Can i constrain a ROI to within another ROI

Posted by flettster on Jul 16, 2009; 8:05am
URL: http://imagej.273.s1.nabble.com/Can-i-constrain-a-ROI-to-within-another-ROI-tp3691786.html

I would like to be able to constrain a ROI that i am drawing within 2 other ROI's. I'll try to expain.  Imagine i have one small circle inside a large circle. I then want to draw another ROI in the space between the large and small circles that cannot go out of this area.

At the moment i am only used to writing macros. I am considering learning JAVA but if it can be done in a macro or with an existing tool that would be alot easier i am sure!

Thanks in advance

Andy