[u/mrichter/AliRoot.git] / TOF / AliTOFRunParams.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.                  *
 **************************************************************************/

// *
// *
// *
// * this class defines the TOF object to be stored
// * in OCDB on a run-by-run basis in order to have the measurement
// * of the time evolution of T0 and of TOF resolution including
// * average T0 uncertainty
// *
// *
// *

#include "AliTOFRunParams.h"
#include "TGraph.h"

ClassImp(AliTOFRunParams)

//_________________________________________________________

AliTOFRunParams::AliTOFRunParams() :
  TObject(),
  fNPoints(0),
  fTimestamp(NULL),
  fT0(NULL),
  fTOFResolution(NULL),
  fT0Spread(NULL),
  fNRuns(0),
  fRunNb(NULL),
  fRunFirstPoint(NULL),
  fRunLastPoint(NULL)
{
  /*
   * default constructor
   */
}

//_________________________________________________________

AliTOFRunParams::AliTOFRunParams(Int_t nPoints, Int_t nRuns) :
  TObject(),
  fNPoints(nPoints),
  fTimestamp(new UInt_t[nPoints]),
  fT0(new Float_t[nPoints]),
  fTOFResolution(new Float_t[nPoints]),
  fT0Spread(new Float_t[nPoints]),
  fNRuns(nRuns),
  fRunNb(new UInt_t[nRuns]),
  fRunFirstPoint(new UInt_t[nRuns]),
  fRunLastPoint(new UInt_t[nRuns])
{
  /*
   * standard constructor
   */
}

//_________________________________________________________

AliTOFRunParams::~AliTOFRunParams()
{
  /*
   * default destructor
   */

  if (fTimestamp) delete [] fTimestamp;
  if (fT0) delete [] fT0;
  if (fTOFResolution) delete [] fTOFResolution;
  if (fT0Spread) delete [] fT0Spread;
  if (fRunNb) delete [] fRunNb;
  if (fRunFirstPoint) delete [] fRunFirstPoint;
  if (fRunLastPoint) delete [] fRunLastPoint;
}

//_________________________________________________________

AliTOFRunParams::AliTOFRunParams(const AliTOFRunParams &source) :
  TObject(source),
  fNPoints(source.fNPoints),
  fTimestamp(new UInt_t[source.fNPoints]),
  fT0(new Float_t[source.fNPoints]),
  fTOFResolution(new Float_t[source.fNPoints]),
  fT0Spread(new Float_t[source.fNPoints]),
  fNRuns(source.fNRuns),
  fRunNb(new UInt_t[source.fNRuns]),
  fRunFirstPoint(new UInt_t[source.fNRuns]),
  fRunLastPoint(new UInt_t[source.fNRuns])
{
  /*
   * copy constructor
   */

  for (Int_t i = 0; i < fNPoints; i++) {
    fTimestamp[i] = source.fTimestamp[i];
    fT0[i] = source.fT0[i];
    fTOFResolution[i] = source.fTOFResolution[i];
    fT0Spread[i] = source.fT0Spread[i];
  }

  for (Int_t i = 0; i < fNRuns; i++) {
    fRunNb[i] = source.fRunNb[i];
    fRunFirstPoint[i] = source.fRunFirstPoint[i];
    fRunLastPoint[i] = source.fRunLastPoint[i];
  }
  
}

//_________________________________________________________

AliTOFRunParams &
AliTOFRunParams::operator=(const AliTOFRunParams &source)
{
  /*
   * operator=
   */

  if (this == &source) return *this;
  TObject::operator=(source);
  
  if (fNPoints != source.fNPoints) {
    if (fTimestamp) delete [] fTimestamp;
    if (fT0) delete [] fT0;
    if (fTOFResolution) delete [] fTOFResolution;
    if (fT0Spread) delete [] fT0Spread;
    fNPoints = source.fNPoints;
    fTimestamp = new UInt_t[source.fNPoints];
    fT0 = new Float_t[source.fNPoints];
    fTOFResolution = new Float_t[source.fNPoints];
    fT0Spread = new Float_t[source.fNPoints];
  }

