View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0026863 | Community | OCCT:Visualization | public | 2015-11-11 19:34 | 2017-04-28 13:07 |
| Reporter | Roman Lygin | Assigned To | bugmaster | ||
| Priority | normal | Severity | feature | ||
| Status | closed | Resolution | duplicate | ||
| Platform | Windows | OS | VC++ 2013 | ||
| Product Version | 6.9.1 | ||||
| Target Version | 7.2.0 | ||||
| Summary | 0026863: Weird visualization of the shape located at a very far point from axis origin | ||||
| Description | The enclosed small cone (about 5x5x5 mm) is located in a very far point (1200m, 800m, 0m). The model is real-world coming from a customer file. Shading is very weird (see shading.png) and rotation triggers a lot of flickering. Triangulation is fine - see triangulation.png After moving the shape close to origin (0,0,0) display is fine. | ||||
| Steps To Reproduce | restore t.brep t bounding t #small bounding box located very far vinit vdisplay t #weird display restore t.brep t ttranslate t 1199982.5707560785 800037.71111409366 -4.7890963413671246 vclear vdisplay t #OK | ||||
| Tags | No tags attached. | ||||
| Test case number | |||||
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t.zip (5,844 bytes) |
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shading.png (77,920 bytes) |
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triangulation.png (124,747 bytes) |
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shading_ok.png (83,674 bytes) |
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Dear Roman, this is a known limitation caused by limited precision of float numbers (visualization uses single precision, thus precision issues occurs earlier than on modeling level usually using double precision floats). |
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Thank you Kirill. That was among the guesses we had in a team. Good to know you seem to be working already on this (#24393 is not accessible though). |
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Dear bugmaster, please close the issue as duplicate. |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2015-11-11 19:34 | Roman Lygin | New Issue | |
| 2015-11-11 19:34 | Roman Lygin | Assigned To | => kgv |
| 2015-11-11 19:34 | Roman Lygin | File Added: t.zip | |
| 2015-11-11 19:34 | Roman Lygin | File Added: shading.png | |
| 2015-11-11 19:35 | Roman Lygin | File Added: triangulation.png | |
| 2015-11-11 19:35 | Roman Lygin | File Added: shading_ok.png | |
| 2015-11-11 20:24 | kgv | Severity | minor => feature |
| 2015-11-11 20:24 | kgv | Target Version | 7.0.0 => 7.1.0 |
| 2015-11-11 20:29 | kgv | Note Added: 0048081 | |
| 2015-11-11 20:37 | Roman Lygin | Note Added: 0048082 | |
| 2016-10-25 09:43 | kgv | Target Version | 7.1.0 => 7.2.0 |
| 2017-04-28 10:07 | kgv | Note Added: 0065631 | |
| 2017-04-28 10:07 | kgv | Assigned To | kgv => bugmaster |
| 2017-04-28 10:07 | kgv | Status | new => feedback |
| 2017-04-28 10:07 | kgv | Resolution | open => duplicate |
| 2017-04-28 13:07 | bugmaster | Status | feedback => closed |
