POV-Ray : Newsgroups : povray.general : Re: (X <= D) is not equal ((X<D) | (X=D)) : Re: (X <= D) is not equal ((X<D) | (X=D)) Server Time
9 Aug 2024 23:23:38 EDT (-0400)
  Re: (X <= D) is not equal ((X<D) | (X=D))  
From: Peter J  Holzer
Date: 26 Apr 2000 20:02:46
Message: <slrn8ges1k.5na.hjp-usenet@teal.h.hjp.at>
On 26 Apr 2000 04:56:55 -0400, Warp wrote:
>  This means, for example, that if you are modelling the solar system
>with accurate distances and using 1 povray unit as 1 meter, and then
>you sloooowly rotate the Earth around the Sun, it will most probably
>move in jumps.

Yes. But the jumps will be almost exactly the same size (in real world
coordinates) whether you use a povray unit of 1 meter or of 1E6 km.
In the first case, the radius of the earth orbit will be about
149.6E9 pov units, and the earth could only move in jumps of 0.00003 pov
units. In the second case the radius would be 149.6 pov units, and the
jump size would be 3e-14 pov units. In both cases that translates to


In fact, because of the non-scaling fuzzy equality operator, you could
distinguish between two adjacent positions in the first case, but not in
the latter.

	hp


-- 
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| |   | hjp### [at] wsracat      |    -- Ale### [at] univieacat
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