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 1.5 2001/02/24 11:41:59 morsch
19 SetGun allows specify completely the particle kinematics and position in one go. (FCA)
21 Revision 1.4 2000/12/21 16:24:06 morsch
22 Coding convention clean-up
24 Revision 1.3 2000/11/30 07:12:50 alibrary
25 Introducing new Rndm and QA classes
27 Revision 1.2 2000/10/02 15:17:54 morsch
28 Unused includes removed.
30 Revision 1.1 2000/06/09 20:24:00 morsch
31 Same class as previously in AliSimpleGen.cxx
32 All coding rule violations except RS3 corrected (AM)
38 // Simple particle gun.
39 // Momentum, phi and theta of the partice as well as the particle type can be set.
40 // andreas.morsch@cern.ch
43 <img src="picts/AliGeneratorClass.gif">
46 <font size=+2 color=red>
47 <p>The responsible person for this module is
48 <a href="mailto:andreas.morsch@cern.ch">Andreas Morsch</a>.
54 ///////////////////////////////////////////////////////////////////
56 #include "AliGenFixed.h"
62 //_____________________________________________________________________________
63 AliGenFixed::AliGenFixed()
67 // Default constructor
73 //_____________________________________________________________________________
74 AliGenFixed::AliGenFixed(Int_t npart)
78 // Standard constructor
81 fTitle="Fixed Particle Generator";
82 // Generate Proton by default
86 //_____________________________________________________________________________
87 void AliGenFixed::Generate()
90 // Generate one trigger
92 Float_t polar[3]= {0,0,0};
94 fP[0] = fPMin*TMath::Cos(fPhiMin)*TMath::Sin(fThetaMin);
95 fP[1] = fPMin*TMath::Sin(fPhiMin)*TMath::Sin(fThetaMin);
96 fP[2] = fPMin*TMath::Cos(fThetaMin);
100 for(i=0;i<fNpart;i++)
101 SetTrack(fTrackIt,-1,fIpart,fP,fOrigin.GetArray(),polar,0,kPPrimary,nt);
105 //_____________________________________________________________________________
106 void AliGenFixed::SetSigma(Float_t sx, Float_t sy, Float_t sz)
109 // Set the interaction point sigma
111 printf("Vertex smearing not implemented for fixed generator\n");