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ID | Project | Category | View Status | Date Submitted | Last Update | ||||||||
0031437 | Community | [OCCT] OCCT:Modeling Data | public | 2020-03-18 11:24 | 2020-09-15 12:09 | ||||||||
Reporter | Roman Lygin | ||||||||||||
Assigned To | msv | ||||||||||||
Priority | normal | Severity | crash | ||||||||||
Status | new | Resolution | open | ||||||||||
Platform | OS | OS Version | |||||||||||
Product Version | [OCCT] 7.1.0 | ||||||||||||
Target Version | [OCCT] 7.6.0* | Fixed in Version | |||||||||||
Summary | 0031437: Modeling Data - Offset surface throws exception when trying to evaluate at singularity point | ||||||||||||
Description | The offset surface comes from Parasolid. The underlying surface is a B-Spline (apparently from surface of revolution) and has a singularity. Geom_OffsetSurface cannot be evaluated at the singularity point as the normal to the base surface cannot be evaluated. In fact, the normal can be evaluated - just need a more adapted algorithm to compute at singularity. | ||||||||||||
Steps To Reproduce | In DRAW: restore bs offset os bs -2.5 or restore os An exception was caught 0000000003C12620 : Geom_UndefinedValue: GeomEvaluator_OffsetSurface::CalculateD0(): Unable to calculate normal ** Exception ** 0000000003C12620 : Geom_UndefinedValue: GeomEvaluator_OffsetSurface::CalculateD0(): Unable to calculate normal | ||||||||||||
Tags | No tags attached. | ||||||||||||
Test case number | |||||||||||||
Attached Files | ![]() ![]() | ||||||||||||
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Date Modified | Username | Field | Change |
2020-03-18 11:24 | Roman Lygin | New Issue | |
2020-03-18 11:24 | Roman Lygin | Assigned To | => msv |
2020-03-18 11:24 | Roman Lygin | File Added: surface.zip | |
2020-03-18 11:25 | Roman Lygin | File Added: screenshot.png | |
2020-09-15 12:08 | msv | Target Version | 7.5.0 => 7.6.0* |
2020-09-15 12:09 | msv | Summary | Offset surface throws exception when trying to evaluate at singularity point => Modeling Data - Offset surface throws exception when trying to evaluate at singularity point |
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