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38 lines
1.1 KiB
Java

package deepZoom.colorings;
import deepZoom.renderer.PointInfo;
import digisoft.custom.math.NumberConstants;
import digisoft.custom.swing.gradient.Gradient;
import digisoft.custom.util.geom.DoubleDouble;
/**
* @author Zom-B
* @since 1.0
* @date May 1, 2009
*/
public class SmoothIterationsColoringBad extends GradientColoring {
private double logLogBailout;
public SmoothIterationsColoringBad(Gradient gradient) {
super(gradient);
}
@Override
public void initParameters() {
logLogBailout = StrictMath.log(StrictMath.log(parameters.getBailout()));
}
@Override
public float getIndex(PointInfo resultSet) {
long i = resultSet.lastIter;
DoubleDouble zx = resultSet.lastZX;
DoubleDouble zy = resultSet.lastZY;
double r = StrictMath.sqrt(zx.hi * zx.hi + zy.hi * zy.hi);
double c = i - 1.28 + (logLogBailout - StrictMath.log(StrictMath.log(r))) * NumberConstants.Q1LOG2;
return (float) (StrictMath.log(c / 64 + 1) / NumberConstants.LOG2 + 0.45);
}
}