def acquire(global_PVs, params):
# Make sure that we aren't acquiring now
global_PVs['Cam1_Acquire'].put(DetectorIdle)
aps7bm.wait_pv(global_PVs['Cam1_Acquire'], DetectorIdle)
global_PVs['Cam1_FrameType'].put(FrameTypeData, wait=True)
global_PVs['Cam1_ImageMode'].put('Multiple', wait=True)
num_images = int(params.num_projections) * params.recursive_filter_n_images
global_PVs['Cam1_NumImages'].put(num_images, wait=True)
# Set trigger mode
global_PVs['Cam1_TriggerMode'].put('Overlapped', wait=True)
# start acquiring
global_PVs['Cam1_Acquire'].put(DetectorAcquire)
aps7bm.wait_pv(global_PVs['Cam1_Acquire'], DetectorAcquire)
log.info(' ')
log.info(' *** Fly Scan: Start!')
pso.fly(global_PVs, params)
# if the fly scan wait times out we should call done on the detector
if aps7bm.wait_pv(global_PVs['Cam1_Acquire'], DetectorIdle, 5) == False:
log.warning(' *** *** Camera did not finish acquisition')
global_PVs['Cam1_Acquire'].put(DetectorIdle)
log.info(' *** Fly Scan: Done!')
# Set trigger mode to internal for post dark and white
global_PVs['Cam1_TriggerMode'].put('Internal')
return pso.proj_positions
def set(global_PVs, params):
'''Sets up detector and arms it for PSO pulses.
'''
fname = params.file_name
# Set detectors
if params.camera_ioc_prefix in params.valid_camera_prefixes:
log.info(' ')
log.info(' *** setup Point Grey')
# Make sure that we aren't acquiring now
global_PVs['Cam1_Acquire'].put(DetectorIdle)
aps7bm.wait_pv(global_PVs['Cam1_Acquire'], DetectorIdle)
#Set up the XML files to determine HDF file layout
attrib_file = Path.joinpath(
Path(__file__).parent, 'mctDetectorAttributes1.xml')
global_PVs['Cam1_AttributeFile'].put(str(attrib_file), wait=True)
layout_file = Path.joinpath(Path(__file__).parent, 'mct3.xml')
global_PVs['HDF1_XMLFileName'].put(str(layout_file), wait=True)
global_PVs['Cam1_ArrayCallbacks'].put('Enable', wait=True)
global_PVs['Cam1_AcquirePeriod'].put(float(params.exposure_time),
wait=True)
global_PVs['Cam1_AcquireTime'].put(float(params.exposure_time),
wait=True)
log.info(' *** setup Point Grey: Done!')
else:
log.error('Detector %s is not defined' % params.camera_ioc_prefix)
return
if params.file_name is None:
log.warning(' *** hdf_writer will not be configured')
else:
_setup_hdf_writer(global_PVs, params, fname)
def stop_scan(global_PVs, params):
log.info(' ')
log.error(' *** Stopping the scan: PLEASE WAIT')
aps7bm.close_shutters(global_PVs, params)
global_PVs['Motor_SampleRot'].stop()
global_PVs['HDF1_Capture'].put(0)
aps7bm.wait_pv(global_PVs['HDF1_Capture'], 0)
pso.cleanup_PSO()
flir.init(global_PVs, params)
log.error(' *** Stopping scan: Done!')
def _setup_hdf_writer(global_PVs, params, fname=None):
if params.camera_ioc_prefix in params.valid_camera_prefixes:
# setup Point Grey hdf writer PV's
log.info(' ')
log.info(' *** setup hdf_writer')
_setup_frame_type(global_PVs, params)
if params.recursive_filter == True:
log.info(' *** Recursive Filter Enabled')
global_PVs['Proc1_Enable_Background'].put('Disable', wait=True)
global_PVs['Proc1_Enable_FlatField'].put('Disable', wait=True)
global_PVs['Proc1_Enable_Offset_Scale'].put('Disable', wait=True)
global_PVs['Proc1_Enable_Low_Clip'].put('Disable', wait=True)
global_PVs['Proc1_Enable_High_Clip'].put('Disable', wait=True)
global_PVs['Proc1_Callbacks'].put('Enable', wait=True)
global_PVs['Proc1_Filter_Enable'].put('Enable', wait=True)
global_PVs['HDF1_ArrayPort'].put('PROC1', wait=True)
global_PVs['Proc1_Filter_Type'].put(Recursive_Filter_Type,
wait=True)
global_PVs['Proc1_Num_Filter'].put(int(
params.recursive_filter_n_images),
wait=True)
global_PVs['Proc1_Reset_Filter'].put(1, wait=True)
global_PVs['Proc1_AutoReset_Filter'].put('Yes', wait=True)
global_PVs['Proc1_Filter_Callbacks'].put('Array N only', wait=True)
log.info(' *** Recursive Filter Enabled: Done!')
else:
global_PVs['Proc1_Filter_Enable'].put('Disable')
global_PVs['HDF1_ArrayPort'].put(global_PVs['Cam1_AsynPort'].get(),
wait=True)
global_PVs['HDF1_AutoSave'].put('Yes')
global_PVs['HDF1_DeleteDriverFile'].put('No')
global_PVs['HDF1_EnableCallbacks'].put('Enable', wait=True)
global_PVs['HDF1_BlockingCallbacks'].put('No')
totalProj = (int(params.num_projections) +
int(params.num_dark_images) +
int(params.num_white_images))
global_PVs['HDF1_NumCapture'].put(totalProj, wait=True)
global_PVs['HDF1_ExtraDimSizeN'].put(totalProj, wait=True)
global_PVs['HDF1_FileWriteMode'].put(str(params.file_write_mode),
wait=True)
if fname is not None:
global_PVs['HDF1_FileName'].put(str(fname), wait=True)
global_PVs['HDF1_Capture'].put(1)
aps7bm.wait_pv(global_PVs['HDF1_Capture'], 1)
log.info(' *** setup hdf_writer: Done!')
