[FieldTrip] Question concerning ft_headmodel_bem_openmeeg

[Alexandre Gramfort]

Hi Paul,

I've not looked into the new functions yet and I am not sure it has been ever
tested for openmeeg (robert, cristiano?). I'd stick to the old
functions for urgent matters.
Feel free to send me a patch if you end up fixing problems with the new
ones. I'll review the changes ASAP.

Best,
Alex

On Sun, Apr 22, 2012 at 9:07 AM, Paul Czienskowski <paul_c at gmx.de> wrote:
> Dear all,
>
> I want to create headmodels with the ft_headmodel_bem_openmeeg function, and
> - for I formerly used the ft_prepare_bemmodel function - decided to delve
> into the new function first, to see how it works. Anyway, I stumbled upon
> something that puzzled me a bit. In line 96 to 106, the boundaries are
> rearranged to be inside first, which to my understanding means, that the
> first boundary in the array of boundaries will be the innermost one (i.e.
> the brain in my case) and the last boundary will be the outermost one (i.e.
> skin). Everything's fine hitherto. But from line 108 on, things become quite
> odd. Line 108 and 109 define the first compartment to be the skin and the
> last to be the source compartment. This is cross-checked again in line 127
> to 129. To my understanding this is a contradiction and I would appreciate,
> if anybody could tell me if I got something completely wrong, or if the
> function does odd things. If the function is correct, there should at least
> be a comment explaining why this contradiction makes sense anyway.
>
> Best regards,
> Paul
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