View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0000131 | Open CASCADE | OCCT:Data Exchange | public | 2002-01-16 14:31 | 2006-06-29 09:15 |
| Reporter | bugmaster | Assigned To | |||
| Priority | immediate | Severity | trivial | ||
| Status | closed | Resolution | unable to reproduce | ||
| OS | All | ||||
| Fixed in Version | 5.1.0 | ||||
| Summary | 0000131: Problems IGES reading | ||||
| Description | Pre-study for Renault: Problems are mostly around IGES reading, with strange behaviouir on "groups from IGES". Also this shows a problem of robustness in the viewer (it should not crash, while it can skip a face if the model is not good). Because discussions with Renault are on, it would be the best to have a first diagnostic (even if no fix) for next Monday (21 JAN), else at least for end of the month, is it possible. Analysis of chassis.igs (all is on C40) MAJOR problem When converting it as a whole, problems appear When converting the faces one by one or through selection, all are (seem) OK Faces badly oriented (wire is reversed). N0s of faces (explo.) + IGES entity 254 : 4120 380 : 6619 282 : 4515 278 : 4441 345 : 6010 338 : 5848 387 : 6869 381 : 6653 305 : 5103 A Face is clearly wrong : see number of vertices and how the edges are built : some have C3D only (even if they are limited by the same vertex), some have pcurve only ... It is face n0 378 coming from iGES entity 6584 Result : the sample import export crashes (because of face 378) on the whole file, but passes, and with no orientation error AS IT SEEMS AT FIRST GLANCE, on a file in which the GROUP has been removed. Crash in sample import export seems to be in BRepMesh_IncrementalMesh because some edges have no pcurve : in such case, it makes sense to produce no mesh for that face, so it will not be shaded. Analysis of finv2.igs Less critical problem It contains a face and a free wire. We can ignore the wire. It is well displayed in DRAW, but the Sample Import Export doesn't shade it. Analysis of fhole.igs It contains a face with 2 wires (holed face). In DRAW, the internal wire is badly oriented, while it seems to be well oriented when converted by Sample Import Export. | ||||
| Tags | No tags attached. | ||||
| Test case number | |||||
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2002-01-16 14:33 | bugmaster | Assigned To | bugmaster => pdn |
| 2002-01-16 14:33 | bugmaster | Status | new => assigned |
| 2003-06-19 13:38 |
|
CC | => |
| 2003-06-19 13:40 |
|
Assigned To | pdn => skl |
| 2003-06-19 18:24 | bugmaster | Status | assigned => closed |
| 2003-06-19 18:24 | bugmaster | Resolution | @0@ => unable to reproduce |
| 2011-08-02 11:12 | bugmaster | Category | OCCT:DTE => OCCT:Data Exchange |