Dimensioning of a Revolve
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Dimensioning of a Revolve
Is there any way of adding a drawing page that shows dimensions of a revolve?
In the attached I can add a page and dimensions of the simple cube but not the revolve.
OS: Windows 7
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.16131 (Git)
Build type: Release
Branch: releases/FreeCAD-0-18
Hash: 3129ae4296e40ed20e7b3d460b86e6969acbe1c3
Python version: 3.6.6
Qt version: 5.6.2
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: English/NewZealand (en_NZ)
In the attached I can add a page and dimensions of the simple cube but not the revolve.
OS: Windows 7
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.16131 (Git)
Build type: Release
Branch: releases/FreeCAD-0-18
Hash: 3129ae4296e40ed20e7b3d460b86e6969acbe1c3
Python version: 3.6.6
Qt version: 5.6.2
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: English/NewZealand (en_NZ)
- Attachments
-
- Temp.FCStd
- (49.54 KiB) Downloaded 45 times
Re: Dimensioning of a Revolve
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Re: Dimensioning of a Revolve
Thanks vocx, I didn't know it was obsolete.
Tried the TechDraw WB and same thing happened, the cube was OK but the "Bullet" would not work!
Tried the TechDraw WB and same thing happened, the cube was OK but the "Bullet" would not work!
- wandererfan
- Veteran
- Posts: 6309
- Joined: Tue Nov 06, 2012 5:42 pm
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Re: Dimensioning of a Revolve
I'm going to guess that this is an OCC problem. The parallel and perspective HLR/Projection algos don't fail, but they don't return any edges either. The Coarse algo (polygon approximation) produces a reasonable result, but of course that is useless for dimensioning.
We'll have to check the shape brep with the OCC DRAW program.
- Attachments
-
- Temp_noDraw_TD.brep
- (191.6 KiB) Downloaded 23 times
Re: Dimensioning of a Revolve
Thanks for looking into this Wandererfan.
Re: Dimensioning of a Revolve
That's rather surprising, because I get a reasonable result - despite showing an error GO::projectShape - OCC error - - while projecting shape.
OS: macOS High Sierra (10.13)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.18095 (Git)
Build type: Release
Branch: master
Hash: 27cb54009b57c1938f7ff97026c8b35c1688233f
Python version: 3.7.3
Qt version: 5.12.1
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: English/Germany (en_DE)
OS: macOS High Sierra (10.13)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.18095 (Git)
Build type: Release
Branch: master
Hash: 27cb54009b57c1938f7ff97026c8b35c1688233f
Python version: 3.7.3
Qt version: 5.12.1
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: English/Germany (en_DE)
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Re: Dimensioning of a Revolve
Chrisb did you use "The Coarse algo (polygon approximation)" to get what you got? And how do you do that?
I replaced the B Spline with an Arc and got a page that I could dimension!
I replaced the B Spline with an Arc and got a page that I could dimension!
Re: Dimensioning of a Revolve
When dimensioning a revolve that was created with an arc; Sometimes in the drawing the sketch side will dimension as an arc and the revolved side can show as a b-spline and I can't get a dimension on it. It's obvious to me that OCC probably recognizes the arc on one side but the revolved side has no hard geometry lines so it just defaults to a b-spline.
Last edited by freedman on Tue Sep 10, 2019 2:31 pm, edited 1 time in total.
Re: Dimensioning of a Revolve
Great tip Freedman, hadn't come across that yet but no doubt I would have as my drawing progressed.
- wandererfan
- Veteran
- Posts: 6309
- Joined: Tue Nov 06, 2012 5:42 pm
- Contact: