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MathGroup Archive 2004

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Re: ListPlot3D with holes

  • To: mathgroup at smc.vnet.net
  • Subject: [mg51044] Re: ListPlot3D with holes
  • From: philippe.morel at ezct.net (Philippe)
  • Date: Sat, 2 Oct 2004 03:18:52 -0400 (EDT)
  • References: <upz5nkdj6zon@legacy>
  • Sender: owner-wri-mathgroup at wolfram.com

Fill thos holes with values in a table for which you know the position
(like in a 0/1 matrix).
then, plot the result but give a different option to the values
corresponding to the future holes. For that you can convert your plot
called for example "myPlot=ListPlot3D[...]" with Graphics[myPlot].
Then type InputForm[%].
You should obtain the internal structure of the graphic.
Then, by knowing the position of your holes data and by understanding
the correspondance between polygon and your data, use some replacement
rules to keep only the part of the geometry you are interested in.
philippe



On 26 Apr 04 08:31:22 -0400 (EDT), Holger Linde wrote:
>Hello,
>I've plotted a two dimensional list with ListPlot3D, but now I've run
>into trouble because for parts of this list, no values exist.
(Imagine
>that the list values are gained from an equation system, and in some
>cases, no solution exists). I.e., the definition domain is not
>continuous, but has 'holes'. My goal is to retrieve a 3D plot where
>these points are left out. Any ideas?
>
>Regards,
>Holger


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