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List:       graphviz-interest
Subject:    Re: [graphviz-interest] pinning nodes in neato: keeping them
From:       Lars Huttar <lars_huttar () sil ! org>
Date:       2011-01-20 4:27:17
Message-ID: 4D37B9A5.7010904 () sil ! org
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On 1/19/2011 4:45 PM, Emden R. Gansner wrote:
> On 1/19/11 5:16 PM, Lars Huttar wrote:
>> So in stress.c, if I follow each call to conjugate_gradient_mkernel()
>> (or at least the one inside "if (havePinned)") with some code to coerce
>> the coords of each (non-pinned) node to be non-negative, that would at
>> least qualify as a naive implementation?:-)
> That's what I would try.
>
>     Emden
>
>
I changed the lines
            if (!isFixed(np))
               coords[k][i] = tmp_coords[i];
to
            if (!isFixed(np))
               coords[k][i] = MAX(0.0, tmp_coords[i]);

Now I'm trying to test the result.
I'm building on Linux.
However when I run neato, even before rebuilding with the above change,
I get an error about cairo being out of memory.
Maybe I need to stop using the development snapshot
(graphviz-2.27.20110119.0545.tar.gz) and use the stable release version.

Lars

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