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IDProjectCategoryView StatusDate SubmittedLast Update
0030389Open CASCADE[OCCT] OCCT:Data Exchangepublic2018-11-29 10:072019-03-02 23:38
Reporteremv 
Assigned Toapn 
PrioritynormalSeverityminor 
StatusclosedResolutionfixed 
PlatformOSOS Version
Product Version[OCCT] 7.3.0 
Target Version[OCCT] 7.4.0Fixed in Version[OCCT] 7.4.0 
Summary0030389: Data Exchange - StlAPI_Writer does not check if the face has triangulation
DescriptionStlAPI_Writer does not check if the face has triangulation. It leads to crash on the partially meshed models.
Steps To Reproducebox b 1 1 1
# mesh only 5 faces of the box
eval compound [lrange [explode b f] 1 5] cf
incmesh cf 0.1
# write stl
writestl b box.stl
An exception was caught 000002506CC223E0 : OSD_Exception_ACCESS_VIOLATION: ACCESS VIOLATION at address 0x0000000000000018 during 'READ' operation
** Exception ** 000002506CC223E0 : OSD_Exception_ACCESS_VIOLATION: ACCESS VIOLATION at address 0x0000000000000018 during 'READ' operation
TagsNo tags attached.
Test case numberbugs stlvrml bug30389
Attached Files

- Relationships
has duplicate 0030224closedbugmaster Community StlAPI_Writer crashes on STEP converted file 

-  Notes
(0081283)
git (administrator)
2018-11-29 10:24

 Branch CR30389 has been created by emv.

SHA-1: 443a47c28a05cf5213374d610348dd476db9e28f


Detailed log of new commits:

Author: emv
Date: Thu Nov 29 10:20:23 2018 +0300

    0030389: Data Exchange - StlAPI_Writer does not check if the face has triangulation
    
    When merging triangulation of the faces skip those having no triangulation.
    Test case for the issue.
(0081285)
kgv (developer)
2018-11-29 11:24

 
  59   // create temporary triangulation
  60   Handle(Poly_Triangulation) aMesh = new Poly_Triangulation (aNbNodes, aNbTriangles, Standard_False);

Could you please also put here a check that aNbTriangles > 0 and return FALSE otherwise (for the case if TopoDS_Shape does not contain triangulation at all)?

It might be useful also emitting a warning (e.g. using Message::DefaultMessenger()) with the number of Faces skipped due to NULL triangulation.
(0081290)
emv (developer)
2018-11-29 12:47

 Dear Galina, could you please review the git branch CR30389?

Test results - http://vm-jenkins-test-12.nnov.opencascade.com:8080/view/CR30389-master-emv/view/COMPARE/ [^]
(0081291)
emv (developer)
2018-11-29 12:50
edited on: 2018-11-29 12:51

 I didn't see the message 0030389:0081290, so I will make the asked changes.
(0081294)
git (administrator)
2018-11-29 14:21

 Branch CR30389 has been updated forcibly by emv.

SHA-1: 454bb0011c1918d6d6a79e81cb22de61f26830dd
(0081301)
emv (developer)
2018-11-30 09:00

 Dear Galina, could you please review the git branch CR30389?

Test results - http://vm-jenkins-test-12.nnov.opencascade.com:8080/view/CR30389-master-emv/view/COMPARE/ [^]
(0081302)
gka (developer)
2018-11-30 10:47

 Branch CR30389 was reviewed
(0081305)
apn (administrator)
2018-11-30 11:37

 Combination -
OCCT branch : CR30389 SHA - 454bb0011c1918d6d6a79e81cb22de61f26830dd
Products branch : master SHA - 4db2d6888701347b5f5ac616d0a78b5a228964c8
was compiled on Linux, MacOS and Windows platforms and tested in optimize mode.

Number of compiler warnings:
No new/fixed warnings

Regressions/Differences/Improvements:
No regressions/differences

Test case:
bugs stlvrml bug30389 - OK

CPU differences:
Debian80-64:
OCCT
Total CPU difference: 16306.540000000025 / 16298.960000000045 [+0.05%]
Products
Total CPU difference: 7073.8900000000385 / 7051.820000000017 [+0.31%]
Windows-64-VC14:
OCCT
Total CPU difference: 17805.875 / 17763.703125 [+0.24%]
Products
Total CPU difference: 8518.984375 / 8526.890625 [-0.09%]

Image differences :
No differences that require special attention

Memory differences :
No differences that require special attention
(0081329)
git (administrator)
2018-12-03 10:38

 Branch CR30389 has been deleted by inv.

SHA-1: 454bb0011c1918d6d6a79e81cb22de61f26830dd

- Related Changesets
occt: master 44d5a096
Timestamp: 2018-11-29 07:20:23
Author: emv
Committer: apn
[ Details ] [ Diff ] 		0030389: Data Exchange - StlAPI_Writer does not check if the face has triangulation

When merging triangulation of the faces skip those having no triangulation.
Test case for the issue.
mod - src/StlAPI/StlAPI_Writer.cxx [ Diff ] [ File ]
add - tests/bugs/stlvrml/bug30389 [ Diff ] [ File ]

- Issue History
Date Modified Username Field Change
2018-11-29 10:07 emv New Issue
2018-11-29 10:07 emv Assigned To => gka
2018-11-29 10:08 emv Assigned To gka => emv
2018-11-29 10:08 emv Status new => assigned
2018-11-29 10:24 git Note Added: 0081283
2018-11-29 11:24 kgv Note Added: 0081285
2018-11-29 12:47 emv Note Added: 0081290
2018-11-29 12:47 emv Assigned To emv => gka
2018-11-29 12:47 emv Status assigned => resolved
2018-11-29 12:50 emv Note Added: 0081291
2018-11-29 12:50 emv Assigned To gka => emv
2018-11-29 12:50 emv Status resolved => assigned
2018-11-29 12:50 emv Note Edited: 0081291 View Revisions
2018-11-29 12:51 emv Note Edited: 0081291 View Revisions
2018-11-29 14:21 git Note Added: 0081294
2018-11-30 09:00 emv Note Added: 0081301
2018-11-30 09:00 emv Assigned To emv => gka
2018-11-30 09:00 emv Status assigned => resolved
2018-11-30 10:47 gka Note Added: 0081302
2018-11-30 10:47 gka Assigned To gka => bugmaster
2018-11-30 10:47 gka Status resolved => reviewed
2018-11-30 11:37 apn Test case number => bugs stlvrml bug30389
2018-11-30 11:37 apn Note Added: 0081305
2018-11-30 11:37 apn Status reviewed => tested
2018-12-02 14:48 apn Changeset attached => occt master 44d5a096
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: 0081329
2019-03-02 23:38 kgv Relationship added has duplicate 0030224

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