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pelikhan / quickgraph

Graph Data Structures And Algorithms for .NET
MIT License
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GraphvizAlgorithm.WriteEdges(..) does not differ between directed and undirected edges #1

Open DaveInCaz opened 6 years ago

DaveInCaz commented 6 years ago

I noticed this problem today but then found that it already had been reported here: https://quickgraph.codeplex.com/workitem/25880

The summary is:

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

Because of this the GraphViz dot program will actually throw an error. For the time being I am manually replacing the -> with -- using a string replace before writing to the .dot file.

Thanks