View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0030947 | Open CASCADE | OCCT:Modeling Algorithms | public | 2019-09-06 07:42 | 2022-10-24 10:41 |
| Reporter | Assigned To | ||||
| Priority | normal | Severity | minor | ||
| Status | feedback | Resolution | open | ||
| Product Version | 7.3.0 | ||||
| Target Version | 7.8.0 | ||||
| Summary | 0030947: Modeling Algorithms, BRepClass_FaceClassifier - Incorrect classification of the point | ||||
| Description | Geometrical (precise) classifier returns ON status for the point which is clearly OUT of the face. It happens due to usage of unreasonable big tolerance (1.e-5) for intersection of the classification ray with the edges of the face. | ||||
| Steps To Reproduce | restore [locate_data_file bug30880_face.brep] f point p2d -0.0034857302428251678 0.016350559703980902 if {![regexp "OUT" [b2dclassify f p2d -tol 1.e-7]]} { puts "Error: Incorrect classification of the point" } | ||||
| Tags | No tags attached. | ||||
| Test case number | |||||
| related to | 0029421 | feedback | Open CASCADE | Make face classifier algorithm stable and robust |
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Branch CR30947 has been created by emv. SHA-1: d7fe70f95c09ae74e820e35505c0c980fc4ba72f Detailed log of new commits: Author: emv Date: Wed Sep 4 16:25:49 2019 +0300 Provide possibility to check the ON status of the point for the face using the real tolerances of the sub-shapes of the face. Author: emv Date: Thu Aug 22 13:54:53 2019 +0300 0030880: Bug in BRepExtrema_ExtCF Correct tolerance management during intersection of the classification ray with edges of the face. |
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The attempt to use the correct tolerance for intersection (first commit) leads to a few regressions in iges and step readers due to undetected ON status. Attempt to fix these regressions by checking the ON status in 3D using the real tolerances of the sub-shapes of the face (second commit) fixes some of the initial regressions, but introduces more new ones. |
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Please use the command "b2dclassify f p2d 1.e-7 1" in your point status check. 1 - use of Bnd_Box in point classification. |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2019-09-06 07:42 |
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New Issue | |
| 2019-09-06 07:42 |
|
Assigned To | => msv |
| 2019-09-06 07:43 |
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Relationship added | related to 0029421 |
| 2019-09-06 07:57 | git | Note Added: 0086828 | |
| 2019-09-06 08:01 |
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Note Added: 0086829 | |
| 2020-09-14 23:12 |
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Target Version | 7.5.0 => 7.6.0 |
| 2021-08-19 12:54 |
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Assigned To | msv => abulychev-ext |
| 2021-08-29 20:01 |
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Target Version | 7.6.0 => 7.7.0 |
| 2021-09-02 19:43 |
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Note Added: 0103693 | |
| 2021-09-02 19:44 |
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Assigned To | abulychev-ext => ifv |
| 2021-09-02 19:44 |
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Status | new => feedback |
| 2022-10-24 10:41 |
|
Target Version | 7.7.0 => 7.8.0 |
