Subject:
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Re: Voting Open for LCAD Parts Update 2000-01
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Newsgroups:
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lugnet.cad.dev
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Date:
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Fri, 14 Apr 2000 17:30:30 GMT
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Viewed:
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2088 times
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I posted an updated TFA11 to
<http://www.lugnet.com/cad/dat/parts/?n=1012>. Geez, I wish I could
follow hyperlinks within my newsreader. There are some mistakes in the
part, but the posting was mostly to look at how the main file was
constructed, not the subfile details.
In lugnet.cad.dev, Fredrik Glöckner wrote:
> "Steve Bliss" <blisses@worldnet.att.net> writes:
>
> > stud3a.dat is capitalized so that LEdit won't do a stud-as-line
> > number during editing. Of course, the tip is usually stuck into
> > something, and doesn't flex, so maybe the entire 'skinny tip'
> > section should just be a single STUD3.DAT, stretched to fit?
>
> It would probably be good enough to keep the "tip" in one,
> non-bendable part. Sure, I can think of situations where one would
> put only the outer part of the tip into something, causing the other
> part to bend. But that would probably be quite rare, and I'm not
> planning on implementing it.
OK, I made that change, but kept the segmented tip as comments.
> > faxle1.dat, faxle2.dat, faxle3.dat, faxle4.dat, and faxle5.dat are
> > all required because the segments of the end-section are about
> > 3.6LDU, not 4LDU.
>
> Yes, I noticed. I just "pretended" they were 4 LDU in my mock up, to
> keep things simple. I'm happy to see that you have higher standards
> of quality for the LDraw update. ;-)
I was going to cheat the end-section to 20LDU (thus making each segment
4LDU), but decided to stay honest. Besides, I realized that this would
keep most of the disc-parts off the segment breaks, which might help
prevent obvious artifacts when the part is flexed/bent/curved.
Besides, I figured I'd get flak for cheating the dimensions...
> > axlehol8.dat is a new primitive planned for inclusion in the
> > 2000-01 update.
>
> This is the open ended axle primitive, right?
Right. Looking at the number of axle primitives, it's hard to believe
there are only 5 unique XZ pairs involved.
> > The only difference between the various flexible axle parts would be the
> > positioning of the end parts, and the number of axlehol8 segments.
>
> In the official version of the flexible axles, you may very well use
> only one of the axle8.dat primitives for the central portion of the
> axles, and scale it to fit the space between the faxle5.dat
> primitives. I'm sure that anybody capable of positioning the pieces
> out to compose a bent axle is also capable of scaling down the central
> axle8.dat primitive. Besides, we save a lot of disk space and
> rendering time this way. What do you think?
That's what I did in the file I posted.
But, we aren't going to save on much disk space - the file, as posted,
is 1530 bytes. A version made with short-segments would be about 3280
bytes.
Rendering time is probably more significant. But I don't expect these
axles to generally be in heavy use in constructions. And if they are
ever used extensively, they'll probably be bent. So the practical
savings in rendering time is probably slim.
Steve
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Message has 1 Reply:
 | | Re: Voting Open for LCAD Parts Update 2000-01
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| (...) I think there are a few mistakes in that file. I posted a corrected version which looks good on my system. (...) Yeah, that's a good point. You'll do whatever you want on the issue of splitting the central part of the hose or not, I don't care (...) (25 years ago, 15-Apr-00, to lugnet.cad.dev)
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Message is in Reply To:
| | Re: Voting Open for LCAD Parts Update 2000-01
|
| (...) It would probably be good enough to keep the "tip" in one, non-bendable part. Sure, I can think of situations where one would put only the outer part of the tip into something, causing the other part to bend. But that would probably be quite (...) (25 years ago, 14-Apr-00, to lugnet.cad.dev)
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