running 3D Trace Elements DRS

liuying

Hi Bence,
I encountered some problems when I use 3D trace elements DRS, the system message told me:
2023/3/7 11:26:59 There was an error in your python runDRS function:
<class 'SystemError'>: <built-in method get_source of PythonQtImport.PythonQtImporter object at 0x000001C5055AF690> returned NULL without setting an error
File "<string>",line 1,in<module>
2023/3/7 11:26:59 Error Type: <class 'SystemError'>
Error Value: <built-in method get_source of PythonQtImport.PythonQtImporter object at 0x000001C5D1D47C30> returned NULL without setting an error
Error Traceback:
2023/3/7 11:26:54 There was an issue calculating the surface for Ru101
Do you know how to solve it?

Bence

Hi liuying

It sounds like the DRS is trying to calculate a calibration surface for Ru101 but you probably don't have values for Ru in your Reference Material files?

Are you using the latest version of iolite and the DRS? It was recently updated with the release of v4.8.2. When iolite starts it prompts you to update any scripts on your computer that have been changed since the last release. I would recommend ensuring 3D Trace Elements is selected and updated.

If that doesn't work, please let us know.

Kind regards,
Bence

liuying

Hi Bence,
Thank you for your reply. I checked the calibration references, it indeed has no values for Ru101. I changed the external standard and updated iolite to V4.8.2. I also updated the scripts especially the 3D Trace Elements when iolite was relaunched. The new error message appears, as follows:

2023/3/14 12:33:22 There was an error in your python runDRS function:
<class 'SystemError'>: <built-in method get_source of PythonQtImport.PythonQtImporter object at 0x000001BB20C19CB0> returned NULL without setting an error
File "<string>"; line 1; in <module>
2023/3/14 12:33:21 Error Type: <class 'SystemError'>
Error Value: <built-in method get_source of PythonQtImport.PythonQtImporter object at 0x000001BB21BCC6D0> returned NULL without setting an error
Error Traceback:

Is my 3D trace element script damaged?

Bence

Hi liuying

It does sound like your version of the file has something wrong with it. You can download a copy from ioilte's GitHub repository:

https://github.com/iolite-LA-ICP-MS/iolite4-python-examples/tree/master/drs

There are instructions on how to download python scripts from GitHub here:

https://notes.iolite.xyz/posts/downloadingfromgithub/

Please let us know if you have any troubles after updating your script.

-Bence

liuying

Bence
Hi Bence,
I download and install 3D trace elements, the new message appears:
There was an error in your python script:
<class 'ModuleNotFoundError'>: No module named 'iolite_helpers'
File "C:/Users/86156/Documents/iolite4/DRS/3d_trace_elements.py"; line 67; in <module>
from iolite_helpers import fitLine; formatResult

This seems to be a new problem, how can I solve it?

Bence

Hi liuying

It seems that your python packages and paths have somehow become scrambled. I would recommend following the steps outlined by Joe here:

https://forum.iolite.xyz/d/201-3d-trace-elements-drs-webinar-recording/8

Please let me know if that doesn't fix it for you.

Kind regards,
Bence

liuying

Bence Hi, thanks for your instant reply.
I typed the whole python code into the python workspace, checked the result, then told iolite to use a different path using python:
from iolite.QtCore import QSettings
QSettings().setValue('Paths/PythonHelpersPath', 'C:/Users/86156/Documents/iolite4/python3.8/site-packages').

And run the first code, it told me:
C:/Users/86156/Documents/iolite4/python3.8/site-packages

The result was the same as the path in the python site packages of the preferences. I restarted iolite, but the error message still existed. Besides, I don't know why the Python 3.8 file always exists.

Joe

liuying

Have you tried the alternative approach where you trigger the first run dialog to appear again? To do so, you run the following code and then restart iolite:

from iolite.QtCore import QSettings
QSettings().setValue('FirstRun', True)

This way may be easier to get right as you choose the path graphically.

All the best,

liuying

Joe
Actually, I tried this code and the software restarted and showed the interface for resetting the path, but the problem wasn't resolved at the time. Maybe I set something incorrectly.
This time I ran the code again and the previous error didn't appear, but a new prompt showed up.

There was an error in your python runDRS function:
<class 'RuntimeError'>: std::runtime_error: [DataManager::timeSeries] no matches for
File "C:/Users/86156/Documents/iolite4/Plugins/Data reduction schemes/3d_trace_elements.py"; line 918; in runDRS
indexChannel = data.timeSeries(settings["IndexChannel"])

I tried changing the index-channel element at the bottom of the DRS, the program could continue running, but I don't understand the purpose of this index. Also, the 3D surface coordinate graph didn't appear, which is confusing me.

Bence

Hi liuying

It's not clear from the screenshot what the issue might be. Would you mind sending your session file to the support email address so that we can look into it for you?

Kind regards,
Bence