else:
log.error('Detector %s is not defined' % params.camera_ioc_prefix)
return
def take_image(global_PVs, params):
log.info(' *** taking a single image')
nRow = global_PVs['Cam1_SizeY_RBV'].get()
nCol = global_PVs['Cam1_SizeX_RBV'].get()
image_size = nRow * nCol
global_PVs['Cam1_ImageMode'].put('Single', wait=True)
global_PVs['Cam1_NumImages'].put(1, wait=True)
global_PVs['Cam1_TriggerMode'].put('Internal', wait=True)
wait_time_sec = int(params.exposure_time) + 5
global_PVs['Cam1_Acquire'].put(DetectorAcquire, wait=True, timeout=1000.0)
time.sleep(0.1)
if aps7bm.wait_pv(global_PVs['Cam1_Acquire'], DetectorIdle,
wait_time_sec) == False: # adjust wait time
global_PVs['Cam1_Acquire'].put(DetectorIdle)
log.warning(
'The camera failed to finish acquisition. Set to done manually.')
# Get the image loaded in memory
img_vect = global_PVs['Cam1_Image'].get(count=image_size)
if global_PVs['Cam1_Image_Dtype'].get(as_string=True) == 'UInt16':
img_vect = img_vect.astype(np.uint16)
img = np.reshape(img_vect, [nRow, nCol])
return img
def acquire_dark(global_PVs, params):
log.info(' *** Dark Fields')
# Make sure that we aren't acquiring now
global_PVs['Cam1_Acquire'].put(DetectorIdle)
aps7bm.wait_pv(global_PVs['Cam1_Acquire'], DetectorIdle)
global_PVs['Cam1_ImageMode'].put('Multiple', wait=True)
global_PVs['Cam1_FrameType'].put(FrameTypeDark, wait=True)
global_PVs['Cam1_TriggerMode'].put('Internal', wait=True)
num_images = int(
params.num_white_images) * params.recursive_filter_n_images
global_PVs['Cam1_NumImages'].put(num_images, wait=True)
wait_time = int(num_images) * params.exposure_time + 5
global_PVs['Cam1_Acquire'].put(DetectorAcquire)
time.sleep(1.0)
if aps7bm.wait_pv(global_PVs['Cam1_Acquire'], DetectorIdle, wait_time):
log.info(' *** Dark Fields: Done!')
else:
log.error(' *** *** Timeout.')
raise Exception
def checkclose_hdf(global_PVs, params):
''' Check if the HDF5 file has closed. Will wait for data to flush to disk.
'''
buffer_queue = global_PVs['HDF1_QueueSize'].get(
) - global_PVs['HDF1_QueueFree'].get()
frate = 55.0
wait_on_hdd = buffer_queue / frate + 10
log.info(' *** Buffer Queue (frames): %d ' % buffer_queue)
log.info(' *** Wait HDD (s): %f' % wait_on_hdd)
if aps7bm.wait_pv(
global_PVs["HDF1_Capture_RBV"], 0, wait_on_hdd
) == False: # needs to wait for HDF plugin queue to dump to disk
global_PVs["HDF1_Capture"].put(0)
log.info(' *** File was not closed => forced to close')
log.info(' *** before %d' % global_PVs["HDF1_Capture_RBV"].get())
aps7bm.wait_pv(global_PVs["HDF1_Capture_RBV"], 0, 5)
log.info(' *** after %d' % global_PVs["HDF1_Capture_RBV"].get())
if (global_PVs["HDF1_Capture_RBV"].get() == 1):
log.error(
' *** ERROR HDF FILE DID NOT CLOSE; add_theta will fail')
def init(global_PVs, params):
'''Performs initialization of camera.
Takes a frame to make sure we have frame data.
'''
if params.camera_ioc_prefix in params.valid_camera_prefixes:
log.info(' *** init Point Grey camera')
global_PVs['HDF1_Capture'].put(0, wait=True)
global_PVs['HDF1_EnableCallbacks'].put('Disable', wait=True)
global_PVs['Cam1_TriggerMode'].put('Internal', wait=True) #
global_PVs['Cam1_TriggerMode'].put(
'Overlapped', wait=True
) # sequence Internal / Overlapped / internal because of CCD bug!!
global_PVs['Cam1_TriggerMode'].put('Internal', wait=True) #
global_PVs['Proc1_Filter_Callbacks'].put('Every array')
global_PVs['Cam1_ImageMode'].put('Single', wait=True)
global_PVs['Cam1_Display'].put(1)
global_PVs['Cam1_Acquire'].put(DetectorAcquire)
aps7bm.wait_pv(global_PVs['Cam1_Acquire'], DetectorAcquire, 2)
global_PVs['Proc1_Callbacks'].put('Disable')
global_PVs['Proc1_Filter_Enable'].put('Disable')
global_PVs['HDF1_ArrayPort'].put(global_PVs['Cam1_AsynPort'].get())
log.info(' *** init Point Grey camera: Done!')