Download and save this quaternion file into your local disk, and then read
it from the above signed JOGL application by selecting this file.
The files consists of unit quaternions x y z w on each line.
The last line denote the representative quaternion (ie., center) and is shown in thick lines.
All quaternions are visualized by their equivalent rotation matrices (Euler angles)
key 'o': open dialog box choose file
key 's': enter at the console the file name