Subject:
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Re: New LDraw part author tool and tutorial: Ytruder
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Newsgroups:
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lugnet.cad.dev
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Date:
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Thu, 31 Jan 2008 03:43:14 GMT
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Viewed:
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5885 times
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In lugnet.cad.dev, Philippe Hurbain wrote:
> <http://philohome.com/isecalc/ytruder.htm<http://philohome.com/isecalc/ytr1.gif>>
>
> [<http://philohome.com/isecalc/ytruder.htm Ytruder>] utility creates a sheet
> of triangle and quads from a set of lines. This is done by extrusion in the
> LDraw Y direction (hence the name). Though somewhat similar to
> [<http://philohome.com/isecalc/coverer.htm Coverer>] it has a few other
> possibilities, such as the capability to handle several distinct paths of
> lines at the same time.
>
> ----------------------------------
>
> [<http://philohome.com/isecalc/yttut.htm<http://philohome.com/isecalc/ytimages/50914-tip.gif>>]
>
> [<http://philohome.com/isecalc/yttut.htm Building shapes with Quad2Dat, Edger
> and Ytruder>] is a tutorial describing how I created the finger of
> <http://peeron.com/inv/parts/50914 50914 part>, using several tools.
>
> Enjoy!
>
> <http://philohome.com Philo>
Since we all have different tastes and different ways to approach problems, the
more the alternatives the better.
But are you aware of that tasks like this can be taken on using LDraw Script?
http://web.telia.com/~u66203131/LDraw/lds/lds.htm
http://web.telia.com/~u66203131/LDraw/lds/ldssyntx.htm
For example, You define the first, top, line P1-P5,
the second line, P21-P25,
then write a very simple script:
P1 5 -10 20
P2 10 -11 22
P3 15 -12 25
P4 12 -14 23
P5 10 -11 21
P21 5 10 20
P22 10 11.3 22
P23 15 12.7 25
P24 12 14.2 23
P25 10 11.736 21
FOR I=1 TO 4
2 24 P(I) P(I+1)
4 16 P(I) P(I+1) P(I+21) P(I+20)
2 24 P(I+20) P(I+21)
NEXT I
Then just run the script though lds.exe and you get it in LDraw code.
Or if you wish to extrude a 2-d line into 3d with a constant height, for example
24 LDU on the Y axis:
EXTRUDE 0 24 0
LINE
P1
P2
P3
P4
P5
LINE END
EXTRUDE OFF
/Tore
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Message has 1 Reply:
 | | Re: New LDraw part author tool and tutorial: Ytruder
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| Hello Tore, You are right, I should look more closely at LDraw script. Certainly a flexible tool... Would you already have a utility that converts a ldraw file (say with a path of lines) into a set of points coordinates usable by LDS? Philo (16 years ago, 14-Feb-08, to lugnet.cad.dev)
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