[FieldTrip] 'dipoli' headmodel Linux version

[IRENE INCERTI]

*Dear JM,*

I am pleased that you have attempted to use the dipoli executable. I was
also able to open and run the executable; however, it prompts me to insert
the 'filename1' but returns an 'out of memory' error and then, it crushes.
Do you think this issue could be related to the file's size or its
extension? Could you please provide the dimensions and extension of your
input file?

Additionally, how do you input the conductivities? Should they be entered
immediately after the file name?

Thank you very much.

Il giorno gio 12 set 2024 alle ore 17:31 Schoffelen, J.M. (Jan Mathijs) via
fieldtrip <fieldtrip at science.ru.nl> ha scritto:

> Hi Irene,
>
> As you may have noticed: the dipoli executable (dipoli.exe) cannot yet be
> directly accessed from within FieldTrip, in the same way as the other
> executables can be accessed (on the other operating systems). It shouldn’t
> be altogether too difficult to get this up and running (in fact: I quickly
> tried this on one of the windows systems in the building, and was
> successful), and it surprises me a bit that nobody has ever made the effort
> to go the extra few steps that are needed. Or perhaps people have done
> this, but have never shared it. For a crate of nice vintage balsamico
> vinegar I would be up for the challenge. The way forward here would be to
> reopen this issue: https://github.com/fieldtrip/fieldtrip/issues/1130
> <https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Ffieldtrip%2Ffieldtrip%2Fissues%2F1130&data=05%7C02%7Cfieldtrip%40science.ru.nl%7Cdd6c869f182d40a7a9cb08dcd33d0ef0%7C084578d9400d4a5aa7c7e76ca47af400%7C1%7C0%7C638617506393566083%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=f%2BUO3vVmLP5MUDBnB9zzjuY60g3t9NMLlUywz5bA%2BVg%3D&reserved=0> and
> take it from there. I wouldn’t mind to create a PR on github with code
> changes that builds in support for dipoli in windows, provided this is
> considered to be a good overall improvement, and provided that other people
> write the documentation, and do the testing.
>
> Best wishes,
> JM
>
>
>
>
> On 12 Sep 2024, at 10:29, IRENE INCERTI via fieldtrip <
> fieldtrip at science.ru.nl> wrote:
>
> Dear Fieldtrippers,
> I am a new user of FieldTrip.
>
> I'm working with a Windows system.
> I'm currently attempting to perform an EEG source reconstruction with
> realistic head geometries. FieldTrip implements the Boundary Element Method
> (BEM) for EEG using the foreward ft_compute_leadfield function. However,
> this requires that an EEG BEM model will be built with ft_prepare_model
> function, where in the cfg.method field, you must specify 'dipoli',
> 'bemcp', or 'openmeg'. Initially, as I was working with a Windows machine,
> I tried using 'bemcp'. Unfortunately, the head model failed because,
> starting from 6000 vertices (3000 for the brain, 2000 for the skull, and
> 1000 for the scalp), it produced a 1000x6000 double conductivity matrix. I
> have also read in other discussion list that 'bemcp' may encounter issues
> and, in some cases, does not compute at all. I would like to try using
> 'dipoli', command-line executable or Linux version.
>
> Does anyone have experience with this method? Could you please explain how
> it works and what input is required?
>
> Thank you very much for your assistance.
>
> Best regards,
> Irene
>
> --
> *Irene Incerti, PhD student*
>
> *UNI**MORE* University of Modena and Reggio Emilia
> *Department of Biomedical, Metabolic, and Neural Sciences*
> Center for Neuroscience and Neurotechnologies
> *Neuromorphic Intelligence LABoratory*
> https://www.nilab.unimore.it/
> <https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.nilab.unimore.it%2F&data=05%7C02%7Cfieldtrip%40science.ru.nl%7Cdd6c869f182d40a7a9cb08dcd33d0ef0%7C084578d9400d4a5aa7c7e76ca47af400%7C1%7C0%7C638617506393566083%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=qCoz1JPWayzBSl2oZVnayuxGAvaT0%2BXnsdvKeibJkKU%3D&reserved=0>
>
> Via Campi, 287 - 41125 Modena (MO) ITALY
> Mailto: irene.incerti at unimore.it <f.raimondi at unimore.it>
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-- 

*Irene Incerti, PhD student*


*UNI**MORE* University of Modena and Reggio Emilia

*Department of Biomedical, Metabolic, and Neural Sciences*
Center for Neuroscience and Neurotechnologies
*Neuromorphic Intelligence LABoratory*
https://www.nilab.unimore.it/

Via Campi, 287 - 41125 Modena (MO) ITALY

Mailto: irene.incerti at unimore.it <f.raimondi at unimore.it>
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