Moving to the new VMC naming convention
[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"
27
28ClassImp(AliLegoGeneratorXYZ)
29
30
31//___________________________________________
32
33
34AliLegoGeneratorXYZ::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
42AliLegoGeneratorXYZ::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
72AliLegoGeneratorXYZ::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//___________________________________________
87void 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}
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