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Home / Developer Corner / Forums / Usage issues / Opencascade is retruning wrong result for Union of the attached Solids.

Opencascade is retruning wrong result for Union of the attached Solids.

Opencascade is retruning wrong result for Union of the attached Solids.
Sharad Verma 2012/06/13 13:16
Hi All,

These two solids are correct -> Checked using BRepCheck_Analyzer.
The Shells are correct -> Checked using BRepCheck_Analyzer.
The faces are correct -> Checked using BRepCheck_Analyzer.
The edges are correct -> Checked using BRepCheck_Analyzer.

Even I fixed all the entities with ShapeFix packages, but nothing works for the solids.

But still, Union of the two solids is Incorrect. Please check the attached zipped file containing Solid1.brep, Solid2.brep and Union.brep.

Help Guys.

Regards,
Sharad Verma
You have to be logged in to download the attached file
PG 2012/06/13 15:42
failing in 6.5.3 test harness too.
faulty shapes in result.
-------------------------------------
On Shape faulty_1 :
BRepCheck_UnorientableShape
Shape faulty_2 on shape faulty_1 :
BRepCheck_NotClosed

Faulty shapes in variables faulty_1 to faulty_2
Sharad Verma 2012/06/13 18:48
Thanks for the reply PG. But i could not really understand what you want to say? Can you pleas elaborate further. A small code snippet will be very useful. or tell me which class to use, to test the same.

Thanks again for your response.
PG 2012/06/14 12:07
basically tested ur brep files for boolean operation in OCC test harness application
to check the output.
Sharad Verma 2012/06/14 12:18
Yes PG,

The result is incorrect. I just want to know, whether there is any problem with the input solids, or this is a bug in OpenCascade?

Can you please help me with this issue?
Forum supervisor 2012/06/14 13:04
Dear Sharad,
If you have doubts in the result you may register the issue in Mantis Bugtracker,
which is available now via the Collaborative portal - http://dev.opencascade.org/index.php?q=home/get_involved.
The issue will be analyzed and you will get a qualified answer.
Regards
Sharad Verma 2012/06/28 13:50
Hi, PG.

Did you find out, why OCC is returning wrong result with the attached solids.

Regards,
Sharad Verma
PG 2012/06/28 15:08
It seems to be an OCC bug as it is reprodicible in Test harness. For public user's , only bug tracker is there. good luck - pg
 
 
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