def scan_next_frame(self, frame_img, is_single_image=False):
self._frame_img = frame_img
self._frame_number += 1
self._is_single_image = is_single_image
result = OpenScanResult(self._frame_number)
result.set_old_barcode_data(self._old_barcode_data)
result.start_timer()
# Read all the barcodes in the image
try:
barcodes = self._perform_frame_scan()
result.set_barcodes(barcodes)
except NoBarcodesDetectedError as ex:
# TODO: logging the error
result.set_error(str(ex))
# Create a 'blank' geometry object to store the barcode locations
new_barcodes = result.new_barcodes()
num_new_barcodes = len(new_barcodes)
geometry = self._create_geometry(new_barcodes)
# Create the plate
if any(new_barcodes):
plate = Plate(self.plate_type, num_slots=num_new_barcodes)
plate.set_geometry(geometry)
for s, barcode in enumerate(new_barcodes):
plate.slot(s).set_barcode(barcode)
result.set_plate(plate)
result.end_timer()
return result
def _initialize_plate_from_barcodes(self):
for bc in self._barcodes:
bc.perform_read()
if self._any_valid_barcodes():
slot_scanner = self._create_slot_scanner()
self._plate = Plate(self.plate_type)
self._plate_scan = PlateScanner(self._plate, self._is_single_image)
self._plate_scan.new_frame(self._geometry, self._barcodes, slot_scanner)
