View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0030234 | Community | OCCT:Mesh | public | 2018-10-11 13:39 | 2018-11-11 12:00 |
| Reporter | adrien_schvalberg_technodigit | Assigned To | bugmaster | ||
| Priority | normal | Severity | major | ||
| Status | closed | Resolution | fixed | ||
| Platform | Windows | OS | VC++ 2015 | ||
| Product Version | 7.3.0 | ||||
| Target Version | 7.4.0 | Fixed in Version | 7.4.0 | ||
| Summary | 0030234: BRepMesh_IncrementalMesh fail to discretize some zero-length free edges | ||||
| Description | conditions: - enable Standard_ConstructionError exceptions in config - set the BRepMesh_IncrementalMesh to use relative deflection - try to mesh a shape with at least a zero-length free edge (for instance an edge with a 0-radius circle, as it can be found in the outer wire of a sphere) Then a Standard_ConstructionError exception will be raised inside BRepMesh_IncrementalMesh::discretizeFreeEdges() > CPnts_TangentialDeflection::CPnts_TangentialDeflection() > GCPnts_TangentialDeflection::Initialize() In my test, with a empty circle for instance, the computed deflection for this edge is less than Precision::Confusion(), which explains the exception. one possible fix would be to modify BRepMesh_ShapeTool::RelativeEdgeDeflection to have a minimum value strictly greater than Precison::Confusion() | ||||
| Steps To Reproduce | restore empty_circle.brep a incmesh a 0.005 -relative | ||||
| Tags | No tags attached. | ||||
| Test case number | bugs/mesh/bug30234 | ||||
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Dear adrien_schvalberg_technodigit, please attach BREP model with described behaviour. |
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empty_circle.brep (304 bytes) |
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load the brep (a 0-radius circle at origin), test discretization with BRepMesh_IncrementalMesh mesher(theEdge, 0.005, Standard_True); |
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Thanks a lot for the use case. Seems the problem is not reproduced using patch 0026106. However, it has not been integrated to master yet. |
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Thanks for the update. to be sure: as I already reported it, you must have an OCC config with Standard_ConstructionError exceptions enabled (ie with #if !defined No_Exception && !defined No_Standard_ConstructionError directive evaluating to true) to reproduce the problem |
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Great notice - I had different configs for master build and patch. So, unfortunately, it does not solve the problem( We will investigate it. Thanks for the details! |
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I think I'm mistakenly assigned to this issue. I didn't notice since when... |
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Branch CR30234 has been created by nbv. SHA-1: 4fffe4945e69a4a879a27401c8e4bcf231ffdae5 Detailed log of new commits: Author: nbv Date: Thu Nov 8 15:18:16 2018 +0300 0030234: BRepMesh_IncrementalMesh fail to discretize some zero-length free edges Test case for the issue has been created. This problem is fixed by the patch 0030345. |
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Dear Mikhail, Please review the branch CR30234. Test results: Linux: http://jenkins-test-12.nnov.opencascade.com/view/CR30234-master_NBV/view/TESTING/job/CR30234-master_NBV-OCCT-Debian80-64-opt-test-restart/HTML_20Report/ Windows: http://jenkins-test-12.nnov.opencascade.com/view/CR30234-master_NBV/view/TESTING/job/CR30234-master_NBV-OCCT-Windows-64-VC14-opt-test-restart/HTML_20Report/ |
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Reviewed. |
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Adding new test case |
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Branch CR30234 has been deleted by inv. SHA-1: 4fffe4945e69a4a879a27401c8e4bcf231ffdae5 |
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occt: master 1f17d5fb 2018-11-08 12:18:16
Committer: bugmaster Details Diff |
0030234: BRepMesh_IncrementalMesh fail to discretize some zero-length free edges Test case for the issue has been created. This problem is fixed by the patch 0030345. |
Affected Issues 0030234 |
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| add - tests/bugs/mesh/bug30234 | Diff File | ||
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2018-10-11 13:39 | adrien_schvalberg_technodigit | New Issue | |
| 2018-10-11 13:39 | adrien_schvalberg_technodigit | Assigned To | => oan |
| 2018-10-11 14:24 | oan | Note Added: 0079889 | |
| 2018-10-11 14:29 | oan | Assigned To | oan => adrien_schvalberg_technodigit |
| 2018-10-11 14:29 | oan | Status | new => feedback |
| 2018-10-11 15:21 | adrien_schvalberg_technodigit | File Added: empty_circle.brep | |
| 2018-10-11 15:23 | adrien_schvalberg_technodigit | Note Added: 0079894 | |
| 2018-10-11 17:59 | oan | Relationship added | related to 0026106 |
| 2018-10-11 18:00 | oan | Note Added: 0079906 | |
| 2018-10-11 18:03 | oan | Steps to Reproduce Updated | |
| 2018-10-11 18:09 | adrien_schvalberg_technodigit | Note Added: 0079907 | |
| 2018-10-11 18:19 | oan | Relationship deleted | related to 0026106 |
| 2018-10-11 18:24 | oan | Note Added: 0079908 | |
| 2018-10-16 10:19 | adrien_schvalberg_technodigit | Note Added: 0079997 | |
| 2018-10-16 14:14 | oan | Assigned To | adrien_schvalberg_technodigit => oan |
| 2018-10-16 14:14 | oan | Status | feedback => assigned |
| 2018-11-06 17:59 | oan | Relationship added | related to 0030345 |
| 2018-11-08 13:59 | oan | Assigned To | oan => nbv |
| 2018-11-08 15:20 | git | Note Added: 0080959 | |
| 2018-11-08 15:55 |
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Note Added: 0080963 | |
| 2018-11-08 15:55 |
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Assigned To | nbv => msv |
| 2018-11-08 15:55 |
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Status | assigned => resolved |
| 2018-11-08 18:25 |
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Note Added: 0080989 | |
| 2018-11-08 18:25 |
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Assigned To | msv => bugmaster |
| 2018-11-08 18:25 |
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Status | resolved => reviewed |
| 2018-11-09 15:02 | bugmaster | Target Version | => 7.4.0 |
| 2018-11-09 15:20 | bugmaster | Test case number | => bugs/mesh/bug30234 |
| 2018-11-09 15:20 | bugmaster | Note Added: 0081006 | |
| 2018-11-09 15:20 | bugmaster | Status | reviewed => tested |
| 2018-11-11 11:52 | bugmaster | Changeset attached | => occt master 1f17d5fb |
| 2018-11-11 11:52 | bugmaster | Status | tested => verified |
| 2018-11-11 11:52 | bugmaster | Resolution | open => fixed |
| 2018-11-11 12:00 | git | Note Added: 0081023 |
