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|0031567||Community||[OCCT] OCCT:Data Exchange||public||2020-05-15 15:44||2020-06-04 14:59|
|Product Version||[OCCT] 7.4.0|
|Target Version||Fixed in Version|
|Summary||0031567: Data Exchange - Imported STeP model is missing two surfaces|
|Description||(This is really on 7.4.0, but that version is not available for selection).|
I analyzed one of the two surfaces (#586) and I see two problems.
A) EDGE_CURVE #49 is a NURBS with parametrization [0,1]: it's closed but not periodic.
It's limited by the same vertex, which projects at 0.997..., so its parametrization should become [0.997...,1.997...]. However, at StepToTopoDS_GeometricTool.cxx:305, these values are reset to [0,1].
B) Don't know if this is related to the above, but the face imports with 2 trimming edges, while in the STeP file there are 4.
So the resulting loop doesn't make much sense.
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|Test case number|
|Attached Files||STOCK_IMPELLER.STEP (72,569 bytes) 2020-05-15 15:44|
|2020-05-15 15:44||ventu||New Issue|
|2020-05-15 15:44||ventu||Assigned To||=> gka|
|2020-05-15 15:44||ventu||File Added: STOCK_IMPELLER.STEP|
|2020-06-04 14:59||kgv||Summary||Imported STeP model is missing two surfaces => Data Exchange - Imported STeP model is missing two surfaces|
|2020-06-04 14:59||kgv||Product Version||7.3.0 => 7.4.0|
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