1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
18 Revision 1.7 2000/11/30 07:12:50 alibrary
19 Introducing new Rndm and QA classes
21 Revision 1.6 2000/10/02 21:28:06 fca
22 Removal of useless dependecies via forward declarations
24 Revision 1.5 2000/06/09 20:37:20 morsch
25 All coding rule violations except RS3 corrected
27 Revision 1.4 1999/11/03 17:43:20 fca
28 New version from G.Martinez & A.Morsch
30 Revision 1.3 1999/09/29 09:24:14 fca
31 Introduction of the Copyright and cvs Log
35 #include "AliGenScan.h"
40 AliGenScan::AliGenScan()
58 AliGenScan::AliGenScan(Int_t npart)
73 //____________________________________________________________
74 AliGenScan::~AliGenScan()
79 void AliGenScan::SetRange(Int_t nx, Float_t xmin, Float_t xmax,
80 Int_t ny, Float_t ymin, Float_t ymax,
81 Int_t nz, Float_t zmin, Float_t zmax)
95 //____________________________________________________________
96 void AliGenScan::Generate()
99 // Generate one trigger
102 Float_t polar[3]= {0,0,0};
107 Float_t pmom, theta, phi;
114 dx=(fXCmax-fXCmin)/fNx;
120 dy=(fYCmax-fYCmin)/fNy;
126 dz=(fZmax-fZmin)/fNz;
130 for (Int_t ix=0; ix<fNx; ix++) {
131 for (Int_t iy=0; iy<fNy; iy++) {
132 for (Int_t iz=0; iz<fNz; iz++){
134 origin[0]=fXCmin+ix*dx+2*(random[0]-0.5)*fOsigma[0];
135 origin[1]=fYCmin+iy*dy+2*(random[1]-0.5)*fOsigma[1];
136 origin[2]=fZmin+iz*dz+2*(random[2]-0.5)*fOsigma[2];
137 pmom=fPMin+random[3]*(fPMax-fPMin);
138 theta=fThetaMin+random[4]*(fThetaMax-fThetaMin);
139 phi=fPhiMin+random[5]*(fPhiMax-fPhiMin);
140 p[0] = pmom*TMath::Cos(phi)*TMath::Sin(theta);
141 p[1] = pmom*TMath::Sin(phi)*TMath::Sin(theta);
142 p[2] = pmom*TMath::Cos(theta);
143 gAlice->SetTrack(fTrackIt,-1,fIpart,p,origin,polar,0,kPPrimary,nt);