def main(args):
"""
Handles the command line arguments
args is the list of arguments passed
return (int): value to return to the OS as program exit code
"""
# arguments handling
parser = argparse.ArgumentParser()
parser.add_argument("--role",
dest="role",
metavar="<component>",
help="display and update an image on the screen")
parser.add_argument("--gridsize",
dest="gridsize",
nargs=2,
metavar="<gridsize>",
type=int,
default=None,
help="size of the grid of spots in x y, default 14 14")
parser.add_argument("--log-level",
dest="loglev",
metavar="<level>",
type=int,
choices=[0, 1, 2],
default=0,
help="set verbosity level (0-2, default = 0)")
options = parser.parse_args(args[1:])
# Set up logging before everything else
loglev_names = [logging.WARNING, logging.INFO, logging.DEBUG]
loglev = loglev_names[min(len(loglev_names) - 1, options.loglev)]
# change the log format to be more descriptive
handler = logging.StreamHandler()
logging.getLogger().setLevel(loglev)
handler.setFormatter(
logging.Formatter(
'%(asctime)s (%(module)s) %(levelname)s: %(message)s'))
logging.getLogger().addHandler(handler)
if options.role:
if get_backend_status() != BACKEND_RUNNING:
raise ValueError(
"Backend is not running while role command is specified.")
ccd = model.getComponent(role=options.role)
live_display(ccd, ccd.data, kill_ccd=False, gridsize=options.gridsize)
else:
ccd = ueye.Camera("camera", "ccd", device=None)
ccd.SetFrameRate(2)
live_display(ccd, ccd.data, gridsize=options.gridsize)
return 0
def main(args):
"""
Handles the command line arguments
args is the list of arguments passed
return (int): value to return to the OS as program exit code
"""
# arguments handling
parser = argparse.ArgumentParser()
group = parser.add_mutually_exclusive_group()
group.add_argument("--role",
dest="role",
metavar="<component>",
help="display and update an image on the screen")
group.add_argument("--file",
metavar="<filename>",
dest="filename",
help="display and update an image on the screen")
parser.add_argument("--gridsize",
dest="gridsize",
nargs=2,
metavar="<gridsize>",
type=int,
default=None,
help="size of the grid of spots in x y, default 8 8")
parser.add_argument("--magnification",
dest="magnification",
type=float,
help="magnification (typically 40 or 50)")
parser.add_argument("--log-level",
dest="loglev",
metavar="<level>",
type=int,
choices=[0, 1, 2],
default=0,
help="set verbosity level (0-2, default = 0)")
options = parser.parse_args(args[1:])
# Set up logging before everything else
loglev_names = [logging.WARNING, logging.INFO, logging.DEBUG]
loglev = loglev_names[min(len(loglev_names) - 1, options.loglev)]
# change the log format to be more descriptive
handler = logging.StreamHandler()
logging.getLogger().setLevel(loglev)
handler.setFormatter(
logging.Formatter(
'%(asctime)s (%(module)s) %(levelname)s: %(message)s'))
logging.getLogger().addHandler(handler)
# Magnification: use cli input value. If none is specified, try to read out lens magnification.
try:
lens = model.getComponent(role="lens")
lens_mag = lens.magnification.value
except Exception as ex:
logging.debug("Failed to read magnification from lens, ex: %s", ex)
lens_mag = None
if options.magnification:
magnification = options.magnification
if lens_mag and lens_mag != magnification:
logging.warning(
"Requested magnification %s differs from lens magnification %s.",
magnification, lens_mag)
elif lens_mag:
magnification = lens_mag
logging.debug(
"No magnification specified, using lens magnification %s.",
lens_mag)
else:
magnification = DEFAULT_MAGNIFICATION
logging.warning("No magnification specified, falling back to %s.",
magnification)
pxsize = PIXEL_SIZE_SAMPLE_PLANE / magnification
if options.filename:
logging.info("Will process image file %s" % options.filename)
converter = dataio.find_fittest_converter(options.filename,
default=None,
mode=os.O_RDONLY)
data = converter.read_data(options.filename)[0]
fakeccd = StaticCCD(options.filename, "fakeccd", data)
live_display(fakeccd, fakeccd.data, pxsize, gridsize=options.gridsize)
elif options.role:
if get_backend_status() != BACKEND_RUNNING:
raise ValueError(
"Backend is not running while role command is specified.")
ccd = model.getComponent(role=options.role)
live_display(ccd,
ccd.data,
pxsize,
kill_ccd=False,
gridsize=options.gridsize)
else:
ccd = ueye.Camera("camera", "ccd", device=None)
ccd.SetFrameRate(2)
live_display(ccd, ccd.data, pxsize, gridsize=options.gridsize)
return 0