candlescaled.C

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/// \file
/// \ingroup tutorial_hist
/// \notebook
/// Candle Scaled, illustrates what scaling does on candle and violin charts.
/// Please try to modify the static functions SetScaledCandle and SetScaledViolin
///
/// \macro_image
/// \macro_code
///
/// \author Georg Troska
 
void candlescaled()
{
   TCanvas *c1 = new TCanvas("c1","TCandle Scaled",800,600);
   c1->Divide(2,2);
   TRandom *rng = new TRandom();
   TH2I *h1 = new TH2I("h1","GausXY",20,-5,5,100,-5,5);
   TH2I *h3 = new TH2I("h3","GausXY",100,-5,5,20,-5,5);
 
   float myRand1;
   float myRand2;
 
   for (int j = 0; j < 100000; j++) {
      myRand1 = rng->Gaus(0,1);
      myRand2 = rng->Gaus(0,1);
      h1->Fill(myRand1, myRand2);
      h3->Fill(myRand1, myRand2);
   }
 
 
   c1->cd(1);
 
   TCandle::SetScaledCandle(true); /* This is a global option for all existing candles, default is false */
 
   h1->SetTitle("CandleX scaled");
   h1->DrawCopy("candleX2");
   c1->cd(2);
 
   h3->SetTitle("CandleY scaled");
   h3->DrawCopy("candleY2");
 
   TCandle::SetScaledViolin(true); /* This is a global option for all existing violin, default is true */
   TH2I *h2 = (TH2I*)h1->Clone();
   h2->SetFillStyle(0);
   h2->SetFillColor(kGray+2);
   h2->SetLineColor(kBlue);
   TH2I *h4 = (TH2I*)h3->Clone();
   h4->SetFillStyle(0);
   h4->SetFillColor(kGray+2);
   h4->SetLineColor(kBlue);
 
   c1->cd(3);
   h2->SetTitle("ViolinX unscaled");
   h2->DrawCopy("ViolinX");
   c1->cd(4);
   h4->SetTitle("ViolinY unscaled");
   h4->DrawCopy("ViolinY");
 
 
}