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From: Sascha on 27 Apr 2010 09:30
"Donny " <atd2000(a)qq.com> wrote in message <hn4iua$71l$1(a)fred.mathworks.com>...
> Richard Quist <rquist_nospam(a)mathworks.com> wrote in message <fr3bde$4sk$1(a)fred.mathworks.com>...
> > This is a bug although not one that I was aware of. R2008a reports an
> > error instead of seg faulting when you try this (message saying the JVM
> > is not running)
> >
> > The same issue would occur if you use MATLAB's print command instead
> > of saveas.
> >
> > The process is attempting to access a preference setting and that makes
> > use of the jvm.
> >
> > Setting the figure's 'paperpositionmode' property to 'auto' may
> > prevent the crash from occurring and allow the file to be created.
> > set(gcf, 'paperpositionmode', 'auto');
> >
> >
> > --
> >
> > Richard Quist
> > Software Developer
> > The MathWorks, Inc.
>
>
> I met similar problems when I run the following program :
>
> clear;clc;
> if ispc
> dir = [pwd,'\test\'];
> else
> dir = [pwd,'/Mwork/testData/'];
> end
> if ~exist(dir)
> mkdir(dir);
> end
>
> t = -10:0.01:10;
> f = -100:2:100;
> sg = 0.5;
> [T,F] = meshgrid(t,f);
> Z = exp(-(T.^2 + F.^2)/(2*sg^2)) ;
> mesh(T,F,Z);axis tight;
> set(gcf, 'paperpositionmode', 'auto');
> saveas(gcf,[dir,'mesh4'],'tif');
>
> The version I used is 7.7.0.471 (R2008b)
> And I run the program in the command line(No GUI) on a Linux platform.
>
>
> It's OK until the program runs to the saveas function.
> it returns "Segmentation fault" and then exit Matlab.
> It's curious that the program will be normal if it runs on the WinXP platform or the var t is changed to "t = -10:0.1:10" on the Linux platform.
>
> Because I have to process a big matrix such as Z, so what should I do if I want to save the image.
>
> Thanks in advance!


Hej folks,

I encountered the same trouble today.
So no way of producing matlab figures within a cronjob :-( ...?
Donny, did you maybe find a solution to the problem?

Thanks,
Sascha
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