docs: public static void drawVariables(String title, boolean[] empty, GeometricShapeVariable[] vars) {
  		JTSDrawingPanel panel = new JTSDrawingPanel(); 
  		JFrame frame = new JFrame(title); 
  		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
  		frame.add(panel); 
  		frame.setSize(500, 500);
  		for (int i = 0; i < vars.length; i++) {
  			panel.emptyGeoms.put(vars[i].getID()+"", empty[i]);
  			panel.addGeometry(vars[i].getID()+"",((GeometricShapeDomain)vars[i].getDomain()).getGeometry());
  		}
  		frame.setVisible(true);     	
  	}