Hi All I'm interested in generating a custom parcellation for the low-resolution (32k) cortical mesh. Right now, my data consists of a 1x32k vector, where each index is a label value (1 : K parcels). I want to be able to visualize this on a surface in the Connectome Workbench viewer.
My issue is this: I am able to convert this new label vector into a *.func.gii file by 1) loading a preexisting *.func.gii file into MATLAB with the gifti function ( http://www.artefact.tk/software/matlab/gifti/) and 2) replacing the "cdata" field with the new label vector. I can then visualize this metric file on the corresponding surface ( L / R. white / pial / midthickness.32k_fs_LR.surf.gii ). However, there are no corresponding rgba color values, keys, or ROI name associated with each label value -- I have to specify a colormap in the Connectome Workbench viewer. Ideally, I want to save the new labels as a .*label.gii file. When I try to edit the .labels field (containing keys, names, and rgba color values) in Matlab, Matlab produces an error: "Error using gifti/subsasgn (line 13) Reference to non-existent field 'labels'." (we know the field exists since it is part of the gifti class) My question is this: How can I create a custom *.label.gii file (with my own ROI names, key values, and corresponding rgba color values) from either a vector of labels for each vertex OR from the new *.func.gii file? Thanks Kristian _______________________________________________ HCP-Users mailing list [email protected] http://lists.humanconnectome.org/mailman/listinfo/hcp-users
