Fixing compiler warning
[u/mrichter/AliRoot.git] / TPC / AliTPCTempMap.cxx
CommitLineData
1209231c 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///////////////////////////////////////////////////////////////////////////////
18// //
19// TPC calibration class for temperature maps and tendencies //
20// (based on TPC Temperature Sensors and FiniteElement Simulation) //
21// //
22// Authors: Stefan Rossegger, Haavard Helstrup //
23// //
24///////////////////////////////////////////////////////////////////////////////
25
26#include "AliTPCSensorTempArray.h"
27#include "TLinearFitter.h"
28#include "TString.h"
29#include "TGraph2D.h"
30
31#include "AliTPCTempMap.h"
32
33
34ClassImp(AliTPCTempMap)
35
36 const char kStringFEsimulation[] = "FEsimulation.txt";
37
38//_____________________________________________________________________________
39AliTPCTempMap::AliTPCTempMap(AliTPCSensorTempArray *sensorDCS):
40 TNamed(),
41 ft(0),
42 fStringFEsimulation(kStringFEsimulation)
43{
44 //
45 // AliTPCTempMap default constructor
46 //
47
48 ft = sensorDCS;
49
50}
51
52//_____________________________________________________________________________
53AliTPCTempMap::AliTPCTempMap(const AliTPCTempMap &c):
54 TNamed(c),
55 ft(c.ft),
56 fStringFEsimulation(c.fStringFEsimulation)
57{
58 //
59 // AliTPCTempMap copy constructor
60 //
61
62}
63
64//_____________________________________________________________________________
65AliTPCTempMap::~AliTPCTempMap()
66{
67 //
68 // AliTPCTempMap destructor
69 //
70
71}
72
73//_____________________________________________________________________________
74AliTPCTempMap &AliTPCTempMap::operator=(const AliTPCTempMap &c)
75{
76 //
77 // Assignment operator
78 //
79
80 if (this != &c) ((AliTPCTempMap &) c).Copy(*this);
81 return *this;
82
83}
84
85//_____________________________________________________________________________
86void AliTPCTempMap::Copy(TObject &c) const
87{
88 //
89 // Copy function
90 //
91
92 TObject::Copy(c);
93
94}
95
96//_____________________________________________________________________________
97
98Double_t AliTPCTempMap::GetTempGradientY(UInt_t timeSec, Int_t side){
99 //
100 // Extract Linear Vertical Temperature Gradient [K/cm] within the TPC on
101 // Shaft Side(A): 0
102 // Muon Side(C): 1
103 // Values based on TemperatureSensors within the TPC ( type: 3 (TPC) )
104 //
105 // FIXME: Also return residual-distribution, covariance Matrix
106 // or simply chi2 for validity check?
107 // -> better use GetLinearFitter - function in this case!
108
b479e253 109 TLinearFitter *fitter = new TLinearFitter(3,"x0++x1++x2");
1209231c 110 TVectorD param(3);
111 Int_t i = 0;
112
113 Int_t nsensors = ft->NumSensors();
114 for (Int_t isensor=0; isensor<nsensors; isensor++) { // loop over all sensors
115 AliTPCSensorTemp *entry = (AliTPCSensorTemp*)ft->GetSensorNum(isensor);
116
117 if (entry->GetType()==3 && entry->GetSide()==side) { // take SensorType:TPC
118 Double_t x[3];
119 x[0]=1;
120 x[1]=entry->GetX();
121 x[2]=entry->GetY();
122 Double_t y = entry->GetValue(timeSec); // get temperature value
b479e253 123 fitter->AddPoint(x,y,1); // add values to LinearFitter
1209231c 124 i++;
125 }
126
127 }
b479e253 128 fitter->Eval();
129 fitter->GetParameters(param);
130
131 fitter->~TLinearFitter();
1209231c 132
133 return param[2]; // return vertical (Y) tempGradient in [K/cm]
134
135}
136
137//_____________________________________________________________________________
138
139TLinearFitter *AliTPCTempMap::GetLinearFitter(Int_t type, Int_t side, UInt_t timeSec)
140{
141 //
142 // Creates a TlinearFitter object for the desired region of the TPC
143 // (via choosen type and side of TPC temperature sensors) at a given
144 // timeSec (in secounds) after start time
145 // type: 0 ... ReadOutChambers (ROC)
146 // 1 ... OuterContainmentVessel (OFC)
147 // 2 ... InnerContainmentVessel (IFC) + ThermalScreener (TS)
148 // 3 ... Within the TPC (DriftVolume) (TPC)
