see examples of color tables at : http://root.cern.ch/root/htmldoc/src/TStyle.cxx.html#TStyle:SetPalette Rene Brun Chris Milne wrote: > > Hi there, > > Can anyone help, I was interested in the below message and have used it myself, > however I am more interested in 100 colours than 100 shades of grey. Can someone > tell me what alteration is needed > > Thanks > Chris Milne > > >Hi Adam, > > > >//example of new colors (greys) and definition of a new palette > >void palette() { > > const Int_t colNum = 100; > > Int_t palette[colNum]; > > for (Int_t i=0;i<colNum;i++) { > > TColor *color = new TColor(501+i > > ,1-Float_t(i)/colNum > > ,1-Float_t(i)/colNum > > ,1-Float_t(i)/colNum,""); > > palette[i] = 501+i; > > } > > gStyle->SetPalette(colNum,palette); > > > > TF2 *f2 = new TF2("f2","exp(-(x^2) - (y^2))",-1.5,1.5,-1.5,1.5); > > f2->SetContour(colNum); > > f2->Draw("contz"); > >} > > > >Rene Brun > > > >On Mon, 13 Aug 2001, Adam Bouchta wrote: > > > > > >> Hello, > >> > >> I wonder how one can expand the number of gray-levels in the palette? For > >> the moment I just limit the number of colors to 9 and get that number of > >> grays. How can one get 100 or so levels? > >> > >> Thanks, > >> > >> Adam. > >>
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