Hi Seth,
you can create a selection that is a circle with a cross missing at the center, see the following macro. It is movable and looks similar to what you describe:
xCenter=100;
yCenter=100;
radius=50;
crossRadius=20;
makeOval(xCenter-radius, yCenter-radius, 2*radius,2*radius);
setKeyDown("alt");
makeRectangle(xCenter-crossRadius, yCenter-1, 2*crossRadius,2);setKeyDown("alt");
setKeyDown("alt");
makeRectangle(xCenter-1, yCenter-crossRadius, 2, 2*crossRadius);
As far as I know, one cannot combine area and line selections with the ROI manager; that's what prevents us from having true crosshairs movable together with a circle.
Michael
________________________________________________________________
On Nov 4, 2013, at 17:28, Seth Pappas wrote:
> Hello,
> Is it possible to 'move' a combined set of Regions of Interest?
> The goal is to check the centered-ness of an assembled part relative to a frame.The ROI is a circle with a rectangle and the rectangle has crosshairs in it. All objects are coaxial.
> A single ROI object is movable but when you group several of them using the ROI manager, it seems impossible to move the group.
>
> Slight XY offset of an image requires the ROI set to be adjusted.
>
> Trying an alternate approach, I tried to create an Overlay but then read somewhere that 'by definition, an overlay is not movable'.
>
> Thanks,
> Seth Pappas
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