#### View Issue Details

ID Project Category View Status Date Submitted Last Update 0031835 Community OCCT:Modeling Algorithms public 2020-10-10 13:09 2020-12-02 17:13 Vico Liang bugmaster normal block closed fixed 7.5.0 7.5.0 7.5.0 0031835: Modeling Algorithms - step by step Boolean common produces bad shape on given three cylinders There are three cylinders with same size which are perpendicular with each other. 1. Load the given file three_cylinder.brep there are three cylinders: cylinder1, cylinder2, cylinder3. 2. do boolean common with any two shapes: common1 = cylinder1 x cylinder2 3. do bollean common between common1 and cylinder3. The final shape is bad from the result view. It maybe a modeling problem or meshing problem. Test environment is occt 7.5.0 beta. It works well in occt 7.4.0. ```pload MODELING VISUALIZATION # OK #plane p1 0 0 -200 0 0 1 #plane p2 -200 0 0 1 0 0 #plane p3 0 -200 0 0 1 0 #pcylinder c_1 p1 100 400 #pcylinder c_2 p2 100 400 #pcylinder c_3 p3 100 400 # OK pcylinder c_1 100 400 ttranslate c_1 0 0 -200 pcylinder c_2 100 400 trotate c_2 0 0 0 1 0 0 90 ttranslate c_2 0 200 0 pcylinder c_3 100 400 trotate c_3 0 0 0 0 1 0 90 ttranslate c_3 -200 0 0 # KO #restore three_cylinder.brep c #explode c So # KO plane p1 -200 2.22044604925033e-14 12.6935294289015 1 -1.11022302462516e-16 0 pcylinder c_1 p1 100 400 plane p2 0 0 -187.306470571099 0 0 1 pcylinder c_2 p2 100 400 plane p3 0 200 12.6935294289015 0 -1 1.11022302462516e-16 pcylinder c_3 p3 100 400 bcommon r12 c_2 c_1 bcommon r123 r12 c_3 incmesh r123 0.1 vclear vinit View1 vdefaults -autotriang 0 vdisplay -dispMode 1 r123 ``` No tags attached. bugs/modalg_7/bug31835_1,bug31835_2

#### Attached Files

 three_cylinder.brep (17,130 bytes) three-cylinder.jpg (54,536 bytes) two-cylinder-common.jpg (51,684 bytes) three-cylinder-common.jpg (43,786 bytes) Clipboard01.png (42,795 bytes) Clipboard02.jpg (21,660 bytes)

