Get angle of rotation around local axis

Implement a "Calibrate" Option which zeroes the current position by reading the gyro/accel and offsetting it in the calculations.

I already have that. Still what I get is world rotation. for example my game is landscape. I'm laying down and turning to the side so my phone is portrait in world space. The rotation is then inversed this way (x becomes y and y becomes x). Using get orientation might do the trick but its only for per 90° angles. $$anonymous$$aybe if I can get the local Z rotation I can rotate the whole rotation so it seems like it's always in landscape world space.

btw using gameobject to simulate this is fine with me, it doesnt have to be pure scripting.

Detect the screen orientation and select the relevant code block accordingly.

Curiously there are two pages on screen orientation.

http://docs.unity3d.com/ScriptReference/ScreenOrientation.html

http://docs.unity3d.com/ScriptReference/Screen-orientation.html

I also did that. I've successfully nullified Z rotation but it seems like it wasnt really helpful.

I've done several tests, and got :

• local Z rotation is the same as world Z rotation

• Using the projection method, if I use the local forward axis as the perpendicular vector to get the local y rotation angle, it always return the same angle as world Y rotation.

• If I use local Up as perpendicular vector, then the result will be unafftected by local Up rotation, but other axis rotations will. This goes for all axis combinations except local forward-up mentioned just before this.

Updated the question. Btw to simplify things I want to get the angle of the rotation around an object's local X and Y axis. localEulerangles won't do, it's relative to ita parent not its local axises