Workflow: Alias to/fro ProE
Alias and ProE are used in a complimentary fashion in many companies. Data transfer issues are usually caused by incompatible ways in which Alias and ProE operates.
- By default higher degree NURBS data is converted to cubic polynomial upon import into ProE.
- By default ProE uses relative tolerance system.
- By default ProE uses INCH as unit measurement.
Use the following configuration options in ProE. These options will allow least changes to the data transferred. The hidden option "intf_in_keep_high_deg_bspl_srfs yes" will allow transfer of higher degree geometry as it is.
Set the absolute accuracy in ProE same as the positional tolerances in Alias. Be careful about the following settings in Alias; Max Gap distance, Topology distance, curve fit distance and trim curve fit. In my experience, export/import using STEP, gives the best results. Ensured that the model is stitched before exporting to ProE.
Add the following options for IGES transfer. IGES does not contain solid information. Subsequently the surfaces need to be joined/merged in ProE, either automatically or manually to get a valid topology.
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