[Scilab-users] Xcos - Problem with tf variable name in a superblock

[Perrichon]

Hello Paul,

 

Thanks you for your quit response

 

It confirms that « tf » is a reserved word in Xcos context, and must be used
with caution.

In fact, I shall drive in September a student in Master2 on a subject
concerning turbines simulation, and I inherit a program done with Xcos where
condition « if ~exists(« foo ») foo=xx » is systematically used, and I see a
big number of Xcos blocks and hundreds of variables.

This is correctly done because all variables are not necessary transmitted
when launching Xcos. Part of them are redefined, part of them are values by
default, which explains this program structure done by a student a few year
ago.

 

So, has to control that, my main question was to know where I could finf a
list of reserved words or variables in xcos.

We have together seen that « tf » was one of them, which also define the «
Final Integration Time »

 

I had a look on the Help in Scilab (describing a lot of thing », very
clearly, but nothing about « tf » for example.

 



 

For example, what are the others reserved keyword for the rest of these
variables, in the above table ?

 

A list would be welcome, or a reference to access this one.

 

 

Your sincerely,

Pierre

 

 

Before printing, think about ENVIRONMENTAL responsabity

 

De : users [mailto:users-bounces at lists.scilab.org] De la part de Paul
Bignier
Envoyé : lundi 13 juin 2016 09:09
À : Users mailing list for Scilab <users at lists.scilab.org>
Objet : Re: [Scilab-users] Xcos - Problem with tf variable name in a
superblock

 


Hello Pierre,

100000 is indeed the "Final integration time" parameter in the
Simulation->Setup menu.
By using exists() (you might want to use isdef()
<https://help.scilab.org/docs/5.5.2/en_US/isdef.html>  instead) you don't
override the existing parameters,
and in Scilab, functions can see the superior-scope variables (here, 'tf').
So just write "tmf=3; tf=2;" in your context and everything should run fine.

Regards,
Paul

On 06/10/2016 06:47 PM, Perrichon wrote:



Hello

 

I retrieve an old xcos program about hydraulic simulation.

 

Worry :

A superblock containing a vairable « tf «  doesn’t match the value
programmed in the initialization part.

If « tf » a reserved word and where can I find a  reserved list

Or is it a bugg ?

 

Are other variables concerned?

 

Thanks for yout help

 

Regards.

 








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Paul BIGNIER
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