def __init__(self,
tomo_axis=None,
flat_axis=None,
vertical_axis=None,
source=None):
self.tomo_axis = tomo_axis
self.flat_axis = flat_axis
self.vertical_axis = vertical_axis
self.source = source
self._last_tomo_axis_position = None
self._last_tomo_axis_velocity = None
self._last_flat_axis_position = None
self._last_flat_axis_velocity = None
self._last_vertical_axis_position = None
self._last_vertical_axis_velocity = None
self._last_source_state = None
Camera.__init__(self)
self.exposure_time = 0.001 * q.s
