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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Thu, 13 Apr 2000 07:12:27 GMT
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Viewed:
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1915 times
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Steve Bliss <blisses@worldnet.att.net> writes:
> In lugnet.cad.dev, Fredrik Glöckner wrote:
>
> > In my mock up, I divided the notched end parts of the flexible axles
> > into five parts, each with a 4 LDU length. That worked quite well. A
> > similar dividing of the official part would be great for my needs.
>
> Hmm. That sounds workable.
If you are interested to see how I did it, you can view the DAT file
for the model at:
http://www.lugnet.com/cad/dat/models/?n=1056
search for the keyword "Bezier" to find the first occurence of the
bent flexible axle. I used the following names for the various parts
of the axle:
AXLE-EN3.DAT the thin pins at the ends
AXLE-EN1.DAT the cylindrical sections at the ends: three on each end
AXLE-SEG.DAT the open-ended axle segments.
These are defined further down in the MPD.
> I agree, I just don't see how flexible parts can be coded in LDraw. If
> you've got some ideas in this direction, I'd love to see them. The lack
> of flex in LDraw parts is a big drawback of the language, IMO.
I would be quite happy to have the individual segments available in
the LDraw library, as with "73590 Hose Flexible 8.5L". I think this
simple, generic solution is quite useful: That way anybody can create
whatever wrapper program needed to compose a bent hose.
> I'd share the specifications of the minifig angles, but I didn't
> document them, and they are now baked into the code. :( All that's left
> is the transform matrix.
I really don't want to be a hassle here. It's just that I wanted to
experiment with animating the minifigs, and was quite put off by the
apparent total lack of documentation on how to use the parts. I can
probably work out something useable myself by studying the complete
minifig shortcut and the individual parts, but this process could have
been simpler in my opinion. If I do find out some useful details,
I'll publish them here.
Fredrik
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Message has 2 Replies:
 | | Re: Voting Open for LCAD Parts Update 2000-01
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| (...) No hassle felt on my end--I feel stupid that I went to all the work of figuring out the angles, and then didn't document them. (...) Good point. We should definitely try harder to document part-usage. (...) Now that you mention the complete (...) (25 years ago, 13-Apr-00, to lugnet.cad.dev)
| | | Re: Voting Open for LCAD Parts Update 2000-01 [DAT]
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| (...) I could redo the part, slicing it into sections that are 4LDU long. To properly package, this, each distinct/unique section should be made into a subpart file, and the main part files would be a list of these subparts. Taking this approach, (...) (25 years ago, 13-Apr-00, to lugnet.cad.dev)
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Message is in Reply To:
| | Re: Voting Open for LCAD Parts Update 2000-01
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| (...) Hmm. That sounds workable. (...) Portable Java would be best... (...) I agree, I just don't see how flexible parts can be coded in LDraw. If you've got some ideas in this direction, I'd love to see them. The lack of flex in LDraw parts is a (...) (25 years ago, 12-Apr-00, to lugnet.cad.dev)
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