L1TObjects/src/L1MuDTPhiLut.cc

0001 //-------------------------------------------------
0002 //
0003 //   Class: L1MuDTPhiLut
0004 //
0005 //   Description: Look-up tables for phi assignment
0006 //
0007 //
0008 //   $Date: 2010/05/12 23:03:43 $
0009 //   $Revision: 1.7 $
0010 //
0011 //   Author :
0012 //   N. Neumeister            CERN EP
0013 //   J. Troconiz              UAM Madrid
0014 //
0015 //--------------------------------------------------
0016
0017 //-----------------------
0018 // This Class's Header --
0019 //-----------------------
0020
0021 #include "CondFormats/L1TObjects/interface/L1MuDTPhiLut.h"
0022
0023 //---------------
0024 // C++ Headers --
0025 //---------------
0026
0027 #include <iostream>
0028 #include <ostream>
0029 #include <iomanip>
0030 #include <string>
0031 #include <cstdlib>
0032
0033 //-------------------------------
0034 // Collaborating Class Headers --
0035 //-------------------------------
0036
0037 #include "FWCore/Utilities/interface/FileInPath.h"
0038 #include "CondFormats/L1TObjects/interface/DTTFBitArray.h"
0039 #include "CondFormats/L1TObjects/interface/L1TriggerLutFile.h"
0040
0041 using namespace std;
0042
0043 // --------------------------------
0044 //       class L1MuDTPhiLut
0045 //---------------------------------
0046
0047 //----------------
0048 // Constructors --
0049 //----------------
0050
0051 L1MuDTPhiLut::L1MuDTPhiLut() {
0052   phi_lut.reserve(2);
0053   setPrecision();
0054   //  if ( load() != 0 ) {
0055   //    cout << "Can not open files to load phi-assignment look-up tables for DTTrackFinder!" << endl;
0056   //  }
0057
0058   //  if ( L1MuDTTFConfig::Debug(6) ) print();
0059 }
0060
0061 //--------------
0062 // Destructor --
0063 //--------------
0064
0065 L1MuDTPhiLut::~L1MuDTPhiLut() {
0066   vector<LUT>::iterator iter;
0067   for (iter = phi_lut.begin(); iter != phi_lut.end(); iter++) {
0068     (*iter).clear();
0069   }
0070
0071   phi_lut.clear();
0072 }
0073
0074 //--------------
0075 // Operations --
0076 //--------------
0077
0078 //
0079 // reset phi-assignment look-up tables
0080 //
0081 void L1MuDTPhiLut::reset() { phi_lut.clear(); }
0082
0083 //
0084 // load phi-assignment look-up tables
0085 //
0086 int L1MuDTPhiLut::load() {
0087   // get directory name
0088   string defaultPath = "L1TriggerConfig/DTTrackFinder/parameters/";
0089   string phi_dir = "L1TriggerData/DTTrackFinder/Ass/";
0090   string phi_str = "";
0091
0092   // precision : in the look-up tables the following precision is used :
0093   // address (phib) ...10 bits, phi ... 12 bits
0094
0095   int sh_phi = 12 - nbit_phi;
0096   int sh_phib = 10 - nbit_phib;
0097
0098   // loop over all phi-assignment methods
0099   for (int idx = 0; idx < 2; idx++) {
0100     switch (idx) {
0101       case 0: {
0102         phi_str = "phi12";
0103         break;
0104       }
0105       case 1: {
0106         phi_str = "phi42";
0107         break;
0108       }
0109     }
0110
0111     // assemble file name
0112     edm::FileInPath lut_f = edm::FileInPath(string(defaultPath + phi_dir + phi_str + ".lut"));
0113     const string& phi_file = lut_f.fullPath();
0114
0115     // open file
0116     L1TriggerLutFile file(phi_file);
0117     if (file.open() != 0)
0118       return -1;
0119     //    if ( L1MuDTTFConfig::Debug(1) ) cout << "Reading file : "
0120     //                                         << file.getName() << endl;
0121
0122     LUT tmplut;
0123
0124     int number = -1;
0125     int adr_old = -512 >> sh_phib;
0126     int sum_phi = 0;
0127
