External Email - Use Caution Hi Joel,
you need to find the corresponding voxel ( using ras2vox transformation matrix) and then apply your vox2ras-tkr matrix to it. it would give you the tkrRAS coordinate. cheers, Ehsan. On Tue, Sep 4, 2018 at 12:40 PM Bruss, Joel E <joel-br...@uiowa.edu> wrote: > External Email - Use Caution > > If I load, say, orig.mgz and lh.pial, in FreeView and lay my cursor on a > point, I can see RAS (and surfaceRAS) as well as TKReg RAS (orig) > coordinates. Following the steps laid out on the CoordinateSystems > web page I can convert back and forth between those coordinate systems. > However, I can't figure out what I need to do to calculate the Vertex > coordinates. I can load lh.pial in matlab and see the (+1) vertex number > and coordinates, but I'd like to figure out the best way to get from Vertex > x/y/z to TkReg RAS or SurfaceRAS. Is there an easy formula to calculate > this? Thanks in advance for any and all responses. > > > -Joel > > > ------------------------------ > Notice: This UI Health Care e-mail (including attachments) is covered by > the Electronic Communications Privacy Act, 18 U.S.C. 2510-2521 and is > intended only for the use of the individual or entity to which it is > addressed, and may contain information that is privileged, confidential, > and exempt from disclosure under applicable law. If you are not the > intended recipient, any dissemination, distribution or copying of this > communication is strictly prohibited. If you have received this > communication in error, please notify the sender immediately and delete or > destroy all copies of the original message and attachments thereto. Email > sent to or from UI Health Care may be retained as required by law or > regulation. Thank you. > ------------------------------ > _______________________________________________ > 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. >
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