Getting Coordinates of Line Selection

Posted by Ryohei Thomas Nakano on Jul 18, 2007; 11:28am
URL: http://imagej.273.s1.nabble.com/Trying-to-understand-algorithms-tp3698773p3698775.html

Hi,
I'm writing plugin using Straight Line selection.
I want to get coordinate data or just an angle data is OK.
(x1, y1)  and (x2, y2), or the angel.
when rectangular selection was used, it greatly work,
but i have no idea when straight line selection.
I would be grateful for just a little help.

Sorry for so elementary question.
Thank you.

Thomas