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6872c613 | 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 | ||
fb17acd4 | 16 | /* $Header$ */ |
6872c613 | 17 | |
116cbefd | 18 | //------------------------------------------------------------------------- |
19 | // | |
20 | // Lego generator in Phi - Z bins | |
21 | // | |
22 | //------------------------------------------------------------------------- | |
23 | ||
6872c613 | 24 | #include "AliLegoGeneratorPhiZ.h" |
25 | #include "AliRun.h" | |
26 | ||
27 | ClassImp(AliLegoGeneratorPhiZ) | |
28 | ||
29 | ||
30 | //___________________________________________ | |
31 | void AliLegoGeneratorPhiZ::Generate() | |
32 | { | |
33 | // Create a geantino with kinematics corresponding to the current bins | |
34 | // Here: Coor1 = Z | |
35 | // Coor2 = phi. | |
36 | ||
37 | // | |
38 | // Rootinos are 0 | |
39 | const Int_t kMpart = 0; | |
40 | Float_t orig[3], pmom[3]; | |
41 | Float_t t, cosp, sinp; | |
42 | if (fCoor1Bin==-1) fCoor1Bin=fNCoor1; | |
43 | // Prepare for next step | |
44 | if(fCoor1Bin>=fNCoor1-1) | |
45 | if(fCoor2Bin>=fNCoor2-1) { | |
46 | Warning("Generate","End of Lego Generation"); | |
47 | return; | |
48 | } else { | |
49 | fCoor2Bin++; | |
39974533 | 50 | printf("Generating rays in Phi-bin:%d\n",fCoor2Bin); |
6872c613 | 51 | fCoor1Bin=0; |
52 | } else fCoor1Bin++; | |
6872c613 | 53 | fCurCoor1 = (fCoor1Min+(fCoor1Bin+0.5)*(fCoor1Max-fCoor1Min)/fNCoor1); |
54 | fCurCoor2 = (fCoor2Min+(fCoor2Bin+0.5)*(fCoor2Max-fCoor2Min)/fNCoor2); | |
55 | ||
d55c1573 | 56 | Float_t phi = fCurCoor2*TMath::Pi()/180.; |
6872c613 | 57 | |
58 | cosp = TMath::Cos(phi); | |
59 | sinp = TMath::Sin(phi); | |
60 | ||
61 | pmom[0] = cosp; | |
62 | pmom[1] = sinp; | |
63 | pmom[2] = 0.; | |
64 | ||
65 | // --- Where to start | |
66 | orig[0] = orig[1] = orig[2] = 0; | |
d55c1573 | 67 | orig[2] = fCurCoor1; |
6872c613 | 68 | |
69 | Float_t dalicz = 3000; | |
70 | if (fRadMin > 0) { | |
71 | t = PropagateCylinder(orig,pmom,fRadMin,dalicz); | |
899c7749 | 72 | orig[0] += pmom[0]*t; |
73 | orig[1] += pmom[1]*t; | |
74 | orig[2] += pmom[2]*t; | |
6872c613 | 75 | if (TMath::Abs(orig[2]) > fZMax) return; |
76 | } | |
77 | ||
78 | Float_t polar[3]={0.,0.,0.}; | |
79 | Int_t ntr; | |
9e1a0ddb | 80 | gAlice->SetTrack(1, -1, kMpart, pmom, orig, polar, 0, kPPrimary, ntr); |
6872c613 | 81 | |
82 | } |