FreeCADView Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0001253 | Assembly | Bug | public | 2013-09-24 17:23 | 2015-02-03 16:15 |
| Reporter | project4 | Assigned To | ickby | ||
| Priority | normal | Severity | crash | Reproducibility | always |
| Status | closed | Resolution | won't fix | ||
| Summary | 0001253: Coincident doesn't work after transform | ||||
| Description | I'll add the model and 2 movies showing the problem. The scenario is as follows: Adding 2 objects from the same STP file. Those obviously overlap each over, so I'm using the translate feature to move one of them. After that the coincident doesn't work. In second movie I've tried to use align before the coincident, align did work, coincident didn't (I thought I had success with it previously, but this time it didn't work, maybe I did something more to make it work). When adding 2 models that do not overlap, so I can perform the coincident feature on them from the beginning, everything works fine, so I assume the translate breaks something... | ||||
| Additional Information | Using latest assembly branch. OS: Ubuntu 13.04 Platform: 64-bit Version: 0.14.2654 (Git) Branch: jriegel/dev-assembly Hash: 3d4dd4f64f24255dbaec25767cff7b74bb98fc6d Python version: 2.7.4 Qt version: 4.8.4 Coin version: 3.1.3 SoQt version: 1.5.0 OCC version: 6.5.0 | ||||
| Tags | No tags attached. | ||||
| FreeCAD Information | |||||
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Grr... can't upload the movies, despite the fact that they are less than 5MBytes. Can send by email if someone wants to see. I'm sure you will be able to reproduce the problem with the STP file I've attached or any other file. |
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More info, I see in the console the following printout: Solver failed with error 3: step size below limit |
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Can you please upload the video on a filehoster and share a link? I can't reproduce the problem. |
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Video 1: http://www.datafilehost.com/d/4b818830 Video 2: http://www.datafilehost.com/d/5729b47e |
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More info after playing with that a bit more. When 2 model's normals are facing in exactly the same direction, the "opposite" coincident doesn't work. If I help the application by rotating one of the models so the faces that have to connect will face to each other, it will work. After I add 2 objects from the same STP file and translate it in space, the faces I want to connect point in exact the same direction, which creates the problem. It looks like the solver have a problem to understand that it have to rotate the model exactly 180 degrees in one of the directions... |
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ah thanks for the vids. Actually while Investigating I found that I know this problem, but as it is a nasty mathematical issue I always postponed it. Maybe I have time tonight. Thanks for reporting! |
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Thanks. Does the "solver failed" error crash something or it will continue to operate after the error? |
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fixed in the assembly branch of git@github.com:ickby/FreeCAD_constraint.git |
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Thanks! Will try it later today. |
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I've tried it on your latest version and there is still a problem... The operation rotates the objects in the needed direction, but later operations on the object doesn't work as expected, looks like the constraint is not applied after that. Try to add 2 rectangular shapes, move one aside without rotating it, collide the top faces of the rectangles, it will rotate as expected. Now try to align 2 other faces so the rectangular shapes will sit on each other in proper direction... here the problem starts... I'll try to record a video with an example later... |
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depricated code |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2013-09-24 17:23 | project4 | New Issue | |
| 2013-09-24 17:23 | project4 | File Added: cube.step | |
| 2013-09-24 17:29 | project4 | Note Added: 0003650 | |
| 2013-09-24 17:33 | project4 | Note Added: 0003651 | |
| 2013-09-24 17:45 | ickby | Note Added: 0003652 | |
| 2013-09-24 18:43 | project4 | Note Added: 0003655 | |
| 2013-09-25 13:41 | project4 | Note Added: 0003666 | |
| 2013-09-26 14:28 | ickby | Note Added: 0003677 | |
| 2013-09-26 15:00 | project4 | Note Added: 0003678 | |
| 2013-10-03 08:24 | ickby | Note Added: 0003711 | |
| 2013-10-03 08:45 | project4 | Note Added: 0003712 | |
| 2013-10-18 17:52 | project4 | Note Added: 0003766 | |
| 2013-11-04 13:21 | yorik | File Deleted: cube.step | |
| 2013-11-04 13:21 | yorik | File Added: cube.step | |
| 2015-02-03 16:15 | ickby | Note Added: 0005763 | |
| 2015-02-03 16:15 | ickby | Status | new => closed |
| 2015-02-03 16:15 | ickby | Assigned To | => ickby |
| 2015-02-03 16:15 | ickby | Resolution | open => won't fix |
