Hi all: I am studying the coordinate system transforms within subject across imaging modalities on web page: http://surfer.nmr.mgh.harvard.edu/fswiki/CoordinateSystems. I met a problem. First, i run tksurfer : tksurfer subjectname lh inflated -reg register.dat -ov mov.nii , then i chose a point on the surface and save it. There would be Vertex Index value and Vertex RAS value on the panel of TKSurfer Tool. For example: Vertex Index 96063 Vertex RAS (-56.05 0.42 62.6) Now, i want to know how the values between Vertex Index and Vertex RAS transformed each other. I need help.
Best wishes!
The index is just a number that is an index into a type of "lookup" table. The "lookup" table is just the surface, eg, lh.white, which stores the RAS. doug
On 03/24/2013 10:01 AM, ZhiLiangLong wrote:
Hi all: I am studying the coordinate system transforms within subject across imaging modalities on web page: http://surfer.nmr.mgh.harvard.edu/fswiki/CoordinateSystems. I met a problem. First, i run tksurfer : tksurfer subjectname lh inflated -reg register.dat -ov mov.nii , then i chose a point on the surface and save it. There would be Vertex Index value and Vertex RAS value on the panel of TKSurfer Tool. For example: Vertex Index 96063 Vertex RAS (-56.05 0.42 62.6) Now, i want to know how the values between Vertex Index and Vertex RAS transformed each other. I need help. Best wishes!
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Douglas N Greve -
ZhiLiangLong