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- From: dbriggs@zia.aoc.nrao.edu (Daniel Briggs)
- Subject: Re: INTERNATIONAL FREESTYLE C
- Message-ID: <1992Nov16.213640.16545@zia.aoc.nrao.edu>
- Organization: National Radio Astronomy Observatory, Socorro NM
- References: <138.45.uupcb@compdyn.questor.wimsey.bc.ca>
- Date: Mon, 16 Nov 92 21:36:40 GMT
- Lines: 20
-
- In article <138.45.uupcb@compdyn.questor.wimsey.bc.ca>
- robert.wilkins@compdyn.questor.wimsey.bc.ca (Robert Wilkins) writes:
- >Interesting how your cameraman can barrel roll and keep the person in
- >the viewer. I always thought that a barrel roll was a complete 360 along
- >the vertical axis. How does he manage to hold his head in one position
- >while his body turns 360 degrees. BOB!!!
-
- No, wrong axis. The axis of rotation is vertical only when a person is
- standing upright. A better way is to say that the rotation axis is along
- the spine of the cameraman. So there is not a whole lot of head motion
- required to keep the freestylist centered, though of course the whole frame
- spins. (With the freestylist doing their thing against blue sky, it may
- not be so obvious, but with any background in the frame it's quite clear
- what is going on.)
-
- --
- | Daniel Briggs (dbriggs@nrao.edu) | USPA B-14993
- | New Mexico Tech / National Radio Astronomy Observatory | DoD #387
- | P.O. Box O / Socorro, NM 87801 (505) 835-7391 |
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