2 // Author: Anders Vestbo <mailto:vestbo@fi.uib.no>, Uli Frankenfeld <mailto:franken@fi.uib.no>
3 // -- Copyright © AV
4 // changes done by Constantin Loizides <mailto:loizides@ikf.physik.uni-frankfurt.de>
7 #include "AliL3Logging.h"
8 #include "AliL3Transform.h"
11 //_____________________________________________________________
14 // Transformation class for ALICE TPC.
16 ClassImp(AliL3Transform);
19 AliL3Transform::AliL3Transform(){
24 AliL3Transform::AliL3Transform(const char* pathname){
29 AliL3Transform::~AliL3Transform(){
32 /// old init function used by Anders for AliRoot version 3.06
33 void AliL3Transform::Init(){
42 fPadPitchWidthLow = 0.400000;
43 fPadPitchWidthUp = 0.600000;
44 fZWidth = 0.56599998474121093750;
45 fZSigma = 0.22880849748219134199;
50 fPi = 3.141592653589793;
53 for(Int_t i=0;i<36;i++){
54 fCos[i] = cos( (2*fPi/18) * (i+fNRotShift) );
55 fSin[i] = sin( (2*fPi/18) * (i+fNRotShift) );
58 fX[0] = 84.570007324218750;
59 fX[1] = 85.320007324218750;
60 fX[2] = 86.070007324218750;
61 fX[3] = 86.820007324218750;
62 fX[4] = 87.570007324218750;
63 fX[5] = 88.320007324218750;
64 fX[6] = 89.070007324218750;
65 fX[7] = 89.820007324218750;
66 fX[8] = 90.570007324218750;
67 fX[9] = 91.320007324218750;
68 fX[10] = 92.070007324218750;
69 fX[11] = 92.820007324218750;
70 fX[12] = 93.570007324218750;
71 fX[13] = 94.320007324218750;
72 fX[14] = 95.070007324218750;
73 fX[15] = 95.820007324218750;
74 fX[16] = 96.570007324218750;
75 fX[17] = 97.320007324218750;
76 fX[18] = 98.070007324218750;
77 fX[19] = 98.820007324218750;
78 fX[20] = 99.570007324218750;
79 fX[21] = 100.320007324218750;
80 fX[22] = 101.070007324218750;
81 fX[23] = 101.820007324218750;
82 fX[24] = 102.570007324218750;
83 fX[25] = 103.320007324218750;
84 fX[26] = 104.070007324218750;
85 fX[27] = 104.820007324218750;
86 fX[28] = 105.570007324218750;
87 fX[29] = 106.320007324218750;
88 fX[30] = 107.070007324218750;
89 fX[31] = 107.820007324218750;
90 fX[32] = 108.570007324218750;
91 fX[33] = 109.320007324218750;
92 fX[34] = 110.070007324218750;
93 fX[35] = 110.820007324218750;
94 fX[36] = 111.570007324218750;
95 fX[37] = 112.320007324218750;
96 fX[38] = 113.070007324218750;
97 fX[39] = 113.820007324218750;
98 fX[40] = 114.570007324218750;
99 fX[41] = 115.320007324218750;
100 fX[42] = 116.070007324218750;
101 fX[43] = 116.820007324218750;
102 fX[44] = 117.570007324218750;
103 fX[45] = 118.320007324218750;
104 fX[46] = 119.070007324218750;
105 fX[47] = 119.820007324218750;
106 fX[48] = 120.570007324218750;
107 fX[49] = 121.320007324218750;
108 fX[50] = 122.070007324218750;
109 fX[51] = 122.820007324218750;
110 fX[52] = 123.570007324218750;
111 fX[53] = 124.320007324218750;
112 fX[54] = 125.070007324218750;
