1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
18 Revision 1.3 2000/06/30 12:07:49 kowal2
19 Updated from the TPC-PreRelease branch
21 Revision 1.2.4.3 2000/06/26 07:39:42 kowal2
22 Changes to obey the coding rules
24 Revision 1.2.4.2 2000/06/25 08:38:41 kowal2
25 Splitted from AliTPCtracking
27 Revision 1.2.4.1 2000/06/14 16:45:13 kowal2
28 Improved algorithms. Compiler warnings removed.
30 Revision 1.2 2000/04/17 09:37:33 kowal2
31 removed obsolete AliTPCDigitsDisplay.C
33 Revision 1.1.4.2 2000/04/10 11:37:42 kowal2
35 Digits handling in a new data structure
41 ///////////////////////////////////////////////////////////////////////////////
43 // Alice segment manager object //
45 // AliSimDigits object (derived from AliDigits) //
46 // provide additional track information to digit //
48 // Origin: Marian Ivanov GSI Darmstadt //
52 ///////////////////////////////////////////////////////////////////////////////
57 #include "AliSegmentID.h"
59 #include "AliArrayI.h"
60 #include "AliArrayS.h"
61 #include "AliDigits.h"
62 #include "AliSimDigits.h"
64 #include <TClonesArray.h>
68 //_____________________________________________________________________________
69 //_____________________________________________________________________________
70 //_____________________________________________________________________________
71 ClassImp(AliSimDigits)
73 AliSimDigits::AliSimDigits()
75 // AliDigits::Invalite();
80 AliSimDigits::~AliSimDigits()
92 void AliSimDigits::InvalidateTrack()
95 //set default (invalid parameters)
96 if ( fTracks != 0) delete fTracks;
97 fTracks = new AliArrayI;
98 if ( fTrIndex != 0) delete fTrIndex;
99 fTrIndex = new AliArrayI;
101 for (Int_t i = 0; i<3; i++){
107 void AliSimDigits::AllocateTrack(Int_t length)
110 //construct empty buffer fElements and fTracks with size fNrows x fNcols x
114 fTracks->Set(fNcols*fNrows*fNlevel);
119 Int_t AliSimDigits::GetTrackID(Int_t row, Int_t column, Int_t level)
123 if (fTrBufType == 0) return GetTrackIDFast(row, column,level);
124 if (fTrBufType == 1) return GetTrackID1(row, column,level);
125 if (fTrBufType == 2) return GetTrackID2(row, column,level);
129 void AliSimDigits::ExpandTrackBuffer()
132 //expand buffer to two dimensional array
134 Error("ExpandBuffer", "buffer doesn't exist");
137 if (fTrBufType==0) return; //buffer expanded
138 if (fTrBufType==1) {ExpandTrackBuffer1(); return;}
139 if (fTrBufType==2) ExpandTrackBuffer2();
143 void AliSimDigits::CompresTrackBuffer(Int_t bufType)
146 //compres buffer according buffertype algorithm
149 Error("CompressBuffer", "buffer doesn't exist");
152 if (fTrBufType == bufType) return;
154 if (fTrBufType>0) ExpandTrackBuffer();
155 if (fTrBufType !=0) {
156 Error("CompressBuffer", "buffer doesn't exist");
159 //compress buffer of type 1
161 if (bufType==1) {CompresTrackBuffer1();return;}
162 if (bufType==2) CompresTrackBuffer2();
166 Int_t AliSimDigits::GetTrackID1(Int_t row, Int_t column, Int_t level)
168 //return track ID of digits - for buffer compresion 2
170 i = level*fNcols+column;
171 if ( (i+1)>=fTrIndex->fN) n2 = fTracks->fN;
173 n2 = fTrIndex->At(i+1);
174 n1 = fTrIndex->At(i);
178 for (i = n1;(i<n2);i++){
180 Int_t num = fTracks->At(i);
186 num = fTracks->At(i);
199 if ( (row>=rowold) && (row<=rownew) ) return id;
200 if (row < rownew ) return -2; //empty track
205 void AliSimDigits::ExpandTrackBuffer1()
208 //expand track compressed according algorithm 1 (track id comression independent to the digit compression)
209 // !!in expanded tracks we don't use fTrIndex array
213 Int_t all = fNrows*fNcols; //total number of digits
214 Int_t elems = all*fNlevel; //length of the buffer
216 AliArrayI * buf = new AliArrayI;
226 //oposite signa means how many unwrited (under threshold) values
