ATLAS Offline Software
PtEndcapLUT.cxx
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1 /*
2  Copyright (C) 2002-2022 CERN for the benefit of the ATLAS collaboration
3 */
4 
5 #include "PtEndcapLUT.h"
6 #include "CLHEP/Vector/TwoVector.h"
7 #include <fstream>
8 #include <sstream>
9 
11 
12 // --------------------------------------------------------------------------------
13 // --------------------------------------------------------------------------------
14 
16  const std::string& name,
17  const IInterface* parent):
19 {
20 }
21 
22 // --------------------------------------------------------------------------------
23 // --------------------------------------------------------------------------------
24 
26 {
27  for (TableMap::iterator it = m_tables.begin(); it != m_tables.end(); ++it) {
28  delete it->second;
29  }
30 }
31 
32 // --------------------------------------------------------------------------------
33 // --------------------------------------------------------------------------------
34 
36 {
37  if (m_side < other.m_side) return (true);
38  if (m_side > other.m_side) return (false);
39  if (m_charge < other.m_charge) return (true);
40  if (m_charge > other.m_charge) return (false);
41  if (m_type < other.m_type) return (true);
42  if (m_type > other.m_type) return (false);
43  return (false);
44 }
45 
46 // --------------------------------------------------------------------------------
47 // --------------------------------------------------------------------------------
48 
50 {
51  std::ostringstream ss;
52  ss << "side=" << m_side << " charge=" << m_charge << " type=" << dt2s(m_type);
53  return ss.str();
54 }
55 
56 // --------------------------------------------------------------------------------
57 // --------------------------------------------------------------------------------
58 
59 StatusCode TrigL2MuonSA::PtEndcapLUT::readLUT(const std::string& lut_fileName)
60 {
61  std::ifstream ifs(lut_fileName.c_str());
62  if (!ifs.is_open()) {
63  ATH_MSG_ERROR("Cannot open EndcapLUT file " << lut_fileName);
64  return StatusCode::FAILURE;
65  }
66 
67  m_tables.clear();
68  std::string line;
69  int line_no = 0;
70  TableType* table = NULL;
71 
72  while (!ifs.eof()) {
73 
74  getline(ifs, line);
75  line_no++;
76 
77  if (line.empty()) continue;
78 
79  if (line.substr(0, 5) == "side=") {
80  char side, charge, ctype[15];
81 
82  if (sscanf(line.c_str(), "side=%c charge=%c %14s", &side, &charge, ctype) != 3) {
83  ATH_MSG_ERROR("Invalid header line " << line_no << " in EndcapLUT file " << lut_fileName);
84  return StatusCode::FAILURE;
85  }
86 
87  DataType type = s2dt(ctype);
88  if ((side != '-' && side != '+') || (charge != '-' && charge != '+') || type == INVALID) {
89  ATH_MSG_ERROR("Invalid header line " << line_no << " in EndcapLUT file " << lut_fileName);
90  return StatusCode::FAILURE;
91  }
92 
93  KeyType key(side == '+' ? 1 : 0, charge == '+' ? 1 : 0, type);
94  table = new TableType();
95  m_tables.insert(TableMap::value_type(key, table));
96  ATH_MSG_DEBUG("Created table for " << key.toString());
97 
98  } else {
99 
100  if (table == NULL) {
101  ATH_MSG_ERROR("Missing header line " << line_no << " in EndcapLUT file " << lut_fileName);
102  return StatusCode::FAILURE;
103  }
104 
105  int iEta, iPhi;
106  double xcept, slope;
107  if (sscanf(line.c_str(), "%3d %3d %15lf %15lf", &iEta, &iPhi, &xcept, &slope) != 4) {
108  ATH_MSG_ERROR("Invalid data line " << line_no << " in EndcapLUT file " << lut_fileName);
109  return StatusCode::FAILURE;
110  }
111  table->m_xcepts[iEta-1][iPhi] = xcept;
112  table->m_slopes[iEta-1][iPhi] = slope;