0128     // read values
0129     while (file.good()) {
0130       int adr = (file.readInteger()) >> sh_phib;
0131       int phi = file.readInteger();
0132
0133       number++;
0134
0135       if (adr != adr_old) {
0136         assert(number);
0137         tmplut.insert(make_pair(adr_old, ((sum_phi / number) >> sh_phi)));
0138
0139         adr_old = adr;
0140         number = 0;
0141         sum_phi = 0;
0142       }
0143
0144       sum_phi += phi;
0145
0146       if (!file.good())
0147         file.close();
0148     }
0149
0150     file.close();
0151     phi_lut.push_back(tmplut);
0152   }
0153   return 0;
0154 }
0155
0156 //
0157 // print phi-assignment look-up tables
0158 //
0159 void L1MuDTPhiLut::print() const {
0160   cout << endl;
0161   cout << "L1 barrel Track Finder Phi-Assignment look-up tables :" << endl;
0162   cout << "======================================================" << endl;
0163   cout << endl;
0164   cout << "Precision : " << endl;
0165   cout << '\t' << setw(2) << nbit_phi << " bits are used for phi " << endl;
0166   cout << '\t' << setw(2) << nbit_phib << " bits are used for phib " << endl;
0167
0168   // loop over all phi-assignment methods
0169   for (int idx = 0; idx < 2; idx++) {
0170     cout << endl;
0171     if (idx == 0)
0172       cout << "Phi-Assignment Method : "
0173            << "PHI12" << endl;
0174     if (idx == 1)
0175       cout << "Phi-Assignment Method : "
0176            << "PHI42" << endl;
0177     cout << "=============================" << endl;
0178     cout << endl;
0179
0180     cout << "      address";
0181     for (int i = 0; i < nbit_phib; i++)
0182       cout << ' ';
0183     cout << "    value" << endl;
0184     for (int i = 0; i < nbit_phi + nbit_phib; i++)
0185       cout << '-';
0186     cout << "----------------------" << endl;
0187
0188     LUT::const_iterator iter = phi_lut[idx].begin();
0189     while (iter != phi_lut[idx].end()) {
0190       int address = (*iter).first;
0191       int value = (*iter).second;
0192
0193       DTTFBitArray<10> b_address(static_cast<unsigned>(abs(address)));
0194       DTTFBitArray<12> b_value(static_cast<unsigned>(abs(value)));
0195
0196       if (address < 0)
0197         b_address.twoComplement();
0198       if (value < 0)
0199         b_value.twoComplement();
0200
0201       cout.setf(ios::right, ios::adjustfield);
0202       cout << " " << setbase(10) << setw(5) << address << " (";
0203       for (int i = nbit_phib - 1; i >= 0; i--)
0204         cout << b_address[i];
0205       cout << ")   " << setw(5) << value << " (";
0206       for (int i = nbit_phi - 1; i >= 0; i--)
0207         cout << b_value[i];
0208       cout << ")  " << endl;
0209
0210       iter++;
0211     }
0212   }
0213
0214   cout << endl;
0215 }
0216
0217 //
0218 // get delta-phi value for a given address
0219 //
0220 int L1MuDTPhiLut::getDeltaPhi(int idx, int address) const {
0221   LUT::const_iterator iter = phi_lut[idx].find(address);
0222   if (iter != phi_lut[idx].end()) {
0223     return (*iter).second;
0224   } else {
0225     cerr << "PhiLut::getDeltaPhi : can not find address " << address << endl;
0226     return 0;
0227   }
0228 }
0229
0230 //
0231 // set precision for look-up tables
0232 //
0233 void L1MuDTPhiLut::setPrecision() {
0234   nbit_phi = 12;
0235   nbit_phib = 10;
0236 }
0237
0238 //
0239 // get precision for look-up tables
0240 //
0241 pair<unsigned short, unsigned short> L1MuDTPhiLut::getPrecision() const {
0242   return pair<unsigned short, unsigned short>(nbit_phi, nbit_phib);
0243 }