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MathGroup Archive 2003

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Re: Bug in ColorFunctionScaling ???

  • To: mathgroup at smc.vnet.net
  • Subject: [mg39399] Re: Bug in ColorFunctionScaling ???
  • From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
  • Date: Fri, 14 Feb 2003 03:18:01 -0500 (EST)
  • Organization: Universitaet Leipzig
  • References: <b2fqud$k9q$1@smc.vnet.net>
  • Reply-to: kuska at informatik.uni-leipzig.de
  • Sender: owner-wri-mathgroup at wolfram.com

Hi,

and you don't like

ListDensityPlot[matrix,PlotRange->All]

and you don't like

ListPlot3D[matrix,PlotRange->All]

Regards
  Jens

Cesar Guerra wrote:
> 
> Hi math group
> 
> working with the matrix given at the end of this mail I had troubles trying to visualize it. For instance
> 
> ListDensityPlot[matrix]
> 
> works too bad as can be seen using a 3D chart
> 
> <<Graphics`Graphics3D`
> 
> BarChart3D[matrix]
> 
> I got the correct density plot when I scaled the matrix elements by hand:
> 
> min = Min[matrix];
> 
> max = Max[matrix];
> 
> ListDensityPlot[matrix,ColorFunctionScaling->False,ColorFunction->(GrayLevel[(#-min)/(max-min)]&)];
> 
> The question: is it a bug or I lost something in the way? A similar problem arises with many matrices that I generated in which there are many numbres close to zero.
> 
> Regards.. Cesar,
> 
> Well here is the matrix. Sorry because of the horrible format


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