The 3D scale is also a 3d object in the view. When you zoom the view, the scale 
will also zoom. But the number should not change. 

> On Aug 16, 2019, at 10:25 AM, Nasiriavanaki, Zahra 
> <znasiriavan...@mgh.harvard.edu> wrote:
> 
> Hi Ruopeng
> 
> Thanks for your reply.
> I have a question though. When I zoom in the 3D image, the scale bar numbers 
> don't change. Shouldn't they change when I zoom in?
> 
> Thanks 
> Mona
> 
> Zahra (Mona) Nasiriavanaki
> Postdoctoral Research Fellow
> Martinos Center for Biomedical Imaging
> Massachusetts General Hospital
> 149 13th Street, 149-2615
> Charlestown, MA, USA, 02129
> 
> 
> From: freesurfer-boun...@nmr.mgh.harvard.edu 
> <freesurfer-boun...@nmr.mgh.harvard.edu> on behalf of Ruopeng Wang 
> <rpw...@nmr.mgh.harvard.edu>
> Sent: Friday, August 16, 2019 8:46:57 AM
> To: Freesurfer support list <freesurfer@nmr.mgh.harvard.edu>
> Subject: Re: [Freesurfer] spatial scale bar question
>  
> Hi Mona,
> 
> If you are running the latest dev build, you can right click in the 3D view 
> and choose “Show 3D scale”. The scale bars can only be placed at the boundary 
> of the FOV.
> 
> Best,
> Ruopeng
> 
>> On Aug 15, 2019, at 4:30 PM, Nasiriavanaki, Zahra 
>> <znasiriavan...@mgh.harvard.edu <mailto:znasiriavan...@mgh.harvard.edu>> 
>> wrote:
>> 
>> Hi Freesurfer experts
>> 
>> I wanted to follow up on my question about "spatial scale bar" for 
>> significancy maps in FS.
>> I appreciate if you let me know about the updates on that.
>> 
>> Thanks
>> Mona
>> 
>> Zahra (Mona) Nasiriavanaki
>> Postdoctoral Research Fellow
>> Martinos Center for Biomedical Imaging
>> Massachusetts General Hospital
>> 149 13th Street, 149-2615
>> Charlestown, MA, USA, 02129
>> 
>> 
>> From: freesurfer-boun...@nmr.mgh.harvard.edu 
>> <mailto:freesurfer-boun...@nmr.mgh.harvard.edu> 
>> <freesurfer-boun...@nmr.mgh.harvard.edu 
>> <mailto:freesurfer-boun...@nmr.mgh.harvard.edu>> on behalf of Bruce Fischl 
>> <fis...@nmr.mgh.harvard.edu <mailto:fis...@nmr.mgh.harvard.edu>>
>> Sent: Monday, May 13, 2019 9:56:41 AM
>> To: Freesurfer support list <freesurfer@nmr.mgh.harvard.edu 
>> <mailto:freesurfer@nmr.mgh.harvard.edu>>
>> Subject: Re: [Freesurfer] spatial scale bar question
>>  
>> Hi Mona
>> 
>> sure. As I said it is a bit more complicated than it seems. Ruopeng will 
>> post a note when something usable is in the dev version
>> 
>> Bruce
>> 
>> 
>> On Mon, 13 May 
>> 2019, Nasiriavanaki, Zahra wrote:
>> 
>> > 
>> > Yes Bruce.
>> > 
>> > It doesn't work.
>> > 
>> > I appreciate if you could let me know when you had any updates on it.
>> > 
>> > 
>> > Thanks
>> > 
>> > Mona
>> > 
>> > ___________________________________________________________________________________________________
>> > From: freesurfer-boun...@nmr.mgh.harvard.edu 
>> > <mailto:freesurfer-boun...@nmr.mgh.harvard.edu> 
>> > <freesurfer-boun...@nmr.mgh.harvard.edu 
>> > <mailto:freesurfer-boun...@nmr.mgh.harvard.edu>> on behalf of
>> > Bruce Fischl <fis...@nmr.mgh.harvard.edu 
>> > <mailto:fis...@nmr.mgh.harvard.edu>>
>> > Sent: Friday, May 10, 2019 6:15:05 PM
>> > To: Freesurfer support list
>> > Subject: Re: [Freesurfer] spatial scale bar question  
>> > I don't think it currently works in 3D mode as it is not trivial due to
>> > perspective transforms. Ruopeng is trying some things
>> > On Fri, 10 May 2019,
>> > Greve, Douglas N.,Ph.D. wrote:
>> > 
>> > > here is a pick of it
>> > > https://gate.nmr.mgh.harvard.edu/safelinks/greve/fv.colorbar.gif 
>> > > <https://gate.nmr.mgh.harvard.edu/safelinks/greve/fv.colorbar.gif>
>> > 
>> > [fv.colorbar.gif]
>> > 
>> > 
>> > >
>> > >
>> > > On 5/10/2019 3:40 PM, Nasiriavanaki, Zahra wrote:
>> > >
>> > >       Thanks for your reply.
>> > >
>> > >       I have overlaid the significance map on an inflated brain, and I 
>> > > don't see the scale
>> > >       bar icon anywhere.
>> > >
>> > >       tksurferfv fsaverage lh inflated -ov sig.nii.gz
>> > >
>> > >
>> > >__________________________________________________________________________________________________
>> > _
>> > > From: freesurfer-boun...@nmr.mgh.harvard.edu 
>> > > <mailto:freesurfer-boun...@nmr.mgh.harvard.edu> 
>> > > <freesurfer-boun...@nmr.mgh.harvard.edu 
>> > > <mailto:freesurfer-boun...@nmr.mgh.harvard.edu>> on
>> > > behalf of Greve, Douglas N.,Ph.D. <dgr...@mgh.harvard.edu 
>> > > <mailto:dgr...@mgh.harvard.edu>>
>> > > Sent: Friday, May 10, 2019 3:27:15 PM
>> > > To: freesurfer@nmr.mgh.harvard.edu 
>> > > <mailto:freesurfer@nmr.mgh.harvard.edu>
>> > > Subject: Re: [Freesurfer] spatial scale bar question  
>> > > In freeview, it is just an icon above the image window. Click on it and 
>> > > it should give you a
>> > > scale bar
>> > >
>> > > On 5/10/2019 3:13 PM, Nasiriavanaki, Zahra wrote:
>> > >
>> > >       Dear Freesurfers 
>> > >
>> > >       Hi
>> > >
>> > >
>> > >       I am trying to add a spatial scale bar to my cortical maps in 
>> > > tksurfer. However,
>> > >       as it's mentioned in Freesurfer forum before, the scale bar in 
>> > > tksurfer shrinks
>> > >       when you zoom in the brain.
>> > >
>> > >       I couldn't find a scale bar option in Freeview neither.
>> > >
>> > >       I appreciate if you could let me know how to get a scale bar.
>> > >
>> > >
>> > >       Thanks
>> > >
>> > >       Mona
>> > >
>> > >
>> > >
>> > > _______________________________________________
>> > > Freesurfer mailing list
>> > > Freesurfer@nmr.mgh.harvard.edu <mailto:Freesurfer@nmr.mgh.harvard.edu>
>> > > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer 
>> > > <https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer>
>> > >
>> > >
>> > >
>> > > _______________________________________________
>> > > Freesurfer mailing list
>> > > Freesurfer@nmr.mgh.harvard.edu <mailto:Freesurfer@nmr.mgh.harvard.edu>
>> > > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer 
>> > > <https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer>
>> > >
>> > >
>> > >
>> > >
>> > 
>> >
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