private void layoutVertical() {
graph.setLayoutAlgorithm(new HorizontalTreeLayoutAlgorithm(LayoutStyles.NO_LAYOUT_NODE_RESIZING), true);
}
private void layoutRadial() {
AbstractLayoutAlgorithm layout = new RadialLayoutAlgorithm(LayoutStyles.NO_LAYOUT_NODE_RESIZING);
graph.setLayoutAlgorithm(layout, true);
}