[Homer-users] Atlas Viewer using 10-20

[David Boas]

Indeed, you are not able to change the dummy optode number. That is on 
purpose. It is automatically set to a value and automatically handled. 
Is there any particular reason you are finding that you need to change 
the dummy optode number?

Regarding the anchor points, it is strange that some anchor points are 
not being accepted for you. Are you using the developers version of 
atlasViewer that you get from CVS from orbit? Or are you using the 
released package? The released package is out of date. If you are using 
that and can't easily get the cvs version, then maybe we need to update 
the released package. If you are using the cvs version, then email me 
directly and if I can recreate the problem, then we can fix it.

 From your screen shots, I don't really understand the problem of 
springs not showing up.

Maybe it is time to have another online GoToMeeting to go over 
AtlasViewer.  Please let me know if you want that I set that up.

Thanks,
David





On 3/21/14, 6:45 PM, Drew Halliday wrote:
> Hi Homer2 Users,
>
> I am using AtlasViewer GUI to register an array to the atlas, based on 
> 10-20 landmarks.  Although this is covered at the end of the March 4, 
> 2013 training video (http://www.youtube.com/watch?v=a1jtsIEVHMY), 
> several steps remain unclear to me, and I am seeking clarification.  I 
> have tried this approach using both a UCL NTS system (and calling the 
> separate SD file), and a TechEn system (calling the .nirs file in its 
> totality).
>
> When adding springs after calling the SD file, I am unable to 
> manipulate the opt# variable under the Dummy Optodes menu.  I am able 
> to manipulate the x and y coordinates, but not the optode #.  I am 
> also able to define what I believe is the measurement list (i.e., the 
> "Springs" menu, with opt1, opt2 and length).  With the Anchor Points 
> menu, I am able to manipulate the opt# variable, but the ref pt 
> variable will only tolerate certain 10-20 points (e.g., F3 & F4, but 
> not F1 or F2). The springs do not show up like in the video, even 
> after clicking add springs (see attached screenshot).  All of these 
> steps appear to have already been completed in the training video. 
>  Pushing through to the registration step, the probe does appear in 
> the GUI, but is not localised over the 10-20 reference points I 
> specify (see attached screenshot).
>
> If anyone has thoughts regarding why the "springs" don't show up, and 
> why, after specifying 4, 10-20 anchor points the probe is not 
> repositioned, please let me know!
>
> Thanks,
> Drew
>
>
>
> -- 
> Drew Halliday
> Research Assistant
> Medical Physics & Bioengineering
> University College London
>
>
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