1 | // |
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2 | // C++ Implementation: STMath |
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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: Malte Marquarding <asap@atnf.csiro.au>, (C) 2006 |
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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 <casa/iomanip.h> |
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14 | #include <casa/Exceptions/Error.h> |
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15 | #include <casa/Containers/Block.h> |
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16 | #include <casa/BasicSL/String.h> |
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17 | #include <casa/Arrays/MaskArrLogi.h> |
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18 | #include <casa/Arrays/MaskArrMath.h> |
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19 | #include <casa/Arrays/ArrayLogical.h> |
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20 | #include <casa/Arrays/ArrayMath.h> |
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21 | #include <casa/Arrays/Slice.h> |
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22 | #include <casa/Arrays/Slicer.h> |
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23 | #include <casa/Containers/RecordField.h> |
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24 | #include <tables/Tables/TableRow.h> |
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25 | #include <tables/Tables/TableVector.h> |
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26 | #include <tables/Tables/TabVecMath.h> |
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27 | #include <tables/Tables/ExprNode.h> |
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28 | #include <tables/Tables/TableRecord.h> |
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29 | #include <tables/Tables/TableParse.h> |
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30 | #include <tables/Tables/ReadAsciiTable.h> |
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31 | #include <tables/Tables/TableIter.h> |
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32 | #include <tables/Tables/TableCopy.h> |
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33 | #include <scimath/Mathematics/FFTServer.h> |
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34 | |
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35 | #include <lattices/Lattices/LatticeUtilities.h> |
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36 | |
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37 | #include <coordinates/Coordinates/SpectralCoordinate.h> |
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38 | #include <coordinates/Coordinates/CoordinateSystem.h> |
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39 | #include <coordinates/Coordinates/CoordinateUtil.h> |
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40 | #include <coordinates/Coordinates/FrequencyAligner.h> |
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41 | |
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42 | #include <scimath/Mathematics/VectorKernel.h> |
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43 | #include <scimath/Mathematics/Convolver.h> |
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44 | #include <scimath/Functionals/Polynomial.h> |
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45 | |
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46 | #include "MathUtils.h" |
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47 | #include "RowAccumulator.h" |
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48 | #include "STAttr.h" |
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49 | #include "STMath.h" |
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50 | #include "STSelector.h" |
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51 | |
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52 | using namespace casa; |
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53 | |
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54 | using namespace asap; |
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55 | |
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56 | // tolerance for direction comparison (rad) |
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57 | Double tol = 1.0e-15 ; |
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58 | //Double tol = 1.0 ; |
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59 | |
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60 | STMath::STMath(bool insitu) : |
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61 | insitu_(insitu) |
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62 | { |
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63 | } |
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64 | |
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65 | |
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66 | STMath::~STMath() |
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67 | { |
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68 | } |
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69 | |
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70 | CountedPtr<Scantable> |
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71 | STMath::average( const std::vector<CountedPtr<Scantable> >& in, |
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72 | const std::vector<bool>& mask, |
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73 | const std::string& weight, |
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74 | const std::string& avmode) |
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75 | { |
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76 | if ( avmode == "SCAN" && in.size() != 1 ) |
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77 | throw(AipsError("Can't perform 'SCAN' averaging on multiple tables.\n" |
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78 | "Use merge first.")); |
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79 | WeightType wtype = stringToWeight(weight); |
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80 | |
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81 | // check if OTF observation |
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82 | String obstype = in[0]->getHeader().obstype ; |
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83 | bool otfscan = false ; |
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84 | if ( obstype.find( "OTF" ) != String::npos ) { |
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85 | //cout << "OTF scan" << endl ; |
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86 | otfscan = true ; |
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87 | } |
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88 | |
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89 | // output |
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90 | // clone as this is non insitu |
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91 | bool insitu = insitu_; |
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92 | setInsitu(false); |
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93 | CountedPtr< Scantable > out = getScantable(in[0], true); |
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94 | setInsitu(insitu); |
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95 | std::vector<CountedPtr<Scantable> >::const_iterator stit = in.begin(); |
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96 | ++stit; |
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97 | while ( stit != in.end() ) { |
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98 | out->appendToHistoryTable((*stit)->history()); |
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99 | ++stit; |
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100 | } |
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101 | |
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102 | Table& tout = out->table(); |
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103 | |
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104 | /// @todo check if all scantables are conformant |
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105 | |
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106 | ArrayColumn<Float> specColOut(tout,"SPECTRA"); |
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107 | ArrayColumn<uChar> flagColOut(tout,"FLAGTRA"); |
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108 | ArrayColumn<Float> tsysColOut(tout,"TSYS"); |
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109 | ScalarColumn<Double> mjdColOut(tout,"TIME"); |
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110 | ScalarColumn<Double> intColOut(tout,"INTERVAL"); |
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111 | ScalarColumn<uInt> cycColOut(tout,"CYCLENO"); |
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112 | ScalarColumn<uInt> scanColOut(tout,"SCANNO"); |
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113 | |
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114 | // set up the output table rows. These are based on the structure of the |
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115 | // FIRST scantable in the vector |
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116 | const Table& baset = in[0]->table(); |
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117 | |
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118 | Block<String> cols(3); |
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119 | cols[0] = String("BEAMNO"); |
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120 | cols[1] = String("IFNO"); |
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121 | cols[2] = String("POLNO"); |
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122 | if ( avmode == "SOURCE" ) { |
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123 | cols.resize(4); |
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124 | cols[3] = String("SRCNAME"); |
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125 | } |
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126 | if ( avmode == "SCAN" && in.size() == 1) { |
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127 | //cols.resize(4); |
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128 | //cols[3] = String("SCANNO"); |
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129 | cols.resize(5); |
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130 | cols[3] = String("SRCNAME"); |
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131 | cols[4] = String("SCANNO"); |
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132 | } |
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133 | uInt outrowCount = 0; |
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134 | TableIterator iter(baset, cols); |
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135 | // int count = 0 ; |
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136 | while (!iter.pastEnd()) { |
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137 | Table subt = iter.table(); |
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138 | // // copy the first row of this selection into the new table |
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139 | // tout.addRow(); |
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140 | // TableCopy::copyRows(tout, subt, outrowCount, 0, 1); |
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141 | // // re-index to 0 |
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142 | // if ( avmode != "SCAN" && avmode != "SOURCE" ) { |
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143 | // scanColOut.put(outrowCount, uInt(0)); |
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144 | // } |
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145 | // ++outrowCount; |
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146 | if ( otfscan ) { |
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147 | MDirection::ScalarColumn dircol ; |
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148 | dircol.attach( subt, "DIRECTION" ) ; |
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149 | Int length = subt.nrow() ; |
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150 | vector< Vector<Double> > dirs ; |
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151 | vector<int> indexes ; |
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152 | for ( Int i = 0 ; i < length ; i++ ) { |
