[kepler-dev] Reg. IF_THEN_ELSE loop

[Sivagowri Swaminathan]

Hi Edward and Dan

Thanks for your suggestions. Using Edwards suggestion, I used a boolean 
switch [boolean mux also worked] to direct the tokens onto two different 
paths.
This is my construction:
1. I used a ramp for incrementing from 1 .
2. A constant value = 3 was compared to the ramp value using boolean equals 
actor.
3. The output from the equals actor was directed to a boolean mux, which had 
2 string constants
'true output' and 'false output' as inputs to the mux.
4. The output of the mux is connected to a text display.

5. as per Dan's suggestion, I used a PN director. [Initially I used a sdf 
director.]

since 1 != 3, the output of mux showed 'false output' on the display and it 
stopped.
But the ramp was not incremented at all. I expected a series of false, 
false, true, false ... in the display but I received only one output.

If I used an SDF director set to 20 iterations, I get the first output only. 
If I used a PN director, I get an error message stating that the queue size 
exceeded the maximum limit.

questions

1. I want the output as when the ramp gets incremented, what director I 
should use?
2. How do I get documentation for the actors? the right-click, get 
Documentation doesn't work and errors out saying I need to get the document 
component. Where to get this component from?

alternatively, I used 'openActor' to see the source code and inferred what 
the actor tries to do. It helped me a lot to understand the actor.

Thanx
Siva


>From: "Edward A. Lee" <eal at eecs.berkeley.edu>
>To: "Sivagowri Swaminathan" <sivagowri at hotmail.com>
>CC: Kepler-dev at ecoinformatics.org
>Subject: Re: [kepler-dev] Reg. IF_THEN_ELSE loop
>Date: Mon, 27 Mar 2006 09:04:26 -0800
>
>
>The BooleanToAnything actor can convert true/false into two
>distinct strings.
>
>Alternatively, you can control a BooleanSwitch actor and route
>tokens to one of two subsystems.
>
>A third alternative is to use the newly added Case actor,
>in actor/hoc in the Ptolemy II default configuration...
>I'm not sure whether this is visible in the Kepler library...
>
>Edward
>
>At 06:07 PM 3/26/2006, Sivagowri Swaminathan wrote:
>>Hi all
>>
>>I have a problem implementing an if-then-else kind of workflow and would
>>like to get help regarding the same.
>>
>>I want to implement a logic such as this:
>>
>>if some constant's value = x, then I need to display some message else I
>>need to display some other msg.
>>
>>The comparator and the booleans equals actor(operator) actually outputs
>>results such as true/false. how do I create an action based on the output
>>from the actors?
>>
>>I running behind on a deadline and would like to get help on this asap.
>>
>>Thanx
>>Siva
>>
>>
>>_______________________________________________
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>>Kepler-dev at ecoinformatics.org
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>
>------------
>Edward A. Lee
>Professor, Chair of the EE Division, Associate Chair of EECS
>231 Cory Hall, UC Berkeley, Berkeley, CA 94720
>phone: 510-642-0253 or 510-642-0455, fax: 510-642-2845
>eal at eecs.Berkeley.EDU, http://ptolemy.eecs.berkeley.edu/~eal
>