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 CAD / Development / 3604
3603  |  3605
Subject: 
Re: LDraw-Mode vs. BezGen... problems?
Newsgroups: 
lugnet.cad.dev
Date: 
Mon, 10 Jan 2000 23:57:32 GMT
Viewed: 
514 times
  
Fredrik Glöckner <fredrik.glockner@bio.uio.no> writes:
The user can choose the number of segments (n) to chop the hose into,
and the program then puts out n+1 points in 3D space, with the first
and last being the end points.  The choice of these points is
technically a bit involved.  I looked up the comp.graphics.algorithms
FAQ and looked into the references printed there for the theory behind
the curves.

Between each sucessive pair of points, one hose segment is put.  This
segment is rotated to have the same orientation as the distance
between the points.  The rotation may sound a bit difficult to do, but
once I found out how to do it, it turned out to be very easy.  Here is
a reference:

Sound's useful for lots of different types of hoses!  Is there any chance
that you could make a little program that doesn't require Emacs?
--Bram


Bram Lambrecht           / o   o \           BramL@juno.com
-------------------oooo-----(_)-----oooo-------------------
    WWW:   http://www.chuh.org/Students/Bram-Lambrecht/
-----------------------------------------------------------



Message has 2 Replies:
  Re: LDraw-Mode vs. BezGen... problems?
 
(...) actually, i think this sounds like the sort of thing that is just *ripe* to be a plug-in for MLCad once mike gets plug-ins implemented... personally i'd also like to see a plug-in sorter that allows you to sort pieces by location in 3D space, (...) (25 years ago, 11-Jan-00, to lugnet.cad.dev)
  Re: LDraw-Mode vs. BezGen... problems?
 
(...) Yep, I've used it for the Flex-System hoses and the ribbed hoses from the Technic line. But I'm sure it can be used to model most kinds of flexible elements in LEGO, possibly even the 11L chain links seen in many LEGO themes, if you are a bit (...) (25 years ago, 11-Jan-00, to lugnet.cad.dev)

Message is in Reply To:
  Re: LDraw-Mode vs. BezGen... problems?
 
(...) I'm happy to hear that you found my program interesting, and I realize that LDraw-mode will not be a mainstream application by far (not yet anyway), as most people here don't seem to use Emacs. My program probably does fairly much the same as (...) (25 years ago, 10-Jan-00, to lugnet.cad.dev)

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