Constructing line perpendicular to other line (saved in ROI manager)

Posted by rafesgre on Mar 13, 2015; 10:36pm
URL: http://imagej.273.s1.nabble.com/Constructing-line-perpendicular-to-other-line-saved-in-ROI-manager-tp5011962.html

Hi everyone.
 
does someone know how to create (automatically) a line that is perpendicular to a previously created straight line (saved in the ROI manager) in ImageJ/Fiji? Of course, you can do it manually, but that will never be a exactly perpendicular line.
I'm sure that there already exists a simple solution, but I just cannot find it.
 
Best wishes,
JK

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