[FieldTrip] BrainProducts Easycap layout

[Hwee Ling Lee]

Dear Jim,

Thanks. I did try the file as a text file, but it didn't work previously.
I'll download the latest version of Fieldtrip tomorrow, and try again.

Thanks again!

Cheers,
Hweeling



On 22 January 2014 16:43, Herring, J.D. (Jim) <j.herring at fcdonders.ru.nl>wrote:

> Dear Hweeling,
>
>
>
> First of all you should rename the file to 128Channel.txt, if you use the
> .sfp extension Fieldtrip will recognize it as a different filetype.
>
>
>
> Furthermore, I just noticed that there is a bug in ft_read_sens. It tries
> to convert the channel label to a double, which is of course not possible
> and not wanted in case of channel labels.
>
>
>
> The bug will be fixed a.s.a.p. so you should be able to download the
> updated version by tomorrow, if I am not mistaken.
>
>
>
> Best,
>
>
>
> Jim
>
> *From:* Hwee Ling Lee [mailto:hweeling.lee at gmail.com]
> *Sent:* woensdag 22 januari 2014 16:18
> *To:* Herring, J.D. (Jim)
> *Cc:* FieldTrip discussion list
> *Subject:* Re: [FieldTrip] BrainProducts Easycap layout
>
>
>
> Dear all,
>
>
>
> Thanks for the suggestions. For Jörn, I checked the
> Fieldtrip/template/layout, but none of them fits my data. I tried the
> suggestion from Herring, however, I keep getting an error message:
>
> Error using ft_convert_units (line 121)
>
> cannot determine geometrical units
>
>
>
> Error in ft_datatype_sens (line 189)
>
>       sens = ft_convert_units(sens);
>
>
>
> Error in ft_read_sens (line 331)
>
> sens = ft_datatype_sens(sens);
>
>
>
>  I had my data in a text format previously, and it didn't work either. So
> I'm not sure what to do!
>
>
>
> I've attached my file in this email, the values are gotten from the pdf
> info from Easycap regarding the theta/phi coordinates for each site.
>
>
>
> Thanks!
>
>
>
> Cheers,
>
> Hweeling
>
>
>
>
>
> On 22 January 2014 16:00, Herring, J.D. (Jim) <j.herring at fcdonders.ru.nl>
> wrote:
>
> Hi Hweeling,
>
>
>
> If you create a text-file that has three columns: Label, Theta, and Phi
> coordinate, you can use elec = ft_read_sens(filename) to read the layout
> into a fieldtrip useable elec structure.
>
>
> The first line of the text file has to be:
>
>
>
> Site Theta Phi
>
>
>
> You can also have a look at easycap-M1.txt and easycap-M10.txt in the
> fieldtrip/template/electrode folder for an example of how the text-file
> should look like.
>
>
>
> The theta and phi coordinates will be converted to 3d coordinates assuming
> a head-radius of 85mm (by default, you can specify this)
>
>
>
> Best,
>
>
>
> Jim
>
>
>
> *From:* fieldtrip-bounces at science.ru.nl [mailto:
> fieldtrip-bounces at science.ru.nl] *On Behalf Of *Hwee Ling Lee
> *Sent:* woensdag 22 januari 2014 15:42
> *To:* FieldTrip discussion list
> *Subject:* [FieldTrip] BrainProducts Easycap layout
>
>
>
> Dear all,
>
>
>
> I would like to know if anyone has the layout for 128 EEG channels for
> BrainProduct easycap.
>
>
>
> I have the information of the theta/phi coordinates for each of the
> channels, but I'm not sure how to use these values to create the layout in
> fieldtrip.
>
>
>
> It'll be great if someone can help me on this!
>
>
>
> Thanks.
>
>
>
> Best regards,
>
> Hweeling
>
>
>
>
>
>
>
> --
>
> =================================================
> Dr. rer. nat. Lee, Hwee Ling
> Postdoc
> German Center for Neurodegenerative Diseases (DZNE) Bonn
>
> Email 1: hwee-ling.lee<at>dzne.de
> Email 2: hweeling.lee<at>gmail.com
>
>
>
> https://sites.google.com/site/hweelinglee/home
>
> Correspondence Address:
> Ernst-Robert-Curtius Strasse 12, 53117, Bonn, Germany
> =================================================
>
> _______________________________________________
> fieldtrip mailing list
> fieldtrip at donders.ru.nl
> http://mailman.science.ru.nl/mailman/listinfo/fieldtrip
>



-- 
=================================================
Dr. rer. nat. Lee, Hwee Ling
Postdoc
German Center for Neurodegenerative Diseases (DZNE) Bonn

Email 1: hwee-ling.lee<at>dzne.de
Email 2: hweeling.lee<at>gmail.com

https://sites.google.com/site/hweelinglee/home

Correspondence Address:
Ernst-Robert-Curtius Strasse 12, 53117, Bonn, Germany
=================================================
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