Last commit, completing addition of AliHLTCaloClusterizer, AliHLTCaloDigitMaker,...
[u/mrichter/AliRoot.git] / HLT / CALO / AliHLTCaloClusterAnalyser.cxx
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ea367f6a 1// $Id: AliHLTCaloClusterAnalyser.cxx 35107 2009-09-30 01:45:06Z phille $
2
3/**************************************************************************
4 * This file is property of and copyright by the ALICE HLT Project *
5 * All rights reserved. *
6 * *
7 * Primary Authors: Oystein Djuvsland *
8 * *
9 * Permission to use, copy, modify and distribute this software and its *
10 * documentation strictly for non-commercial purposes is hereby granted *
11 * without fee, provided that the above copyright notice appears in all *
12 * copies and that both the copyright notice and this permission notice *
13 * appear in the supporting documentation. The authors make no claims *
14 * about the suitability of this software for any purpose. It is *
15 * provided "as is" without express or implied warranty. *
16 **************************************************************************/
17
18/**
19 * @file AliHLTCaloClusterAnalyser.cxx
20 * @author Oystein Djuvsland
21 * @date
22 * @brief Cluster analyser for Calo HLT
23 */
24
25// see header file for class documentation
26// or
27// refer to README to build package
28// or
29// visit http://web.ift.uib.no/~kjeks/doc/alice-hlt
30
31#include "AliHLTCaloClusterAnalyser.h"
32#include "AliHLTCaloRecPointHeaderStruct.h"
33#include "AliHLTCaloRecPointDataStruct.h"
34#include "AliHLTCaloClusterDataStruct.h"
35//#include "AliHLTCaloPhysicsAnalyzer.h"
36#include "AliPHOSGeoUtils.h"
37#include "AliESDCaloCluster.h"
38#include "TMath.h"
39#include "TVector3.h"
40
41ClassImp(AliHLTCaloClusterAnalyser);
42
43AliHLTCaloClusterAnalyser::AliHLTCaloClusterAnalyser() :
44 // AliHLTCaloBase(),
45 fLogWeight(0),
46 fRecPointDataPtr(0),
47 fNRecPoints(0),
48 fCaloClusterDataPtr(0),
49 fCaloClusterHeaderPtr(0),
50 fPHOSGeometry(0),
51 //fAnalyzerPtr(0),
52 fDoClusterFit(false),
53 fHaveCPVInfo(false),
54 fDoPID(false),
55 fHaveDistanceToBadChannel(false)
56{
57 //See header file for documentation
58 fLogWeight = 4.5;
59
60 // fAnalyzerPtr = new AliHLTCaloPhysicsAnalyzer();
61 // fPHOSGeometry = AliPHOSGeometry::GetInstance("noCPV");
62 fPHOSGeometry = new AliPHOSGeoUtils("PHOS", "noCPV");
63}
64
65AliHLTCaloClusterAnalyser::~AliHLTCaloClusterAnalyser()
66{
67}
68
69void
70AliHLTCaloClusterAnalyser::SetCaloClusterDataPtr(AliHLTCaloClusterDataStruct *caloClusterDataPtr)
71{
72 //see header file for documentation
73 fCaloClusterDataPtr = caloClusterDataPtr;
74}
75void
76AliHLTCaloClusterAnalyser::SetRecPointDataPtr(AliHLTCaloRecPointHeaderStruct *recPointDataPtr)
77{
78 fNRecPoints = recPointDataPtr->fNRecPoints;
79 fRecPointDataPtr = reinterpret_cast<AliHLTCaloRecPointDataStruct*>(reinterpret_cast<Char_t*>(recPointDataPtr)+sizeof(AliHLTCaloRecPointHeaderStruct));
80}
81
82Int_t
83AliHLTCaloClusterAnalyser::CalculateCenterOfGravity()
84{
85 //see header file for documentation
86 Float_t wtot = 0.;
87 Float_t x = 0.;
88 Float_t z = 0.;
89 Float_t xi = 0.;
90 Float_t zi = 0.;
91
92 AliHLTCaloDigitDataStruct *digit = 0;
93 //AliPHOSGeometry * phosgeom = AliPHOSGeometry::GetInstance() ;
94
95 AliHLTCaloRecPointDataStruct *recPoint = fRecPointDataPtr;
96
97 UInt_t iDigit = 0;
98
99 for(Int_t iRecPoint=0; iRecPoint < fNRecPoints; iRecPoint++)
100 {
101 digit = &(recPoint->fDigits);
102 for(iDigit = 0; iDigit < recPoint->fMultiplicity; iDigit++)
103 {
104
105 xi = digit->fX;
106 zi = digit->fZ;
107 // cout << "COG digits (x:z:E:time): " << xi << " : " << zi << " : " << digit->fEnergy << " : " << digit->fTime << endl;
108 if (recPoint->fAmp > 0 && digit->fEnergy > 0)
109 {
110 Float_t w = TMath::Max( 0., fLogWeight + TMath::Log( digit->fEnergy / recPoint->fAmp ) ) ;
111 x += xi * w ;
112 z += zi * w ;
113 wtot += w ;
114 }
115 digit++;
116 }
117 //cout << endl;
118 if (wtot>0)
119 {
120 recPoint->fX = x/wtot ;
121 recPoint->fZ = z/wtot ;
122 }
123 else
124 {
125 recPoint->fAmp = 0;
126 }
127 recPoint = reinterpret_cast<AliHLTCaloRecPointDataStruct*>(digit);
128 }
129 return 0;
130}
131
132
133Int_t
