fForceDecay initialized to kAll in constructors
[u/mrichter/AliRoot.git] / STEER / AliLegoGeneratorXYZ.cxx
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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"
5d12ce38 27#include "AliMC.h"
c5ca52b2 28
29ClassImp(AliLegoGeneratorXYZ)
30
31
32//___________________________________________
33
34
35AliLegoGeneratorXYZ::AliLegoGeneratorXYZ()
36{
37// Default Constructor
38 fDir1[0]=1.; fDir1[1]=0.; fDir1[2]=0.;
39 fDir2[0]=0.; fDir2[1]=1.; fDir2[2]=0.;
40 fDir3[0]=0.; fDir3[1]=0.; fDir3[2]=1.;
41}
42
43AliLegoGeneratorXYZ::AliLegoGeneratorXYZ(char* axis)
44{
45// Constructor
46 if (!strcmp(axis,"x") || !strcmp(axis,"X"))
47 {
48 fDir1[0]=0.; fDir1[1]=1.; fDir1[2]=0.;
49 fDir2[0]=0.; fDir2[1]=0.; fDir2[2]=1.;
50 fDir3[0]=1.; fDir3[1]=0.; fDir3[2]=0.;
51 }
52 else if (!strcmp(axis,"y") || !strcmp(axis,"Y"))
53 {
54 fDir1[0]=1.; fDir1[1]=0.; fDir1[2]=0.;
55 fDir2[0]=0.; fDir2[1]=0.; fDir2[2]=1;
56 fDir3[0]=0.; fDir3[1]=1.; fDir3[2]=0.;
57 }
58 else if (!strcmp(axis,"z") || !strcmp(axis,"Z"))
59 {
60 fDir1[0]=1.; fDir1[1]=0.; fDir1[2]=0.;
61 fDir2[0]=0.; fDir2[1]=1.; fDir2[2]=0.;
62 fDir3[0]=0.; fDir3[1]=0.; fDir3[2]=1.;
63 }
64 else
65 {
66 fDir1[0]=1.; fDir1[1]=0.; fDir1[2]=0.;
67 fDir2[0]=0.; fDir2[1]=1.; fDir2[2]=0.;
68 fDir3[0]=0.; fDir3[1]=0.; fDir3[2]=1.;
69 }
70}
71
72
73AliLegoGeneratorXYZ::AliLegoGeneratorXYZ(Int_t nc1, Float_t c1min,
74 Float_t c1max, Int_t nc2,
75 Float_t c2min, Float_t c2max,
76 Float_t rmin, Float_t rmax, Float_t zmax) :
77 AliLegoGenerator(nc1, c1min, c1max, nc2, c2min, c2max,
78 rmin, rmax, zmax)
79{
80// Constructor
81 fDir1[0]=1.; fDir1[1]=0.; fDir1[2]=0.;
82 fDir2[0]=0.; fDir2[1]=1.; fDir2[2]=0.;
83 fDir3[0]=0.; fDir3[1]=0.; fDir3[2]=1.;
84}
85
86
87//___________________________________________
88void AliLegoGeneratorXYZ::Generate()
89{
90// Create a geantino with kinematics corresponding to the current bins
91// Here: Coor1 = x
92// Coor2 = z
93
94 //
95 // Rootinos are 0
96 const Int_t kMpart = 0;
97 Float_t orig[3], pmom[3];
98
99 // Prepare for next step
100 if(fCoor1Bin>=fNCoor1-1)
101 if(fCoor2Bin>=fNCoor2-1) {
102 Warning("Generate","End of Lego Generation");
103 return;
104 } else {
105 fCoor2Bin++;
106 printf("Generating rays in Coordinate 2 bin:%d\n",fCoor2Bin);
107 fCoor1Bin=0;
108 } else fCoor1Bin++;
109
110
111 fCurCoor1 = (fCoor1Min+(fCoor1Bin+0.5)*(fCoor1Max-fCoor1Min)/fNCoor1);
112 fCurCoor2 = (fCoor2Min+(fCoor2Bin+0.5)*(fCoor2Max-fCoor2Min)/fNCoor2);
113
114// Origin and direction
115 Int_t i;
116 for (i=0; i<3; i++) {
117 pmom[i]=fDir3[i];
118 orig[i]=fCurCoor1*fDir1[i]+fCurCoor2*fDir2[i];
119 }
120
121 Float_t dalicz = 3000;
122 if (fRadMin > 0) {
123 Float_t t = PropagateCylinder(orig,pmom,fRadMin,dalicz);
124 orig[0] = pmom[0]*t;
125 orig[1] = pmom[1]*t;
126 orig[2] = pmom[2]*t;
127 if (TMath::Abs(orig[2]) > fZMax) return;
128 }
129
130 Float_t polar[3]={0.,0.,0.};
131 Int_t ntr;
5d12ce38 132 gAlice->GetMCApp()->PushTrack(1, -1, kMpart, pmom, orig, polar, 0, kPPrimary, ntr);
c5ca52b2 133
134}
135
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