149 // side: Can be choosen for type 0 and 3 (otherwise it will be ignored in
150 // in order to get all temperature sensors of interest)
151 // 0 ... Shaft Side (A)
152 // 1 ... Muon Side (C)
153 //
154
155 TLinearFitter *fitter = new TLinearFitter(3);
156 Double_t *x = new Double_t[3];
157 Double_t y = 0;
158
159 if (type == 1 || type == 2) {
160 fitter->SetFormula("x0++x1++TMath::Sin(x2)"); // returns Z,Y gradient
161 } else {
162 fitter->SetFormula("x0++x1++x2"); // returns X,Y gradient
163 }
164
165 Int_t i = 0;
166 Int_t nsensors = ft->NumSensors();
167 for (Int_t isensor=0; isensor<nsensors; isensor++) { // loop over all sensors
168 AliTPCSensorTemp *entry = (AliTPCSensorTemp*)ft->GetSensorNum(isensor);
169
170 if (type==0 || type==3) { // 'side' information used
171 if (entry->GetType()==type && entry->GetSide()==side) {
172 x[0]=1;
173 x[1]=entry->GetX();
174 x[2]=entry->GetY();
175 y = entry->GetValue(timeSec); // get temperature value
176 fitter->AddPoint(x,y,1); // add values to LinearFitter
177 i++;
178 }
179 } else if (type==2) { // in case of IFC also usage of TS values
180 if ((entry->GetType()==2) || (entry->GetType()==5)) {
181 x[0]=1;
182 x[1]=entry->GetZ();
183 x[2]=entry->GetPhi();
184 y = entry->GetValue(timeSec);
185 fitter->AddPoint(x,y,1);
186 i++;
187 }
188 } else if (type==1){
189 if (entry->GetType()==type) {
190 x[0]=1;
191 x[1]=entry->GetZ();
192 x[2]=entry->GetPhi();
193 y = entry->GetValue(timeSec);
194 fitter->AddPoint(x,y,1);
195 i++;
196 }
197 }
198 }
199 fitter->Eval(); // Evaluates fitter
200
201 delete [] x;
202
203 return fitter;
204
205 // returns TLinearFitter object where Chi2, Fitparameters and residuals can
206 // be extracted via usual memberfunctions
b479e253 207 // example: fitter->GetParameters(param)
1209231c 208 // In case of type IFC or OFC, the parameters are the gradients in
209 // Z and Y direction (see fitformula)
210 // Caution: Parameters are [K/cm] except Y at IFC,OFC ([K/radius])
211}
212
213//_____________________________________________________________________________
214
215TGraph2D *AliTPCTempMap::GetTempMapsViaSensors(Int_t type, Int_t side, UInt_t timeSec)
216{
217 //
218 // Creates a TGraph2D object for the desired region of the TPC
219 // (via choosen type and side of TPC temperature sensors) at a given
220 // timeSec (in secounds) after start time
221 // type: 0 ... ReadOutChambers (ROC)
222 // 1 ... OuterContainmentVessel (OFC)
223 // 2 ... InnerContainmentVessel (IFC) + ThermalScreener (TS)
224 // 3 ... Within the TPC (DriftVolume) (TPC)
225 // side: Can be choosen for type 0 and 3 (otherwise it will be ignored in
226 // in order to get all temperature sensors of interest)
227 // 0 ... Shaft Side (A)
228 // 1 ... Muon Side (C)
229 //
230
231 TGraph2D *graph2D = new TGraph2D();
232
233 Int_t i = 0;
234
235
236 Int_t nsensors = ft->NumSensors();
237
238
239 for (Int_t isensor=0; isensor<nsensors; isensor++) { // loop over all sensors
240 AliTPCSensorTemp *entry = (AliTPCSensorTemp*)ft->GetSensorNum(isensor);
241
242 Double_t x, y, z, r, phi, tempValue;
243 x = entry->GetX();
244 y = entry->GetY();
245 z = entry->GetZ();
246 r = entry->GetR();
247 phi = entry->GetPhi();
248 tempValue = entry->GetValue(timeSec);
249
250 if (type==0 || type==3) { // 'side' information used
251 if (entry->GetType()==type && entry->GetSide()==side) {
252 graph2D->SetPoint(i,x,y,tempValue);
253 i++;
254 }
255 } else if (type==2) { // in case of IFC also usage of TS values
256 if (entry->GetType()==2 || entry->GetType()==5) {
257 graph2D->SetPoint(i,z,phi,tempValue);
258 i++;
259 }
260 } else if (type==1){
261 if (entry->GetType()==type) {
262 graph2D->SetPoint(i,z,phi,tempValue);
263 i++;
264 }
265 }
266 }
267
268 if (type==0 || type==3) {
269 graph2D->GetXaxis()->SetTitle("X[cm]");
270 graph2D->GetYaxis()->SetTitle("Y[cm]");
271 if (type==0 && side==0) {
272 graph2D->SetTitle("ROC A - Endplate Shaft Side");
273 } else if (type==0 && side==1) {
