[Scilab-users] ?==?utf-8?q? xtitle hides figure cintent

[Antoine Monmayrant]

Hello Jens,

I'm sorry, I cannot try your code on scilab-5.5.2 : I just downloaded and installed it but it segfaults whenever using graphics (ie only scilab-cli works).
BTW, should I report this or development/bug fixes are over on 5.5.2?

If I remember correctly, updating graphics content and properties in a loop was a bit of a problem with 5.5.2 with some race conditions.
Results depended on the timing and for example something that worked OK when selecting + Ctrl+E in the editor was not behaving the same when using F5!
In particular, I had different results when outputting to a file (ie png driver or equivalent) or to an interactive plot.

Here are a couple of thinks to try that I had to resort to with 5.5.2:
- try to run your code by using selection + Ctrl+E, maybe by running small chunks at a time. If you get the intended results, it confirms you are facing a race condition.
- try different syntaxes that should be equivalent like fig.children.x_label.text='foo' instead of xtitle('foo') or fig.visible='on' instead of  set(fig,'visible','on').
- add some pauses, ie sleep(10) between some of the graphics changes.
- try again: like repeat the set(fig,'visible','on');  twice.

Hope it helps, let us know whether it works or not.

Cheers,

Antoine
 
 
Le Lundi, Mars 16, 2020 22:46 CET, Jens Simon Strom <j.s.strom at hslmg.de> a écrit: 
 
> Hallo Scilab family,
> 
> After two decades of using Scilab I was not able to fix the following 
> problem.
> 
> fig=figure('visible','off');
> plot(0:5,0:5)
> //xtitle('xtitle hides the figure content.')
> set(fig,'visible','on'); The script does what I expect. However when 
> uncommenting xtitle the figure is blank (Version 5.5.2*). What can I do? 
> The background of this question is a script which creates some 10 
> figures which are filled with polylines in a loop. Whithout the visible 
> off/on there is a nervous flicker of graphics which I want to avoid. 
> Butxtitle is a must. *) I cannat go to Version 6 because most of my 
> earlier scripts would not run. Regards Jens
>