If I export an undirectedgraph into graphviz, the edges will appear in the dot file as:
_Vertex1 -> Vertex2_
But because of the graph is undirected the output should look like:
_Vertex1 -- Vertex2_
_Vertex1 -> Vertex2_
But because of the graph is undirected the output should look like:
_Vertex1 -- Vertex2_