Package javax.media.j3d
Class RotPosPathInterpolator
RotPosPathInterpolator behavior. This class defines a behavior that
modifies the rotational and translational components of its target
TransformGroup by linearly interpolating among a series of predefined
knot/positon and knot/orientation pairs (using the value generated
by the specified Alpha object). The interpolated position and
orientation are used to generate a transform in the local coordinate
system of this interpolator.
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Field Summary
Fields inherited from class javax.media.j3d.PathInterpolator
currentInterpolationValue, currentKnotIndex
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
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Constructor Summary
ConstructorsConstructorDescriptionRotPosPathInterpolator
(Alpha alpha, TransformGroup target, Transform3D axisOfTransform, float[] knots, javax.vecmath.Quat4f[] quats, javax.vecmath.Point3f[] positions) Constructs a new interpolator that varies the rotation and translation of the target TransformGroup's transform. -
Method Summary
Modifier and TypeMethodDescriptioncloneNode
(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.Deprecated.void
getPosition
(int index, javax.vecmath.Point3f position) Retrieves the position value at the specified index.void
getPositions
(javax.vecmath.Point3f[] positions) Copies the array of position values from this interpolator into the specified array.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
setAxisOfRotPos
(Transform3D axisOfRotPos) Deprecated.As of Java 3D version 1.3, replaced byTransformInterpolator.setTransformAxis(Transform3D)
void
setPathArrays
(float[] knots, javax.vecmath.Quat4f[] quats, javax.vecmath.Point3f[] positions) Replaces the existing arrays of knot values, quaternion values, and position values with the specified arrays.void
setPosition
(int index, javax.vecmath.Point3f position) Sets the position at the specified index for this interpolator.void
setQuat
(int index, javax.vecmath.Quat4f quat) Sets the quat at the specified index for this interpolator.Methods inherited from class javax.media.j3d.PathInterpolator
computePathInterpolation, computePathInterpolation, getArrayLengths, getKnot, getKnots, setKnot, setKnots
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, duplicateNode, 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
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Constructor Details
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RotPosPathInterpolator
public RotPosPathInterpolator(Alpha alpha, TransformGroup target, Transform3D axisOfTransform, float[] knots, javax.vecmath.Quat4f[] quats, javax.vecmath.Point3f[] positions) Constructs a new interpolator that varies the rotation and translation of the target TransformGroup's transform.- Parameters:
alpha
- the alpha object for this interpolatortarget
- the TransformGroup node affected by this translatoraxisOfTransform
- the transform that defines the local coordinate system in which this interpolator operatesknots
- 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.- Throws:
IllegalArgumentException
- if the lengths of the knots, quats, and positions arrays are not all the same.
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Method Details
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setQuat
public void setQuat(int index, javax.vecmath.Quat4f quat) Sets the quat at the specified index for this interpolator.- Parameters:
index
- the index to be changedquat
- the new quat value
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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 to receive the quat value at the index
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setPosition
public void setPosition(int index, javax.vecmath.Point3f position) Sets the position at the specified index for this interpolator.- Parameters:
index
- the index to be changedposition
- the new position value
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getPosition
public void getPosition(int index, javax.vecmath.Point3f position) Retrieves the position value at the specified index.- Parameters:
index
- the index of the value requestedposition
- the position to receive the position value at the index
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setPathArrays
public void setPathArrays(float[] knots, javax.vecmath.Quat4f[] quats, javax.vecmath.Point3f[] positions) Replaces the existing arrays of knot values, quaternion values, and position values with the specified arrays. The arrays of knots, quats, and positions are copied into this interpolator object.- Parameters:
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.- Throws:
IllegalArgumentException
- if the lengths of the knots, quats, and positions arrays are not all 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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getPositions
public void getPositions(javax.vecmath.Point3f[] positions) Copies the array of position values from this interpolator into the specified array. The array must be large enough to hold all of the positions. The individual array elements must be allocated by the caller.- Parameters:
positions
- array that will receive the positions.- Since:
- Java 3D 1.2
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setAxisOfRotPos
Deprecated.As of Java 3D version 1.3, replaced byTransformInterpolator.setTransformAxis(Transform3D)
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getAxisOfRotPos
Deprecated.As of Java 3D version 1.3, replaced byTransformInterpolator.getTransformAxis()
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computeTransform
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
Used to create a new instance of the node. This routine is called bycloneTree
to duplicate the current node.
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TransformInterpolator.getTransformAxis()