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List:       graphviz-interest
Subject:    Re: [graphviz-interest] Why does setting splines=true cause edge
From:       "Emden R. Gansner" <erg () research ! att ! com>
Date:       2007-10-05 22:24:36
Message-ID: 4706B9A4.7010907 () research ! att ! com
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Ryan Schmidt wrote:
>
> On Sep 26, 2007, at 16:31, Ryan Molden wrote:
>
>>   If I have the following input file
>>
>> digraph "Foo" {
>> graph [overlap=false,center=true];
>> A [Label="Node A"];
>> B [Label="Node B"];
>> A->B [Label="Unique Edge 1"];
>> A->B [Label="Unique Edge 2"];
>> }
>>
>> and use it as input to neato I get the expected graph (two nodes with 
>> two edges between the nodes).  If however I add the splines=true 
>> attribute to the graph it combines the edges into a single edge.  Is 
>> this expected and is there any way around this?
>
> I can confirm that when you add splines=true, the edges become nonunique.
>
> Note that you probably want "label" instead of "Label"

At present, except for dot, Graphviz doesn't support multiedges when 
splines or polylines are used. This is one of the missing features
which we really want to fix.

    Emden

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