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MathGroup Archive 1997

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Re: grid plot

  • To: mathgroup at smc.vnet.net
  • Subject: [mg5817] Re: [mg5777] grid plot
  • From: Robert Pratt <rpratt at math.unc.edu>
  • Date: Wed, 22 Jan 1997 00:44:18 -0500
  • Sender: owner-wri-mathgroup at wolfram.com

Perhaps the following commands, using GridGraph in the standard package 
DiscreteMath`Combinatorica`, will give you what you want:

In[1]:= Needs["DiscreteMath`Combinatorica`"]

In[2]:= G=GridGraph[13,3];

In[3]:= Do[G=DeleteVertex[G,7],{7}]

In[4]:= Do[G=DeleteVertex[G,14],{6}]

In[5]:= labels={u,v,w,x,y,z,n,o,p,q,r,s,t,a,b,c,d,e,f,g,h,i,j,k,l,m};

In[6]:= ShowLabeledGraph[G,labels]

Rob Pratt
Department of Mathematics
The University of North Carolina at Chapel Hill
CB# 3250, 331 Phillips Hall
Chapel Hill, NC  27599-3250

rpratt at math.unc.edu

On Sat, 18 Jan 1997, Hai Q. Nguyen wrote:

> 
> Hello,
> 
> I wonder if it's possible to connect the following pattern
> of points(defined by their x,y,z coordinates) with
> straight lines :
> 
> a  b  c  d  e....m
> 
> n  o  p  q  r....t
> 
> u  v  w  x  y....z
> 
> Point "o" for example will have 4 straight lines connecting
> it to neighboring points n,b,p, and v. Boundary points
> like point "a" will have 2 lines connecting to "b" and "n".
> 
> Does anybody know how to di this inside Mathematica?
> Thanks in advance .
> 
> Hai Nguyen
> 
> 


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