113 fX[55] = 125.820007324218750;
114 fX[56] = 126.570007324218750;
115 fX[57] = 127.320007324218750;
116 fX[58] = 128.070007324218750;
117 fX[59] = 128.820007324218750;
118 fX[60] = 129.570007324218750;
119 fX[61] = 130.320007324218750;
120 fX[62] = 131.070007324218750;
121 fX[63] = 131.820007324218750;
122 fX[64] = 135.054992675781250;
123 fX[65] = 136.054992675781250;
124 fX[66] = 137.054992675781250;
125 fX[67] = 138.054992675781250;
126 fX[68] = 139.054992675781250;
127 fX[69] = 140.054992675781250;
128 fX[70] = 141.054992675781250;
129 fX[71] = 142.054992675781250;
130 fX[72] = 143.054992675781250;
131 fX[73] = 144.054992675781250;
132 fX[74] = 145.054992675781250;
133 fX[75] = 146.054992675781250;
134 fX[76] = 147.054992675781250;
135 fX[77] = 148.054992675781250;
136 fX[78] = 149.054992675781250;
137 fX[79] = 150.054992675781250;
138 fX[80] = 151.054992675781250;
139 fX[81] = 152.054992675781250;
140 fX[82] = 153.054992675781250;
141 fX[83] = 154.054992675781250;
142 fX[84] = 155.054992675781250;
143 fX[85] = 156.054992675781250;
144 fX[86] = 157.054992675781250;
145 fX[87] = 158.054992675781250;
146 fX[88] = 159.054992675781250;
147 fX[89] = 160.054992675781250;
148 fX[90] = 161.054992675781250;
149 fX[91] = 162.054992675781250;
150 fX[92] = 163.054992675781250;
151 fX[93] = 164.054992675781250;
152 fX[94] = 165.054992675781250;
153 fX[95] = 166.054992675781250;
154 fX[96] = 167.054992675781250;
155 fX[97] = 168.054992675781250;
156 fX[98] = 169.054992675781250;
157 fX[99] = 170.054992675781250;
158 fX[100] = 171.054992675781250;
159 fX[101] = 172.054992675781250;
160 fX[102] = 173.054992675781250;
161 fX[103] = 174.054992675781250;
162 fX[104] = 175.054992675781250;
163 fX[105] = 176.054992675781250;
164 fX[106] = 177.054992675781250;
165 fX[107] = 178.054992675781250;
166 fX[108] = 179.054992675781250;
167 fX[109] = 180.054992675781250;
168 fX[110] = 181.054992675781250;
169 fX[111] = 182.054992675781250;
170 fX[112] = 183.054992675781250;
171 fX[113] = 184.054992675781250;
172 fX[114] = 185.054992675781250;
173 fX[115] = 186.054992675781250;
174 fX[116] = 187.054992675781250;
175 fX[117] = 188.054992675781250;
176 fX[118] = 189.054992675781250;
177 fX[119] = 190.054992675781250;
178 fX[120] = 191.054992675781250;
179 fX[121] = 192.054992675781250;
180 fX[122] = 193.054992675781250;
181 fX[123] = 194.054992675781250;
182 fX[124] = 195.054992675781250;
183 fX[125] = 196.054992675781250;
184 fX[126] = 197.054992675781250;
185 fX[127] = 198.054992675781250;
186 fX[128] = 199.054992675781250;
187 fX[129] = 200.054992675781250;
188 fX[130] = 201.054992675781250;
189 fX[131] = 202.054992675781250;
190 fX[132] = 203.054992675781250;
191 fX[133] = 204.054992675781250;
192 fX[134] = 205.054992675781250;
