Re: ContourPlot
- Subject: [mg3406] Re: [mg3387] ContourPlot
- From: mathes at esaab.math.missouri.edu (Elias Saab)
- Date: 4 Mar 1996 10:12:59 -0600
- Approved: usenet@wri.com
- Distribution: local
- Newsgroups: wri.mathgroup
- Organization: Wolfram Research, Inc.
- Sender: daemon at wri.com
I found an answer to my question below. The following code will do it. Clear[colorfun] colorfun[z_]:= If[z ==0,RGBColor[1,0,0], RGBColor[1,1,1]]; ContourPlot[x^2+y^2 -1,{x,-2,2},{y,-2,2}, ColorFunction->colorfun, Contours->{0}]; On Sun, 3 Mar 1996, Elias Saab wrote: > > My question is the following: > The code below > > ContourPlot[x^2 + y^2 -1,{x,-1,1},{y,-1,1}, > Contours->{0}] > > will produce a filled black circle. > > What options one has to add to produce a filled Red Circle for example? > > The following code > > ContourPlot[x^2 + y^2 -1,{x,-1,1},{y,-1,1}, > Contours->{0},ColorFunction->Hue] > > will make the inside and the outside of the circle Red. > > > Any help is appreciated. > Thanks > Elias Saab > > >