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Subject: 
Re: Tangent between two circles in 3D space?
Newsgroups: 
lugnet.cad.dev
Date: 
Thu, 23 Jan 2003 15:01:29 GMT
Reply-To: 
Steven B. Combs <steven@bricksinmypocketNOSPAM.org>
Viewed: 
696 times
  
Kevin,

I have been watching this thread with great interest and it is really fun to
watch the community pitch in and assist you.  Would you do me a favor.  When
you finally have the solution, could you summarize in a post?  I plan on
using this as a teaching point for one of my college courses.

Thanks,
Steven
--
Steven B. Combs, Publisher
Bricks in my Pocket (BimP)
http://www.bricksinmypocket.org
http://faculty.ivytech.edu/~scombs/robotics

BimP Submission Information:
http://www.bricksinmypocket.org/submissions.html

lugnet member #414
"Kevin Clague" <kevin_clague@yahoo.com> wrote in message
news:H94xC1.11z@lugnet.com...
In lugnet.cad.dev, Anders Isaksson writes:
"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?)

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 scrougin on that.

Thanks,
Kevin
--
Anders Isaksson, Sweden
BlockCAD:  http://user.tninet.se/~hbh828t/proglego.htm
Gallery:   http://user.tninet.se/~hbh828t/gallery/index.htm



Message is in Reply To:
  Re: Tangent between two circles in 3D space?
 
(...) 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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