Re: [Freesurfer] question about format of control points

2013-07-01 Thread Bruce Fischl
Hi Mehul writing as full floats should be fine, I didn't realize tkmedit rounded Bruce On Mon, 1 Jul 2013, Mehul Sampat wrote: Thanks Bruce. Okay will convert them from scanner RAS to surface RAS; last question: I looked at the control points made from tkmedit;  it seems like you round of the

Re: [Freesurfer] question about format of control points

2013-07-01 Thread Mehul Sampat
Thanks Bruce. Okay will convert them from scanner RAS to surface RAS; last question: I looked at the control points made from tkmedit; it seems like you round of the co-ordinates to integers and then save them as floats; Does the co-ordinate information saved in control.dat need to be rounded or is

Re: [Freesurfer] question about format of control points

2013-07-01 Thread Bruce Fischl
1. Yes, I think so, although I wouldn't swear that everything is smart enough to read this flag. You might be safer converting them to surface ras and using them that way 2. Yes. On Mon, 1 Jul 2013, Mehul Sampat wrote: Thanks Bruce; Okay i assume, useRealRAS should be 1 for scanner RAS;  Two

Re: [Freesurfer] question about format of control points

2013-07-01 Thread Mehul Sampat
Thanks Bruce; Okay i assume, useRealRAS should be 1 for scanner RAS; Two questions: 1. If my control points are in scanner RAS, then can I use them directly as long as I set useRealRAS to 1 in the control.dat file ? 2. Can useRealRAS variable be only 0/1 or do you have a different value for surface

Re: [Freesurfer] question about format of control points

2013-07-01 Thread Bruce Fischl
Hi Mehul they can either be in "real" (meaning scanner) RAS or in surface RAS cheers Bruce On Mon, 1 Jul 2013, Mehul Sampat wrote: Thanks Bruce; I noticed that in the control.dat file the second last line is "useRealRAS 0" just curious to know if info is used by recon-all or is only used by

Re: [Freesurfer] question about format of control points

2013-07-01 Thread Mehul Sampat
Thanks Bruce; I noticed that in the control.dat file the second last line is "useRealRAS 0" just curious to know if info is used by recon-all or is only used by the viewer ? Thanks Mehul On Mon, Jul 1, 2013 at 11:34 AM, Bruce Fischl wrote: > yes, they are stored in ras > > On Mon, 1 Jul 2013, Me

Re: [Freesurfer] question about format of control points

2013-07-01 Thread Bruce Fischl
yes, they are stored in ras On Mon, 1 Jul 2013, Mehul Sampat wrote: Hi Folks, Once we make control points in tkmedit, they are stored in the file control.dat Are these control points stored in RAS co-ordinate system ? If not what is the co-ordinate system used to store the control points Thanks

[Freesurfer] question about format of control points

2013-07-01 Thread Mehul Sampat
Hi Folks, Once we make control points in tkmedit, they are stored in the file control.dat Are these control points stored in RAS co-ordinate system ? If not what is the co-ordinate system used to store the control points Thanks Mehul ___ Freesurfer mailin