1 | // |
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2 | // C++ Implementation: STCalTsys |
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3 | // |
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4 | // Description: |
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5 | // |
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6 | // |
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7 | // Author: Takeshi Nakazato <takeshi.nakazato@nao.ac.jp> (C) 2012 |
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8 | // |
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9 | // Copyright: See COPYING file that comes with this distribution |
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10 | // |
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11 | // |
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12 | |
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13 | #include <vector> |
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14 | |
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15 | #include <casa/Arrays/ArrayMath.h> |
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16 | #include <casa/Logging/LogIO.h> |
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17 | |
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18 | #include "STSelector.h" |
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19 | #include "STCalTsys.h" |
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20 | #include "RowAccumulator.h" |
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21 | #include "STIdxIter.h" |
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22 | #include "STDefs.h" |
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23 | #include <atnf/PKSIO/SrcType.h> |
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24 | |
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25 | using namespace std; |
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26 | using namespace casa; |
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27 | |
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28 | namespace asap { |
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29 | STCalTsys::STCalTsys(CountedPtr<Scantable> &s, vector<int> &iflist) |
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30 | : STCalibration(s), |
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31 | iflist_(iflist) |
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32 | { |
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33 | applytable_ = new STCalTsysTable(*s); |
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34 | } |
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35 | |
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36 | void STCalTsys::setupSelector(const STSelector &sel) |
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37 | { |
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38 | sel_ = sel; |
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39 | vector<int> ifnos = sel_.getIFs(); |
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40 | if (ifnos.size() > 0) { |
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41 | int nif = 0; |
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42 | int nifOrg = iflist_.size(); |
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43 | vector<int> iflistNew(iflist_); |
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44 | for (int i = 0; i < nifOrg; i++) { |
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45 | if (find(ifnos.begin(), ifnos.end(), iflist_[i]) != ifnos.end()) { |
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46 | iflistNew[nif] = iflist_[i]; |
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47 | ++nif; |
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48 | } |
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49 | } |
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50 | if (nif == 0) { |
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51 | LogIO os(LogOrigin("STCalTsys", "setupSelector", WHERE)); |
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52 | os << LogIO::SEVERE << "Selection contains no data." << LogIO::EXCEPTION; |
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53 | } |
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54 | sel_.setIFs(iflistNew); |
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55 | } |
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56 | else { |
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57 | sel_.setIFs(iflist_); |
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58 | } |
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59 | } |
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60 | |
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61 | void STCalTsys::fillCalTable() |
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62 | { |
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63 | RowAccumulator acc(W_TINT); |
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64 | |
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65 | vector<string> cols(3); |
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66 | cols[0] = "IFNO"; |
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67 | cols[1] = "POLNO"; |
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68 | cols[2] = "BEAMNO"; |
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69 | STIdxIterAcc iter(scantable_, cols); |
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70 | |
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71 | ROScalarColumn<Double> *tcol = new ROScalarColumn<Double>(scantable_->table(), "TIME"); |
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72 | Vector<Double> timeSec = tcol->getColumn() * 86400.0; |
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73 | tcol->attach(scantable_->table(), "INTERVAL"); |
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74 | Vector<Double> intervalSec = tcol->getColumn(); |
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75 | delete tcol; |
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76 | ROScalarColumn<Float> *ecol = new ROScalarColumn<Float>(scantable_->table(), "ELEVATION"); |
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77 | Vector<Float> elevation = ecol->getColumn(); |
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78 | delete ecol; |
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79 | |
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80 | ROArrayColumn<Float> specCol(scantable_->table(), "TSYS"); |
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81 | ROArrayColumn<uChar> flagCol(scantable_->table(), "FLAGTRA"); |
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82 | ROScalarColumn<uInt> freqidCol(scantable_->table(), "FREQ_ID"); |
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83 | |
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84 | // dummy Tsys: the following process doesn't need Tsys but RowAccumulator |
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85 | // requires to set it with spectral data |