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153 | Vector<Double> t = dircol(i).getAngle(Unit(String("rad"))).getValue() ; |
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154 | //cout << setw( 3 ) << count++ << ": " ; |
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155 | //cout << "[" << t[0] << "," << t[1] << "]" << endl ; |
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156 | bool adddir = true ; |
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157 | for ( uInt j = 0 ; j < dirs.size() ; j++ ) { |
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158 | //if ( allTrue( t == dirs[j] ) ) { |
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159 | if ( allNearAbs( t, dirs[j], tol ) ) { |
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160 | adddir = false ; |
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161 | break ; |
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162 | } |
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163 | } |
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164 | if ( adddir ) { |
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165 | dirs.push_back( t ) ; |
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166 | indexes.push_back( i ) ; |
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167 | } |
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168 | } |
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169 | uInt rowNum = dirs.size() ; |
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170 | //cout << "dirs.size()=" << dirs.size() << endl ; |
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171 | tout.addRow( rowNum ) ; |
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172 | for ( uInt i = 0 ; i < rowNum ; i++ ) { |
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173 | TableCopy::copyRows( tout, subt, outrowCount+i, indexes[i], 1 ) ; |
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174 | // re-index to 0 |
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175 | if ( avmode != "SCAN" && avmode != "SOURCE" ) { |
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176 | scanColOut.put(outrowCount+i, uInt(0)); |
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177 | } |
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178 | } |
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179 | outrowCount += rowNum ; |
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180 | } |
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181 | else { |
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182 | // copy the first row of this selection into the new table |
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183 | tout.addRow(); |
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184 | TableCopy::copyRows(tout, subt, outrowCount, 0, 1); |
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185 | // re-index to 0 |
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186 | if ( avmode != "SCAN" && avmode != "SOURCE" ) { |
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187 | scanColOut.put(outrowCount, uInt(0)); |
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188 | } |
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189 | ++outrowCount; |
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190 | } |
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191 | ++iter; |
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192 | } |
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193 | RowAccumulator acc(wtype); |
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194 | Vector<Bool> cmask(mask); |
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195 | acc.setUserMask(cmask); |
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196 | ROTableRow row(tout); |
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197 | ROArrayColumn<Float> specCol, tsysCol; |
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198 | ROArrayColumn<uChar> flagCol; |
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199 | ROScalarColumn<Double> mjdCol, intCol; |
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200 | ROScalarColumn<Int> scanIDCol; |
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201 | |
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202 | Vector<uInt> rowstodelete; |
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203 | |
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204 | for (uInt i=0; i < tout.nrow(); ++i) { |
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205 | for ( int j=0; j < int(in.size()); ++j ) { |
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206 | const Table& tin = in[j]->table(); |
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207 | const TableRecord& rec = row.get(i); |
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208 | ROScalarColumn<Double> tmp(tin, "TIME"); |
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209 | Double td;tmp.get(0,td); |
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210 | Table basesubt = tin(tin.col("BEAMNO") == Int(rec.asuInt("BEAMNO")) |
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211 | && tin.col("IFNO") == Int(rec.asuInt("IFNO")) |
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212 | && tin.col("POLNO") == Int(rec.asuInt("POLNO")) ); |
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213 | Table subt; |
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214 | if ( avmode == "SOURCE") { |
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215 | subt = basesubt( basesubt.col("SRCNAME") == rec.asString("SRCNAME") ); |
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216 | } else if (avmode == "SCAN") { |
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217 | //subt = basesubt( basesubt.col("SCANNO") == Int(rec.asuInt("SCANNO")) ); |
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218 | subt = basesubt( basesubt.col("SCANNO") == Int(rec.asuInt("SCANNO")) |
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219 | && basesubt.col("SRCNAME") == rec.asString("SRCNAME") ); |
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220 | } else { |
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221 | subt = basesubt; |
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222 | } |
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223 | // for OTF |
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224 | if ( otfscan ) { |
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225 | vector<uInt> removeRows ; |
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226 | uInt nrsubt = subt.nrow() ; |
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227 | for ( uInt irow = 0 ; irow < nrsubt ; irow++ ) { |
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228 | //if ( !allTrue((subt.col("DIRECTION").getArrayDouble(TableExprId(irow)))==rec.asArrayDouble("DIRECTION")) ) { |
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229 | if ( !allNearAbs((subt.col("DIRECTION").getArrayDouble(TableExprId(irow))), rec.asArrayDouble("DIRECTION"), tol ) ) { |
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230 | removeRows.push_back( irow ) ; |
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231 | } |
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232 | } |
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233 | //cout << "removeRows.size()=" << removeRows.size() << endl ; |
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234 | if ( removeRows.size() != 0 ) { |
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235 | //cout << "[" ; |
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236 | //for ( uInt irow=0 ; irow<removeRows.size()-1 ; irow++ ) |
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237 | //cout << removeRows[irow] << "," ; |
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238 | //cout << removeRows[removeRows.size()-1] << "]" << endl ; |
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239 | subt.removeRow( removeRows ) ; |
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240 | } |
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241 | |
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242 | if ( nrsubt == removeRows.size() ) |
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243 | throw(AipsError("Averaging data is empty.")) ; |
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244 | } |
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245 | specCol.attach(subt,"SPECTRA"); |
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246 | flagCol.attach(subt,"FLAGTRA"); |
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247 | tsysCol.attach(subt,"TSYS"); |
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248 | intCol.attach(subt,"INTERVAL"); |
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249 | mjdCol.attach(subt,"TIME"); |
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250 | Vector<Float> spec,tsys; |
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251 | Vector<uChar> flag; |
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252 | Double inter,time; |
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253 | for (uInt k = 0; k < subt.nrow(); ++k ) { |
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254 | flagCol.get(k, flag); |
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255 | Vector<Bool> bflag(flag.shape()); |
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256 | convertArray(bflag, flag); |
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257 | /* |
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258 | if ( allEQ(bflag, True) ) { |
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259 | continue;//don't accumulate |
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260 | } |
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261 | */ |
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262 | specCol.get(k, spec); |
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263 | tsysCol.get(k, tsys); |
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264 | intCol.get(k, inter); |
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265 | mjdCol.get(k, time); |
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266 | // spectrum has to be added last to enable weighting by the other values |
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267 | acc.add(spec, !bflag, tsys, inter, time); |
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268 | } |
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269 | } |
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270 | const Vector<Bool>& msk = acc.getMask(); |
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271 | if ( allEQ(msk, False) ) { |
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272 | uint n = rowstodelete.nelements(); |
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273 | rowstodelete.resize(n+1, True); |
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274 | rowstodelete[n] = i; |
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275 | continue; |
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276 | } |
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277 | //write out |
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278 | if (acc.state()) { |
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279 | Vector<uChar> flg(msk.shape()); |
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280 | convertArray(flg, !msk); |
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281 | flagColOut.put(i, flg); |
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282 | specColOut.put(i, acc.getSpectrum()); |
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283 | tsysColOut.put(i, acc.getTsys()); |
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284 | intColOut.put(i, acc.getInterval()); |
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285 | mjdColOut.put(i, acc.getTime()); |
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286 | // we should only have one cycle now -> reset it to be 0 |
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287 | // frequency switched data has different CYCLENO for different IFNO |
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288 | // which requires resetting this value |
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289 | cycColOut.put(i, uInt(0)); |
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290 | } else { |
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291 | ostringstream oss; |