193 fX[135] = 206.054992675781250;
194 fX[136] = 207.054992675781250;
195 fX[137] = 208.054992675781250;
196 fX[138] = 209.054992675781250;
197 fX[139] = 210.054992675781250;
198 fX[140] = 211.054992675781250;
199 fX[141] = 212.054992675781250;
200 fX[142] = 213.054992675781250;
201 fX[143] = 214.054992675781250;
202 fX[144] = 215.054992675781250;
203 fX[145] = 216.054992675781250;
204 fX[146] = 217.054992675781250;
205 fX[147] = 218.054992675781250;
206 fX[148] = 219.054992675781250;
207 fX[149] = 220.054992675781250;
208 fX[150] = 221.054992675781250;
209 fX[151] = 222.054992675781250;
210 fX[152] = 223.054992675781250;
211 fX[153] = 224.054992675781250;
212 fX[154] = 225.054992675781250;
213 fX[155] = 226.054992675781250;
214 fX[156] = 227.054992675781250;
215 fX[157] = 228.054992675781250;
216 fX[158] = 229.054992675781250;
217 fX[159] = 230.054992675781250;
218 fX[160] = 231.054992675781250;
219 fX[161] = 232.054992675781250;
220 fX[162] = 233.054992675781250;
221 fX[163] = 234.054992675781250;
222 fX[164] = 235.054992675781250;
223 fX[165] = 236.054992675781250;
224 fX[166] = 237.054992675781250;
225 fX[167] = 238.054992675781250;
226 fX[168] = 239.054992675781250;
227 fX[169] = 240.054992675781250;
228 fX[170] = 241.054992675781250;
229 fX[171] = 242.054992675781250;
230 fX[172] = 243.054992675781250;
231 fX[173] = 244.054992675781250;
232 fX[174] = 245.054992675781250;
233 fX[175] = 246.054992675781250;
412 void AliL3Transform::Init(const char* path){
413 Init(); //call the old init function to have some initial values
415 char *pathname=new char[1024];
416 strcpy(pathname,path);
417 strcat(pathname,"/l3transform.config");
419 FILE *fptr=fopen(pathname,"r");
421 LOG(AliL3Log::kWarning,"AliL3Transform::Init","File Open")<<"Pointer to Config File \""<<pathname<<"\" 0x0!"<<ENDLOG;
425 char d1[250], d2[100], d3[100];
430 fscanf(fptr,"%s",d1);
432 if(strcmp(d1,"fNTimeBins")==0){fscanf(fptr,"%s %d %s",d2,&dummy,d3);fNTimeBins=(Int_t)dummy;}
433 else if(strcmp(d1,"fNRowLow")==0){fscanf(fptr,"%s %d %s",d2,&dummy,d3);fNRowLow=(Int_t)dummy;}
434 else if(strcmp(d1,"fNRowUp")==0){fscanf(fptr,"%s %d %s",d2,&dummy,d3);fNRowUp=(Int_t)dummy;}
435 else if(strcmp(d1,"fNSectorLow")==0){fscanf(fptr,"%s %d %s",d2,&dummy,d3);fNSectorLow=(Int_t)dummy;}
436 else if(strcmp(d1,"fNSectorUp")==0){fscanf(fptr,"%s %d %s",d2,&dummy,d3);fNSectorUp=(Int_t)dummy;}
437 else if(strcmp(d1,"fNSector")==0){fscanf(fptr,"%s %d %s",d2,&dummy,d3);fNSector=(Int_t)dummy;}
438 else if(strcmp(d1,"fPadPitchWidthLow")==0){fscanf(fptr,"%s %lf %s",d2,&ddummy,d3);fPadPitchWidthLow=(Double_t)ddummy;}
439 else if(strcmp(d1,"fPadPitchWidthUp")==0){fscanf(fptr,"%s %lf %s",d2,&ddummy,d3);fPadPitchWidthUp=(Double_t)ddummy;}
