{using ROOT_LEVEL : 2.22.06} I have a 2d histogram that I want to plot using a "pretty spectrum". In the documentation for SetPalette it says: if ncolors == 1 && colors == 0, then a Pretty Palette with a Spectrum Violet->Red is created. It is recommended to use this Pretty palette when drawing legos, surfaces or contours. So I setup a new style [myStyle], set the palette to the "pretty spectrum" and then set the current style to myStyle: TStyle *myStyle = new TStyle("myStyle","my style"); myStyle->SetPalette(1,0); myStyle->cd(); Now I plot my 2d histogram using "colz": MyHistogram.Draw("colz"); The problem is that the palette I get is not the "pretty spectrum" I expect, instead I get only 1 color (light grey). It seems to me that this SetPalette(1,0) isn't being treated as a special case, it is just giving me a grey gradient with 1 color (if I go to SetPalette(2,0) I get two shades of grey in the gradient, as I would expect). How can I get the pretty violet->red spectrum that I crave so badly? --------------------------------------------------------------------- Jeffrey G Reid | jgreid@u.washington.edu | UW Nuclear Physics Lab =====================================================================
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