Palette coloring for graphs 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 TGraph::Draw
the TGraph
get its color
from the current color palette defined by gStyle->SetPalette(...)
. The color
is determined according to the number of objects having palette coloring in
the current pad.
In this example five graphs are displayed with palette coloring for lines and
and filled area. The graphs are drawn with curves (C
option) and one can see
the color of each graph is picked inside the palette kSolar
. The
same is visible on filled polygons in the automatically built legend.
Author: Olivier Couet
This notebook tutorial was automatically generated with ROOTBOOK-izer from the macro found in the ROOT repository on Wednesday, April 17, 2024 at 11:11 AM.
gStyle->SetOptTitle(kFALSE);
gStyle->SetPalette(kSolar);
double x[5] = {1,2,3,4,5};
double y1[5] = {1.0,2.0,1.0,2.5,3.0};
double y2[5] = {1.1,2.1,1.1,2.6,3.1};
double y3[5] = {1.2,2.2,1.2,2.7,3.2};
double y4[5] = {1.3,2.3,1.3,2.8,3.3};
double y5[5] = {1.4,2.4,1.4,2.9,3.4};
TGraph *g1 = new TGraph(5,x,y1); g1->SetTitle("Graph with a red star");
TGraph *g2 = new TGraph(5,x,y2); g2->SetTitle("Graph with a circular marker");
TGraph *g3 = new TGraph(5,x,y3); g3->SetTitle("Graph with an open square marker");
TGraph *g4 = new TGraph(5,x,y4); g4->SetTitle("Graph with a blue star");
TGraph *g5 = new TGraph(5,x,y5); g5->SetTitle("Graph with a full square marker");
g1->SetLineWidth(3); g1->SetMarkerColor(kRed);
g2->SetLineWidth(3); g2->SetMarkerStyle(kCircle);
g3->SetLineWidth(3); g3->SetMarkerStyle(kOpenSquare);
g4->SetLineWidth(3); g4->SetMarkerColor(kBlue);
g5->SetLineWidth(3); g5->SetMarkerStyle(kFullSquare);
g1->Draw("CA* PLC PFC");
g2->Draw("PC PLC PFC");
g3->Draw("PC PLC PFC");
g4->Draw("*C PLC PFC");
g5->Draw("PC PLC PFC");
gPad->BuildLegend();
Info in <TCanvas::MakeDefCanvas>: created default TCanvas with name c1
Draw all canvases
gROOT->GetListOfCanvases()->Draw()