It is very good to know FS has this function. It will be very helpful for us. Thanks. Aize > Date: Fri, 1 Apr 2011 13:57:23 -0400 > From: rudo...@nmr.mgh.harvard.edu > To: caoa...@hotmail.com > CC: freesurfer@nmr.mgh.harvard.edu > Subject: Re: [Freesurfer] Distance between two points along cortical > > This question comes up sometimes -- and the short answer is 'yes', there > is a tool that can allow you to do this. Although it will be available > in the next version of FS (5.1), it is still a bit rough around the > edges. It is called 'mris_pmake' and to use it to determine the distance > between two points, do: > > mris_pmake --subject <subject> --hemi -<hemi> --surface0 <surface> > --curv0 sulc --curv1 sulc --mpmOverlay euclidean --mpmProg pathFind > --mpmArgs > startVertex:<startArg>,endVertex:<endArg> > > So, if you have a subject called 'ID1' and want to determine the > shortest distance along the surface between vertex 11111 and vertex > 33333 on the left hemisphere smoothwm, do: > > mris_pmake --subject ID1 --hemi lh --surface0 smoothwm --curv0 sulc > --curv1 sulc --mpmOverlay euclidean --mpmProg pathFind --mpmArgs > startVertex:11111,endVertex:33333 > > Note, that this is *not* the geodesic, but is very close. The path is > constrained to run along the surface mesh, so will in general be > slightly longer than the geodesic. > > > On 4/1/11 12:28 , caoaize wrote: > > > > Hello FS Experts, > > > > Suppose we have two points on the cortical surface (pial for example), > > we want to know the distance between these two point along cortical > > surface (not direct distance). Does FS report this kind of distance? Any > > suggestion will be very appreciated. > > > > Aize > > > > > > > > _______________________________________________ > > Freesurfer mailing list > > Freesurfer@nmr.mgh.harvard.edu > > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer > > > -- > Rudolph Pienaar, M.Eng, D.Eng / email: rudo...@nmr.mgh.harvard.edu > MGH/MIT/HMS Athinoula A. Martinos Center for Biomedical Imaging > 149 (2301) 13th Street, Charlestown, MA 02129 USA > > > The information in this e-mail is intended only for the person to whom it is > addressed. If you believe this e-mail was sent to you in error and the e-mail > contains patient information, please contact the Partners Compliance HelpLine > at > http://www.partners.org/complianceline . If the e-mail was sent to you in > error > but does not contain patient information, please contact the sender and > properly > dispose of the e-mail.
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