Re: Conditional Plotting
- To: mathgroup at smc.vnet.net
- Subject: [mg85368] Re: Conditional Plotting
- From: Szabolcs Horvát <szhorvat at gmail.com>
- Date: Thu, 7 Feb 2008 06:33:21 -0500 (EST)
- References: <foeknc$iae$1@smc.vnet.net>
luko wrote:
> New to Mathematica..
> I would like to plot a function of x and y similar to a DensityPlot, but filled (black) if f(x,y)>0, and not filled for f(x,y)<0.
> I use Mathematica 4.2.
Hi,
You have two choices. Either use the ColorFunction option (something
like DensityPlot[f[x,y], {x,-1,1}, {y,-1,1}, ColorFunction ->
(If[#>0,Black,White]&), ColorFunctionScaling->False]), or transform you
function so that it returns only two values:
DensityPlot[UnitStep@f[x,y], {x,-1,1}, {y,-1,1}]