Package javax.media.j3d
Class RotPosScalePathInterpolator
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.PathInterpolator
javax.media.j3d.RotPosScalePathInterpolator
RotPosScalePathInterpolation behavior. This class defines a behavior
that varies the rotational, translational, and scale components of its
target TransformGroup by linearly interpolating among a series of
predefined knot/position, knot/orientation, and knot/scale pairs
(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. 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.
-
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
-
Constructor Summary
ConstructorsConstructorDescriptionRotPosScalePathInterpolator
(Alpha alpha, TransformGroup target, Transform3D axisOfTransform, float[] knots, javax.vecmath.Quat4f[] quats, javax.vecmath.Point3f[] positions, float[] scales) Constructs a new RotPosScalePathInterpolator object that varies the rotation, translation, and scale 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.float
getScale
(int index) Retrieves the scale at the specified index.void
getScales
(float[] scales) Copies the array of scale values from this interpolator into the specified array.void
setAxisOfRotPosScale
(Transform3D axisOfRotPosScale) Deprecated.As of Java 3D version 1.3, replaced byTransformInterpolator.setTransformAxis(Transform3D)
void
setPathArrays
(float[] knots, javax.vecmath.Quat4f[] quats, javax.vecmath.Point3f[] positions, float[] scales) Replaces the existing arrays of knot values, quaternion values, position values, and scale values with the specified arrays.void
setPosition
(int index, javax.vecmath.Point3f position) Sets the position value at the specified index for this interpolator.void
setQuat
(int index, javax.vecmath.Quat4f quat) Sets the quat value at the specified index for this interpolator.void
setScale
(int index, float scale) Sets the scale 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
-
Constructor Details
-
RotPosScalePathInterpolator
public RotPosScalePathInterpolator(Alpha alpha, TransformGroup target, Transform3D axisOfTransform, float[] knots, javax.vecmath.Quat4f[] quats, javax.vecmath.Point3f[] positions, float[] scales) Constructs a new RotPosScalePathInterpolator object that varies the rotation, translation, and scale of the target TransformGroup's transform.- 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.knots
- 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.scales
- an array of scale component values at the knots.- Throws:
IllegalArgumentException
- if the lengths of the knots, quats, positions, and scales arrays are not all the same.
-
-
Method Details
-
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 index
-
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
- returns the interpolator's quat value at the index
-
setPosition
public void setPosition(int index, javax.vecmath.Point3f position) Sets the position value at the specified index for this interpolator.- Parameters:
index
- the index to be changedposition
- the new position value at index
-
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
- returns the interpolator's position value at the index
-
setScale
public void setScale(int index, float scale) Sets the scale at the specified index for this interpolator.- Parameters:
index
- the index to be changedscale
- the new scale at index
-
getScale
public float getScale(int index) Retrieves the scale at the specified index.- Parameters:
index
- the index of the value requested- Returns:
- the interpolator's scale value at index
-
setPathArrays
public void setPathArrays(float[] knots, javax.vecmath.Quat4f[] quats, javax.vecmath.Point3f[] positions, float[] scales) Replaces the existing arrays of knot values, quaternion values, position values, and scale values with the specified arrays. The arrays of knots, quats, positions, and scales 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.scales
- a new array of scale component values at the knots.- Throws:
IllegalArgumentException
- if the lengths of the knots, quats, positions, and scales arrays are not all the same.- Since:
- Java 3D 1.2
-
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
-
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
-
getScales
public void getScales(float[] scales) Copies the array of scale values from this interpolator into the specified array. The array must be large enough to hold all of the scales.- Parameters:
scales
- array that will receive the scales.- Since:
- Java 3D 1.2
-
setAxisOfRotPosScale
Deprecated.As of Java 3D version 1.3, replaced byTransformInterpolator.setTransformAxis(Transform3D)
-
getAxisOfRotPosScale
Deprecated.As of Java 3D version 1.3, replaced byTransformInterpolator.geTransformAxis()
-
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
-
cloneNode
Used to create a new instance of the node. This routine is called bycloneTree
to duplicate the current node.
-
TransformInterpolator.geTransformAxis()