113  }
114  }
115  ifs.close();
116 
117  return StatusCode::SUCCESS;
118 }
119 
120 // --------------------------------------------------------------------------------
121 // --------------------------------------------------------------------------------
122 
123 double TrigL2MuonSA::PtEndcapLUT::alpha(double z1, double r1, double z2, double r2) const
124 {
125  CLHEP::Hep2Vector mid1(z1, r1);
126  CLHEP::Hep2Vector mid2(z2, r2);
127  CLHEP::Hep2Vector dir = mid2 - mid1;
128 
129  if(std::abs(mid1.unit() * dir.unit()) > 1.) return 0;
130 
131  double a = std::acos(mid1.unit() * dir.unit());
132 
133  return a;
134 }
135 
136 // --------------------------------------------------------------------------------
137 // --------------------------------------------------------------------------------
138 
139 double TrigL2MuonSA::PtEndcapLUT::radius(double z1, double r1, double s1, double z2, double r2, double s2, double deltar) const
140 {
141  float cr1 = 0.080/400;
142  float cr2 = cr1;
143  double x1 = z1;
144 
145  if (std::abs(x1)>=0.1) {
146  double x2 = z2;
147  double y1 = r1;
148  double y2 = r2;
149  double A1 = s1;
150  double A2 = s2;
151  if(!(std::abs(s2+999)<0.1)) {
152  A2 = s2;
153  cr2 = cr1/10;
154  }
155 
156  // find centre of circonference
157  double xm = (x1+x2)/2.;
158  double ym = (y1+y2)/2.;
159  double c1 = (x2-x1)*xm+(y2-y1)*ym;
160  double c2_1 = -x1-A1*y1;
161  double c2_2 = -x2-A2*y2;
162  double yR1 = (-c1-c2_1*(x2-x1))/(A1*(x2-x1)-(y2-y1));
163  double yR2 = (-c1-c2_2*(x2-x1))/(A2*(x2-x1)-(y2-y1));
164  double xR1 = -A1*yR1-c2_1;
165  double xR2 = -A2*yR2-c2_2;
166 
167  double xR = ((1./cr1)*xR1+(1./cr2)*xR2)/((1./cr1)+(1./cr2));
168  double yR = ((1./cr1)*yR1+(1./cr2)*yR2)/((1./cr1)+(1./cr2));
169  double sign = deltar / std::abs(deltar);
170  double radius = 0.5*(std::sqrt((xR-x1)*(xR-x1)+(yR-y1)*(yR-y1))+std::sqrt((xR-x2)*(xR-x2)+(yR-y2)*(yR-y2)));
171  return(sign * radius);
172  } else {
173  return 0.0;
174  }
175 }
176 
177 // --------------------------------------------------------------------------------
178 // --------------------------------------------------------------------------------
179 
180 double TrigL2MuonSA::PtEndcapLUT::lookup(int side, int charge, DataType type, int iEta, int iPhi, double value) const
181 {
182  ATH_MSG_DEBUG("lookup(side=" << side << ",charge=" << charge
183  << ",type=" << dt2s(type) << ",iEta=" << iEta
184  << ",iPhi=" << iPhi << ",value=" << value << ")");
185 
186  if (iEta == -1) iEta = 0;
187  if (iEta == 30) iEta = 29;
188 
189  if (iEta < 0 || iEta >= ETAS || iPhi < 0 || iPhi >= PHISEE) {
190  ATH_MSG_WARNING("lookup(" << side << ", " << charge << ", " << dt2s(type)
191  << ", " << iEta << ", " << iPhi << ") Invalid indices");
192  return 0.0;
193  }
194 
195  TableMap::const_iterator it = m_tables.find(KeyType(side, charge, type));
196 
197  if (it == m_tables.end()) {
198  ATH_MSG_ERROR("lookup(" << side << ", " << charge << ", " << dt2s(type)
199  << ", " << iEta << ", " << iPhi << ") Invalid key");
200  return 0.0;
201  }
202 
203  double pt = 0;
204  TableType* table = it->second;
205 
206  double b = table->m_xcepts[iEta][iPhi];
207  double c = table->m_slopes[iEta][iPhi];
208  const double PT_MAX = 500; // 500 GeV upper limit
209  const double ZERO_LIMIT = 1e-5;
210 
211  if( std::abs(c) < ZERO_LIMIT ) {
212 
213  if( std::abs(b) < ZERO_LIMIT ) {
214 
215  pt = PT_MAX;
216 
217  } else {
218 
219  double ptinv = value / b;
220 
221  if( ptinv < 0 ) {
222 
223  ATH_MSG_WARNING("Pol2: ptinv < 0, ptinv=" << ptinv);
224 
225  } else {
226 
227  if( ptinv < (1/PT_MAX) ) pt = PT_MAX;