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292 | oss << "For output row="<<i<<", all input rows of data are flagged. no averaging" << endl; |
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293 | pushLog(String(oss)); |
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294 | } |
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295 | acc.reset(); |
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296 | } |
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297 | if (rowstodelete.nelements() > 0) { |
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298 | cout << rowstodelete << endl; |
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299 | tout.removeRow(rowstodelete); |
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300 | if (tout.nrow() == 0) { |
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301 | throw(AipsError("Can't average fully flagged data.")); |
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302 | } |
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303 | } |
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304 | return out; |
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305 | } |
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306 | |
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307 | CountedPtr< Scantable > |
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308 | STMath::averageChannel( const CountedPtr < Scantable > & in, |
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309 | const std::string & mode, |
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310 | const std::string& avmode ) |
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311 | { |
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312 | // check if OTF observation |
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313 | String obstype = in->getHeader().obstype ; |
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314 | bool otfscan = false ; |
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315 | if ( obstype.find( "OTF" ) != String::npos ) { |
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316 | //cout << "OTF scan" << endl ; |
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317 | otfscan = true ; |
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318 | } |
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319 | |
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320 | // clone as this is non insitu |
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321 | bool insitu = insitu_; |
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322 | setInsitu(false); |
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323 | CountedPtr< Scantable > out = getScantable(in, true); |
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324 | setInsitu(insitu); |
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325 | Table& tout = out->table(); |
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326 | ArrayColumn<Float> specColOut(tout,"SPECTRA"); |
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327 | ArrayColumn<uChar> flagColOut(tout,"FLAGTRA"); |
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328 | ArrayColumn<Float> tsysColOut(tout,"TSYS"); |
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329 | ScalarColumn<uInt> scanColOut(tout,"SCANNO"); |
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330 | ScalarColumn<Double> intColOut(tout, "INTERVAL"); |
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331 | Table tmp = in->table().sort("BEAMNO"); |
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332 | Block<String> cols(3); |
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333 | cols[0] = String("BEAMNO"); |
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334 | cols[1] = String("IFNO"); |
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335 | cols[2] = String("POLNO"); |
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336 | if ( avmode == "SCAN") { |
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337 | cols.resize(4); |
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338 | cols[3] = String("SCANNO"); |
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339 | } |
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340 | uInt outrowCount = 0; |
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341 | uChar userflag = 1 << 7; |
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342 | TableIterator iter(tmp, cols); |
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343 | while (!iter.pastEnd()) { |
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344 | Table subt = iter.table(); |
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345 | ROArrayColumn<Float> specCol, tsysCol; |
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346 | ROArrayColumn<uChar> flagCol; |
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347 | ROScalarColumn<Double> intCol(subt, "INTERVAL"); |
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348 | specCol.attach(subt,"SPECTRA"); |
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349 | flagCol.attach(subt,"FLAGTRA"); |
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350 | tsysCol.attach(subt,"TSYS"); |
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351 | // tout.addRow(); |
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352 | // TableCopy::copyRows(tout, subt, outrowCount, 0, 1); |
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353 | // if ( avmode != "SCAN") { |
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354 | // scanColOut.put(outrowCount, uInt(0)); |
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355 | // } |
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356 | // Vector<Float> tmp; |
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357 | // specCol.get(0, tmp); |
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358 | // uInt nchan = tmp.nelements(); |
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359 | // // have to do channel by channel here as MaskedArrMath |
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360 | // // doesn't have partialMedians |
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361 | // Vector<uChar> flags = flagCol.getColumn(Slicer(Slice(0))); |
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362 | // Vector<Float> outspec(nchan); |
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363 | // Vector<uChar> outflag(nchan,0); |
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364 | // Vector<Float> outtsys(1);/// @fixme when tsys is channel based |
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365 | // for (uInt i=0; i<nchan; ++i) { |
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366 | // Vector<Float> specs = specCol.getColumn(Slicer(Slice(i))); |
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367 | // MaskedArray<Float> ma = maskedArray(specs,flags); |
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368 | // outspec[i] = median(ma); |
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369 | // if ( allEQ(ma.getMask(), False) ) |
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370 | // outflag[i] = userflag;// flag data |
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371 | // } |
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372 | // outtsys[0] = median(tsysCol.getColumn()); |
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373 | // specColOut.put(outrowCount, outspec); |
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374 | // flagColOut.put(outrowCount, outflag); |
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375 | // tsysColOut.put(outrowCount, outtsys); |
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376 | // Double intsum = sum(intCol.getColumn()); |
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377 | // intColOut.put(outrowCount, intsum); |
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378 | // ++outrowCount; |
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379 | // ++iter; |
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380 | if ( otfscan ) { |
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381 | MDirection::ScalarColumn dircol ; |
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382 | dircol.attach( subt, "DIRECTION" ) ; |
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383 | Int length = subt.nrow() ; |
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384 | vector< Vector<Double> > dirs ; |
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385 | vector<int> indexes ; |
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386 | for ( Int i = 0 ; i < length ; i++ ) { |
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387 | Vector<Double> t = dircol(i).getAngle(Unit(String("rad"))).getValue() ; |
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388 | bool adddir = true ; |
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389 | for ( uInt j = 0 ; j < dirs.size() ; j++ ) { |
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390 | //if ( allTrue( t == dirs[j] ) ) { |
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391 | if ( allNearAbs( t, dirs[j], tol ) ) { |
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392 | adddir = false ; |
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393 | break ; |
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394 | } |
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395 | } |
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396 | if ( adddir ) { |
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397 | dirs.push_back( t ) ; |
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398 | indexes.push_back( i ) ; |
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399 | } |
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400 | } |
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401 | uInt rowNum = dirs.size() ; |
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402 | tout.addRow( rowNum ); |
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403 | for ( uInt i = 0 ; i < rowNum ; i++ ) { |
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404 | TableCopy::copyRows(tout, subt, outrowCount+i, indexes[i], 1) ; |
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405 | if ( avmode != "SCAN") { |
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406 | //scanColOut.put(outrowCount+i, uInt(0)); |
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407 | } |
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408 | } |
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409 | MDirection::ScalarColumn dircolOut ; |
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410 | dircolOut.attach( tout, "DIRECTION" ) ; |
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411 | for ( uInt irow = 0 ; irow < rowNum ; irow++ ) { |
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412 | Vector<Double> t = dircolOut(outrowCount+irow).getAngle(Unit(String("rad"))).getValue() ; |
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413 | Vector<Float> tmp; |
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414 | specCol.get(0, tmp); |
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415 | uInt nchan = tmp.nelements(); |
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416 | // have to do channel by channel here as MaskedArrMath |
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417 | // doesn't have partialMedians |
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418 | Vector<uChar> flags = flagCol.getColumn(Slicer(Slice(0))); |
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419 | // mask spectra for different DIRECTION |
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420 | //cout << "irow=" << outrowCount+irow << ": flagged [" ; |
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421 | for ( uInt jrow = 0 ; jrow < subt.nrow() ; jrow++ ) { |
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422 | Vector<Double> direction = dircol(jrow).getAngle(Unit(String("rad"))).getValue() ; |
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423 | //if ( t[0] != direction[0] || t[1] != direction[1] ) { |
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424 | if ( !allNearAbs( t, direction, tol ) ) { |
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425 | //cout << jrow << " " ; |
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426 | flags[jrow] = userflag ; |
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427 | } |
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428 | } |
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429 | //cout << "]" << endl ; |
