Subject:
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Re: Seams like a problem
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Newsgroups:
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lugnet.cad.dev
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Date:
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Wed, 11 Oct 2000 23:17:34 GMT
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Viewed:
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1674 times
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Travis Cobbs wrote...
> Thanks for this info, Lars. I'll be updating LDView prior to releasing v1.0
> to take these things into account. I'm probably going to take rule 2 and
> recursively apply it up the line to verify that none of the ancestors are
> parts. Does anybody see any problems with this?
Yes, I think it is unncessary. Why would you do that?
Besides it would hurt performance. With the current scheme I set a
Seamable flag on LT1 references once during input. Then if seams
are turned on I can simply test the flag when traversing the tree.
> I'm a little confused here, though, because it seems to me that rule 2 would
> prevent the seams from appearing in subparts, as long as they are truly
> that: SUBparts (although sub-subparts would have problems with a
> single-level check for your parent being a part). If someone were to
> reference a subpart directly, then seams would appear, of course. I think
> the recursive check would prevent spurious seams for all subparts. Am I
> missing something here?
I'm not sure what you're aiming at. Can you give an example?
A subpart should only be a bit of a part that can be used repeatedly
to reduce part file size.
A subpart should not be a complete part, and parts should not be
subassemblies or shortcuts referencing other parts.
The idea is to consider a part as a unit that can be slightly shrunken.
Whether a part is one large DAT file or made up of several is unimportant.
> Great job on tracking down #3, by the way; that's a truly nasty gotcha.
> Needless to say, LDView currently exhibits the same problem when the seam
> width is set to anything other than 0.
Thanks, I'm glad you understand and appreciate it!
/Lars
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Message has 1 Reply:
 | | Re: Seams like a problem
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| "Lars C. Hassing" <lch@ccieurope.com> wrote in message news:G2AJD0.KAC@lugnet.com... (...) v1.0 (...) and (...) are (...) If you have a part which references a subpart which references another subpart (not likely, true), you don't want to shrink (...) (26 years ago, 12-Oct-00, to lugnet.cad.dev)
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Message is in Reply To:
| | Re: Seams like a problem
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| "Lars C. Hassing" <lch@ccieurope.com> wrote in message news:971175476.80878....cci.dk... (...) contained (...) there (...) one (...) to take these things into account. I'm probably going to take rule 2 and recursively apply it up the line to verify (...) (26 years ago, 11-Oct-00, to lugnet.cad.dev)
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