com.sun.j3d.utils.behaviors.interpolators
Class CubicSplineSegment

java.lang.Object
  |
  +--com.sun.j3d.utils.behaviors.interpolators.CubicSplineSegment

public class CubicSplineSegment

extends java.lang.Object

The CubicSplineSegment class creates the representation of a TCB (Kochanek-Bartels Spline). This class takes 4 key frames as its input (using TCBKeyFrame). If interpolating between the i^th and (i+1)^th key frame then the four key frames that need to be specified are the (i-1)^th, i^th, (i+1)^th and (i+2)^th keyframes in order. The CubicSegmentClass then pre-computes 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, sccale and quaternions it returns through the getInterpolated* methods.

Since:

Java3D 1.1

Method Summary

float	computeLength(float u)
void	getInterpolatedPosition(float u, Point3f newPos)
void	getInterpolatedPositionVector(float u, Vector3f newPos)
void	getInterpolatedQuaternion(float u, Quat4f newQuat)
void	getInterpolatedScale(float u, Point3f newScale)
float	getInterpolatedValue(float u)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

computeLength

public float computeLength(float u)

getInterpolatedQuaternion

public void getInterpolatedQuaternion(float u,
                                      Quat4f newQuat)

getInterpolatedScale

public void getInterpolatedScale(float u,
                                 Point3f newScale)

getInterpolatedPosition

public void getInterpolatedPosition(float u,
                                    Point3f newPos)

getInterpolatedPositionVector

public void getInterpolatedPositionVector(float u,
                                          Vector3f newPos)

getInterpolatedValue

public float getInterpolatedValue(float u)