Hi Ray
I would assume that they are in "tkras" space, which is still "native" but
is not voxel coords.
cheers
Bruce
On Tue, 3 Nov 2015,
Razlighi, Qolamreza R. wrote:
Thanks Bruce, I read in another post that these coordinates in ascii file
are in native space. So if I load the original volume in another
visualization tool (e.g. fslview), these coordinates should be right on the
border of white/gray matter. Is that correct?
I already checked couple of them but wanted to be sure this is the case.
Also, if freeview doesn’t get the header information from ascii files, what
header info (probably a default one) it uses to plot them? Is there any way
we can give those header information separately to freeview?
Best
--
Ray Razlighi, Ph.D.
Assistant Professor
Quantitative Neuroimaging Laboratory
Division of Cognitive Neuroscience
Department of Neurology
Columbia University
Alt: razli...@gmail.com
Office Phone: 212-342-1352
Office Fax: 212-342-1838
Website: http://www.columbia.edu/cu/qnl/
On Nov 2, 2015, at 10:02 AM, Bruce Fischl <fis...@nmr.mgh.harvard.edu>
wrote:
Hi Ray
the ascii format is pretty barebones and doesn't have e.g.
ras2vox info
that freeview uses to display the surfaces properly. It's for
ease of
conversion and such.
cheers
Bruce
On Mon, 2 Nov 2015, Razlighi, Qolamreza R. wrote:
Hi Guys,
Why converting a surface to .asc format changes its
spatial orientation? Specifically, I have converted
lh.while to lh.white.asc (using: mris_convert
lh.white lh.white.asc) and plot both of them using
freeview but they are not corresponding. In fact,
lh.white corresponds to the volume image (e.g
orig.mgz) but the lh.white.asc doesn't. See the
attached screenshot. The red curve is the
lh.white.asc.
Any explanation would be greatly appreciated.
Best
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