[FieldTrip] ft_read_headshape

[Irene Petrizzo]

Thank you Jan-Mathijs! This solved the first part of my problem. However,
after indicating the fiducial positions in the interactive window, when I
check the position of the axes the positive and negative y-axes don't go
through the preauricular points, and also the X axes is shifted on the
forehead.
I am following exactly the steps of this tutorial:
https://www.fieldtriptoolbox.org/tutorial/electrode/

But I can't figure out the problem

Il giorno mer 5 giu 2024 alle ore 10:01 Schoffelen, J.M. (Jan Mathijs) via
fieldtrip <fieldtrip at science.ru.nl> ha scritto:

> Hi Irene,
>
> Typically, obj-files do not contain explicit information w.r.t. the
> metrical units in which the coordinates are expressed. FieldTrip tries to
> do an educated guess, but may fail depending on the contents of the file.
> If ‘dm’ is wrong, you can just change this ‘by hand’, after the file has
> been read in.
>
> hs = ft_read_headshape(filename);
> hs.unit = ‘cm’/‘m’/‘km’/‘mm’/‘feet’/‘inch' <-choose one of those (apart
> from feet or inch)
>
> Best wishes,
> Jan-Mathijs
>
>
>
>
> On 4 Jun 2024, at 10:09, Irene Petrizzo via fieldtrip <
> fieldtrip at science.ru.nl> wrote:
>
> When trying to read a headshape in the .obj format I get the following
> warning:
>
> Warning: the estimated units are not very decisive, assuming that the
> units are "dm"
>
> The displayed headshape is out of dimensions and when trying to set the
> fiducials the indicated position is not recognized correctly by the script.
> This happens only with this headmodel. Is there a way to correct this or is
> the .obj file corrupted?
>
> Thank you,
> --
> Irene Petrizzo
> Postdoctoral Fellow
>
> University of Trento
> CIMeC - Center for Mind/Brain Sciences |
> *http://r.unitn.it/en/cimec/per2con
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-- 
Irene Petrizzo
Postdoctoral Fellow

University of Trento
CIMeC - Center for Mind/Brain Sciences |
*http://r.unitn.it/en/cimec/per2con <http://r.unitn.it/en/cimec/per2con>*
Palazzo Fedrigotti - corso Bettini 31, 38068 Rovereto (TN) Italy
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