Subject:
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Re: part skins (was Re: some thoughts on ldraw parts)
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Newsgroups:
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lugnet.cad.dev
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Date:
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Wed, 4 Oct 2000 16:29:48 GMT
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Viewed:
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940 times
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In lugnet.cad.dev, Steve Demlow writes:
> Yes indeedy, and coincidentally I slung together the beginnings of such a
> program tonight.
Cool beans!
> You feed it the outlines of the features of the printed
> element, along with a "color seed" inside each colored region, and it
> generates the triangles and colors them appropriately.
Define "feed" in this context... an ordered vertex list? That's still hard to
do, what is needed is an app that lets me create these regions superimposed on
a bitmap.
> (Currently it
> generates only triangles, but merging triangles into quads when appropriate
> isn't hard.) My code is really just a wrapper around Jonathan Shewchuk's
> "Triangle" library ( http://www.cs.cmu.edu/~quake/triangle.html ), which
> does all the hard stuff.
>
> Ideally there would be a nice GUI on top of it that would let you draw the
> outlines on top of a bitmap (scanned image of the printed part);
Er, ah, kind of like that.
> Java2D
> would make this both relatively easy and portable. But even as a command
> line tool it shows great promise. The code needs some cleanup to be really
> useful, but as soon as it's decent I will make it available.
I think this is an awesome start. Like I said, even I would spend some time on
doing decorated parts if it was easy to do.... :-)
++Lar
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Message has 1 Reply:
 | | Re: part skins (was Re: some thoughts on ldraw parts)
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| (...) You are correct on both points. The primary value of the tool at this point is that it removes the tedium of defining polygons to connect vertices. It's a start! (...) Your edge-detection suggestion is certainly the ideal, but would get a bit (...) (24 years ago, 4-Oct-00, to lugnet.cad.dev)
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Message is in Reply To:
| | Re: part skins (was Re: some thoughts on ldraw parts)
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| (...) Yes indeedy, and coincidentally I slung together the beginnings of such a program tonight. You feed it the outlines of the features of the printed element, along with a "color seed" inside each colored region, and it generates the triangles (...) (24 years ago, 4-Oct-00, to lugnet.cad.dev)
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