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 **************************************************************************/
17 ///////////////////////////////////////////////////////////////////////////////
19 // Calibration class for DCS sensors //
20 // Authors: Marian Ivanov and Haavard Helstrup //
22 ///////////////////////////////////////////////////////////////////////////////
24 #include "AliDCSSensorArray.h"
26 ClassImp(AliDCSSensorArray)
28 const Int_t kMinGraph = 10; // minimum #points of graph to be fitted
29 const Int_t kMinPoints = 10; // minimum number of points per knot in fit
30 const Int_t kIter = 10; // number of iterations for spline fit
31 const Double_t kMaxDelta = 0.00; // precision parameter for spline fit
32 const Int_t kFitReq = 2; // fit requirement, 2 = continuous 2nd derivative
34 //_____________________________________________________________________________
35 AliDCSSensorArray::AliDCSSensorArray():TNamed()
38 // AliDCSSensorArray default constructor
43 TTimeStamp defTime(2000,1,1,0,0,0);
48 //_____________________________________________________________________________
49 AliDCSSensorArray::AliDCSSensorArray(Int_t prevRun, const char* dbEntry)
52 // Read positions etc. from data base entry for previous run
53 // Delete all fits and graphs
55 AliDCSSensorArray *temp=0;
57 AliCDBManager::Instance()->Get(dbEntry,prevRun);
59 entry->SetOwner(kTRUE);
60 temp = (AliDCSSensorArray*)entry->GetObject();
66 // Delete previous values
68 Int_t nsensors = temp->fSensors->GetEntries();
69 for ( Int_t isensor=0; isensor<nsensors; isensor++) {
70 AliDCSSensor *entry = (AliDCSSensor*)temp->fSensors->At(isensor);
71 gr = entry->GetGraph();
76 fit = entry->GetFit();
83 new (this) AliDCSSensorArray(*temp);
89 //_____________________________________________________________________________
90 AliDCSSensorArray::AliDCSSensorArray(const AliDCSSensorArray &c):TNamed(c)
93 // AliDCSSensorArray copy constructor
96 ((AliDCSSensorArray &) c).Copy(*this);
100 ///_____________________________________________________________________________
101 AliDCSSensorArray::~AliDCSSensorArray()
104 // AliDCSSensorArray destructor
111 //_____________________________________________________________________________
112 AliDCSSensorArray &AliDCSSensorArray::operator=(const AliDCSSensorArray &c)
115 // Assignment operator
118 if (this != &c) ((AliDCSSensorArray &) c).Copy(*this);
123 //_____________________________________________________________________________
124 void AliDCSSensorArray::Copy(TObject &c) const
132 //_____________________________________________________________________________
133 void AliDCSSensorArray::SetGraph(TMap *map, const char *amandaString)
136 // Read graphs from DCS maps
139 Int_t nsensors = fSensors->GetEntries();
140 for ( Int_t isensor=0; isensor<nsensors; isensor++) {
141 AliDCSSensor *entry = (AliDCSSensor*)fSensors->At(isensor);
142 Int_t dcsSensor=entry->GetIdDCS();
143 sprintf(dname,amandaString,dcsSensor);
144 TGraph *gr = (TGraph*)map->GetValue(dname);
148 //_____________________________________________________________________________
149 void AliDCSSensorArray::MakeSplineFit(TMap *map, const char *amandaString)
152 // Make spline fits from DCS maps
155 Int_t nsensors = fSensors->GetEntries();
156 for ( Int_t isensor=0; isensor<nsensors; isensor++) {
157 AliDCSSensor *entry = (AliDCSSensor*)fSensors->At(isensor);
158 Int_t dcsSensor=entry->GetIdDCS();
159 sprintf(dname,amandaString,dcsSensor);
160 TGraph *gr = (TGraph*)map->GetValue(dname);
161 if (gr->GetN() < kMinGraph ) continue;
162 AliSplineFit *fit = new AliSplineFit();
163 fit->InitKnots(gr,kMinPoints,kIter,kMaxDelta);
164 fit->SplineFit(kFitReq);
165 entry->SetStartTime(fStartTime);
171 //_____________________________________________________________________________
172 Double_t AliDCSSensorArray::GetValue(UInt_t timeSec, Int_t sensor)
175 // Return sensor value at time timeSec (obtained from fitted function)
176 // timeSec = time in seconds from start of run
178 AliDCSSensor *entry = (AliDCSSensor*)fSensors->At(sensor);
179 return entry->GetValue(timeSec);
183 //_____________________________________________________________________________
184 TMap* AliDCSSensorArray::ExtractDCS(TMap *dcsMap, const char *amandaString)
187 // Extract temperature graphs from DCS maps
189 TMap *values = new TMap;
190 TObjArray * valueSet;
191 for (Int_t dcsSensor = fFirstSensor; dcsSensor<=fLastSensor; dcsSensor++)
193 TString DPname = Form (amandaString,dcsSensor);
194 valueSet = (TObjArray*)dcsMap->FindObject(DPname.Data());
195 TGraph *graph = MakeGraph(valueSet);
196 values->Add(new TObjString(DPname.Data()),graph);
201 //_____________________________________________________________________________
202 TGraph* AliDCSSensorArray::MakeGraph(TObjArray* valueSet){
204 // Make graph of temperature values read from DCS map
205 // (spline fit parameters will subsequently be obtained from this graph)
207 Int_t nentries = valueSet->GetEntriesFast();
208 Float_t *x = new Float_t[nentries];
209 Float_t *y = new Float_t[nentries];
214 for (Int_t i=0; i<nentries; i++){
215 AliDCSValue * val = (AliDCSValue *)valueSet->At(i);
218 time0=val->GetTimeStamp();
220 value = val->GetFloat();
221 if (TMath::Abs(value)>100) continue; // refuse values exceeding 100
222 if ( out>0 && skipped<10 && TMath::Abs(value-y[out-1])>5) {
223 skipped++; // refuse temperatures changing
224 continue; // by > 5 degrees in one time step
227 if (val->GetTimeStamp()-time0>1000000) continue;
228 x[out] = (val->GetTimeStamp()-time0)/3600.0; // give times in fractions of hours
229 y[out] = val->GetFloat();
233 TGraph * graph = new TGraph(out,x,y);
239 //_____________________________________________________________________________
240 AliDCSSensor* AliDCSSensorArray::GetSensor(Int_t IdDCS)
243 // Return sensor information for sensor specified by IdDCS
245 Int_t nsensors = fSensors->GetEntries();
246 for (Int_t isensor=0; isensor<nsensors; isensor++) {
247 AliDCSSensor *entry = (AliDCSSensor*)fSensors->At(isensor);
248 if (entry->GetIdDCS() == IdDCS) return entry;
252 //_____________________________________________________________________________
253 AliDCSSensor* AliDCSSensorArray::GetSensor(Double_t x, Double_t y, Double_t z)
256 // Return sensor closest to given position
258 Int_t nsensors = fSensors->GetEntries();
259 Double_t dist2min=1e99;
260 Double_t xs,ys,zs,dist2;
262 for (Int_t isensor=0; isensor<nsensors; isensor++) {
263 AliDCSSensor *entry = (AliDCSSensor*)fSensors->At(isensor);
267 dist2 = (x-xs)*(x-xs) + (y-ys)*(y-ys) + (z-zs)*(z-zs);
268 if (dist2 < dist2min) {
274 return (AliDCSSensor*)fSensors->At(ind);