Message-ID: <3DFD81B2.9D9C4CC8@statistik.uni-dortmund.de>
Date: 2002-12-16T08:33:04Z
From: Uwe Ligges
Subject: irregual space plot
Jason Fisher wrote:
>
> Hello everyone...
>
> I was hoping an R wizard could help me out with this one. My current R
> programming endeavors require that I generate plots of groundwater state
> variables (e.g. pressure fields, contaminate plumes, etc.) in a 2-D slice of
> a 3-D system. While the functions contour() and filled.contour() are close
> to what I?m looking for, they unfortunately lack in their inability to deal
> with irregular boundaries (non-rectangular systems). The irregular systems
> I?m working with are made up of finite elements (each 2-D element
> constructed from 3 or 4 nodes) where linear basis functions describe every
> point (x,y) in the element. I believe I could deal with my plotting dilemma
> if I had a function very similar to ?.Internal(filledcontour())?. A
> function, which would allow me to specify contours or colors between
> contours within an element. If someone could give me a hand on this project
> or point me towards helpful resources, it would be greatly appreciated.
>
> Regards,
>
> Jason
>
> PS: If any additional information is needed, please ask.
What about setting non-existing points of your system to NA (will result
in "white space") in that matrix you use for filled.contour()?
Uwe