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 //-------------------------------------------------------------------------
20 // Lego generator in x - y - z bins
22 //-------------------------------------------------------------------------
24 #include "AliLegoGeneratorXYZ.h"
27 ClassImp(AliLegoGeneratorXYZ)
30 //___________________________________________
33 AliLegoGeneratorXYZ::AliLegoGeneratorXYZ()
35 // Default Constructor
36 fDir1[0]=1.; fDir1[1]=0.; fDir1[2]=0.;
37 fDir2[0]=0.; fDir2[1]=1.; fDir2[2]=0.;
38 fDir3[0]=0.; fDir3[1]=0.; fDir3[2]=1.;
41 AliLegoGeneratorXYZ::AliLegoGeneratorXYZ(char* axis)
44 if (!strcmp(axis,"x") || !strcmp(axis,"X"))
46 fDir1[0]=0.; fDir1[1]=1.; fDir1[2]=0.;
47 fDir2[0]=0.; fDir2[1]=0.; fDir2[2]=1.;
48 fDir3[0]=1.; fDir3[1]=0.; fDir3[2]=0.;
50 else if (!strcmp(axis,"y") || !strcmp(axis,"Y"))
52 fDir1[0]=1.; fDir1[1]=0.; fDir1[2]=0.;
53 fDir2[0]=0.; fDir2[1]=0.; fDir2[2]=1;
54 fDir3[0]=0.; fDir3[1]=1.; fDir3[2]=0.;
56 else if (!strcmp(axis,"z") || !strcmp(axis,"Z"))
58 fDir1[0]=1.; fDir1[1]=0.; fDir1[2]=0.;
59 fDir2[0]=0.; fDir2[1]=1.; fDir2[2]=0.;
60 fDir3[0]=0.; fDir3[1]=0.; fDir3[2]=1.;
64 fDir1[0]=1.; fDir1[1]=0.; fDir1[2]=0.;
65 fDir2[0]=0.; fDir2[1]=1.; fDir2[2]=0.;
66 fDir3[0]=0.; fDir3[1]=0.; fDir3[2]=1.;
71 AliLegoGeneratorXYZ::AliLegoGeneratorXYZ(Int_t nc1, Float_t c1min,
72 Float_t c1max, Int_t nc2,
73 Float_t c2min, Float_t c2max,
74 Float_t rmin, Float_t rmax, Float_t zmax) :
75 AliLegoGenerator(nc1, c1min, c1max, nc2, c2min, c2max,
79 fDir1[0]=1.; fDir1[1]=0.; fDir1[2]=0.;
80 fDir2[0]=0.; fDir2[1]=1.; fDir2[2]=0.;
81 fDir3[0]=0.; fDir3[1]=0.; fDir3[2]=1.;
85 //___________________________________________
86 void AliLegoGeneratorXYZ::Generate()
88 // Create a geantino with kinematics corresponding to the current bins
94 const Int_t kMpart = 0;
95 Float_t orig[3], pmom[3];
97 // Prepare for next step
98 if(fCoor1Bin>=fNCoor1-1)
99 if(fCoor2Bin>=fNCoor2-1) {
100 Warning("Generate","End of Lego Generation");
104 printf("Generating rays in Coordinate 2 bin:%d\n",fCoor2Bin);
109 fCurCoor1 = (fCoor1Min+(fCoor1Bin+0.5)*(fCoor1Max-fCoor1Min)/fNCoor1);
110 fCurCoor2 = (fCoor2Min+(fCoor2Bin+0.5)*(fCoor2Max-fCoor2Min)/fNCoor2);
112 // Origin and direction
114 for (i=0; i<3; i++) {
116 orig[i]=fCurCoor1*fDir1[i]+fCurCoor2*fDir2[i];
119 Float_t dalicz = 3000;
121 Float_t t = PropagateCylinder(orig,pmom,fRadMin,dalicz);
125 if (TMath::Abs(orig[2]) > fZMax) return;
128 Float_t polar[3]={0.,0.,0.};
130 gAlice->SetTrack(1, -1, kMpart, pmom, orig, polar, 0, kPPrimary, ntr);