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Re: Polygon cutter

  • To: mathgroup at smc.vnet.net
  • Subject: [mg88006] Re: Polygon cutter
  • From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
  • Date: Mon, 21 Apr 2008 14:39:05 -0400 (EDT)
  • Organization: Uni Leipzig
  • References: <fueen3$b74$1@smc.vnet.net> <fuhfeo$ikb$1@smc.vnet.net> <fuhqu9$rg6$1@smc.vnet.net>
  • Reply-to: kuska at informatik.uni-leipzig.de

Hi,

a) in version 6.0 ContourPlot[] will work with data in any position
    as to see from
    ListContourPlot[Table[Random[], {5}, {3}]]
b) and for higer finite elements you have to write the correct
    interpolation routine. But it may be sufficient, to
    compute the function on a triangular mesh and feed it into
    ListContourPlot[]

Regards
   Jens

carlos at colorado.edu wrote:
> Well, tell me how ContourPlot can be used for an arbitrary finite element mesh,
> which may have arbitrary geometry, topology and element type combinations,
> when the data is only known at the nodes (or at Gauss points).
> 
> Last I heard, ContourPlot only works for a rectangular region and the function
> must be provided as, well, a function. It has its uses, but not in FEM plotting.
> 


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