consolidate zero-length arrays (aka struct hack)
[u/mrichter/AliRoot.git] / VZERO / AliVZEROTrending.cxx
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
16 // 
17 // Class AliVZEROTrending
18 // ---------------------------
19 // 
20 //  class used in QA to publish variables evolution versus time in AMORE. 
21 //  These histo are the one which will be looked at by QA Shifter
22 // 
23 #include "TGraph.h"
24 #include "TMultiGraph.h"
25 #include "TLegend.h"
26 #include "TString.h"
27
28 #include "AliLog.h"
29 #include "AliVZEROTrending.h"
30
31 ClassImp(AliVZEROTrending)
32
33 //_____________________________________________________________________________
34 AliVZEROTrending::AliVZEROTrending() : TH1(), fNEntries(0), fMultiGraphs(NULL)
35 {
36         // Default constructor
37         for(int i=0; i<8;i++) fGraphs[i] = NULL;
38         for (int i = 0; i < kDataSize; i++) {
39                 fTime[i] = 0;
40                 for (int j = 0; j < 8; j++) {
41                   fData[j][i] = 0;
42                 }
43         }
44 }
45 //_____________________________________________________________________________
46 AliVZEROTrending::AliVZEROTrending(const char* name, const char* title) : TH1(), fNEntries(0), fMultiGraphs(NULL)
47 {
48         SetName(name);
49         SetTitle(title);
50         for(int i=0; i<8;i++) fGraphs[i] = NULL;
51         for (int i = 0; i < kDataSize; i++) {
52                 fTime[i] = 0;
53                 for (int j = 0; j < 8; j++) {
54                   fData[j][i] = 0;
55                 }
56         }
57 }
58 //_____________________________________________________________________________
59 AliVZEROTrending::AliVZEROTrending(const AliVZEROTrending &trend) : 
60         TH1(), fNEntries(trend.fNEntries), fMultiGraphs(NULL)
61 {
62         // Copy constructor
63         for(int i=0; i<8;i++) fGraphs[i] = NULL;
64         SetName(trend.GetName());
65         SetTitle(trend.GetTitle());
66         for (int i = 0; i < kDataSize; i++) {
67                 fTime[i] = trend.fTime[i];
68                 for (int j = 0; j < 8; j++) {
69                         fData[j][i] = trend.fData[j][i];
70                 }
71         }
72 }
73
74 //_____________________________________________________________________________
75 AliVZEROTrending::~AliVZEROTrending(){
76   for (Int_t i=0; i<8; ++i) delete fGraphs[i];
77   delete fMultiGraphs;
78 }
79 // -----------------------------------------------------------------                    
80 void AliVZEROTrending::AddEntry(Double_t * data, UInt_t time)
81 {
82
83         if(fNEntries<kDataSize){
84                 for (int i = 0; i < 8; i++)
85                 {
86                         fData[i][fNEntries] = data[i];
87                         fTime[fNEntries] = (double) time;
88                 }
89                 fNEntries++;    
90         }else{
91
92                 for (int i = 0; i < kDataSize-1; i++){
93                         fTime[i] = fTime[i+1];
94                         for (int ich = 0; ich < 8; ich++){              
95                                 fData[ich][i] = fData[ich][i+1];
96                         }       
97                 }
98                 for (int i = 0; i < 8; i++)
99                 {
100                         fData[i][fNEntries-1] = data[i];
101                         fTime[fNEntries-1] = (double) time;
102                 }
103                 
104         }
105 //      printf("sizeof UInt_t Double_t %d %d\n",sizeof(UInt_t),sizeof(Double_t));
106 //      printf("Add Entry %d @ %f : %f %f %f %f %f %f %f %f \n",fNEntries,fTime[fNEntries-1], 
107 //              data[0],data[1],data[2],data[3],data[4],data[5],data[6],data[7]);
108 }                       
109 // -----------------------------------------------------------------                    
110 void AliVZEROTrending::PrintEntry(UInt_t entry)
111 {
112
113         if(entry>=fNEntries){
114                 AliError(Form("maximum entry is %d\n",fNEntries-1));
115         }else{
116                 AliInfo(Form("Entry %d @ %f : %f %f %f %f %f %f %f %f \n",entry, fTime[entry],
117                         fData[0][entry],fData[1][entry],fData[2][entry],fData[3][entry],fData[4][entry],fData[5][entry],fData[6][entry],fData[7][entry]));
118
119         }
120 }                       
121
122 // -----------------------------------------------------------------                    
123 void AliVZEROTrending::Draw(Option_t *option){
124     TString opt = option;       
125         fMultiGraphs = new TMultiGraph();
126         fMultiGraphs->SetTitle(GetTitle());
127         
128         for(int i=0;i<8;i++) {
129                 fGraphs[i] = new TGraph(GetNEntries(), GetTime(), GetChannel(i));
130                 fGraphs[i]->SetLineWidth(2);
131                 fGraphs[i]->SetLineColor(i<4 ? i+1 : i -3);
132                 fGraphs[i]->SetLineStyle(i<4 ? 1 : 2);
133                 fMultiGraphs->Add(fGraphs[i]);
134         }
135
136         fMultiGraphs->Draw("AL");
137         fMultiGraphs->GetXaxis()->SetTimeDisplay(1);
138         fMultiGraphs->GetXaxis()->SetNdivisions(505,kFALSE);
139         fMultiGraphs->Draw("AL");
140         TLegend * legend = new TLegend(0.7,0.65,0.86,0.88);
141         legend->AddEntry(fGraphs[4],"V0A - Ring0","l");
142         legend->AddEntry(fGraphs[5],"V0A - Ring1","l");
143         legend->AddEntry(fGraphs[6],"V0A - Ring2","l");
144         legend->AddEntry(fGraphs[7],"V0A - Ring3","l");
145         legend->AddEntry(fGraphs[0],"V0C - Ring0","l");
146         legend->AddEntry(fGraphs[1],"V0C - Ring1","l");
147         legend->AddEntry(fGraphs[2],"V0C - Ring2","l");
148         legend->AddEntry(fGraphs[3],"V0C - Ring3","l");
149         legend->Draw();
150 }