EGI layout

[Robert Oostenveld]

On 18 Apr 2007, at 14:36, Olga Sysoeva wrote:
> Does anybody has a *.lay file for the 128 Elecrtical Geodesics cap?

Dear Olga,

You can download *.sfp files from ftp://ftp.egi.com/pub/software/
besa. These contain the labels and xyz positions of all electrodes,
and you can read them into matlab with READ_FCDC_ELEC. Using the
function PRERARE_LAYOUT, you can make a 2D flat layout from them for
use with topoplotting and multiplotting.

Something like this should wourk (assuming that you have a recent
copy of fieldtrip, since this was only added a few weeks ago)
   cfg = [];
   cfg.elecfile = 'GNS128.sfp';
   mylay = prepare_layout(cfg);

and then use
   cfg = []
   cfg = ... % related to the topoplot or multiplot
   cfg.layout = mylay
in your calls to topoplotXX and multiplotXX.


hope this helps,
Robert