def initialize(self):
"""Initialise the camera.
Open the connection, connect properties and populate settings
dict.
"""
try:
self.handle = SDK3.Open(self._index)
except Exception as e:
raise microscope.InitialiseError("Problem opening camera.") from e
if self.handle == None:
raise microscope.InitialiseError("No camera opened.")
for name, var in sorted(self.__dict__.items()):
if isinstance(var, ATProperty):
sdk_name = SDK_NAMES[name]
if not SDK3.IsImplemented(self.handle, sdk_name):
delattr(self, name)
continue
var.connect(self.handle, sdk_name)
if type(var) is ATCommand:
continue
is_readonly_func = var.is_readonly
if type(var) is ATEnum:
set_func = var.set_index
get_func = var.get_index
vals_func = var.get_available_values
else:
set_func = var.set_value
get_func = var.get_value
if type(var) is ATString:
vals_func = var.max_length
elif type(var) in (ATFloat, ATInt):
vals_func = lambda v=var: (v.min(), v.max())
else:
vals_func = None
if name in INVALIDATES_BUFFERS:
set_func = self.invalidate_buffers(set_func)
self.add_setting(
name.lstrip("_"),
PROPERTY_TYPES[type(var)],
get_func,
set_func,
vals_func,
is_readonly_func,
)
# Default setup.
self.set_cooling(True)
if not self._camera_model.getValue().startswith("SIMCAM"):
self._trigger_mode.set_string("Software")
self._cycle_mode.set_string("Continuous")
else:
_logger.warn("No hardware found - using SIMCAM")
def callback(*args):
data = self._fetch_data(timeout=500)
timestamp = time.time()
if data is not None:
self._put(data, timestamp)
return 0
else:
return -1
self._exposure_callback = SDK3.CALLBACKTYPE(callback)
def isImplemented(self):
return SDK3.IsImplemented(self.handle, self.propertyName).value