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java.lang.Object  +com.sun.j3d.utils.behaviors.interpolators.KBCubicSplineSegment
The KBCubicSplineSegment class creates the representation of a KochanekBartel's (also known as the TCB or TensionContinuityBias Spline. This class takes 4 key frames as its input (using KBKeyFrame). If interpolating between the i^{th} and (i+1)^{th} key frame then the four key frames that need to be specified are the (i1)^{th}, i^{th}, (i+1)^{th} and (i+2)^{th} keyframes in order. The KBCubicSegmentClass then precomputes the hermite interpolation basis coefficients if the (i+1)^{th} frame has the linear flag set to zero. These are used to calculate the interpolated position, scale and quaternions when they requested by the user using the getInterpolated* methods. If the the (i+1)^{th} frame's linear flag is set to 1 then the class uses linear interpolation to calculate the interpolated position, scale, heading pitch and bank it returns through the getInterpolated* methods.
Method Summary  
float 
computeLength(float u)
Computes the length of the curve at a given point between key frames. 
float 
getInterpolatedBank(float u)
Computes the interpolated bank along the curve at a given point between key frames and returns the interpolated value as a float This routine uses linear interpolation if the (i+1)^{th} key frame's linear value is equal to 1. 
float 
getInterpolatedHeading(float u)
Computes the interpolated heading along the curve at a given point between key frames and returns the interpolated value as a float This routine uses linear interpolation if the (i+1)^{th} key frame's linear value is equal to 1. 
float 
getInterpolatedPitch(float u)
Computes the interpolated pitch along the curve at a given point between key frames and returns the interpolated value as a float This routine uses linear interpolation if the (i+1)^{th} key frame's linear value is equal to 1. 
void 
getInterpolatedPosition(float u,
Point3f newPos)
Computes the interpolated position along the curve at a given point between key frames and returns a Point3f with the interpolated x, y, and z scale components. 
void 
getInterpolatedPositionVector(float u,
Vector3f newPos)
Computes the interpolated position along the curve at a given point between key frames and returns a Vector3f with the interpolated x, y, and z scale components. 
void 
getInterpolatedScale(float u,
Point3f newScale)
Computes the interpolated scale along the curve at a given point between key frames and returns a Point3f with the interpolated x, y, and z scale components. 
float 
getInterpolatedValue(float u)
Computes the ratio of the length of the spline from the i^{th} key frame to the position specified by u to the length of the entire spline segment from the i^{th} key frame to the (i+1) ^{th} key frame. 
Methods inherited from class java.lang.Object 
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait 
Method Detail 
public float computeLength(float u)
u
 specifies the point between keyframes where 0 <= u <= 1.public void getInterpolatedScale(float u, Point3f newScale)
u
 specifies the point between keyframes where 0 <= u <= 1.newScale
 returns the interpolated x,y,z scale value in a Point3fpublic void getInterpolatedPosition(float u, Point3f newPos)
u
 specifies the point between keyframes where 0 <= u <= 1.newPos
 returns the interpolated x,y,z position in a Point3fpublic void getInterpolatedPositionVector(float u, Vector3f newPos)
u
 specifies the point between keyframes where 0 <= u <= 1.newPos
 returns the interpolated x,y,z position in a Vector3f.public float getInterpolatedHeading(float u)
u
 specifies the point between keyframes where 0 <= u <= 1.
public float getInterpolatedPitch(float u)
u
 specifies the point between keyframes where 0 <= u <= 1.
public float getInterpolatedBank(float u)
u
 specifies the point between keyframes where 0 <= u <= 1.
public float getInterpolatedValue(float u)
u
 specifies the point between keyframes where 0 <= u <= 1.


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