Beamline Energy Implementation

(Work In Progress)

Reverse Engineer from GDA

Currently beamline energy is controlled in GDA from within beamlineSpecificEnergy.py

There is a class beamLineSpecificEnergy which inherits from beamLineEnergy

To do the alignment there are two implementations AutomatedAlign and QuickAlign

in beamLineEnergy it basically does the equivalent of

	def align_beam(self, quick_align): # Re-align button
			if quick_align:
				self.QuickAlign()
			else:
				self.energyController.moveTo(self.getPosition())
				self.align_beam_worker()

• The entry point for setting the energy is in beamLineEnergy.asynchronousMoveTo which overrides the asynchronousMoveTo in Scannable. ScannableMotionBase delegates moveTo to the async version.
• asynchronousMoveTo ultimately calls asynchronousMoveTo_worker in beamLineSpecificEnergy
• asynchronousMoveTo_worker performs a number of operations all on separate threads and then waits for them to finish
  • asynchronousMoveTo_worker creates a MoveVfmThread instance, which initialises VFM_X and VFM_Y stripe according to both the current and requested energy.
  • asynchronouseMoveTo_workersets the focus mode Not sure if we need to implement this
  • asynchronouseMoveTo_workersets detector energy Don't think we need to do this
  • asynchronouseMoveTo_workersets energy in ChangeEnergyThread, this is where it sets BeamLineEnergy_Bragg_eV and then calls energyController.moveTo()
  • asynchronouseMoveTo_worker keeps all its async threads tracked in energy_threads array and waits for them to complete at the end of the func

HandleCollectRequests

• do_automated_align - appears to be unused