PyPrimeMesh CAD *.scdoc issue?

[dkowollik]

Hi,

if I try the following lines of code, I get a "CAD import failed." error using the *.scdoc file.

from ansys.meshing import prime
prime_client = prime.launch_prime()
model = prime_client.model
file_io = prime.FileIO(model)
import_params = prime.ImportCadParams(model=model)
file_io.import_cad(
        file_name='some_model.scdoc',
        params=import_params
    )
prime_client.exit()

Traceback:

  File "C:\Python310_64_ansys\lib\site-packages\ansys\meshing\prime\core\fileio.py", line 586, in import_cad
    import_result = super().import_cad(temp_file_name, params)
  File "C:\Python310_64_ansys\lib\site-packages\ansys\meshing\prime\autogen\fileio.py", line 692, in import_cad
    result = self._comm.serve(self._model, command_name, self._object_id, args=args)
  File "C:\Python310_64_ansys\lib\site-packages\ansys\meshing\prime\internals\error_handling.py", line 577, in wrapper_error_code
    raise PrimeRuntimeError(
ansys.meshing.prime.internals.error_handling.PrimeRuntimeError: CAD import failed.

The default seems to be: cad_reader_route=prime.CadReaderRoute.PROGRAMCONTROLLED. If I use WORKBENCH, the import works fine:

from ansys.meshing import prime
prime_client = prime.launch_prime()
model = prime_client.model
file_io = prime.FileIO(model)
import_params = prime.ImportCadParams(model=model, cad_reader_route=prime.CadReaderRoute.WORKBENCH)
file_io.import_cad(
        file_name='some_model.scdoc',
        params=import_params
    )
prime_client.exit()

Which reader is used if the default option PROGRAMCONTROLLED is use?
I thought that the importer loops by default through all available reader routes in order to find an appropriate one.

[waltersma]

Hi @dkowollik

For SCDOC files with PROGRAMCONTROLLED the SPACECLAIM reader would be used. For a summary, see here.

Is it only a particular file you mention that fails?

[dkowollik]

Hi @waltersma,
for me this happens to any SCDOC file.

[aglowinski-danfoss]

Is there any update to this topic?

[waltersma]

Hi @dkowollik, @aglowinski-danfoss, just to confirm there is a change to the behaviour here for program controlled where since 0.7.0 and Ansys 25R1 SCDOC is now read using Discovery rather than SpaceClaim. You must have the applications installed for this to work and licenses available. Please can you confirm this is the case?

[dkowollik]

Now, the following code works fine for me. I tested this with 0.8.0 and Ansys 25R2.

from ansys.meshing import prime
prime_client = prime.launch_prime()
model = prime_client.model
file_io = prime.FileIO(model)
import_params = prime.ImportCadParams(model=model)
file_io.import_cad(
        file_name='some_model.scdoc',
        params=import_params
    )
prime_client.exit()

[waltersma]

Thanks for providing the feedback @dkowollik !

[waltersma]

I understand that to be 0.8.0 with Ansys 25R1?

[dkowollik]

Yes, it was 25R1 with SP2.