Added selection cuts for fitting drift speed vs. anode. Upgraded naming scheme for...
[u/mrichter/AliRoot.git] / ITS / AliITSOnlineSDDInjectors.cxx
1 /**************************************************************************
2  * Copyright(c) 2007-2009, ALICE Experiment at CERN, All rights reserved. *
3  *                                                                        *
4  * Author: The ALICE Off-line Project.                                    *
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6  *                                                                        *
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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 #include "AliITSOnlineSDDInjectors.h"
16 #include <TH2F.h>
17 #include <TGraphErrors.h>
18 #include <TMath.h>
19
20 /* $Id$ */
21
22 ///////////////////////////////////////////////////////////////////
23 //                                                               //
24 // Implementation of the class used for SDD injector analysis    //
25 // Origin: F.Prino, Torino, prino@to.infn.it                     //
26 //                                                               //
27 ///////////////////////////////////////////////////////////////////
28
29 ClassImp(AliITSOnlineSDDInjectors)
30
31 const Float_t AliITSOnlineSDDInjectors::fgkSaturation = 1008.;
32 const Float_t AliITSOnlineSDDInjectors::fgkDefaultLThreshold = 5.;
33 const Float_t AliITSOnlineSDDInjectors::fgkDefaultHThreshold = 25.;
34 const Float_t AliITSOnlineSDDInjectors::fgkDefaultMinSpeed = 5.5;
35 const Float_t AliITSOnlineSDDInjectors::fgkDefaultMaxSpeed = 9.0;
36 const Float_t AliITSOnlineSDDInjectors::fgkDefaultMaxErr = 1.5;
37 const Int_t   AliITSOnlineSDDInjectors::fgkDefaultPolOrder = 3;
38 const UShort_t AliITSOnlineSDDInjectors::fgkDefaultTbMin[kInjLines] = {20,90,170};
39 const UShort_t AliITSOnlineSDDInjectors::fgkDefaultTbMax[kInjLines] = {50,160,240};
40
41 //______________________________________________________________________
42 AliITSOnlineSDDInjectors::AliITSOnlineSDDInjectors():AliITSOnlineSDD(),fHisto(),fTbZero(0.),fParam(),fPolOrder(0),fMinDriftSpeed(0.),fMaxDriftSpeed(0.),fMaxDriftSpeedErr(0.),fLowThreshold(0.),fHighThreshold(0.),fFirstPadForFit(0),fLastPadForFit(0),fPadStatusCutForFit(0)
43 {
44   // default constructor
45   SetPositions();
46   SetDefaults();
47 }
48 //______________________________________________________________________
49 AliITSOnlineSDDInjectors::AliITSOnlineSDDInjectors(Int_t nddl, Int_t ncarlos, Int_t sid):AliITSOnlineSDD(nddl,ncarlos,sid),fHisto(),fTbZero(0.),fParam(),fPolOrder(0),fMinDriftSpeed(0.),fMaxDriftSpeed(0.),fMaxDriftSpeedErr(0.),fLowThreshold(0.),fHighThreshold(0.),fFirstPadForFit(0),fLastPadForFit(0),fPadStatusCutForFit(0)
50
51 // standard constructor
52   SetPositions();
53   SetDefaults();
54 }
55 //______________________________________________________________________
56 AliITSOnlineSDDInjectors::~AliITSOnlineSDDInjectors(){
57   // Destructor
58   // fHisto should not be deleted here because it points to an histo created 
59   // by the external code which calls the method AnalyzeEvent
60   // if(fHisto) delete fHisto;  
61   if(fParam) delete [] fParam;
62 }
