Subject:
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Re: Cone primitives
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Newsgroups:
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lugnet.cad.dev
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Date:
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Fri, 14 May 1999 00:46:34 GMT
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Viewed:
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789 times
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In lugnet.cad.dev, John VanZwieten writes:
> See above for naming of cones. I'm pretty sure the current primitives are
> sufficient to suit your needs. Check out Steve Bliss' cone spreadsheet
> mentioned in this thread. If you still can't figure it out from that, post • the
> inner and outer radii and depth for the cones you need, and I'll work on it
> when I get a chance.
Ok, I'm just about done with this part... but the hangup is the final section
of conical canopy at the nose. This cone goes from a radius of 20 to a radius
of 1.943 in a Y-scale of 12.243.
I've tried Steve's spreadsheet, and it really doesn't seem to handle such a
severe reduction well. By the numbers it gave me it looks like I would have to
build that little piece of surface out of more than 10 cone pieces (for each
outer and inner surfaces).
Since the actual tip is going to end up faceted anyway (as per Steve's advice:
see other thread), I wonder if it's just not worth the trouble to try to use
primitives on this bit of the part.
I could make a cone primitive to fit this, but I was trying to figure out how
to fit it into the convention for previous cone primitives... it looks like it
would be something like "Cone0.058" :-) not quite a reasonable primitive, huh?
anyway, as always, advice is appreciated.
--Karim
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Message has 1 Reply:
 | | Re: Cone primitives [DAT]
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| Karim <knassar@mindspring.com> wrote in message news:FBp65M.C8D@lugnet.com... (...) radius (...) to (...) advice: (...) it (...) huh? (...) Using your 1-4con1.dat, here's the cone you requested: 1 16 0 1.317 0 1.943 0 0 0 1.317 0 0 0 1.943 (...) (25 years ago, 14-May-99, to lugnet.cad.dev)
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Message is in Reply To:
| | Re: Cone primitives
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| (...) without (...) too, (...) The 3 refers to the inner radius of the cone. All cone primitives (like ring primitives) are made with an outer radius which is 1 LDU greater than the inner radius. So a con3.dat would have inner-radius 3 and outer (...) (25 years ago, 12-May-99, to lugnet.cad.dev)
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