[u/mrichter/AliRoot.git] / TPC / AliTPCTempMap.cxx

/**************************************************************************
 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 *                                                                        *
 * Author: The ALICE Off-line Project.                                    *
 * Contributors are mentioned in the code where appropriate.              *
 *                                                                        *
 * Permission to use, copy, modify and distribute this software and its   *
 * documentation strictly for non-commercial purposes is hereby granted   *
 * without fee, provided that the above copyright notice appears in all   *
 * copies and that both the copyright notice and this permission notice   *
 * appear in the supporting documentation. The authors make no claims     *
 * about the suitability of this software for any purpose. It is          *
 * provided "as is" without express or implied warranty.                  *
 **************************************************************************/


///////////////////////////////////////////////////////////////////////////////
//                                                                           //
//  TPC calibration class for temperature maps and tendencies                //
//  (based on TPC Temperature Sensors and FiniteElement Simulation)          //
//                                                                           //
//  Authors: Stefan Rossegger, Haavard Helstrup                              //
//                                                                           //
///////////////////////////////////////////////////////////////////////////////

#include "AliTPCSensorTempArray.h"
#include "TLinearFitter.h"
#include "TString.h"
#include "TGraph2D.h"
#include "TTimeStamp.h"

#include "AliTPCTempMap.h"


ClassImp(AliTPCTempMap)
  
  const char kStringFEsimulation[] = "FEsimulation.txt";

//_____________________________________________________________________________
AliTPCTempMap::AliTPCTempMap(AliTPCSensorTempArray *sensorDCS):
  TNamed(),
  fTempArray(0),
  fStringFEsimulation(kStringFEsimulation)
{
  //
  // AliTPCTempMap default constructor
  //

  fTempArray = sensorDCS;

}

//_____________________________________________________________________________
AliTPCTempMap::AliTPCTempMap(const AliTPCTempMap &c):
  TNamed(c),
  fTempArray(c.fTempArray),
  fStringFEsimulation(c.fStringFEsimulation)
{
  //
  // AliTPCTempMap copy constructor
  //

}

//_____________________________________________________________________________
AliTPCTempMap::~AliTPCTempMap()
{
  //
  // AliTPCTempMap destructor
  //
  
}

//_____________________________________________________________________________
AliTPCTempMap &AliTPCTempMap::operator=(const AliTPCTempMap &c)
{
  //
  // Assignment operator
  //

  if (this != &c) ((AliTPCTempMap &) c).Copy(*this);
  return *this;

}

//_____________________________________________________________________________
void AliTPCTempMap::Copy(TObject &c) const
{
  //
  // Copy function
  //
  
  TObject::Copy(c);
  
}

//_____________________________________________________________________________

Double_t AliTPCTempMap::GetTempGradientY(UInt_t timeSec, Int_t side){
 //
 // Extract Linear Vertical Temperature Gradient [K/cm] within the TPC on 
 // Shaft Side(A): 0
 // Muon  Side(C): 1
 // Values based on TemperatureSensors within the TPC ( type: 3 (TPC) )
 //
 // FIXME: Also return residual-distribution, covariance Matrix
 //        or simply chi2 for validity check? 
 //        -> better use GetLinearFitter - function in this case!
  
 TLinearFitter *fitter = new TLinearFitter(3,"x0++x1++x2");
 TVectorD param(3);
 Int_t i = 0;

 Int_t nsensors = fTempArray->NumSensors();
 for (Int_t isensor=0; isensor<nsensors; isensor++) { // loop over all sensors
   AliTPCSensorTemp *entry = (AliTPCSensorTemp*)fTempArray->GetSensorNum(isensor);
   
   if (entry->GetType()==3 && entry->GetSide()==side) { // take SensorType:TPC 
     Double_t x[3];
     x[0]=1;
     x[1]=entry->GetX();
     x[2]=entry->GetY();    
     Double_t y = fTempArray->GetValue(timeSec,isensor); // get temperature value
     fitter->AddPoint(x,y,1); // add values to LinearFitter
     i++;
   }

 }  
 fitter->Eval();
 fitter->GetParameters(param);

 fitter->~TLinearFitter();

 return param[2]; // return vertical (Y) tempGradient in [K/cm]
  
