Dear Freesurfers, sorry for the bump, but my message seems to have gone unnoticed. Thanks so much for any ideas. Franz
Am 22.08.2013 um 13:37 schrieb Franz Liem: > Dear Freesurfers, > > I tried to map a single subject surface to fsaverageX (for the sake of > demonstration lets take fsaverage6). I did the following: > mri_surf2surf --hemi lh --srcsubject $s --sval-xyz white --trgsubject > fsaverage6 --tval-xyz --tval ./lh.white.ico6 > This produces a surface that seems systematically shifted (see figure). Also > the newly generated surface does not contain valid geomery information (see > mris_info print of lh.white and lh.white.ico6). Is there a way to fix this? > > Another question: is there a reason why mris_decimate is not included in the > freesurfer-Darwin-snowleopard-i686-stable-pub-v5.3.0 build > > Any help is very much appreciated. > Best, Franz > > > mris_info $s/surf/lh.white >> SURFACE INFO ======================================== >> type : MRIS_TRIANGULAR_SURFACE=MRIS_ICO_SURFACE >> num vertices: 118611 >> num faces : 237218 >> num strips : 0 >> surface area: 77595.6 >> AvgVtxArea 0.654202 >> AvgVtxDist 0.885026 >> StdVtxDist 0.251941 >> ctr : (-33.3535, -11.9536, 42.7693) >> vertex locs : surfaceRAS >> talairch.xfm: >> 1.045 -0.093 -0.014 1.081; >> 0.099 1.095 0.070 -4.263; >> 0.010 -0.083 1.290 -41.092; >> 0.000 0.000 0.000 1.000; >> surfaceRAS to talaraiched surfaceRAS: >> 1.045 -0.093 -0.014 1.177; >> 0.099 1.095 0.070 13.377; >> 0.010 -0.083 1.290 -49.756; >> 0.000 0.000 0.000 1.000; >> talairached surfaceRAS to surfaceRAS: >> 0.949 0.081 0.006 -1.900; >> -0.085 0.902 -0.050 -14.449; >> -0.013 0.058 0.772 37.650; >> 0.000 0.000 0.000 1.000; >> volume geometry: >> extent : (256, 256, 256) >> voxel : ( 1.0000, 1.0000, 1.0000) >> x_(ras) : (-1.0000, -0.0000, 0.0000) >> y_(ras) : (-0.0000, 0.0000, -1.0000) >> z_(ras) : ( 0.0000, 1.0000, -0.0000) >> c_(ras) : ( 0.0989, 0.9660, 0.9027) >> ... > > > > mris_info lh.white.ico6 >> SURFACE INFO ======================================== >> type : MRIS_TRIANGULAR_SURFACE=MRIS_ICO_SURFACE >> num vertices: 40962 >> num faces : 81920 >> num strips : 0 >> surface area: 75477.4 >> AvgVtxArea 1.842620 >> AvgVtxDist 1.573724 >> StdVtxDist 0.523314 >> ctr : (-33.3983, -12.0872, 42.7743) >> vertex locs : surfaceRAS >> volume geometry info is either not contained or not valid. >> ... > > <surfPics.png>_______________________________________________ > Freesurfer mailing list > Freesurfer@nmr.mgh.harvard.edu > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer > > > 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. _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
