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IDProjectCategoryView StatusDate SubmittedLast Update
0028719CommunityOCCT:Meshpublic2017-05-07 16:562018-12-03 10:38
ReporterVico Liang Assigned Toapn  
PrioritynormalSeverityminor 
Status closedResolutionfixed 
Target Version7.4.0Fixed in Version7.4.0 
Summary0028719: Mesh - Display issue for special model
Descriptionmodel display_issue.brep have display issue. There are severial white grids area which should not be there for a valid model.
Steps To Reproducebugs mesh bug28719
TagsNo tags attached.
Test case numberbugs mesh bug28719

Attached Files

  • display_issue.brep (9,632,121 bytes)
  • display_issue.jpg (76,991 bytes)

Activities

Vico Liang

2017-05-07 16:56

developer  

display_issue.brep (9,632,121 bytes)

Vico Liang

2017-05-07 16:59

developer  

display_issue.jpg (76,991 bytes)

Vico Liang

2017-05-07 17:01

developer   ~0065791

It might be meshing algorithm issue, i'm not sure though.

kgv

2017-05-07 17:48

developer   ~0065792

Last edited: 2017-05-07 17:50

 This is not grid area - these are isolines drawn in place of Faces without triangulation.
Thus, most likely BRepMesh has failed on them.

I bet you get this model using some BOP producing very narrow faces in some places?

Vico Liang

2017-05-08 04:58

developer   ~0065793

Dear kgv,
You're right. This model has narrow faces which is produced by BOP. I ever see this issue when importing model from STEP/IGES generated by other CAD software.

apv

2017-08-29 13:05

tester   ~0070041

Problem described in issue is reproduced on current state of OCCT.

oan

2018-11-02 18:30

developer   ~0080660

Please check on current master.

nbv

2018-11-06 16:26

developer   ~0080767

The problem is still actual.

The test case "bugs mesh bug28719" has already been created.

git

2018-11-16 14:05

administrator   ~0081120

Branch CR28719 has been created by oan.

SHA-1: 38fc1e3c621e4230b241c0a79a209998f0266b44


Detailed log of new commits:

Author: oan
Date: Fri Nov 16 14:03:51 2018 +0300

    0028719: Mesh - Display issue for special model
    
    Clean existing triangulation before meshing.

oan

2018-11-16 14:08

developer   ~0081121

Actually, no, it is not actual for current master.
Test case "bugs mesh bug28719" does not clean existing triangulation before display, so BRepMesh functionality is not called properly.

Test case has been updated.

Please review and close.

oan

2018-11-16 15:35

developer   ~0081125

Test resuls:

http://occt-tests/CR28719-master-OAN-OCCT/Debian80-64/summary.html
http://occt-tests/CR28719-master-OAN-OCCT/Windows-64-VC14/diff_summary.html

msv

2018-11-30 13:50

developer   ~0081308

Reviewed.

apn

2018-11-30 14:18

administrator   ~0081309

bugs mesh bug28719 - OK

git

2018-12-03 10:38

administrator   ~0081335

Branch CR28719 has been deleted by inv.

SHA-1: 38fc1e3c621e4230b241c0a79a209998f0266b44

Related Changesets

occt: master 87036bbb

2018-11-16 11:03:51

oan


Committer: apn Details Diff		 0028719: Mesh - Display issue for special model

Clean existing triangulation before meshing.		 Affected Issues
0028719
mod - tests/bugs/mesh/bug28719 Diff File

Issue History

Date Modified Username Field Change
2017-05-07 16:56 Vico Liang New Issue
2017-05-07 16:56 Vico Liang Assigned To => kgv
2017-05-07 16:56 Vico Liang File Added: display_issue.brep
2017-05-07 16:59 Vico Liang File Added: display_issue.jpg
2017-05-07 17:01 Vico Liang Note Added: 0065791
2017-05-07 17:48 kgv Note Added: 0065792
2017-05-07 17:48 kgv Note Edited: 0065792
2017-05-07 17:49 kgv Note Edited: 0065792
2017-05-07 17:49 kgv Assigned To kgv => msv
2017-05-07 17:49 kgv Category OCCT:Visualization => OCCT:Mesh
2017-05-07 17:50 kgv Note Edited: 0065792
2017-05-08 04:58 Vico Liang Note Added: 0065793
2017-07-20 12:43 oan Target Version 7.2.0 => 7.3.0
2017-08-29 13:05 apv Test case number => bugs mesh bug28719
2017-08-29 13:05 apv Note Added: 0070041
2017-08-29 13:36 kgv Summary Display issue for special model => Mesh - Display issue for special model
2018-02-25 21:14 abv Target Version 7.3.0 => 7.4.0
2018-11-02 18:30 oan Note Added: 0080660
2018-11-02 18:30 oan Assigned To msv => bugmaster
2018-11-02 18:30 oan Status new => feedback
2018-11-06 16:26 nbv Note Added: 0080767
2018-11-06 16:27 nbv Assigned To bugmaster => msv
2018-11-06 16:57 msv Assigned To msv => oan
2018-11-06 16:57 msv Status feedback => assigned
2018-11-16 14:05 git Note Added: 0081120
2018-11-16 14:08 oan Note Added: 0081121
2018-11-16 14:08 oan Assigned To oan => msv
2018-11-16 14:08 oan Status assigned => resolved
2018-11-16 14:08 oan Steps to Reproduce Updated
2018-11-16 15:35 oan Note Added: 0081125
2018-11-30 11:56 oan Assigned To msv => pdn
2018-11-30 13:50 msv Note Added: 0081308
2018-11-30 13:50 msv Assigned To pdn => bugmaster
2018-11-30 13:50 msv Status resolved => reviewed
2018-11-30 14:18 apn Note Added: 0081309
2018-11-30 14:18 apn Status reviewed => tested
2018-12-02 14:48 apn Changeset attached => occt master 87036bbb
2018-12-02 14:48 apn Assigned To bugmaster => apn
2018-12-02 14:48 apn Status tested => verified
2018-12-02 14:48 apn Resolution open => fixed
2018-12-03 10:38 git Note Added: 0081335