1 | #include <vector> |
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2 | |
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3 | #include <casa/Arrays/Vector.h> |
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4 | #include <casa/BasicSL/String.h> |
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5 | #include <casa/Utilities/CountedPtr.h> |
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6 | |
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7 | #include "Scantable.h" |
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8 | #include "STTcal.h" |
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9 | #include "STIdxIter.h" |
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10 | #include "STSelector.h" |
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11 | |
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12 | using namespace casa; |
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13 | using namespace asap; |
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14 | |
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15 | namespace { |
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16 | // Iteration Helper |
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17 | |
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18 | // template<class T> |
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19 | // class IterationHelper |
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20 | // { |
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21 | // public: |
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22 | // static void Iterate(T &calibrator) |
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23 | // { |
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24 | // vector<string> cols( 3 ) ; |
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25 | // cols[0] = "BEAMNO" ; |
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26 | // cols[1] = "POLNO" ; |
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27 | // cols[2] = "IFNO" ; |
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28 | // STIdxIter2 calibrator.GetIterator(cols);//iter( out, cols ) ; |
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29 | // STSelector sel ; |
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30 | // while ( !iter.pastEnd() ) { |
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31 | // Record ids = iter.currentValue() ; |
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32 | // stringstream ss ; |
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33 | // ss << "SELECT FROM $1 WHERE " |
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34 | // << "BEAMNO==" << ids.asuInt(cols[0]) << "&&" |
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35 | // << "POLNO==" << ids.asuInt(cols[1]) << "&&" |
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36 | // << "IFNO==" << ids.asuInt(cols[2]) ; |
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37 | // //cout << "TaQL string: " << ss.str() << endl ; |
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38 | // sel.setTaQL( ss.str() ) ; |
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39 | // Vector<uInt> rows = iter.getRows( SHARE ) ; |
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40 | // calibrator.Calibrate(sel, rows); |
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41 | // aoff->setSelection( sel ) ; |
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42 | // // out should be an exact copy of s except that SPECTRA column is empty |
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43 | // calibrateALMA( out, s, aoff, rows ) ; |
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44 | // aoff->unsetSelection() ; |
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45 | // sel.reset() ; |
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46 | // iter.next() ; |
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47 | // } |
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48 | // } |
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49 | // }; |
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50 | |
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51 | // Interpolation Helper |
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52 | class TcalData |
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53 | { |
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54 | public: |
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55 | TcalData(CountedPtr<Scantable> s) |
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56 | : table_(s) |
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57 | {} |
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58 | ~TcalData() {} |
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59 | const String method_name() const {return "getTcalFromTime";} |
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60 | uInt nrow() const {return table_->nrow();} |
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61 | Vector<Float> GetEntry(int idx) const |
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62 | { |
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63 | String time; |
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64 | uInt tcalid = table_->getTcalId(idx); |
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65 | Vector<Float> return_value; |
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66 | table_->tcal().getEntry(time, return_value, tcalid); |
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67 | return return_value; |
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68 | } |
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69 | private: |
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70 | CountedPtr<Scantable> table_; |
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71 | }; |
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72 | |
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73 | class TsysData |
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74 | { |
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75 | public: |
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76 | TsysData(CountedPtr<Scantable> s) |
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77 | : tsyscolumn_(s->table(), "TSYS") |
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78 | {} |
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79 | ~TsysData() {} |
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80 | const String method_name() const {return "getTsysFromTime";} |
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81 | uInt nrow() const {return tsyscolumn_.nrow();} |
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82 | Vector<Float> GetEntry(int idx) const |
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83 | { |
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84 | return tsyscolumn_(idx); |
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85 | } |
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86 | private: |
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87 | ROArrayColumn<Float> tsyscolumn_; |
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88 | }; |
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89 | |
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90 | class SpectralData |
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91 | { |
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92 | public: |
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93 | SpectralData(Matrix<Float> s) |
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94 | : data_(s) |
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95 | {} |
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96 | ~SpectralData() {} |
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97 | const String method_name() const {return "getSpectraFromTime";} |
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98 | uInt nrow() const {return data_.ncolumn();} |
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99 | Vector<Float> GetEntry(int idx) const |
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100 | { |
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101 | return data_.column(idx); |
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102 | } |
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103 | private: |
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104 | Matrix<Float> data_; |
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105 | }; |
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106 | |
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107 | |
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108 | vector<int> getRowIdFromTime(double reftime, const Vector<Double> &t) |
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109 | { |
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110 | // double reft = reftime ; |
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111 | double dtmin = 1.0e100 ; |
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112 | double dtmax = -1.0e100 ; |
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113 | // vector<double> dt ; |
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114 | int just_before = -1 ; |
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115 | int just_after = -1 ; |
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116 | Vector<Double> dt = t - reftime ; |
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117 | for ( unsigned int i = 0 ; i < dt.size() ; i++ ) { |
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118 | if ( dt[i] > 0.0 ) { |
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119 | // after reftime |
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120 | if ( dt[i] < dtmin ) { |
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121 | just_after = i ; |
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122 | dtmin = dt[i] ; |
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123 | } |
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124 | } |
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125 | else if ( dt[i] < 0.0 ) { |
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126 | // before reftime |
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127 | if ( dt[i] > dtmax ) { |
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128 | just_before = i ; |
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129 | dtmax = dt[i] ; |
