Hmmm, not to my knowledge; however, it is worth mentioning that there is a feature under Surface: ROI like "Create linear border from ROI" -- something like that. If you have some shape-related metric/surface_shape loaded (e.g., depth, curvature), and you threshold it, e.g., curvature -0.2), then Caret will find the trough (or inverted, if gyral) and make its way through it. Probably not what you need, but on the off chance...
On Jan 30, 2013, at 4:03 AM, Ana Gomes <[email protected]> wrote: > Thank you Donna. > > I also have another question: > > Is there any way to highlight the path of smaller distance, so as to > observe it in the brain surface? > > Ana > > Le 29/01/2013 19:00, [email protected] a écrit : >> Send caret-users mailing list submissions to >> [email protected] >> >> To subscribe or unsubscribe via the World Wide Web, visit >> http://brainvis.wustl.edu/mailman/listinfo/caret-users >> or, via email, send a message with subject or body 'help' to >> [email protected] >> >> You can reach the person managing the list at >> [email protected] >> >> When replying, please edit your Subject line so it is more specific >> than "Re: Contents of caret-users digest..." >> >> >> Today's Topics: >> >> 1. Surface distances (Ana Gomes) >> 2. Re: Surface distances (Donna Dierker) >> >> >> ---------------------------------------------------------------------- >> >> Message: 1 >> Date: Tue, 29 Jan 2013 11:23:39 +0100 >> From: Ana Gomes <[email protected]> >> Subject: [caret-users] Surface distances >> To: [email protected] >> Message-ID: <[email protected]> >> Content-Type: text/plain; charset="iso-8859-1" >> >> Dear all, >> >> >> My question is about how caret calculates the surface distance between >> two centers of gravity. Does it calculate the minimum distance between >> the centers (passing through the minimum #nodes) or are there some >> default constraints? >> >> How can I produce I file that constraints the way we calculate the >> distances, for example calculate the distances avoiding the corpus callosum? >> >> Thank you, >> >> >> Ana >> >> -------------- next part -------------- >> An HTML attachment was scrubbed... >> URL: >> http://brainvis.wustl.edu/pipermail/caret-users/attachments/20130129/16c1c3f7/attachment-0001.html >> >> ------------------------------ >> >> Message: 2 >> Date: Tue, 29 Jan 2013 09:07:01 -0600 >> From: Donna Dierker <[email protected]> >> Subject: Re: [caret-users] Surface distances >> To: "Caret, SureFit, and SuMS software users" >> <[email protected]> >> Message-ID: <[email protected]> >> Content-Type: text/plain; charset=iso-8859-1 >> >> Hi Ana, >> >> I'm not sure Caret (caret5, at least) does what you want. There is this: >> >> caret_command -surface-geodesic >> <surface-coord> >> <surface-topo> >> <output-metric> >> <smoothed> >> [-node node-number] >> >> Generate the geodesic distance from all nodes to all other nodes >> unless a node number is specified in which case the distances are >> output for the specified node to all nodes. >> Uses dijkstra's algorithm with reuse of information from previous >> root nodes. If smoothed is 'true', it traces paths over adjacent >> triangles in order to generate distances for some 2hop neighbors. >> This causes the contours of equal distance to be closer to circular, >> and also makes the distances more consistent for a mesh which has >> been streched nonuniformly. It is almost as fast as unsmoothed. >> >> surface-coord the surface coord file >> >> surface-topo the surface topo file >> >> output-metric output metric file for geodesic distance >> >> You could generate a topology file that excluded the corpus callosum, if you >> have a label/parcellation/paint file that identifies the CC. You could use >> the Surface: ROI menu or caret_command to successively exclude any vertices >> to be avoided from your topo file. >> >> But when you click on the surface in the GUI ("ID nodes"), you get the >> Euclidean distance between the points -- not the geodesic distance. >> >> Donna >> >> >> On Jan 29, 2013, at 4:23 AM, Ana Gomes <[email protected]> >> wrote: >> >>> Dear all, >>> >>> >>> My question is about how caret calculates the surface distance between two >>> centers of gravity. Does it calculate the minimum distance between the >>> centers (passing through the minimum #nodes) or are there some default >>> constraints? >>> >>> How can I produce I file that constraints the way we calculate the >>> distances, for example calculate the distances avoiding the corpus callosum? >>> >>> >>> Thank you, >>> >>> >>> Ana >>> >>> _______________________________________________ >>> caret-users mailing list >>> [email protected] >>> http://brainvis.wustl.edu/mailman/listinfo/caret-users >> >> >> >> ------------------------------ >> >> _______________________________________________ >> caret-users mailing list >> [email protected] >> http://brainvis.wustl.edu/mailman/listinfo/caret-users >> >> >> End of caret-users Digest, Vol 112, Issue 7 >> ******************************************* > > > _______________________________________________ > caret-users mailing list > [email protected] > http://brainvis.wustl.edu/mailman/listinfo/caret-users _______________________________________________ caret-users mailing list [email protected] http://brainvis.wustl.edu/mailman/listinfo/caret-users