  for (Int_t i = 0; i < fNPoints; i++) {
    fTimestamp[i] = source.fTimestamp[i];
    fT0[i] = source.fT0[i];
    fTOFResolution[i] = source.fTOFResolution[i];
    fT0Spread[i] = source.fT0Spread[i];
  }

  if (fNRuns != source.fNRuns) {
    if (fRunNb) delete [] fRunNb;
    if (fRunFirstPoint) delete [] fRunFirstPoint;
    if (fRunLastPoint) delete [] fRunLastPoint;
    fNRuns = source.fNRuns;
    fRunNb = new UInt_t[source.fNRuns];
    fRunFirstPoint = new UInt_t[source.fNRuns];
    fRunLastPoint = new UInt_t[source.fNRuns];
  }

  for (Int_t i = 0; i < fNRuns; i++) {
    fRunNb[i] = source.fRunNb[i];
    fRunFirstPoint[i] = source.fRunFirstPoint[i];
    fRunLastPoint[i] = source.fRunLastPoint[i];
  }

  return *this;
}

//_________________________________________________________

Float_t
AliTOFRunParams::EvalT0(UInt_t timestamp)
{
  /*
   * eval T0
   */

  /* critical cases:
     1. no measurement -> 0.
     2. single measurement -> single value
     3. timestamp before first measurement -> first value
     4. timestamp after last measurement -> last value
  */
  if (fNPoints <= 0 || !fT0 || !fTimestamp) return 0.;
  if (fNPoints == 1) return fT0[0];
  if (timestamp <= fTimestamp[0]) return fT0[0];
  if (timestamp >= fTimestamp[fNPoints - 1]) return fT0[fNPoints - 1];

  /* interpolate value */
  Int_t ipoint;
  for (ipoint = 0; ipoint < fNPoints - 1; ipoint++)
    if (timestamp >= fTimestamp[ipoint] && timestamp < fTimestamp[ipoint + 1])
      break;
  Float_t coeff = (fT0[ipoint + 1] - fT0[ipoint]) / (Float_t)(fTimestamp[ipoint + 1] - fTimestamp[ipoint]);
  Float_t t0 = fT0[ipoint] + coeff * (timestamp - fTimestamp[ipoint]);
  
  return t0;
}

//_________________________________________________________

Float_t
AliTOFRunParams::EvalTOFResolution(UInt_t timestamp)
{
  /*
   * eval TOF resolution
   */

  /* critical cases:
     1. no measurement -> 0.
     2. single measurement -> single value
     3. timestamp before first measurement -> first value
     4. timestamp after last measurement -> last value
  */
  if (fNPoints <= 0 || !fTOFResolution || !fTimestamp) return 0.;
  if (fNPoints == 1) return fTOFResolution[0];
  if (timestamp <= fTimestamp[0]) return fTOFResolution[0];
  if (timestamp >= fTimestamp[fNPoints - 1]) return fTOFResolution[fNPoints - 1];

  /* interpolate value */
  Int_t ipoint;
  for (ipoint = 0; ipoint < fNPoints - 1; ipoint++)
    if (timestamp >= fTimestamp[ipoint] && timestamp < fTimestamp[ipoint + 1])
      break;
  Float_t coeff = (fTOFResolution[ipoint + 1] - fTOFResolution[ipoint]) / (Float_t)(fTimestamp[ipoint + 1] - fTimestamp[ipoint]);
  Float_t reso = fTOFResolution[ipoint] + coeff * (timestamp - fTimestamp[ipoint]);
  
  return reso;
}

//_________________________________________________________

Float_t
AliTOFRunParams::EvalT0Spread(UInt_t timestamp)
{
  /*
   * eval T0 spread
   */

