Subject:
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New Primitive Class
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Newsgroups:
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lugnet.cad.dat.parts
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Date:
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Sat, 22 Mar 2003 15:08:13 GMT
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Viewed:
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905 times
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Actually, it's not a new primitive, but it doesn't fit under the current
naming scheme.
My current 33089 (in PT) is a rather bulky file (55KB), so to streamline it,
I decided to make a few new primitives. One of these was a torus with major
radius 1 and minor radius 1.
Under the current naming scheme, this primitive would be named:
t04o10000.dat
which is not in 8.3 format.
I'm tempted to name this file t04ounit.dat. I'd make it a subpart, but it's
a true primitive, and I can see it being used in the future (probably could
be used in modelling helmets with flat tops, such as Boba Fett's and the
Stormtrooper's).
The other possibilty is to come up with a naming scheme for those tori with
minor radii larger than their major radii. I'd call these inverted tori, as
the minor/major ratio is inverted. Thus, using a similar naming scheme,
we'd have
iFFXRRRR.dat
where FF is the sweep as before
X is o,i, or q as before
and RRRR is the major/minor ratio (the inverse of the regular torus ratio)
thus, for a maj=1 min=1, 1/4 outer torus (the one I made)
i04o1000.dat
for a maj=1, min =2, 1/4 outer
i04o0500.dat
and so on.
Another possibilty is
iFFXRRDD.dat
where RR.DD is the minor axis length to 2 decimal place precision
thus, the torus I made is now:
i04o0100.dat
or similarly
iFFXRDDD
now with 3 decimal place precision, but you now can't make tori with min/maj
ratios >=10
There are many more options, but these are the two I came up with that
seemed reasonable. My personal preference is for the third (can easily
distinguish btw 1/1.133 and 1/1.125) Any thoughts?
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Message has 2 Replies:
 | | Re: New Primitive Class
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| (...) You might be surprised at how close t04o9999.dat would come. I can't see that it's any worse than the current t04o3333.dat file. Actually, I think I'm going to modify LDView to recognize nnnn in the minor fraction (where n is 0-9) to be (...) (21 years ago, 22-Mar-03, to lugnet.cad.dat.parts)
| | | Re: New Primitive Class
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| (...) When Steve and I were working on the format for the torii, I believe we said we would deal with this issue when it arose. Now it has. (...) The spreadsheet I made to create p/16 and p/48 torii also included support for this occurance. (...) (21 years ago, 23-Mar-03, to lugnet.cad.dat.parts)
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