Bug located in cad_import of Rhino files

[dkowollik]

🔍 Before submitting the issue

• I have searched among the existing issues
• I am using a Python virtual environment

🐞 Description of the bug

I found a refaceting issue during import of Rhino files in combination with prime.CadFaceter.PARASOLID and prime.CadReaderRoute.PROGRAMCONTROLLED or prime.CadReaderRoute.WORKBENCH. The facet resolution stays always the same and is always very coarse, which cannot be used for appropriate meshing.

Using ACIS for the Faceter or SPACECLAIM for the CadReaderRoute shows no issue. With these settings I can also succesfully use CUSTOM CadRefacetingResolution.

I attached a 25mm Sphere as Rhino model and Parasolid model, so that you can reproduce the refacet issues:
Sphere25.zip

📝 Steps to reproduce

import ansys.meshing.prime as pyprime
from ansys.meshing.prime import graphics

prime = pyprime.launch_prime()
filename = "Sphere25.x_t"
filename = "Sphere25.3dm"

res = pyprime.FileIO(prime.model).import_cad(
    filename,
    pyprime.ImportCadParams(
        model=prime.model,
        refacet=True,
        cad_reader_route=pyprime.CadReaderRoute.PROGRAMCONTROLLED,
        cad_refaceting_params=pyprime.CadRefacetingParams(
            model=prime.model,
            cad_faceter=pyprime.CadFaceter.PARASOLID,
            custom_surface_deviation_tolerance=1.,
            custom_normal_angle_tolerance=5.,
            max_edge_size_limit=pyprime.CadRefacetingMaxEdgeSizeLimit.ABSOLUTE,
            max_edge_size=5.,
            faceting_resolution=pyprime.CadRefacetingResolution.CUSTOM,
        )
    )
)


display = pyprime.graphics.Graphics(model=prime.model)
display()

res = pyprime.FileIO(prime.model).import_cad(
    filename,
    pyprime.ImportCadParams(
        model=prime.model,
        refacet=True,
        cad_reader_route=pyprime.CadReaderRoute.PROGRAMCONTROLLED,
        cad_refaceting_params=pyprime.CadRefacetingParams(
            model=prime.model,
            cad_faceter=pyprime.CadFaceter.PARASOLID,
            custom_surface_deviation_tolerance=2.,
            custom_normal_angle_tolerance=15.,
            max_edge_size_limit=pyprime.CadRefacetingMaxEdgeSizeLimit.ABSOLUTE,
            max_edge_size=5.,
            faceting_resolution=pyprime.CadRefacetingResolution.CUSTOM,
        )
    )
)


display = pyprime.graphics.Graphics(model=prime.model)
display()

prime.exit()

💻 Which operating system are you using?

Windows

📀 Which ANSYS version are you using?

No response

🐍 Which Python version are you using?

3.10

📦 Installed packages

aiohappyeyeballs==2.4.0
aiohttp==3.10.5
aiosignal==1.3.1
ansys-api-dbu==0.3.4
ansys-api-geometry==0.4.7
ansys-api-mapdl==0.5.2
ansys-api-mechanical==0.1.2
ansys-api-meshing-prime==0.1.3
ansys-api-platform-instancemanagement==1.1.0
ansys-dpf-composites==0.6.0
ansys-dpf-core==0.13.0
ansys-geometry-core==0.7.0
ansys-mapdl-core==0.68.4
ansys-mapdl-reader==0.54.0
ansys-math-core==0.1.5
ansys-mechanical-core==0.11.5
ansys-mechanical-env==0.1.7
ansys-meshing-prime==0.6.2
ansys-platform-instancemanagement==1.1.2
ansys-pythonnet==3.1.0rc3
ansys-tools-path==0.6.0
ansys-tools-visualization-interface==0.4.0
appdirs==1.4.4
asttokens==2.4.1
async-timeout==4.0.3
attrs==24.2.0
beartype==0.18.5
cachetools==5.5.0
certifi==2024.7.4
cffi==1.17.0
charset-normalizer==3.3.2
click==8.1.7
clr-loader==0.2.6
colorama==0.4.6
contourpy==1.3.0
cycler==0.12.1
decorator==5.1.1
exceptiongroup==1.2.2
executing==2.0.1
flexcache==0.3
flexparser==0.3.1
fonttools==4.53.1
frozenlist==1.4.1
geomdl==5.3.1
google-api-core==2.19.2
google-api-python-client==2.142.0
google-auth==2.34.0
google-auth-httplib2==0.2.0
googleapis-common-protos==1.65.0
grpcio==1.66.0
grpcio-health-checking==1.62.3
httplib2==0.22.0
idna==3.8
importlib_metadata==8.4.0
ipython==8.26.0
jedi==0.19.1
kiwisolver==1.4.5
matplotlib==3.9.2
matplotlib-inline==0.1.7
more-itertools==10.4.0
msgpack==1.0.8
multidict==6.0.5
numpy==1.26.4
packaging==24.1
parso==0.8.4
pillow==10.4.0
Pint==0.24.3
platformdirs==4.2.2
pooch==1.8.2
prompt_toolkit==3.0.47
proto-plus==1.24.0
protobuf==4.25.4
psutil==6.0.0
pure_eval==0.2.3
pyansys-tools-versioning==0.6.0
pyasn1==0.6.0
pyasn1_modules==0.4.0
pycparser==2.22
Pygments==2.18.0
pyiges==0.3.1
pyparsing==3.1.4
python-dateutil==2.9.0.post0
pyvista==0.43.10
requests==2.32.3
rsa==4.9
scipy==1.14.1
scooby==0.10.0
semver==3.0.2
six==1.16.0
stack-data==0.6.3
tabulate==0.9.0
tqdm==4.66.5
traitlets==5.14.3
trame==3.6.3
trame-client==3.2.5
trame-server==3.1.0
trame-vtk==2.8.10
trame-vuetify==2.6.2
typing_extensions==4.12.2
uritemplate==4.1.1
urllib3==2.2.2
vtk==9.3.1
wcwidth==0.2.13
websockets==12.0
wslink==2.1.2
yarl==1.9.4
zipp==3.20.1

[waltersma]

Hi @dkowollik, thanks for reporting this issue. I confirm I can reproduce. We will look into this and provide an update shortly.

APS 1126754