[FieldTrip] Sourceplots suddenly have huge file size

"Jens Klinzing, Universität Tübingen" jens.klinzing at uni-tuebingen.de
Thu Oct 9 11:51:45 CEST 2014

Dear fieldtrip community,
I encountered a weird problem. Lately, my source plots started to have 
huge file sizes when I save them as figures (.fig). This applies to both 
slice and surface plots. Surface plots used to have around 3-7 MB, now 
they have around 220 MB or even > 4 GB (ie. almost the size of the 
plotted data set). They also look slightly different now, with the 
surface being way darker than before. Slice plots look the same but are 
also larger than before.

The problem seems to be in the plotting process itself (not the 
beamforming). When I plot older source localizations (which by the way 
have the same file size, fields, and basic properties as newer ones) the 
problem is still there.

The code I am using for plotting did (to the best of my knowledge) not 
change at all:
cfg                                     = [];
cfg.method                      = 'surface';
cfg.funparameter            = 'avg.pow';
cfg.maskparameter         = cfg.funparameter;
cfg.funcolormap              = 'jet';
cfg.projmethod                = 'nearest';
cfg.surfdownsample        = 5;

I thought it may be a change in fieldtrip so I reverted my ft_sourceplot 
to an older version but that did not help. I also used an older Matlab 
version (currently I use 2013b but I also tried 2013a) and another 
computer (Windows and Unix). In all cases I used opengl as the renderer.

I am sure it is something very simple and I'm just too blind to see it. 
Any suggestions?

Thanks a lot for your help,
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