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430 | //cout << "flags=" << flags << endl ; |
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431 | Vector<Float> outspec(nchan); |
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432 | Vector<uChar> outflag(nchan,0); |
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433 | Vector<Float> outtsys(1);/// @fixme when tsys is channel based |
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434 | for (uInt i=0; i<nchan; ++i) { |
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435 | Vector<Float> specs = specCol.getColumn(Slicer(Slice(i))); |
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436 | MaskedArray<Float> ma = maskedArray(specs,flags); |
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437 | outspec[i] = median(ma); |
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438 | if ( allEQ(ma.getMask(), False) ) |
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439 | outflag[i] = userflag;// flag data |
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440 | } |
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441 | outtsys[0] = median(tsysCol.getColumn()); |
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442 | specColOut.put(outrowCount+irow, outspec); |
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443 | flagColOut.put(outrowCount+irow, outflag); |
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444 | tsysColOut.put(outrowCount+irow, outtsys); |
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445 | Vector<Double> integ = intCol.getColumn() ; |
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446 | MaskedArray<Double> mi = maskedArray( integ, flags ) ; |
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447 | Double intsum = sum(mi); |
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448 | intColOut.put(outrowCount+irow, intsum); |
---|
449 | } |
---|
450 | outrowCount += rowNum ; |
---|
451 | } |
---|
452 | else { |
---|
453 | tout.addRow(); |
---|
454 | TableCopy::copyRows(tout, subt, outrowCount, 0, 1); |
---|
455 | if ( avmode != "SCAN") { |
---|
456 | scanColOut.put(outrowCount, uInt(0)); |
---|
457 | } |
---|
458 | Vector<Float> tmp; |
---|
459 | specCol.get(0, tmp); |
---|
460 | uInt nchan = tmp.nelements(); |
---|
461 | // have to do channel by channel here as MaskedArrMath |
---|
462 | // doesn't have partialMedians |
---|
463 | Vector<uChar> flags = flagCol.getColumn(Slicer(Slice(0))); |
---|
464 | Vector<Float> outspec(nchan); |
---|
465 | Vector<uChar> outflag(nchan,0); |
---|
466 | Vector<Float> outtsys(1);/// @fixme when tsys is channel based |
---|
467 | for (uInt i=0; i<nchan; ++i) { |
---|
468 | Vector<Float> specs = specCol.getColumn(Slicer(Slice(i))); |
---|
469 | MaskedArray<Float> ma = maskedArray(specs,flags); |
---|
470 | outspec[i] = median(ma); |
---|
471 | if ( allEQ(ma.getMask(), False) ) |
---|
472 | outflag[i] = userflag;// flag data |
---|
473 | } |
---|
474 | outtsys[0] = median(tsysCol.getColumn()); |
---|
475 | specColOut.put(outrowCount, outspec); |
---|
476 | flagColOut.put(outrowCount, outflag); |
---|
477 | tsysColOut.put(outrowCount, outtsys); |
---|
478 | Double intsum = sum(intCol.getColumn()); |
---|
479 | intColOut.put(outrowCount, intsum); |
---|
480 | ++outrowCount; |
---|
481 | } |
---|
482 | ++iter; |
---|
483 | } |
---|
484 | return out; |
---|
485 | } |
---|
486 | |
---|
487 | CountedPtr< Scantable > STMath::getScantable(const CountedPtr< Scantable >& in, |
---|
488 | bool droprows) |
---|
489 | { |
---|
490 | if (insitu_) { |
---|
491 | return in; |
---|
492 | } |
---|
493 | else { |
---|
494 | // clone |
---|
495 | return CountedPtr<Scantable>(new Scantable(*in, Bool(droprows))); |
---|
496 | } |
---|
497 | } |
---|
498 | |
---|
499 | CountedPtr< Scantable > STMath::unaryOperate( const CountedPtr< Scantable >& in, |
---|
500 | float val, |
---|
501 | const std::string& mode, |
---|
502 | bool tsys ) |
---|
503 | { |
---|
504 | CountedPtr< Scantable > out = getScantable(in, false); |
---|
505 | Table& tab = out->table(); |
---|
506 | ArrayColumn<Float> specCol(tab,"SPECTRA"); |
---|
507 | ArrayColumn<Float> tsysCol(tab,"TSYS"); |
---|
508 | for (uInt i=0; i<tab.nrow(); ++i) { |
---|
509 | Vector<Float> spec; |
---|
510 | Vector<Float> ts; |
---|
511 | specCol.get(i, spec); |
---|
512 | tsysCol.get(i, ts); |
---|
513 | if (mode == "MUL" || mode == "DIV") { |
---|
514 | if (mode == "DIV") val = 1.0/val; |
---|
515 | spec *= val; |
---|
516 | specCol.put(i, spec); |
---|
517 | if ( tsys ) { |
---|
518 | ts *= val; |
---|
519 | tsysCol.put(i, ts); |
---|
520 | } |
---|
521 | } else if ( mode == "ADD" || mode == "SUB") { |
---|
522 | if (mode == "SUB") val *= -1.0; |
---|
523 | spec += val; |
---|
524 | specCol.put(i, spec); |
---|
525 | if ( tsys ) { |
---|
526 | ts += val; |
---|
527 | tsysCol.put(i, ts); |
---|
528 | } |
---|
529 | } |
---|
530 | } |
---|
531 | return out; |
---|
532 | } |
---|
533 | |
---|
534 | CountedPtr<Scantable> STMath::binaryOperate(const CountedPtr<Scantable>& left, |
---|
535 | const CountedPtr<Scantable>& right, |
---|
536 | const std::string& mode) |
---|
537 | { |
---|
538 | bool insitu = insitu_; |
---|
539 | if ( ! left->conformant(*right) ) { |
---|
540 | throw(AipsError("'left' and 'right' scantables are not conformant.")); |
---|
541 | } |
---|
542 | setInsitu(false); |
---|
543 | CountedPtr< Scantable > out = getScantable(left, false); |
---|
544 | setInsitu(insitu); |
---|
545 | Table& tout = out->table(); |
---|
546 | Block<String> coln(5); |
---|
547 | coln[0] = "SCANNO"; coln[1] = "CYCLENO"; coln[2] = "BEAMNO"; |
---|
548 | coln[3] = "IFNO"; coln[4] = "POLNO"; |
---|
549 | Table tmpl = tout.sort(coln); |
---|
550 | Table tmpr = right->table().sort(coln); |
---|
551 | ArrayColumn<Float> lspecCol(tmpl,"SPECTRA"); |
---|
552 | ROArrayColumn<Float> rspecCol(tmpr,"SPECTRA"); |
---|
553 | ArrayColumn<uChar> lflagCol(tmpl,"FLAGTRA"); |
---|
554 | ROArrayColumn<uChar> rflagCol(tmpr,"FLAGTRA"); |
---|
555 | |
---|
556 | for (uInt i=0; i<tout.nrow(); ++i) { |
---|
557 | Vector<Float> lspecvec, rspecvec; |
---|
558 | Vector<uChar> lflagvec, rflagvec; |
---|
559 | lspecvec = lspecCol(i); rspecvec = rspecCol(i); |
---|
560 | lflagvec = lflagCol(i); rflagvec = rflagCol(i); |
---|
561 | MaskedArray<Float> mleft = maskedArray(lspecvec, lflagvec); |
---|
562 | MaskedArray<Float> mright = maskedArray(rspecvec, rflagvec); |
---|
563 | if (mode == "ADD") { |
---|
564 | mleft += mright; |
---|
565 | } else if ( mode == "SUB") { |
---|
566 | mleft -= mright; |
---|
567 | } else if ( mode == "MUL") { |
---|
568 | mleft *= mright; |
---|
569 | } else if ( mode == "DIV") { |
---|
570 | mleft /= mright; |
---|
571 | } else { |
---|
572 | throw(AipsError("Illegal binary operator")); |
---|
573 | } |
---|
574 | lspecCol.put(i, mleft.getArray()); |
---|
575 | } |
---|
576 | return out; |
---|
577 | } |
---|
578 | |
---|
579 | |
---|
580 | |
---|
581 | MaskedArray<Float> STMath::maskedArray( const Vector<Float>& s, |
---|
582 | const Vector<uChar>& f) |
---|
583 | { |
---|
584 | Vector<Bool> mask; |
---|
585 | mask.resize(f.shape()); |
---|
586 | convertArray(mask, f); |
---|
587 | return MaskedArray<Float>(s,!mask); |
---|
588 | } |
---|
589 | |
---|
590 | MaskedArray<Double> STMath::maskedArray( const Vector<Double>& s, |
---|
591 | const Vector<uChar>& f) |
---|
592 | { |
---|
593 | Vector<Bool> mask; |
---|
594 | mask.resize(f.shape()); |
---|
595 | convertArray(mask, f); |
---|
596 | return MaskedArray<Double>(s,!mask); |
---|
597 | } |
---|
598 | |
---|
599 | Vector<uChar> STMath::flagsFromMA(const MaskedArray<Float>& ma) |
---|
600 | { |
---|
601 | const Vector<Bool>& m = ma.getMask(); |
---|
602 | Vector<uChar> flags(m.shape()); |
---|
603 | convertArray(flags, !m); |
---|
604 | return flags; |
---|
605 | } |
---|
606 | |
---|
607 | CountedPtr< Scantable > STMath::autoQuotient( const CountedPtr< Scantable >& in, |
---|
608 | const std::string & mode, |
---|
609 | bool preserve ) |
---|
610 | { |
---|
611 | /// @todo make other modes available |
---|
612 | /// modes should be "nearest", "pair" |
---|
613 | // make this operation non insitu |
---|
614 | const Table& tin = in->table(); |
---|
615 | Table ons = tin(tin.col("SRCTYPE") == Int(0)); |
---|
616 | Table offs = tin(tin.col("SRCTYPE") == Int(1)); |
---|
617 | if ( offs.nrow() == 0 ) |
---|
618 | throw(AipsError("No 'off' scans present.")); |
---|
619 | // put all "on" scans into output table |
---|
620 | |
---|
621 | bool insitu = insitu_; |
---|
622 | setInsitu(false); |
---|
623 | CountedPtr< Scantable > out = getScantable(in, true); |
---|
624 | setInsitu(insitu); |
---|
625 | Table& tout = out->table(); |
---|
626 | |
---|
627 | TableCopy::copyRows(tout, ons); |
---|
628 | TableRow row(tout); |
---|
629 | ROScalarColumn<Double> offtimeCol(offs, "TIME"); |
---|
630 | ArrayColumn<Float> outspecCol(tout, "SPECTRA"); |
---|
631 | ROArrayColumn<Float> outtsysCol(tout, "TSYS"); |
---|
632 | ArrayColumn<uChar> outflagCol(tout, "FLAGTRA"); |
---|
633 | for (uInt i=0; i < tout.nrow(); ++i) { |
---|
634 | const TableRecord& rec = row.get(i); |
---|
635 | Double ontime = rec.asDouble("TIME"); |
---|
636 | Table presel = offs(offs.col("BEAMNO") == Int(rec.asuInt("BEAMNO")) |
---|
637 | && offs.col("IFNO") == Int(rec.asuInt("IFNO")) |
---|
638 | && offs.col("POLNO") == Int(rec.asuInt("POLNO")) ); |
---|
639 | ROScalarColumn<Double> offtimeCol(presel, "TIME"); |
---|
640 | |
---|
641 | Double mindeltat = min(abs(offtimeCol.getColumn() - ontime)); |
---|
642 | // Timestamp may vary within a cycle ???!!! |
---|
643 | // increase this by 0.01 sec in case of rounding errors... |
---|
644 | // There might be a better way to do this. |
---|
645 | // fix to this fix. TIME is MJD, so 1.0d not 1.0s |
---|
646 | mindeltat += 0.01/24./60./60.; |
---|
647 | Table sel = presel( abs(presel.col("TIME")-ontime) <= mindeltat); |
---|
648 | |
---|
649 | if ( sel.nrow() < 1 ) { |
---|
650 | throw(AipsError("No closest in time found... This could be a rounding " |
---|
651 | "issue. Try quotient instead.")); |
---|
652 | } |
---|
653 | TableRow offrow(sel); |
---|
654 | const TableRecord& offrec = offrow.get(0);//should only be one row |
---|
655 | RORecordFieldPtr< Array<Float> > specoff(offrec, "SPECTRA"); |
---|
656 | RORecordFieldPtr< Array<Float> > tsysoff(offrec, "TSYS"); |
---|
657 | RORecordFieldPtr< Array<uChar> > flagoff(offrec, "FLAGTRA"); |
---|
658 | /// @fixme this assumes tsys is a scalar not vector |
---|
659 | Float tsysoffscalar = (*tsysoff)(IPosition(1,0)); |
---|
660 | Vector<Float> specon, tsyson; |
---|
661 | outtsysCol.get(i, tsyson); |
---|
662 | outspecCol.get(i, specon); |
---|
663 | Vector<uChar> flagon; |
---|
664 | outflagCol.get(i, flagon); |
---|
665 | MaskedArray<Float> mon = maskedArray(specon, flagon); |
---|
666 | MaskedArray<Float> moff = maskedArray(*specoff, *flagoff); |
---|
667 | MaskedArray<Float> quot = (tsysoffscalar * mon / moff); |
---|
668 | if (preserve) { |
---|
669 | quot -= tsysoffscalar; |
---|
670 | } else { |
---|
671 | quot -= tsyson[0]; |
---|
672 | } |
---|
673 | outspecCol.put(i, quot.getArray()); |
---|
674 | outflagCol.put(i, flagsFromMA(quot)); |
---|
675 | } |
---|
676 | // renumber scanno |
---|
677 | TableIterator it(tout, "SCANNO"); |
---|
678 | uInt i = 0; |
---|
679 | while ( !it.pastEnd() ) { |
---|
680 | Table t = it.table(); |
---|
681 | TableVector<uInt> vec(t, "SCANNO"); |
---|
682 | vec = i; |
---|
683 | ++i; |
---|
684 | ++it; |
---|
685 | } |
---|
686 | return out; |
---|
687 | } |
---|
688 | |
---|
689 | |
---|
690 | CountedPtr< Scantable > STMath::quotient( const CountedPtr< Scantable > & on, |
---|
691 | const CountedPtr< Scantable > & off, |
---|
692 | bool preserve ) |
---|
693 | { |
---|
694 | bool insitu = insitu_; |
---|
695 | if ( ! on->conformant(*off) ) { |
---|
696 | throw(AipsError("'on' and 'off' scantables are not conformant.")); |
---|
697 | } |
---|
698 | setInsitu(false); |
---|
699 | CountedPtr< Scantable > out = getScantable(on, false); |
---|
700 | setInsitu(insitu); |
---|
701 | Table& tout = out->table(); |
---|
702 | const Table& toff = off->table(); |
---|
703 | TableIterator sit(tout, "SCANNO"); |
---|
704 | TableIterator s2it(toff, "SCANNO"); |
---|
705 | while ( !sit.pastEnd() ) { |
---|
706 | Table ton = sit.table(); |
---|
707 | TableRow row(ton); |
---|
708 | Table t = s2it.table(); |
---|
709 | ArrayColumn<Float> outspecCol(ton, "SPECTRA"); |
---|
710 | ROArrayColumn<Float> outtsysCol(ton, "TSYS"); |
---|