}

TLinearFitter *AliTPCTempMap::GetLinearFitter(Int_t type, Int_t side, TTimeStamp &stamp)
{
  //
  // absolute time stamp used
  // see AliTPCTempMap::GetLinearFitter(Int_t type, Int_t side, UInt_t timeSec) for details
  //
  Int_t timeSec = stamp.GetSec()-fTempArray->GetStartTime().GetSec();
  return GetLinearFitter(type,side,timeSec);
}

//_____________________________________________________________________________

TLinearFitter *AliTPCTempMap::GetLinearFitter(Int_t type, Int_t side, UInt_t timeSec)
{
  // 
  // Creates a TlinearFitter object for the desired region of the TPC 
  // (via choosen type and side of TPC temperature sensors) at a given 
  // timeSec (in secounds) after start time
  // type: 0 ... ReadOutChambers (ROC)
  //       1 ... OuterContainmentVessel (OFC)
  //       2 ... InnerContainmentVessel (IFC) + ThermalScreener (TS)
  //       3 ... Within the TPC (DriftVolume) (TPC)
  //       4 ... Only InnerContainmentVessel (IFC) 
  // side: Can be choosen for type 0 and 3 (otherwise it will be ignored in 
  //       in order to get all temperature sensors of interest)
  //       0 ... Shaft Side (A)
  //       1 ... Muon Side (C)
  // 

  TLinearFitter *fitter = new TLinearFitter(3);
  Double_t *x = new Double_t[3];
  Double_t y = 0;
  const Float_t kMinT=10, kMaxT =30, kMaxDelta=0.5;
  
  if (type == 1 || type == 2 || type == 4) {
    fitter->SetFormula("x0++x1++TMath::Sin(x2)"); // returns Z,Y gradient
  } else {
    fitter->SetFormula("x0++x1++x2"); // returns X,Y gradient
  }

  Int_t i = 0;
  Int_t nsensors = fTempArray->NumSensors();

  Float_t temps[1000];
  for (Int_t isensor=0; isensor<nsensors; isensor++) { // loop over all sensors
    AliTPCSensorTemp *entry = (AliTPCSensorTemp*)fTempArray->GetSensorNum(isensor);
    if (entry->GetType()==type && entry->GetSide()==side){
      Float_t temperature= fTempArray->GetValue(timeSec,isensor); // get temperature value
      if (temperature>kMinT && temperature<kMaxT) {temps[i]=temperature; i++;}
    }
  }
  Float_t medianTemp = TMath::Median(i, temps);
  if (i<3) return 0;
  Float_t rmsTemp = TMath::RMS(i, temps);
  
  i=0;
  
  for (Int_t isensor=0; isensor<nsensors; isensor++) { // loop over all sensors
    AliTPCSensorTemp *entry = (AliTPCSensorTemp*)fTempArray->GetSensorNum(isensor);
    
    if (type==0 || type==3) { // 'side' information used
      if (entry->GetType()==type && entry->GetSide()==side) {
	x[0]=1;
	x[1]=entry->GetX();
	x[2]=entry->GetY();    
	y = fTempArray->GetValue(timeSec,isensor); // get temperature value
	if (TMath::Abs(y-medianTemp)>kMaxDelta+4.*rmsTemp) continue;
	fitter->AddPoint(x,y,1); // add values to LinearFitter
	i++;
      }
    } else if (type==2) { // in case of IFC also usage of TS values
      if ((entry->GetType()==2) || (entry->GetType()==5)) {
	x[0]=1;
	x[1]=entry->GetZ();
	x[2]=entry->GetPhi();    
	y = fTempArray->GetValue(timeSec,isensor);
	if (TMath::Abs(y-medianTemp)>kMaxDelta+4.*rmsTemp) continue;
	fitter->AddPoint(x,y,1); 
	i++;
      }
    } else if (type==1){
      if (entry->GetType()==type) {
	x[0]=1;
	x[1]=entry->GetZ();
	x[2]=entry->GetPhi();    
	y = fTempArray->GetValue(timeSec,isensor);
	if (TMath::Abs(y-medianTemp)>kMaxDelta+4.*rmsTemp) continue;
	fitter->AddPoint(x,y,1);
	i++;	
      }
    } else if (type==4) { // ONLY IFC
      if (entry->GetType()==2) {
	x[0]=1;
	x[1]=entry->GetZ();
	x[2]=entry->GetPhi();    
	y = fTempArray->GetValue(timeSec,isensor);
	if (TMath::Abs(y-medianTemp)>kMaxDelta+4.*rmsTemp) continue;
	fitter->AddPoint(x,y,1); 
	i++;
      }
    }
  }  
  fitter->Eval();
  //fitter->EvalRobust(0.9); // Evaluates fitter
  
  delete [] x;

  return fitter; 

