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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Thu, 23 Jan 2003 18:22:04 GMT
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Viewed:
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888 times
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"Kevin Clague" <kevin_clague@yahoo.com> skrev i meddelandet
news:H94xC1.11z@lugnet.com...
> In lugnet.cad.dev, Anders Isaksson writes:
> >
> > Line = Intersect(C1.Plane, C2.Plane)
> > if (Dist(C1.Center, Line) = C1.Radius) and (Dist(C2.Center, Line) =
> > C2.Radius) ...
>
> 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...
If the condition above (Dist(...) etc.) holds, then it's just a matter of
projecting the circle centers onto the line, ie. solve for a new line
through the point, perpendicular to the original line.
I suppose I could find code for this at work (http://www.cej.se), but here
at home I try to think about other things :-)
--
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 is in Reply To:
 | | 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 (...) (22 years ago, 22-Jan-03, to lugnet.cad.dev)
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