Roassal layouts and trachelShape MNU

>> I am having an issue with setting up a Roassal layout. I guess that to make force based layouts work, I have to add the line
>>
>> view edges do: [ :e | e trachelShape pushBack ].
>
> This has the effect of moving the edges back in the view. Nodes will therefore appear in front of the edges.
>
> You do not need edges actually for the force based layout. Consider this example:
> -=-=-=-=-=-=-=-=-=
> | v es |
> v := RTView new.
> es := (RTEllipse new size: 20; color: (Color blue alpha: 0.4)) elementsOn: (1 to: 30).
> v addAll: es.
> RTForceBasedLayout on: es.
> v
> -=-=-=-=-=-=-=-=-=
>
> <Screen Shot 2014-04-23 at 4.37.59 PM.png>
>
>
>> However when I do this, there is a MNU in TRCompositeShape>>pushback, because the canvas instvar is nil. I am doing what is  essentially the following code:
>>
>> “in a loop, adding to an edges collection”
>> edges add: (((RTEdge from: efrom to: eto) + (RTLine new color: color) + (RTArrow new color: color)) @ (RTLabelled new text: trans name; color: color; view: view)).
>>
>> “later"
>>
>> “adding the edges to the view all at once and do layout magic"
>> view addAll: edges.
>> view edges do: [ :e | e trachelShape pushBack ]. “<— MNU”
>>
>> What should I do to fix this?
>
> You’ve found a bug in TRCompositeShape. I’ve just fixed it
>
> Cheers,
> Alexandre
>
>>
>> ---> Save our in-boxes! http://emailcharter.org <---
>>
>> Johan Fabry   -   http://pleiad.cl/~jfabry
>> PLEIAD lab  -  Computer Science Department (DCC)  -  University of Chile
>>
>>
>> _______________________________________________
>> Moose-dev mailing list
>> [hidden email]
>> https://www.iam.unibe.ch/mailman/listinfo/moose-dev
>
> _______________________________________________
> Moose-dev mailing list
> [hidden email]
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>
> Ok, thanks for the help. Playing with the length instvar of the layout solved my problem of having the nodes too close together.
>
> On Apr 23, 2014, at 4:43 PM, Alexandre Bergel <[hidden email]> wrote:
>
>>> I am having an issue with setting up a Roassal layout. I guess that to make force based layouts work, I have to add the line
>>>
>>> view edges do: [ :e | e trachelShape pushBack ].
>>
>> This has the effect of moving the edges back in the view. Nodes will therefore appear in front of the edges.
>>
>> You do not need edges actually for the force based layout. Consider this example:
>> -=-=-=-=-=-=-=-=-=
>> | v es |
>> v := RTView new.
>> es := (RTEllipse new size: 20; color: (Color blue alpha: 0.4)) elementsOn: (1 to: 30).
>> v addAll: es.
>> RTForceBasedLayout on: es.
>> v
>> -=-=-=-=-=-=-=-=-=
>>
>> <Screen Shot 2014-04-23 at 4.37.59 PM.png>
>>
>>
>>> However when I do this, there is a MNU in TRCompositeShape>>pushback, because the canvas instvar is nil. I am doing what is  essentially the following code:
>>>
>>> “in a loop, adding to an edges collection”
>>> edges add: (((RTEdge from: efrom to: eto) + (RTLine new color: color) + (RTArrow new color: color)) @ (RTLabelled new text: trans name; color: color; view: view)).
>>>
>>> “later"
>>>
>>> “adding the edges to the view all at once and do layout magic"
>>> view addAll: edges.
>>> view edges do: [ :e | e trachelShape pushBack ]. “<— MNU”
>>>
>>> What should I do to fix this?
>>
>> You’ve found a bug in TRCompositeShape. I’ve just fixed it
>>
>> Cheers,
>> Alexandre
>>
>>>
>>> ---> Save our in-boxes! http://emailcharter.org <---
>>>
>>> Johan Fabry   -   http://pleiad.cl/~jfabry
>>> PLEIAD lab  -  Computer Science Department (DCC)  -  University of Chile
>>>
>>>
>>> _______________________________________________
>>> Moose-dev mailing list
>>> [hidden email]
>>> https://www.iam.unibe.ch/mailman/listinfo/moose-dev
>>
>> _______________________________________________
>> Moose-dev mailing list
>> [hidden email]
>> https://www.iam.unibe.ch/mailman/listinfo/moose-dev
>
>
>
> ---> Save our in-boxes! http://emailcharter.org <---
>
> Johan Fabry   -   http://pleiad.cl/~jfabry
> PLEIAD lab  -  Computer Science Department (DCC)  -  University of Chile
>
>
> _______________________________________________
> Moose-dev mailing list
> [hidden email]
> https://www.iam.unibe.ch/mailman/listinfo/moose-dev