Subject:
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Re: Conditional lines on sloped wedge parts 43720 and 43721
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Newsgroups:
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lugnet.cad.dat.parts
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Date:
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Mon, 18 Apr 2005 12:54:34 GMT
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Viewed:
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4630 times
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In lugnet.cad.dat.parts, Niels Karsdorp wrote:
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Wedge part 45407 (Wedge 4 x 4 with 1 x 4 Side Plates) has similar sloped
sides as wedge parts 43720 and 43721  . When I examined
these parts in LDView, I noticed that the control points for the conditional
lines on the sloped surface might be wrong:
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I don’t think it’s the control points. I took a quick look at the file,
actually just one of the lines, the first in the file. The control points used
are the two unattached vertices from the triangles adjacent to the conditional
edge. That should be exactly right.
It might be more the way the sloped surface is designed. These two images show
how the conditional lines are sometimes “half-needed”:
I suspect that LDraw cannot outline this surface exactly correctly -- but I
haven’t thought it through yet; I could be wrong.
A finer-grained surface, with more polygons, would work better. But would still
have the problem of ‘half-needed’ conditional lines.
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Before I want to upload part 45407, I want to be sure how to create correct
conditional lines for such sloped surfaces.
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Yes, this should be cleared up.
Steve
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