Package javax.media.j3d
Class PositionInterpolator
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
javax.media.j3d.PositionInterpolator
Position interpolator behavior. This class defines a behavior
that modifies the translational component of its target
TransformGroup by linearly interpolating between a pair of
specified positions (using the value generated by the
specified Alpha object). The interpolated position is used
to generate a translation transform along the local X-axis
of this interpolator.
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Field Summary
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
ConstructorsConstructorDescriptionPositionInterpolator
(Alpha alpha, TransformGroup target) Constructs a trivial position interpolator with a specified target, an axisOfTranslation set to Identity, a startPosition of 0.0f, and an endPosition of 1.0f.PositionInterpolator
(Alpha alpha, TransformGroup target, Transform3D axisOfTransform, float startPosition, float endPosition) Constructs a new position interpolator that varies the target TransformGroup's translational component (startPosition and endPosition). -
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.float
This method retrieves this interpolator's endPosition.float
This method retrieves this interpolator's startPosition.void
setAxisOfTranslation
(Transform3D axisOfTranslation) Deprecated.As of Java 3D version 1.3, replaced byTransformInterpolator.setTransformAxis(Transform3D)
void
setEndPosition
(float position) This method sets the endPosition for this interpolator.void
setStartPosition
(float position) This method sets the startPosition for this interpolator.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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PositionInterpolator
Constructs a trivial position interpolator with a specified target, an axisOfTranslation set to Identity, a startPosition of 0.0f, and an endPosition of 1.0f.- Parameters:
alpha
- The alpha object for this Interpolatortarget
- The target for this position Interpolator
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PositionInterpolator
public PositionInterpolator(Alpha alpha, TransformGroup target, Transform3D axisOfTransform, float startPosition, float endPosition) Constructs a new position interpolator that varies the target TransformGroup's translational component (startPosition and endPosition).- Parameters:
alpha
- the alpha object for this interpolatortarget
- the transformgroup node effected by this positionInterpolatoraxisOfTransform
- the transform that defines the local coordinate system in which this interpolator operates. The translation is done along the X-axis of this local coordinate system.startPosition
- the starting positionendPosition
- the ending position
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Method Details
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setStartPosition
public void setStartPosition(float position) This method sets the startPosition for this interpolator.- Parameters:
position
- The new start position
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getStartPosition
public float getStartPosition()This method retrieves this interpolator's startPosition.- Returns:
- the interpolator's start position value
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setEndPosition
public void setEndPosition(float position) This method sets the endPosition for this interpolator.- Parameters:
position
- The new end position
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getEndPosition
public float getEndPosition()This method retrieves this interpolator's endPosition.- Returns:
- the interpolator's end position vslue
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setAxisOfTranslation
Deprecated.As of Java 3D version 1.3, replaced byTransformInterpolator.setTransformAxis(Transform3D)
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getAxisOfTranslation
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()