I am drawing a state transition diagram using LibreOffice draw on Ubuntu 11.04. I am able to get almost everything that I needed except the final state. Typically we use two circles embedded in for showing a final state of a state transition diagram. Could someone help me to do that? Please also let me know if there are any better tools for drawing state transition diagrams on Ubuntu. I have looked at Dia, but it is not also useful to draw final state of a state transition diagram like in this.