Radio selectedRadio = selectedMote.getInterfaces().getRadio();
FontMetrics fm = g.getFontMetrics();
g.setColor(Color.BLACK);
DirectedGraphMedium radioMedium = (DirectedGraphMedium) simulation.getRadioMedium();
/* Print transmission success probabilities */
DestinationRadio[] dests = radioMedium.getPotentialDestinations(selectedRadio);
if (dests == null || dests.length == 0) {
String msg = "No edges";
int msgWidth = fm.stringWidth(msg);
g.setColor(Color.BLACK);
g.drawString(msg, x - msgWidth/2, y + 2*Visualizer.MOTE_RADIUS + 3);