View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0026311 | Open CASCADE | OCCT:Modeling Algorithms | public | 2015-06-04 10:25 | 2015-06-04 11:19 |
| Reporter | Assigned To | ||||
| Priority | normal | Severity | feature | ||
| Status | new | Resolution | open | ||
| Target Version | Unscheduled | ||||
| Summary | 0026311: Add check in Param-Param-intersection algorithm if surfaces are coincided or if thay do not have any intersection | ||||
| Description | If surfaces are coincided then there is no point in returning any intersection curve (see bug #26151). If surfaces do not have any intersection the intersection algorithm will return empty result. However, processing this case takes too much time. Therefore, it will be better to detect this case before calling intersection algorithm (creating Walking-line). | ||||
| Steps To Reproduce | 1. Example of coinciding surfaces: 1.1. See Steps To Reproduce for bug #26151. 1.2. Modified test case bugs\modalg_2\bug23732: ------ restore [locate_data_file bug23732_fx1.brep] b1 restore [locate_data_file bug23732_fx2.brep] b2 mksurface s1 b1 mksurface s2 b1 intersect result s1 s2 ------ 2. Example of not-intersecting surfaces: 2.1. See message http://tracker.dev.opencascade.org/view.php?id=26151#c41807: offset faces_type_i C8, offset faces_type_i D7, offset shape_type_i C8, offset shape_type_i D6, offset shape_type_i D7. | ||||
| Tags | No tags attached. | ||||
| Test case number | |||||
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2015-06-04 10:38 developer |
ref.zip (28,127 bytes) |
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One of idea to detect not-intersecting surfaces is that the Surface-Surface extrema should be used before intersection calling. It is enough to find only one minimum (there is no point in finding every extrema). If this minimal distance is greater, than tolerance, surfaces are not intersected. Nevertheless, what about performance? |
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2015-06-04 11:19 developer |
fix.zip (32,355 bytes) |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2015-06-04 10:25 |
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New Issue | |
| 2015-06-04 10:25 |
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Assigned To | => msv |
| 2015-06-04 10:38 |
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File Added: ref.zip | |
| 2015-06-04 10:38 |
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File Added: fix.zip | |
| 2015-06-04 11:15 |
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Note Added: 0041929 | |
| 2015-06-04 11:18 |
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File Deleted: fix.zip | |
| 2015-06-04 11:19 |
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File Added: fix.zip |
