[FieldTrip] ft_volumerealign always producing coordsys 'ctf'.

[Roey Schurr]

Dear Kaelasha,
If I understand correctly (and as describes in the function's code),
ft_realign has a default coordinate system that is used when using the
different methods of realigning. When using 'interactive', this default is
indeed ctf. Please try the following (specifying the coordinate system
yourself) and tell us how it goes:

cfg=[];
cfg.method = 'interactive';
cfg.coordsys = 'neurmag';
mri_real = ft_volumerealign(cfg, mri);

Best,
Roey


On Sat, Jul 19, 2014 at 12:54 AM, Kaelasha Tyler <ktyler at swin.edu.au> wrote:

>  Hi all,
>
>  I had understood, that using ft_volumerealign, and manually marking
> fiducials, should produce a new structure (mri_real) with a cfg.coordsys
> matching the actual MEG system you are using- in my case neuromag.
>
>  However, no mater how much I play around with the ft_volumerealign, I
> always end up with a structure with mri_real.coordsys='ctf'.
>
>  Later down the track, my volume conduction model is not properly aligned
> to my sensors.
>
>  Currently I am just using the following basic code:
>
>
>  cfg=[];
>
> cfg.method = 'interactive';
>
> mri_real = ft_volumerealign(cfg, mri);
>
>  Does anyone know what I am doing wrong here?
>
>  Cheers,
> Kaelasha
>
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