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0023171Community[OCCT] OCCT:Modeling Algorithmspublic2012-05-24 03:462017-11-16 16:05
dingzh 
gka 
highmajor 
assignedopen 
WindowsVC++ 201064 bit
[OCCT] 6.5.3 
 
bugs modalg_7 bug23171_1, bug23171_2
0023171: Got wrong result after stitching
Load attached brep file, and try to stitch them into a shell using API BRepOffsetAPI_Sewing sewer(1.0e-6, Standard_True, Standard_True, Standard_True, Standard_False); but the result looks strange. OCC6.5.1 runs no problem for this sample.
Thanks.

In DRAW:

pload MODELING
restore stitch.brep a
sewing r 0.000001 a
checkshape r
tolerance r

Shape is said to be Ok, but tolerance is bad in 6.5.3:

Tolerance MAX=1.1999920974414735 AVG=0.36444915680763462 MIN=9.9999999999999995e
-008
FACE : MAX=9.9999999999999995e-008 AVG=9.9999999999999995e-008 MIN=9.99999999
99999995e-008
EDGE : MAX=1.1999920974414735 AVG=0.24021845948829471 MIN=9.9999999999999995e
-008
VERTEX : MAX=1.1999920974414735 AVG=0.48123186398844969 MIN=0.0001
No tags attached.
rar stitch.rar (71,681) 2012-05-24 03:46
https://tracker.dev.opencascade.org/
? tube_surf.igs (33,702) 2012-12-08 04:31
https://tracker.dev.opencascade.org/
Issue History
2012-05-24 03:46dingzhNew Issue
2012-05-24 03:46dingzhAssigned To => jgv
2012-05-24 03:46dingzhFile Added: stitch.rar
2012-05-24 10:09abvAssigned Tojgv => gka
2012-05-24 10:09abvPrioritynormal => high
2012-05-24 10:09abvSeverityminor => major
2012-05-24 10:09abvStatusnew => assigned
2012-05-24 10:09abvSteps to Reproduce Updatedbug_revision_view_page.php?rev_id=3948#r3948
2012-12-08 04:30dingzhNote Added: 0022630
2012-12-08 04:31dingzhFile Added: tube_surf.igs
2017-11-16 16:05mkvTest case number => bugs modalg_7 bug23171_1, bug23171_2
2017-11-16 16:05mkvNote Added: 0072295

Notes
(0022630)
dingzh   
2012-12-08 04:30   
Hi OCC team,
  How about this bug now? I got several other similar stitching bugs. If you can tell me how to fix it, I will implement the modification into my local OCC6.5.3 project.

Thanks.
(0072295)
mkv   
2017-11-16 16:05   
Fixed in OCCT6.7.0.