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IDProjectCategoryView StatusDate SubmittedLast Update
0031623Open CASCADE[OCCT] OCCT:Modeling Algorithmspublic2020-06-22 09:412020-06-22 09:41
Reportersnn 
Assigned Tomsv 
PrioritynormalSeverityminor 
StatusnewResolutionopen 
PlatformOSOS Version
Product Version 
Target Version[OCCT] 7.5.0*Fixed in Version 
Summary0031623: BRepExtrema_DistShapeShape crashes at distance computing
DescriptionThe crash takes place in Extrema_ExtCC::PrepareResults.
In the code below is expected that ExtPCir has at least one extrema, but it is really 0.
        Extrema_ExtPElC ExtPCir(aPCirc2,
                                Extrema_CurveTool::Circle(((Adaptor3d_Curve) myC[0])),
                                Precision::Confusion(), theUt11, theUt12);
        Standard_Real aMinSqD = ExtPCir.SquareDistance(1);

I failed to reproduce the issue on a smaller model with extracted parts of interest only.
Steps To Reproduce1. Open model \\master\projects\DMU_Reviewer\test_files\Engine V Twin Revision 02.xbf
2. Select parts as it is shown in the attached picture
3. Call BRepExtrema_DistShapeShape for the selected shapes
TagsNo tags attached.
Test case number
Attached Filespng file icon Parts_to_select.PNG (336,008 bytes) 2020-06-22 09:41

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- Issue History
Date Modified Username Field Change
2020-06-22 09:41 snn New Issue
2020-06-22 09:41 snn Assigned To => msv
2020-06-22 09:41 snn File Added: Parts_to_select.PNG


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