227 Int_t num = fTracks->At(i);
228 if (num<0) row-=num; //negative number mean number of zeroes (no tracks of gibven level no need to write to array)
231 Int_t id = fTracks->At(i);
232 for (j = 0; j<num; j++,row++) (*buf)[level*all+col*fNrows+row]=id;
242 }//end of loop over digits
247 void AliSimDigits::CompresTrackBuffer1()
250 //comress track according algorithm 1 (track id comression independent to the digit compression)
254 AliArrayI * buf = new AliArrayI; //create new buffer
255 buf->Set(fNrows*fNcols*fNlevel); //lets have the nearly the "worst case"
256 AliArrayI * index = new AliArrayI;
257 index->Set(fNcols*fNlevel);
259 Int_t icurrent=-1; //current index
260 Int_t izero; //number of zero
261 Int_t inum; //number of digits with the same current track id
262 Int_t lastID =0; //last track id
263 for (Int_t lev =0; lev<fNlevel; lev++){ //loop over levels
264 for (Int_t col = 0; col<fNcols; col++){ //loop over columns
268 (*index)[lev*fNcols+col]=icurrent+1;//set collumn pointer
269 Int_t id=0; //current id
270 for (Int_t row = 0; row< fNrows;row++){ //loop over rows
271 id = GetTrackIDFast(row,col,lev);
273 if ( inum> 0 ) { //if we have some tracks in buffer
275 if ((icurrent+1)>=buf->fN) buf->Expand(icurrent*2);
276 (*buf)[icurrent] = inum;
278 (*buf)[icurrent] = lastID;
287 //if we have currently izero count of non tracks digits
289 if (icurrent>=buf->fN) buf->Expand(icurrent*2);
290 (*buf)[icurrent]= -izero; //write how many under zero
296 //if we change track id from another track id
298 if ((icurrent+1)>=buf->fN) buf->Expand(icurrent*2);
299 (*buf)[icurrent] = inum;
301 (*buf)[icurrent] = lastID;
310 }//end of loop over rows
312 //if we have currently izero count of non tracks digits
314 if (icurrent>=buf->fN) buf->Expand(icurrent*2);
315 (*buf)[icurrent]= -izero; //write how many under zero
317 if ( inum> 0 ) { //if we have some tracks in buffer
319 if ((icurrent+1)>=buf->fN) buf->Expand(icurrent*2);
320 (*buf)[icurrent] = inum;
322 (*buf)[icurrent] = id;
324 }//end of loop over columns
325 }//end of loop over differnet track level
326 buf->Expand(icurrent+1);
335 void AliSimDigits::ExpandTrackBuffer2()
338 //comress track according algorithm 2 (track id comression according digit compression)
342 void AliSimDigits::CompresTrackBuffer2()
345 //comress track according algorithm 2 (track id comression according digit compression)
350 Int_t AliSimDigits::GetTrackID2(Int_t row, Int_t column, Int_t level)
352 //returnb track id of digits - for buffer compresion 2
358 AliH2F * AliSimDigits::DrawTracks( const char *option,Int_t level,
359 Float_t x1, Float_t x2, Float_t y1, Float_t y2)
362 //draw digits in given array
366 sprintf(ch,"Track Segment_%d level %d ",GetID(),level );
367 if ( (fNrows<1)|| (fNcols<1)) {
370 AliH2F * his = new AliH2F("Track histo",ch,fNrows,0,fNrows,fNcols,0,fNcols);
372 //set histogram values
373 for (Int_t i = 0; i<fNrows;i++)
374 for (Int_t j = 0; j<fNcols;j++)
375 his->Fill(i,j,GetTrackIDFast(i,j,level));
377 AliH2F *h2fsub = his->GetSubrange2d(x1,x2,y1,y2);
381 if (his==0) return 0;
382 if (option!=0) his->Draw(option);
387 TClonesArray * AliSimDigits::GenerTPCClonesArray(TClonesArray * arr)
390 //generate TClonnesArray of digits
392 TClonesArray * digits;
393 if (arr==0) digits=new TClonesArray("AliTPCdigit",300);
395 Int_t index = digits->GetEntriesFast();
396 for (Int_t row =0; row<fNrows; row++)
397 for (Int_t col =0; col<fNcols; col++){
398 Int_t amp = GetDigit(row,col);
399 if (amp>GetThreshold()){
404 dig.fPadRow =fSegmentID;
405 dig.fSector =fSegmentID;
406 dig.fTracks[0]= GetTrackID(row,col,0);
407 dig.fTracks[1]= GetTrackID(row,col,1);
408 dig.fTracks[2]= GetTrackID(row,col,2);
409 TClonesArray &ldigits = *digits;
410 new(ldigits[index++]) AliTPCdigit(dig);