Subject:
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How exactly DO I code optional lines, anyway?
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Newsgroups:
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lugnet.cad.dev
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Date:
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Wed, 21 May 2003 20:17:09 GMT
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Viewed:
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921 times
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In reading past posts, it seems that putting in optional lines is
encouraged, but I have not been able to find any information on the proper
way of using them.
First, clearly I use them on outside curves, but I was not able to determine
definitively if they should be used on inside curves.
Second, I have not been able to find any info on how to determine what the
third and fourth points are supposed to be. From looking at a number of
models, usually these points are set to one point in each of the adjacent
quads/triangles from one of the endpoints of the line. But this does not
always seem to be the case. Sometimes the points are in the same plane as
the endpoint, but sometimes not. Sometimes the two points seem to be
totally unrelated and are halfway across the world from the optional line.
Any guidance in this would be most appreciated! (This might be a really
good topic for one of those tutorials).
Thanks!
--Lance--
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Message has 3 Replies:
 | | Re: How exactly DO I code optional lines, anyway?
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| (...) Yes. They're needed to render transparent parts correctly. (URL) they're useful for the curve smoothing algorithm in LDview and perhaps other programs. (...) It's often easiest to place the 3rd and 4th points on the corner of an adjacent (...) (21 years ago, 21-May-03, to lugnet.cad.dev)
| | | Re: How exactly DO I code optional lines, anyway? [DAT]
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| (...) I'll drop a few quick secrets on how I use conditional lines. First off, I use LDAO and L3lab for the largest amount of part modeling. Usually check occasionally with LDview and Ldraw. So if you are using MLCad, and do not have LDAO, I would (...) (21 years ago, 22-May-03, to lugnet.cad.dev)
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