711 | ArrayColumn<uChar> outflagCol(ton, "FLAGTRA"); |
---|
712 | for (uInt i=0; i < ton.nrow(); ++i) { |
---|
713 | const TableRecord& rec = row.get(i); |
---|
714 | Table offsel = t( t.col("BEAMNO") == Int(rec.asuInt("BEAMNO")) |
---|
715 | && t.col("IFNO") == Int(rec.asuInt("IFNO")) |
---|
716 | && t.col("POLNO") == Int(rec.asuInt("POLNO")) ); |
---|
717 | if ( offsel.nrow() == 0 ) |
---|
718 | throw AipsError("STMath::quotient: no matching off"); |
---|
719 | TableRow offrow(offsel); |
---|
720 | const TableRecord& offrec = offrow.get(0);//should be ncycles - take first |
---|
721 | RORecordFieldPtr< Array<Float> > specoff(offrec, "SPECTRA"); |
---|
722 | RORecordFieldPtr< Array<Float> > tsysoff(offrec, "TSYS"); |
---|
723 | RORecordFieldPtr< Array<uChar> > flagoff(offrec, "FLAGTRA"); |
---|
724 | Float tsysoffscalar = (*tsysoff)(IPosition(1,0)); |
---|
725 | Vector<Float> specon, tsyson; |
---|
726 | outtsysCol.get(i, tsyson); |
---|
727 | outspecCol.get(i, specon); |
---|
728 | Vector<uChar> flagon; |
---|
729 | outflagCol.get(i, flagon); |
---|
730 | MaskedArray<Float> mon = maskedArray(specon, flagon); |
---|
731 | MaskedArray<Float> moff = maskedArray(*specoff, *flagoff); |
---|
732 | MaskedArray<Float> quot = (tsysoffscalar * mon / moff); |
---|
733 | if (preserve) { |
---|
734 | quot -= tsysoffscalar; |
---|
735 | } else { |
---|
736 | quot -= tsyson[0]; |
---|
737 | } |
---|
738 | outspecCol.put(i, quot.getArray()); |
---|
739 | outflagCol.put(i, flagsFromMA(quot)); |
---|
740 | } |
---|
741 | ++sit; |
---|
742 | ++s2it; |
---|
743 | // take the first off for each on scan which doesn't have a |
---|
744 | // matching off scan |
---|
745 | // non <= noff: matching pairs, non > noff matching pairs then first off |
---|
746 | if ( s2it.pastEnd() ) s2it.reset(); |
---|
747 | } |
---|
748 | return out; |
---|
749 | } |
---|
750 | |
---|
751 | // dototalpower (migration of GBTIDL procedure dototalpower.pro) |
---|
752 | // calibrate the CAL on-off pair. It calculate Tsys and average CAL on-off subintegrations |
---|
753 | // do it for each cycles in a specific scan. |
---|
754 | CountedPtr< Scantable > STMath::dototalpower( const CountedPtr< Scantable >& calon, |
---|
755 | const CountedPtr< Scantable >& caloff, Float tcal ) |
---|
756 | { |
---|
757 | if ( ! calon->conformant(*caloff) ) { |
---|
758 | throw(AipsError("'CAL on' and 'CAL off' scantables are not conformant.")); |
---|
759 | } |
---|
760 | setInsitu(false); |
---|
761 | CountedPtr< Scantable > out = getScantable(caloff, false); |
---|
762 | Table& tout = out->table(); |
---|
763 | const Table& tcon = calon->table(); |
---|
764 | Vector<Float> tcalout; |
---|
765 | Vector<Float> tcalout2; //debug |
---|
766 | |
---|
767 | if ( tout.nrow() != tcon.nrow() ) { |
---|
768 | throw(AipsError("Mismatch in number of rows to form cal on - off pair.")); |
---|
769 | } |
---|
770 | // iteration by scanno or cycle no. |
---|
771 | TableIterator sit(tout, "SCANNO"); |
---|
772 | TableIterator s2it(tcon, "SCANNO"); |
---|
773 | while ( !sit.pastEnd() ) { |
---|
774 | Table toff = sit.table(); |
---|
775 | TableRow row(toff); |
---|
776 | Table t = s2it.table(); |
---|
777 | ScalarColumn<Double> outintCol(toff, "INTERVAL"); |
---|
778 | ArrayColumn<Float> outspecCol(toff, "SPECTRA"); |
---|
779 | ArrayColumn<Float> outtsysCol(toff, "TSYS"); |
---|
780 | ArrayColumn<uChar> outflagCol(toff, "FLAGTRA"); |
---|
781 | ROScalarColumn<uInt> outtcalIdCol(toff, "TCAL_ID"); |
---|
782 | ROScalarColumn<uInt> outpolCol(toff, "POLNO"); |
---|
783 | ROScalarColumn<Double> onintCol(t, "INTERVAL"); |
---|
784 | ROArrayColumn<Float> onspecCol(t, "SPECTRA"); |
---|
785 | ROArrayColumn<Float> ontsysCol(t, "TSYS"); |
---|
786 | ROArrayColumn<uChar> onflagCol(t, "FLAGTRA"); |
---|
787 | //ROScalarColumn<uInt> ontcalIdCol(t, "TCAL_ID"); |
---|
788 | |
---|
789 | for (uInt i=0; i < toff.nrow(); ++i) { |
---|
790 | //skip these checks -> assumes the data order are the same between the cal on off pairs |
---|
791 | // |
---|
792 | Vector<Float> specCalon, specCaloff; |
---|
793 | // to store scalar (mean) tsys |
---|
794 | Vector<Float> tsysout(1); |
---|
795 | uInt tcalId, polno; |
---|
796 | Double offint, onint; |
---|
797 | outpolCol.get(i, polno); |
---|
798 | outspecCol.get(i, specCaloff); |
---|
799 | onspecCol.get(i, specCalon); |
---|
800 | Vector<uChar> flagCaloff, flagCalon; |
---|
801 | outflagCol.get(i, flagCaloff); |
---|
802 | onflagCol.get(i, flagCalon); |
---|
803 | outtcalIdCol.get(i, tcalId); |
---|
804 | outintCol.get(i, offint); |
---|
805 | onintCol.get(i, onint); |
---|
806 | // caluculate mean Tsys |
---|
807 | uInt nchan = specCaloff.nelements(); |
---|
808 | // percentage of edge cut off |
---|
809 | uInt pc = 10; |
---|
810 | uInt bchan = nchan/pc; |
---|
811 | uInt echan = nchan-bchan; |
---|
812 | |
---|
813 | Slicer chansl(IPosition(1,bchan-1), IPosition(1,echan-1), IPosition(1,1),Slicer::endIsLast); |
---|
814 | Vector<Float> testsubsp = specCaloff(chansl); |
---|
815 | MaskedArray<Float> spoff = maskedArray( specCaloff(chansl),flagCaloff(chansl) ); |
---|
816 | MaskedArray<Float> spon = maskedArray( specCalon(chansl),flagCalon(chansl) ); |
---|
817 | MaskedArray<Float> spdiff = spon-spoff; |
---|
818 | uInt noff = spoff.nelementsValid(); |
---|
819 | //uInt non = spon.nelementsValid(); |
---|
820 | uInt ndiff = spdiff.nelementsValid(); |
---|
821 | Float meantsys; |
---|
822 | |
---|
823 | /** |
---|
824 | Double subspec, subdiff; |
---|
825 | uInt usednchan; |
---|
826 | subspec = 0; |
---|
827 | subdiff = 0; |
---|
828 | usednchan = 0; |
---|
829 | for(uInt k=(bchan-1); k<echan; k++) { |
---|
830 | subspec += specCaloff[k]; |
---|
831 | subdiff += static_cast<Double>(specCalon[k]-specCaloff[k]); |
---|
832 | ++usednchan; |
---|
833 | } |
---|
834 | **/ |
---|
835 | // get tcal if input tcal <= 0 |
---|
836 | String tcalt; |
---|
837 | Float tcalUsed; |
---|
838 | tcalUsed = tcal; |
---|
839 | if ( tcal <= 0.0 ) { |
---|
840 | caloff->tcal().getEntry(tcalt, tcalout, tcalId); |
---|
841 | if (polno<=3) { |
---|
842 | tcalUsed = tcalout[polno]; |
---|
843 | } |
---|
844 | else { |
---|
845 | tcalUsed = tcalout[0]; |
---|
846 | } |
---|
847 | } |
---|
848 | |
---|
849 | Float meanoff; |
---|
850 | Float meandiff; |
---|
851 | if (noff && ndiff) { |
---|
852 | //Debug |
---|
853 | //if(noff!=ndiff) cerr<<"noff and ndiff is not equal"<<endl; |
---|
854 | meanoff = sum(spoff)/noff; |
---|
855 | meandiff = sum(spdiff)/ndiff; |
---|
856 | meantsys= (meanoff/meandiff )*tcalUsed + tcalUsed/2; |
---|
857 | } |
---|
858 | else { |
---|
859 | meantsys=1; |
---|
860 | } |
---|
861 | |
---|
862 | tsysout[0] = Float(meantsys); |
---|
863 | MaskedArray<Float> mcaloff = maskedArray(specCaloff, flagCaloff); |
---|
864 | MaskedArray<Float> mcalon = maskedArray(specCalon, flagCalon); |
---|
865 | MaskedArray<Float> sig = Float(0.5) * (mcaloff + mcalon); |
---|
866 | //uInt ncaloff = mcaloff.nelementsValid(); |
---|
867 | //uInt ncalon = mcalon.nelementsValid(); |
---|
868 | |
---|
869 | outintCol.put(i, offint+onint); |
---|
870 | outspecCol.put(i, sig.getArray()); |
---|
871 | outflagCol.put(i, flagsFromMA(sig)); |
---|
872 | outtsysCol.put(i, tsysout); |
---|
873 | } |
---|
874 | ++sit; |
---|
875 | ++s2it; |
---|
876 | } |
---|
877 | return out; |
---|
878 | } |
---|
879 | |
---|
880 | //dosigref - migrated from GBT IDL's dosigref.pro, do calibration of position switch |
---|
881 | // observatiions. |
---|
882 | // input: sig and ref scantables, and an optional boxcar smoothing width(default width=0, |
---|
883 | // no smoothing). |
---|
884 | // output: resultant scantable [= (sig-ref/ref)*tsys] |
---|
885 | CountedPtr< Scantable > STMath::dosigref( const CountedPtr < Scantable >& sig, |
---|
886 | const CountedPtr < Scantable >& ref, |
---|
887 | int smoothref, |
---|
888 | casa::Float tsysv, |
---|
889 | casa::Float tau ) |
---|
890 | { |
---|
891 | if ( ! ref->conformant(*sig) ) { |
---|
892 | throw(AipsError("'sig' and 'ref' scantables are not conformant.")); |
---|
893 | } |
---|
894 | setInsitu(false); |
---|
895 | CountedPtr< Scantable > out = getScantable(sig, false); |
---|
896 | CountedPtr< Scantable > smref; |
---|
897 | if ( smoothref > 1 ) { |
---|
898 | float fsmoothref = static_cast<float>(smoothref); |
---|
899 | std::string inkernel = "boxcar"; |
---|
900 | smref = smooth(ref, inkernel, fsmoothref ); |
---|
901 | ostringstream oss; |
---|
902 | oss<<"Applied smoothing of "<<fsmoothref<<" on the reference."<<endl; |
---|
903 | pushLog(String(oss)); |
---|
904 | } |
---|
905 | else { |
---|
906 | smref = ref; |
---|
907 | } |
---|
908 | Table& tout = out->table(); |
---|
909 | const Table& tref = smref->table(); |
---|
910 | if ( tout.nrow() != tref.nrow() ) { |
---|
911 | throw(AipsError("Mismatch in number of rows to form on-source and reference pair.")); |
---|
912 | } |
---|
913 | // iteration by scanno? or cycle no. |
---|
914 | TableIterator sit(tout, "SCANNO"); |
---|
915 | TableIterator s2it(tref, "SCANNO"); |
---|
916 | while ( !sit.pastEnd() ) { |
---|
917 | Table ton = sit.table(); |
---|
918 | Table t = s2it.table(); |
---|
919 | ScalarColumn<Double> outintCol(ton, "INTERVAL"); |
---|
920 | ArrayColumn<Float> outspecCol(ton, "SPECTRA"); |
---|
921 | ArrayColumn<Float> outtsysCol(ton, "TSYS"); |
---|
922 | ArrayColumn<uChar> outflagCol(ton, "FLAGTRA"); |
---|
923 | ArrayColumn<Float> refspecCol(t, "SPECTRA"); |
---|
924 | ROScalarColumn<Double> refintCol(t, "INTERVAL"); |
---|
925 | ROArrayColumn<Float> reftsysCol(t, "TSYS"); |
---|
926 | ArrayColumn<uChar> refflagCol(t, "FLAGTRA"); |
---|
927 | ROScalarColumn<Float> refelevCol(t, "ELEVATION"); |
---|
928 | for (uInt i=0; i < ton.nrow(); ++i) { |
---|
929 | |
---|
930 | Double onint, refint; |
---|
931 | Vector<Float> specon, specref; |
---|
932 | // to store scalar (mean) tsys |
---|
933 | Vector<Float> tsysref; |
---|
934 | outintCol.get(i, onint); |
---|
935 | refintCol.get(i, refint); |
---|
936 | outspecCol.get(i, specon); |
---|
937 | refspecCol.get(i, specref); |
---|
938 | Vector<uChar> flagref, flagon; |
---|
939 | outflagCol.get(i, flagon); |
---|
940 | refflagCol.get(i, flagref); |
---|
941 | reftsysCol.get(i, tsysref); |
---|
942 | |
---|
943 | Float tsysrefscalar; |
---|
944 | if ( tsysv > 0.0 ) { |
---|
945 | ostringstream oss; |
---|
946 | Float elev; |
---|
947 | refelevCol.get(i, elev); |
---|
948 | oss << "user specified Tsys = " << tsysv; |
---|
949 | // do recalc elevation if EL = 0 |
---|
950 | if ( elev == 0 ) { |
---|
951 | throw(AipsError("EL=0, elevation data is missing.")); |
---|
952 | } else { |
---|
953 | if ( tau <= 0.0 ) { |
---|
954 | throw(AipsError("Valid tau is not supplied.")); |
---|
955 | } else { |
---|
956 | tsysrefscalar = tsysv * exp(tau/elev); |
---|
957 | } |
---|
958 | } |
---|
959 | oss << ", corrected (for El) tsys= "<<tsysrefscalar; |
---|
960 | pushLog(String(oss)); |
---|
961 | } |
---|
962 | else { |
---|
963 | tsysrefscalar = tsysref[0]; |
---|
964 | } |
---|
965 | //get quotient spectrum |
---|
966 | MaskedArray<Float> mref = maskedArray(specref, flagref); |
---|
967 | MaskedArray<Float> mon = maskedArray(specon, flagon); |
---|
968 | MaskedArray<Float> specres = tsysrefscalar*((mon - mref)/mref); |
---|
969 | Double resint = onint*refint*smoothref/(onint+refint*smoothref); |
---|
970 | |
---|
971 | //Debug |
---|
972 | //cerr<<"Tsys used="<<tsysrefscalar<<endl; |
---|
973 | // fill the result, replay signal tsys by reference tsys |
---|
974 | outintCol.put(i, resint); |
---|
975 | outspecCol.put(i, specres.getArray()); |
---|
976 | outflagCol.put(i, flagsFromMA(specres)); |
---|
977 | outtsysCol.put(i, tsysref); |
---|
978 | } |
---|
979 | ++sit; |
---|
980 | ++s2it; |
---|
981 | } |
---|
982 | return out; |
---|
983 | } |
---|
984 | |
---|
985 | CountedPtr< Scantable > STMath::donod(const casa::CountedPtr<Scantable>& s, |
---|
986 | const std::vector<int>& scans, |
---|
987 | int smoothref, |
---|
988 | casa::Float tsysv, |
---|
989 | casa::Float tau, |
---|
990 | casa::Float tcal ) |
---|
991 | |
---|
992 | { |
---|
993 | setInsitu(false); |
---|
994 | STSelector sel; |
---|
995 | std::vector<int> scan1, scan2, beams; |
---|
996 | std::vector< vector<int> > scanpair; |
---|
997 | std::vector<string> calstate; |
---|
998 | String msg; |
---|
999 | |
---|
1000 | CountedPtr< Scantable > s1b1on, s1b1off, s1b2on, s1b2off; |
---|
1001 | CountedPtr< Scantable > s2b1on, s2b1off, s2b2on, s2b2off; |
---|
1002 | |
---|
1003 | std::vector< CountedPtr< Scantable > > sctables; |
---|
