glad to hear it Bruce On Mon, 29 Oct 2018, k3ops@free.fr wrote:
External Email - Use CautionHi Ruopen and Bruce,
indeed I fixed the transform multiplication and now I am able to get the good coordinates. Thanks for your help!
Best, Florent
----- Mail original ----- De: "Ruopeng Wang" rpwang@nmr.mgh.harvard.edu À: freesurfer@nmr.mgh.harvard.edu Envoyé: Vendredi 26 Octobre 2018 19:08:28 Objet: Re: [Freesurfer] Freeview coordinates
Hi Florent,
I'm not sure how you got -152, 73, -66. If you apply the matrix to (152, 66, 73, 1), you should get
-24, -55, 62
Which matches what is shown in freeview.
Best, Ruopeng
On 10/26/2018 12:06 PM, k3ops@free.fr wrote:
External Email - Use Caution Hi Bruce,
Thanks for the tip. When I run the command on 'lh.white' surface for example, I don't get an affine transform but a simpler one:
vox2ras-tk: -1 0 0 128 0 0 1 -128 0 -1 0 128 0 0 0 1
So when I apply this transform to a pixel position (152, 66, 73) here is the result I get: -152, 73, -66
But the expected result provided in Freeview as TkRegRAS T1 is: -23.61, -55.02, 61.25
Which obviously involving an affine transform.
Did I miss something? Thanks
Cheers, Florent
Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer