What tools are you using that require VTK? Peace,
Matt. On 4/12/18, 9:59 AM, "[email protected] on behalf of Olivier Commowick" <[email protected] on behalf of [email protected]> wrote: >Hi HCP users and moderators, > >I have been trying lately to convert the gifti files from the >preprocessed data of HCP (in the Native folder) to the VTK format since >there are tools we use that are relying solely on this format. I have >been encountering problems though with the converted files that do not >align properly with the image in visualization softwares. To start with, >I have tested two conversion methods: one through matlab and SPM12, and >one through the mris_convert tool of freesurfer, both with the default >parameters (no info on the T1 image itself). In both cases, the result is >the exact same i.e. a vtk surface that does not align with the T1 image >(with at least two flips on the X and Y axes but probably not only). > >What is weird to me though is that the gifti and T1 image align perfectly >in connectome workbench. This makes me think that either the software is >doing something specific to align them or is accounting for something in >the gifti file that I could not see. The only info I saw is that the >gifti files are in Talairach space (NIFTI_XFORM_TALAIRACH) and no >orientation matrix is given (identity). > >Would anyone know more about this ? Is workbench applying some >transformation on the fly to the gifti files when loading (in which case >which one would be helpful) ? Am I using the wrong files or am I missing >something (and SPM and freesurfer too) in the gifti files from HCP ? > >Thanks a lot in advance > >--- > >Olivier Commowick, Ph.D. >Research Scientist >INRIA Rennes - Bretagne Atlantique, VISAGES Team >Campus de Beaulieu >35042 Rennes >FRANCE > >Phone: +33 2 99 84 25 92 >Email: [email protected] >Web: http://olivier.commowick.org/ > > >_______________________________________________ >HCP-Users mailing list >[email protected] >http://lists.humanconnectome.org/mailman/listinfo/hcp-users _______________________________________________ HCP-Users mailing list [email protected] http://lists.humanconnectome.org/mailman/listinfo/hcp-users