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130 | } |
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131 | } |
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132 | else { |
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133 | // just a reftime |
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134 | just_before = i ; |
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135 | just_after = i ; |
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136 | dtmax = 0 ; |
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137 | dtmin = 0 ; |
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138 | break ; |
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139 | } |
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140 | } |
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141 | |
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142 | vector<int> v(2) ; |
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143 | v[0] = just_before ; |
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144 | v[1] = just_after ; |
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145 | |
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146 | return v ; |
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147 | } |
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148 | |
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149 | template<class T> |
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150 | class SimpleInterpolationHelper |
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151 | { |
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152 | public: |
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153 | static Vector<Float> GetFromTime(double reftime, |
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154 | const Vector<Double> &timeVec, |
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155 | const vector<int> &idx, |
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156 | const T &data, |
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157 | const string mode) |
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158 | { |
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159 | Vector<Float> return_value; |
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160 | LogIO os_; |
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161 | LogIO os( LogOrigin( "STMath", data.method_name(), WHERE ) ) ; |
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162 | if ( data.nrow() == 0 ) { |
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163 | os << LogIO::SEVERE << "No row in the input scantable. Return empty tcal." << LogIO::POST ; |
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164 | } |
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165 | else if ( data.nrow() == 1 ) { |
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166 | return_value = data.GetEntry(0); |
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167 | } |
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168 | else { |
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169 | if ( mode == "before" ) { |
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170 | int id = -1 ; |
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171 | if ( idx[0] != -1 ) { |
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172 | id = idx[0] ; |
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173 | } |
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174 | else if ( idx[1] != -1 ) { |
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175 | os << LogIO::WARN << "Failed to find a scan before reftime. return a spectrum just after the reftime." << LogIO::POST ; |
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176 | id = idx[1] ; |
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177 | } |
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178 | |
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179 | return_value = data.GetEntry(id); |
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180 | } |
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181 | else if ( mode == "after" ) { |
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182 | int id = -1 ; |
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183 | if ( idx[1] != -1 ) { |
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184 | id = idx[1] ; |
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185 | } |
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186 | else if ( idx[0] != -1 ) { |
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187 | os << LogIO::WARN << "Failed to find a scan after reftime. return a spectrum just before the reftime." << LogIO::POST ; |
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188 | id = idx[1] ; |
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189 | } |
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190 | |
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191 | return_value = data.GetEntry(id); |
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192 | } |
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193 | else if ( mode == "nearest" ) { |
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194 | int id = -1 ; |
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195 | if ( idx[0] == -1 ) { |
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196 | id = idx[1] ; |
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197 | } |
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198 | else if ( idx[1] == -1 ) { |
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199 | id = idx[0] ; |
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200 | } |
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201 | else if ( idx[0] == idx[1] ) { |
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202 | id = idx[0] ; |
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203 | } |
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204 | else { |
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205 | double t0 = timeVec[idx[0]] ; |
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206 | double t1 = timeVec[idx[1]] ; |
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207 | if ( abs( t0 - reftime ) > abs( t1 - reftime ) ) { |
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208 | id = idx[1] ; |
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209 | } |
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210 | else { |
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211 | id = idx[0] ; |
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212 | } |
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213 | } |
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214 | return_value = data.GetEntry(id); |
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215 | } |
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216 | else if ( mode == "linear" ) { |
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217 | if ( idx[0] == -1 ) { |
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218 | // use after |
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219 | os << LogIO::WARN << "Failed to interpolate. return a spectrum just after the reftime." << LogIO::POST ; |
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220 | int id = idx[1] ; |
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221 | return_value = data.GetEntry(id); |
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222 | } |
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223 | else if ( idx[1] == -1 ) { |
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224 | // use before |
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225 | os << LogIO::WARN << "Failed to interpolate. return a spectrum just before the reftime." << LogIO::POST ; |
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226 | int id = idx[0] ; |
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227 | return_value = data.GetEntry(id); |
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228 | } |
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229 | else if ( idx[0] == idx[1] ) { |
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230 | // use before |
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231 | //os << "No need to interporate." << LogIO::POST ; |
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232 | int id = idx[0] ; |
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233 | return_value = data.GetEntry(id); |
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234 | } |
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235 | else { |
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236 | // do interpolation |
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237 | |
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238 | double t0 = timeVec[idx[0]] ; |
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239 | double t1 = timeVec[idx[1]] ; |
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240 | Vector<Float> value0 = data.GetEntry(idx[0]); |
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241 | Vector<Float> value1 = data.GetEntry(idx[1]); |
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242 | double tfactor = (reftime - t0) / (t1 - t0) ; |
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243 | for ( unsigned int i = 0 ; i < value0.size() ; i++ ) { |
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244 | value1[i] = ( value1[i] - value0[i] ) * tfactor + value0[i] ; |
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245 | } |
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246 | return_value = value1; |
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247 | } |
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248 | } |
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249 | else { |
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250 | os << LogIO::SEVERE << "Unknown mode" << LogIO::POST ; |
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251 | } |
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252 | } |
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253 | return return_value ; |
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254 | } |
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255 | }; |
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256 | |
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257 | |
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258 | } // anonymous namespace |
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