[Interest] Plane rotations

[Igor Mironchik]

Hello,

Let's say I have two vectors - N (normal vector to plane P1) and M 
(normal vector to plane P2).

How to calculate x, y, z axis rotations angles for plane P2 to make 
plane P2 parallel to P1?

How to calculate x, y, z axis rotations angles for plane P2 to rotate it 
around vector N?

Thank you.

And what is the measurement of angle in rotationX() of Qt3DCore::QTransform?

I need to calculate angles in this units.