  /* critical cases:
     1. no measurement -> 0.
     2. single measurement -> single value
     3. timestamp before first measurement -> first value
     4. timestamp after last measurement -> last value
  */
  if (fNPoints <= 0 || !fT0Spread || !fTimestamp) return 0.;
  if (fNPoints == 1) return fT0Spread[0];
  if (timestamp <= fTimestamp[0]) return fT0Spread[0];
  if (timestamp >= fTimestamp[fNPoints - 1]) return fT0Spread[fNPoints - 1];

  /* interpolate value */
  Int_t ipoint;
  for (ipoint = 0; ipoint < fNPoints - 1; ipoint++)
    if (timestamp >= fTimestamp[ipoint] && timestamp < fTimestamp[ipoint + 1])
      break;
  Float_t coeff = (fT0Spread[ipoint + 1] - fT0Spread[ipoint]) / (Float_t)(fTimestamp[ipoint + 1] - fTimestamp[ipoint]);
  Float_t spread = fT0Spread[ipoint] + coeff * (timestamp - fTimestamp[ipoint]);
  
  return spread;
}

//_________________________________________________________

Float_t
AliTOFRunParams::Average(Float_t *data, Int_t first, Int_t last)
{
  /*
   * average
   */

  if (first < 0) first = 0;
  if (last >= fNPoints) last = fNPoints - 1;
  Float_t value = 0.;
  Int_t npt = 0;
  for (Int_t i = first; i <= last; i++) {
    value += data[i];
    npt++;
  }
  value /= npt;
  return value;

}

//_________________________________________________________

Float_t
AliTOFRunParams::Average(Float_t *data, UInt_t runNb)
{
  /*
   * average
   */

  /* critical cases:
     1. no measurement -> 0.
     2. no runNb structure -> average over all points
     3. runNb not found -> average over all points
  */
  if (fNPoints <= 0 || !fT0 || !fTimestamp) return 0.;
  if (fNRuns <= 0 || !fRunNb || !fRunFirstPoint || !fRunLastPoint) return Average(data, 0, fNPoints - 1);


  /* search for runNb */
  UInt_t runPoint = 0;
  Bool_t gotRunNb = kFALSE;
  for (Int_t irun = 0; irun < fNRuns; irun++) {
    if (fRunNb[irun] == runNb) {
      runPoint = irun;
      gotRunNb = kTRUE;
      break;
    }
  }
  if (!gotRunNb) return Average(data, 0, fNPoints - 1);

  /* average between first and last run points */
  UInt_t firstPoint = fRunFirstPoint[runPoint];
  UInt_t lastPoint = fRunLastPoint[runPoint];
  return Average(data, firstPoint, lastPoint);

}

//_________________________________________________________

TGraph *
AliTOFRunParams::DrawGraph(Float_t *data, Option_t* option)
{
  /*
   * draw
   */

  if (fNPoints == 0 || !data || !fTimestamp) return NULL;

  Float_t ts[1000000];
  for (Int_t i = 0; i < fNPoints; i++)
    ts[i] = fTimestamp[i];

