def trigger(self):
# There is nothing to do. Just report that we are done.
# Note: This really should not necessary to do --
# future changes to PVPositioner may obviate this code.
status = DeviceStatus(self)
status._finished()
return status
def trigger(self):
# There is nothing to do. Just report that we are done.
# Note: This really should not necessary to do --
# future changes to PVPositioner may obviate this code.
status = DeviceStatus(self)
status._finished()
return status
class HxnModalTrigger(HxnModalBase, TriggerBase):
def __init__(self, *args, image_name=None, **kwargs):
super().__init__(*args, **kwargs)
if image_name is None:
image_name = '_'.join([self.name, 'image'])
self._image_name = image_name
self._external_acquire_at_stage = True
def stop(self, success=False):
ret = super().stop(success=success)
self._acquisition_signal.put(0, wait=True)
return ret
def mode_internal(self):
super().mode_internal()
cam = self.cam
cam.stage_sigs[cam.acquire] = 0
ordered_dict_move_to_beginning(cam.stage_sigs, cam.acquire)
cam.stage_sigs[cam.num_images] = 1
cam.stage_sigs[cam.image_mode] = 'Single'
cam.stage_sigs[cam.trigger_mode] = 'Internal'
def mode_external(self):
super().mode_external()
total_points = self.mode_settings.total_points.get()
cam = self.cam
cam.stage_sigs[cam.num_images] = total_points
cam.stage_sigs[cam.image_mode] = 'Multiple'
cam.stage_sigs[cam.trigger_mode] = 'External'
def stage(self):
self._acquisition_signal.subscribe(self._acquire_changed)
staged = super().stage()
# In external triggering mode, the devices is only triggered once at
# stage
if self.mode == 'external' and self._external_acquire_at_stage:
self._acquisition_signal.put(1, wait=False)
return staged
def unstage(self):
try:
return super().unstage()
finally:
self._acquisition_signal.clear_sub(self._acquire_changed)
def trigger_internal(self):
if self._staged != Staged.yes:
raise RuntimeError("This detector is not ready to trigger."
"Call the stage() method before triggering.")
self._status = DeviceStatus(self)
self._acquisition_signal.put(1, wait=False)
self.dispatch(self._image_name, ttime.time())
return self._status
def trigger_external(self):
if self._staged != Staged.yes:
raise RuntimeError("This detector is not ready to trigger."
"Call the stage() method before triggering.")
self._status = DeviceStatus(self)
self._status._finished()
# TODO this timestamp is inaccurate!
if self.mode_settings.scan_type.get() != 'fly':
# Don't dispatch images for fly-scans - they are bulk read at the end
self.dispatch(self._image_name, ttime.time())
return self._status
def trigger(self):
mode_trigger = getattr(self, f'trigger_{self.mode}')
return mode_trigger()
def _acquire_changed(self, value=None, old_value=None, **kwargs):
'''This is called when the 'acquire' signal changes.'''
if self._status is None:
return
if (old_value == 1) and (value == 0):
# Negative-going edge means an acquisition just finished.
self._status._finished()
class ModalTrigger(ModalBase, TriggerBase):
def __init__(self, *args, image_name=None, **kwargs):
super().__init__(*args, **kwargs)
if image_name is None:
image_name = '_'.join([self.name, 'image'])
self._image_name = image_name
self._external_acquire_at_stage = True
def stop(self, success=False):
ret = super().stop(success=success)
self._acquisition_signal.put(0, wait=True)
return ret
def mode_internal(self):
super().mode_internal()
cam = self.cam
cam.stage_sigs[cam.acquire] = 0
ordered_dict_move_to_beginning(cam.stage_sigs, cam.acquire)
cam.stage_sigs[cam.num_images] = 1
cam.stage_sigs[cam.image_mode] = 'Single'
cam.stage_sigs[cam.trigger_mode] = 'Internal'
def mode_external(self):
super().mode_external()
total_points = self.mode_settings.total_points.get()
cam = self.cam
cam.stage_sigs[cam.num_images] = total_points
cam.stage_sigs[cam.image_mode] = 'Multiple'
cam.stage_sigs[cam.trigger_mode] = 'External'
def stage(self):
self._acquisition_signal.subscribe(self._acquire_changed)
staged = super().stage()
# In external triggering mode, the devices is only triggered once at
# stage
if self.mode == 'external' and self._external_acquire_at_stage:
self._acquisition_signal.put(1, wait=False)
return staged
def unstage(self):
try:
return super().unstage()
finally:
self._acquisition_signal.clear_sub(self._acquire_changed)
def trigger_internal(self):
if self._staged != Staged.yes:
raise RuntimeError("This detector is not ready to trigger."
"Call the stage() method before triggering.")
self._status = DeviceStatus(self)
self._acquisition_signal.put(1, wait=False)
self.dispatch(self._image_name, ttime.time())
return self._status
def trigger_external(self):
if self._staged != Staged.yes:
raise RuntimeError("This detector is not ready to trigger."
"Call the stage() method before triggering.")
self._status = DeviceStatus(self)
self._status._finished()
# TODO this timestamp is inaccurate!
if self.mode_settings.scan_type.get() != 'fly':
# Don't dispatch images for fly-scans-they are bulk read at the end
self.dispatch(self._image_name, ttime.time())
return self._status
def trigger(self):
mode_trigger = getattr(self, f'trigger_{self.mode}')
return mode_trigger()
def _acquire_changed(self, value=None, old_value=None, **kwargs):
'''This is called when the 'acquire' signal changes.'''
if self._status is None:
return
if (old_value == 1) and (value == 0):
# Negative-going edge means an acquisition just finished.
self._status._finished()