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 //-------------------------------------------------------------------------
19 // Lego generator in x - y - z bins
20 // Uses geantino rays to check the material distributions and detector's
23 //-------------------------------------------------------------------------
25 #include "AliLegoGeneratorXYZ.h"
28 ClassImp(AliLegoGeneratorXYZ)
31 //___________________________________________
34 AliLegoGeneratorXYZ::AliLegoGeneratorXYZ()
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.;
42 AliLegoGeneratorXYZ::AliLegoGeneratorXYZ(char* axis)
45 if (!strcmp(axis,"x") || !strcmp(axis,"X"))
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.;
51 else if (!strcmp(axis,"y") || !strcmp(axis,"Y"))
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.;
57 else if (!strcmp(axis,"z") || !strcmp(axis,"Z"))
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.;
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.;
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,
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.;
86 //___________________________________________
87 void AliLegoGeneratorXYZ::Generate()
89 // Create a geantino with kinematics corresponding to the current bins
95 const Int_t kMpart = 0;
96 Float_t orig[3], pmom[3];
98 // Prepare for next step
99 if(fCoor1Bin>=fNCoor1-1)
100 if(fCoor2Bin>=fNCoor2-1) {
101 Warning("Generate","End of Lego Generation");
105 printf("Generating rays in Coordinate 2 bin:%d\n",fCoor2Bin);
110 fCurCoor1 = (fCoor1Min+(fCoor1Bin+0.5)*(fCoor1Max-fCoor1Min)/fNCoor1);
111 fCurCoor2 = (fCoor2Min+(fCoor2Bin+0.5)*(fCoor2Max-fCoor2Min)/fNCoor2);
113 // Origin and direction
115 for (i=0; i<3; i++) {
117 orig[i]=fCurCoor1*fDir1[i]+fCurCoor2*fDir2[i];
120 Float_t dalicz = 3000;
122 Float_t t = PropagateCylinder(orig,pmom,fRadMin,dalicz);
126 if (TMath::Abs(orig[2]) > fZMax) return;
129 Float_t polar[3]={0.,0.,0.};
131 gAlice->SetTrack(1, -1, kMpart, pmom, orig, polar, 0, kPPrimary, ntr);