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MathGroup Archive 2002

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Closed Polygons from List

  • To: mathgroup at smc.vnet.net
  • Subject: [mg33834] Closed Polygons from List
  • From: Moranresearch at aol.com
  • Date: Fri, 19 Apr 2002 02:28:20 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

I have a set of 8 {x,y} point:
l1={{-4,-10},{-4,0},{-0.5,-10},{-0.5,0},{0.5,-10.5},{0.5,-0.5},{4,-14},{4,-4}}


I wish to :
1. make a listplot with JoinedPlot -> True such that no line segments cross 
to produce a single closed polygon.
2. make a listplot with JoinedPlot -> True  such that no line segments cross  
to produce a two closed polygon by imposing the conditions to generate two 
sets x < 0 and x>0.
I need this to be ageneral solution not just for l1 above.
Thank you.


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