v3.0.0 (2020-10-07)

API Changes

• The calculations for alio_to_theta and theta_to_alio in ccm.py
  have been reverted to the old calculations.
• User-facing move functions will not be able to catch the
  :class:~ophyd.utils.LimitError exception. These interactive methods are
  not meant to be used in scans, as that is the role of bluesky.

Features

• :class:pcdsdevices.attenuator.AT2L0 now has a textual representation of
  filter status, and supports the move interface by way of transmission values.
• :class:~pcdsdevices.pseudopos.SyncAxes has been adjusted to support
  scalar-valued pseudopositioners, allowing for more complex devices to be kept
  in lock-step motion.
• :class:~pcdsdevices.pseudopos.PseudoPositioner position tuples, when of
  length 1, now support casting to floating point, meaning they can be used
  in many functions which only support floating point values.
• Added signal annotations for auto-generated notepad IOC support.

Device Updates

• Add event/trigger information to PPM, XPIM.
• Reclassify twincat motor and states error resets as "normal" for
  accessibility.
• Add PMPS maintenance/config PVs class for TwinCAT states devices,
  propagating this to all consumers.

New Devices

• Adds :class:~pcdsdevices.lxe.LaserTimingCompensation (lxt_ttc) which
  synchronously moves :class:LaserTiming (lxt) with
  :class:~pcdsdevices.lxe.TimeToolDelay (txt) to compensate so that the
  true laser x-ray delay by using the lxt-value and the result of time tool
  data analysis, avoiding double-counting.
• Adds :class:~pcdsdevices.lxe.TimeToolDelay, an alias for
  :class:~pcdsdevices.pseudopos.DelayNewport with additional contextual
  information and room for future development.
• Add LaserInCoupling device for TMO.
• Add ArrivalTimeMonitor device for TMO.
• Add ReflaserL2SI device for TMO.

Bugfixes

• Fixed a typo in a ValueError exception in
  :meth:pcdsdevices.state.StatePositioner.check_value.
• A read-only PV was erroneously marked as read-write in
  :class:pcdsdevices.gauge.GaugeSerialGPI, component autozero.
  All other devices were audited, finding no other RBV-related read-only items.
• The direction of :class:LaserTiming (lxt) was inverted and is now
  fixed.
• Allow setting of :class:~ophyd.EpicsMotor limits when unset in the motor
  record (i.e., (0, 0)) when using
  :class:~pcdsdevices.epics_motor.EpicsMotorInterface.

Maintenance

• Added a copy-pastable example to
  :class:~pcdsdevices.component.UnrelatedComponent to ease creation of new
  devices.
• Catch :class:~ophyd.utils.LimitError in all
  :class:pcdsdevices.interface.MvInterface moves, reporting a simple error by
  way of the interface module-level logger.

Contributors

• cristinasewell
• klauer
• zlentz