final PhongMaterial blueMaterial = new PhongMaterial();
blueMaterial.setDiffuseColor(Color.DARKBLUE);
blueMaterial.setSpecularColor(Color.BLUE);
final Box xAxis = new Box(240.0, 1, 1);
final Box yAxis = new Box(1, 240.0, 1);
final Box zAxis = new Box(1, 1, 240.0);
xAxis.setMaterial(redMaterial);
yAxis.setMaterial(greenMaterial);
zAxis.setMaterial(blueMaterial);
axisGroup.getChildren().addAll(xAxis, yAxis, zAxis);
world.getChildren().addAll(axisGroup);
}