Corrections to obey our coding conventions
[u/mrichter/AliRoot.git] / STEER / AliLegoGeneratorPhiZ.cxx
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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
acd84897 16/* $Id$ */
6872c613 17
116cbefd 18//-------------------------------------------------------------------------
116cbefd 19// Lego generator in Phi - Z bins
5d8718b8 20// Uses geantino rays to check the material distributions and detector's
21// geometry
22// Author: A.Morsch
116cbefd 23//-------------------------------------------------------------------------
24
6872c613 25#include "AliLegoGeneratorPhiZ.h"
26#include "AliRun.h"
5d12ce38 27#include "AliMC.h"
6872c613 28
29ClassImp(AliLegoGeneratorPhiZ)
30
31
32//___________________________________________
33void AliLegoGeneratorPhiZ::Generate()
34{
35// Create a geantino with kinematics corresponding to the current bins
36// Here: Coor1 = Z
37// Coor2 = phi.
38
39 //
40 // Rootinos are 0
41 const Int_t kMpart = 0;
42 Float_t orig[3], pmom[3];
43 Float_t t, cosp, sinp;
44 if (fCoor1Bin==-1) fCoor1Bin=fNCoor1;
45 // Prepare for next step
46 if(fCoor1Bin>=fNCoor1-1)
47 if(fCoor2Bin>=fNCoor2-1) {
48 Warning("Generate","End of Lego Generation");
49 return;
50 } else {
51 fCoor2Bin++;
39974533 52 printf("Generating rays in Phi-bin:%d\n",fCoor2Bin);
6872c613 53 fCoor1Bin=0;
54 } else fCoor1Bin++;
6872c613 55 fCurCoor1 = (fCoor1Min+(fCoor1Bin+0.5)*(fCoor1Max-fCoor1Min)/fNCoor1);
56 fCurCoor2 = (fCoor2Min+(fCoor2Bin+0.5)*(fCoor2Max-fCoor2Min)/fNCoor2);
57
d55c1573 58 Float_t phi = fCurCoor2*TMath::Pi()/180.;
6872c613 59
60 cosp = TMath::Cos(phi);
61 sinp = TMath::Sin(phi);
62
63 pmom[0] = cosp;
64 pmom[1] = sinp;
65 pmom[2] = 0.;
66
67 // --- Where to start
68 orig[0] = orig[1] = orig[2] = 0;
d55c1573 69 orig[2] = fCurCoor1;
6872c613 70
71 Float_t dalicz = 3000;
72 if (fRadMin > 0) {
73 t = PropagateCylinder(orig,pmom,fRadMin,dalicz);
899c7749 74 orig[0] += pmom[0]*t;
75 orig[1] += pmom[1]*t;
76 orig[2] += pmom[2]*t;
6872c613 77 if (TMath::Abs(orig[2]) > fZMax) return;
78 }
79
80 Float_t polar[3]={0.,0.,0.};
81 Int_t ntr;
5d12ce38 82 gAlice->GetMCApp()->PushTrack(1, -1, kMpart, pmom, orig, polar, 0, kPPrimary, ntr);
6872c613 83
84}