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IDProjectCategoryView StatusDate SubmittedLast Update
0031623Open CASCADEOCCT:Modeling Algorithmspublic2020-06-22 09:412021-09-03 13:38
Reportersnn Assigned Tobugmaster  
PrioritynormalSeverityminor 
Status closedResolutionunable to reproduce 
Product Version7.4.0 
Target Version7.6.0Fixed in Version7.4.0 
Summary0031623: Modeling Algorithms - 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 Files

  • Parts_to_select_1.PNG (322,280 bytes)
  • Engine V Twin Revision 02 - 2tubes.STEP (46,086 bytes)

Activities

snn

2020-09-15 12:21

reporter  

Parts_to_select_1.PNG (322,280 bytes)

snn

2021-03-16 12:40

reporter  

Engine V Twin Revision 02 - 2tubes.STEP (46,086 bytes)

ifv

2021-03-18 16:23

developer   ~0099583

Analysis

ifv

2021-03-22 17:14

developer   ~0099653

Debugging

ifv

2021-03-25 16:25

developer   ~0099739

Debugging

ifv

2021-03-25 16:32

developer   ~0099740

Bug is not reproducible on OCCT 7.4.0 and current master.
Analysis is done with help of Draw commands:
XOpen - for reading *.xbf file
XGetOneShape and XGetFreeShapes - to get shapes from document
distmini - to call BRepExtrema_DistShapeShape

kgv

2021-03-25 17:00

developer   ~0099741

Last edited: 2021-03-25 17:00

 > Bug is not reproducible on OCCT 7.4.0
It doesn't look like the bug being reported for some older OCCT version.

Dear Sergey, please specify OCCT version with the bug ("Product Version") / provide more details for reproducing.

snn

2021-04-13 15:04

reporter   ~0100281

This bug is not reproduced in the target application (DMU Reviewer) after moving to OCCT 7.5.1.

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
2020-09-15 11:54 msv Assigned To msv => szy
2020-09-15 11:54 msv Target Version 7.5.0 => 7.6.0
2020-09-15 11:58 msv Summary BRepExtrema_DistShapeShape crashes at distance computing => Modeling Algorithms - BRepExtrema_DistShapeShape crashes at distance computing
2020-09-15 12:21 snn File Added: Parts_to_select_1.PNG
2020-09-15 12:23 msv File Deleted: Parts_to_select.PNG
2020-12-28 14:40 szy Assigned To szy => aavtamon
2021-03-16 12:40 snn File Added: Engine V Twin Revision 02 - 2tubes.STEP
2021-03-18 16:23 ifv Note Added: 0099583
2021-03-22 17:14 ifv Note Added: 0099653
2021-03-25 16:25 ifv Note Added: 0099739
2021-03-25 16:32 ifv Note Added: 0099740
2021-03-25 16:32 ifv Assigned To aavtamon => szy
2021-03-25 16:32 ifv Status new => resolved
2021-03-25 17:00 kgv Note Added: 0099741
2021-03-25 17:00 kgv Assigned To szy => snn
2021-03-25 17:00 kgv Status resolved => feedback
2021-03-25 17:00 kgv Note Edited: 0099741
2021-03-25 17:01 kgv Resolution open => unable to reproduce
2021-03-25 17:01 kgv Product Version => 7.4.0
2021-04-13 15:04 snn Note Added: 0100281
2021-07-29 11:59 snn Status feedback => resolved
2021-07-29 12:02 kgv Assigned To snn => bugmaster
2021-07-29 12:02 kgv Status resolved => feedback
2021-09-03 13:37 bugmaster Status feedback => closed
2021-09-03 13:37 bugmaster Fixed in Version => 7.5.1
2021-09-03 13:38 bugmaster Fixed in Version 7.5.1 => 7.4.0