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MathGroup Archive 2007

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Re: Slow work of some List functions in Mathematica 6

  • To: mathgroup at smc.vnet.net
  • Subject: [mg77240] Re: Slow work of some List functions in Mathematica 6
  • From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
  • Date: Wed, 6 Jun 2007 06:50:59 -0400 (EDT)
  • Organization: Uni Leipzig
  • References: <f36dhc$74s$1@smc.vnet.net> <f43i3t$3j6$1@smc.vnet.net>
  • Reply-to: kuska at informatik.uni-leipzig.de

Hi,

but for ArrayPlot[] one has to reverse the image array and to revert
the color function to GrayLevel[] ..

Regards
   Jens

ucervan at gmail.com wrote:
> For discrete data, as in image processing, the most optimal way is to
> either use ArrayPlot[] or Raster[]. For continuous data, and if you do
> not care about using Interpolation, arbitrary MeshFunctions,
> RegionFunction, etc, use ListPlot3D[data,MaxPlotPoints-
>> Infinity,PerformanceGoal->"Speed"], the MaxPlotPoints->Infinity will
> use all your data, the default value of MaxPlotPoints will downsample.
> 
> Also, notice that the visualization functions ListXXX  are vertex
> based, which means that you will not get the discreet steps that V5.X
> used to produce.
> 
> 
> -Ulises Cervantes
> WRI
> 
> 
> 


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