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At times step-files containing DEGENERATE_TOROIDAL_SURFACES fail to mesh properly #94

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ebknudsen opened this issue Feb 6, 2024 · 3 comments
Closed

At times step-files containing DEGENERATE_TOROIDAL_SURFACES fail to mesh properly #94

ebknudsen opened this issue Feb 6, 2024 · 3 comments

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@ebknudsen
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In some cases a geometry step-file containing one or more degenerate toroidal surfaces can fail to mesh. It seems to be an underlying problem with the step-importer.
@ebknudsen
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bowl_os_left_below_part
ends up being something like this:
bowl_left_below_pyocc

@ebknudsen ebknudsen changed the title At times step-files containing DEGENRATE_TOROIDAL_SURFACES fail to mesh properly At times step-files containing DEGENERATE_TOROIDAL_SURFACES fail to mesh properly Apr 29, 2024
@ebknudsen
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Using some CAD-tools (e.g. onshape) it is possible to choose to "export to step" with the convert surfaces to b-surfaces feature enabled. This can act as a workaround for this problem.

@ebknudsen
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The problem has been reported upstream to OpenCASCADE. Closing for now as solutions have to be upstream.

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