134AliHLTCaloClusterAnalyser::CalculateRecPointMoments()
135{
136 //See header file for documentation
137 return 0;
138}
139
140Int_t
141AliHLTCaloClusterAnalyser::CalculateClusterMoments(AliHLTCaloRecPointDataStruct */*recPointPtr*/, AliHLTCaloClusterDataStruct* /*clusterPtr*/)
142{
143 //See header file for documentation
144 return 0;
145}
146
147
148Int_t
149AliHLTCaloClusterAnalyser::DeconvoluteClusters()
150{
151 //See header file for documentation
152 return 0;
153}
154
155Int_t
156AliHLTCaloClusterAnalyser::CreateClusters(UInt_t availableSize, UInt_t& totSize)
157{
158 //See header file for documentation
159
160 UInt_t maxClusterSize = sizeof(AliHLTCaloClusterDataStruct) + (6 << 7); //Reasonable estimate... (6 = sizeof(Short_t) + sizeof(Float_t)
161
162 AliHLTCaloRecPointDataStruct* recPointPtr = fRecPointDataPtr;
163 AliHLTCaloDigitDataStruct* digitPtr = &(recPointPtr->fDigits);
164
165 AliHLTCaloClusterDataStruct* caloClusterPtr = fCaloClusterDataPtr;
166 UShort_t* cellIDPtr = &(caloClusterPtr->fCellsAbsId);
167 Float_t* cellAmpFracPtr = &(caloClusterPtr->fCellsAmpFraction);
168
169 Int_t id = -1;
170 TVector3 globalPos;
171
172 for(Int_t i = 0; i < fNRecPoints; i++) //TODO needs fix when we start unfolding (number of clusters not necessarily same as number of recpoints gotten from the clusterizer
173 {
174
175 if(availableSize < (totSize + maxClusterSize))
176 {
177 return -1; //Might get out of buffer, exiting
178 }
179 // cout << "Local Position (x:z:module): " << recPointPtr->fX << " : "<< recPointPtr->fZ << " : " << recPointPtr->fModule << endl;
180 fPHOSGeometry->Local2Global(recPointPtr->fModule, recPointPtr->fX, recPointPtr->fZ, globalPos);
181 // cout << "Global Position (x:y:z): " << globalPos[0] << " : "<< globalPos[1] << " : " << globalPos[2] << endl << endl;
182
183 caloClusterPtr->fGlobalPos[0] = globalPos[0];
184 caloClusterPtr->fGlobalPos[1] = globalPos[1];
185 caloClusterPtr->fGlobalPos[2] = globalPos[2];
186
187 caloClusterPtr->fNCells = recPointPtr->fMultiplicity;
188
189 cellIDPtr = &(caloClusterPtr->fCellsAbsId);
190 cellAmpFracPtr = &(caloClusterPtr->fCellsAmpFraction);
191
192 for(UInt_t j = 0; j < caloClusterPtr->fNCells; j++)
193 {
194 fPHOSGeometry->RelPosToAbsId((Int_t)(recPointPtr->fModule), (double)(digitPtr->fX), (double)(digitPtr->fZ), id);
195 *cellIDPtr = id;
196 *cellAmpFracPtr = digitPtr->fEnergy/recPointPtr->fAmp;
197 digitPtr++;
198 cellIDPtr = reinterpret_cast<UShort_t*>(reinterpret_cast<char*>(cellAmpFracPtr) + sizeof(Float_t));
199 cellAmpFracPtr = reinterpret_cast<Float_t*>(reinterpret_cast<char*>(cellIDPtr) + sizeof(Short_t));
200 }
201
202 caloClusterPtr->fEnergy = recPointPtr->fAmp;
203
204 if(fDoClusterFit)
205 {
206 FitCluster(recPointPtr);
207 }
208 else
209 {
210 caloClusterPtr->fDispersion = 0;
211 caloClusterPtr->fFitQuality = 0;
212 caloClusterPtr->fM20 = 0;
213 caloClusterPtr->fM02 = 0;
214
215 }
216 if(fHaveCPVInfo)
217 {
218 caloClusterPtr->fEmcCpvDistance = GetCPVDistance(recPointPtr);
219 }
220 else
221 {
222 caloClusterPtr->fEmcCpvDistance = -1;
223 }
224 if(fDoPID)
225 {
226 DoParticleIdentification(caloClusterPtr);
227 }
228 else
229 {
230 for(Int_t k = 0; k < AliPID::kSPECIESN; k++)
231 {
232 caloClusterPtr->fPID[k] = 0;
233 }
234 }
235 if(fHaveDistanceToBadChannel)
236 {
237 caloClusterPtr->fDistanceToBadChannel = GetDistanceToBadChannel(caloClusterPtr);
238 }
239 else
240 {
241 caloClusterPtr->fDistanceToBadChannel = -1;
242 }
243
244 caloClusterPtr->fClusterType = (AliESDCaloCluster::kPHOSCluster);
245 // totSize += sizeof(AliHLTCaloClusterDataStruct) + (caloClusterPtr->fNCells)*(sizeof(Short_t) +sizeof(Float_t)-1);
246 totSize += sizeof(AliHLTCaloClusterDataStruct) + (caloClusterPtr->fNCells-1)*(sizeof(Short_t) + sizeof(Float_t));
247
248 // caloClusterPtr = reinterpret_cast<AliHLTCaloClusterDataStruct*>(cellAmpFracPtr);
249 caloClusterPtr = reinterpret_cast<AliHLTCaloClusterDataStruct*>(cellIDPtr);
250 recPointPtr = reinterpret_cast<AliHLTCaloRecPointDataStruct*>(digitPtr);
251 digitPtr = &(recPointPtr->fDigits);
252 }
253 // cout << "CA: Energy End: " << fCaloClusterDataPtr->fEnergy << endl;
254 //cout << "CA totSize: " << totSize << endl;
255 return fNRecPoints;
256
257}
258