# MNE coreg

**URL:** <https://mne.discourse.group/t/mne-coreg/2108>\
**Category:** Mailing List Archive (read-only)\
**Tags:** list-archive\
**Created:** [March 10, 2020, 7:58pm UTC](https://mne.discourse.group/t/mne-coreg/2108 "2020-03-10T19:58:17Z")\
**Posts on this page:** 17\
**Page:** 1

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**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\
**Post date:** [March 10, 2020, 7:58pm UTC](https://mne.discourse.group/t/mne-coreg/2108/1 "2020-03-10T19:58:17Z")

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Dear MNE experts:

I have an issue running mne coreg I don?t find the fit rpa option. May be is the nvidia drivers I don?t know may be something else before jumping into doing anything I would like to know for sure if possible.

Sincerely,  
Andrade.

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**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\
**Post date:** [March 11, 2020, 1:16pm UTC](https://mne.discourse.group/t/mne-coreg/2108/2 "2020-03-11T13:16:19Z")

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can you share a screen shot of what you see?  
does it work on another computer around you?

Alex

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**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\
**Post date:** [March 11, 2020, 2:47pm UTC](https://mne.discourse.group/t/mne-coreg/2108/3 "2020-03-11T14:47:19Z")

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I just have this computer(I also have a Macintosh but I don?t have much space bus its computing power is such less so I don?t use it for this). I am a student practicing on my own.

[cid:C79462CE-8F5F-4C43-A960-5DE56E7552A9 at home]

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**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\
**Post date:** [March 12, 2020, 10:15am UTC](https://mne.discourse.group/t/mne-coreg/2108/4 "2020-03-12T10:15:58Z")

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If you click on "Edit" button you should be able to set the fiducial points.

let us know if it doesn't work

Alex  
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**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\
**Post date:** [March 12, 2020, 10:42am UTC](https://mne.discourse.group/t/mne-coreg/2108/5 "2020-03-12T10:42:11Z")

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I can click on edit and click on rpa but I cannot see fit rpa then.

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**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\
**Post date:** [March 12, 2020, 4:41pm UTC](https://mne.discourse.group/t/mne-coreg/2108/6 "2020-03-12T16:41:34Z")

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when you go to edit mode you can then click on the mesh to set the  
fiducial locations.

if you're stuck I'll do a short screencast

Alex

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**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\
**Post date:** [March 12, 2020, 5:14pm UTC](https://mne.discourse.group/t/mne-coreg/2108/7 "2020-03-12T17:14:59Z")

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yes please!! im a bit stuck.

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**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\
**Post date:** [March 13, 2020, 4:04pm UTC](https://mne.discourse.group/t/mne-coreg/2108/8 "2020-03-13T16:04:06Z")

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I cannot record my screen. App I used to use crashed on my recent Mac OS...

when you are in edit mode you should see this and be able to click on the head  
surface to position red dot ie LPA.

HTH

Alex

> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;External Email - Use Caution
> 
> yes please!! im a bit stuck.
> 
> Sent from my iPhone
> 
> \>  
> \> ? External Email - Use Caution  
> \>  
> \> when you go to edit mode you can then click on the mesh to set the  
> \> fiducial locations.  
> \>  
> \> if you're stuck I'll do a short screencast  
> \>  
> \> Alex  
> \>  
> \> \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_  
> \> Mne\_analysis mailing list  
> \> Mne\_analysis at nmr.mgh.harvard.edu  
> \> [Mne\_analysis Info Page](https://mail.nmr.mgh.harvard.edu/mailman/listinfo/mne_analysis)
> 
> \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_  
> Mne\_analysis mailing list  
> Mne\_analysis at nmr.mgh.harvard.edu  
> [Mne\_analysis Info Page](https://mail.nmr.mgh.harvard.edu/mailman/listinfo/mne_analysis)

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**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\
**Post date:** [March 13, 2020, 4:19pm UTC](https://mne.discourse.group/t/mne-coreg/2108/9 "2020-03-13T16:19:50Z")

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Oh Ok don?t worry the screnshot is fine. But the issue is on the right side I should have fit rpa and I cannot see that on mine or yours either. I can definitively click on edit and lap. But not the other I mentioned.

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**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\
**Post date:** [March 13, 2020, 4:35pm UTC](https://mne.discourse.group/t/mne-coreg/2108/10 "2020-03-13T16:35:41Z")

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once you have set the fiducials you lock and then click on "fit fid."  
and then on "fit ICP".

Alex

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<div class="post-metadata">

**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\
**Post date:** [March 13, 2020, 6:13pm UTC](https://mne.discourse.group/t/mne-coreg/2108/11 "2020-03-13T18:13:36Z")

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oh ok thanks I thought it was different because of some power point slides somewhere misled me.

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**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\
**Post date:** [March 14, 2020, 7:38pm UTC](https://mne.discourse.group/t/mne-coreg/2108/12 "2020-03-14T19:38:37Z")

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Sorry but once I lock I cannot click in fit fid or fit icp because they are gray. May be it is required a digitization source???

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**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\
**Post date:** [March 15, 2020, 11:00am UTC](https://mne.discourse.group/t/mne-coreg/2108/13 "2020-03-15T11:00:42Z")

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hi,

yes you need some digitization information with a least fiducial points

Now I think that the GUI currently supports digitization passed as .fif files.

HTH  
Alex

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**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\
**Post date:** [March 15, 2020, 12:07pm UTC](https://mne.discourse.group/t/mne-coreg/2108/14 "2020-03-15T12:07:50Z")

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**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\
**Post date:** [March 15, 2020, 1:50pm UTC](https://mne.discourse.group/t/mne-coreg/2108/15 "2020-03-15T13:50:02Z")

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read the sfp as a DigMontage and save it to a fif file.

montage = mne.read\_custom\_montage(...)  
montage.save('foobar.fif')

HTH  
A

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**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\
**Post date:** [March 15, 2020, 3:32pm UTC](https://mne.discourse.group/t/mne-coreg/2108/16 "2020-03-15T15:32:05Z")

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oh ok thanks so much!!

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**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\
**Post date:** [March 15, 2020, 3:46pm UTC](https://mne.discourse.group/t/mne-coreg/2108/17 "2020-03-15T15:46:53Z")

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Failing?

> > > montage.save('/home/andraderenew/Downloads/EEG/montage.fif')

Traceback (most recent call last):  
&nbsp;&nbsp;File "\<stdin\>", line 1, in \<module\>  
&nbsp;&nbsp;File "/home/andraderenew/.local/lib/python3.7/site-packages/mne/channels/montage.py", line 765, in save  
&nbsp;&nbsp;&nbsp;&nbsp;raise RuntimeError('Can only write out digitization points in '  
RuntimeError: Can only write out digitization points in head coordinates.
