Hi Andrea
our coordinate systems are documented here:
https://surfer.nmr.mgh.harvard.edu/fswiki/CoordinateSystems
the control points are stored in RAS (either "surface ras" or "scanner ras" depending on the header). By default it is "surface ras" (if not otherwise specified at the top of the file)
cheers Bruce
On Tue, 8 Mar 2016, Andrea Gerardo Russo wrote:
Hi Freesurfer users! We are performing such analysis on Matlab using cartesian coordinates of the control points for the study of cortical thickness. We have some problems to exactly localize control points from matlab viewing to freview or tkmedit: if the localization in Matlab is fine, in freeview are there some trasformations that I'm missing? We' d like to know if is there a file that exactly reports the trasformation matrix to change Cartesian coordinates (row, column, slice) into the "Volume RAS coordinates§" ( i.e. the coordinates used in "control.dat" file)? Any suggestions will be appreciate. Thanks in advance
Andrea Gerardo Russo Student at University of Naples "Federico II" (Italy)