274 graph2D->SetTitle("ROC C - Endplate Muon Side");
275 } else if (type==3 && side==0) {
276 graph2D->SetTitle("TPC A - Inside the TPC Shaft Side");
277 } else if (type==3 && side==1) {
278 graph2D->SetTitle("TPC C - Inside the TPC Muon Side");
279 }
280 } else if (type==1 || type==2) {
281 graph2D->GetXaxis()->SetTitle("Z[cm]");
282 graph2D->GetYaxis()->SetTitle("Phi[RAD]");
283 if (type==1) {
284 graph2D->SetTitle("Outer Containment Vessel");
285 } else if (type==2) {
286 graph2D->SetTitle("InnerContainmentVessel + ThermalScreeners");
287 }
288 }
289
290 if (!graph2D->GetN()) {
291 printf("Returned TGraph2D is empty: check type and side values\n");
292 }
293
294 graph2D->GetXaxis()->SetLabelOffset(0.0);
295 graph2D->GetYaxis()->SetLabelOffset(0.005);
296 graph2D->GetZaxis()->SetLabelOffset(-0.04);
297
298
299 return graph2D; // returns TGgraph2D object
300
301}
302
303
304//_____________________________________________________________________________
305
306TGraph *AliTPCTempMap::MakeGraphGradient(Int_t axis, Int_t side, Int_t nPoints)
307{
308 //
309 // Make graph from start time to end time of TempGradient in axis direction
310 // axis: 0 ... horizontal Temperature Gradient (X)
311 // 1 ... vertical Temperature Gradient (Y)
312 // 2 ... longitudenal Temperature Gradient (Z) (side is ignored)
313 // z gradient value based on OFC temperature sensors
314 // Caution!: better z gradient values through difference between
315 // param[0] A- and param[0] C-side !
316 // side for X and Y gradient:
317 // 0 ... Shaft Side (A)
318 // 1 ... Muon Side (C)
319 //
320
321 TVectorD param(3);
322 TLinearFitter *fitter = new TLinearFitter(3);
323
324 UInt_t fStartTime = ft->AliTPCSensorTempArray::GetStartTime();
325 UInt_t fEndTime = ft->AliTPCSensorTempArray::GetEndTime();
326
327 UInt_t stepTime = (fEndTime-fStartTime)/nPoints;
328
329 Double_t *x = new Double_t[nPoints];
330 Double_t *y = new Double_t[nPoints];
331 for (Int_t ip=0; ip<nPoints; ip++) {
332 x[ip] = fStartTime+ip*stepTime;
333 if (axis==2) {// Gradient in Z direction (based on OFC tempSensors)
334 fitter = GetLinearFitter(1, side, ip*stepTime);
335 } else {// Gradient in X or Y direction (based on TPC tempSensors)
336 fitter = GetLinearFitter(3, side, ip*stepTime);
337 }
338 fitter->GetParameters(param);
339 // multiplied by 500 since TempGradient is in [K/cm]
340 // (TPC diameter and length ~500cm)
341 if (axis==1) { // Y axis
342 y[ip] = param[2]*500;
343 } else { // X axis
344 y[ip] = param[1]*500;
345 }
346 }
347
348 TGraph *graph = new TGraph(nPoints,x,y);
349
350 fitter->~TLinearFitter();
351 delete [] x;
352 delete [] y;
353
354 graph->GetXaxis()->SetTimeDisplay(1);
355 graph->GetXaxis()->SetLabelOffset(0.02);
356 graph->GetXaxis()->SetTimeFormat("#splitline{%d/%m}{%H:%M}");
357
358 return graph;
359}
360
361//_____________________________________________________________________________
362
363Double_t AliTPCTempMap::GetTemperature(Double_t x, Double_t y, Double_t z, UInt_t timeSec)
364{
365 //
366 // Returns estimated Temperature at given position (x,y,z) at given time
367 // (timeSec) after starttime
368 // Method: so far just a linear interpolation between Linar fits of
369 // the TPC temperature sensors
370 // FIXME: 'Educated Fit' through FiniteElement Simulation results!
371 // FIXXME: Return 0? if x,y,z out of range
372 //
373
374 TVectorD paramA(3), paramC(3);
375 TLinearFitter *fitterA = new TLinearFitter(3);
376 TLinearFitter *fitterC = new TLinearFitter(3);
377
378 fitterA = GetLinearFitter(3, 0, timeSec);
379 fitterA->GetParameters(paramA);
380 fitterC = GetLinearFitter(3, 1, timeSec);
381 fitterC->GetParameters(paramC);
382
383 Double_t fvalA = paramA[0]+paramA[1]*x+paramA[2]*y;
384 Double_t fvalC = paramC[0]+paramC[1]*x+paramC[2]*y;
385
386 Double_t k = (fvalA-fvalC)/(2*247);
387 Double_t tempValue = fvalC+(fvalA-fvalC)/2+k*z;
388
389 fitterA->~TLinearFitter();
390 fitterC->~TLinearFitter();
391
392 return tempValue;
393}
394