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

>
>
> 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-bounces@nmr.mgh.harvard.edu <freesurfer-bounces@nmr.mgh.harvard.edu> on
> behalf of Greve, Douglas N.,Ph.D. <DGREVE@mgh.harvard.edu>
> Sent: Friday, May 10, 2019 3:27:15 PM
> To: 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
>
>
>
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