void AliTPCCreatePRFGEM() { //create prf //with given parameters TFile *f=TFile::Open("AliTPCprf2dGEM.root","recreate"); AliTPCPRF2D prf; prf.SetPad(0.4,0.75); prf.SetChevron(0.75,0,0); prf.SetGauss(0.025,0.0251,1 ); prf.SetY(-0.36,0.35,50); prf.Update(); prf.DrawPRF(-1,1,-1,1,50,50); prf.Write("prf0"); prf.SetPad(0.6,1.); prf.SetChevron(1.,0,0); prf.SetGauss(0.025,0.0251,1 ); prf.SetY(-0.5,0.5,50); prf.Update(); prf.Write("prf1"); prf.SetPad(0.6,1.5); prf.SetChevron(1.5,0,0); prf.SetGauss(0.025,0.025,1 ); prf.SetY(-0.75,0.75,50); prf.Update(); prf.Write("prf2"); f->Close(); }