roimanager: delete all ROIs not selected

[Emanuele Martini]

Hi to all,
I've a maybe simple question but i didn't find a quick solution, there is a way to automatically (in a script, or java/jython plugin) delete all NOT selected rois from roimanager?
Or i have to implement a for cycle for each roi present and check if there are selected?

Even a simple command like "invert roi selections" could be fine to my purpose.
Thank you,
Emanuele Martini

[Rasband, Wayne (NIH/NIMH) [E]]

> On Mar 20, 2015, at 2:46 PM, Emanuele Martini <[hidden email]> wrote:
>
> Hi to all,
> I've a maybe simple question but i didn't find a quick solution, there is a
> way to automatically (in a script, or java/jython plugin) delete all NOT
> selected rois from roimanager?
> Or i have to implement a for cycle for each roi present and check if there
> are selected?

The following JavaScript code deletes all not selected ROIs from the ROI Manager. It requires ImageJ 1.49p or later.

-wayne

  rm = RoiManager.getInstance();
  indexes = new Array();
  index=0;
  for (i=0; i<rm.getCount(); i++) {
     if (!rm.isSelected(i))
        indexes[index++] = i;
  }
  rm.setSelectedIndexes(indexes);
  rm.runCommand("delete”);


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[Emanuele Martini]

Thank you Wayne,
I resolved it this way via jython:
    idx_sel=roim.getSelectedIndex()
    roi_idxs=range(roim.count)
    del roi_idxs[idx_sel]
    roim.setSelectedIndexes(roi_idxs)
    roim.runCommand("Delete")

Thank you,
Have a nice day,
Emanuele