CUVIS.PYIL cannot start from calib file

[zerodamage]

ERROR:root:unhandled exception in funciton: cuvis_acq_cont_create_from_calib
NoneType: None
Traceback (most recent call last):
File "/home/christian/cuvis_test.py", line 4, in
acq = cuvis.AcquisitionContext(calibration)
File "/home/christian/.local/lib/python3.10/site-packages/cuvis/AcquisitionContext.py", line 29, in init
raise SDKException()
cuvis.cuvis_aux.SDKException: unhandled exception in funciton: cuvis_acq_cont_create_from_calib
Exception ignored in: <function AcquisitionContext.del at 0x7c90619e6dd0>
Traceback (most recent call last):
File "/home/christian/.local/lib/python3.10/site-packages/cuvis/AcquisitionContext.py", line 563, in del
cuvis_il.p_int_assign(_ptr, self._handle)
File "/home/christian/.local/lib/python3.10/site-packages/cuvis_il/cuvis_il.py", line 102, in p_int_assign
return _cuvis_pyil.p_int_assign(obj, value)
TypeError: in method 'p_int_assign', argument 2 of type 'int'

[birkholz-cubert]

Hello,

Could you also provide the source code excerpt where the error is happening.

If i would need to guess this looks like the calibration object from which you try to instanciate the AcquisitionContext does not exist.
If you try to instanciate the calibration from a cu3c file you would also need to wrap it first in a SessionFile object.

if (factoryDir.is_dir()):
    calibration = cuvis.Calibration(factoryDir)
elif (factoryDir.suffix == '.cu3c'):
    print("using .cu3c file as calibration instead of factory dir...")
    calibFile = cuvis.SessionFile(factoryDir)
    calibration = cuvis.Calibration(calibFile)

[zerodamage]

Sorry I lost the test code, however I've tried to launch the ROS2 node, and the error is present in the same form and line there. The ros2_interface.py is as in the ros2 branch of the cuvis.ros repo, repeated below:

https://github.com/cubert-hyperspectral/cuvis.ros/blob/62d9bfda4e7022215ba290abcbe5ca2a86d1dcb8/scripts/ros2_interface.py#L56

Surrounding lines:

self.get_logger().info("loading calibration, processing and acquisition context (factory)...")
calibration = cuvis.Calibration(factoryDir)

self.get_logger().info("loading user settings...")
cuvis.init(userSettingsDir)
cuvis.set_log_level("info")
self.processingContext = cuvis.ProcessingContext(calibration)
_self.acquisitionContext = cuvis.AcquisitionContext(calibration)_ #error here

A failure of the AcquisitionContext, however I am using a calibration factory directory, so do not believe your input above applies?

I have a factory folder with the following files:

-rw-rw-r-- 1 christian christian 1221 Mar 9 13:03 core.settings
-rw-rw-r-- 1 christian christian 2004648 Mar 9 13:03 init.daq
-rw-rw-r-- 1 christian christian 351 Mar 9 13:03 mira.settings
-rw-rw-r-- 1 christian christian 12967545 Mar 9 13:03 SpRad.cu3
-rw-rw-r-- 1 christian christian 561 Mar 9 13:03 system.settings
-rw-rw-r-- 1 christian christian 1387 Mar 9 13:03 ultris50.settings

The launch error is listed below:

