30 Oct
2014
30 Oct
'14
8:40 p.m.
Hi Tommaso!
Well spotted! connectFrom: and connectTo: may return a simple object or a collection. This is handy to not have a method called connectFromAll: and connectToAll: (as we have in Mondrian). But String and Symbol are considered as collections.
Update Roassal2 and you will have the correct behavior
Cheers, Alexandre
--
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Alexandre Bergel http://www.bergel.eu
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> On Oct 30, 2014, at 1:51 PM, Tommaso Dal Sasso tommaso.dalsasso@gmail.com wrote:
>
> Hello,
>
> I am a bit puzzled by the behavior of Roassal2 using RTGraphBuilder.
> Inspired by the Agile Visualization Book, I tried some scripts, but I ran into some problems regarding edges.
>
> I used this simple script to connect some random dots:
>
> nodes := #(one two three four five).
> b := RTGraphBuilder new.
>
> b edges
> color: Color red;
> connectFrom: [ :e | nodes atRandom ].
>
> b nodes color: Color gray.
> b layout grid.
>
> b addAll: nodes.
> b
>
>
> It worked to draw the dots, but it didn't displayed any edge. The weird thing is that if I put integers or characters inside nodes, it works correctly.
>
> Example -- this works:
>
> nodes := #(1 2 3 4 5 6).
> b := RTGraphBuilder new.
>
> b edges
> color: Color red;
> connectFrom: [ :e | nodes atRandom ].
>
> b nodes color: Color gray.
> b layout grid.
>
> b addAll: nodes.
> b
>
>
> Am I doing something wrong?
>
> Thanks,
> Tommaso
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