POV-Ray : Newsgroups : povray.newusers : Help - very difficult when it should be easy : Re: Help - very difficult when it should be easy Server Time
29 Apr 2024 18:09:05 EDT (-0400)
  Re: Help - very difficult when it should be easy  
From: clipka
Date: 21 Nov 2016 13:41:40
Message: <58333fe4$1@news.povray.org>
Am 21.11.2016 um 18:43 schrieb Cousin Ricky:
> "Tor Olav Kristensen" <tor### [at] TOBEREMOVEDgmailcom> wrote:
>> No, points and vectors are not the same thing:
>>
>> - You can add a vector to a vector and get a vector
>> - You can subtract a vector from a vector and get a vector
>> - You can subtract a point from a point and get a vector
>> - You can add a vector to a point and get a point
>> - You can subtract a vector from a point and get a point
>> - But you can not add a point to a point
> 
> Whoa, you have a point (no pun intended), but this will throw a monkey wrench
> into my Hungarian-like notation.  ('p' is already taken by pigment.)

Maybe it helps that "points" can also be referred to as "location
vectors", in that they specify the vector between the coordinate origin
and the point in question.


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