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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Wed, 12 Apr 2000 21:13:39 GMT
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Viewed:
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1907 times
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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.
> > How about if I write a program that inlines a part, and shapes it to fit
> > along a specified spline curve?
>
> A program? Do you mean an MSDOS program? Windows? Perl?
Portable Java would be best...
> I really
> think that we should aim beyond software compatibility with the LDraw
> parts library. It should be an entity providing enough information
> for it to be used on any kind of system, current and future, in my
> opinion. I realize that not all agree with me, though.
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.
> This is, BTW, why I wanted the information about the geometry of the
> minifig parts to be shared. I hear that a Windows program exists
> which will compose a posed minifig according to some spicifications,
> but I would still like to have the information needed to do this
> manually (or automatically). (So call me demanding!) But noone
> appears to have or to be willing to share this information, so the
> minifig parts appear to be quite useless to me... :-(
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.
Steve
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Message has 1 Reply:
 | | Re: Voting Open for LCAD Parts Update 2000-01
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| (...) If you are interested to see how I did it, you can view the DAT file for the model at: (URL) 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: (...) (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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| (...) I think I disagree with you. I've found the Bezier curves to be a good model for how the flexible axles bend in real life. But it is important to have a correct model for the flexible part in the first place. While the notched end parts are (...) (25 years ago, 12-Apr-00, to lugnet.cad.dev)
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