FreeCADView Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0000910 | FreeCAD | Bug | public | 2012-12-07 21:18 | 2012-12-18 12:34 |
| Reporter | mirage335 | Assigned To | |||
| Priority | normal | Severity | major | Reproducibility | always |
| Status | closed | Resolution | fixed | ||
| Fixed in Version | 0.13 | ||||
| Summary | 0000910: Circles Extrude Only Surfaces | ||||
| Description | Extruding a circle always produces a surface, even when the _ button is checked. Tested against FreeCAD_sf_master commit 3987ec36b529e877ec80fd69ebab877c8a8ba2ea . Steps to reproduce: Open FreeCAD. Create new document and XY plane sketch. Draw a circle. Extrude circle, with "Create solid" checked. Observe the ends of the cylinder are uncapped, indicating a surface. | ||||
| Tags | No tags attached. | ||||
| FreeCAD Information | |||||
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Cannot reproduce this on: Ubuntu 12.04.1 LTS Version: 0.13.1733 (Git) |
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Cannot reproduce this either. You should upload a test file which doesn't work for you so that we can have a closer look. |
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When reporting bugs you need to be as clear as possible explaining the steps to reproduce. Your statement "draw a circle" is too vague: there are 3 ways to do that in FreeCAD. 1. Creating a Draft Circle with the Draft workbench 2. Creating a Sketch from the Sketcher/Part Design workbench, with a circle in it 3. In the Part workbench use the "Create primitives..." icon or menu Of these 3 cases, 1 and 2 succeed in creating a solid without the need to check the "create solid" checkbox. But 3 fails to do so even with create solid checked. Also it's useful to paste the complete content of the About FreeCAD menu. OS: Ubuntu 12.04.1 LTS Platform: 64-bit Version: 0.13.1757 (Git) Branch: master Hash: 22cfda67defb281ccc707ed5c0b9e56584ec4982 Python version: 2.7.3 Qt version: 4.8.1 Coin version: 3.1.3 SoQt version: 1.5.0 OCC version: 6.5.0 |
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Hi guys If you read between the lines I think I can see what he has done He has not told you to change work benches but if you read his instructions they seem to imply that he is doing so. Start in PartDesign wb, create a new document, create a new sketch on the xy plane add a circle within that sketch while in edit mode, hence with sketcher then close edit mode for the sketch then change to part work bench then select the sketch (i.e. the circle) then use the Part WB Extrude tool (not the Part Design Pad tool) and then even with "create solid" ticked, you get a tube i.e. a surface Part Extrude should create a surface from a circle and a solid from a plane, so that seems OK but what is the create solid tick box for? I can't seem to get it to anything. OS: Ubuntu 12.04.1 LTS Platform: 64-bit Version: 0.13.1768 (Git) Branch: master Hash: 4344df8595c6509271a16e989c78095f66dba3c2 Python version: 2.7.3 Qt version: 4.8.1 Coin version: 3.1.3 SoQt version: 1.5.0 OCC version: 6.5.0 |
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That's exactly what I did and it creates a solid. But there is indeed a problem. When changing the extrusion length afterwards (the Dir property) or creating the a new extruded shape then it's not a solid anymore. I remember we had this problem on the pad/pocket functions too. The solution is make an explicit copy of the old shape. But basically this must be a bug in OCC. |
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Werner, I had another go after reading your response. What seems to be happening for me is that it only creates a solid the FIRST time a sketch is used. So my post above is not quite correct. As you said if you adjust the extrusion parameters after construction it reverts to a surface. 1) do the above to get the circle in a sketch now if you tick create solid box the first time you extrude it will create a solid. 2)if you now try to create further extrusions from the same sketch either immediately or by closing the extrusion task and starting it again you always get only a surface even with create solid ticked. 3) if you select the sketch, then go to the Edit menu...Duplicate selection and then you get a new copied sketch. This new copied sketch will work the same as an entirely new sketch made from the sketcher, in that it will only make a solid if you tick the box and extrude the first time. 4) interestingly if you start fresh again, make a sketch with a circle make an extrusion of either solid or surface, ... then delete the extrusion but not delete the sketch, and try again, it will no longer create the solid! Its almost like the sketch gets tainted or something! 5)If I create a circle in Part WB create primitives and try to extrude it, it will not create a solid. From my memory I thought the code for Part extrusion worked something like this. If create solid box is ticked, first FreeCAD looks to see what type of shape you have selected, then if it is an edge or wire, it first tries to create a surface from the edge/wire and then extrudes that, hence gives you a solid not an extruded surface? If I am correct so far, then perhaps the problem is that FreeCAD is only doing this shape type check then upgrade to face/surface under some limited circumstances. Perhaps FreeCAD is somehow bypassing this logic under some circumstances? Perhaps FreeCAD is not checking to see if this tick box is ticked? Jim |
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git show f176811 |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2012-12-07 21:18 | mirage335 | New Issue | |
| 2012-12-08 09:24 | helo10 | Note Added: 0002627 | |
| 2012-12-08 09:54 | wmayer | Note Added: 0002628 | |
| 2012-12-12 00:42 | normandc | Note Added: 0002634 | |
| 2012-12-12 00:43 | normandc | Note Edited: 0002634 | |
| 2012-12-17 10:57 | jmaustpc | Note Added: 0002648 | |
| 2012-12-17 19:38 | wmayer | Note Added: 0002655 | |
| 2012-12-18 00:05 | jmaustpc | Note Added: 0002657 | |
| 2012-12-18 00:09 | jmaustpc | Note Edited: 0002657 | |
| 2012-12-18 12:34 | wmayer | Note Added: 0002658 | |
| 2012-12-18 12:34 | wmayer | Status | new => closed |
| 2012-12-18 12:34 | wmayer | Resolution | open => fixed |
| 2012-12-18 12:34 | wmayer | Fixed in Version | => 0.13 |