440 else if(strcmp(d1,"fZWidth")==0){fscanf(fptr,"%s %lf %s",d2,&ddummy,d3);fZWidth=(Double_t)ddummy;}
441 else if(strcmp(d1,"fZSigma")==0){fscanf(fptr,"%s %lf %s",d2,&ddummy,d3);fZSigma=(Double_t)ddummy;}
442 else if(strcmp(d1,"fNSlice")==0){fscanf(fptr,"%s %d %s",d2,&dummy,d3);fNSlice=(Int_t)dummy;}
443 else if(strcmp(d1,"fNRow")==0){
444 fscanf(fptr,"%s %d %s",d2,&dummy,d3);fNRow=(Int_t)dummy;
446 LOG(AliL3Log::kError,"AliL3Transform::Init","Overflow")<<"Number of PadRows should be 176! Check and fgrep the code for 176 to see the consequences of this major change!"<<ENDLOG;
449 else if(strcmp(d1,"fNRotShift")==0){fscanf(fptr,"%s %lf %s",d2,&ddummy,d3);fNRotShift=(Double_t)ddummy;}
450 else if(strcmp(d1,"fPi")==0){fscanf(fptr,"%s %lf %s",d2,&ddummy,d3);fPi=(Double_t)ddummy;}
451 else if(strcmp(d1,"fX[0]")==0){
452 fscanf(fptr,"%s %lf %s",d2,&ddummy,d3);fX[0]=(Double_t)ddummy;
453 for(Int_t i=1;i<fNRow;i++){fscanf(fptr,"%s %s %lf %s",d1,d2,&ddummy,d3);fX[i]=(Double_t)dummy;}
455 else if(strcmp(d1,"fNPads[0]")==0){
456 fscanf(fptr,"%s %d %s",d2,&dummy,d3);fNPads[0]=(Int_t)dummy;
457 for(Int_t i=1;i<fNRow;i++){fscanf(fptr,"%s %s %d %s",d1,d2,&dummy,d3);fNPads[i]=(Int_t)dummy;}
461 for(Int_t i=0;i<36;i++){
462 fCos[i] = cos( (2*fPi/18) * (i+fNRotShift) );
463 fSin[i] = sin( (2*fPi/18) * (i+fNRotShift) );
470 Double_t AliL3Transform::GetEta(Float_t *xyz)
472 Double_t r3 = sqrt(xyz[0]*xyz[0]+xyz[1]*xyz[1]+xyz[2]*xyz[2]);
473 Double_t eta = 0.5 * log((r3+xyz[2])/(r3-xyz[2]));
477 Double_t AliL3Transform::GetEta(Int_t padrow,Int_t pad,Int_t time)
481 Slice2Sector(0,padrow,sector,row);
482 Raw2Local(xyz,sector,row,pad,time);
487 Double_t AliL3Transform::GetPhi(Float_t *xyz)
490 Double_t phi = atan2(xyz[1],xyz[0]);
491 //if(phi<0) phi=phi+2*TMath::Pi();
495 Bool_t AliL3Transform::Slice2Sector(Int_t slice, Int_t slicerow, Int_t & sector, Int_t &row) const{
496 if(slicerow<0&&slicerow>=fNRow) return kFALSE;
497 if(slice<0||slice>=fNSlice) return kFALSE;
499 if(slicerow<fNRowLow){
504 sector = slice+fNSlice;
505 row = slicerow-fNRowLow;
510 Bool_t AliL3Transform::Sector2Slice(Int_t & slice, Int_t sector) const{
511 if(sector<0||sector>=fNSector) return kFALSE;
512 if(sector<fNSectorLow) slice = sector;
513 else slice = sector - fNSectorLow;
517 Bool_t AliL3Transform::Sector2Slice(Int_t & slice, Int_t & slicerow,Int_t sector, Int_t row) const{
518 if(sector<0||sector>=fNSector||row<0) return kFALSE;
519 if(sector<fNSectorLow){
520 if(row>=fNRowLow) return kFALSE;
525 if(row>=fNRowUp) return kFALSE;
526 slice = sector - fNSectorLow;
527 slicerow = row + fNRowLow;
532 Double_t AliL3Transform::Row2X(Int_t slicerow){
533 if(slicerow<0||slicerow>=fNRow) return 0;
537 void AliL3Transform::Local2Global(Float_t *xyz,Int_t slice)
