Thank you very much Wayne, it works now. However, I didn't mention this,
but mostly I'd working with annular ROIs (retinal oximetry, annulus around
the optic nerve head), and subtracting a smaller concentric ROI requires
the Alt key, which also makes the overlay come off...
On Thu, Oct 17, 2013 at 5:25 PM, Rasband, Wayne (NIH/NIMH) [E] <
[hidden email]> wrote:
> On Oct 17, 2013, at 6:50 AM, Davíð Þór Bragason wrote:
>
> > Hello,
> >
> > I am working with images with overlays that cover the entire image. I
> need
> > to draw circular ROIs with a given center point on the images for
> numerical
> > analysis. However, the Ctrl+Shift modifier keys needed to do this with
> the
> > Oval Selection tool make the overlay come off and move around instead of
> > drawing the circular ROI that I need, i.e. the overlay gets selected.
> >
> > Is there a way to solve this by 1) reassigning the modifier keys, or 2)
> > make the Oval Selection tool give a circle with a given center point
> > without using Ctrl+Shift, or 3) make the overlay stick in place? I can't
> > see any options in the ImageROI or Overlay code that allow for an
> > "immobile" overlay (the images are produced by a plugin written by me.)
> And
> > flattening the image is not an option, since I need the pixel values
> > underneath.
>
> This bug is fixed in the latest daily build (1.48e18). You still have to
> use ctrl+shift (or command+shift on Macs) to create a centered circular ROI
> but any underlying overlay will not move. You can upgrade to the daily
> build by using the Help>Update ImageJ command and selecting "daily build"
> from the drop down menu.
>
> -wayne
>
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