Subject:
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Re: Rotation of Systems
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Newsgroups:
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lugnet.cad.dev
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Date:
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Fri, 20 Sep 2002 13:27:34 GMT
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Viewed:
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591 times
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In lugnet.cad.dev, Ross Crawford writes:
> In lugnet.cad.dev, Orion Pobursky writes:
> > I've been puzzling with this for days and I give up.
> >
> > Here's my problem:
> >
> > I can rotate a single part about it's origin but I'm having trouble figuring
> > out how to rotate a system of parts about the origin of a given part in the
> > system. Can someone point me in the right direction?
>
> Put the system of parts in a sub-model, with the origin at the point of
> rotation, then include the sub-model and rotate that.
>
> HTH
>
> ROSCO
Actually, I am wanting to know how to do this programmatically (i.e. with
rotation matricies)
-Orion
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Message has 2 Replies:
 | | Re: Rotation of Systems
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| (...) How about this? s.origin = singlepart.origin For (each part) diff.origin = part.origin - s.origin part.origin += diff.origin rotate part about part.origin part.origin -= diff.origin Scribble the movement on paper and see if it works. I think (...) (22 years ago, 20-Sep-02, to lugnet.cad.dev)
| | | Re: Rotation of Systems
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| [X-posted to .mlcad] (...) While I can't help because of what Orion revealed here (I'm no programmer!), perhaps Michael Lachmann can help. I have discovered that a simple way to (as a user) rotate around one object's origin is to select the origin (...) (22 years ago, 20-Sep-02, to lugnet.cad.dev, lugnet.cad.mlcad)
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Message is in Reply To:
| | Re: Rotation of Systems
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| (...) Put the system of parts in a sub-model, with the origin at the point of rotation, then include the sub-model and rotate that. HTH ROSCO (22 years ago, 20-Sep-02, to lugnet.cad.dev)
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