$ ros2 launch cuvis_ros hyperdriver.launch.xml
[INFO] [launch]: All log files can be found below /home/christian/.ros/log/2026-03-18-15-25-00-833779-christian-ThinkPad-P1-Gen-7-26402
[INFO] [launch]: Default logging verbosity is set to INFO
[INFO] [ros2_interface.py-1]: process started with pid [26405]
[ros2_interface.py-1] [INFO] [1773843901.308985901] [hyper_driver]: loading calibration, processing and acquisition context (factory)...
[ros2_interface.py-1] [INFO] [1773843901.374951256] [hyper_driver]: loading user settings...
[ros2_interface.py-1] Loading product 'Ultris S5'
[ros2_interface.py-1] Project dispersion image
[ros2_interface.py-1] Processing dispersion cache 0.00%
[ros2_interface.py-1] Processing dispersion cache 7.14%
[ros2_interface.py-1] Processing dispersion cache 14.29%
[ros2_interface.py-1] Processing dispersion cache 21.43%
[ros2_interface.py-1] Processing dispersion cache 28.57%
[ros2_interface.py-1] Processing dispersion cache 35.71%
[ros2_interface.py-1] Processing dispersion cache 42.86%
[ros2_interface.py-1] Processing dispersion cache 50.00%
[ros2_interface.py-1] Processing dispersion cache 57.14%
[ros2_interface.py-1] Processing dispersion cache 64.29%
[ros2_interface.py-1] Processing dispersion cache 71.43%
[ros2_interface.py-1] Processing dispersion cache 78.57%
[ros2_interface.py-1] Processing dispersion cache 85.71%
[ros2_interface.py-1] Processing dispersion cache 92.86%
[ros2_interface.py-1] Processing dispersion cache 100.00%
[ros2_interface.py-1] CUDA device(s) found.
[ros2_interface.py-1] LutManager is using GpuLutProcessor.
[ros2_interface.py-1] Using "Lens" calibration.
[ros2_interface.py-1] Using default cubalize algorithm 'lut'.
[ros2_interface.py-1] *** Ultris S5 => loaded ***
[ros2_interface.py-1] Processing context loaded Ultris S5, serial number is 'BS5234702'.
[ros2_interface.py-1] error: Failed to initialize device node.
[ros2_interface.py-1] error: Exception handler received unknown or unexpected exception.
[ros2_interface.py-1] error: Error creating device node.
[ros2_interface.py-1] error: Exception handler received unknown or unexpected exception.
[ros2_interface.py-1] error: unhandled exception: unhandled exception in funciton: cuvis_acq_cont_create_from_calib
[ros2_interface.py-1] Traceback (most recent call last):
[ros2_interface.py-1] File "/home/christian/ros2ws/install/cuvis_ros/lib/cuvis_ros/ros2_interface.py", line 100, in
[ros2_interface.py-1] main()
[ros2_interface.py-1] File "/home/christian/ros2ws/install/cuvis_ros/lib/cuvis_ros/ros2_interface.py", line 93, in main
[ros2_interface.py-1] camDriver = CameraDriver()
[ros2_interface.py-1] File "/home/christian/ros2ws/install/cuvis_ros/lib/cuvis_ros/ros2_interface.py", line 56, in init
[ros2_interface.py-1] self.acquisitionContext = cuvis.AcquisitionContext(calibration)
[ros2_interface.py-1] File "/home/christian/.local/lib/python3.10/site-packages/cuvis/AcquisitionContext.py", line 29, in init
[ros2_interface.py-1] raise SDKException()
[ros2_interface.py-1] cuvis.cuvis_aux.SDKException: unhandled exception in funciton: cuvis_acq_cont_create_from_calib
[ros2_interface.py-1] Exception ignored in: <function AcquisitionContext.del at 0x718ee53e93f0>
[ros2_interface.py-1] Traceback (most recent call last):
[ros2_interface.py-1] File "/home/christian/.local/lib/python3.10/site-packages/cuvis/AcquisitionContext.py", line 563, in del
[ros2_interface.py-1] cuvis_il.p_int_assign(_ptr, self._handle)
[ros2_interface.py-1] File "/home/christian/.local/lib/python3.10/site-packages/cuvis_il/cuvis_il.py", line 102, in p_int_assign
[ros2_interface.py-1] return _cuvis_pyil.p_int_assign(obj, value)
[ros2_interface.py-1] TypeError: in method 'p_int_assign', argument 2 of type 'int'
[ERROR] [ros2_interface.py-1]: process has died [pid 26405, exit code 1, cmd '/home/christian/ros2ws/install/cuvis_ros/lib/cuvis_ros/ros2_interface.py --ros-args -r __node:=hyper_driver --params-file /tmp/launch_params_wxtrfzlw'].

[birkholz-cubert]

Okay,

so the code of the cuvis.ros repo is probably out of date at some parts.

Can you provide:

• the cuvis sdk verison you are using
• the installed cuvis-pyil version
• the installed cuvis python wrapper version

[zerodamage]

Versions here:
Name: cuvis
Version: 3.3.1
Summary: CUVIS Python SDK.
Home-page: https://www.cubert-hyperspectral.com/
Author: Cubert GmbH, Ulm, Germany
Author-email: SDK@cubert-gmbh.com
License: Apache License 2.0
Location: /home/christian/.local/lib/python3.10/site-packages
Requires: cuvis-il
Required-by:

Name: cuvis-il
Version: 3.3.1
Summary: Compiled Python Bindings for the CUVIS SDK.
Home-page: https://www.cubert-hyperspectral.com/
Author: Cubert GmbH, Ulm, Germany
Author-email: SDK@cubert-gmbh.com
License: Apache License 2.0
Location: /home/christian/.local/lib/python3.10/site-packages
Requires: numpy
Required-by: cuvis

Package: cuviscommon
Version: 3.3.1+ubuntu-1
Status: install ok installed
Priority: optional
Section: base
Maintainer: Cubert GmbH service@cubert-gmbh.de
Installed-Size: unknown
Depends: libxerces-c3.2 (>= 3.2.0), libspatialite7 (>= 4.3.0), libcrypto++8 (>= 8.6.0), libsqlite3-0 (>= 3.22.0), libgps28 (>= 3.22), libtiffxx5 (>= 4.1.0), libboost-locale-dev (>= 1.74.0), libtbb2 (>= 2020.1), gpsd
Download-Size: unknown
APT-Manual-Installed: yes
APT-Sources: /var/lib/dpkg/status
Description: Cuvis Common Libs and Dependencies

[birkholz-cubert]

Okay,

sorry for the confusion. But regarding the logged error:

[ros2_interface.py-1] error: Failed to initialize device node.
[ros2_interface.py-1] error: Exception handler received unknown or unexpected exception.
[ros2_interface.py-1] error: Error creating device node.
[ros2_interface.py-1] error: Exception handler received unknown or unexpected exception.
[ros2_interface.py-1] error: unhandled exception: unhandled exception in funciton: cuvis_acq_cont_create_from_calib

i think that is connected to the specific camera calibration file.

So my advice would be to file a issue with http://support.cubert-hyperspectral.com/. Also you could set the log-level to debug to see if there is more information is reported, or take a look at the log file, which under linux should be under var/log/cuvis (when a log.cfg is placed under /etc/cuvis.

Hope this helps.