTransformAxis()
void
getQuat(int index, javax.vecmath.Quat4f quat)
Retrieves the quat value at the specified index.void
getQuats(javax.vecmath.Quat4f[] quats)
Copies the array of quaternion values from this interpolator into the specified array.void
setAxisOfRotation(Transform3D axisOfRotation)
Deprecated.As of Java 3D version 1.3, replaced byTransformInterpolator.seTransformAxis(Transform3D)
void
setPathArrays(float[] knots, javax.vecmath.Quat4f[] quats)
Replaces the existing arrays of knot values and quaternion values with the specified arrays.void
setQuat(int index, javax.vecmath.Quat4f quat)
Sets the quat value at the specified index for this interpolator.-
Methods inherited from class javax.media.j3d.PathInterpolator
computePathInterpolation, computePathInterpolation, getArrayLengths, getKnot, getKnots, setKnot, setKnots
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Methods inherited from class javax.media.j3d.TransformInterpolator
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
cloneTree, cloneTree, cloneTree, cloneTree, cloneTree, cloneTree, duplicateNode, 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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Constructor Detail
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RotationPathInterpolator
public RotationPathInterpolator(Alpha alpha, TransformGroup target, Transform3D axisOfTransform, float[] knots, javax.vecmath.Quat4f[] quats)
Constructs a new RotationPathInterpolator object that varies the target TransformGroup node's transform.- Parameters:
alpha
- the alpha object of this interpolatortarget
- the TransformGroup node affected by this interpolatoraxisOfTransform
- the transform that defines the local coordinate system in which this interpolator operatesknots
- an array of knot values that specify interpolation pointsquats
- an array of quaternion values at the knots- Throws:
java.lang.IllegalArgumentException
- if the lengths of the knots and quats arrays are not the same.
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Method Detail
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setQuat
public void setQuat(int index, javax.vecmath.Quat4f quat)
Sets the quat value at the specified index for this interpolator.- Parameters:
index
- the index to be changedquat
- the new quat value at the index
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getQuat
public void getQuat(int index, javax.vecmath.Quat4f quat)
Retrieves the quat value at the specified index.- Parameters:
index
- the index of the value requestedquat
- the quat object that will have the quat value at index copied into it.
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setPathArrays
public void setPathArrays(float[] knots, javax.vecmath.Quat4f[] quats)
Replaces the existing arrays of knot values and quaternion values with the specified arrays. The arrays of knots and quats are copied into this interpolator object.- Parameters:
knots
- a new array of knot values that specify interpolation pointsquats
- a new array of quaternion values at the knots- Throws:
java.lang.IllegalArgumentException
- if the lengths of the knots and quats arrays are not the same.- Since:
- Java 3D 1.2
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getQuats
public void getQuats(javax.vecmath.Quat4f[] quats)
Copies the array of quaternion values from this interpolator into the specified array. The array must be large enough to hold all of the quats. The individual array elements must be allocated by the caller.- Parameters:
quats
- array that will receive the quats- Since:
- Java 3D 1.2
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setAxisOfRotation
public void setAxisOfRotation(Transform3D axisOfRotation)
Deprecated.As of Java 3D version 1.3, replaced byTransformInterpolator.seTransformAxis(Transform3D)
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getAxisOfRotation
public Transform3D getAxisOfRotation()
Deprecated.As of Java 3D version 1.3, replaced byTransformInterpolator.getTransformAxis()
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computeTransform
public void computeTransform(float alphaValue, Transform3D transform)
Computes the new transform for this interpolator for a given alpha value.- Specified by:
computeTransform
in classTransformInterpolator
- Parameters:
alphaValue
- alpha value between 0.0 and 1.0transform
- object that receives the computed transform for the specified alpha value- Since:
- Java 3D 1.3
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cloneNode
public Node cloneNode(boolean forceDuplicate)
Used to create a new instance of the node. This routine is called bycloneTree
to duplicate the current node.- Overrides:
cloneNode
in classNode
- Parameters:
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.- See Also:
Node.cloneTree()
,Node.cloneNode(boolean)
,Node.duplicateNode(javax.media.j3d.Node, boolean)
,NodeComponent.setDuplicateOnCloneTree(boolean)
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