  TGraph *graph = new TGraph(fNPoints, ts, data);
  graph->Draw(option);
  return graph;
}
Commit	Line	Data
f04b3a69	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	// * this class defines the TOF object to be stored
	20	// * in OCDB on a run-by-run basis in order to have the measurement
	21	// * of the time evolution of T0 and of TOF resolution including
	22	// * average T0 uncertainty
	23	// *
	24	// *
	25	// *
	26
	27	#include "AliTOFRunParams.h"
53408dc1	28	#include "TGraph.h"
f04b3a69	29
	30	ClassImp(AliTOFRunParams)
	31
	32	//_________________________________________________________
	33
	34	AliTOFRunParams::AliTOFRunParams() :
	35	TObject(),
	36	fNPoints(0),
	37	fTimestamp(NULL),
	38	fT0(NULL),
	39	fTOFResolution(NULL),
53408dc1	40	fT0Spread(NULL),
	41	fNRuns(0),
	42	fRunNb(NULL),
	43	fRunFirstPoint(NULL),
	44	fRunLastPoint(NULL)
f04b3a69	45	{
	46	/*
	47	* default constructor
	48	*/
	49	}
	50
	51	//_________________________________________________________
	52
53408dc1	53	AliTOFRunParams::AliTOFRunParams(Int_t nPoints, Int_t nRuns) :
f04b3a69	54	TObject(),
	55	fNPoints(nPoints),
	56	fTimestamp(new UInt_t[nPoints]),
	57	fT0(new Float_t[nPoints]),
	58	fTOFResolution(new Float_t[nPoints]),
53408dc1	59	fT0Spread(new Float_t[nPoints]),
	60	fNRuns(nRuns),
	61	fRunNb(new UInt_t[nRuns]),
	62	fRunFirstPoint(new UInt_t[nRuns]),
	63	fRunLastPoint(new UInt_t[nRuns])
f04b3a69	64	{
	65	/*
	66	* standard constructor
	67	*/
	68	}
	69
	70	//_________________________________________________________
	71
	72	AliTOFRunParams::~AliTOFRunParams()
	73	{
	74	/*
	75	* default destructor
	76	*/
	77
	78	if (fTimestamp) delete [] fTimestamp;
	79	if (fT0) delete [] fT0;
	80	if (fTOFResolution) delete [] fTOFResolution;
	81	if (fT0Spread) delete [] fT0Spread;
53408dc1	82	if (fRunNb) delete [] fRunNb;
	83	if (fRunFirstPoint) delete [] fRunFirstPoint;
	84	if (fRunLastPoint) delete [] fRunLastPoint;
f04b3a69	85	}
	86
	87	//_________________________________________________________
	88
	89	AliTOFRunParams::AliTOFRunParams(const AliTOFRunParams &source) :
	90	TObject(source),
	91	fNPoints(source.fNPoints),
	92	fTimestamp(new UInt_t[source.fNPoints]),
	93	fT0(new Float_t[source.fNPoints]),
	94	fTOFResolution(new Float_t[source.fNPoints]),
53408dc1	95	fT0Spread(new Float_t[source.fNPoints]),
	96	fNRuns(source.fNRuns),
	97	fRunNb(new UInt_t[source.fNRuns]),
	98	fRunFirstPoint(new UInt_t[source.fNRuns]),
	99	fRunLastPoint(new UInt_t[source.fNRuns])
f04b3a69	100	{
	101	/*
	102	* copy constructor
	103	*/
	104
	105	for (Int_t i = 0; i < fNPoints; i++) {
	106	fTimestamp[i] = source.fTimestamp[i];
	107	fT0[i] = source.fT0[i];
	108	fTOFResolution[i] = source.fTOFResolution[i];
	109	fT0Spread[i] = source.fT0Spread[i];
	110	}
53408dc1	111
	112	for (Int_t i = 0; i < fNRuns; i++) {
	113	fRunNb[i] = source.fRunNb[i];
	114	fRunFirstPoint[i] = source.fRunFirstPoint[i];
	115	fRunLastPoint[i] = source.fRunLastPoint[i];
	116	}
f04b3a69	117
	118	}
	119
	120	//_________________________________________________________
	121
	122	AliTOFRunParams &
	123	AliTOFRunParams::operator=(const AliTOFRunParams &source)
	124	{
	125	/*
	126	* operator=
	127	*/
	128
	129	if (this == &source) return *this;
	130	TObject::operator=(source);
