External Email - Use Caution
Hi Shahin
What is your command line? mris_flatten does some random sampling of distances since the whole N^2 distance matrix is too big. You can remove the randomness by either specifying -norand or using a specific seed like -seed 1234.
That said, you second image looks like a failure of the flattening. This usually means the distances aren't sampled out far enough/densely enough. The defaults are super old (7 neighbor ring, 12 distances/ring). You could try something like -distances 20 20 and see if that fixes things (and -norand if you want)
Cheers Bruce
From: freesurfer-bounces@nmr.mgh.harvard.edu freesurfer-bounces@nmr.mgh.harvard.edu On Behalf Of Nasr, Shahin,Ph.D. Sent: Friday, April 7, 2023 3:15 PM To: Freesurfer support list freesurfer@nmr.mgh.harvard.edu Subject: [Freesurfer] mris_flatten Version 6 vs. 7
External Email - Use Caution Hi Surfers, This is the second time that I have brought this issue up. When applied to the same 3D patch, the command mris_flatten generates two completely different outcomes when runs under stable 6 vs. 711 (see the attached files). I checked the documentation if there is any flags by which I can control the process. But I couldn't find anything relevant. Any idea what has happened?
Regards
Shahin Nasr, Ph. D. Assistant Professor in Radiology Harvard Medical School MailScanner has detected a possible fraud attempt from "secure-web.cisco.com" claiming to be https://secure-web.cisco.com/1P3aVCMLKHb_BLyWvymhqZgLdoJeNuAWcgw4ezfIWgyu2I_...https://secure-web.cisco.com/1KKZlmmfbSaMq_e7vZdb7bVOx0Po2Sy-YscOPY5REFynzcl9ogZOQkJt6HiC9xRQgj1PgIK4EZE3_QRhf8lrCWDZ60kS1VzAqauCguAnPFVoVtr3jkuFoQ4Zw_Dh0KMp7wkzfb63kU-dz7Q0bKRt8HXdq5ArZsE3eE59s7tbycEZVEv6UlgzMThQjLUajlJXnV9w39MmHDbjykunqQpHQhkmA-iDu_rLXOsGAJKX31GmzCDMiP9tDgjlvRH1-SKd4vXJzx8Uu-9Z2OCdB0FKSDw/https%3A%2F%2Fmesovision.martinos.org%2F