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 1.5 2001/11/24 16:10:22 kowal2
21 Revision 1.4 2000/10/05 16:01:49 kowal2
22 Corrected for memory leaks.
24 Revision 1.3 2000/06/30 12:07:49 kowal2
25 Updated from the TPC-PreRelease branch
27 Revision 1.2.4.3 2000/06/26 07:39:42 kowal2
28 Changes to obey the coding rules
30 Revision 1.2.4.2 2000/06/25 08:38:41 kowal2
31 Splitted from AliTPCtracking
33 Revision 1.2.4.1 2000/06/14 16:45:13 kowal2
34 Improved algorithms. Compiler warnings removed.
36 Revision 1.2 2000/04/17 09:37:33 kowal2
37 removed obsolete AliTPCDigitsDisplay.C
39 Revision 1.1.4.2 2000/04/10 11:37:42 kowal2
41 Digits handling in a new data structure
47 ///////////////////////////////////////////////////////////////////////////////
49 // Alice segment manager object //
51 // AliSimDigits object (derived from AliDigits) //
52 // provide additional track information to digit //
54 // Origin: Marian Ivanov GSI Darmstadt //
58 ///////////////////////////////////////////////////////////////////////////////
63 #include "AliSegmentID.h"
65 #include "AliArrayI.h"
66 #include "AliArrayS.h"
67 #include "AliDigits.h"
68 #include "AliSimDigits.h"
70 #include <TClonesArray.h>
74 //_____________________________________________________________________________
75 //_____________________________________________________________________________
76 //_____________________________________________________________________________
77 ClassImp(AliSimDigits)
79 AliSimDigits::AliSimDigits()
81 // AliDigits::Invalite();
86 AliSimDigits::~AliSimDigits()
98 void AliSimDigits::InvalidateTrack()
101 //set default (invalid parameters)
102 if ( fTracks != 0) delete fTracks;
103 fTracks = new AliArrayI;
104 if ( fTrIndex != 0) delete fTrIndex;
105 fTrIndex = new AliArrayI;
107 for (Int_t i = 0; i<3; i++){
113 void AliSimDigits::AllocateTrack(Int_t length)
116 //construct empty buffer fElements and fTracks with size fNrows x fNcols x
120 fTracks->Set(fNcols*fNrows*fNlevel);
125 Int_t AliSimDigits::GetTrackID(Int_t row, Int_t column, Int_t level)
129 if (fTrBufType == 0) return GetTrackIDFast(row, column,level);
130 if (fTrBufType == 1) return GetTrackID1(row, column,level);
131 if (fTrBufType == 2) return GetTrackID2(row, column,level);
135 void AliSimDigits::ExpandTrackBuffer()
138 //expand buffer to two dimensional array
140 Error("ExpandBuffer", "buffer doesn't exist");
143 if (fTrBufType==0) return; //buffer expanded
144 if (fTrBufType==1) {ExpandTrackBuffer1(); return;}
145 if (fTrBufType==2) ExpandTrackBuffer2();
149 void AliSimDigits::CompresTrackBuffer(Int_t bufType)
152 //compres buffer according buffertype algorithm
155 Error("CompressBuffer", "buffer doesn't exist");
158 if (fTrBufType == bufType) return;
160 if (fTrBufType>0) ExpandTrackBuffer();
161 if (fTrBufType !=0) {
162 Error("CompressBuffer", "buffer doesn't exist");
165 //compress buffer of type 1
167 if (bufType==1) {CompresTrackBuffer1();return;}
168 if (bufType==2) CompresTrackBuffer2();
172 Int_t AliSimDigits::GetTrackID1(Int_t row, Int_t column, Int_t level)
174 //return track ID of digits - for buffer compresion 2
176 i = level*fNcols+column;
177 if ( (i+1)>=fTrIndex->fN) n2 = fTracks->fN;
179 n2 = fTrIndex->At(i+1);
180 n1 = fTrIndex->At(i);
184 for (i = n1;(i<n2);i++){
186 Int_t num = fTracks->At(i);
192 num = fTracks->At(i);
205 if ( (row>=rowold) && (row<=rownew) ) return id;
206 if (row < rownew ) return -2; //empty track
211 void AliSimDigits::ExpandTrackBuffer1()
214 //expand track compressed according algorithm 1 (track id comression independent to the digit compression)
215 // !!in expanded tracks we don't use fTrIndex array
219 Int_t all = fNrows*fNcols; //total number of digits
220 Int_t elems = all*fNlevel; //length of the buffer
222 AliArrayI * buf = new AliArrayI;
232 //oposite signa means how many unwrited (under threshold) values
