]>
Commit | Line | Data |
---|---|---|
df725edf | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
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 | **************************************************************************/ | |
15 | ||
16 | /* | |
17 | $Log$ | |
65fb704d | 18 | Revision 1.3 2000/10/02 21:28:06 fca |
19 | Removal of useless dependecies via forward declarations | |
20 | ||
94de3818 | 21 | Revision 1.2 2000/06/09 20:37:51 morsch |
22 | All coding rule violations except RS3 corrected | |
23 | ||
f87cfe57 | 24 | Revision 1.1 2000/02/23 16:25:14 morsch |
25 | First commit of this file | |
26 | ||
df725edf | 27 | */ |
28 | ||
29 | #include "AliGenDoubleScan.h" | |
df725edf | 30 | #include "AliRun.h" |
f87cfe57 | 31 | |
df725edf | 32 | ClassImp(AliGenDoubleScan) |
33 | ||
34 | AliGenDoubleScan::AliGenDoubleScan() | |
35 | :AliGenScan(-1) | |
36 | { | |
37 | } | |
38 | ||
39 | AliGenDoubleScan::AliGenDoubleScan(Int_t npart) | |
40 | :AliGenScan(npart) | |
41 | { | |
f87cfe57 | 42 | // Constructor |
df725edf | 43 | } |
44 | ||
45 | //____________________________________________________________ | |
46 | AliGenDoubleScan::~AliGenDoubleScan() | |
f87cfe57 | 47 | { |
48 | // Destructor | |
49 | } | |
df725edf | 50 | |
51 | //____________________________________________________________ | |
52 | void AliGenDoubleScan::Generate() | |
53 | { | |
f87cfe57 | 54 | // |
55 | // Generate one trigger | |
56 | // | |
df725edf | 57 | |
f87cfe57 | 58 | Float_t polar[3]= {0,0,0}; |
59 | // | |
60 | Float_t origin[3]; | |
61 | Float_t p[3]; | |
62 | Int_t nt; | |
63 | Float_t pmom, theta, phi; | |
64 | // | |
65 | Float_t random[6]; | |
66 | Float_t dx,dy,dz; | |
67 | ||
68 | // | |
69 | if (fNy > 0) { | |
70 | dx=(fXmax-fXmin)/fNx; | |
71 | } else { | |
72 | dx=1e10; | |
73 | } | |
df725edf | 74 | |
f87cfe57 | 75 | if (fNy > 0) { |
76 | dy=(fYmax-fYmin)/fNy; | |
77 | } else { | |
78 | dy=1e10; | |
79 | } | |
80 | ||
81 | if (fNz > 0) { | |
df725edf | 82 | dz=(fZmax-fZmin)/fNz; |
f87cfe57 | 83 | } else { |
84 | dz=1e10; | |
85 | } | |
86 | for (Int_t ix=0; ix<fNx; ix++) { | |
df725edf | 87 | for (Int_t iy=0; iy<fNy; iy++) { |
88 | for (Int_t iz=0; iz<fNz; iz++){ | |
65fb704d | 89 | Rndm(random,6); |
df725edf | 90 | origin[0]=fXmin+ix*dx+2*(random[0]-0.5)*fOsigma[0]; |
91 | origin[1]=fYmin+iy*dy+2*(random[1]-0.5)*fOsigma[1]; | |
92 | origin[2]=fZmin+iz*dz+2*(random[2]-0.5)*fOsigma[2]; | |
93 | pmom=fPMin+random[3]*(fPMax-fPMin); | |
94 | theta=fThetaMin+random[4]*(fThetaMax-fThetaMin); | |
95 | phi=fPhiMin+random[5]*(fPhiMax-fPhiMin); | |
96 | p[0] = pmom*TMath::Cos(phi)*TMath::Sin(theta); | |
97 | p[1] = pmom*TMath::Sin(phi)*TMath::Sin(theta); | |
98 | p[2] = pmom*TMath::Cos(theta); | |
65fb704d | 99 | gAlice->SetTrack(fTrackIt,-1,fIpart,p,origin,polar,0,kPPrimary,nt); |
df725edf | 100 | // |
101 | // Generate 2nd particle at distance fDistance from the first | |
102 | // | |
65fb704d | 103 | Rndm(random,6); |
df725edf | 104 | Float_t phi2=2.*TMath::Pi()*random[0]; |
105 | Float_t dx =fDistance*TMath::Sin(phi2); | |
106 | Float_t dy =fDistance*TMath::Cos(phi2); | |
107 | origin[0]=origin[0]+dx; | |
108 | origin[1]=origin[1]+dy; | |
109 | pmom=fPMin+random[1]*(fPMax-fPMin); | |
110 | theta=fThetaMin+random[2]*(fThetaMax-fThetaMin); | |
111 | phi=fPhiMin+random[3]*(fPhiMax-fPhiMin); | |
112 | p[0] = pmom*TMath::Cos(phi)*TMath::Sin(theta); | |
113 | p[1] = pmom*TMath::Sin(phi)*TMath::Sin(theta); | |
114 | p[2] = pmom*TMath::Cos(theta); | |
65fb704d | 115 | gAlice->SetTrack(fTrackIt,-1,fIpart,p,origin,polar,0,kPPrimary,nt); |
df725edf | 116 | } |
117 | } | |
118 | } | |
119 | } | |
120 | ||
121 | ||
122 | ||
123 | ||
124 | ||
125 | ||
126 | ||
127 | ||
128 | ||
129 | ||
130 | ||
131 | ||
132 |