Well, I went ahead and implemented a scale interpolator that does
what I want, so here is the code in case anyone else would like to use something
similar. Feel free to offer any suggestions.
Jason
import java.util.*;
import javax.media.j3d.*;
import javax.vecmath.*;
public class VectorScaleInterpolator extends Interpolator {
public static int X = 1;
public static int Y = 2;
public static int Z = 3;
protected double m_min;
protected double m_max;
protected int m_vector;
protected TransformGroup m_tg;
protected WakeupOnElapsedFrames wf
= new WakeupOnElapsedFrames(1);
protected Transform3D t3d = new Transform3D();
protected Vector3d v3d = new Vector3d();
public void initialize() {
wakeupOn( wf );
}
public void processStimulus( Enumeration enum ) {
double val = getAlpha().value();
double newScale = m_min + val*(m_max-m_min);
m_tg.getTransform(t3d);
t3d.getScale(v3d);
if(m_vector == X)
{
v3d.x = newScale;
}
else if(m_vector == Y)
{
v3d.y = newScale;
}
else if(m_vector == Z)
{
v3d.z = newScale;
}
t3d.setScale(v3d);
m_tg.setTransform(t3d);
wakeupOn( wf );
}
public VectorScaleInterpolator( Alpha alpha, TransformGroup tg,
int vector, double max, double min) {
super( alpha );
m_tg = tg;
if(vector == X)
{
m_vector = vector;
}
else if(vector == Y)
{
m_vector = vector;
}
else if(vector == Z)
{
m_vector = vector;
}
else
{
m_vector = X;
}
m_min = min;
m_max = max;
}
}
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