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Re: Polygon cutter

• To: mathgroup at smc.vnet.net
• Subject: [mg87989] Re: Polygon cutter
• From: Oliver Ruebenkoenig <ruebenko at uni-freiburg.de>
• Date: Mon, 21 Apr 2008 14:35:58 -0400 (EDT)
• References: <fueen3$b74$1@smc.vnet.net> <fuhfeo$ikb$1@smc.vnet.net>

Carlos,

On Mon, 21 Apr 2008, 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).
>

the function

imsUnstructuredContourPlot[ co, inc, val ]

co = coordinates
inc = incidences
val = values at the nodes

which you can get here :

http://www.imtek.uni-freiburg.de/simulation/mathematica/IMSweb/imsTOC/Utlities/Graphics/UnstructuredPlotDocu.html

can do it.

hth,

oliver

> 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.
>
>

Oliver Ruebenkoenig, <ruebenko AT uni-freiburg.de>