Subject:
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Re: Ring-r.dat primitives ?
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Newsgroups:
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lugnet.cad
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Date:
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Fri, 26 Jan 2001 14:58:53 GMT
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Viewed:
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474 times
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In lugnet.cad, Henrik Ewald writes:
>
> I need some help understanding the Ring-r.dat primitives:
> What does "1 16 0 0 0 2 0 0 0 1 0 0 0 2 ring3.dat" mean?
> Is it a ring with (radius 3 and ring-width 1) x 2,
> thus giving a ring with radius 6 and ring-width 2?
In short, yes.
The "ring-N.dat" primitive has an Inner Radius of (N)
and an Outer Radius of (N+1). Thus, the primitive "ring-3.dat"
has an Inner Radius of 3 and an Outer Radius of 4.
By doubling the X and Z rows of the rotation matrix,
you double the ring (while maintaining its circular shape).
Note that if you had doubled _just_ the X row, you would have
made this an Oval-shaped ring whose Major Axis was along the X-axis.
Hope this helps! ;-)
Franklin
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Message has 1 Reply:
Message is in Reply To:
 | | Ring-r.dat primitives ?
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| Hello I need some help understanding the Ring-r.dat primitives: What does "1 16 0 0 0 2 0 0 0 1 0 0 0 2 ring3.dat" mean ? Is it a ring with (radius 3 and ring-width 1)x 2, thus giving a ring with radius 6 and ring-width 2 ? Thanks Henrik (24 years ago, 26-Jan-01, to lugnet.cad)
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