Dimensioning of a Revolve

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gsandy
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Dimensioning of a Revolve

Post by gsandy »

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.

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vocx
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Re: Dimensioning of a Revolve

Post by vocx »

gsandy wrote: Mon Sep 09, 2019 7:37 pm Is there any way of adding a drawing page ...
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gsandy
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Re: Dimensioning of a Revolve

Post by gsandy »

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!
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wandererfan
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Re: Dimensioning of a Revolve

Post by wandererfan »

gsandy wrote: Mon Sep 09, 2019 7:37 pm Is there any way of adding a drawing page that shows dimensions 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.
Temp_noDraw_TD_Coarse.png
Temp_noDraw_TD_Coarse.png (25.1 KiB) Viewed 1853 times
We'll have to check the shape brep with the OCC DRAW program.
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gsandy
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Re: Dimensioning of a Revolve

Post by gsandy »

Thanks for looking into this Wandererfan.
chrisb
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Re: Dimensioning of a Revolve

Post by chrisb »

That's rather surprising, because I get a reasonable result - despite showing an error GO::projectShape - OCC error - - while projecting shape.
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gsandy
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Re: Dimensioning of a Revolve

Post by gsandy »

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!
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Re: Dimensioning of a Revolve

Post by freedman »

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.
gsandy
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Re: Dimensioning of a Revolve

Post by gsandy »

Great tip Freedman, hadn't come across that yet but no doubt I would have as my drawing progressed.
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Re: Dimensioning of a Revolve

Post by wandererfan »

gsandy wrote: Tue Sep 10, 2019 3:37 am Chrisb did you use "The Coarse algo (polygon approximation)" to get what you got? And how do you do that?
The first entry in the HLR Parameters section of the PropertyEditor data tab for the View.
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