  // returns TLinearFitter object where Chi2, Fitparameters and residuals can 
  // be extracted via usual memberfunctions
  // example: fitter->GetParameters(param)
  // In case of type IFC or OFC, the parameters are the gradients in 
  // Z and Y direction (see fitformula)
  // Caution: Parameters are [K/cm] except Y at IFC,OFC ([K/radius]) 
}

//_____________________________________________________________________________

TGraph2D *AliTPCTempMap::GetTempMapsViaSensors(Int_t type, Int_t side, UInt_t timeSec)
{
  // 
  // Creates a TGraph2D object for the desired region of the TPC 
  // (via choosen type and side of TPC temperature sensors) at a given 
  // timeSec (in secounds) after start time
  // type: 0 ... ReadOutChambers (ROC)
  //       1 ... OuterContainmentVessel (OFC)
  //       2 ... InnerContainmentVessel (IFC) + ThermalScreener (TS)
  //       3 ... Within the TPC (DriftVolume) (TPC)
  // side: Can be choosen for type 0 and 3 (otherwise it will be ignored in 
  //       in order to get all temperature sensors of interest)
  //       0 ... A - side
  //       1 ... C - side
  // 

  TGraph2D *graph2D = new TGraph2D();

  Int_t i = 0;
  
  Int_t nsensors = fTempArray->NumSensors();
  for (Int_t isensor=0; isensor<nsensors; isensor++) { // loop over all sensors
    AliTPCSensorTemp *entry = (AliTPCSensorTemp*)fTempArray->GetSensorNum(isensor);

    Double_t x, y, z, r, phi, tempValue;
    x = entry->GetX();
    y = entry->GetY();
    z = entry->GetZ();
    r = entry->GetR();
    phi = entry->GetPhi();
    tempValue = fTempArray->GetValue(timeSec,isensor);
    //    printf("%d type %d: x=%lf y=%lf temp=%lf\n",isensor,entry->GetType(),x,y, tempValue);
    if (type==0 || type==3) { // 'side' information used
      if (entry->GetType()==type && entry->GetSide()==side) {
	graph2D->SetPoint(i,x,y,tempValue);
	i++;
      }
    } else if (type==2) { // in case of IFC also usage of TS values
      if (entry->GetType()==2 || entry->GetType()==5) {
	graph2D->SetPoint(i,z,phi,tempValue);
	i++;
      }
    } else if (type==1){
      if (entry->GetType()==type) {
	graph2D->SetPoint(i,z,phi,tempValue);
	i++;
      }
    }
  }  
  
  if (type==0 || type==3) {
    graph2D->GetXaxis()->SetTitle("X[cm]");
    graph2D->GetYaxis()->SetTitle("Y[cm]");
    if (type==0 && side==0) {
      graph2D->SetTitle("ROC A side");
    } else if (type==0 && side==1) {
      graph2D->SetTitle("ROC C side");
    } else if (type==3 && side==0) {
      graph2D->SetTitle("TPC A side (Inside the TPC)");
    } else if (type==3 && side==1) {
      graph2D->SetTitle("TPC C side (Inside the TPC)");
    }
  } else if (type==1 || type==2) {
    graph2D->GetXaxis()->SetTitle("Z[cm]");
    graph2D->GetYaxis()->SetTitle("Phi[RAD]");
    if (type==1) {
      graph2D->SetTitle("Outer Containment Vessel");
    } else if (type==2) {
      graph2D->SetTitle("Inner Containment Vessel");
    }
  }

  if (!graph2D->GetN()) {
    printf("Returned TGraph2D is empty: check type and side values\n");
  }

  graph2D->GetXaxis()->SetLabelOffset(0.0);
  graph2D->GetYaxis()->SetLabelOffset(0.005);
  graph2D->GetZaxis()->SetLabelOffset(-0.04);
  

  return graph2D; // returns TGgraph2D object
  
}


//_____________________________________________________________________________

TGraph *AliTPCTempMap::MakeGraphGradient(Int_t axis, Int_t side, Int_t nPoints)
{  
  //
  // Make graph from start time to end time of TempGradient in axis direction
  // axis: 0 ... horizontal Temperature Gradient (X)
  //       1 ... vertical Temperature Gradient (Y)
  //       2 ... longitudenal Temperature Gradient (Z) (side is ignored) 
  //             z gradient value based on OFC temperature sensors
  //             Caution!: better z gradient values through difference between 
  //             param[0] A- and param[0] C-side !
  // side for X and Y gradient: 
  //       0 ... Shaft Side (A)
  //       1 ... Muon Side (C)
  //
  
