Re: better line length measurement...

Posted by Theresa Swayne on Mar 23, 2011; 6:12pm
URL: http://imagej.273.s1.nabble.com/better-line-length-measurement-tp3685292p3685296.html

Hi Nick,

If you double-click on the line tool and change the line width to a  
large enough number you will get a wide semi-transparent shadow on the  
line selection, the ends of which are perpendicular to the line.

Hope this helps,
Theresa


On Mar 23, 2011, at 2:01 PM, Nick wrote:

> I am trying to use imagej to measure line widths.  I am quite
> comfortable setting the scale and using the line tool to make a
> measurement, but I was wondering if there was some way to help guide
> the line I draw and make sure that it is perpendicular to the feature.
> For instance, other programs usually have a tool that looks like:
> |<------->|
> I am really after those vertical lines on the edges (perhaps a bit
> longer).  So, if I am measuring the width of a strip, I can align
> those vertical lines with the edges of my strip; helping me get more
> accurate measurements.

------------------------------------
Theresa C. Swayne, Ph.D.
Manager, Confocal and Specialized Microscopy Shared Resource
Herbert Irving Comprehensive Cancer Center, Columbia University
1130 Saint Nicholas Ave, 222A
New York, NY 10032

212-851-4613

[hidden email]
http://www.hiccc.columbia.edu/research/sharedresources/confocal