View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0024593 | Community | OCCT:Data Exchange | public | 2014-02-04 04:31 | 2016-04-20 15:49 |
| Reporter | thomhong | Assigned To | |||
| Priority | normal | Severity | minor | ||
| Status | closed | Resolution | fixed | ||
| Platform | Windows | OS | VC++ 2010 | ||
| Product Version | 6.7.0 | ||||
| Target Version | 7.0.0 | Fixed in Version | 7.0.0 | ||
| Summary | 0024593: Missing surfaces from STL output | ||||
| Description | After importing the model from a STEP file, the STL export is missing several surfaces (the majority of the model is missing). | ||||
| Steps To Reproduce | 1. Open the attached STEP file (using the ImportExport sample project) 2. Select the body in the model 3. Export to STL | ||||
| Tags | No tags attached. | ||||
| Test case number | bugs mesh bug24593_1 bug24593_2 | ||||
| duplicate of | 0024594 | closed | Community | Missing surfaces from STL output (second example) |
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285330.stp (750,768 bytes) |
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Dear thomhong, The shapes attached to issues 0024593 and 0024594 contain invalid faces that in fact are the major bodies of the model. checkshape command gives the following report: # checkshape for model from file 285330.stp point p3 -7.44760383725687 2.91937661636663 -57.2427868351376 On Shape faulty_1 : BRepCheck_SelfIntersectingWire On Shape faulty_2 : BRepCheck_UnorientableShape Shape faulty_1 on shape faulty_2 : BRepCheck_SelfIntersectingWire Faulty shapes in variables faulty_1 to faulty_2 # checkshape for model from file 284965.stp point p2 -4.75528258147577 -1.54508497187474 -8.51077772912605 On Shape faulty_1 : BRepCheck_SelfIntersectingWire On Shape faulty_2 : BRepCheck_UnorientableShape Shape faulty_1 on shape faulty_2 : BRepCheck_SelfIntersectingWire Faulty shapes in variables faulty_1 to faulty_2 As a result, it is impossible to produce correct mesh based on incorrect geometry. The solution is to resolve inconsistencies introduced by design using the application where the shape was modeled. With best regards, OAN |
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Thank you for looking into this issue - I will ask the model provider to verify this issue in the model and provide further feedback. |
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After some discussion and further testing, it appears that the STL output is not at fault. The import from STEP to the OpenCASCADE representation seems to be the root issue - this is reproducible using the ImportExport sample program and examining the shaded BRep model. Can you please assign this to the appropriate party? Thanks! |
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Dear GKA, could you please investigate. |
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281946.stp (719,632 bytes) |
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Branch CR24593 has been created by oan. SHA-1: 2254eff41d4bc82f59885ebe0cd71a14d8af9190 Detailed log of new commits: Author: oan Date: Fri Jan 29 14:02:55 2016 +0300 Added test cases |
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Dear Bugmaster, it seems that this case has became OK due to fixes for shape healing and mesh since 6.7.0. Please verify. Test case has been added to branch CR24593. |
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Branch CR24593 has been updated by apn. SHA-1: 0fb781e69d337feb3bda821b96bad00f5ff45e5a Detailed log of new commits: Author: apn Date: Thu Feb 18 15:46:50 2016 +0300 Small corrections of test cases |
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Test case: bugs mesh bug24593_1 - OK http://occt-tests/bug24593_Lin/bugs/mesh/bug24593_1.html http://occt-tests/bug24593_WNT/bugs/mesh/bug24593_1.html bugs mesh bug24593_2 - OK http://occt-tests/bug24593_Lin/bugs/mesh/bug24593_2.html http://occt-tests/bug24593_WNT/bugs/mesh/bug24593_2.html |
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Branch CR24593 has been updated forcibly by apn. SHA-1: f5c36acb127e6f387e16c70f73e7dc424b5a573c |
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Branch CR24593 has been updated forcibly by apn. SHA-1: 9c7763a749f444149088e2961b60bcc77392dbae |
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Branch CR24593 has been deleted by kgv. SHA-1: 9c7763a749f444149088e2961b60bcc77392dbae |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2014-02-04 04:31 | thomhong | New Issue | |
| 2014-02-04 04:31 | thomhong | Assigned To | => oan |
| 2014-02-04 04:31 | thomhong | File Added: 285330.stp | |
| 2014-05-23 14:16 | oan | Relationship added | duplicate of 0024594 |
| 2014-05-23 14:50 | oan | Note Added: 0029496 | |
| 2014-05-23 14:50 | oan | Assigned To | oan => thomhong |
| 2014-05-23 14:50 | oan | Status | new => feedback |
| 2014-05-23 20:29 | thomhong | Note Added: 0029501 | |
| 2014-07-02 04:01 | thomhong | Note Added: 0029940 | |
| 2014-07-02 09:14 | oan | Assigned To | thomhong => gka |
| 2014-07-02 09:14 | oan | Note Added: 0029941 | |
| 2014-07-03 17:51 | oan | Category | OCCT:Mesh => OCCT:Data Exchange |
| 2014-08-21 03:12 | thomhong | File Added: 281946.stp | |
| 2014-09-11 18:35 |
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Status | feedback => assigned |
| 2014-09-11 18:35 |
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Target Version | => 7.1.0 |
| 2016-01-29 14:03 | git | Note Added: 0050231 | |
| 2016-01-29 14:09 | oan | Assigned To | gka => bugmaster |
| 2016-01-29 14:09 | oan | Note Added: 0050234 | |
| 2016-02-01 10:08 | oan | Status | assigned => feedback |
| 2016-02-02 10:09 | bugmaster | Assigned To | bugmaster => apn |
| 2016-02-18 15:47 | git | Note Added: 0050958 | |
| 2016-02-18 15:52 | apn | Note Added: 0050960 | |
| 2016-02-18 15:55 | git | Note Added: 0050961 | |
| 2016-02-18 15:56 | apn | Test case number | => bugs mesh bug24593_1 bug24593_2 |
| 2016-02-18 15:56 | apn | Assigned To | apn => bugmaster |
| 2016-02-18 15:56 | apn | Status | feedback => tested |
| 2016-02-19 11:22 |
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Target Version | 7.1.0 => 7.0.0 |
| 2016-02-19 12:41 | git | Note Added: 0051004 | |
| 2016-02-21 08:52 |
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Changeset attached | => occt master 183acc2f |
| 2016-02-21 08:52 |
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Assigned To | bugmaster => abv |
| 2016-02-21 08:52 |
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Status | tested => verified |
| 2016-02-21 08:52 |
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Resolution | open => fixed |
| 2016-04-17 13:07 | git | Note Added: 0052797 | |
| 2016-04-20 15:43 |
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Fixed in Version | => 7.0.0 |
| 2016-04-20 15:49 |
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Status | verified => closed |
