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In lugnet.cad.dat.parts, Don Heyse wrote:
> In lugnet.cad.dat.parts, Willy Tschager wrote:
> >
> > here are the rules. because the level of our pow-how will start
> > right from the top you have to show qualification. I definitely
> > won't waist my time with unprepared people which have no clue about
> > the basics. now, I'll post my qualification below and when you think
> > you are fit enough post yours and join me.
> >
> > the first topic to be discussed will be: bmp2dated patterns are crap!
>
> That's true. Bmp2dat needs some real edge tracking algorithms instead
> of just runlength encoding. Something like this.
>
> http://www.ipf.tuwien.ac.at/fr/buildings/diss/node94.html
>
> It also needs an autorotate function. Just look for the longest
> straight line near 90 or 0 degrees and rotate it to exactly 90 or 0
> for starters.
>
> But what about patterns made with quad2dat.exe? It's a more manual
> procedure, but doesn't that make it better?
Or you could search the net for vectorizer programs like this one.
http://www.algolab.com/Samp_Cnv/Pvf.htm
Here's a free vectorizer with source code.
http://xmailserver.org/davide.html
I wonder how hard it would be to modify it to handle color and
output ldraw format.
Enjoy,
Don
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Message has 1 Reply:
 | | Re: Patterns suck!
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| (...) I'm gonna have to look into this again. Vectorizers are cool. Here's some more opensource code (3 URLs) a really nifty description of how to use the potrace vectorizer to generate edges, and the netlib triangulator to create the triangles. (...) (20 years ago, 5-May-04, to lugnet.cad.dat.parts, lugnet.cad.dev)
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Message is in Reply To:
| | Re: Patterns suck!
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| (...) That's true. Bmp2dat needs some real edge tracking algorithms instead of just runlength encoding. Something like this. (URL) also needs an autorotate function. Just look for the longest straight line near 90 or 0 degrees and rotate it to (...) (20 years ago, 5-May-04, to lugnet.cad.dat.parts)
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