View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0026295 | Community | OCCT:Modeling Algorithms | public | 2015-05-29 22:16 | 2017-08-11 12:02 |
| Reporter | ickby | Assigned To | |||
| Priority | normal | Severity | major | ||
| Status | new | Resolution | open | ||
| Platform | Amd64 | OS | Ubuntu | ||
| Product Version | 6.8.0 | ||||
| Summary | 0026295: Sweep fails with BRepFill_ContactOnBorder | ||||
| Description | Trying to sweep a section along a given path with an auxillery spine fails when the contact type is set to BRepFill_ContactOnBorder. It works with BRepFill_NoContact. | ||||
| Steps To Reproduce | pload ALL restore section.brep restore profile1.brep restore profile2.brep explode section explode profile1 explode profile2 mksweep profile1_1 addsweep section_1 -T -R setsweep -G profile2_1 0 2 buildsweep sw -S An exception was caught 0x7f528391c327 : Standard_NullObject: BRepAdaptor_Curve::No geometry ** Exception ** 0x7f528391c327 : Standard_NullObject: BRepAdaptor_Curve::No geometry | ||||
| Additional information and documentation updates | The picture shows the section, the profiles and the sweep with BRepFill_NoContact as build with: setsweep -G profile2_1 0 0 The needed brep files are attached | ||||
| Tags | No tags attached. | ||||
| Test case number | bugs modalg_7 bug26295 | ||||
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sweep_NoContact.png (9,190 bytes) |
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section.brep (1,780 bytes) |
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profile1.brep (2,151 bytes) |
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profile2.brep (2,218 bytes) |
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The crash is gone in OCC 7.2 beta. But the sweep is still not created: Buildsweep : Not Done BuildSweep : One section can not be in contact with the guide However, from the reference documentation of BRepOffsetAPI_MakePipeShell I would suspect that the section gets scaled to touch the guide. It states: "the auxiliary spine becomes a boundary of the swept surface and the width of section varies along the path." This seems to not be the case. Maybe a clearification of the documentation is needed. |
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profile3.brep (2,592 bytes) |
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OCC7.2beta: For testing I moved the guide to start exactly at the tip of the section (uploaded as profile3). An access violation now occurs and the build sweep does not follow the guide: pload ALL restore section.brep restore profile1.brep restore profile3.brep explode section explode profile1 explode profile3 mksweep profile1_1 addsweep section_1 -T -R setsweep -G profile3_1 0 2 An exception was caught 00000000020A4FC0 : OSD_Exception_ACCESS_VIOLATION: ACCESS VIOLATION at address 0x0000000000000038 during 'READ' operation** Exception ** 00000000020A4FC0 : OSD_Exception_ACCESS_VIOLATION: ACCESSVIOLATION at address 0x0000000000000038 during 'READ' operation buildsweep sw -S |
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Problem described in issue is reproduced on current state of OCCT. |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2015-05-29 22:16 | ickby | New Issue | |
| 2015-05-29 22:16 | ickby | Assigned To | => msv |
| 2015-05-29 22:16 | ickby | File Added: sweep_NoContact.png | |
| 2015-05-29 22:17 | ickby | File Added: section.brep | |
| 2015-05-29 22:17 | ickby | File Added: profile1.brep | |
| 2015-05-29 22:18 | ickby | File Added: profile2.brep | |
| 2015-06-01 10:04 |
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Assigned To | msv => ifv |
| 2017-08-08 15:00 | ickby | Note Added: 0069206 | |
| 2017-08-08 15:03 | ickby | Note Edited: 0069206 | |
| 2017-08-08 15:03 | ickby | File Added: profile3.brep | |
| 2017-08-08 15:07 | ickby | Note Added: 0069208 | |
| 2017-08-11 12:02 |
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Test case number | => bugs modalg_7 bug26295 |
| 2017-08-11 12:02 |
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Note Added: 0069309 |
