"""
Tracking Signal for Device coordination
+++++++++++++++++++++++++++++++++++++++
.. autosummary::
~TrackingSignal
"""
from ophyd import Signal
[docs]class TrackingSignal(Signal):
"""
Non-EPICS signal for use when coordinating Device actions.
.. index:: Ophyd Signal; TrackingSignal
Signal to decide if undulator will be tracked while changing the
monochromator energy.
"""
[docs] def check_value(self, value):
"""
Check if the value is a boolean.
RAISES
ValueError
"""
if not isinstance(value, bool):
raise ValueError("tracking is boolean, it can only be True or False.")
# -----------------------------------------------------------------------------
# :author: Pete R. Jemian
# :email: jemian@anl.gov
# :copyright: (c) 2017-2022, UChicago Argonne, LLC
#
# Distributed under the terms of the Creative Commons Attribution 4.0 International Public License.
#
# The full license is in the file LICENSE.txt, distributed with this software.
# -----------------------------------------------------------------------------