	131
	132	if (fNPoints != source.fNPoints) {
	133	if (fTimestamp) delete [] fTimestamp;
	134	if (fT0) delete [] fT0;
	135	if (fTOFResolution) delete [] fTOFResolution;
	136	if (fT0Spread) delete [] fT0Spread;
	137	fNPoints = source.fNPoints;
	138	fTimestamp = new UInt_t[source.fNPoints];
	139	fT0 = new Float_t[source.fNPoints];
	140	fTOFResolution = new Float_t[source.fNPoints];
	141	fT0Spread = new Float_t[source.fNPoints];
	142	}
	143
	144	for (Int_t i = 0; i < fNPoints; i++) {
	145	fTimestamp[i] = source.fTimestamp[i];
	146	fT0[i] = source.fT0[i];
	147	fTOFResolution[i] = source.fTOFResolution[i];
	148	fT0Spread[i] = source.fT0Spread[i];
	149	}
	150
53408dc1	151	if (fNRuns != source.fNRuns) {
	152	if (fRunNb) delete [] fRunNb;
	153	if (fRunFirstPoint) delete [] fRunFirstPoint;
	154	if (fRunLastPoint) delete [] fRunLastPoint;
	155	fNRuns = source.fNRuns;
	156	fRunNb = new UInt_t[source.fNRuns];
	157	fRunFirstPoint = new UInt_t[source.fNRuns];
	158	fRunLastPoint = new UInt_t[source.fNRuns];
	159	}
	160
	161	for (Int_t i = 0; i < fNRuns; i++) {
	162	fRunNb[i] = source.fRunNb[i];
	163	fRunFirstPoint[i] = source.fRunFirstPoint[i];
	164	fRunLastPoint[i] = source.fRunLastPoint[i];
	165	}
	166
f04b3a69	167	return *this;
	168	}
	169
	170	//_________________________________________________________
	171
	172	Float_t
	173	AliTOFRunParams::EvalT0(UInt_t timestamp)
	174	{
	175	/*
	176	* eval T0
	177	*/
	178
	179	/* critical cases:
	180	1. no measurement -> 0.
	181	2. single measurement -> single value
	182	3. timestamp before first measurement -> first value
	183	4. timestamp after last measurement -> last value
	184	*/
	185	if (fNPoints <= 0 \|\| !fT0 \|\| !fTimestamp) return 0.;
	186	if (fNPoints == 1) return fT0[0];
	187	if (timestamp <= fTimestamp[0]) return fT0[0];
	188	if (timestamp >= fTimestamp[fNPoints - 1]) return fT0[fNPoints - 1];
	189
	190	/* interpolate value */
	191	Int_t ipoint;
	192	for (ipoint = 0; ipoint < fNPoints - 1; ipoint++)
	193	if (timestamp >= fTimestamp[ipoint] && timestamp < fTimestamp[ipoint + 1])
	194	break;
	195	Float_t coeff = (fT0[ipoint + 1] - fT0[ipoint]) / (Float_t)(fTimestamp[ipoint + 1] - fTimestamp[ipoint]);
	196	Float_t t0 = fT0[ipoint] + coeff * (timestamp - fTimestamp[ipoint]);
	197
	198	return t0;
	199	}
	200
	201	//_________________________________________________________
	202
	203	Float_t
	204	AliTOFRunParams::EvalTOFResolution(UInt_t timestamp)
	205	{
	206	/*
	207	* eval TOF resolution
	208	*/
	209
	210	/* critical cases:
	211	1. no measurement -> 0.
	212	2. single measurement -> single value
	213	3. timestamp before first measurement -> first value
	214	4. timestamp after last measurement -> last value
	215	*/
	216	if (fNPoints <= 0 \|\| !fTOFResolution \|\| !fTimestamp) return 0.;
	217	if (fNPoints == 1) return fTOFResolution[0];
	218	if (timestamp <= fTimestamp[0]) return fTOFResolution[0];
	219	if (timestamp >= fTimestamp[fNPoints - 1]) return fTOFResolution[fNPoints - 1];
	220
	221	/* interpolate value */
	222	Int_t ipoint;
	223	for (ipoint = 0; ipoint < fNPoints - 1; ipoint++)
	224	if (timestamp >= fTimestamp[ipoint] && timestamp < fTimestamp[ipoint + 1])
	225	break;
	226	Float_t coeff = (fTOFResolution[ipoint + 1] - fTOFResolution[ipoint]) / (Float_t)(fTimestamp[ipoint + 1] - fTimestamp[ipoint]);