  TVectorD param(3);
  TLinearFitter *fitter = new TLinearFitter(3);

  UInt_t fStartTime = fTempArray->AliTPCSensorTempArray::GetStartTime();
  UInt_t fEndTime = fTempArray->AliTPCSensorTempArray::GetEndTime();
  
  UInt_t stepTime = (fEndTime-fStartTime)/nPoints;

  Double_t *x = new Double_t[nPoints];
  Double_t *y = new Double_t[nPoints];
  for (Int_t ip=0; ip<nPoints; ip++) {
    x[ip] = fStartTime+ip*stepTime;
    if (axis==2) {// Gradient in Z direction (based on OFC tempSensors)
      fitter = GetLinearFitter(1, side, ip*stepTime);
    } else {// Gradient in X or Y direction (based on TPC tempSensors)
      fitter = GetLinearFitter(3, side, ip*stepTime);
    }
    fitter->GetParameters(param);
    // multiplied by 500 since TempGradient is in [K/cm] 
    // (TPC diameter and length ~500cm)
    if (axis==1) { // Y axis
      y[ip] = param[2]*500;
    } else { // X axis
      y[ip] = param[1]*500;
    }
  }

  TGraph *graph = new TGraph(nPoints,x,y);

  fitter->~TLinearFitter(); 
  delete [] x;
  delete [] y;

  graph->GetXaxis()->SetTimeDisplay(1);
  graph->GetXaxis()->SetLabelOffset(0.02);
  graph->GetXaxis()->SetTimeFormat("#splitline{%d/%m}{%H:%M}");

  return graph;
}

//_____________________________________________________________________________

Double_t AliTPCTempMap::GetTemperature(Double_t x, Double_t y, Double_t z, UInt_t timeSec)
{  
  //
  // Returns estimated Temperature at given position (x,y,z) at given time 
  // (timeSec) after starttime
  // Method: so far just a linear interpolation between Linar fits of 
  //         the TPC temperature sensors
  //         FIXME: 'Educated Fit' through FiniteElement Simulation results!
  // FIXXME: Return 0? if x,y,z out of range
  //
  
  TVectorD paramA(3), paramC(3);
  TLinearFitter *fitterA = new TLinearFitter(3);
  TLinearFitter *fitterC = new TLinearFitter(3);

  fitterA = GetLinearFitter(3, 0, timeSec);
  fitterA->GetParameters(paramA);
  fitterC = GetLinearFitter(3, 1, timeSec);
  fitterC->GetParameters(paramC);

  Double_t fvalA = paramA[0]+paramA[1]*x+paramA[2]*y;
  Double_t fvalC = paramC[0]+paramC[1]*x+paramC[2]*y;

  Double_t k = (fvalA-fvalC)/(2*247);
  Double_t tempValue = fvalC+(fvalA-fvalC)/2+k*z;

  fitterA->~TLinearFitter();
  fitterC->~TLinearFitter();

