Re: [igraph] Help for the layout of community structures

[Gabor Csardi]

Zhigang Wu,

there are three ways i think.

1) Use the R interface to igraph, see homepage. You need to install
   GNU R (www.r-project.org). It can basically export graphics in
   most formats, like SVG, JPEG, PNG, WMF/EMF on windows, etc.
   Visualization is somewhat limited, e.g. there are no vertex shapes
   available, vertices are always circles, etc.

2) Use the Python interface to igraph, see homepage. You need to write 
   Python programs for this. The visualization capabilities of the
   Python interface are in some respects more, in others less than the
   ones of the R interface. (Maybe not, Tamas will correct me i think,
   if Python is already superior. It has been improving a lot recently.)

3) Save your graph in GML/GraphML/Pajek format and use an "external" 
   tool, like Cytoscape, GraphViz, Pajek or NetworkX. There are many,
   search for 'graph visualization'.

For 1) and 2) see 'Screenshots' on the igraph homepage.

If you don't know any of the tools in 3) and you don't want to draw
really fact things, then my personal advice is to learn Python or R,
it is a much better investment.

Gabor

On Tue, Mar 18, 2008 at 11:35:23AM +0800, Zhigang Wu wrote:
> Dear all,
> 
>  
> 
> Finally I got the community structure of my electrical power system profit 
> from
> Gabor’s help. Now there is another problem: How can I visualize the community
> structure? I want to show it in an intuitional way, for example, I want to 
> plot
> the topology with different colors for different communities, so can anybody
> tell me if there are some tools to do the job?
> 
>  
> 
> Thanks a lot!
> 
>  
> 
> Best Regards
> 
>  
> 
> Zhigang Wu
> 
>  
> 
> College of Electric Power
> 
> South China University of Technology
> 
>  
> 

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-- 
Csardi Gabor <address@hidden>    UNIL DGM