View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0033536 | Community | OCCT:Modeling Algorithms | public | 2023-11-24 01:42 | 2023-12-18 21:16 |
| Reporter | dsa-t | Assigned To | oan | ||
| Priority | normal | Severity | major | ||
| Status | new | Resolution | open | ||
| Platform | Windows | OS | VC++ 2022 | ||
| Product Version | 7.7.1 | ||||
| Summary | 0033536: BRepAlgoAPI_Cut produces broken shapes | ||||
| Description | We, in KiCad, are using BRepAlgoAPI_Cut to cut holes (mostly cylindrical) out of track segments and zone fills. Unfortunately, this operation produces bad shapes in some cases. Test cases and the test script is attached. Tested in versions 7.7.0 (Draw Harness), 7.7.2 (C++), and the latest commit 588ee924e4772389438621106d37144abb694b14 (Draw Harness, C++) | ||||
| Steps To Reproduce | 1. Extract cut_data.zip into cut_data directory 2. Put cut_test.tcl at the same level as the cut_data directory and draw.bat 3. Start draw.bat 4. Execute command: source cut_test.tcl The script will cut shapes using different fuzzy values (0 and 0.0005), check, attempt to fix the result, check the fixed shape. It also saves all outputs. Comments in the tcl script basically describe the encountered deficiencies: _mycheck "zones/zones_bad_1"; # Self-interfering (constructed with precision 0.001 mm) _mycheck "zones/zones_1"; # OK (constructed with default precision) _mycheck "tracks_nfuz/tracks_690"; # Bad, no warning after Cut _mycheck "tracks_nfuz/tracks_3866"; # Bad but OK for shape check _mycheck "tracks_fuz/tracks_363"; # Bad with fuzzy value _mycheck "tracks_fuz/tracks_873"; # Bad with fuzzy value _mycheck "tracks_fuz/tracks_3085"; # Bad with fuzzy value | ||||
| Additional information and documentation updates | *_orig.brep files are arguments *_hole_0.brep files are tools *_cut.brep are the cut results we're getting in KiCad. | ||||
| Tags | No tags attached. | ||||
| Test case number | |||||
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cut_data.zip (57,846 bytes) cut_test.tcl (1,650 bytes) |
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Added some CAD Assistant screenshots. nf_tracks_690_cut.png (31,384 bytes) nf_tracks_3866_cut.png (22,499 bytes) nf_zones_bad_1_cut.png (38,799 bytes) f_tracks_2318_cut.png (21,505 bytes) |
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Still reproduces in 7.8.0+ (e8605596c901d48b5e79deae24eece67f1bc11cf) |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2023-11-24 01:42 | dsa-t | New Issue | |
| 2023-11-24 01:42 | dsa-t | Assigned To | => oan |
| 2023-11-24 01:42 | dsa-t | File Added: cut_data.zip | |
| 2023-11-24 01:42 | dsa-t | File Added: cut_test.tcl | |
| 2023-11-24 01:49 | dsa-t | Note Added: 0114642 | |
| 2023-11-24 01:49 | dsa-t | File Added: nf_tracks_690_cut.png | |
| 2023-11-24 01:49 | dsa-t | File Added: nf_tracks_3866_cut.png | |
| 2023-11-24 01:49 | dsa-t | File Added: nf_zones_bad_1_cut.png | |
| 2023-11-24 01:49 | dsa-t | File Added: f_tracks_2318_cut.png | |
| 2023-12-18 21:16 | dsa-t | Note Added: 0114816 |
