http://imagej.273.s1.nabble.com/ROI-Manager-Other-Question-tp3701127p3701128.html
> Another question about the ROI manager, which is a very powerfull
> yet poorly documented feature of ImageJ :
>
> - what is the exact operation performed by "Combine" and "Split"
> when selecting multiple ROIs in the ROI manager ?
>
> - In a stack, is the ROI added to the ROI manager related to the slice
> from
> where it has been added? If I do "Select" such a ROI in the manager,
> either
> manually or programmaticaly, will it recall just the ROI or will it
> jump
> also to the slices from where the ROI has been defined ? It seems to
> be the
> case, at least when done manually.
>
> - what is exactly the way the ROI manager remembers on which slice is
> the
> ROI located ? It seems to have something to do with it's default name.
> If I
> "Add" a ROI from slice 2 of my stack, rename the ROI, and select it
> back it
> does'nt remember the slice anymore. So if I want to keep the link
> between
> the ROI and it's slice, I can't rename the ROI ? Or should I just keep
> the
> first stretch of digits (which seem to actually reflect the slice
> number) ?
>
> Christophe Leterrier
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