MathGroup Archive 2004

[Date Index] [Thread Index] [Author Index]

Search the Archive

ListContourPlot and missing data

  • To: mathgroup at
  • Subject: [mg48644] ListContourPlot and missing data
  • From: Gareth Owen <usenet at>
  • Date: Wed, 9 Jun 2004 04:17:07 -0400 (EDT)
  • Sender: owner-wri-mathgroup at

I've a rectangular array containing numerical data as some entries, and
Null in other entries (which represent
the boundaries and solid regions of an irregularly shaped fluid flow domain.

For a rectangular domain (with no Nulls) 
I plot my scalar field data (temperature), with

          Contours->20, ColorFunction->(RGBColor[1-#,0,#] &)]

which shades the warm areas red, and the cold areas blue. Is there some way I
can plot the irregular data, with the Null elements coloured black.  

Obviously, the Nulls could easily be replaced by anything else.

  • Prev by Date: Basic conditional statement question.
  • Next by Date: Re: Combining plots
  • Previous by thread: Re: Basic conditional statement question.
  • Next by thread: RE: ListContourPlot and missing data