Distance in pixels not automatically populated for line drawn

Posted by dal on Nov 11, 2015; 11:13pm
URL: http://imagej.273.s1.nabble.com/Distance-in-pixels-not-automatically-populated-for-line-drawn-tp5014922.html

When I try to set the scale for analysis in ImageJ, after having drawn a line of a known length, the pop-up input box for setting the scale does not have the Distance in Pixels automatically populated by ImageJ, so I cannot set a pixels to known measurement scale.  Is there any way to fix this issue?  Thanks for your help.