Posted by Christian Catchpole on Jul 02, 2010; 3:32am
URL: https://forum.jogamp.org/Extracting-projected-coordinates-tp835912p937763.html

Thanks. Yeah, that sounds like the way to go.

What I want to do it draw a 2D window using 2D techniques.  But then when you say "close" the window, it rotates and disappears (swings away off in some direction).  So you now want to start projecting this 2D plane in 3D and swing it out of view.