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| ID | Project | Category | View Status | Date Submitted | Last Update | ||||||||
| 0025915 | Open CASCADE | [OCCT] OCCT:Modeling Algorithms | public | 2015-03-11 16:51 | 2020-09-14 22:56 | ||||||||
| Reporter | apn | ||||||||||||
| Assigned To | msv | ||||||||||||
| Priority | normal | Severity | minor | ||||||||||
| Status | new | Resolution | open | ||||||||||
| Platform | A | OS | L | OS Version | L | ||||||||
| Product Version | |||||||||||||
| Target Version | [OCCT] 7.6.0* | Fixed in Version | |||||||||||
| Summary | 0025915: Incorrect result of Boolean cut operation | ||||||||||||
| Description | BRepAlgo_Cut makes incorrect result in test case bugs/modalg_4/bug825 and bug825_2. bugs/modalg_4/bug825_2. The result must be half-sphere. However, full sphere with a scar is found (see bug825_2.PNG). bugs/modalg_4/bug825. Draw[]> OCC825 a1 a2 a3 res1 res2 0 res1 seems to be valid. res2 is an empty compound. | ||||||||||||
| Steps To Reproduce | use command OCC825 with last parameter 0 (BRepAlgoAPI/BRepAlgo = 1/0) | ||||||||||||
| Tags | No tags attached. | ||||||||||||
| Test case number | bugs modalg_4 bug825 bug825_1 bug825_2 | ||||||||||||
| Attached Files |  bug825_2.PNG (21,593 bytes) 2016-02-24 12:18 | ||||||||||||
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(0051077) nbv (developer) 2016-02-24 12:04 |
Additional remarks. There is a jump of Walking line in neighborhood of sphere pole. Result of Dump is following (2d-coordinates on the sphere only): ----------- D u m p I n t P a t c h _ W L i n e -(begin)------ Num [U2 V2] ... 572 [+3.14159265358979310000 +1.56151422368963820000] 573 [+3.14159265358979310000 +1.56551437467481460000] 574 [+3.14159265358979310000 +1.56951440913947840000] 575 [+6.28318530717958620000 +1.56807826249686810000] Point 574 and 575 (U=pi ==> U=2*pi). V goes through the sphere pole. However, it is not processed. |
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(0051078) nbv (developer) 2016-02-24 12:13 |
After the fix to the issue #27190: 1. Jumping of Walking line (see 0025915:0051077) is absent. 2. The result in bugs/modalg_4/bug825_2 test case is half-sphere ==> IMPROVEMENT, however, Boolean operation loses both degenerated edge of the sphere. I.e. new result is not-closed shape. 3. bugs/modalg_4/bug825. res1 contains Not-closed face (as in item 2), res2 is an empty compound as before. |
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(0069246) mkv (tester) 2017-08-09 14:57 |
Problem described in issue is reproduced on current state of OCCT. |
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Issue History |
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| Date Modified | Username | Field | Change |
| 2015-03-11 16:51 | apn | New Issue | |
| 2015-03-11 16:51 | apn | Assigned To | => msv |
| 2015-03-11 16:52 | apn | Test case number | => bugs modalg_4 bug825 bug825_1 bug825_2 |
| 2015-04-17 00:02 | abv | Target Version | 6.9.0 => 7.1.0 |
| 2016-02-24 11:57 | nbv | Summary | BRepAlgo_Cut makes empty compound on sphere and b-spline face => Incorrect result of Boolean cut operation |
| 2016-02-24 11:57 | nbv | Description Updated | View Revisions |
| 2016-02-24 12:04 | nbv | Note Added: 0051077 | |
| 2016-02-24 12:13 | nbv | Note Added: 0051078 | |
| 2016-02-24 12:18 | nbv | File Added: bug825_2.PNG | |
| 2016-02-24 12:20 | abv | Relationship added | related to 0027190 |
| 2016-10-28 17:03 | msv | Target Version | 7.1.0 => 7.2.0 |
| 2017-07-24 09:32 | msv | Target Version | 7.2.0 => 7.3.0 |
| 2017-08-09 14:57 | mkv | Note Added: 0069246 | |
| 2017-12-05 17:00 | msv | Target Version | 7.3.0 => 7.4.0 |
| 2019-08-12 16:43 | msv | Target Version | 7.4.0 => 7.5.0 |
| 2020-09-14 22:56 | msv | Target Version | 7.5.0 => 7.6.0* |
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Issue History |
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