MathGroup Archive 2007

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

Search the Archive

Re: rescale gray levels with ListDensityPlot


Benoit Scheid wrote:
> Hi,
> I have a two-dimensional list of data with positive and negative values.
> I'm using ListDensityPlot and ListCoutourPlot.
> By defaullt, the range of gray levels codes the range of z-values from
> -z_min (black) to z_max (white).
> I would like to have the zero gray level (black) for z=0 and the maximum
> gray level (white) for z=|zmax|. At the same time, I would like to use
> two different colors to discriminate between positive and
> negative values. Is that possible?
> Thanks,
> Ben
> 
> 

The option *ColorFunction* is what you are looking for. See
http://documents.wolfram.com/mathematica/functions/ColorFunction

Regards,
Jean-Marc


  • Prev by Date: Re: How to choose real positive solutions only?
  • Next by Date: special projects ad
  • Previous by thread: Re: rescale gray levels with ListDensityPlot
  • Next by thread: Re: rescale gray levels with ListDensityPlot