1004 | sctables.push_back(s1b1on); |
---|
1005 | sctables.push_back(s1b1off); |
---|
1006 | sctables.push_back(s1b2on); |
---|
1007 | sctables.push_back(s1b2off); |
---|
1008 | sctables.push_back(s2b1on); |
---|
1009 | sctables.push_back(s2b1off); |
---|
1010 | sctables.push_back(s2b2on); |
---|
1011 | sctables.push_back(s2b2off); |
---|
1012 | |
---|
1013 | //check scanlist |
---|
1014 | int n=s->checkScanInfo(scans); |
---|
1015 | if (n==1) { |
---|
1016 | throw(AipsError("Incorrect scan pairs. ")); |
---|
1017 | } |
---|
1018 | |
---|
1019 | // Assume scans contain only a pair of consecutive scan numbers. |
---|
1020 | // It is assumed that first beam, b1, is on target. |
---|
1021 | // There is no check if the first beam is on or not. |
---|
1022 | if ( scans.size()==1 ) { |
---|
1023 | scan1.push_back(scans[0]); |
---|
1024 | scan2.push_back(scans[0]+1); |
---|
1025 | } else if ( scans.size()==2 ) { |
---|
1026 | scan1.push_back(scans[0]); |
---|
1027 | scan2.push_back(scans[1]); |
---|
1028 | } else { |
---|
1029 | if ( scans.size()%2 == 0 ) { |
---|
1030 | for (uInt i=0; i<scans.size(); i++) { |
---|
1031 | if (i%2 == 0) { |
---|
1032 | scan1.push_back(scans[i]); |
---|
1033 | } |
---|
1034 | else { |
---|
1035 | scan2.push_back(scans[i]); |
---|
1036 | } |
---|
1037 | } |
---|
1038 | } else { |
---|
1039 | throw(AipsError("Odd numbers of scans, cannot form pairs.")); |
---|
1040 | } |
---|
1041 | } |
---|
1042 | scanpair.push_back(scan1); |
---|
1043 | scanpair.push_back(scan2); |
---|
1044 | calstate.push_back("*calon"); |
---|
1045 | calstate.push_back("*[^calon]"); |
---|
1046 | CountedPtr< Scantable > ws = getScantable(s, false); |
---|
1047 | uInt l=0; |
---|
1048 | while ( l < sctables.size() ) { |
---|
1049 | for (uInt i=0; i < 2; i++) { |
---|
1050 | for (uInt j=0; j < 2; j++) { |
---|
1051 | for (uInt k=0; k < 2; k++) { |
---|
1052 | sel.reset(); |
---|
1053 | sel.setScans(scanpair[i]); |
---|
1054 | sel.setName(calstate[k]); |
---|
1055 | beams.clear(); |
---|
1056 | beams.push_back(j); |
---|
1057 | sel.setBeams(beams); |
---|
1058 | ws->setSelection(sel); |
---|
1059 | sctables[l]= getScantable(ws, false); |
---|
1060 | l++; |
---|
1061 | } |
---|
1062 | } |
---|
1063 | } |
---|
1064 | } |
---|
1065 | |
---|
1066 | // replace here by splitData or getData functionality |
---|
1067 | CountedPtr< Scantable > sig1; |
---|
1068 | CountedPtr< Scantable > ref1; |
---|
1069 | CountedPtr< Scantable > sig2; |
---|
1070 | CountedPtr< Scantable > ref2; |
---|
1071 | CountedPtr< Scantable > calb1; |
---|
1072 | CountedPtr< Scantable > calb2; |
---|
1073 | |
---|
1074 | msg=String("Processing dototalpower for subset of the data"); |
---|
1075 | ostringstream oss1; |
---|
1076 | oss1 << msg << endl; |
---|
1077 | pushLog(String(oss1)); |
---|
1078 | // Debug for IRC CS data |
---|
1079 | //float tcal1=7.0; |
---|
1080 | //float tcal2=4.0; |
---|
1081 | sig1 = dototalpower(sctables[0], sctables[1], tcal=tcal); |
---|
1082 | ref1 = dototalpower(sctables[2], sctables[3], tcal=tcal); |
---|
1083 | ref2 = dototalpower(sctables[4], sctables[5], tcal=tcal); |
---|
1084 | sig2 = dototalpower(sctables[6], sctables[7], tcal=tcal); |
---|
1085 | |
---|
1086 | // correction of user-specified tsys for elevation here |
---|
1087 | |
---|
1088 | // dosigref calibration |
---|
1089 | msg=String("Processing dosigref for subset of the data"); |
---|
1090 | ostringstream oss2; |
---|
1091 | oss2 << msg << endl; |
---|
1092 | pushLog(String(oss2)); |
---|
1093 | calb1=dosigref(sig1,ref2,smoothref,tsysv,tau); |
---|
1094 | calb2=dosigref(sig2,ref1,smoothref,tsysv,tau); |
---|
1095 | |
---|
1096 | // iteration by scanno or cycle no. |
---|
1097 | Table& tcalb1 = calb1->table(); |
---|
1098 | Table& tcalb2 = calb2->table(); |
---|
1099 | TableIterator sit(tcalb1, "SCANNO"); |
---|
1100 | TableIterator s2it(tcalb2, "SCANNO"); |
---|
1101 | while ( !sit.pastEnd() ) { |
---|
1102 | Table t1 = sit.table(); |
---|
1103 | Table t2= s2it.table(); |
---|
1104 | ArrayColumn<Float> outspecCol(t1, "SPECTRA"); |
---|
1105 | ArrayColumn<Float> outtsysCol(t1, "TSYS"); |
---|
1106 | ArrayColumn<uChar> outflagCol(t1, "FLAGTRA"); |
---|
1107 | ScalarColumn<Double> outintCol(t1, "INTERVAL"); |
---|
1108 | ArrayColumn<Float> t2specCol(t2, "SPECTRA"); |
---|
1109 | ROArrayColumn<Float> t2tsysCol(t2, "TSYS"); |
---|
1110 | ArrayColumn<uChar> t2flagCol(t2, "FLAGTRA"); |
---|
1111 | ROScalarColumn<Double> t2intCol(t2, "INTERVAL"); |
---|
1112 | for (uInt i=0; i < t1.nrow(); ++i) { |
---|
1113 | Vector<Float> spec1, spec2; |
---|
1114 | // to store scalar (mean) tsys |
---|
1115 | Vector<Float> tsys1, tsys2; |
---|
1116 | Vector<uChar> flag1, flag2; |
---|
1117 | Double tint1, tint2; |
---|
1118 | outspecCol.get(i, spec1); |
---|
1119 | t2specCol.get(i, spec2); |
---|
1120 | outflagCol.get(i, flag1); |
---|
1121 | t2flagCol.get(i, flag2); |
---|
1122 | outtsysCol.get(i, tsys1); |
---|
1123 | t2tsysCol.get(i, tsys2); |
---|
1124 | outintCol.get(i, tint1); |
---|
1125 | t2intCol.get(i, tint2); |
---|
1126 | // average |
---|
1127 | // assume scalar tsys for weights |
---|
1128 | Float wt1, wt2, tsyssq1, tsyssq2; |
---|
1129 | tsyssq1 = tsys1[0]*tsys1[0]; |
---|
1130 | tsyssq2 = tsys2[0]*tsys2[0]; |
---|
1131 | wt1 = Float(tint1)/tsyssq1; |
---|
1132 | wt2 = Float(tint2)/tsyssq2; |
---|
1133 | Float invsumwt=1/(wt1+wt2); |
---|
1134 | MaskedArray<Float> mspec1 = maskedArray(spec1, flag1); |
---|
1135 | MaskedArray<Float> mspec2 = maskedArray(spec2, flag2); |
---|
1136 | MaskedArray<Float> avspec = invsumwt * (wt1*mspec1 + wt2*mspec2); |
---|
1137 | //Array<Float> avtsys = Float(0.5) * (tsys1 + tsys2); |
---|
1138 | // cerr<< "Tsys1="<<tsys1<<" Tsys2="<<tsys2<<endl; |
---|
1139 | tsys1[0] = sqrt(tsyssq1 + tsyssq2); |
---|
1140 | Array<Float> avtsys = tsys1; |
---|
1141 | |
---|
1142 | outspecCol.put(i, avspec.getArray()); |
---|
1143 | outflagCol.put(i, flagsFromMA(avspec)); |
---|
1144 | outtsysCol.put(i, avtsys); |
---|
1145 | } |
---|
1146 | ++sit; |
---|
1147 | ++s2it; |
---|
1148 | } |
---|
1149 | return calb1; |
---|
1150 | } |
---|
1151 | |
---|
1152 | //GBTIDL version of frequency switched data calibration |
---|
1153 | CountedPtr< Scantable > STMath::dofs( const CountedPtr< Scantable >& s, |
---|
1154 | const std::vector<int>& scans, |
---|
1155 | int smoothref, |
---|
1156 | casa::Float tsysv, |
---|
1157 | casa::Float tau, |
---|
1158 | casa::Float tcal ) |
---|
1159 | { |
---|
1160 | |
---|
1161 | |
---|
1162 | STSelector sel; |
---|
1163 | CountedPtr< Scantable > ws = getScantable(s, false); |
---|
1164 | CountedPtr< Scantable > sig, sigwcal, ref, refwcal; |
---|
1165 | CountedPtr< Scantable > calsig, calref, out, out1, out2; |
---|
1166 | Bool nofold=False; |
---|
1167 | |
---|
1168 | //split the data |
---|
1169 | sel.setName("*_fs"); |
---|
1170 | ws->setSelection(sel); |
---|
1171 | sig = getScantable(ws,false); |
---|
1172 | sel.reset(); |
---|
1173 | sel.setName("*_fs_calon"); |
---|
1174 | ws->setSelection(sel); |
---|
1175 | sigwcal = getScantable(ws,false); |
---|
1176 | sel.reset(); |
---|
1177 | sel.setName("*_fsr"); |
---|
1178 | ws->setSelection(sel); |
---|
1179 | ref = getScantable(ws,false); |
---|
1180 | sel.reset(); |
---|
1181 | sel.setName("*_fsr_calon"); |
---|
1182 | ws->setSelection(sel); |
---|
1183 | refwcal = getScantable(ws,false); |
---|
1184 | |
---|
1185 | calsig = dototalpower(sigwcal, sig, tcal=tcal); |
---|
1186 | calref = dototalpower(refwcal, ref, tcal=tcal); |
---|
1187 | |
---|
1188 | out1=dosigref(calsig,calref,smoothref,tsysv,tau); |
---|
1189 | out2=dosigref(calref,calsig,smoothref,tsysv,tau); |
---|
1190 | |
---|
1191 | Table& tabout1=out1->table(); |
---|
1192 | Table& tabout2=out2->table(); |
---|
1193 | ROScalarColumn<uInt> freqidCol1(tabout1, "FREQ_ID"); |
---|
1194 | ScalarColumn<uInt> freqidCol2(tabout2, "FREQ_ID"); |
---|
1195 | ROArrayColumn<Float> specCol(tabout2, "SPECTRA"); |
---|
1196 | Vector<Float> spec; specCol.get(0, spec); |
---|
1197 | uInt nchan = spec.nelements(); |
---|
1198 | uInt freqid1; freqidCol1.get(0,freqid1); |
---|
1199 | uInt freqid2; freqidCol2.get(0,freqid2); |
---|
1200 | Double rp1, rp2, rv1, rv2, inc1, inc2; |
---|
1201 | out1->frequencies().getEntry(rp1, rv1, inc1, freqid1); |
---|
1202 | out2->frequencies().getEntry(rp2, rv2, inc2, freqid2); |
---|
1203 | //cerr << out1->frequencies().table().nrow() << " " << out2->frequencies().table().nrow() << endl ; |
---|
1204 | if (rp1==rp2) { |
---|
1205 | Double foffset = rv1 - rv2; |
---|
1206 | uInt choffset = static_cast<uInt>(foffset/abs(inc2)); |
---|
1207 | if (choffset >= nchan) { |
---|
1208 | cerr<<"out-band frequency switching, no folding"<<endl; |
---|
1209 | nofold = True; |
---|
1210 | } |
---|
1211 | } |
---|
1212 | |
---|
1213 | if (nofold) { |
---|
1214 | std::vector< CountedPtr< Scantable > > tabs; |
---|
1215 | tabs.push_back(out1); |
---|
1216 | tabs.push_back(out2); |
---|
1217 | out = merge(tabs); |
---|
1218 | } |
---|
1219 | else { //folding is not implemented yet |
---|
1220 | //out = out1; |
---|
1221 | Int choffset = static_cast<Int>((rv1-rv2)/inc2) ; |
---|
1222 | out = dofold( out1, out2, choffset ) ; |
---|
1223 | } |
---|
1224 | |
---|
1225 | return out; |
---|
1226 | } |
---|
1227 | |
---|
1228 | CountedPtr<Scantable> STMath::dofold( const CountedPtr<Scantable> &sig, |
---|
1229 | const CountedPtr<Scantable> &ref, |
---|
1230 | Int choffset ) |
---|
1231 | { |
---|
1232 | // output scantable |
---|
1233 | CountedPtr<Scantable> out = getScantable( sig, false ) ; |
---|
1234 | |
---|
1235 | // get column |
---|
1236 | ROArrayColumn<Float> specCol1( sig->table(), "SPECTRA" ) ; |
---|
1237 | ROArrayColumn<Float> specCol2( ref->table(), "SPECTRA" ) ; |
---|
1238 | ROArrayColumn<Float> tsysCol1( sig->table(), "TSYS" ) ; |
---|
1239 | ROArrayColumn<Float> tsysCol2( ref->table(), "TSYS" ) ; |
---|
1240 | ROArrayColumn<uChar> flagCol1( sig->table(), "FLAGTRA" ) ; |
---|
1241 | ROArrayColumn<uChar> flagCol2( ref->table(), "FLAGTRA" ) ; |
---|
1242 | ROScalarColumn<Double> mjdCol1( sig->table(), "TIME" ) ; |
---|
1243 | ROScalarColumn<Double> mjdCol2( ref->table(), "TIME" ) ; |
---|
1244 | ROScalarColumn<Double> intervalCol1( sig->table(), "INTERVAL" ) ; |
---|
1245 | ROScalarColumn<Double> intervalCol2( ref->table(), "INTERVAL" ) ; |
---|
1246 | |
---|
1247 | // check |
---|
1248 | if ( choffset == 0 ) { |
---|
1249 | cerr << "channel offset is zero, no folding" << endl ; |
---|
1250 | return out ; |
---|
1251 | } |
---|
1252 | int nchan = ref->nchan() ; |
---|
1253 | if ( abs(choffset) >= nchan ) { |
---|
1254 | cerr << "out-band frequency switching, no folding" << endl ; |
---|
1255 | return out ; |
---|
1256 | } |
---|
1257 | |
---|
1258 | // attach column for output scantable |
---|
1259 | ArrayColumn<Float> specColOut( out->table(), "SPECTRA" ) ; |
---|
1260 | ArrayColumn<uChar> flagColOut( out->table(), "FLAGTRA" ) ; |
---|
1261 | ArrayColumn<Float> tsysColOut( out->table(), "TSYS" ) ; |
---|
1262 | ScalarColumn<Double> mjdColOut( out->table(), "TIME" ) ; |
---|
1263 | ScalarColumn<Double> intervalColOut( out->table(), "INTERVAL" ) ; |
---|
1264 | |
---|
1265 | // for each row |
---|
1266 | // assume that the data order are same between sig and ref |
---|
1267 | RowAccumulator acc( asap::TINTSYS ) ; |
---|
1268 | for ( int i = 0 ; i < sig->nrow() ; i++ ) { |
---|
1269 | // get values |
---|
1270 | Vector<Float> spsig ; |
---|
1271 | specCol1.get( i, spsig ) ; |
---|
1272 | Vector<Float> spref ; |
---|
1273 | specCol2.get( i, spref ) ; |
---|
1274 | Vector<Float> tsyssig ; |
---|
1275 | tsysCol1.get( i, tsyssig ) ; |
---|
1276 | Vector<Float> tsysref ; |
---|
1277 | tsysCol2.get( i, tsysref ) ; |
---|
1278 | Vector<uChar> flagsig ; |
---|
1279 | flagCol1.get( i, flagsig ) ; |
---|
1280 | Vector<uChar> flagref ; |
---|
1281 | flagCol2.get( i, flagref ) ; |
---|
1282 | Double timesig ; |
---|
1283 | mjdCol1.get( i, timesig ) ; |
---|
1284 | Double timeref ; |
---|
1285 | mjdCol2.get( i, timeref ) ; |
---|
1286 | Double intsig ; |
---|
1287 | intervalCol1.get( i, intsig ) ; |
---|
1288 | Double intref ; |
---|
1289 | intervalCol2.get( i, intref ) ; |
---|
1290 | |
---|
1291 | // shift reference spectra |
---|
1292 | int refchan = spref.nelements() ; |
---|
1293 | if ( choffset > 0 ) { |
---|
1294 | for ( int j = 0 ; j < refchan-choffset ; j++ ) { |
---|
1295 | spref[j] = spref[j+choffset] ; |
---|
1296 | tsysref[j] = tsysref[j+choffset] ; |
---|
1297 | flagref[j] = flagref[j+choffset] ; |
---|
1298 | } |
---|
1299 | for ( int j = refchan-choffset ; j < refchan ; j++ ) { |
