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thstackpalettecolor.C File Reference

Detailed Description

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Palette coloring for histograms' stack is activated thanks to the options PFC (Palette Fill Color), PLC (Palette Line Color) and AMC (Palette Marker Color).

When one of these options is given to THStack::Draw the histograms in the THStack get their color from the current color palette defined by gStyle->SetPalette(...). The color is determined according to the number of histograms.

In this example four histograms are displayed with palette coloring. The color of each histogram is picked inside the palette kOcean.

void thstackpalettecolor()
auto hs = new THStack("hs","Stacked 1D histograms colored using kOcean palette");
// Create three 1-d histograms and add them in the stack
auto h1st = new TH1F("h1st","test hstack",100,-4,4);
auto h2st = new TH1F("h2st","test hstack",100,-4,4);
auto h3st = new TH1F("h3st","test hstack",100,-4,4);
// draw the stack
hs->Draw("pfc nostack");
@ kOcean
Definition TColor.h:117
R__EXTERN TStyle * gStyle
Definition TStyle.h:433
1-D histogram with a float per channel (see TH1 documentation)
Definition TH1.h:621
The Histogram stack class.
Definition THStack.h:40
void SetPalette(Int_t ncolors=kBird, Int_t *colors=nullptr, Float_t alpha=1.)
See TColor::SetPalette.
Definition TStyle.cxx:1884
Olivier Couet

Definition in file thstackpalettecolor.C.