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[triquetrum-dev] Fwd: Re: Ptolemy implementation for relation reconnecting away from a vertex
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Edward asked me to forward this because his email to triquetrum-dev
bounced.
_Christopher
-------- Forwarded Message --------
Vergil works like this:
If the dragging is from port to port, then you should create a new relation.
If the dragging is from port to relation or vice versa, then you
should use the existing relation.
Edward
---------
Edward A. Lee
EECS, UC Berkeley
eal@xxxxxxxxxxxxxxxxx
> On Apr 7, 2016, at 8:51 AM, Erwin de Ley <erwin.de.ley@xxxxxxxxxx> wrote:
>
> Dear ptolemy hackers,
>
> I'm almost there to implement Ptolemy II's "vertex" relation concept (a.k.a. the black diamond) in Triquetrum's editor.
>
> There's one last remaining issue (as far as I know now) : when reconnecting a link away from a vertex, I still need to figure out how/where to decide whether to assign a new relation to the link or not.
>
> E.g. starting from :
> <hijccdcj.png>
> there is 1 relation linking Const via the Vertex to the Display actor.
>
> After reconnecting to the Display2 actor, the result in Vergil is a new relation2 :
> <icgbdibh.png>
>
> In the current Triquetrum status, the result is still the single, but graphically disconnected, relation that now somehow links Const to both Display actors.
> I.e. the reconnect action does not create a new relation2.
>
> Could you point me to where to look in Ptolemy's code to figure out all the possible reconnection cases and how to decide when creating a new relation is required?
>
> thanks!
> erwin
>
>
>
>
> This message is sent via the ptolemy-hackers mailing list, see
> https://lists.eecs.berkeley.edu/sympa/info/ptolemy-hackers
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