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IDProjectCategoryView StatusLast Update
0033166CommunityOCCT:Modeling Algorithmspublic2023-08-01 15:06
ReporterifvAssigned Tomsv 
Status newResolutionopen 
Target VersionUnscheduled 
Summary0033166: BRepOffset_MakeOffset fails to build joints in intersection mode
DescriptionCurrently result of test "bugs modalg_7 bug30054" is OK.
But result is really invalid and contains some invalid faces (see example on picture), which has not closed wires and very large vertex and edges tolerances in order to fill gaps.
It is necessary to fix real problems of offset algorithm instead of increasing tolerances of subshapes.
Steps To ReproduceRun test "bugs modalg_7 bug30054"
or, using attached file of issue 0030054:

restore RectLoft.brep sh
thickshell result sh 1 i

and then explode result on faces.
result_4, 5, 6, 7, 8, 9, 11, 12 are bad faces with gaps
TagsNo tags attached.
Test case number

Attached Files

  • BadFace1.png (14,078 bytes)


child of 0030054 verifiedinv BRepOffset_MakeOffset fails to build joints in intersection mode 



2022-10-11 16:20


BadFace1.png (14,078 bytes)

Issue History

Date Modified Username Field Change
2022-10-11 16:20 ifv New Issue
2022-10-11 16:20 ifv Assigned To => msv
2022-10-11 16:20 ifv File Added: BadFace1.png
2022-10-11 16:21 ifv Relationship added child of 0030054
2023-03-06 19:42 eugeny.belousov_162739 Target Version 7.7.1 => 7.8.0
2023-08-01 15:06 dpasukhi Target Version 7.8.0 => Unscheduled