Easily export a graph to .dot format
#include "graphviz_utility.h"
int main()
{
GraphvizUtility util;
util.AddNode(1,"A", "fillcolor=blue, style=\"filled\",");
util.AddNode(2,"B");
util.AddNode(3,"C");
util.AddEdge(1,2,"A-B");
util.AddEdge(2,3,"B-C");
util.AddEdge(3,1,"C-A");
util.AddEdge(1,1,"A-A");
util.Export("example.dot");
return 0;
}