---|
1300 | spref[j] = spref[j-refchan+choffset] ; |
---|
1301 | tsysref[j] = tsysref[j-refchan+choffset] ; |
---|
1302 | flagref[j] = flagref[j-refchan+choffset] ; |
---|
1303 | } |
---|
1304 | } |
---|
1305 | else { |
---|
1306 | for ( int j = 0 ; j < abs(choffset) ; j++ ) { |
---|
1307 | spref[j] = spref[refchan+choffset+j] ; |
---|
1308 | tsysref[j] = tsysref[refchan+choffset+j] ; |
---|
1309 | flagref[j] = flagref[refchan+choffset+j] ; |
---|
1310 | } |
---|
1311 | for ( int j = abs(choffset) ; j < refchan ; j++ ) { |
---|
1312 | spref[j] = spref[j+choffset] ; |
---|
1313 | tsysref[j] = tsysref[j+choffset] ; |
---|
1314 | flagref[j] = flagref[j+choffset] ; |
---|
1315 | } |
---|
1316 | } |
---|
1317 | |
---|
1318 | // folding |
---|
1319 | acc.add( spsig, !flagsig, tsyssig, intsig, timesig ) ; |
---|
1320 | acc.add( spref, !flagref, tsysref, intref, timeref ) ; |
---|
1321 | |
---|
1322 | // put result |
---|
1323 | specColOut.put( i, acc.getSpectrum() ) ; |
---|
1324 | const Vector<Bool> &msk = acc.getMask() ; |
---|
1325 | Vector<uChar> flg( msk.shape() ) ; |
---|
1326 | convertArray( flg, !msk ) ; |
---|
1327 | flagColOut.put( i, flg ) ; |
---|
1328 | tsysColOut.put( i, acc.getTsys() ) ; |
---|
1329 | intervalColOut.put( i, acc.getInterval() ) ; |
---|
1330 | mjdColOut.put( i, acc.getTime() ) ; |
---|
1331 | |
---|
1332 | acc.reset() ; |
---|
1333 | } |
---|
1334 | |
---|
1335 | return out ; |
---|
1336 | } |
---|
1337 | |
---|
1338 | |
---|
1339 | CountedPtr< Scantable > STMath::freqSwitch( const CountedPtr< Scantable >& in ) |
---|
1340 | { |
---|
1341 | // make copy or reference |
---|
1342 | CountedPtr< Scantable > out = getScantable(in, false); |
---|
1343 | Table& tout = out->table(); |
---|
1344 | Block<String> cols(4); |
---|
1345 | cols[0] = String("SCANNO"); |
---|
1346 | cols[1] = String("CYCLENO"); |
---|
1347 | cols[2] = String("BEAMNO"); |
---|
1348 | cols[3] = String("POLNO"); |
---|
1349 | TableIterator iter(tout, cols); |
---|
1350 | while (!iter.pastEnd()) { |
---|
1351 | Table subt = iter.table(); |
---|
1352 | // this should leave us with two rows for the two IFs....if not ignore |
---|
1353 | if (subt.nrow() != 2 ) { |
---|
1354 | continue; |
---|
1355 | } |
---|
1356 | ArrayColumn<Float> specCol(subt, "SPECTRA"); |
---|
1357 | ArrayColumn<Float> tsysCol(subt, "TSYS"); |
---|
1358 | ArrayColumn<uChar> flagCol(subt, "FLAGTRA"); |
---|
1359 | Vector<Float> onspec,offspec, ontsys, offtsys; |
---|
1360 | Vector<uChar> onflag, offflag; |
---|
1361 | tsysCol.get(0, ontsys); tsysCol.get(1, offtsys); |
---|
1362 | specCol.get(0, onspec); specCol.get(1, offspec); |
---|
1363 | flagCol.get(0, onflag); flagCol.get(1, offflag); |
---|
1364 | MaskedArray<Float> on = maskedArray(onspec, onflag); |
---|
1365 | MaskedArray<Float> off = maskedArray(offspec, offflag); |
---|
1366 | MaskedArray<Float> oncopy = on.copy(); |
---|
1367 | |
---|
1368 | on /= off; on -= 1.0f; |
---|
1369 | on *= ontsys[0]; |
---|
1370 | off /= oncopy; off -= 1.0f; |
---|
1371 | off *= offtsys[0]; |
---|
1372 | specCol.put(0, on.getArray()); |
---|
1373 | const Vector<Bool>& m0 = on.getMask(); |
---|
1374 | Vector<uChar> flags0(m0.shape()); |
---|
1375 | convertArray(flags0, !m0); |
---|
1376 | flagCol.put(0, flags0); |
---|
1377 | |
---|
1378 | specCol.put(1, off.getArray()); |
---|
1379 | const Vector<Bool>& m1 = off.getMask(); |
---|
1380 | Vector<uChar> flags1(m1.shape()); |
---|
1381 | convertArray(flags1, !m1); |
---|
1382 | flagCol.put(1, flags1); |
---|
1383 | ++iter; |
---|
1384 | } |
---|
1385 | |
---|
1386 | return out; |
---|
1387 | } |
---|
1388 | |
---|
1389 | std::vector< float > STMath::statistic( const CountedPtr< Scantable > & in, |
---|
1390 | const std::vector< bool > & mask, |
---|
1391 | const std::string& which ) |
---|
1392 | { |
---|
1393 | |
---|
1394 | Vector<Bool> m(mask); |
---|
1395 | const Table& tab = in->table(); |
---|
1396 | ROArrayColumn<Float> specCol(tab, "SPECTRA"); |
---|
1397 | ROArrayColumn<uChar> flagCol(tab, "FLAGTRA"); |
---|
1398 | std::vector<float> out; |
---|
1399 | for (uInt i=0; i < tab.nrow(); ++i ) { |
---|
1400 | Vector<Float> spec; specCol.get(i, spec); |
---|
1401 | Vector<uChar> flag; flagCol.get(i, flag); |
---|
1402 | MaskedArray<Float> ma = maskedArray(spec, flag); |
---|
1403 | float outstat = 0.0; |
---|
1404 | if ( spec.nelements() == m.nelements() ) { |
---|
1405 | outstat = mathutil::statistics(which, ma(m)); |
---|
1406 | } else { |
---|
1407 | outstat = mathutil::statistics(which, ma); |
---|
1408 | } |
---|
1409 | out.push_back(outstat); |
---|
1410 | } |
---|
1411 | return out; |
---|
1412 | } |
---|
1413 | |
---|
1414 | std::vector< int > STMath::minMaxChan( const CountedPtr< Scantable > & in, |
---|
1415 | const std::vector< bool > & mask, |
---|
1416 | const std::string& which ) |
---|
1417 | { |
---|
1418 | |
---|
1419 | Vector<Bool> m(mask); |
---|
1420 | const Table& tab = in->table(); |
---|
1421 | ROArrayColumn<Float> specCol(tab, "SPECTRA"); |
---|
1422 | ROArrayColumn<uChar> flagCol(tab, "FLAGTRA"); |
---|
1423 | std::vector<int> out; |
---|
1424 | for (uInt i=0; i < tab.nrow(); ++i ) { |
---|
1425 | Vector<Float> spec; specCol.get(i, spec); |
---|
1426 | Vector<uChar> flag; flagCol.get(i, flag); |
---|
1427 | MaskedArray<Float> ma = maskedArray(spec, flag); |
---|
1428 | if (ma.ndim() != 1) { |
---|
1429 | throw (ArrayError( |
---|
1430 | "std::vector<int> STMath::minMaxChan(" |
---|
1431 | "ContedPtr<Scantable> &in, std::vector<bool> &mask, " |
---|
1432 | " std::string &which)" |
---|
1433 | " - MaskedArray is not 1D")); |
---|
1434 | } |
---|
1435 | IPosition outpos(1,0); |
---|
1436 | if ( spec.nelements() == m.nelements() ) { |
---|
1437 | outpos = mathutil::minMaxPos(which, ma(m)); |
---|
1438 | } else { |
---|
1439 | outpos = mathutil::minMaxPos(which, ma); |
---|
1440 | } |
---|
1441 | out.push_back(outpos[0]); |
---|
1442 | } |
---|
1443 | return out; |
---|
1444 | } |
---|
1445 | |
---|
1446 | CountedPtr< Scantable > STMath::bin( const CountedPtr< Scantable > & in, |
---|
1447 | int width ) |
---|
1448 | { |
---|
1449 | if ( !in->getSelection().empty() ) throw(AipsError("Can't bin subset of the data.")); |
---|
1450 | CountedPtr< Scantable > out = getScantable(in, false); |
---|
1451 | Table& tout = out->table(); |
---|
1452 | out->frequencies().rescale(width, "BIN"); |
---|
1453 | ArrayColumn<Float> specCol(tout, "SPECTRA"); |
---|
1454 | ArrayColumn<uChar> flagCol(tout, "FLAGTRA"); |
---|
1455 | for (uInt i=0; i < tout.nrow(); ++i ) { |
---|
1456 | MaskedArray<Float> main = maskedArray(specCol(i), flagCol(i)); |
---|
1457 | MaskedArray<Float> maout; |
---|
1458 | LatticeUtilities::bin(maout, main, 0, Int(width)); |
---|
1459 | /// @todo implement channel based tsys binning |
---|
1460 | specCol.put(i, maout.getArray()); |
---|
1461 | flagCol.put(i, flagsFromMA(maout)); |
---|
1462 | // take only the first binned spectrum's length for the deprecated |
---|
1463 | // global header item nChan |
---|
1464 | if (i==0) tout.rwKeywordSet().define(String("nChan"), |
---|
1465 | Int(maout.getArray().nelements())); |
---|
1466 | } |
---|
1467 | return out; |
---|
1468 | } |
---|
1469 | |
---|
1470 | CountedPtr< Scantable > STMath::resample( const CountedPtr< Scantable >& in, |
---|
1471 | const std::string& method, |
---|
1472 | float width ) |
---|
1473 | // |
---|
1474 | // Should add the possibility of width being specified in km/s. This means |
---|
1475 | // that for each freqID (SpectralCoordinate) we will need to convert to an |
---|
1476 | // average channel width (say at the reference pixel). Then we would need |
---|
1477 | // to be careful to make sure each spectrum (of different freqID) |
---|
1478 | // is the same length. |
---|
1479 | // |
---|
1480 | { |
---|
1481 | //InterpolateArray1D<Double,Float>::InterpolationMethod interp; |
---|
1482 | Int interpMethod(stringToIMethod(method)); |
---|
1483 | |
---|
1484 | CountedPtr< Scantable > out = getScantable(in, false); |
---|
1485 | Table& tout = out->table(); |
---|
1486 | |
---|
1487 | // Resample SpectralCoordinates (one per freqID) |
---|
1488 | out->frequencies().rescale(width, "RESAMPLE"); |
---|
1489 | TableIterator iter(tout, "IFNO"); |
---|
1490 | TableRow row(tout); |
---|
1491 | while ( !iter.pastEnd() ) { |
---|
1492 | Table tab = iter.table(); |
---|
1493 | ArrayColumn<Float> specCol(tab, "SPECTRA"); |
---|
1494 | //ArrayColumn<Float> tsysCol(tout, "TSYS"); |
---|
1495 | ArrayColumn<uChar> flagCol(tab, "FLAGTRA"); |
---|
1496 | Vector<Float> spec; |
---|
1497 | Vector<uChar> flag; |
---|
1498 | specCol.get(0,spec); // the number of channels should be constant per IF |
---|
1499 | uInt nChanIn = spec.nelements(); |
---|
1500 | Vector<Float> xIn(nChanIn); indgen(xIn); |
---|
1501 | Int fac = Int(nChanIn/width); |
---|
1502 | Vector<Float> xOut(fac+10); // 10 to be safe - resize later |
---|
1503 | uInt k = 0; |
---|
1504 | Float x = 0.0; |
---|
1505 | while (x < Float(nChanIn) ) { |
---|
1506 | xOut(k) = x; |
---|
1507 | k++; |
---|
1508 | x += width; |
---|
1509 | } |
---|
1510 | uInt nChanOut = k; |
---|
1511 | xOut.resize(nChanOut, True); |
---|
1512 | // process all rows for this IFNO |
---|
1513 | Vector<Float> specOut; |
---|
1514 | Vector<Bool> maskOut; |
---|
1515 | Vector<uChar> flagOut; |
---|
1516 | for (uInt i=0; i < tab.nrow(); ++i) { |
---|
1517 | specCol.get(i, spec); |
---|
1518 | flagCol.get(i, flag); |
---|
1519 | Vector<Bool> mask(flag.nelements()); |
---|
1520 | convertArray(mask, flag); |
---|
1521 | |
---|
1522 | IPosition shapeIn(spec.shape()); |
---|
1523 | //sh.nchan = nChanOut; |
---|
1524 | InterpolateArray1D<Float,Float>::interpolate(specOut, maskOut, xOut, |
---|
1525 | xIn, spec, mask, |
---|
1526 | interpMethod, True, True); |
---|
1527 | /// @todo do the same for channel based Tsys |
---|
1528 | flagOut.resize(maskOut.nelements()); |
---|
1529 | convertArray(flagOut, maskOut); |
---|
1530 | specCol.put(i, specOut); |
---|
1531 | flagCol.put(i, flagOut); |
---|
1532 | } |
---|
1533 | ++iter; |
---|
1534 | } |
---|
1535 | |
---|
1536 | return out; |
---|
1537 | } |
---|
1538 | |
---|
1539 | STMath::imethod STMath::stringToIMethod(const std::string& in) |
---|
1540 | { |
---|
1541 | static STMath::imap lookup; |
---|
1542 | |
---|
1543 | // initialize the lookup table if necessary |
---|
1544 | if ( lookup.empty() ) { |
---|
1545 | lookup["nearest"] = InterpolateArray1D<Double,Float>::nearestNeighbour; |
---|
1546 | lookup["linear"] = InterpolateArray1D<Double,Float>::linear; |
---|
1547 | lookup["cubic"] = InterpolateArray1D<Double,Float>::cubic; |
---|
1548 | lookup["spline"] = InterpolateArray1D<Double,Float>::spline; |
---|
1549 | } |
---|
1550 | |
---|
1551 | STMath::imap::const_iterator iter = lookup.find(in); |
---|
1552 | |
---|
1553 | if ( lookup.end() == iter ) { |
---|
1554 | std::string message = in; |
---|
1555 | message += " is not a valid interpolation mode"; |
---|
1556 | throw(AipsError(message)); |
---|
1557 | } |
---|
1558 | return iter->second; |
---|
1559 | } |
---|
1560 | |
---|
1561 | WeightType STMath::stringToWeight(const std::string& in) |
---|
1562 | { |
---|
1563 | static std::map<std::string, WeightType> lookup; |
---|
1564 | |
---|
1565 | // initialize the lookup table if necessary |
---|
1566 | if ( lookup.empty() ) { |
---|
1567 | lookup["NONE"] = asap::NONE; |
---|
1568 | lookup["TINT"] = asap::TINT; |
---|
1569 | lookup["TINTSYS"] = asap::TINTSYS; |
---|
1570 | lookup["TSYS"] = asap::TSYS; |
---|
1571 | lookup["VAR"] = asap::VAR; |
---|
1572 | } |
---|
1573 | |
---|
1574 | std::map<std::string, WeightType>::const_iterator iter = lookup.find(in); |
---|
1575 | |
---|
1576 | if ( lookup.end() == iter ) { |
---|
1577 | std::string message = in; |
---|
1578 | message += " is not a valid weighting mode"; |
---|
1579 | throw(AipsError(message)); |
---|
1580 | } |
---|
1581 | return iter->second; |
---|
1582 | } |
---|
1583 | |
---|
1584 | CountedPtr< Scantable > STMath::gainElevation( const CountedPtr< Scantable >& in, |
---|
1585 | const vector< float > & coeff, |
---|
1586 | const std::string & filename, |
---|
1587 | const std::string& method) |
---|
1588 | { |
---|
1589 | // Get elevation data from Scantable and convert to degrees |
---|
1590 | CountedPtr< Scantable > out = getScantable(in, false); |
---|
1591 | Table& tab = out->table(); |
---|
1592 | ROScalarColumn<Float> elev(tab, "ELEVATION"); |
---|
1593 | Vector<Float> x = elev.getColumn(); |
---|
1594 | x *= Float(180 / C::pi); // Degrees |
---|
1595 | |
---|