#### Activities

 2020-10-10 13:09 developer three_cylinder.brep (17,130 bytes) 2020-10-10 13:10 developer three-cylinder.jpg (54,536 bytes) 2020-10-10 13:10 developer two-cylinder-common.jpg (51,684 bytes) 2020-10-10 13:10 developer three-cylinder-common.jpg (43,786 bytes) msv 2020-10-12 09:30 developer   ~0095882 Dear Vico, I checked this test on OCCT 7.4.0. It works the same as in 7.5.0beta. Here is the draw script: ```restore three_cylinder.brep a explode a bcommon r1 a_1 a_2 puts [checkshape r1] bcommon r r1 a_3 puts [checkshape r] incmesh r 0.1 tricheck r ``` Here is the output: ```This shape seems to be valid This shape seems to be valid cross face errors: {face1, node1, face2, node2, distance} {6 1 12 1 132.74946253594433} {7 1 12 1 106.25607663447413} {7 4 12 4 132.74946253594433} {10 1 12 1 106.25607663447413} free nodes (in pairs: face / node): {12 2} {12 3} {12 4} {12 5} {12 6} {12 7} {12 8} {12 9} {12 10} {12 11} {12 12} {12 13} {12 14} {12 15} {12 16} {12 17} {12 18} {12 19} {12 20} {12 21} {12 22} {12 23} {12 24} {12 25} {12 26} {12 27} {12 28} {12 29} {12 30} {12 31} {12 32} {12 33} {12 34} {12 35} {12 36} Free_links 0 Cross_face_errors 4 Async_edges 0 Free_nodes 35 Small triangles 0 ``` So, it is not a regression issue. msv 2020-10-12 09:36 developer   ~0095883 The script gives no error in the version 7.3.0. However, the visual look of the result is incorrect, too. See the picture Clipboard01.png. msv 2020-10-12 09:36 developer Clipboard01.png (42,795 bytes) 2020-10-12 15:21 developer   ~0095888 The visual look of the result is correct in version 7.4.0, but incorrect in 7.5.0 beta. anyway, this is a bug, right? msv 2020-10-12 15:28 developer   ~0095889 Yes, this is a bug. But on my computer (win64, msvc 2015) the bug is the same on 7.4.0. If it was a regression it would require its urgent fix before issuing the release 7.5.0. msv 2020-10-12 15:31 developer Clipboard02.jpg (21,660 bytes) msv 2020-10-12 15:32 developer   ~0095890 I have attached the picture Clipboard02.png with the visual result on 7.4.0. msv 2020-10-13 09:46 developer   ~0095916 Dear Vico, on which platform it works well on 7.4.0? 2020-10-13 11:10 developer   ~0095923 Dear msv, I'm running on my desktop with msvc 2017. msv 2020-10-13 12:20 developer   ~0095926 Could you provide the extract of code that calls the operation? 2020-10-13 14:30 administrator   ~0095930 Branch CR31835 has been created by emv. SHA-1: f7dbcf7512e2a3f4220b433913f2f96581219e1b Detailed log of new commits: Author: emv Date: Tue Oct 13 14:31:27 2020 +0300     0031835: Modeling Algorithms - step by step Boolean common produces bad shape on given three cylinders          Fix inconsistency between IntAna_QuadQuadGeo(gp_Cylinder,gp_Cylinder) and AxeOperator::Coplanar(). emv 2020-10-13 14:35 developer   ~0095931 I've checked the result in OCCT 7.4.0 built with VS2017, it is similar to the one built with OCCT 7.5.0_beta. The case is not a regression. 2020-10-13 14:59 administrator   ~0095933 Branch CR31835 has been updated forcibly by emv. SHA-1: c5779392f6d3138fa443695fd99cf4590b30b6a4 2020-10-13 17:30 developer   ~0095940 Code snippet:     BRepAlgoAPI_Common aCommonAlgoAPI;     aCommonAlgoAPI.SetArguments(aArgumentShapes);     aCommonAlgoAPI.SetTools(aToolShapes);     aCommonAlgoAPI.SetFuzzyValue(1e-6);     aCommonAlgoAPI.SetRunParallel(Standard_True);     aCommonAlgoAPI.SetNonDestructive(Standard_True);     aCommonAlgoAPI.SetToFillHistory(Standard_False);     aCommonAlgoAPI.Build(); 2020-10-13 21:35 administrator   ~0095945 Branch CR31835 has been updated forcibly by emv. SHA-1: df4f95f132b3192eef399285f93b97b4a2044915 emv 2020-10-14 09:29 developer   ~0095949 Dear Mikhail, could you please review the git branch CR31835? Test results - http://jenkins-test-12.nnov.opencascade.com/view/CR31835-master-emv/view/COMPARE/ msv 2020-10-14 10:48 developer   ~0095954 For integration: occt - CR31835 products - none 2020-10-17 13:22 administrator   ~0096033 Combination - OCCT branch : IR-2020-10-16 master SHA - ae9f4b64cacf0df612944b3694a3bdfa5f1f29cf a206de37fbfa0bf71bd534ae47192bbec23b8522 Products branch : IR-2020-10-16 SHA - fcb5abe005e152f7f923f4cf6c02acb07c027cdc 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 CPU differences: Debian80-64: OCCT Total CPU difference: 18027.820000000127 / 18057.130000000117 [-0.16%] Products Total CPU difference: 12174.330000000093 / 12182.170000000115 [-0.06%] Windows-64-VC14: OCCT Total CPU difference: 19740.03125 / 19746.828125 [-0.03%] Products Total CPU difference: 13564.71875 / 13586.625 [-0.16%] Image differences : No differences that require special attention Memory differences : No differences that require special attention 2020-10-24 12:41 administrator   ~0096225 Branch CR31835 has been deleted by inv. SHA-1: df4f95f132b3192eef399285f93b97b4a2044915

