POV-Ray : Newsgroups : povray.newusers : Random positioning Server Time
5 Sep 2024 04:15:14 EDT (-0400)
  Random positioning (Message 1 to 3 of 3)  
From: Les Patterson
Subject: Random positioning
Date: 29 Jan 2002 10:48:19
Message: <3C56E10B.7030309@txcyber.com>
Hi All,
  Can someone give me an example of how "random" would be used in order 
to position several instances of the same object on a plane? I know how 
to get multiple objects by copying/pasting code, and how to use union, 
but I'm sure random would be faster and easier.
Thanks for any help,
Les


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From: Warp
Subject: Re: Random positioning
Date: 29 Jan 2002 10:58:41
Message: <3c56c6b1@news.povray.org>
#declare ObjectsAmount = 100;
#declare MinX = -20;
#declare MaxX = 20;
#declare MinZ = -20;
#declare MaxZ = 20;

#declare S = seed(0);
#declare Ind = 0;
#while(Ind < ObjectsAmount)
  object
  { MyObject
    translate <MinX+rand(S)*(MaxX-MinX), 0, MinZ+rand(S)*(MaxZ-MinZ)>
  }
  #declare Ind = Ind+1;
#end

-- 
#macro M(A,N,D,L)plane{-z,-9pigment{mandel L*9translate N color_map{[0rgb x]
[1rgb 9]}scale<D,D*3D>*1e3}rotate y*A*8}#end M(-3<1.206434.28623>70,7)M(
-1<.7438.1795>1,20)M(1<.77595.13699>30,20)M(3<.75923.07145>80,99)// - Warp -


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From: Les Patterson
Subject: Re: Random positioning
Date: 29 Jan 2002 11:14:39
Message: <3C56E737.2070903@txcyber.com>
Warp,
  Thanks a million.
Les

Warp wrote:

> #declare ObjectsAmount = 100;
> #declare MinX = -20;
> #declare MaxX = 20;
> #declare MinZ = -20;
> #declare MaxZ = 20;
> 
> #declare S = seed(0);
> #declare Ind = 0;
> #while(Ind < ObjectsAmount)
>   object
>   { MyObject
>     translate <MinX+rand(S)*(MaxX-MinX), 0, MinZ+rand(S)*(MaxZ-MinZ)>
>   }
>   #declare Ind = Ind+1;
> #end


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