View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0033482 | Community | OCCT:Modeling Algorithms | public | 2023-09-12 19:48 | 2023-11-17 13:09 |
| Reporter | j.bourgoin | Assigned To | akaftasev | ||
| Priority | normal | Severity | major | ||
| Status | feedback | Resolution | open | ||
| Platform | Windows | OS | VC++ 2022 | ||
| Product Version | 7.7.1 | ||||
| Target Version | Unscheduled | ||||
| Summary | 0033482: Modeling Algorithms - Bad result with BRepAlgoAPI_Common | ||||
| Description | Hi ! BRepAlgoAPI_Common can give no result although there is clearly a big common part between 2 shapes (see attached picture) | ||||
| Steps To Reproduce | You can use Tool and Argument joined in "NotDetected.zip" | ||||
| Additional information and documentation updates | A very slight transformation in Z of one shape give the right result. You can check with Argument and Tool in "Detected.zip". It looks like the result is bad when the shapes are perfectly aligned in Z (see picture). It seems that "curves" value in myDS can be wrong. Behaviour between good case and bad case is different in getBoundPaves (hierarchy is PutBoundPaveOnCurve / MakeBlocks / ... / IntersectShapes) : vertex and point compared are sometimes too different. | ||||
| Tags | No tags attached. | ||||
| Test case number | |||||
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Detected.zip (1,100 bytes) NotDetected.zip (1,098 bytes) Draw.png (92,904 bytes) |
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Dear @j.bourgoin. current problem can be solved by decreasing the tolerance for boolean operation (to 0.00001). If it is not your case, we can continue investigate this problem. |
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Dear @akaftasev, thanks a lot for your help. Indeed, this can be fixed by setting the tolerance to 0.00001 but it doesn't work with tolerance = 0 or tolerance = 0.0000001. The common part is big and I think it shouldn't depend on the tolerance. Maybe there's a "global" fix ? |
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Reminder sent to: akaftasev Hi @akaftasev, did you have time to check this issue and why a small change in the tolerance has a so big impact (and leads to wrong result) ? |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2023-09-12 19:48 | j.bourgoin | New Issue | |
| 2023-09-12 19:48 | j.bourgoin | Assigned To | => vglukhik |
| 2023-09-12 19:48 | j.bourgoin | File Added: Detected.zip | |
| 2023-09-12 19:48 | j.bourgoin | File Added: NotDetected.zip | |
| 2023-09-12 19:48 | j.bourgoin | File Added: Draw.png | |
| 2023-09-13 17:53 | dpasukhi | Assigned To | vglukhik => akaftasev |
| 2023-09-13 17:53 | dpasukhi | Target Version | => Unscheduled |
| 2023-09-13 17:53 | dpasukhi | Summary | Bad result with BRepAlgoAPI_Common => Modeling Algorithms - Bad result with BRepAlgoAPI_Common |
| 2023-09-19 16:44 | akaftasev | Assigned To | akaftasev => j.bourgoin |
| 2023-09-19 16:44 | akaftasev | Status | new => feedback |
| 2023-09-19 16:44 | akaftasev | Note Added: 0114189 | |
| 2023-10-02 19:31 | j.bourgoin | Note Added: 0114361 | |
| 2023-10-02 19:33 | j.bourgoin | Assigned To | j.bourgoin => akaftasev |
| 2023-11-17 13:09 | j.bourgoin | Note Added: 0114608 |
