Is there an equivalent of Android rotation vector in iOS?

Question

With Android, there is the notion of rotation vector sensor to get the full orientation of a device in space.

Is there an equivalent with iOS? I do not want to have the screen orientation, but the full orientation of the device.

score 3 · Accepted Answer · answered Jul 25 '14 at 14:59

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On iOS CoreMotion, gives you access to all the device orientation sensors. Magnetometer and Gyroscope readings can combined manually or automatically to give you a running picture of the device orientation.

answered Jul 25 '14 at 14:59

David Berry

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Oh yes; it seems the direct equivalent is in CMAttitude.quaternion, isn't it? – Vincent Hiribarren Jul 25 '14 at 15:07
I can't really speak to the mapping between `CoreMotion` and the Android sensor API's. Generally speaking it gives you access to the attitude of the device in terms of yaw, pitch, and roll. – David Berry Jul 25 '14 at 16:14
Ok; there are some differences in the reference frame, but it seems it was exactly what I was looking for. – Vincent Hiribarren Jul 26 '14 at 11:27
See: https://stackoverflow.com/questions/7950096/devicemotion-relative-to-world-multiplybyinverseofattitude – pstoppani Jul 29 '19 at 18:36

score 0 · Answer 2 · answered Jul 25 '14 at 14:49

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There is.. infact there are a few ways to do it, all rather simple:

see android documentation: http://developer.android.com/guide/topics/sensors/sensors_motion.html

and particularly:

http://developer.android.com/guide/topics/sensors/sensors_position.html

answered Jul 25 '14 at 14:49

erik

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I think he's actually using this currently and looking for the iOS equivalent. – David Berry Jul 25 '14 at 14:59

Is there an equivalent of Android rotation vector in iOS?

2 Answers2