Hi, I have a problem with setting the number of palette colors when the "colz" option is used with TH2. In the past, the following code set 32 colors but now only 20 colors are displayed on the color bar. // A palette problem { const Int_t colNum = 32; TH2S *h = new TH2S("h", "h", 10, 1, colNum, 10, 1, colNum); Int_t palette[colNum]; for (Int_t i=0;i<colNum;i++) { TColor *color = new TColor(301+i, pow(i/((colNum)*1.0),0.3), pow(i/((colNum)*1.0),0.3), 0.5*(i/((colNum)*1.0)),""); palette[i] = 301+i; } h->SetMinimum(1); h->SetMaximum(colNum); gStyle->SetPalette(colNum,palette); h->Draw("colz"); } I need 58 colors to distinguish tissues in some low resolution medical images. How can I do it? -- Alexandr.Malusek@imv.liu.se
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