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c5ca52b2 | 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 | ||
acd84897 | 16 | /* $Id$ */ |
c5ca52b2 | 17 | |
116cbefd | 18 | //------------------------------------------------------------------------- |
116cbefd | 19 | // Lego generator in x - y - z bins |
5d8718b8 | 20 | // Uses geantino rays to check the material distributions and detector's |
21 | // geometry | |
22 | // Author: A.Morsch | |
116cbefd | 23 | //------------------------------------------------------------------------- |
24 | ||
c5ca52b2 | 25 | #include "AliLegoGeneratorXYZ.h" |
26 | #include "AliRun.h" | |
27 | ||
28 | ClassImp(AliLegoGeneratorXYZ) | |
29 | ||
30 | ||
31 | //___________________________________________ | |
32 | ||
33 | ||
34 | AliLegoGeneratorXYZ::AliLegoGeneratorXYZ() | |
35 | { | |
36 | // Default Constructor | |
37 | fDir1[0]=1.; fDir1[1]=0.; fDir1[2]=0.; | |
38 | fDir2[0]=0.; fDir2[1]=1.; fDir2[2]=0.; | |
39 | fDir3[0]=0.; fDir3[1]=0.; fDir3[2]=1.; | |
40 | } | |
41 | ||
42 | AliLegoGeneratorXYZ::AliLegoGeneratorXYZ(char* axis) | |
43 | { | |
44 | // Constructor | |
45 | if (!strcmp(axis,"x") || !strcmp(axis,"X")) | |
46 | { | |
47 | fDir1[0]=0.; fDir1[1]=1.; fDir1[2]=0.; | |
48 | fDir2[0]=0.; fDir2[1]=0.; fDir2[2]=1.; | |
49 | fDir3[0]=1.; fDir3[1]=0.; fDir3[2]=0.; | |
50 | } | |
51 | else if (!strcmp(axis,"y") || !strcmp(axis,"Y")) | |
52 | { | |
53 | fDir1[0]=1.; fDir1[1]=0.; fDir1[2]=0.; | |
54 | fDir2[0]=0.; fDir2[1]=0.; fDir2[2]=1; | |
55 | fDir3[0]=0.; fDir3[1]=1.; fDir3[2]=0.; | |
56 | } | |
57 | else if (!strcmp(axis,"z") || !strcmp(axis,"Z")) | |
58 | { | |
59 | fDir1[0]=1.; fDir1[1]=0.; fDir1[2]=0.; | |
60 | fDir2[0]=0.; fDir2[1]=1.; fDir2[2]=0.; | |
61 | fDir3[0]=0.; fDir3[1]=0.; fDir3[2]=1.; | |
62 | } | |
63 | else | |
64 | { | |
65 | fDir1[0]=1.; fDir1[1]=0.; fDir1[2]=0.; | |
66 | fDir2[0]=0.; fDir2[1]=1.; fDir2[2]=0.; | |
67 | fDir3[0]=0.; fDir3[1]=0.; fDir3[2]=1.; | |
68 | } | |
69 | } | |
70 | ||
71 | ||
72 | AliLegoGeneratorXYZ::AliLegoGeneratorXYZ(Int_t nc1, Float_t c1min, | |
73 | Float_t c1max, Int_t nc2, | |
74 | Float_t c2min, Float_t c2max, | |
75 | Float_t rmin, Float_t rmax, Float_t zmax) : | |
76 | AliLegoGenerator(nc1, c1min, c1max, nc2, c2min, c2max, | |
77 | rmin, rmax, zmax) | |
78 | { | |
79 | // Constructor | |
80 | fDir1[0]=1.; fDir1[1]=0.; fDir1[2]=0.; | |
81 | fDir2[0]=0.; fDir2[1]=1.; fDir2[2]=0.; | |
82 | fDir3[0]=0.; fDir3[1]=0.; fDir3[2]=1.; | |
83 | } | |
84 | ||
85 | ||
86 | //___________________________________________ | |
87 | void AliLegoGeneratorXYZ::Generate() | |
88 | { | |
89 | // Create a geantino with kinematics corresponding to the current bins | |
90 | // Here: Coor1 = x | |
91 | // Coor2 = z | |
92 | ||
93 | // | |
94 | // Rootinos are 0 | |
95 | const Int_t kMpart = 0; | |
96 | Float_t orig[3], pmom[3]; | |
97 | ||
98 | // Prepare for next step | |
99 | if(fCoor1Bin>=fNCoor1-1) | |
100 | if(fCoor2Bin>=fNCoor2-1) { | |
101 | Warning("Generate","End of Lego Generation"); | |
102 | return; | |
103 | } else { | |
104 | fCoor2Bin++; | |
105 | printf("Generating rays in Coordinate 2 bin:%d\n",fCoor2Bin); | |
106 | fCoor1Bin=0; | |
107 | } else fCoor1Bin++; | |
108 | ||
109 | ||
110 | fCurCoor1 = (fCoor1Min+(fCoor1Bin+0.5)*(fCoor1Max-fCoor1Min)/fNCoor1); | |
111 | fCurCoor2 = (fCoor2Min+(fCoor2Bin+0.5)*(fCoor2Max-fCoor2Min)/fNCoor2); | |
112 | ||
113 | // Origin and direction | |
114 | Int_t i; | |
115 | for (i=0; i<3; i++) { | |
116 | pmom[i]=fDir3[i]; | |
117 | orig[i]=fCurCoor1*fDir1[i]+fCurCoor2*fDir2[i]; | |
118 | } | |
119 | ||
120 | Float_t dalicz = 3000; | |
121 | if (fRadMin > 0) { | |
122 | Float_t t = PropagateCylinder(orig,pmom,fRadMin,dalicz); | |
123 | orig[0] = pmom[0]*t; | |
124 | orig[1] = pmom[1]*t; | |
125 | orig[2] = pmom[2]*t; | |
126 | if (TMath::Abs(orig[2]) > fZMax) return; | |
127 | } | |
128 | ||
129 | Float_t polar[3]={0.,0.,0.}; | |
130 | Int_t ntr; | |
642f15cf | 131 | gAlice->PushTrack(1, -1, kMpart, pmom, orig, polar, 0, kPPrimary, ntr); |
c5ca52b2 | 132 | |
133 | } | |
134 | ||
135 | ||
136 | ||
137 |