63 //______________________________________________________________________
64 void AliITSOnlineSDDInjectors::SetDefaults(){
65   for(Int_t i=0;i<kInjLines;i++) 
66     SetInjLineRange(i,fgkDefaultTbMin[i],fgkDefaultTbMax[i]);
67   SetThresholds(fgkDefaultLThreshold,fgkDefaultHThreshold);
68   SetPolOrder(fgkDefaultPolOrder);
69   SetMinDriftSpeed(fgkDefaultMinSpeed);
70   SetMaxDriftSpeed(fgkDefaultMaxSpeed);
71   SetMaxDriftSpeedErr(fgkDefaultMaxErr);
72   SetFitLimits(1,kInjPads-2); // exclude first and last pad
73   SetPadStatusCutForFit();
74 }
75 //______________________________________________________________________
76 void AliITSOnlineSDDInjectors::SetPositions(){
77   // 
78   Float_t xLinFromCenterUm[kInjLines]={31860.,17460.,660.};
79   Float_t xAnodeFromCenterUm=35085;
80   for(Int_t i=0;i<kInjLines;i++){
81     fPosition[i]=xAnodeFromCenterUm-xLinFromCenterUm[i];
82     fPosition[i]/=10000.; // from microns to cm
83   }
84 }
85 //______________________________________________________________________
86 void AliITSOnlineSDDInjectors::Reset(){
87   //
88   for(Int_t i=0;i<kInjPads;i++){ 
89     fDriftSpeed[i]=0.;
90     fDriftSpeedErr[i]=0.;
91   }
92   for(Int_t i=0;i<kInjPads;i++){
93     for(Int_t j=0;j<kInjLines;j++){
94       fGoodInj[i][j]=0;
95       fCentroid[i][j]=0.;
96       fRMSCentroid[i][j]=0.;
97     }
98   }
99 }
100 //______________________________________________________________________
101 void AliITSOnlineSDDInjectors::AnalyzeEvent(TH2F* his){
102   //
103   Reset();
104   fHisto=his;
105   FindGoodInjectors();
106   FindCentroids();
107   CalcTimeBinZero();
108   for(Int_t j=0;j<kInjPads;j++) CalcDriftSpeed(j);
109   FitDriftSpeedVsAnode();
110 }
111 //______________________________________________________________________
112 TGraphErrors* AliITSOnlineSDDInjectors::GetTimeVsDistGraph(Int_t jpad) const{
113   // 
114   const Int_t kPts=kInjLines+1;
115   Float_t x[kPts],y[kPts],ex[kPts],ey[kPts];
116   x[0]=0.;
117   ex[0]=0.;
118   y[0]=fTbZero;
119   ey[0]=0.;
120   for(Int_t i=0;i<kInjLines;i++){
121     x[i+1]=fPosition[i];
122     ex[i+1]=0.;
123     y[i+1]=fCentroid[jpad][i];
124     ey[i+1]=fRMSCentroid[jpad][i];
125   }
126   TGraphErrors *g=new TGraphErrors(4,x,y,ex,ey);
127   return g;
128 }
129
130 //______________________________________________________________________
131 TGraphErrors* AliITSOnlineSDDInjectors::GetDriftSpeedGraph() const{
132   // 
133   Int_t ipt=0;
134   TGraphErrors *g=new TGraphErrors(0);
135   for(Int_t i=0;i<kInjPads;i++){
136     if(fDriftSpeed[i]>0){ 
137       g->SetPoint(ipt,GetAnodeNumber(i),fDriftSpeed[i]);
138       g->SetPointError(ipt,0,fDriftSpeedErr[i]);
139       ipt++;
140     }
141   }
142   return g;
143 }
144 //______________________________________________________________________
145 void AliITSOnlineSDDInjectors::CalcTimeBinZero(){
146   //
147   Float_t tzero=0.,intCont=0.;
148   for(Int_t ian=0;ian<fgkNAnodes;ian++){
149     for(Int_t itb=1;itb<fTbMin[0];itb++){
150       Float_t cont=fHisto->GetBinContent(itb,ian+1);
151       if(cont>fLowThreshold){
152         tzero+=cont*float(itb);
153         intCont+=cont;
154       }
155     }
156   }
157   if(intCont>0) fTbZero=tzero/intCont;
158 }
159 //______________________________________________________________________
