2008/9/4 Peli <[EMAIL PROTECTED]> > > In the documentation I find: > > "Sensor values are yaw, pitch and roll. Yaw is the compass heading in > degrees, range [0, 360[ 0 = North, 90 = East, 180 = South, 270 = West > Pitch indicates the tilt of the top of the device, with range -90 to > 90. Positive values indicate that the bottom of the device is tilted > up and negative values indicate the top of the device is tilted up. > Roll indicates the side to side tilt of the device, with range -90 to > 90. Positive values indicate that the left side of the device is > tilted up and negative values indicate the right side of the device is > tilted up. " > > http://code.google.com/android/reference/android/hardware/SensorManager.html#SENSOR_ORIENTATION > > The problem is, if both pitch and roll, are restricted to the range > -90 to 90, then there is no way to describe for example the "display > pointing downwards" orientation. One of the two has to be allowed to > go from -180 to +180. > > I think it would make more sense to allow "roll" in the range -180 to > +180 and restrict pitch to -90 to 90, because then the top of the > device would always point "north" if yaw == 0.
You are right...this is how it is implemented. roll ranges from -180 to 180. We will fix the documentation. > > > Is this assumption ok? > > Peli > > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] Announcing the new Android 0.9 SDK beta! http://android-developers.blogspot.com/2008/08/announcing-beta-release-of-android-sdk.html For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
