public JuliaRealViewer2DExample(
final ComplexDoubleType c,
final int maxIterations,
final int maxAmplitude,
final Converter<LongType, ARGBType> converter) {
this.c = c;
juliaset = new JuliaRealRandomAccessible(c, maxIterations, maxAmplitude);
/* center shift */
final AffineTransform2D centerShift = new AffineTransform2D();
centerShift.set(1, 0, -width / 2.0, 0, 1, -height / 2.0);
/* center un-shift */
final AffineTransform2D centerUnShift = new AffineTransform2D();
centerUnShift.set(1, 0, width / 2.0, 0, 1, height / 2.0);
/* initialize rotation */
final AffineTransform2D rotation = new AffineTransform2D();
rotation.scale(200);
rotation.preConcatenate(centerUnShift);
final LogoPainter logo = new LogoPainter();
viewer =
new InteractiveRealViewer2D<LongType>(width, height, juliaset, rotation, converter) {
@Override
public void drawScreenImage() {
super.drawScreenImage();
logo.paint(screenImage);
}
};
viewer.getDisplay().addHandler(new JuliaListener());
}
public double getScale() {
final AffineTransform2D a = viewer.getDisplay().getViewerTransform();
final double ax = a.get(0, 0);
final double ay = a.get(0, 1);
return Math.sqrt(ax * ax + ay * ay);
}