Subject:
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Re: Tangent between two circles in 3D space?
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Newsgroups:
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lugnet.cad.dev
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Date:
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Tue, 21 Jan 2003 22:32:19 GMT
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Viewed:
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759 times
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"Kevin Clague" <kevin_clague@yahoo.com> skrev i meddelandet
news:H92o0p.CGB@lugnet.com...
>
> In 3D space you can have circles that are tangent along one line. Imagine • a
> vertical bar that has a circle attached tangentially, but can turn around
> the bar, and slide up and down the bar. Attach another circle to the bar
> with the same capabilities. You can hold one circle fixed, and place the
> other circle an infinite number of places and orientations and still be
> tangent to the line.
Line = Intersect(C1.Plane, C2.Plane)
if (Dist(C1.Center, Line) = C1.Radius) and (Dist(C2.Center, Line) =
C2.Radius) ...
(Or have I misunderstood?)
--
Anders Isaksson, Sweden
BlockCAD: http://user.tninet.se/~hbh828t/proglego.htm
Gallery: http://user.tninet.se/~hbh828t/gallery/index.htm
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Message has 1 Reply:
 | | Re: Tangent between two circles in 3D space?
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| (...) This looks great! This is what I was trying say the other day during my ah,hah! moment, but not so tersely. Now I just need to know how to calculate the intersection of the line and each circle and I'll be all set I think. I'll do some (...) (21 years ago, 22-Jan-03, to lugnet.cad.dev)
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Message is in Reply To:
| | Re: Tangent between two circles in 3D space?
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| (...) With two circles in the same plane you can have four possible tangent lines. LSynthcp uses this to calculate straight line segments of rubber bands around pulleys. In 3D space you can have circles that are tangent along one line. Imagine a (...) (21 years ago, 21-Jan-03, to lugnet.cad.dev)
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