  return tempValue;
}
Commit	Line	Data
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"
f59cd9d0	30	#include "TTimeStamp.h"
1209231c	31
	32	#include "AliTPCTempMap.h"
	33
	34
	35	ClassImp(AliTPCTempMap)
	36
	37	const char kStringFEsimulation[] = "FEsimulation.txt";
	38
	39	//_____________________________________________________________________________
	40	AliTPCTempMap::AliTPCTempMap(AliTPCSensorTempArray *sensorDCS):
	41	TNamed(),
f59cd9d0	42	fTempArray(0),
1209231c	43	fStringFEsimulation(kStringFEsimulation)
	44	{
	45	//
	46	// AliTPCTempMap default constructor
	47	//
	48
f59cd9d0	49	fTempArray = sensorDCS;
1209231c	50
	51	}
	52
	53	//_____________________________________________________________________________
	54	AliTPCTempMap::AliTPCTempMap(const AliTPCTempMap &c):
	55	TNamed(c),
f59cd9d0	56	fTempArray(c.fTempArray),
1209231c	57	fStringFEsimulation(c.fStringFEsimulation)
	58	{
	59	//
	60	// AliTPCTempMap copy constructor
	61	//
	62
	63	}
	64
	65	//_____________________________________________________________________________
	66	AliTPCTempMap::~AliTPCTempMap()
	67	{
	68	//
	69	// AliTPCTempMap destructor
	70	//
	71
	72	}
	73
	74	//_____________________________________________________________________________
	75	AliTPCTempMap &AliTPCTempMap::operator=(const AliTPCTempMap &c)
	76	{
	77	//
	78	// Assignment operator
	79	//
	80
	81	if (this != &c) ((AliTPCTempMap &) c).Copy(*this);
	82	return *this;
	83
	84	}
	85
	86	//_____________________________________________________________________________
	87	void AliTPCTempMap::Copy(TObject &c) const
	88	{
	89	//
	90	// Copy function
	91	//
	92
	93	TObject::Copy(c);
	94
	95	}
	96
	97	//_____________________________________________________________________________
	98
	99	Double_t AliTPCTempMap::GetTempGradientY(UInt_t timeSec, Int_t side){
	100	//
	101	// Extract Linear Vertical Temperature Gradient [K/cm] within the TPC on
	102	// Shaft Side(A): 0
	103	// Muon Side(C): 1
	104	// Values based on TemperatureSensors within the TPC ( type: 3 (TPC) )
	105	//
	106	// FIXME: Also return residual-distribution, covariance Matrix
	107	// or simply chi2 for validity check?
	108	// -> better use GetLinearFitter - function in this case!
	109
b479e253	110	TLinearFitter *fitter = new TLinearFitter(3,"x0++x1++x2");
1209231c	111	TVectorD param(3);
	112	Int_t i = 0;
	113
f59cd9d0	114	Int_t nsensors = fTempArray->NumSensors();
1209231c	115	for (Int_t isensor=0; isensor<nsensors; isensor++) { // loop over all sensors
f59cd9d0	116	AliTPCSensorTemp entry = (AliTPCSensorTemp)fTempArray->GetSensorNum(isensor);
1209231c	117
	118	if (entry->GetType()==3 && entry->GetSide()==side) { // take SensorType:TPC
	119	Double_t x[3];
	120	x[0]=1;
	121	x[1]=entry->GetX();
	122	x[2]=entry->GetY();
f59cd9d0	123	Double_t y = fTempArray->GetValue(timeSec,isensor); // get temperature value
b479e253	124	fitter->AddPoint(x,y,1); // add values to LinearFitter
1209231c	125	i++;
	126	}
	127
	128	}
b479e253	129	fitter->Eval();
	130	fitter->GetParameters(param);
	131
	132	fitter->~TLinearFitter();
1209231c	133
	134	return param[2]; // return vertical (Y) tempGradient in [K/cm]
	135
	136	}
	137
f59cd9d0	138	TLinearFitter *AliTPCTempMap::GetLinearFitter(Int_t type, Int_t side, TTimeStamp &stamp)
	139	{
	140	//
	141	// absolute time stamp used
	142	// see AliTPCTempMap::GetLinearFitter(Int_t type, Int_t side, UInt_t timeSec) for details
	143	//
148518a2	144	Int_t timeSec = stamp.GetSec()-fTempArray->GetStartTime().GetSec();
f59cd9d0	145	return GetLinearFitter(type,side,timeSec);
