def read_chunk(self):
''' read a chunk of data '''
if not self.file_open:
counted_file_parser.open_counted_file(self.filename)
counted_file_parser.read_metadata()
self.file_open = True
# read the chunk
triplet_count = counted_file_parser.read_chunk()
# send all the rates to the curves
for curve in self.curves:
rate = 0
pattern = curve.pattern
if pattern[1] == 1:
rate = counted_file_parser.get_fpga_rate(pattern[0])
if pattern[1] == 2:
rate = counted_file_parser.get_number_rate(*pattern[0])
if pattern[1] == 3:
rate = counted_file_parser.get_special_rate(len(pattern[0]))
position = counted_file_parser.get_motor_controller_position(
self.scan_motor_controller)
step = counted_file_parser.get_scan_step()
loop = counted_file_parser.get_scan_loop()
curve.add_rate(step, loop, position, rate)
return triplet_count
def read_chunk(self):
''' read a chunk of data '''
if not self.file_open:
counted_file_parser.open_counted_file(self.filename)
counted_file_parser.read_metadata()
self.file_open=True
# read the chunk
triplet_count=counted_file_parser.read_chunk()
# if this chunk was aborted, return nothing
if counted_file_parser.get_aborted(): return 0
# get the step and loop
step=counted_file_parser.get_scan_step()
loop=counted_file_parser.get_scan_loop()
self.max_step=max(step+1, self.max_step)
self.max_loop=max(loop+1, self.max_loop)
self.all_triplets+=triplet_count
self.progress=self.all_triplets*3*4/float(self.filesize)
# append all the rates to the curves
for curve in self.curves:
rate=0
pattern=curve.pattern
if pattern[1]==1:
rate=counted_file_parser.get_fpga_rate(pattern[0])
elif pattern[1]==2:
if len(pattern[0])==2: rate=counted_file_parser.get_number_rate_8x2(*pattern[0])
if len(pattern[0])==4: rate=counted_file_parser.get_number_rate_4x4(*pattern[0])
elif pattern[1]==3:
rate=counted_file_parser.get_special_rate(len(pattern[0]))
curve.add_rate(step, loop, rate)
# and the position handler
for i in range(qy.settings.get('motors.count')):
position=counted_file_parser.get_motor_controller_position(i)
self.positions[i].add_position(step, loop, position)
return triplet_count
def read_chunk(self): ''' read a chunk of data ''' if not self.file_open: counted_file_parser.open_counted_file(self.filename) counted_file_parser.read_metadata() self.file_open=True # read the chunk triplet_count=counted_file_parser.read_chunk() # send all the rates to the curves for curve in self.curves: rate=0 pattern=curve.pattern if pattern[1]==1: rate=counted_file_parser.get_fpga_rate(pattern[0]) if pattern[1]==2: rate=counted_file_parser.get_number_rate(*pattern[0]) if pattern[1]==3: rate=counted_file_parser.get_special_rate(len(pattern[0])) position=counted_file_parser.get_motor_controller_position(self.scan_motor_controller) step=counted_file_parser.get_scan_step() loop=counted_file_parser.get_scan_loop() curve.add_rate(step, loop, position, rate) return triplet_count
