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c8735dd3 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-2003, 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 | #include <Riostream.h> | |
16 | #include "AliESDVertex.h" | |
17 | #include "AliLog.h" | |
18 | #include <TString.h> | |
19 | #include "AliITSVertexerFixed.h" | |
20 | ||
21 | ///////////////////////////////////////////////////////////////////////// | |
22 | // // | |
23 | // Fixed vertexer - creates a vertex in a defined postion (x,y,z) // | |
24 | // the standard contructor takes a sting to specify the case // | |
25 | // Useful for reconstruction of injection tests with beam on TDI // | |
26 | // // | |
27 | ///////////////////////////////////////////////////////////////////////// | |
28 | ||
29 | ClassImp(AliITSVertexerFixed) | |
30 | ||
b9e83c62 | 31 | /* $Id$ */ |
c8735dd3 | 32 | |
33 | //______________________________________________________________________ | |
34 | AliITSVertexerFixed::AliITSVertexerFixed():AliITSVertexer() | |
35 | { | |
36 | // Default Constructor | |
37 | AliWarning("This contructor sets the vertex in (0,0,0)"); | |
38 | for(Int_t k=0; k<3;k++){ | |
39 | fVtxPos[k]=0.; | |
40 | fVtxErr[k]=0.5; | |
41 | } | |
42 | } | |
43 | ||
44 | //______________________________________________________________________ | |
45 | AliITSVertexerFixed::AliITSVertexerFixed(TString option):AliITSVertexer() | |
46 | { | |
47 | // Standard constructor | |
48 | if(option.Contains("TDI")){ | |
49 | fVtxPos[0]=0.; | |
50 | fVtxPos[1]=0.; | |
51 | fVtxPos[2]=8000.; // TDI at z=80 m | |
52 | fVtxErr[0]=1.; | |
53 | fVtxErr[1]=1.; | |
54 | fVtxErr[2]=100.; | |
55 | } | |
56 | else if(option.Contains("TED")){ | |
57 | fVtxPos[0]=0.; | |
58 | fVtxPos[1]=0.; | |
59 | fVtxPos[2]=34000.; // TED at z=+340 m | |
60 | fVtxErr[0]=1.; | |
61 | fVtxErr[1]=1.; | |
62 | fVtxErr[2]=100.; | |
63 | }else{ | |
64 | AliError(Form("%s is invalid, sets the vertex in (0,0,0)",option.Data())); | |
65 | for(Int_t k=0; k<3;k++){ | |
66 | fVtxPos[k]=0.; | |
67 | fVtxErr[k]=0.5; | |
68 | } | |
69 | } | |
70 | } | |
71 | ||
72 | ||
73 | //______________________________________________________________________ | |
74 | AliESDVertex* AliITSVertexerFixed::FindVertexForCurrentEvent(TTree * /*itsClusterTree */){ | |
75 | // Defines the AliITSVertex for the current event | |
76 | ||
77 | fCurrentVertex = new AliESDVertex(fVtxPos,fVtxErr,"Fixed Vertex"); | |
78 | return fCurrentVertex; | |
79 | ||
80 | } | |
81 | ||
82 | //________________________________________________________ | |
83 | void AliITSVertexerFixed::PrintStatus() const { | |
84 | // Print current status | |
85 | cout <<"=======================================================\n"; | |
86 | ||
87 | cout<<"Fixed positions: "; | |
88 | for(Int_t k=0;k<3;k++)cout<<" "<<fVtxPos[k]<<"+-"<<fVtxErr[k]; | |
89 | cout<<endl; | |
90 | } | |
91 |