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IDProjectCategoryView StatusLast Update
0028800Open CASCADEOCCT:Modeling Algorithmspublic2019-10-25 14:23
Reporteremv Assigned Tomsv  
Status feedbackResolutionopen 
Product Version7.1.0 
Target VersionUnscheduled 
Summary0028800: The compound of two faces is incorrectly detected as self-interfered
DescriptionThe compound of two faces with shared edge is incorrectly detected as self-interfered shape. The checking tool says that the section curve produced between this faces. Actually, this section curve is incorrect because it is located out of the both faces. But this curve is so small (about 3.5e-6) that the classification tool classifies it as ON for both faces.

The problem has been detected during testing of the patch for the issue 0028775 in the test case boolean volumemaker A2. Note, that the whole case works correctly on VC12 but fails on vc10. The attached compound of faces has been saved in vc10 environment. The problem with bopcheck on the attached compound is reproduced on both vc10 and vc12 versions.
Steps To Reproducerestore bug28800_faces.brep cf
bopcheck cf
TagsNo tags attached.
Test case number

Attached Files

  • bug28800_faces.brep (16,722 bytes)


related to 0028775 closedbugmaster Code duplication removal across the BOPAlgo_PaveFiller algorithm 
related to 0029421 feedbackmsv Make face classifier algorithm stable and robust 



2017-06-01 11:10


bug28800_faces.brep (16,722 bytes)


2017-06-07 11:25

developer   ~0067173

Last edited: 2018-07-09 10:33

This problem should be fixed in frame of the issue 0029421.

Issue History

Date Modified Username Field Change
2017-06-01 11:08 emv New Issue
2017-06-01 11:08 emv Assigned To => msv
2017-06-01 11:08 emv Relationship added related to 0028775
2017-06-01 11:09 emv Steps to Reproduce Updated
2017-06-01 11:10 emv File Added: bug28800_faces.brep
2017-06-01 15:41 msv Assigned To msv => nbv
2017-06-01 15:41 msv Status new => assigned
2017-06-07 11:25 nbv Note Added: 0067173
2017-06-07 11:25 nbv Status assigned => feedback
2017-08-16 07:18 emv Target Version 7.2.0 => 7.3.0
2018-03-02 10:58 msv Target Version 7.3.0 => 7.4.0
2018-07-09 10:33 nbv Note Edited: 0067173
2018-07-19 15:36 nbv Relationship added related to 0029421
2019-08-12 12:43 msv Assigned To nbv =>
2019-08-12 12:43 msv Target Version 7.4.0 => Unscheduled
2019-10-25 14:23 abv Assigned To => msv