	146	}
	147
1209231c	148	//_____________________________________________________________________________
	149
	150	TLinearFitter *AliTPCTempMap::GetLinearFitter(Int_t type, Int_t side, UInt_t timeSec)
	151	{
	152	//
	153	// Creates a TlinearFitter object for the desired region of the TPC
	154	// (via choosen type and side of TPC temperature sensors) at a given
	155	// timeSec (in secounds) after start time
	156	// type: 0 ... ReadOutChambers (ROC)
	157	// 1 ... OuterContainmentVessel (OFC)
	158	// 2 ... InnerContainmentVessel (IFC) + ThermalScreener (TS)
	159	// 3 ... Within the TPC (DriftVolume) (TPC)
d0bd4fcc	160	// 4 ... Only InnerContainmentVessel (IFC)
1209231c	161	// side: Can be choosen for type 0 and 3 (otherwise it will be ignored in
	162	// in order to get all temperature sensors of interest)
	163	// 0 ... Shaft Side (A)
	164	// 1 ... Muon Side (C)
	165	//
	166
	167	TLinearFitter *fitter = new TLinearFitter(3);
	168	Double_t *x = new Double_t[3];
	169	Double_t y = 0;
f59cd9d0	170	const Float_t kMinT=10, kMaxT =30, kMaxDelta=0.5;
f59cd9d0	171
d0bd4fcc	172	if (type == 1 \|\| type == 2 \|\| type == 4) {
1209231c	173	fitter->SetFormula("x0++x1++TMath::Sin(x2)"); // returns Z,Y gradient
	174	} else {
	175	fitter->SetFormula("x0++x1++x2"); // returns X,Y gradient
	176	}
	177
	178	Int_t i = 0;
f59cd9d0	179	Int_t nsensors = fTempArray->NumSensors();
	180
	181	Float_t temps[1000];
	182	for (Int_t isensor=0; isensor<nsensors; isensor++) { // loop over all sensors
	183	AliTPCSensorTemp entry = (AliTPCSensorTemp)fTempArray->GetSensorNum(isensor);
	184	if (entry->GetType()==type && entry->GetSide()==side){
	185	Float_t temperature= fTempArray->GetValue(timeSec,isensor); // get temperature value
	186	if (temperature>kMinT && temperature<kMaxT) {temps[i]=temperature; i++;}
	187	}
	188	}
	189	Float_t medianTemp = TMath::Median(i, temps);
	190	if (i<3) return 0;
	191	Float_t rmsTemp = TMath::RMS(i, temps);
	192
	193	i=0;
	194
1209231c	195	for (Int_t isensor=0; isensor<nsensors; isensor++) { // loop over all sensors
f59cd9d0	196	AliTPCSensorTemp entry = (AliTPCSensorTemp)fTempArray->GetSensorNum(isensor);
1209231c	197
	198	if (type==0 \|\| type==3) { // 'side' information used
	199	if (entry->GetType()==type && entry->GetSide()==side) {
	200	x[0]=1;
	201	x[1]=entry->GetX();
	202	x[2]=entry->GetY();
f59cd9d0	203	y = fTempArray->GetValue(timeSec,isensor); // get temperature value
f59cd9d0	204	if (TMath::Abs(y-medianTemp)>kMaxDelta+4.*rmsTemp) continue;
1209231c	205	fitter->AddPoint(x,y,1); // add values to LinearFitter
	206	i++;
	207	}
	208	} else if (type==2) { // in case of IFC also usage of TS values
	209	if ((entry->GetType()==2) \|\| (entry->GetType()==5)) {
	210	x[0]=1;
	211	x[1]=entry->GetZ();
	212	x[2]=entry->GetPhi();
f59cd9d0	213	y = fTempArray->GetValue(timeSec,isensor);
f59cd9d0	214	if (TMath::Abs(y-medianTemp)>kMaxDelta+4.*rmsTemp) continue;
1209231c	215	fitter->AddPoint(x,y,1);
	216	i++;
	217	}
	218	} else if (type==1){
	219	if (entry->GetType()==type) {
	220	x[0]=1;
	221	x[1]=entry->GetZ();
	222	x[2]=entry->GetPhi();
f59cd9d0	223	y = fTempArray->GetValue(timeSec,isensor);
f59cd9d0	224	if (TMath::Abs(y-medianTemp)>kMaxDelta+4.*rmsTemp) continue;
1209231c	225	fitter->AddPoint(x,y,1);
	226	i++;
	227	}
d0bd4fcc	228	} else if (type==4) { // ONLY IFC
	229	if (entry->GetType()==2) {
	230	x[0]=1;
	231	x[1]=entry->GetZ();
	232	x[2]=entry->GetPhi();
f59cd9d0	233	y = fTempArray->GetValue(timeSec,isensor);
