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Subject: 
Re: Intersection of 2 3D lines?
Newsgroups: 
lugnet.cad.dev
Date: 
Wed, 13 Sep 2000 16:47:37 GMT
Reply-To: 
rui.martins@linkSAYNOTOSPAM.pt
Viewed: 
476 times
  
On Wed, 13 Sep 2000, Steve Bliss wrote:

In lugnet.cad.dev, Travis Cobbs wrote:

If I have two co-planar lines in 3-space, does anyone know how I can
determine their intersection?

If it makes the equations easier, the plane that they are in is:

Z = 1 - X - Y
otherwise written
X + Y + Z = 1

Anyone?

You can use the "Line Intersect" tab on my rotate.xls spreadsheet (get it
from <http://www.geocities.com/partsref/>).  It's only 2D, but you can do
XY first, then XZ.  The resulting XYZ values will be your intersection.

Not as elegant as Rui's solution, but it works for me...

Well, thanks Steve.
But you could easilly make it 3D couldn't you ?!  8)

See ya



Message has 1 Reply:
  Re: Intersection of 2 3D lines?
 
Thanks to both of you. Given that this newsgroup covers both part development and cad program development (with part development getting more posts for obvious reasons), I probably should have specified that I needed to do this programatically. (On (...) (24 years ago, 13-Sep-00, to lugnet.cad.dev)

Message is in Reply To:
  Re: Intersection of 2 3D lines?
 
(...) You can use the "Line Intersect" tab on my rotate.xls spreadsheet (get it from (URL)). It's only 2D, but you can do XY first, then XZ. The resulting XYZ values will be your intersection. Not as elegant as Rui's solution, but it works for me... (...) (24 years ago, 13-Sep-00, to lugnet.cad.dev)

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