#### Related Changesets

 occt: master 135c2bd9 2020-10-13 11:31:27 emv Committer: bugmaster 0031835: Modeling Algorithms - step by step Boolean common produces bad shape on given three cylinders Fix inconsistency between IntAna_QuadQuadGeo(gp_Cylinder,gp_Cylinder) and AxeOperator::Coplanar(). Affected Issues0031835 mod - src/IntAna/IntAna_QuadQuadGeo.cxx add - tests/bugs/modalg_7/bug31835_1 add - tests/bugs/modalg_7/bug31835_2

#### Issue History

Date Modified Username Field Change
2020-10-10 13:09 Vico Liang New Issue
2020-10-10 13:09 Vico Liang Assigned To => msv
2020-10-10 13:09 Vico Liang File Added: three_cylinder.brep
2020-10-10 13:10 Vico Liang File Added: three-cylinder.jpg
2020-10-10 13:10 Vico Liang File Added: two-cylinder-common.jpg
2020-10-10 13:10 Vico Liang File Added: three-cylinder-common.jpg
2020-10-10 13:13 Vico Liang Description Updated
2020-10-12 03:53 Vico Liang Severity minor => block
2020-10-12 03:53 Vico Liang Target Version 7.6.0 => 7.5.0
2020-10-12 03:53 Vico Liang Summary step by step boolean common produces bad shape on given three cylinders => regression issue: step by step boolean common produces bad shape on given three cylinders
2020-10-12 03:53 Vico Liang Description Updated
2020-10-12 09:30 msv Note Added: 0095882
2020-10-12 09:36 msv Note Added: 0095883
2020-10-12 09:36 msv File Added: Clipboard01.png
2020-10-12 15:21 Vico Liang Note Added: 0095888
2020-10-12 15:28 msv Note Added: 0095889
2020-10-12 15:31 msv File Added: Clipboard02.jpg
2020-10-12 15:32 msv Note Added: 0095890
2020-10-12 17:20 kgv Summary regression issue: step by step boolean common produces bad shape on given three cylinders => [REGRESSION] Modeling Algorithms - step by step Boolean common produces bad shape on given three cylinders
2020-10-12 17:41 kgv Steps to Reproduce Updated
2020-10-12 17:42 kgv Steps to Reproduce Updated
2020-10-13 09:46 msv Note Added: 0095916
2020-10-13 09:47 msv Assigned To msv => emv
2020-10-13 09:47 msv Status new => assigned
2020-10-13 11:10 Vico Liang Note Added: 0095923
2020-10-13 12:20 msv Note Added: 0095926
2020-10-13 14:30 git Note Added: 0095930
2020-10-13 14:35 emv Note Added: 0095931
2020-10-13 14:35 emv Summary [REGRESSION] Modeling Algorithms - step by step Boolean common produces bad shape on given three cylinders => Modeling Algorithms - step by step Boolean common produces bad shape on given three cylinders
2020-10-13 14:35 emv Steps to Reproduce Updated
2020-10-13 14:59 git Note Added: 0095933
2020-10-13 17:30 Vico Liang Note Added: 0095940
2020-10-13 21:35 git Note Added: 0095945
2020-10-14 09:29 emv Note Added: 0095949
2020-10-14 09:29 emv Assigned To emv => msv
2020-10-14 09:29 emv Status assigned => resolved
2020-10-14 10:48 msv Note Added: 0095954
2020-10-14 10:48 msv Assigned To msv => bugmaster
2020-10-14 10:48 msv Status resolved => reviewed
2020-10-17 13:22 bugmaster Note Added: 0096033
2020-10-17 13:22 bugmaster Status reviewed => tested
2020-10-17 13:29 bugmaster Test case number => bugs/modalg_7/bug31835_1,bug31835_2
2020-10-17 13:31 bugmaster Changeset attached => occt master 135c2bd9
2020-10-17 13:31 bugmaster Status tested => verified
2020-10-17 13:31 bugmaster Resolution open => fixed
2020-10-24 12:41 git Note Added: 0096225
2020-12-02 16:22 emo Fixed in Version => 7.5.0
2020-12-02 17:13 emo Status verified => closed