f59cd9d0	234	if (TMath::Abs(y-medianTemp)>kMaxDelta+4.*rmsTemp) continue;
d0bd4fcc	235	fitter->AddPoint(x,y,1);
	236	i++;
	237	}
1209231c	238	}
1209231c	239	}
f59cd9d0	240	fitter->Eval();
f59cd9d0	241	//fitter->EvalRobust(0.9); // Evaluates fitter
1209231c	242
	243	delete [] x;
	244
	245	return fitter;
	246
	247	// returns TLinearFitter object where Chi2, Fitparameters and residuals can
	248	// be extracted via usual memberfunctions
b479e253	249	// example: fitter->GetParameters(param)
1209231c	250	// In case of type IFC or OFC, the parameters are the gradients in
	251	// Z and Y direction (see fitformula)
	252	// Caution: Parameters are [K/cm] except Y at IFC,OFC ([K/radius])
	253	}
	254
	255	//_____________________________________________________________________________
	256
	257	TGraph2D *AliTPCTempMap::GetTempMapsViaSensors(Int_t type, Int_t side, UInt_t timeSec)
	258	{
	259	//
	260	// Creates a TGraph2D object for the desired region of the TPC
	261	// (via choosen type and side of TPC temperature sensors) at a given
	262	// timeSec (in secounds) after start time
	263	// type: 0 ... ReadOutChambers (ROC)
	264	// 1 ... OuterContainmentVessel (OFC)
	265	// 2 ... InnerContainmentVessel (IFC) + ThermalScreener (TS)
	266	// 3 ... Within the TPC (DriftVolume) (TPC)
	267	// side: Can be choosen for type 0 and 3 (otherwise it will be ignored in
	268	// in order to get all temperature sensors of interest)
55f06b51	269	// 0 ... A - side
55f06b51	270	// 1 ... C - side
1209231c	271	//
	272
	273	TGraph2D *graph2D = new TGraph2D();
	274
	275	Int_t i = 0;
	276
f59cd9d0	277	Int_t nsensors = fTempArray->NumSensors();
1209231c	278	for (Int_t isensor=0; isensor<nsensors; isensor++) { // loop over all sensors
f59cd9d0	279	AliTPCSensorTemp entry = (AliTPCSensorTemp)fTempArray->GetSensorNum(isensor);
1209231c	280
	281	Double_t x, y, z, r, phi, tempValue;
	282	x = entry->GetX();
	283	y = entry->GetY();
	284	z = entry->GetZ();
	285	r = entry->GetR();
	286	phi = entry->GetPhi();
f59cd9d0	287	tempValue = fTempArray->GetValue(timeSec,isensor);
55f06b51	288	// printf("%d type %d: x=%lf y=%lf temp=%lf\n",isensor,entry->GetType(),x,y, tempValue);
1209231c	289	if (type==0 \|\| type==3) { // 'side' information used
	290	if (entry->GetType()==type && entry->GetSide()==side) {
	291	graph2D->SetPoint(i,x,y,tempValue);
	292	i++;
	293	}
	294	} else if (type==2) { // in case of IFC also usage of TS values
	295	if (entry->GetType()==2 \|\| entry->GetType()==5) {
	296	graph2D->SetPoint(i,z,phi,tempValue);
	297	i++;
	298	}
	299	} else if (type==1){
	300	if (entry->GetType()==type) {
	301	graph2D->SetPoint(i,z,phi,tempValue);
	302	i++;
	303	}
	304	}
	305	}
	306
	307	if (type==0 \|\| type==3) {
	308	graph2D->GetXaxis()->SetTitle("X[cm]");
	309	graph2D->GetYaxis()->SetTitle("Y[cm]");
	310	if (type==0 && side==0) {
55f06b51	311	graph2D->SetTitle("ROC A side");
1209231c	312	} else if (type==0 && side==1) {
55f06b51	313	graph2D->SetTitle("ROC C side");
1209231c	314	} else if (type==3 && side==0) {
55f06b51	315	graph2D->SetTitle("TPC A side (Inside the TPC)");
1209231c	316	} else if (type==3 && side==1) {
55f06b51	317	graph2D->SetTitle("TPC C side (Inside the TPC)");
1209231c	318	}
	319	} else if (type==1 \|\| type==2) {
	320	graph2D->GetXaxis()->SetTitle("Z[cm]");
	321	graph2D->GetYaxis()->SetTitle("Phi[RAD]");
	322	if (type==1) {
	323	graph2D->SetTitle("Outer Containment Vessel");
	324	} else if (type==2) {
55f06b51	325	graph2D->SetTitle("Inner Containment Vessel");
1209231c	326	}
	327	}
	328
	329	if (!graph2D->GetN()) {