228  else { pt = 1/ptinv; }
229 
230  }
231  }
232 
233  } else {
234 
235  double judge = b*b + 4*c*value;
236 
237  if( judge > 0 ) {
238 
239  double ptinv = (-b + pow(judge,0.5)) / c / 2;
240 
241  if( ptinv < 0 ) {
242 
243  ATH_MSG_WARNING("Pol2: ptinv < 0, ptinv=" << ptinv);
244 
245  } else {
246 
247  if( ptinv < (1/PT_MAX) ) {
248  pt = PT_MAX;
249  } else {
250  pt = 1/ptinv;
251  }
252  }
253  }
254  }
255 
256  ATH_MSG_DEBUG("Pol2: value=" << value);
257  ATH_MSG_DEBUG("Pol2: b=" << b << " c=" << c << " pt=" << pt);
258  pt *= 1000; // convert to MeV
259 
260  return pt;
261 }
262 
263 // --------------------------------------------------------------------------------
264 // --------------------------------------------------------------------------------
265 
267 {
268  std::string stype(type);
269  if (stype == "alphapol2") return (ALPHAPOL2);
270  if (stype == "betapol2") return (BETAPOL2);
271  if (stype == "tgcalphapol2") return (TGCALPHAPOL2);
272  if (stype == "invradiuspol2") return (INVRADIUSPOL2);
273  if (stype == "cscpol2") return (CSCPOL2);
274  return (INVALID);
275 }
276 
277 // --------------------------------------------------------------------------------
278 // --------------------------------------------------------------------------------
279 
281 {
282  switch (type) {
283 
284  case ALPHAPOL2:
285  return ("alphapol2"); break;
286 
287  case BETAPOL2:
288  return ("betapol2"); break;
289 
290  case TGCALPHAPOL2:
291  return ("tgcalphapol2"); break;
292 
293  case INVRADIUSPOL2:
294  return ("invradiuspol2"); break;
295 
296  case CSCPOL2:
297  return ("cscpol2"); break;
298 
299  case INVALID:
300  return ("invalid"); break;
301 
302  default:
303  return ("invalid"); break;
304  }
305 }
306 
307 // --------------------------------------------------------------------------------
308 // --------------------------------------------------------------------------------
309 
310 double TrigL2MuonSA::PtEndcapLUT::ptcombined(int iEta, int iPhi, double ApT, double BpT, double &CApT, \
311  double &CBpT) const
312 {
313  ATH_MSG_DEBUG("pTcombined("
314  << "iEta=" << iEta
315  << "iPhi=" << iPhi
316  << "Alpha pT=" << ApT
317  << "Beta pT=" << BpT
318  << ")" );
319 
320  if (iEta == -1) iEta = 0;
321  if (iEta == 30) iEta = 29;
322 
323  if (iEta < 0 || iEta >= ETAS || iPhi < 0 || iPhi >= PHIS) {
324  ATH_MSG_WARNING("pTcombined("<< iEta << ", " << iPhi << ") Invalid indices");
325  return 0.0;
326  }
327 
328  const float ZERO_LIMIT = 1e-5;
329  int iphibin=iPhi;
330  int ietabin=iEta/6;
331  if(iPhi==5||iPhi==6)iphibin=5;
332  if(iPhi==4||iPhi==7)iphibin=4;
333  if(iPhi==3||iPhi==8)iphibin=3;
334  if(iPhi==2||iPhi==9)iphibin=2;
335  if(iPhi==1||iPhi==10)iphibin=1;
336  if(iPhi==0||iPhi==11)iphibin=0;
337  CApT=0.;
338  CBpT=0.;
339  double Ameana = m_meana[ietabin][iphibin][0];
340  double Ameanb = m_meanb[ietabin][iphibin][0];
341  double Ameanc = m_meanc[ietabin][iphibin][0];
342  double Bmeana = m_meana[ietabin][iphibin][1];
343  double Bmeanb = m_meanb[ietabin][iphibin][1];
344  double Bmeanc = m_meanc[ietabin][iphibin][1];
345 
346  double Asigmaa = m_sigmaa[ietabin][iphibin][0];
347  double Asigmab = m_sigmab[ietabin][iphibin][0];
348  double Asigmac = m_sigmac[ietabin][iphibin][0];
349  double Bsigmaa = m_sigmaa[ietabin][iphibin][1];
350  double Bsigmab = m_sigmab[ietabin][iphibin][1];
351  double Bsigmac = m_sigmac[ietabin][iphibin][1];
352 
353 
354  double MeanAP = ( std::abs(ApT) > ZERO_LIMIT)? (Ameana + Ameanb * std::exp( Ameanc / ApT)) : 1.0;
355  double MeanBP = ( std::abs(BpT) > ZERO_LIMIT)? (Bmeana + Bmeanb * std::exp( Bmeanc / BpT)) : 1.0;
