Hi Mike,
yes, you are right, you get the corners of the bounding rectangle.
I fear that list with all the points would not be helpful in your
case as there would be no way to determine where one 'sub-selection'
in the list ends and the next one starts.
If you want to have a look at the inner workings of ImageJ, by
selecting different patches with SHIFT you get a ShapeRoi. This class
does not override getPolygon(), so it is the getPolygon() method of
the superclass Roi that is used. Roi is also a rectangular selection.
In a plugin you could split a shapeRoi into individual rois quite
easily:
Roi[] rois;
if (roi instanceof ShapeRoi) //split roi
rois = ((ShapeRoi)roi).getRois();
else
rois = new Roi[] {roi};
In a macro, the only way of splitting a ShapeRoi that comes into my
mind is creating a mask and running the Particle Analyzer with "Add
to Manager".
Michael
________________________________________________________________
On 9 Jun 2009, at 16:23, Michael Doube wrote:
> Hello,
>
> If I make a multiple selection, e.g. with the wand while holding
> down [Shift], then put the ROI coordinates into arrays with the
> macro command
> getSelectionCoordinates(xCoordinates, yCoordinates), I get a
> strange result, which does not seem to be the coordinates of the
> multiple selection. I get 4-element arrays instead, regardless of
> the size of the multiple ROI. Am I getting the selection bounds in
> this case?
>
> Mike
Locked
