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openmodal / OpenModal

Open source experimental modal analysis software.
http://www.openmodal.com
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ENH: Analysis, bad array shapes after uff/unv import #16

Open matmr opened 7 years ago

matmr commented 7 years ago

We got this issue kindly referred to us by Mr. Silvano.

As soon as I launch [OpenModal], I have a visual c++ error R6034. Then if I press ok, openmodal GUI opens. I import my uff file, the geometry is loaded correctly the measurements also, but in the analysis tab nothing appears and I can't run an analysis.

I join the log file to this email so you can see yourself the errors appearing in the command window.

The log file: 1488458116_log.txt

The error: File "openModal\gui\widgets\analysis.py", line 1413, in update_model File "openModal\utils.py", line 89, in get_frf_from_mdd ValueError: could not broadcast input array from shape (16386) into shape (32772)

From what I see, there seems to be something going on in the analysis module, which could or could not be connected to issue #15. @sbtlaarzc could you take a look at it?

Further, it might be a bug but it might also be an 'unexpectedly' formatted .uff file, which unfortunately we can not have a look at. It would be good to know, where this uff came from (what software generated it).

Do we have any generic .uff files at hand in a repository somewhere so the users can test? If not, we should also think about that.

SilvanoPecoraro commented 7 years ago

Hello everybody! I managed to fix the issue by removing measurements that were recorded on the same node number. By only keeping one measurement per node, the analysis tab loads the FRFs correctly :)

I don't know if it's a bug, but the workaround seems to "fix" it.

matmr commented 7 years ago

Ok. Glad you managed to work around it 👍

Still, if multiple measurements can be present for one node, we have to handle that somehow.

I am leaving the issue open, changing from bug to enhancment