356  double ApT_tmp = ( std::abs(1-MeanAP) > ZERO_LIMIT)? (std::abs(ApT) / (1-MeanAP)) : 1.0;
357  ApT_tmp = std::abs(ApT_tmp);
358  if(ApT_tmp >= 500) ApT_tmp = 500;
359  double BpT_tmp = ( std::abs(1-MeanBP) > ZERO_LIMIT)? (std::abs(BpT) / (1-MeanBP)) : 1.0;
360  BpT_tmp = std::abs(BpT_tmp);
361  if(BpT_tmp >= 500) BpT_tmp = 500;
362 
363  CApT = ApT_tmp;
364  CBpT = BpT_tmp;
365 
366  if(ApT == 0. ) CApT = 0.;
367  if(BpT == 0. ) CBpT = 0.;
368  double NSigmaA= Asigmaa * std::abs(ApT_tmp) * std::abs(ApT_tmp) + Asigmab * std::abs(ApT_tmp) + Asigmac;
369  double NSigmaB= Bsigmaa * std::abs(BpT_tmp) * std::abs(BpT_tmp) + Bsigmab * std::abs(BpT_tmp) + Bsigmac;
370 
371  double NVsigpTA =(std::abs(ApT_tmp) > ZERO_LIMIT&& std::abs(NSigmaA) > ZERO_LIMIT)? (1/(NSigmaA * ApT_tmp) ): 1.0;
372  double NVsigpTB =(std::abs(BpT_tmp) > ZERO_LIMIT&& std::abs(NSigmaB) > ZERO_LIMIT)? (1/(NSigmaB * BpT_tmp) ): 1.0;
373  double NVsigAsq =(std::abs(NSigmaA) > ZERO_LIMIT)? (1/(NSigmaA * NSigmaA)) : 1.0;
374  double NVsigBsq =(std::abs(NSigmaB) > ZERO_LIMIT)? (1/(NSigmaB * NSigmaB)) : 1.0;
375 
376  double NVsigpTAsq = NVsigpTA * NVsigpTA;
377  double NVsigpTBsq = NVsigpTB * NVsigpTB;
378  double pt = (std::abs(NVsigAsq + NVsigBsq) > ZERO_LIMIT)? (1/std::sqrt((NVsigpTAsq + NVsigpTBsq)/(NVsigAsq + NVsigBsq))) : 0.;
379  if(pt>500) pt = 500.;
380  return pt;
381 }
382 // --------------------------------------------------------------------------------
383 // --------------------------------------------------------------------------------
384 
385 StatusCode TrigL2MuonSA::PtEndcapLUT::readLUTSigmaMean(const std::string& lut_mean, const std::string& lut_sigma)
386 {
387  std::ifstream ifsmean(lut_mean.c_str());
388  std::ifstream ifssigma(lut_sigma.c_str());
389  if (!ifsmean.is_open()) {
390  ATH_MSG_ERROR("Cannot open EndcapLUT Mean file " << lut_mean);
391  return StatusCode::FAILURE;
392  }
393  if (!ifssigma.is_open()) {
394  ATH_MSG_ERROR("Cannot open EndcapLUT Sigma file " << lut_sigma);
395  return StatusCode::FAILURE;
396  }
397 
398  std::string line;
399 
400  for(int ei=0; ei < ETAS1; ei++){
401  for(int pi=0; pi < PHIS1; pi++){
402  for(int pti=0; pti < PTS1; pti++){
403  m_meana[ei][pi][pti] =0.;
404  m_meanb[ei][pi][pti] =0.;
405  m_meanc[ei][pi][pti] =0.;
406  m_sigmaa[ei][pi][pti]=0.;
407  m_sigmab[ei][pi][pti]=0.;
408  m_sigmac[ei][pi][pti]=0.;
409  }
410  }
411  }
412 
413  while (!ifsmean.eof()) {
414  getline(ifsmean, line);
415  if (line.empty()) continue;
416 
417  int iEta, iPhi, iNP;
418  double tmp_par1, tmp_par2, tmp_par3;
419  if (sscanf(line.c_str(), "%d %d %d %lf %lf %lf", &iEta, &iPhi, &iNP, &tmp_par1, &tmp_par2, &tmp_par3) != 6) {
420  ATH_MSG_ERROR(" Invalid data in mean EndcapLUT file " << lut_mean);
421  return StatusCode::FAILURE;
422  }
423 
424  m_meana[iEta][iPhi][iNP] = tmp_par1;
425  m_meanb[iEta][iPhi][iNP] = tmp_par2;
426  m_meanc[iEta][iPhi][iNP] = tmp_par3;
427  }
428  ifsmean.close();
429  std::string line2;
430  while (!ifssigma.eof()) {
431  getline(ifssigma, line2);
432  if (line2.empty()) continue;
433 
434  int iEta, iPhi, iNP;
435  double tmp_par1, tmp_par2, tmp_par3;
436  if (sscanf(line2.c_str(), "%d %d %d %lf %lf %lf", &iEta, &iPhi, &iNP, &tmp_par1, &tmp_par2, &tmp_par3) != 6) {
437  ATH_MSG_ERROR(" Invalid data in mean EndcapLUT file " << lut_mean);
438  return StatusCode::FAILURE;
439  }
440 
441  m_sigmaa[iEta][iPhi][iNP] = tmp_par1;
442  m_sigmab[iEta][iPhi][iNP] = tmp_par2;
443  m_sigmac[iEta][iPhi][iNP] = tmp_par3;
444  }
445  ifssigma.close();
446 
447  return StatusCode::SUCCESS;
448 }
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