Do you have the latest version of the GIFTI matlab toolbox? Peace,
Matt. From: Rita Elena Loiotile <rloiot...@gmail.com<mailto:rloiot...@gmail.com>> Date: Tuesday, March 14, 2017 at 1:27 AM To: Matt Glasser <glass...@wustl.edu<mailto:glass...@wustl.edu>> Cc: "hcp-users@humanconnectome.org<mailto:hcp-users@humanconnectome.org>" <hcp-users@humanconnectome.org<mailto:hcp-users@humanconnectome.org>> Subject: Re: [HCP-Users] GIFTI read and save in Matlab Hi Matthew and HCP, Thank you for the suggestion, Matthew. I tried this a while back, and have since forgotten it. I thought it might work (on account of preserving some internal info). It is also the case that re-saving the original gifti under a new name produces a file that opens properly in other viewing software. That suggested that this was the right approach. Unfortunately, I can't seem to assign new values to the original gifti.cdata. The command "gnew.cdata=M" yields the following: Error using gifti/subsasgn (line 95) Syntax not implemented. Perhaps this has been updated if it works for you? A very dumb workaround for this would be to loop through every possible index of the matrix M and assign each value separately. However, I'd very much like to avoid this if possible, since it's quite slow. Please let me know if this works for you, and/or if I am missing something obvious. Thank you again, Rita On Mon, Mar 13, 2017 at 11:04 PM, Glasser, Matthew <glass...@wustl.edu<mailto:glass...@wustl.edu>> wrote: I find it better to reuse the GIFTI object one read into matlab in the first place: gnew=g; gnew.cdata=M; save(gnew,’saveName.gii’); Peace, Matt. From: <hcp-users-boun...@humanconnectome.org<mailto:hcp-users-boun...@humanconnectome.org>> on behalf of Rita Elena Loiotile <rloiot...@gmail.com<mailto:rloiot...@gmail.com>> Date: Monday, March 13, 2017 at 8:00 PM To: "hcp-users@humanconnectome.org<mailto:hcp-users@humanconnectome.org>" <hcp-users@humanconnectome.org<mailto:hcp-users@humanconnectome.org>> Subject: [HCP-Users] GIFTI read and save in Matlab Hi, I’m hoping someone can recommend a fix for a problem I’m having. I have been using GIFTI library (http://www.artefact.tk/software/matlab/gifti/) to read GIFTIs into Matlab and perform computations. I would like to save as a gifti. Using the software, I have tried the following: M; % matrix of values [vertices by timepoints] g=gifti(M); % converts my matrix to a gifti object with M stored under g.cdata; save(g, ’saveName.gii’); This seems to work fine. I can re-load the saved gift into Matlab— newGifti=gifti(’saveName.gii’);— and it looks correct. However, when I try to open saveName.gii using a non-Matlab visualization software— e.g. tksurfer, wb_view, freeview— I either encounter errors or load what looks like a gift containing all 0’s. Has anyone had success using GIFTI library to save or is there an alternative technique? Thank you very much in advance, Rita _______________________________________________ HCP-Users mailing list HCP-Users@humanconnectome.org<mailto:HCP-Users@humanconnectome.org> http://lists.humanconnectome.org/mailman/listinfo/hcp-users ________________________________ The materials in this message are private and may contain Protected Healthcare Information or other information of a sensitive nature. If you are not the intended recipient, be advised that any unauthorized use, disclosure, copying or the taking of any action in reliance on the contents of this information is strictly prohibited. If you have received this email in error, please immediately notify the sender via telephone or return mail. ________________________________ The materials in this message are private and may contain Protected Healthcare Information or other information of a sensitive nature. If you are not the intended recipient, be advised that any unauthorized use, disclosure, copying or the taking of any action in reliance on the contents of this information is strictly prohibited. If you have received this email in error, please immediately notify the sender via telephone or return mail. _______________________________________________ HCP-Users mailing list HCP-Users@humanconnectome.org http://lists.humanconnectome.org/mailman/listinfo/hcp-users