	330	printf("Returned TGraph2D is empty: check type and side values\n");
	331	}
	332
	333	graph2D->GetXaxis()->SetLabelOffset(0.0);
	334	graph2D->GetYaxis()->SetLabelOffset(0.005);
	335	graph2D->GetZaxis()->SetLabelOffset(-0.04);
	336
	337
	338	return graph2D; // returns TGgraph2D object
	339
	340	}
	341
	342
	343	//_____________________________________________________________________________
	344
	345	TGraph *AliTPCTempMap::MakeGraphGradient(Int_t axis, Int_t side, Int_t nPoints)
	346	{
	347	//
	348	// Make graph from start time to end time of TempGradient in axis direction
	349	// axis: 0 ... horizontal Temperature Gradient (X)
	350	// 1 ... vertical Temperature Gradient (Y)
	351	// 2 ... longitudenal Temperature Gradient (Z) (side is ignored)
	352	// z gradient value based on OFC temperature sensors
	353	// Caution!: better z gradient values through difference between
	354	// param[0] A- and param[0] C-side !
	355	// side for X and Y gradient:
	356	// 0 ... Shaft Side (A)
	357	// 1 ... Muon Side (C)
	358	//
	359
	360	TVectorD param(3);
	361	TLinearFitter *fitter = new TLinearFitter(3);
	362
f59cd9d0	363	UInt_t fStartTime = fTempArray->AliTPCSensorTempArray::GetStartTime();
f59cd9d0	364	UInt_t fEndTime = fTempArray->AliTPCSensorTempArray::GetEndTime();
1209231c	365
	366	UInt_t stepTime = (fEndTime-fStartTime)/nPoints;
	367
	368	Double_t *x = new Double_t[nPoints];
	369	Double_t *y = new Double_t[nPoints];
	370	for (Int_t ip=0; ip<nPoints; ip++) {
	371	x[ip] = fStartTime+ip*stepTime;
	372	if (axis==2) {// Gradient in Z direction (based on OFC tempSensors)
	373	fitter = GetLinearFitter(1, side, ip*stepTime);
	374	} else {// Gradient in X or Y direction (based on TPC tempSensors)
	375	fitter = GetLinearFitter(3, side, ip*stepTime);
	376	}
	377	fitter->GetParameters(param);
	378	// multiplied by 500 since TempGradient is in [K/cm]
	379	// (TPC diameter and length ~500cm)
	380	if (axis==1) { // Y axis
	381	y[ip] = param[2]*500;
	382	} else { // X axis
	383	y[ip] = param[1]*500;
	384	}
	385	}
	386
	387	TGraph *graph = new TGraph(nPoints,x,y);
	388
	389	fitter->~TLinearFitter();
	390	delete [] x;
	391	delete [] y;
	392
	393	graph->GetXaxis()->SetTimeDisplay(1);
	394	graph->GetXaxis()->SetLabelOffset(0.02);
	395	graph->GetXaxis()->SetTimeFormat("#splitline{%d/%m}{%H:%M}");
	396
	397	return graph;
	398	}
	399
	400	//_____________________________________________________________________________
	401
	402	Double_t AliTPCTempMap::GetTemperature(Double_t x, Double_t y, Double_t z, UInt_t timeSec)
	403	{
	404	//
	405	// Returns estimated Temperature at given position (x,y,z) at given time
	406	// (timeSec) after starttime
	407	// Method: so far just a linear interpolation between Linar fits of
	408	// the TPC temperature sensors
	409	// FIXME: 'Educated Fit' through FiniteElement Simulation results!
	410	// FIXXME: Return 0? if x,y,z out of range
	411	//
	412
	413	TVectorD paramA(3), paramC(3);
	414	TLinearFitter *fitterA = new TLinearFitter(3);
	415	TLinearFitter *fitterC = new TLinearFitter(3);
	416
	417	fitterA = GetLinearFitter(3, 0, timeSec);
	418	fitterA->GetParameters(paramA);
	419	fitterC = GetLinearFitter(3, 1, timeSec);
	420	fitterC->GetParameters(paramC);
	421
	422	Double_t fvalA = paramA[0]+paramA[1]x+paramA[2]y;
	423	Double_t fvalC = paramC[0]+paramC[1]x+paramC[2]y;
	424
	425	Double_t k = (fvalA-fvalC)/(2*247);
	426	Double_t tempValue = fvalC+(fvalA-fvalC)/2+k*z;
	427
	428	fitterA->~TLinearFitter();
429	fitterC->~TLinearFitter();
430
431	return tempValue;
432	}
433