[Chicago] Drawing DAG in networkx

[Joshua Herman]

Uh, now that I think about it you might want to layout the 3600 node DAG
using a spring layout
http://networkx.lanl.gov/reference/generated/networkx.drawing.layout.spring_layout.html#networkx.drawing.layout.spring_layout
You might want to consider exporting the graph in graphviz and doing
drawing in a different program like Gephi.

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On Thu, May 31, 2012 at 3:35 PM, Oren Livne <livne at uchicago.edu> wrote:

>  Unfortunately, networkx.pygraphviz_layout(graph) is also extremely slow.
> Why is a such small DAG taxing on those layout programs? One
> topologically-sort nodes and place them accordingly fairly quickly. Can I
> supply an initial guess (=guide) for node positions to the layout calls?
> Doesn't seem like it from the docs.
>
> Thanks,
> Oren
>
>
> On 05/31/2012 02:04 PM, Joshua Herman wrote:
>
> Pygraphviz can output SVG
> http://networkx.lanl.gov/pygraphviz/pygraphviz.pdf the thing I suggested
> before.
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> On Thu, May 31, 2012 at 1:55 PM, Brian Ray <brianhray at gmail.com> wrote:
>
>> I am not sure about networkx. But I presume it is something that spits
>> out SVG no?
>>
>> If your ok with pushing (blitting) pixels yourself,  I do know is that
>> matplotlib uses AGG http://www.antigrain.com/ for one drawing backend.
>> The author is probably still on this list and presents from time to
>> time.
>>
>> Likewise, I believe you can go to Postscript or SVG with your own
>> tools and let whatever rendering that needs done to be done on case by
>> case basis.
>>
>> --
>> Brian Ray
>> @brianray
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