[scilab-Users] many plots

[Stéphane Mottelet]

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


S.