233 Int_t num = fTracks->At(i);
234 if (num<0) row-=num; //negative number mean number of zeroes (no tracks of gibven level no need to write to array)
237 Int_t id = fTracks->At(i);
238 for (j = 0; j<num; j++,row++) (*buf)[level*all+col*fNrows+row]=id;
248 }//end of loop over digits
253 void AliSimDigits::CompresTrackBuffer1()
256 //comress track according algorithm 1 (track id comression independent to the digit compression)
260 AliArrayI * buf = new AliArrayI; //create new buffer
261 buf->Set(fNrows*fNcols*fNlevel); //lets have the nearly the "worst case"
262 AliArrayI * index = new AliArrayI;
263 index->Set(fNcols*fNlevel);
267 Int_t icurrent=-1; //current index
268 Int_t izero; //number of zero
269 Int_t inum; //number of digits with the same current track id
270 Int_t lastID =0; //last track id
272 Int_t *cbuff=fTracks->GetArray(); //MI change
274 for (Int_t lev =0; lev<fNlevel; lev++){ //loop over levels
275 for (Int_t col = 0; col<fNcols; col++){ //loop over columns
279 (*index)[lev*fNcols+col]=icurrent+1;//set collumn pointer
280 Int_t id=0; //current id
281 for (Int_t row = 0; row< fNrows;row++){ //loop over rows
282 id = *cbuff; //MI change
283 // id = GetTrackIDFast(row,col,lev);
285 if ( inum> 0 ) { //if we have some tracks in buffer
287 if ((icurrent+1)>=buf->fN) buf->Expand(icurrent*2+1); //MI change - allocate +1
288 (*buf)[icurrent] = inum;
290 (*buf)[icurrent] = lastID;
299 //if we have currently izero count of non tracks digits
301 if (icurrent>=buf->fN) buf->Expand(icurrent*2+1);
302 (*buf)[icurrent]= -izero; //write how many under zero
308 //if we change track id from another track id
310 if ((icurrent+1)>=buf->fN) buf->Expand(icurrent*2+1);
311 (*buf)[icurrent] = inum;
313 (*buf)[icurrent] = lastID;
322 }//end of loop over row
324 //if we have currently izero count of non tracks digits
326 if (icurrent>=buf->fN) buf->Expand(icurrent*2);
327 (*buf)[icurrent]= -izero; //write how many under zero
329 if ( inum> 0 ) { //if we have some tracks in buffer
331 if ((icurrent+1)>=buf->fN) buf->Expand(icurrent*2);
332 (*buf)[icurrent] = inum;
334 (*buf)[icurrent] = id;
336 }//end of loop over columns
337 }//end of loop over differnet track level
338 buf->Expand(icurrent+1);
347 void AliSimDigits::ExpandTrackBuffer2()
350 //comress track according algorithm 2 (track id comression according digit compression)
354 void AliSimDigits::CompresTrackBuffer2()
357 //comress track according algorithm 2 (track id comression according digit compression)
362 Int_t AliSimDigits::GetTrackID2(Int_t row, Int_t column, Int_t level)
364 //returnb track id of digits - for buffer compresion 2
370 AliH2F * AliSimDigits::DrawTracks( const char *option,Int_t level,
371 Float_t x1, Float_t x2, Float_t y1, Float_t y2)
374 //draw digits in given array
378 sprintf(ch,"Track Segment_%d level %d ",GetID(),level );
379 if ( (fNrows<1)|| (fNcols<1)) {
382 AliH2F * his = new AliH2F("Track histo",ch,fNrows,0,fNrows,fNcols,0,fNcols);
384 //set histogram values
385 for (Int_t i = 0; i<fNrows;i++)
386 for (Int_t j = 0; j<fNcols;j++)
387 his->Fill(i,j,GetTrackIDFast(i,j,level));
389 AliH2F *h2fsub = his->GetSubrange2d(x1,x2,y1,y2);
393 if (his==0) return 0;
394 if (option!=0) his->Draw(option);
399 TClonesArray * AliSimDigits::GenerTPCClonesArray(TClonesArray * arr)
402 //generate TClonnesArray of digits
404 TClonesArray * digits;
405 if (arr==0) digits=new TClonesArray("AliTPCdigit",300);
407 Int_t index = digits->GetEntriesFast();
408 for (Int_t row =0; row<fNrows; row++)
409 for (Int_t col =0; col<fNcols; col++){
410 Int_t amp = GetDigit(row,col);
411 if (amp>GetThreshold()){
416 dig.fPadRow =fSegmentID;
417 dig.fSector =fSegmentID;
418 dig.fTracks[0]= GetTrackID(row,col,0);
419 dig.fTracks[1]= GetTrackID(row,col,1);
420 dig.fTracks[2]= GetTrackID(row,col,2);
421 TClonesArray &ldigits = *digits;
422 new(ldigits[index++]) AliTPCdigit(dig);