Introducing Riostream.h
[u/mrichter/AliRoot.git] / TPC / AliTPCParamCR.cxx
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cc80f89e 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$Log$
f03e3423 18Revision 1.5 2001/01/26 19:57:22 hristov
19Major upgrade of AliRoot code
20
2ab0c725 21Revision 1.4 2000/11/02 07:33:15 kowal2
22Improvements of the code.
23
c11cb93f 24Revision 1.3 2000/06/30 12:07:50 kowal2
25Updated from the TPC-PreRelease branch
26
73042f01 27Revision 1.2.4.1 2000/06/14 16:48:24 kowal2
28Parameter setting improved. Removed compiler warnings
29
30Revision 1.2 2000/04/17 09:37:33 kowal2
31removed obsolete AliTPCDigitsDisplay.C
32
cc80f89e 33Revision 1.1.4.2 2000/04/10 11:36:13 kowal2
34
35New Detector parameters handling class
36
37*/
38
39///////////////////////////////////////////////////////////////////////
40// Manager and of geomety classes for set: TPC //
41// //
42// !sectors are numbered from 0 //
43// !pad rows are numbered from 0 //
44//
45// 27.7. - AliTPCPaaramSr object for TPC
46// TPC with straight pad rows
47// Origin: Marian Ivanov, Uni. of Bratislava, ivanov@fmph.uniba.sk //
48// //
49///////////////////////////////////////////////////////////////////////
50
51
52#include <iostream.h>
53#include <TMath.h>
2ab0c725 54#include <TClass.h>
cc80f89e 55#include <AliTPCParamCR.h>
73042f01 56#include "AliTPCPRF2D.h"
57#include "AliTPCRF1D.h"
cc80f89e 58
59
60
61ClassImp(AliTPCParamCR)
62const static Int_t kMaxRows=600;
63const static Float_t kEdgeSectorSpace = 2.5;
64
65AliTPCParamCR::AliTPCParamCR()
66{
67 //
68 //constructor set the default parameters
69 fInnerPRF=0;
f03e3423 70 fOuter1PRF=0;
71 fOuter2PRF=0;
cc80f89e 72 fTimeRF = 0;
73 fFacSigma = Float_t(2.);
74 SetDefault();
75 Update();
76}
77
78AliTPCParamCR::~AliTPCParamCR()
79{
80 //
81 //destructor destroy some dynmicaly alocated variables
82 if (fInnerPRF != 0) delete fInnerPRF;
f03e3423 83 if (fOuter1PRF != 0) delete fOuter1PRF;
84 if (fOuter2PRF != 0) delete fOuter2PRF;
cc80f89e 85 if (fTimeRF != 0) delete fTimeRF;
86}
87
88void AliTPCParamCR::SetDefault()
89{
90 //set default TPC param
91 fbStatus = kFALSE;
92 AliTPCParam::SetDefault();
93}
94
73042f01 95Int_t AliTPCParamCR::CalcResponse(Float_t* xyz, Int_t * index, Int_t dummy)
cc80f89e 96{
97 //
98 //calculate bin response as function of the input position -x
99 //return number of valid response bin
100 //
101 //we suppose that coordinata is expressed in float digits
102 // it's mean coordinate system 8
103 //xyz[0] - float padrow xyz[1] is float pad (center pad is number 0) and xyz[2] is float time bin
f03e3423 104 if ( (fInnerPRF==0)||(fOuter1PRF==0) ||(fOuter2PRF==0)||(fTimeRF==0) ){
cc80f89e 105 Error("AliTPCParamCR", "response function were not adjusted");
106 return -1;
107 }
108
109 Float_t sfpadrow; // sigma of response function
110 Float_t sfpad; // sigma of
111 Float_t sftime= fFacSigma*fTimeRF->GetSigma()/fZWidth; //3 sigma of time response
