graphviz

Graphviz and ascii output

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If you are not perl averse, graph-easy (and the associated Graph::Easy package) can do exactly that: http://search.cpan.org/~tels/Graph-Easy/ http://search.cpan.org/~tels/Graph-Easy/bin/graph-easy On Mac you can install this with Homebrew and cpan: brew install cpanminus cpan Graph::Easy It’s easy to invoke after installation: cat dotfile.dot | /opt/local/libexec/perl5.12/sitebin/graph-easy

Why is pydot unable to find GraphViz’s executables in Windows 8?

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The problem is that the path to GraphViz was not found by the pydot module as shown in the traceback: ‘GraphViz\’s executables not found’ I solved this problem on my windows 7 machine by adding the GraphViz bin directory to my computer’s PATH. Then restarting my python IDE to use the updated path. Install GraphViz … Read more

Visualizing Undirected Graph That’s Too Large for GraphViz? [closed]

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Graphviz itself provides a solution for rendering large graphs. Namely, Graphviz includes sfdp, a multiscale version of fdp (also in graphviz, similar to neato) for the layout of large undirected graphs which has been useful for drawing large graphs (70k nodes, 500k edges) in my project. You can find documentation for this software on the … Read more

How to prevent edges in graphviz to overlap each other

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I’m assuming you have a directed graph which you layout with dot. I don’t think there’s a magic switch to prevent overlapping edges. Graphviz tries to do that out of the box. Some suggestions that may help, depending on the graph: edge concentrators (concentrate=true): Merge multiple edges with a common endpoint into single edges, and … Read more

Graphviz subgraph doesn’t get visualized

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You’ll have to prefix the name of your subgraphs with cluster: subgraph clusterstep1 { and subgraph clusterstep2 { in order to get the style and label. From the graphiz documentation, section “Subgraphs and Clusters”: The third role for subgraphs directly involves how the graph will be laid out by certain layout engines. If the name … Read more

Making a Legend/Key in GraphViz

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digraph { rankdir=LR node [shape=plaintext] subgraph cluster_01 { label = “Legend”; key [label=<<table border=”0″ cellpadding=”2″ cellspacing=”0″ cellborder=”0″> <tr><td align=”right” port=”i1″>item 1</td></tr> <tr><td align=”right” port=”i2″>item 2</td></tr> <tr><td align=”right” port=”i3″>item 3</td></tr> <tr><td align=”right” port=”i4″>item 4</td></tr> </table>>] key2 [label=<<table border=”0″ cellpadding=”2″ cellspacing=”0″ cellborder=”0″> <tr><td port=”i1″>&nbsp;</td></tr> <tr><td port=”i2″>&nbsp;</td></tr> <tr><td port=”i3″>&nbsp;</td></tr> <tr><td port=”i4″>&nbsp;</td></tr> </table>>] key:i1:e -> key2:i1:w [style=dashed] key:i2:e -> … Read more