160 void AliITSOnlineSDDInjectors::FitDriftSpeedVsAnode(){
161   // fits the anode dependence of drift speed with a polynomial function
162   const Int_t kNn=fPolOrder+1;
163   Float_t **mat = new Float_t*[kNn];
164   for(Int_t i=0; i < kNn; i++) mat[i] = new Float_t[kNn];
165   Float_t *vect = new Float_t[kNn];
166
167   for(Int_t k1=0;k1<kNn;k1++){
168     vect[k1]=0;
169     for(Int_t k2=0;k2<kNn;k2++){
170       mat[k1][k2]=0;
171     }
172   }
173   for(Int_t k1=0;k1<kNn;k1++){
174     for(Int_t jpad=fFirstPadForFit; jpad<=fLastPadForFit; jpad++){
175       Float_t x=(Float_t)GetAnodeNumber(jpad);
176       if(fDriftSpeed[jpad]>0 && GetInjPadStatus(jpad)>fPadStatusCutForFit){
177           vect[k1]+=fDriftSpeed[jpad]*TMath::Power(x,k1)/TMath::Power(fDriftSpeedErr[jpad],2);  
178           for(Int_t k2=0;k2<kNn;k2++){
179
180             mat[k1][k2]+=TMath::Power(x,k1+k2)/TMath::Power(fDriftSpeedErr[jpad],2);
181           }
182       }
183     }
184   }
185   Int_t *iPivot = new Int_t[kNn];
186   Int_t *indxR = new Int_t[kNn];
187   Int_t *indxC = new Int_t[kNn];
188   for(Int_t i=0;i<kNn;i++) iPivot[i]=0;
189   Int_t iCol=-1,iRow=-1;
190   for(Int_t i=0;i<kNn;i++){
191     Float_t big=0.;
192     for(Int_t j=0;j<kNn;j++){
193       if(iPivot[j]!=1){
194         for(Int_t k=0;k<kNn;k++){
195            if(iPivot[k]==0){
196              if(TMath::Abs(mat[j][k])>=big){
197                big=TMath::Abs(mat[j][k]);
198                iRow=j;
199                iCol=k;
200              }
201           }
202         }
203       }
204     }
205     iPivot[iCol]++;
206     Float_t aux;
207     if(iRow!=iCol){
208       for(Int_t l=0;l<kNn;l++){
209         aux=mat[iRow][l];
210         mat[iRow][l]=mat[iCol][l];
211         mat[iCol][l]=aux;
212       }
213       aux=vect[iRow];
214       vect[iRow]=vect[iCol];
215       vect[iCol]=aux;
216     }
217     indxR[i]=iRow;
218     indxC[i]=iCol;
219     if(mat[iCol][iCol]==0) break;
220     Float_t pivinv=1./mat[iCol][iCol];
221     mat[iCol][iCol]=1;
222     for(Int_t l=0;l<kNn;l++) mat[iCol][l]*=pivinv;
223     vect[iCol]*=pivinv;
224     for(Int_t m=0;m<kNn;m++){
225       if(m!=iCol){
226         aux=mat[m][iCol];
227         mat[m][iCol]=0;
228         for(Int_t n=0;n<kNn;n++) mat[m][n]-=mat[iCol][n]*aux;
229         vect[m]-=vect[iCol]*aux;
230       }
231     }    
232   }
233   delete [] iPivot;
234   delete [] indxR;
235   delete [] indxC;
236
237   if(fParam) delete [] fParam;
238   fParam=new Float_t[kNn];
239   for(Int_t i=0; i<kNn;i++)fParam[i]=vect[i];
240
241   for(Int_t i=0; i < kNn; i++) delete [] mat[i];
242   delete [] mat;
243   delete [] vect;
244 }
245 //______________________________________________________________________
246 void AliITSOnlineSDDInjectors::CalcDriftSpeed(Int_t jpad){
247   // 
248   Float_t sumY=0,sumX=0,sumXX=0,sumYY=0.,sumXY=0,sumWEI=0.;
249   Int_t npt=0;
250   Float_t y[kInjLines],ey[kInjLines];
251   Float_t tzero=0,erry=0;
252   for(Int_t i=0;i<kInjLines;i++){ 
253     y[i]=fCentroid[jpad][i];
254     ey[i]=fRMSCentroid[jpad][i];
255   }
256   for(Int_t i=0;i<kInjLines;i++){
257     if(fGoodInj[jpad][i] && ey[i]!=0){
258       sumY+=y[i]/ey[i]/ey[i];
