Re: same color above a treshold
- To: mathgroup at smc.vnet.net
- Subject: [mg87099] Re: same color above a treshold
- From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
- Date: Mon, 31 Mar 2008 04:52:26 -0500 (EST)
- Organization: Uni Leipzig
- References: <fsq2er$grm$1@smc.vnet.net>
- Reply-to: kuska at informatik.uni-leipzig.de
Hi,
ContourPlot[x*Exp[-x^2 - y^2], {x, -2, 2}, {y, -2, 2},
PlotRange -> All, ColorFunctionScaling -> False,
ColorFunction -> (If[Abs[#] > 0.25, RGBColor[1, 0, 0],
RGBColor[0, 2 # + 1, 0]] &)]
for z-values < 1/4
Regards
Jens
Luigi B wrote:
> Dear all,
> in ArrayPlot or ContourPlot, I need to color the points exceeding a
> certain treshold with the same color (say red).
> I guess that could be done defining an appropriate ColorFunction...
> but I cannot work it out.
> Could anyone help me?
>
> Thanks
> Luigi
>