[Eeglablist] Export a locations file in .loc format to Brainstorm

[Arnaud Delorme]

Dear Manuel,

the .xyz format of Brainstorm is not the same as the .xyz format of EEGLAB. Confusing, I know. You will have to write your own import format for Brainstorm .xyz files. I do not know the Brainstorm format. You have to define the columns in the channel text file. You could try something similar to

EEG.chanlocs = readlocs(filename, 'format', { 'labels' 'X' '-Y' 'Z' });

See "help readlocs" for more information. Let us know the correct transformation, and we will add it to the list of available formats.

Arno

On Jun 7, 2011, at 3:53 AM, Manu wrote:

> Hi,
> 
> I'm trying to convert a channel locations file in .loc format into an .xyz format 
> or any other format that Brainstorm can read. I tried using "readlocs" to load 
> the file into a locs structure and then using writelocs to save it into a .xyz 
> file. However, when I import this .xyz file in Brainstorm, instead of seeing a 
> bunch of sensors placed such that they resemble a skull, they are forming a 
> line...There is probably something wrong with the conversion among coordinate 
> systems...maybe.
> 
> My problem is that I need the channel locations file of a Biosemi 128 system in a 
> format suitable for Brainstorm. I just mention it in case someone has it and 
> doesn't mind sharing...
> 
> Any idea/suggestion would be greatly appreciated (I've been struggling with this 
> problem for quite some time now).
> 
> Greetings.
> Manuel.
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