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 | | Whither Terry Keller?
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| Hey all, Does anyone know Terry's status? Is he on vacation, caught up in Real World issues, is he okay? Cheers, - jsproat [f-ups set to lugnet.people -- posted off-topic in .cad.dev to catch attention which I know I'll get flack for...] (25 years ago, 21-Oct-99, to lugnet.cad.dev)
| | | | | Re: Line in the Sand
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| (...) Much better than I used to be. Steve "Never trust anything that can think for itself, if you can't see where it keeps its brain." (25 years ago, 21-Oct-99, to lugnet.cad.dev)
| | | | | Re: Line in the Sand
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| On Thu, 21 Oct 1999 01:07:30 GMT, "Gary Williams" <graywolf@pcpros.net> wrote: [clipped good stuff] (...) You are making sense, it is a valid issue, I've been missing the boat on inversion for awhile now, and I'll update the document. Should there (...) (25 years ago, 21-Oct-99, to lugnet.cad.dev)
| | | | | Re: Line in the Sand
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| (...) Sometimes, life just sucks. ;) Have a great weekend! (...) OK. (...) Both of these. (0 CERTIFY with no tags would be a syntax error, IMO.) (...) Define necessary. ;) CERTIFY is not absolutely required, but it is logical and useful. The other (...) (25 years ago, 21-Oct-99, to lugnet.cad.dev)
| | | | | Re: Line in the Sand
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| The proposal has been updated, with changes from Lars and Gary, some additional definitions, and a new section of parts guidelines. See it at (URL). The revision marks (along the left margin) will be maintained until we've got a final document, (...) (25 years ago, 21-Oct-99, to lugnet.cad.dev)
| | | | | Re: Line in the Sand
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| (...) Yes. How are you on travel? :-) (25 years ago, 21-Oct-99, to lugnet.cad.dev)
| | | | | Re: Several replies to CLIPPING / WINDING
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| (...) Sorry, you are right here. I allways think in some form of winding (CW or CCW) so this one slipped me, once again sorry, you are right. Can't assume nothing. (...) what I said was relative to my way of thinking, without the previous sentence, (...) (25 years ago, 21-Oct-99, to lugnet.cad.dev)
| | | | | Re: Line in the Sand
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| (...) Thanks. (blushing) Can that be translated into paying work? (...) That's because it's written by someone who keeps the matrix-math reference material very close at hand whenever he's got to actually go under the hood. (...) Issue 1: should the (...) (25 years ago, 21-Oct-99, to lugnet.cad.dev)
| | | | | Re: Object Orientation & DAT files & CLIPPING/WINDING
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| (...) You are right. Or more precisely, I was wrong. Matrix-based *inversions* are not required. But matrix-based mirrorings will be necessary, for asymmetric primitives, like 1-4cyls.dat. (...) I was thinking about some approach that would map (...) (25 years ago, 21-Oct-99, to lugnet.cad.dev)
| | | | | Re: Line in the Sand
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| Gary Williams wrote in message ... (...) a (...) Well, what I meant to say is: Matrices with negative determinants may be used for mirroring a part, BUT the matrix should never be assumed to perform the actual inversion. If a matrix has a negative (...) (25 years ago, 21-Oct-99, to lugnet.cad.dev)
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