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IDProjectCategoryView StatusDate SubmittedLast Update
0014376Open CASCADEOCCT:Meshpublic2006-12-25 14:472012-11-09 10:18
ReportermpvAssigned Toifv 
PrioritynormalSeveritytrivial 
Status closedResolutionfixed 
OSLinux 
Fixed in Version6.2.1 
Summary0014376: Shading triangulation of face is not computed
DescriptionIt is impossible to visualize the attached Face_8.brep in shading mode using
standard OCC visualization mechanizms.
Simpler way to reproducte this bug is to launch the next sequence of commands:

BRep_Builder aBuilder;
TopoDS_Shape aShape;
BRepTools::Read(aShape, "Face_8.brep", aBuilder);
BRepMesh_IncrementalMesh aIMesh(aSh, 0.45110277533, Standard_False, PI/9.);
TopLoc_Location aLocation;
Handle(Poly_Triangulation) aTriang =
BRep_Tool::Triangulation(TopoDS::Face(aShape), aLocation);

Result trianguilation is null. Note that incremental mesh parameters for this
face are calculated by standard visualization tools.

Note: this bug is from NPAL 11172.
Additional information
and documentation updates		Documentation remark, added by MPV 2007-01-24 08:23:32:

Changes:
If triangulation algo is failed, try it again with better precision. It is
slower, but this case is very rare. Performance in most cases must stay the same.
Modified entities:
BRepMesh_FastDiscret.cdl
BRepMesh_FastDiscret.cxx
Triangle.hxx
triangle.c
TagsNo tags attached.
Test case number

Attached Files

  • Face_8.tgz (224,418 bytes)
  • OCC14376fix.tgz (144,880 bytes)
  • OCC14376-v2.tar.gz (146,599 bytes)
  • OCC14376-v2-mkv.tar.gz (18,281 bytes)
  • OCC14376-v3-mkv.tar.gz (44,280 bytes)
  • S8 (344 bytes)
  • OCC14376-v3-mpv.tgz (144,383 bytes)
  • OCC14376-v4-mpv.tgz (124,396 bytes)
  • occ14376_fix1.tar.gz (126,316 bytes)

Activities

2006-12-25 12:47

 

Face_8.tgz (224,418 bytes)

2006-12-25 13:03

 

OCC14376fix.tgz (144,880 bytes)

2006-12-28 13:20

 

OCC14376-v2.tar.gz (146,599 bytes)

2007-01-15 15:54

 

OCC14376-v2-mkv.tar.gz (18,281 bytes)

2007-01-23 15:46

 

OCC14376-v3-mkv.tar.gz (44,280 bytes)

2007-01-24 14:38

 

S8 (344 bytes)

2007-02-05 10:26

 

OCC14376-v3-mpv.tgz (144,383 bytes)

2007-02-09 08:13

 

OCC14376-v4-mpv.tgz (124,396 bytes)

2007-05-30 14:52

 

occ14376_fix1.tar.gz (126,316 bytes)

Issue History

Date Modified Username Field Change
2006-12-25 18:34 bugmaster BugsThisDependsOn => 11172
2007-01-11 13:42 bugmaster Assigned To bugmaster => mpv
2007-01-11 13:42 bugmaster Status new => assigned
2007-01-11 13:44 bugmaster Status assigned => resolved
2007-01-11 13:45 bugmaster Status resolved => tested
2007-01-23 15:20 bugmaster Status tested => verified
2007-02-09 21:01 bugmaster Assigned To mpv => bugmaster
2007-02-09 21:01 bugmaster Status verified => assigned
2007-02-09 21:02 bugmaster Assigned To bugmaster => mpv
2007-02-09 21:06 bugmaster Status assigned => tested
2007-02-26 11:47 bugmaster Assigned To mpv => ifv
2007-02-26 11:47 bugmaster Status tested => assigned
2007-03-16 11:57 ifv Status assigned => resolved
2007-06-01 12:47 bugmaster CC => apv
2007-06-07 16:21 bugmaster Status resolved => tested
2007-07-27 17:14 bugmaster Status tested => verified
2009-06-23 17:25 bugmaster Status verified => closed
2009-06-23 17:25 bugmaster Resolution @0@ => fixed
2011-08-02 11:31 bugmaster Category OCCT:MOA => OCCT:Modeling Algorithms
2012-01-12 14:14 atp Description Updated
2012-01-12 14:14 atp Additional Information Updated
2012-11-09 10:18 abv Category OCCT:Modeling Algorithms => OCCT:Mesh