[FieldTrip] TFR map couldn't display negative value

[Roemer van der Meij]

Hey Haiting,

This is a very annoying Matlab OpenGL bug, please see the following FAQ on
how to bypass it:
http://fieldtrip.fcdonders.nl/faq/i_am_getting_strange_artifacts_in_figures_that_use_opacity

In your case, you could try the second option mentioned, it should look
fine:
cfg.maskstyle = 'saturation'

Best,
Roemer



On Wed, May 16, 2012 at 2:47 PM, Roemer van der Meij <
roemer.van.der.meij at gmail.com> wrote:

> Hey Haiting,
>
> This is a very annoying Matlab OpenGL bug, please see the following FAQ on
> how to bypass it:
>
> http://fieldtrip.fcdonders.nl/faq/i_am_getting_strange_artifacts_in_figures_that_use_opacity
>
> In your case, you could try the second option mentioned, it should look
> fine:
> cfg.maskstyle = 'saturation'
>
> Best,
> Roemer
>
>
> On Wed, May 16, 2012 at 1:25 PM, Haiteng Jiang <haiteng.jiang at gmail.com>wrote:
>
>> Hi Fieldtripers,
>>
>>    I try to plot the TRP map using  ft_singleplotTFR, but the colour map
>> cannot display negative value.  My code likes this:
>>
>> cfg = [];
>> cfg.baseline = [-0.3 -0.1];
>> cfg.baselinetype = 'absolute';
>> cfg.channelname  = {'MLP','MRP','MLO','MRO'};
>> figure; ft_singleplotTFR(cfg, TFR);
>>
>> I attach one example I plotted. Does anyone know how to solve it ? I
>> think maybe this is a bug. Thanks in advance !
>>
>>
>>                                                                   Best,
>>                                                                   Haiteng
>>
>>
>> --
>> Haiteng Jiang
>> PhD candidate
>> Neuronal Oscillations Group
>> Donders Institute for Brain, Cognition and Behaviour
>> Centre for Cognitive Neuroimaging
>> Radboud University Nijmegen
>>
>> Visiting address
>> Room 2.32
>> Donders Centre for Cognitive Neuroimaging
>> Kapittelweg 29
>> 6525 EN  Nijmegen
>> the Netherlands
>>
>>  Tel.: +31 (0)243668291
>>  Web:  https://sites.google.com/site/haitengjiang/
>>
>>
>> _______________________________________________
>> fieldtrip mailing list
>> fieldtrip at donders.ru.nl
>> http://mailman.science.ru.nl/mailman/listinfo/fieldtrip
>>
>
>


-- 
Roemer van der Meij M.Sc.
PhD student
Donders Institute for Brain, Cognition and Behaviour
Centre for Cognition
P.O. Box 9104
6500 HE Nijmegen
The Netherlands
Tel: +31(0)24 3655932
E-mail: r.vandermeij at donders.ru.nl
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