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IDProjectCategoryView StatusDate SubmittedLast Update
0027845Open CASCADEOCCT:Meshpublic2016-09-06 17:412018-11-11 12:01
ReporterssvAssigned Tobugmaster  
PrioritynormalSeverityminor 
Status closedResolutionfixed 
PlatformWindowsOSVC++ 2013 
Target Version7.4.0Fixed in Version7.4.0 
Summary0027845: BRepMesh produces invalid result on spline cavity
DescriptionOn the attached CAD model, our faceter (BRepMesh) gives invalid result for the following deflection values:

- linear deflection: 10
- angular deflection: 10
Steps To Reproducerestore onshape_box_with_cavities.brep a
tclean a
incmesh a 10 -a 180

vinit
vdefaults -autoTriang 0
vdisplay a
vfit
vsetdispmode 1
TagsNo tags attached.
Test case numberbugs/mesh/bug27845

Attached Files

  • onshape_box_with_cavities.brep (1,535,023 bytes)
  • brepmesh_problem.png (50,521 bytes)
  • brepmesh_finer_parameters.png (51,951 bytes)

Relationships

duplicate of 0025061 newoan BRepMesh should skip internal wires with self intersections to produce mesh for the shape anyway 
related to 0026106 closedbugmaster BRepMesh - revision of data model 

Activities

ssv

2016-09-06 17:41

developer  

onshape_box_with_cavities.brep (1,535,023 bytes)

ssv

2016-09-06 17:44

developer  

brepmesh_problem.png (50,521 bytes)

ssv

2016-09-06 17:44

developer  

brepmesh_finer_parameters.png (51,951 bytes)

oan

2016-09-06 18:55

developer   ~0057531

Such behaviour is possible due to rough discretization of internal wire degenerated to two points which complicates classification of triangles as internal/external. Current implementation of algorithm does not support explicit separation between inner/outer discrete wires thus implementation of such feature using current structure can lead to significant overhead.

oan

2017-08-11 12:55

developer   ~0069315

Fixed by 0026106.

bugmaster

2018-11-06 15:53

administrator   ~0080760

Please create testing case

nbv

2018-11-08 11:08

developer   ~0080922

Dear Mikhail,

Please review the branch CR27845.

Test results are here:
Windows: http://jenkins-test-12.nnov.opencascade.com/view/MeshTest-master_NBV/view/TESTING/job/MeshTest-master_NBV-OCCT-Windows-64-VC14-opt-test-restart/HTML_20Report/

Linux: http://jenkins-test-12.nnov.opencascade.com/view/MeshTest-master_NBV/view/TESTING/job/MeshTest-master_NBV-OCCT-Debian80-64-opt-test-restart/HTML_20Report/

git

2018-11-08 11:08

administrator   ~0080923

Branch CR27845 has been created by nbv.

SHA-1: f6184472542072e29299b91f497d3b2930ee0d55


Detailed log of new commits:

Author: nbv
Date: Thu Nov 8 10:39:21 2018 +0300

    0027845: BRepMesh produces invalid result on spline cavity
    
    Adding test case for the problem.
    The issue has been fixed by a patch for 0026106.

oan

2018-11-08 11:43

developer   ~0080927

Reviewed.

bugmaster

2018-11-08 13:48

administrator   ~0080945

Adding test case

git

2018-11-11 12:01

administrator   ~0081030

Branch CR27845 has been deleted by inv.

SHA-1: f6184472542072e29299b91f497d3b2930ee0d55

Related Changesets

occt: master 24f355f0

2018-11-08 07:39:21

nbv


Committer: bugmaster Details Diff		 0027845: BRepMesh produces invalid result on spline cavity

Adding test case for the problem.
The issue has been fixed by a patch for 0026106.		 Affected Issues
0027845
add - tests/bugs/mesh/bug27845 Diff File

Issue History

Date Modified Username Field Change
2016-09-06 17:41 ssv New Issue
2016-09-06 17:41 ssv Assigned To => oan
2016-09-06 17:41 ssv File Added: onshape_box_with_cavities.brep
2016-09-06 17:44 ssv File Added: brepmesh_problem.png
2016-09-06 17:44 ssv File Added: brepmesh_finer_parameters.png
2016-09-06 18:40 oan Relationship added duplicate of 0025061
2016-09-06 18:46 oan Steps to Reproduce Updated
2016-09-06 18:55 oan Note Added: 0057531
2016-09-06 18:55 oan Relationship added related to 0026106
2016-11-03 17:38 abv Target Version 7.1.0 => 7.2.0
2017-07-20 12:43 oan Target Version 7.2.0 => 7.3.0
2017-08-11 12:55 oan Note Added: 0069315
2018-02-25 21:14 abv Target Version 7.3.0 => 7.4.0
2018-11-02 15:35 nbv Steps to Reproduce Updated
2018-11-02 15:37 nbv Assigned To oan => bugmaster
2018-11-02 15:37 nbv Status new => feedback
2018-11-06 15:47 bugmaster Status feedback => verified
2018-11-06 15:47 bugmaster Resolution open => fixed
2018-11-06 15:53 bugmaster Status verified => closed
2018-11-06 15:53 bugmaster Note Added: 0080760
2018-11-06 15:53 bugmaster Status closed => assigned
2018-11-07 19:25 oan Assigned To bugmaster => nbv
2018-11-08 11:08 nbv Note Added: 0080922
2018-11-08 11:08 nbv Assigned To nbv => oan
2018-11-08 11:08 nbv Status assigned => resolved
2018-11-08 11:08 git Note Added: 0080923
2018-11-08 11:43 oan Assigned To oan => bugmaster
2018-11-08 11:43 oan Status resolved => reviewed
2018-11-08 11:43 oan Note Added: 0080927
2018-11-08 13:48 bugmaster Note Added: 0080945
2018-11-08 13:48 bugmaster Status reviewed => tested
2018-11-09 15:45 bugmaster Test case number => bugs/mesh/bug27845
2018-11-11 11:52 bugmaster Changeset attached => occt master 24f355f0
2018-11-11 11:52 bugmaster Status tested => verified
2018-11-11 12:01 git Note Added: 0081030