[Scilab-users] Bitmap export

[Antoine Monmayrant]

Le Vendredi 17 Janvier 2014 00.42 CET, Stefan Du Rietz <sdr at durietz.se> a écrit: 
 
> On 2014-01-17 00:33, Stefan Du Rietz wrote:
> --------------------
> > On 2014-01-17 00:20, Stefan Du Rietz wrote:
> > --------------------
> >> On 2014-01-16 23:13, Antoine Monmayrant wrote:
> >> --------------------
> >>>
> >>> Le Jeudi 16 Janvier 2014 21.35 CET, Stefan Du Rietz <sdr at durietz.se>
> >>> a écrit:
> >>>
> >>>> Hi Calixte,
> >>>> I would rather not, because there is no other problem with the Linux
> >>>> driver and I remember other problems with the proprietary driver
> >>>> (besides that it is proprietary ...). And why is the figure OK if
> >>>> there is an error in the driver? It is only after the export that the
> >>>> error shows up!
> >>>
> >>> Hi Stefan,
> >>>
> >>> Random idea again (previous one was not helping you much): did you
> >>> try to directly write your bitmap without plotting in a figure:
> >>>
> >>> driver('PNG');
> >>> xinit('mypngfile.png');
> >>> plot3d();
> >>> xend();
> >>> driver('X11');
> >>>
> >>> Is the problem still there?
> >>>
> >>> Antoine
> >>>>
> >>>> /Stefan
> >>>>
> >>>>
> >> Hi Antoine,
> >> are we supposed to reply above as earlier or not ;-(
> >>
> >> When I did as you proposed:
> >>
> >> x = [0:0.05*%pi:2*%pi]';
> >> f = scf(1);
> >> driver('PNG');
> >> xinit('gridtest.png');
> >> plot2d(x, sin(x))
> >> xgrid()
> >> xend();
> >> driver('X11');
> >>
> >> it was OK!
> >>
> >> Regards /Stefan
> >>
> > And, of course, thank you!
> >
> > Regards /Stefan
> >
> So, Calixte, it was not the graphics driver, was it? Shall I report a bug?

Well, I think this is a graphics driver issue (but I am clearly not as knowledgeable as Calixte when it comes to Scilab internal stuff).
Last time we used this approach (issue with plots in figure / everything fine when plotted to file directly) to determine the bug was in the graphic driver, not really in Scilab.

Cheers,

Antoine

> 
> Regards /Stefan
> 
> >>
> >>>> On 2014-01-13 10:52, Calixte Denizet wrote:
> >>>> --------------------
> >>>>> Weird... imho it is a problem with the driver of your GC.
> >>>>> Could you try to install proprietary driver please ?
> >>>>>
> >>>>> Regards
> >>>>>
> >>>>> Calixte
> >>>>>
> >>>>> On 13/01/2014 10:50, Stefan Du Rietz wrote:
> >>>>>> Hi Calixte,
> >>>>>> here you are!
> >>>>>>
> >>>>>> Regards /Stefan
> >>>>>>
> >>>>>> On 2014-01-13 10:43, Calixte Denizet wrote:
> >>>>>> --------------------
> >>>>>>> Hi Stefan,
> >>>>>>>
> >>>>>>> Could you attach the guilty picture please ?
> >>>>>>>
> >>>>>>> Regards
> >>>>>>>
> >>>>>>> Calixte
> >>>>>>>
> >>>>>>> On 13/01/2014 10:37, Stefan Du Rietz wrote:
> >>>>>>>> On 2014-01-13 09:16, Antoine Monmayrant wrote:
> >>>>>>>> --------------------
> >>>>>>>>> On 01/13/2014 01:27 AM, Stefan Du Rietz wrote:
> >>>>>>>>>> Hi,
> >>>>>>>>>> when I export a figure to a bitmap file (PNG, JPG, GIF, PPM,
> >>>>>>>>>> BMP)
> >>>>>>>>>> from Xubuntu Linux, it has the y axis turned about 30 degrees
> >>>>>>>>>> clockwise and is divided in two parts. Has anybody else
> >>>>>>>>>> experienced
> >>>>>>>>>> that?
> >>>>>>>>>>
> >>>>>>>>>> Regards /Stefan
> >>>>>>>>>> _______________________________________________
> >>>>>>>>>> users mailing list
> >>>>>>>>>> users at lists.scilab.org
> >>>>>>>>>> http://lists.scilab.org/mailman/listinfo/users
> >>>>>>>>> Hi Stefan,
> >>>>>>>>>
> >>>>>>>>> Could you send us a small test script that produces the bogus
> >>>>>>>>> plot, so
> >>>>>>>>> we can give it a try?
> >>>>>>>>> Do you have a huge scaling factor between x and y?
> >>>>>>>>> Like mean(y)<mean(x)*10^-4 ?
> >>>>>>>>> If it is the case, try plot(x,y*10^4) (replacing 10^4 be the
> >>>>>>>>> inverse
> >>>>>>>>> of the y/x ratio).
> >>>>>>>>> There use to be a bug that produces this slant, but it is
> >>>>>>>>> corrected
> >>>>>>>>> now: see http://bugzilla.scilab.org/show_bug.cgi?id=11399 .
> >>>>>>>>>
> >>>>>>>>> Hope it helps,
> >>>>>>>>>
> >>>>>>>>> Antoine
> >>>>>>>>> _______________________________________________
> >>>>>>>>> users mailing list
> >>>>>>>>> users at lists.scilab.org
> >>>>>>>>> http://lists.scilab.org/mailman/listinfo/users
> >>>>>>>>>
> >>>>>>>> Hi Antoine,
> >>>>>>>> there is nothing wrong with the plot, only with the exported
> >>>>>>>> file!
> >>>>>>>> And even that is OK when exported from Windows 7.
> >>>>>>>>
> >>>>>>>> x = [0:0.05*%pi:2*%pi]';
> >>>>>>>> f = scf();
> >>>>>>>> plot2d(x, sin(x))
> >>>>>>>> xgrid()
> >>>>>>>>
> >>>>>>>> Now, from the figure menu: File > Export to ... > PNG (or any
> >>>>>>>> other)
> >>>>>>>>
> >>>>>>>> File > Vectorial export ... works OK.
> >>>>>>>>
> >>>>>>>> Regards /Stefan
> >>>>>>>>
> >>>>>>>>
> >>>>>>>> _______________________________________________
> >>>>>>>> users mailing list
> >>>>>>>> users at lists.scilab.org
> >>>>>>>> http://lists.scilab.org/mailman/listinfo/users
> >>>>>>>
> >>>>>>>
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>> _______________________________________________
> >>>>>> users mailing list
> >>>>>> users at lists.scilab.org
> >>>>>> http://lists.scilab.org/mailman/listinfo/users
> >>>>>
> >>>>>
> >>>>> --
> >>>>> Calixte Denizet
> >>>>> Software Development Engineer
> >>>>> -----------------------------------------------------------
> >>>>> Scilab Enterprises
> >>>>> 143bis rue Yves Le Coz - 78000 Versailles, France
> >>>>> http://www.scilab-enterprises.com
> >>>>>
> >>>>>
> >>>>>
> >>>>> _______________________________________________
> >>>>> users mailing list
> >>>>> users at lists.scilab.org
> >>>>> http://lists.scilab.org/mailman/listinfo/users
> >>>>>
> >>>>
> >>>> _______________________________________________
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> >>>> users at lists.scilab.org
> >>>> http://lists.scilab.org/mailman/listinfo/users
> >>>
> >>>
> >>>
> >>>
> >>>
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> >>>
> >>
> >>
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> >>
> >
> >
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> 
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