259       sumX+=fPosition[i]/ey[i]/ey[i];
260       sumXX+=fPosition[i]*fPosition[i]/ey[i]/ey[i];
261       sumYY+=y[i]*y[i]/ey[i]/ey[i];
262       sumXY+=fPosition[i]*y[i]/ey[i]/ey[i];
263       sumWEI+=1./ey[i]/ey[i];
264       tzero=fTbZero/ey[i]/ey[i];
265       erry=ey[i];
266       npt++;
267     }
268   }
269   Float_t vel=0,evel=0;
270   if(npt>1){ 
271     Float_t slope=(sumWEI*sumXY-sumY*sumX)/(sumWEI*sumXX-sumX*sumX);
272     Float_t eslope=TMath::Sqrt(sumWEI/(sumWEI*sumXX-sumX*sumX));
273     if(slope!=0){
274       vel=1./slope*10000./25.;// micron/ns
275       evel=eslope/slope/slope*10000./25.;// micron/ns
276     }
277   }
278   if(npt==1){
279     Float_t slope=(sumY-tzero)/sumX;
280     Float_t eslope=erry/sumX;
281     if(slope!=0){
282       vel=1./slope*10000./25.;// micron/ns    
283       evel=eslope/slope/slope*10000./25.;// micron/ns
284     }
285   }
286   if(vel>fMaxDriftSpeed||vel<fMinDriftSpeed || evel>fMaxDriftSpeedErr){ 
287     vel=0.;
288     evel=0.;
289   }
290   fDriftSpeed[jpad]=vel;
291   fDriftSpeedErr[jpad]=evel;
292 }
293 //______________________________________________________________________
294 Int_t AliITSOnlineSDDInjectors::GetAnodeNumber(Int_t iInjPad) const{
295   //
296   Int_t ian=-1;
297   if(iInjPad>=kInjPads) return ian;
298   if(!fSide){
299     ian=iInjPad*8;
300     if(iInjPad==32) ian--;
301   }else{
302     ian=iInjPad*8-1;
303     if(iInjPad==0) ian=0;
304   }
305   return ian;
306 }
307 //______________________________________________________________________
308 Int_t AliITSOnlineSDDInjectors::GetInjPadNumberFromAnode(Int_t nAnode) const{
309   //
310   Int_t iInjPad=-1;
311   if(!fSide){
312     if(nAnode%8==0) iInjPad=nAnode/8;
313     if(nAnode==255) iInjPad=32;
314   }else{
315     if(nAnode%8==7) iInjPad=1+nAnode/8;
316     if(nAnode==0) iInjPad=0;
317   }
318   if(nAnode>=256) iInjPad=-1;
319   return iInjPad;
320 }
321 //______________________________________________________________________
322 Int_t AliITSOnlineSDDInjectors::GetInjPadStatus(Int_t jpad) const{
323   // returns an integer value with status of injector lines for given pad/anode
324   // status=7  -->  111  all injector are good
325   // status=6  -->  110  1st line (close to anodes) is bad, other two are good
326   // ....
327   // status=1  -->  001  only 1st line (close to anodes) good
328   // status=0  -->  000  all lines are bad
329   Int_t istatus=0;
330   if(jpad>=0 && jpad<kInjPads){
331     for(Int_t jlin=0;jlin<kInjLines;jlin++) istatus+=fGoodInj[jpad][jlin]<<jlin;
332   }
333   return istatus;
334 }
335 //______________________________________________________________________
336 void AliITSOnlineSDDInjectors::FindGoodInjectors(){
337   // 
338   for(Int_t jpad=0;jpad<kInjPads;jpad++){
339     Int_t ian=GetAnodeNumber(jpad);
340     for(Int_t jlin=0;jlin<kInjLines;jlin++){
341       for(Int_t jjj=fTbMin[jlin];jjj<fTbMax[jlin];jjj++){
342         Float_t c1=fHisto->GetBinContent(jjj,ian+1);
343         Float_t c2=fHisto->GetBinContent(jjj+1,ian+1);
344         Float_t c3=fHisto->GetBinContent(jjj+2,ian+1);
345         if(c1>fLowThreshold && c2>fHighThreshold && c3>fLowThreshold){ 
346           fGoodInj[jpad][jlin]=1;
347           break;
348         }
349       }
350     }