112 if (index[1]<fNInnerSector){
113 sfpadrow =fFacSigma*fInnerPRF->GetSigmaY()/fInnerPadPitchLength;
114 sfpad =fFacSigma*fInnerPRF->GetSigmaX()/fInnerPadPitchWidth;
115 }else{
f03e3423 116 if(index[2]<fNRowUp1){
117 sfpadrow =fFacSigma*fOuter1PRF->GetSigmaY()/fOuter1PadPitchLength;
118 sfpad =fFacSigma*fOuter1PRF->GetSigmaX()/fOuterPadPitchWidth;}
119 else{ sfpadrow =fFacSigma*fOuter2PRF->GetSigmaY()/fOuter2PadPitchLength;
120 sfpad =fFacSigma*fOuter2PRF->GetSigmaX()/fOuterPadPitchWidth;}
cc80f89e 121 }
122
123 Int_t fpadrow = TMath::Nint(xyz[0]-sfpadrow); //"first" padrow
124 Int_t fpad = TMath::Nint(xyz[1]-sfpad); //first pad
125 Int_t ftime = TMath::Nint(xyz[2]+fTimeRF->GetOffset()-sftime); // first time
126 Int_t lpadrow = TMath::Min(TMath::Nint(xyz[0]+sfpadrow),fpadrow+19); //"last" padrow
127 Int_t lpad = TMath::Min(TMath::Nint(xyz[1]+sfpad),fpad+19); //last pad
128 Int_t ltime = TMath::Min(TMath::Nint(xyz[2]+fTimeRF->GetOffset()+sftime),ftime+19); // last time
129
130 Float_t padres[20][20]; //I don't expect bigger number of bins
131 Float_t timeres[20];
132 //calculate padresponse function
133 Int_t padrow;
134 for (padrow = fpadrow;padrow<=lpadrow;padrow++)
135 for (Int_t pad = fpad;pad<=lpad;pad++){
136 Float_t dy = (xyz[0]-Float_t(padrow));
137 Float_t dx = (xyz[1]-Float_t(pad));
138 if (index[1]<fNInnerSector)
139 padres[padrow-fpadrow][pad-fpad]=fInnerPRF->GetPRF(dx*fInnerPadPitchWidth,dy*fInnerPadPitchLength);
f03e3423 140 else{
141 if(index[2]<fNRowUp1){
142 padres[padrow-fpadrow][pad-fpad]=fOuter1PRF->GetPRF(dx*fOuterPadPitchWidth,dy*fOuter1PadPitchLength);}
143 else{ padres[padrow-fpadrow][pad-fpad]=fOuter2PRF->GetPRF(dx*fOuterPadPitchWidth,dy*fOuter2PadPitchLength);}}}
144
cc80f89e 145 //calculate time response function
146
147 Int_t time;
148 for (time = ftime;time<=ltime;time++) timeres[time-ftime]= fTimeRF->GetRF((xyz[2]-Float_t(time))*fZWidth);
149
150 //write over threshold values to stack
151 Int_t cindex3=-1;
152 Int_t cindex=0;
153 Float_t cweight = 0;
154 for (padrow = fpadrow;padrow<=lpadrow;padrow++)
155 for (Int_t pad = fpad;pad<=lpad;pad++)
156 for (time = ftime;time<=ltime;time++){
157 cweight = timeres[time-ftime]*padres[padrow-fpadrow][pad-fpad];
158 if (cweight>fResponseThreshold) {
159 fResponseBin[++cindex3]=padrow;
160 fResponseBin[++cindex3]=pad;
161 fResponseBin[++cindex3]=time;
162 fResponseWeight[++cindex]=cweight;
163 }
164 }
165 fCurrentMax=cindex;
166 return fCurrentMax;
167}
168
169void AliTPCParamCR::CRXYZtoXYZ(Float_t *xyz,
170 const Int_t &sector, const Int_t & padrow, Int_t option) const
171{
172 //transform relative coordinates to absolute
173 Bool_t rel = ( (option&2)!=0);
174 Int_t index[2]={sector,padrow};
175 if (rel==kTRUE) Transform4to3(xyz,index);//if the position is relative to pad row
176 Transform2to1(xyz,index);
177}
178
179void AliTPCParamCR::XYZtoCRXYZ(Float_t *xyz,