539 //Transformation to global coordinate system
547 xyz[2]=xyz[2];//global z=local z
550 void AliL3Transform::Local2GlobalAngle(Float_t *angle,Int_t slice){
551 angle[0] = fmod(angle[0]+(slice+0.5)*(2*fPi/18),2*fPi);
554 void AliL3Transform::Global2LocalAngle(Float_t *angle,Int_t slice){
555 angle[0] = angle[0]-(slice+0.5)*(2*fPi/18);
556 if(angle[0]<0) angle[0]+=2*fPi;
559 void AliL3Transform::Raw2Local(Float_t *xyz,Int_t sector,Int_t row,Float_t pad,Float_t time)
561 //Transformation from rawdata to local coordinate system
563 Int_t slice,slicerow;
564 Sector2Slice(slice, slicerow, sector, row);
566 xyz[0]=Row2X(slicerow);
567 Int_t npads= fNPads[slicerow];
568 if(sector<fNSectorLow)
569 xyz[1]=(pad-0.5*(npads-1))*fPadPitchWidthLow;
571 xyz[1]=(pad-0.5*(npads-1))*fPadPitchWidthUp;
572 xyz[2]=fZWidth*time-3.*fZSigma;
581 xyz[2]=sign*(250.-xyz[2]);
583 //Int_t nis=fNSectorLow;
584 //Int_t nos=fNSectorUp;
585 //if((sector<nis)/2 || ((sector-nis)<nos/2)) sign=1;
589 void AliL3Transform::Local2Global(Float_t *xyz,Int_t sector,Int_t row)
591 //Transformation to global coordinate system
592 Int_t slice,slicerow;
593 Sector2Slice(slice, slicerow, sector, row);
594 Float_t r=Row2X(slicerow);
595 Float_t cs = fCos[slice];
596 Float_t sn = fSin[slice];
598 xyz[0]=r*cs-xyz[1]*sn;
599 xyz[1]=r*sn+xyz[1]*cs;
600 xyz[2]=xyz[2];//global z=local z
603 Double_t AliL3Transform::GetMaxY(Int_t slicerow)
606 if(slicerow < fNRowLow)
607 return fPadPitchWidthLow*fNPads[slicerow]/2;
610 return fPadPitchWidthUp*fNPads[slicerow]/2;
613 void AliL3Transform::Global2Local(Float_t *xyz,Int_t sector,Bool_t isSlice)
618 Sector2Slice(slice, sector);
621 Float_t cs = fCos[slice];
622 Float_t sn = fSin[slice];
623 Float_t x1 = xyz[0]*cs + xyz[1]*sn;
624 Float_t y1 = -xyz[0]*sn + xyz[1]*cs;
629 void AliL3Transform::Raw2Global(Float_t *xyz,Int_t sector,Int_t row,Float_t pad,Float_t time)
631 //Transformation from raw to global coordinates
633 Raw2Local(xyz,sector,row,pad,time);
634 Local2Global(xyz,sector,row);
637 void AliL3Transform::Local2Raw(Float_t *xyz,Int_t sector,Int_t row)
639 //Transformation from local coordinates to raw
641 Int_t slice,slicerow;
642 Sector2Slice(slice, slicerow, sector, row);
644 if(sector<fNSectorLow)
645 xyz[1]=xyz[1]/fPadPitchWidthLow+0.5*(fNPads[slicerow]-1);
647 xyz[1]=xyz[1]/fPadPitchWidthUp+0.5*(fNPads[slicerow]-1);
649 Int_t nis=fNSectorLow;
650 Int_t nos=fNSectorUp;
652 if ((sector<nis/2) || ((sector-nis)<nos/2)) sign=1;
653 xyz[2]=250-sign*xyz[2];
654 xyz[2]=(xyz[2]+3.*fZSigma)/fZWidth;
657 void AliL3Transform::Global2Raw(Float_t *xyz,Int_t sector,Int_t row)
659 //Transformation from global coordinates to raw.
661 Global2Local(xyz,sector);
662 Local2Raw(xyz,sector,row);