POV-Ray : Newsgroups : povray.binaries.images : vrotate example from p.general : Re: vrotate example from p.general Server Time
29 Jul 2024 22:28:34 EDT (-0400)
  Re: vrotate example from p.general  
From: clipka
Date: 17 Aug 2013 05:29:40
Message: <520f4284@news.povray.org>
Am 17.08.2013 02:34, schrieb Bald Eagle:

> I wouldn't say that the documentation is "clear", although it does say exactly
> what vrotate() does.  It just takes reading it 3 or 4 times to get it.
> I hate that an <x,y,z> coordinate is referred to as a "vector".
>
> To me, vector is a magnitude with a direction.  I suppose if you're looking at
> it from the perspective of moving _from_ the origin to that point, then yes, but
> in my mind, it's JUST a point.

You'd be surprised at the multitude of different things that 
mathematicians call vectors ;-)

As a matter of fact, what you call "just a point" is called the 
"location vector" of a point (while the other flavor of vector is called 
a "direction vector").


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