180 Int_t &sector, Int_t & padrow, Int_t option) const
181{
182 //transform global position to the position relative to the sector padrow
183 //if option=0 X calculate absolute calculate sector
184 //if option=1 X absolute use input sector
185 //if option=2 X relative to pad row calculate sector
186 //if option=3 X relative use input sector
187 //!!!!!!!!! WE start to calculate rows from row = 0
188 Int_t index[2];
189 Bool_t rel = ( (option&2)!=0);
190
191 //option 0 and 2 means that we don't have information about sector
192 if ((option&1)==0) Transform0to1(xyz,index); //we calculate sector number
193 else
194 index[0]=sector;
195 Transform1to2(xyz,index);
196 Transform2to3(xyz,index);
197 //if we store relative position calculate position relative to pad row
198 if (rel==kTRUE) Transform3to4(xyz,index);
199 sector = index[0];
200 padrow = index[1];
201}
202
203
204
205Bool_t AliTPCParamCR::Update()
206{
cc80f89e 207 Int_t i;
208 if (AliTPCParam::Update()==kFALSE) return kFALSE;
209 fbStatus = kFALSE;
210
f03e3423 211 Float_t firstrow = fInnerRadiusLow + 2.225 ;
212 for( i= 0;i<fNRowLow;i++)
213 {
214 Float_t x = firstrow + fInnerPadPitchLength*(Float_t)i;
215 fPadRowLow[i]=x;
216 // number of pads per row
217/*Float_t y = (x-0.5*fInnerPadPitchLength)*tan(fInnerAngle/2.)-fInnerWireMount-
218 fInnerPadPitchWidth/2.;*/
219 Float_t y = x*tan(fInnerAngle/2.)-fInnerWireMount;
220 fYInner[i]=y;
221 fNPadsLow[i] = 1+2*(Int_t)(y/fInnerPadPitchWidth) ;
cc80f89e 222
f03e3423 223 }
224 firstrow = fOuterRadiusLow + 1.6;
225 for(i=0;i<fNRowUp;i++)
226 {
227 if(i<fNRowUp1){
228 Float_t x = firstrow + fOuter1PadPitchLength*(Float_t)i;
229 fPadRowUp[i]=x;
230/*Float_t y =(x-0.5*fOuter1PadPitchLength)*tan(fOuterAngle/2.)-fOuterWireMount-
231 fOuterPadPitchWidth/2.;*/
232 Float_t y = x*tan(fInnerAngle/2.)-fInnerWireMount;
cc80f89e 233 fNPadsUp[i] = 1+2*(Int_t)(y/fOuterPadPitchWidth) ;
f03e3423 234 fYOuter[i] = y;
235 if(i==fNRowUp1-1) {
236 fLastWireUp1=fPadRowUp[i] +0.375;
237 firstrow = fPadRowUp[i] + 0.5*(fOuter1PadPitchLength+fOuter2PadPitchLength);
238 }
239 }
240 else
241 {
242 Float_t x = firstrow + fOuter2PadPitchLength*(Float_t)(i-64);
243/*Float_t y =(x-0.5*fOuter2PadPitchLength)*tan(fOuterAngle/2.)-fOuterWireMount-
244 fOuterPadPitchWidth/2.;*/
245 Float_t y = x*tan(fInnerAngle/2.)-fInnerWireMount;
246 fNPadsUp[i] = 1+2*(Int_t)(y/fOuterPadPitchWidth) ;
247 fYOuter[i] = y;
248 }
249 }
250
cc80f89e 251 fNtRows = fNInnerSector*fNRowLow+fNOuterSector*fNRowUp;
c11cb93f 252 fbStatus = kTRUE;
cc80f89e 253 return kTRUE;
254}
255
256
257
258void AliTPCParamCR::Streamer(TBuffer &R__b)
259{
260 // Stream an object of class AliTPC.
261
262 if (R__b.IsReading()) {
2ab0c725 263 AliTPCParamCR::Class()->ReadBuffer(R__b, this);
264 Update();
cc80f89e 265 } else {
2ab0c725 266 AliTPCParamCR::Class()->WriteBuffer(R__b, this);
cc80f89e 267 }
268}
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