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# coding=utf-8
class SpatialOrientation:
'''Spatial Orientation facade.
Computes the device's orientation based on the rotation matrix.
.. versionadded:: 1.3.1
'''
@property
def orientation(self):
'''Property that returns values of the current device orientation
as a (azimuth, pitch, roll) tuple.
Azimuth, angle of rotation about the -z axis. This value represents the
angle between the device's y axis and the magnetic north pole.
The range of values is -π to π.
Pitch, angle of rotation about the x axis. This value represents the
angle between a plane parallel to the device's screen and a plane
parallel to the ground.
The range of values is -π to π.
Roll, angle of rotation about the y axis. This value represents the
angle between a plane perpendicular to the device's screen and a plane
perpendicular to the ground.
The range of values is -π/2 to π/2.
Returns (None, None, None) if no data is currently available.
Supported Platforms:: Android
'''
return self._get_orientation() or (None, None, None)
def _get_orientation(self):
raise NotImplementedError()
def enable_listener(self):
'''Enable the orientation sensor.
'''
self._enable_listener()
def _enable_listener(self, **kwargs):
raise NotImplementedError()
def disable_listener(self):
'''Disable the orientation sensor.
'''
self._disable_listener()
def _disable_listener(self, **kwargs):
raise NotImplementedError()
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