Re: ColorFunction Range (Mathematica v7)

*To*: mathgroup at smc.vnet.net*Subject*: [mg99958] Re: ColorFunction Range (Mathematica v7)*From*: dh <dh at metrohm.com>*Date*: Wed, 20 May 2009 04:59:07 -0400 (EDT)*References*: <guu2l8$6d8$1@smc.vnet.net>

Hi Constantinos, try: DensityPlot[f[x, y], {x, 0, 1}, {y, 0, 1}, ColorFunctionScaling -> True] DensityPlot[f[x, y], {x, 0, 1}, {y, 0, 1}, ColorFunctionScaling -> False] In the first case, the color function receives a scaled argument in the range [0,1]. If ColorFunctionScaling -> False, the color function receives the actual value of the function, in our case: [0,2], giving the same color if the value is larger than 1. You can convince yourself by e.g. changing the color function to: ColorFunction -> (Hue[Mod[#, 1]] &) Daniel Constantinos wrote: > Hi All, > > Does anyone know how I can change the "Range" value of a preset > ColorFunction (e.g. "TemperatureMap") in DensityPlot? > > I am facing the following problem: > > Let's say that the min and max values of your plotting function (not the > color one) are fmin and fmax, respectively. Let's also assume that you set > PlotRange->{pmin,pmax}. > If pmax is lower than fmax then the highest valued color (Red) corresponds > to pmax but if pmax is higher than fmax the highest valued color (Red) > corresponds to fmax. Note that we have similar situation for the minimum > values fmin and pmin. > > How can I assign the highest (lowest) valued color of a preser ColorFunction > to the desired value whatever it is. > > > Thanks in advance. > > Constantinos > > > >