351   }
352 }
353 //______________________________________________________________________
354 void AliITSOnlineSDDInjectors::FindCentroids(){
355   // 
356   for(Int_t jpad=0;jpad<kInjPads;jpad++){
357     Int_t ian=GetAnodeNumber(jpad);
358     for(Int_t jlin=0;jlin<kInjLines;jlin++){
359       if(!fGoodInj[jpad][jlin]) continue;
360       Float_t maxcont=0;
361       Int_t ilmax=-1;
362       for(Int_t jjj=fTbMin[jlin];jjj<fTbMax[jlin];jjj++){
363         Float_t cont=fHisto->GetBinContent(jjj,ian+1);
364         if(cont>maxcont){
365           maxcont=cont;
366           ilmax=jjj;
367         }
368       }
369       Float_t intCont=0;
370       Int_t jjj=ilmax;
371       while(1){
372         Float_t cont=fHisto->GetBinContent(jjj,ian+1);
373         if(cont<fLowThreshold) break;
374         if(cont<fgkSaturation){
375           fCentroid[jpad][jlin]+=cont*(Float_t)jjj;
376           fRMSCentroid[jpad][jlin]+=cont*TMath::Power((Float_t)jjj,2);
377           intCont+=cont;
378         }
379         jjj--;
380       }
381       jjj=ilmax+1;
382       while(1){
383         Float_t cont=fHisto->GetBinContent(jjj,ian+1);
384         if(cont<fLowThreshold) break;
385         if(cont<fgkSaturation){
386           fCentroid[jpad][jlin]+=cont*float(jjj);
387           fRMSCentroid[jpad][jlin]+=cont*TMath::Power((Float_t)jjj,2);
388           intCont+=cont;
389         }
390         jjj++;
391       }
392       if(intCont>0){ 
393         fCentroid[jpad][jlin]/=intCont;
394         fRMSCentroid[jpad][jlin]=TMath::Sqrt(fRMSCentroid[jpad][jlin]/intCont-fCentroid[jpad][jlin]*fCentroid[jpad][jlin]);
395       }
396       else{ 
397         fCentroid[jpad][jlin]=0.;
398         fRMSCentroid[jpad][jlin]=0.;
399         fGoodInj[jpad][jlin]=0;
400       }
401       if(fRMSCentroid[jpad][jlin]==0) fGoodInj[jpad][jlin]=0;
402     }
403   }
404 }
405 //______________________________________________________________________
406 void AliITSOnlineSDDInjectors::PrintInjectorStatus(){
407   //
408   for(Int_t jpad=0;jpad<kInjPads;jpad++){
409     printf("Line%d-Anode%d: %d %d %d\n",jpad,GetAnodeNumber(jpad),fGoodInj[jpad][0],fGoodInj[jpad][1],fGoodInj[jpad][2]);
410   }
411 }
412 //______________________________________________________________________
413 void AliITSOnlineSDDInjectors::PrintCentroids(){
414   //
415   for(Int_t jpad=0;jpad<kInjPads;jpad++){
416     printf("Line%d-Anode%d: %f+-%f %f+-%f %f+-%f\n",jpad,GetAnodeNumber(jpad),fCentroid[jpad][0],fRMSCentroid[jpad][0],fCentroid[jpad][1],fRMSCentroid[jpad][1],fCentroid[jpad][2],fRMSCentroid[jpad][2]);
417   }
418 }
419 //______________________________________________________________________
420 void AliITSOnlineSDDInjectors::WriteToASCII(Int_t evNumb, UInt_t timeStamp, Int_t optAppend){
421   //
422   Char_t outfilnam[100];
423   sprintf(outfilnam,"SDDinj_ddl%02dc%02d_sid%d.data",fDDL,fCarlos,fSide);  
424   FILE* outf;
425   if(optAppend==0){ 
426     outf=fopen(outfilnam,"w");
427     fprintf(outf,"%d\n",fPolOrder);
428   }
429   else outf=fopen(outfilnam,"a");
430   fprintf(outf,"%d   %d   ",evNumb,timeStamp);
431   for(Int_t ic=0;ic<fPolOrder+1;ic++){
432     fprintf(outf,"%G ",fParam[ic]);
433   }
434   fprintf(outf,"\n");
435   fclose(outf);  
436 }