# Get available resolutions
ret = llt.get_resolutions(hLLT, available_resolutions, len(available_resolutions))
if ret < 1:
raise ValueError("Error getting resolutions : " + str(ret))
if resolution not in available_resolutions:
raise AttributeError("Wrong resolution")
# Scanner type
ret = llt.get_llt_type(hLLT, ct.byref(scanner_type))
if ret < 1:
raise ValueError("Error scanner type: " + str(ret))
# Scanner type
ret = llt.set_resolution(hLLT, resolution)
if ret < 1:
raise ValueError("Error setting resolution: " + str(ret))
# Set partial profile
ret = llt.set_profile_config(hLLT, llt.TProfileConfig.CONTAINER)
if ret < 1:
raise ValueError("Error setting profile config: " + str(ret))
ret = llt.set_packet_size(hLLT, 320)
if ret < 1:
raise ValueError("Error setting packet size: " + str(ret))
# Set shutter time
ret = llt.set_feature(hLLT, llt.FEATURE_FUNCTION_SHUTTERTIME, 100)
if ret < 1:
def connect(self, test=False):
"""Connect to the scanner and setup for measurement
Raises:
ValueError -- Getting interfaces failed
ValueError -- Setting interface failed
Exception -- Cant connect to interface
ValueError -- Getting resolutions failed
AttributeError -- Wrong resolutuion
ValueError -- Error setting scanner type
ValueError -- Error setting resolutin
ValueError -- Error setting profile type
ValueError -- Error setting transfer type
"""
# Parametrize transmission --- Important: make sure this is compliant
# to sensor
self.scanner_type = ct.c_int(0)
# Init profile buffer and timestamp info
available_resolutions = (ct.c_uint * 4)()
available_interfaces = [ct.create_string_buffer(8) for i in range(6)]
available_interfaces_p = (ct.c_char_p *
6)(*map(ct.addressof, available_interfaces))
self.hLLT = llt.create_llt_device()
ret = llt.get_device_interfaces(available_interfaces_p,
len(available_interfaces))
if ret < 1:
raise ValueError("Error getting interfaces : " + str(ret))
if_index = 0
if_found = False
for i, available_interface in enumerate(available_interfaces_p):
if self.serial in available_interface:
if_found = True
if_index = i
if not if_found:
status(
self.name,
"Serial is not defined or not available, connecting to the first one",
STATE.INFO)
else:
status(self.name, "Connecting to %s" % (self.serial))
ret = llt.set_device_interface(self.hLLT,
available_interfaces[if_index])
if ret < 1:
raise ValueError("Error setting device interface: " + str(ret))
# Connect
ret = llt.connect(self.hLLT)
if ret < 1:
raise Exception("Error connect: " + str(ret))
if test:
return
# Get available resolutions
ret = llt.get_resolutions(self.hLLT, available_resolutions,
len(available_resolutions))
if ret < 1:
raise ValueError("Error getting resolutions : " + str(ret))
if self.resolution not in available_resolutions:
raise AttributeError("Wrong resolution")
# Scanner type
ret = llt.get_llt_type(self.hLLT, ct.byref(self.scanner_type))
if ret < 1:
raise ValueError("Error scanner type: " + str(ret))
# Scanner type
ret = llt.set_resolution(self.hLLT, self.resolution)
if ret < 1:
raise ValueError("Error setting resolution: " + str(ret))
# Set profile config
ret = llt.set_profile_config(self.hLLT, llt.TProfileConfig.PROFILE)
if ret < 1:
raise ValueError("Error setting profile config: " + str(ret))
p = ct.c_void_p()
# Register new packet callback
ret = llt.register_buffer_callback(
self.hLLT, llt.buffer_cb_func(new_packet_callback_wrapper), p)
if ret < 1:
raise ValueError("Error registering new packet callback: " +
str(ret))
# Warm-up time
time.sleep(0.2)