	227	Float_t reso = fTOFResolution[ipoint] + coeff * (timestamp - fTimestamp[ipoint]);
	228
	229	return reso;
	230	}
231
232	//_________________________________________________________
233
234	Float_t
235	AliTOFRunParams::EvalT0Spread(UInt_t timestamp)
236	{
237	/*
238	* eval T0 spread
239	*/
240
241	/* critical cases:
242	1. no measurement -> 0.
243	2. single measurement -> single value
244	3. timestamp before first measurement -> first value
245	4. timestamp after last measurement -> last value
246	*/
247	if (fNPoints <= 0 \|\| !fT0Spread \|\| !fTimestamp) return 0.;
248	if (fNPoints == 1) return fT0Spread[0];
249	if (timestamp <= fTimestamp[0]) return fT0Spread[0];
250	if (timestamp >= fTimestamp[fNPoints - 1]) return fT0Spread[fNPoints - 1];
251
252	/* interpolate value */
253	Int_t ipoint;
254	for (ipoint = 0; ipoint < fNPoints - 1; ipoint++)
255	if (timestamp >= fTimestamp[ipoint] && timestamp < fTimestamp[ipoint + 1])
256	break;
257	Float_t coeff = (fT0Spread[ipoint + 1] - fT0Spread[ipoint]) / (Float_t)(fTimestamp[ipoint + 1] - fTimestamp[ipoint]);
258	Float_t spread = fT0Spread[ipoint] + coeff * (timestamp - fTimestamp[ipoint]);
259
260	return spread;
261	}
262
53408dc1	263	//_________________________________________________________
	264
	265	Float_t
	266	AliTOFRunParams::Average(Float_t *data, Int_t first, Int_t last)
	267	{
	268	/*
	269	* average
	270	*/
	271
	272	if (first < 0) first = 0;
	273	if (last >= fNPoints) last = fNPoints - 1;
	274	Float_t value = 0.;
	275	Int_t npt = 0;
	276	for (Int_t i = first; i <= last; i++) {
	277	value += data[i];
	278	npt++;
	279	}
	280	value /= npt;
	281	return value;
	282
	283	}
	284
	285	//_________________________________________________________
	286
	287	Float_t
	288	AliTOFRunParams::Average(Float_t *data, UInt_t runNb)
	289	{
	290	/*
	291	* average
	292	*/
	293
	294	/* critical cases:
	295	1. no measurement -> 0.
	296	2. no runNb structure -> average over all points
	297	3. runNb not found -> average over all points
	298	*/
	299	if (fNPoints <= 0 \|\| !fT0 \|\| !fTimestamp) return 0.;
	300	if (fNRuns <= 0 \|\| !fRunNb \|\| !fRunFirstPoint \|\| !fRunLastPoint) return Average(data, 0, fNPoints - 1);
	301
	302
	303	/* search for runNb */
	304	UInt_t runPoint = 0;
	305	Bool_t gotRunNb = kFALSE;
	306	for (Int_t irun = 0; irun < fNRuns; irun++) {
	307	if (fRunNb[irun] == runNb) {
	308	runPoint = irun;
	309	gotRunNb = kTRUE;
	310	break;
	311	}
	312	}
	313	if (!gotRunNb) return Average(data, 0, fNPoints - 1);
	314
	315	/* average between first and last run points */
	316	UInt_t firstPoint = fRunFirstPoint[runPoint];
	317	UInt_t lastPoint = fRunLastPoint[runPoint];
	318	return Average(data, firstPoint, lastPoint);
	319
	320	}
	321
	322	//_________________________________________________________
	323
	324	TGraph *
	325	AliTOFRunParams::DrawGraph(Float_t data, Option_t option)
	326	{
327	/*
328	* draw
329	*/
330
331	if (fNPoints == 0 \|\| !data \|\| !fTimestamp) return NULL;
332
333	Float_t ts[1000000];
334	for (Int_t i = 0; i < fNPoints; i++)
335	ts[i] = fTimestamp[i];
336
337	TGraph *graph = new TGraph(fNPoints, ts, data);
338	graph->Draw(option);
339	return graph;
340	}