[kepler-dev] Question on linking two multiports

[Ilkay Altintas]

Norbert, Christopher,

Thanks for the tips. They might be a quick hack solution for what I  
would like to do, but I'm afraid it is not dynamic enough. (If I  
understood it correctly.)

I'm trying to get data from a sensor dat logger and send the channel  
data through a multiport. So the width of the link will change each  
time I access to the data logger server dynamically.

I tried to set it up in the actor code, but of course it is not the  
port which has the width so I couldn't set it up from the port.

So maybe I can get the relations the actor is linked to at runtime  
and set the width of that relation. Do you think this would choke?

Thanks!
-ilkay

On May 4, 2007, at 12:27 PM, Christopher Brooks wrote:

> Another trick is to place a relation between the two, connect
> the relation to either port, then right click on the relation and set
> the width.  The width will be displayed numerically next to the
> relation.
>
> This called a bus relation, it was introduced with this change
> to ptolemy/vergil/kernel/RelationController.java:
>> revision 1.23
>> date: 2005/06/27 23:01:56;  author: eal;  state: Exp;  lines: +32 -3
>> Display bus relations better.
>
> This change is present in Ptolemy II 6.0.  I'm not sure about 5.0
>
> See also
> http://www.mail-archive.com/ptolemy- 
> hackers at bennett.eecs.berkeley.edu/msg00271.html
>
> I'm not sure why we don't display the width of links.  It could be
> because links are not first class objects?  We can set the width of
> a link to values other than 1, but there is no obvious change.  I
> believe Edward had a fix for this, but it was lost.
>
> _Christopher
>
> Norbert writes:
> --------
>
>     Hi Ilkay,
>
>     Yes, there is. You should set the single link's width to the  
> desired
>     number. I am not sure if current kepler allows you to double  
> click on a
>     link, but you can edit the xml file and edit the width  
> property's value in
>
>        <relation name="relation"  
> class="ptolemy.actor.TypedIORelation">
>            <property name="width"  
> class="ptolemy.data.expr.Parameter" value="2"
>>
>            </property>
>        </relation>
>
>     of the given relation/link.
>
>     Best regards
>     Norbert
>
>
>     On Fri, 4 May 2007, Ilkay Altintas wrote:
>
>> Hi Hackers,
>>
>> Is there a way to send a group of data channels from a multiport to
>> another multiport in a single relation, i.e., without having to
>> create multiple links between them?
>>
>> Thanks on advance,
>> -ilkay
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>> kepler-dev
>>
>
>           Norbert Podhorszki
>         ------------------------------------
>           University of California, Davis
>           Department of Computer Science
>           1 Shields Ave, 2236 Kemper Hall
>           Davis, CA 95616
>           (530) 752-5076
>           pnorbert at cs.ucdavis.edu
>           ----------------------------------
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> kepler-dev
> --------

-- 
Ilkay ALTINTAS
Lab Director, Scientific Workflow Automation Technologies (SWAT)
San Diego Supercomputer Center(SDSC), UCSD
9500 Gilman Drive, MC: 0505  La Jolla, CA  92093-0505
phone: (858) 822-5453                        fax: (858) 534-8303
web: http://users.sdsc.edu/~altintas


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