[Scilab-Dev] Blank graphic windows...

[Jonathan Blanchard]

Hi thanks for the reply,

First usecanvas is not defined inside my build of scilab I get the
usual undefined variable error when trying to call it.

Secondly, I get this issue with the plain 5.0.3 source and also with
one of the recent nightlies. 1230639640 to be exact.

I know plotting used to work in 5.0.2 and would like to compile it
again to double check, do you keep your old release somewhere? (I do
not seem to be able to access the old svn repository to get it)

System info :

Opensolaris 2008.11 64 Bits
Nvidia Xorg driver 177.80 server version 11.0
Nvidia Quadro NVS 110M


Jonathan Blanchard



On Mon, Jan 5, 2009 at 5:46 AM, Bruno JOFRET <bruno.jofret at scilab.org> wrote:
> Sylvestre Ledru a écrit :
>>
>> Hello Jonathan,
>>
>> Le mercredi 31 décembre 2008 à 16:10 -0400, Jonathan Blanchard a écrit :
>>>
>>> Hi,
>>>
>>> I'm trying to create a Solaris package for Scilab
>>
>> Great, I like this idea! Don't hesitate if you need help on this.
>>
>>>  and everything work
>>> except I get a blank window when plotting. Java raise no exceptions
>>> which mean that all the required libraries are found. I get a blank
>>> window if I try a plot command once, If I do the plot command again
>>> without closing the window the curve get displayed but not the axis.
>>> If and only if I resize the graphic windows and then hit redraw the
>>> full graphic get displayed.
>>>
>>> Any insight on this situation?
>>
>> Seems to ben an OpenGL issue. I will try to reproduce this issue next week
>> on my Solaris.
>> Maybe Solaris needs the graphic to be refreshed.
>>
>> Sylvestre
>>
>>
> Hi Jonathan,
>
> We are using a "GLJPanel" (a swing openGL component) to display scilab
> graphics : plot3d, plot ...
> Unfortunately this component uses some high level OpenGL primitives that are
> not fully supported depending on the OS / Video Card / ... you are using.
>
> There is an alternative component "GLCanvas" (AWT + OpenGL) you can use to
> render Scilab graphics. You can dynamically activate this component through
> Scilab using "usecanvas"
>
>
> --> usecanvas(%t)
> Will force the use of "GLCanvas" for plot rendering.
>
> --> usecanvas(%f)
> (default) Will use "GLJPanel" for rendering if it's not in our "black list"
> architecture.
>
>
> _BUT_ the use of the "GLCanvas" will disable some capabilities such as
> mixing plots and uicontrol for instance. That's why it's not the default
> behavior.
>
> Please try this option and let us know if it solve your issue.
>
> Moreover we are pretty interested in some further information on your
> platform such as your video card model, OS version, window manager, the
>  scilab version you are using, a.s.o ...
>
> Thanks for Using Scilab ;-)
>
> --
> Bruno JOFRET
>
>      Software Designer
>  ___ SCILAB - DIGITEO ___
>  Tel : (+33/0)1.39.63.58.63
> Mailto : bruno.jofret at scilab.org
>   http://www.scilab.org
>   http://www.digiteo.fr
>