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86 | Vector<Float> tsys(1, 1.0); |
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87 | |
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88 | Double timeCen = 0.0; |
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89 | Float elCen = 0.0; |
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90 | uInt count = 0; |
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91 | |
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92 | while(!iter.pastEnd()) { |
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93 | Vector<uInt> rows = iter.getRows(SHARE); |
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94 | Vector<uInt> current = iter.current(); |
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95 | //os_ << "current=" << current << LogIO::POST; |
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96 | uInt len = rows.nelements(); |
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97 | if (len == 0) { |
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98 | iter.next(); |
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99 | continue; |
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100 | } |
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101 | else if (len == 1) { |
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102 | STCalTsysTable *p = dynamic_cast<STCalTsysTable *>(&(*applytable_)); |
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103 | uInt irow = rows[0]; |
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104 | p->appenddata(0, 0, current[2], current[0], current[1], |
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105 | freqidCol(irow), timeSec[irow], elevation[irow], specCol(irow)); |
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106 | iter.next(); |
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107 | continue; |
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108 | } |
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109 | |
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110 | uInt nchan = scantable_->nchan(scantable_->getIF(rows[0])); |
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111 | Vector<uChar> flag(nchan); |
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112 | Vector<Bool> bflag(nchan); |
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113 | Vector<Float> spec(nchan); |
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114 | |
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115 | Vector<Double> timeSep(len); |
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116 | for (uInt i = 0; i < len-1; i++) { |
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117 | timeSep[i] = timeSec[rows[i+1]] - timeSec[rows[i]] ; |
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118 | } |
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119 | Double tMedian = median(timeSep(IPosition(1,0), IPosition(1,len-2))); |
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120 | timeSep[len-1] = tMedian * 10000.0 ; // any large value |
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121 | |
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122 | uInt irow ; |
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123 | uInt jrow ; |
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124 | for (uInt i = 0; i < len; i++) { |
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125 | //os_ << "start row " << rows[i] << LogIO::POST; |
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126 | irow = rows[i]; |
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127 | jrow = (i < len-1) ? rows[i+1] : rows[i]; |
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128 | // accumulate data |
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129 | flagCol.get(irow, flag); |
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130 | convertArray(bflag, flag); |
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131 | specCol.get(irow, spec); |
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132 | if ( !allEQ(bflag,True) ) |
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133 | acc.add( spec, !bflag, tsys, intervalSec[irow], timeSec[irow] ) ; |
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134 | timeCen += timeSec[irow]; |
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135 | elCen += elevation[irow]; |
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136 | count++; |
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137 | |
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138 | // check time gap |
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139 | double gap = 2.0 * timeSep[i] / (intervalSec[jrow] + intervalSec[irow]); |
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140 | if ( gap > 5.0 ) { |
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141 | if ( acc.state() ) { |
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142 | acc.replaceNaN() ; |
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143 | // const Vector<Bool> &msk = acc.getMask(); |
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144 | // convertArray(flag, !msk); |
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145 | // for (uInt k = 0; k < nchan; ++k) { |
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146 | // uChar userFlag = 1 << 7; |
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147 | // if (msk[k]==True) userFlag = 0 << 7; |
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148 | // flag(k) = userFlag; |
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149 | // } |
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150 | timeCen /= (Double)count * 86400.0; // sec->day |
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151 | elCen /= (Float)count; |
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152 | STCalTsysTable *p = dynamic_cast<STCalTsysTable *>(&(*applytable_)); |
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153 | p->appenddata(0, 0, current[2], current[0], current[1], |
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154 | freqidCol(irow), timeCen, elCen, acc.getSpectrum()); |
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155 | } |
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156 | acc.reset() ; |
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157 | timeCen = 0.0; |
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158 | elCen = 0.0; |
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159 | count = 0; |
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160 | } |
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161 | } |
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162 | |
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163 | iter.next() ; |
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164 | //os_ << "end " << current << LogIO::POST; |
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165 | } |
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166 | } |
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167 | |
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168 | } |
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