Download of igv-win32-64-en-src.zip (igv-win32-64-en-src.zip ( external link: SF.net): 9,478,369 bytes) will begin shortly. If not so, click link on the left.
IGV allows you to easily create and edit a graph, automatically places the graph on the plane (!!!), search for the minimal path (+coloring vertices), search center (+coloring), search vertices degree, search vertices eccentricity and others.