[scilab-Users] many plots

[Sylvestre Ledru]

Le jeudi 23 septembre 2010 à 11:12 +0200, Stéphane Mottelet a écrit :
> Le 23/09/2010 10:51, Sylvestre Ledru a écrit :
> > Le jeudi 23 septembre 2010 à 10:47 +0200, StŽéphane Mottelet a écrit :
> >    
> >> David PICARD a écrit :
> >>      
> >>>   Hi,
> >>>
> >>> I have to make about 100 2D plots, and I'd like to send them to PNG
> >>> images instead of creating 100 windows on my desktop. How should I do
> >>> that ?
> >>>
> >>> David.
> >>>
> >>>
> >>>        
> >> Hi,
> >>
> >> actuallly, since version 5, Scilab need to create the graphics on screen
> >> before
> >> exporting them, even by using the driver/xinit/xend stuff. If you need
> >> a "silent" export, use Scilab 4.
> >>      
> > Actually, under GNU/Linux (and probably Mac OS X), you can manage this
> > through Xvfb:
> > http://en.wikipedia.org/wiki/Xvfb
> >
> > Sylvestre
> >
> >
> >    
> 
> Although Xvfb accepts the following syntax
> 
> Xvfb :100 -ac -extension GLX &
> 
> it does not seem to actually implement any GLX support :
> 
> scilab -display :100 -e "plot;xs2png(0,'toto.png');quit"
> 
> (process:1947): Gtk-WARNING **: Locale not supported by C library.
>      Using the fallback 'C' locale.
> Xlib:  extension "GLX" missing on display ":100.0".
> Xlib:  extension "GLX" missing on display ":100.0".
> Xlib:  extension "GLX" missing on display ":100.0".
> Xlib:  extension "GLX" missing on display ":100.0".
> An error occurred when Scilab tried to open a Canvas: glXGetConfig 
> failed: error code GLX_NO_EXTENSION
Well, I don't know why it is failing and I haven't tried this myself but
I have a few reports from users telling me that this solution is
working.

Sylvestre