1596 | Vector<Float> coeffs(coeff); |
---|
1597 | const uInt nc = coeffs.nelements(); |
---|
1598 | if ( filename.length() > 0 && nc > 0 ) { |
---|
1599 | throw(AipsError("You must choose either polynomial coefficients or an ascii file, not both")); |
---|
1600 | } |
---|
1601 | |
---|
1602 | // Correct |
---|
1603 | if ( nc > 0 || filename.length() == 0 ) { |
---|
1604 | // Find instrument |
---|
1605 | Bool throwit = True; |
---|
1606 | Instrument inst = |
---|
1607 | STAttr::convertInstrument(tab.keywordSet().asString("AntennaName"), |
---|
1608 | throwit); |
---|
1609 | |
---|
1610 | // Set polynomial |
---|
1611 | Polynomial<Float>* ppoly = 0; |
---|
1612 | Vector<Float> coeff; |
---|
1613 | String msg; |
---|
1614 | if ( nc > 0 ) { |
---|
1615 | ppoly = new Polynomial<Float>(nc); |
---|
1616 | coeff = coeffs; |
---|
1617 | msg = String("user"); |
---|
1618 | } else { |
---|
1619 | STAttr sdAttr; |
---|
1620 | coeff = sdAttr.gainElevationPoly(inst); |
---|
1621 | ppoly = new Polynomial<Float>(3); |
---|
1622 | msg = String("built in"); |
---|
1623 | } |
---|
1624 | |
---|
1625 | if ( coeff.nelements() > 0 ) { |
---|
1626 | ppoly->setCoefficients(coeff); |
---|
1627 | } else { |
---|
1628 | delete ppoly; |
---|
1629 | throw(AipsError("There is no known gain-elevation polynomial known for this instrument")); |
---|
1630 | } |
---|
1631 | ostringstream oss; |
---|
1632 | oss << "Making polynomial correction with " << msg << " coefficients:" << endl; |
---|
1633 | oss << " " << coeff; |
---|
1634 | pushLog(String(oss)); |
---|
1635 | const uInt nrow = tab.nrow(); |
---|
1636 | Vector<Float> factor(nrow); |
---|
1637 | for ( uInt i=0; i < nrow; ++i ) { |
---|
1638 | factor[i] = 1.0 / (*ppoly)(x[i]); |
---|
1639 | } |
---|
1640 | delete ppoly; |
---|
1641 | scaleByVector(tab, factor, true); |
---|
1642 | |
---|
1643 | } else { |
---|
1644 | // Read and correct |
---|
1645 | pushLog("Making correction from ascii Table"); |
---|
1646 | scaleFromAsciiTable(tab, filename, method, x, true); |
---|
1647 | } |
---|
1648 | return out; |
---|
1649 | } |
---|
1650 | |
---|
1651 | void STMath::scaleFromAsciiTable(Table& in, const std::string& filename, |
---|
1652 | const std::string& method, |
---|
1653 | const Vector<Float>& xout, bool dotsys) |
---|
1654 | { |
---|
1655 | |
---|
1656 | // Read gain-elevation ascii file data into a Table. |
---|
1657 | |
---|
1658 | String formatString; |
---|
1659 | Table tbl = readAsciiTable(formatString, Table::Memory, filename, "", "", False); |
---|
1660 | scaleFromTable(in, tbl, method, xout, dotsys); |
---|
1661 | } |
---|
1662 | |
---|
1663 | void STMath::scaleFromTable(Table& in, |
---|
1664 | const Table& table, |
---|
1665 | const std::string& method, |
---|
1666 | const Vector<Float>& xout, bool dotsys) |
---|
1667 | { |
---|
1668 | |
---|
1669 | ROScalarColumn<Float> geElCol(table, "ELEVATION"); |
---|
1670 | ROScalarColumn<Float> geFacCol(table, "FACTOR"); |
---|
1671 | Vector<Float> xin = geElCol.getColumn(); |
---|
1672 | Vector<Float> yin = geFacCol.getColumn(); |
---|
1673 | Vector<Bool> maskin(xin.nelements(),True); |
---|
1674 | |
---|
1675 | // Interpolate (and extrapolate) with desired method |
---|
1676 | |
---|
1677 | InterpolateArray1D<Double,Float>::InterpolationMethod interp = stringToIMethod(method); |
---|
1678 | |
---|
1679 | Vector<Float> yout; |
---|
1680 | Vector<Bool> maskout; |
---|
1681 | InterpolateArray1D<Float,Float>::interpolate(yout, maskout, xout, |
---|
1682 | xin, yin, maskin, interp, |
---|
1683 | True, True); |
---|
1684 | |
---|
1685 | scaleByVector(in, Float(1.0)/yout, dotsys); |
---|
1686 | } |
---|
1687 | |
---|
1688 | void STMath::scaleByVector( Table& in, |
---|
1689 | const Vector< Float >& factor, |
---|
1690 | bool dotsys ) |
---|
1691 | { |
---|
1692 | uInt nrow = in.nrow(); |
---|
1693 | if ( factor.nelements() != nrow ) { |
---|
1694 | throw(AipsError("factors.nelements() != table.nelements()")); |
---|
1695 | } |
---|
1696 | ArrayColumn<Float> specCol(in, "SPECTRA"); |
---|
1697 | ArrayColumn<uChar> flagCol(in, "FLAGTRA"); |
---|
1698 | ArrayColumn<Float> tsysCol(in, "TSYS"); |
---|
1699 | for (uInt i=0; i < nrow; ++i) { |
---|
1700 | MaskedArray<Float> ma = maskedArray(specCol(i), flagCol(i)); |
---|
1701 | ma *= factor[i]; |
---|
1702 | specCol.put(i, ma.getArray()); |
---|
1703 | flagCol.put(i, flagsFromMA(ma)); |
---|
1704 | if ( dotsys ) { |
---|
1705 | Vector<Float> tsys = tsysCol(i); |
---|
1706 | tsys *= factor[i]; |
---|
1707 | tsysCol.put(i,tsys); |
---|
1708 | } |
---|
1709 | } |
---|
1710 | } |
---|
1711 | |
---|
1712 | CountedPtr< Scantable > STMath::convertFlux( const CountedPtr< Scantable >& in, |
---|
1713 | float d, float etaap, |
---|
1714 | float jyperk ) |
---|
1715 | { |
---|
1716 | CountedPtr< Scantable > out = getScantable(in, false); |
---|
1717 | Table& tab = in->table(); |
---|
1718 | Unit fluxUnit(tab.keywordSet().asString("FluxUnit")); |
---|
1719 | Unit K(String("K")); |
---|
1720 | Unit JY(String("Jy")); |
---|
1721 | |
---|
1722 | bool tokelvin = true; |
---|
1723 | Double cfac = 1.0; |
---|
1724 | |
---|
1725 | if ( fluxUnit == JY ) { |
---|
1726 | pushLog("Converting to K"); |
---|
1727 | Quantum<Double> t(1.0,fluxUnit); |
---|
1728 | Quantum<Double> t2 = t.get(JY); |
---|
1729 | cfac = (t2 / t).getValue(); // value to Jy |
---|
1730 | |
---|
1731 | tokelvin = true; |
---|
1732 | out->setFluxUnit("K"); |
---|
1733 | } else if ( fluxUnit == K ) { |
---|
1734 | pushLog("Converting to Jy"); |
---|
1735 | Quantum<Double> t(1.0,fluxUnit); |
---|
1736 | Quantum<Double> t2 = t.get(K); |
---|
1737 | cfac = (t2 / t).getValue(); // value to K |
---|
1738 | |
---|
1739 | tokelvin = false; |
---|
1740 | out->setFluxUnit("Jy"); |
---|
1741 | } else { |
---|
1742 | throw(AipsError("Unrecognized brightness units in Table - must be consistent with Jy or K")); |
---|
1743 | } |
---|
1744 | // Make sure input values are converted to either Jy or K first... |
---|
1745 | Float factor = cfac; |
---|
1746 | |
---|
1747 | // Select method |
---|
1748 | if (jyperk > 0.0) { |
---|
1749 | factor *= jyperk; |
---|
1750 | if ( tokelvin ) factor = 1.0 / jyperk; |
---|
1751 | ostringstream oss; |
---|
1752 | oss << "Jy/K = " << jyperk; |
---|
1753 | pushLog(String(oss)); |
---|
1754 | Vector<Float> factors(tab.nrow(), factor); |
---|
1755 | scaleByVector(tab,factors, false); |
---|
1756 | } else if ( etaap > 0.0) { |
---|
1757 | if (d < 0) { |
---|
1758 | Instrument inst = |
---|
1759 | STAttr::convertInstrument(tab.keywordSet().asString("AntennaName"), |
---|
1760 | True); |
---|
1761 | STAttr sda; |
---|
1762 | d = sda.diameter(inst); |
---|
1763 | } |
---|
1764 | jyperk = STAttr::findJyPerK(etaap, d); |
---|
1765 | ostringstream oss; |
---|
1766 | oss << "Jy/K = " << jyperk; |
---|
1767 | pushLog(String(oss)); |
---|
1768 | factor *= jyperk; |
---|
1769 | if ( tokelvin ) { |
---|
1770 | factor = 1.0 / factor; |
---|
1771 | } |
---|
1772 | Vector<Float> factors(tab.nrow(), factor); |
---|
1773 | scaleByVector(tab, factors, False); |
---|
1774 | } else { |
---|
1775 | |
---|
1776 | // OK now we must deal with automatic look up of values. |
---|
1777 | // We must also deal with the fact that the factors need |
---|
1778 | // to be computed per IF and may be different and may |
---|
1779 | // change per integration. |
---|
1780 | |
---|
1781 | pushLog("Looking up conversion factors"); |
---|
1782 | convertBrightnessUnits(out, tokelvin, cfac); |
---|
1783 | } |
---|
1784 | |
---|
1785 | return out; |
---|
1786 | } |
---|
1787 | |
---|
1788 | void STMath::convertBrightnessUnits( CountedPtr<Scantable>& in, |
---|
1789 | bool tokelvin, float cfac ) |
---|
1790 | { |
---|
1791 | Table& table = in->table(); |
---|
1792 | Instrument inst = |
---|
1793 | STAttr::convertInstrument(table.keywordSet().asString("AntennaName"), True); |
---|
1794 | TableIterator iter(table, "FREQ_ID"); |
---|
1795 | STFrequencies stfreqs = in->frequencies(); |
---|
1796 | STAttr sdAtt; |
---|
1797 | while (!iter.pastEnd()) { |
---|
1798 | Table tab = iter.table(); |
---|
1799 | ArrayColumn<Float> specCol(tab, "SPECTRA"); |
---|
1800 | ArrayColumn<uChar> flagCol(tab, "FLAGTRA"); |
---|
1801 | ROScalarColumn<uInt> freqidCol(tab, "FREQ_ID"); |
---|
1802 | MEpoch::ROScalarColumn timeCol(tab, "TIME"); |
---|
1803 | |
---|
1804 | uInt freqid; freqidCol.get(0, freqid); |
---|
1805 | Vector<Float> tmpspec; specCol.get(0, tmpspec); |
---|
1806 | // STAttr.JyPerK has a Vector interface... change sometime. |
---|
1807 | Vector<Float> freqs(1,stfreqs.getRefFreq(freqid, tmpspec.nelements())); |
---|
1808 | for ( uInt i=0; i<tab.nrow(); ++i) { |
---|
1809 | Float jyperk = (sdAtt.JyPerK(inst, timeCol(i), freqs))[0]; |
---|
1810 | Float factor = cfac * jyperk; |
---|
1811 | if ( tokelvin ) factor = Float(1.0) / factor; |
---|
1812 | MaskedArray<Float> ma = maskedArray(specCol(i), flagCol(i)); |
---|
1813 | ma *= factor; |
---|
1814 | specCol.put(i, ma.getArray()); |
---|
1815 | flagCol.put(i, flagsFromMA(ma)); |
---|
1816 | } |
---|
1817 | ++iter; |
---|
1818 | } |
---|
1819 | } |
---|
1820 | |
---|
1821 | CountedPtr< Scantable > STMath::opacity( const CountedPtr< Scantable > & in, |
---|
1822 | float tau ) |
---|
1823 | { |
---|
1824 | CountedPtr< Scantable > out = getScantable(in, false); |
---|
1825 | |
---|
1826 | Table tab = out->table(); |
---|
1827 | ROScalarColumn<Float> elev(tab, "ELEVATION"); |
---|
1828 | ArrayColumn<Float> specCol(tab, "SPECTRA"); |
---|
1829 | ArrayColumn<uChar> flagCol(tab, "FLAGTRA"); |
---|
1830 | ArrayColumn<Float> tsysCol(tab, "TSYS"); |
---|
1831 | for ( uInt i=0; i<tab.nrow(); ++i) { |
---|
1832 | Float zdist = Float(C::pi_2) - elev(i); |
---|
1833 | Float factor = exp(tau/cos(zdist)); |
---|
1834 | MaskedArray<Float> ma = maskedArray(specCol(i), flagCol(i)); |
---|
1835 | ma *= factor; |
---|
1836 | specCol.put(i, ma.getArray()); |
---|
1837 | flagCol.put(i, flagsFromMA(ma)); |
---|
1838 | Vector<Float> tsys; |
---|
1839 | tsysCol.get(i, tsys); |
---|
1840 | tsys *= factor; |
---|
1841 | tsysCol.put(i, tsys); |
---|
1842 | } |
---|
1843 | return out; |
---|
1844 | } |
---|
1845 | |
---|
1846 | CountedPtr< Scantable > STMath::smoothOther( const CountedPtr< Scantable >& in, |
---|
1847 | const std::string& kernel, |
---|
1848 | float width ) |
---|
1849 | { |
---|
1850 | CountedPtr< Scantable > out = getScantable(in, false); |
---|
1851 | Table& table = out->table(); |
---|
1852 | ArrayColumn<Float> specCol(table, "SPECTRA"); |
---|
1853 | ArrayColumn<uChar> flagCol(table, "FLAGTRA"); |
---|
1854 | Vector<Float> spec; |
---|
1855 | Vector<uChar> flag; |
---|
1856 | for ( uInt i=0; i<table.nrow(); ++i) { |
---|
1857 | specCol.get(i, spec); |
---|
1858 | flagCol.get(i, flag); |
---|
1859 | Vector<Bool> mask(flag.nelements()); |
---|
1860 | convertArray(mask, flag); |
---|
1861 | Vector<Float> specout; |
---|
1862 | Vector<Bool> maskout; |
---|
1863 | if ( kernel == "hanning" ) { |
---|
1864 | mathutil::hanning(specout, maskout, spec , !mask); |
---|
1865 | convertArray(flag, !maskout); |
---|
1866 | } else if ( kernel == "rmedian" ) { |
---|
1867 | mathutil::runningMedian(specout, maskout, spec , mask, width); |
---|
1868 | convertArray(flag, maskout); |
---|
1869 | } |
---|
1870 | flagCol.put(i, flag); |
---|
1871 | specCol.put(i, specout); |
---|
1872 | } |
---|
1873 | return out; |
---|
1874 | } |
---|
1875 | |
---|
1876 | CountedPtr< Scantable > STMath::smooth( const CountedPtr< Scantable >& in, |
---|
1877 | const std::string& kernel, float width ) |
---|
1878 | { |
---|
1879 | if (kernel == "rmedian" || kernel == "hanning") { |
---|
1880 | return smoothOther(in, kernel, width); |
---|
1881 | } |
---|
1882 | CountedPtr< Scantable > out = getScantable(in, false); |
---|
1883 | Table& table = out->table(); |
---|
1884 | VectorKernel::KernelTypes type = VectorKernel::toKernelType(kernel); |
---|
1885 | // same IFNO should have same no of channels |
---|
1886 | // this saves overhead |
---|
1887 | TableIterator iter(table, "IFNO"); |
---|
1888 | while (!iter.pastEnd()) { |
---|
1889 | Table tab = iter.table(); |
---|
1890 | ArrayColumn<Float> specCol(tab, "SPECTRA"); |
---|
1891 | ArrayColumn<uChar> flagCol(tab, "FLAGTRA"); |
---|
1892 | Vector<Float> tmpspec; specCol.get(0, tmpspec); |
---|
1893 | uInt nchan = tmpspec.nelements(); |
---|
1894 | Vector<Float> kvec = VectorKernel::make(type, width, nchan, True, False); |
---|
1895 | Convolver<Float> conv(kvec, IPosition(1,nchan)); |
---|
1896 | Vector<Float> spec; |
---|
1897 | Vector<uChar> flag; |
---|
1898 | for ( uInt i=0; i<tab.nrow(); ++i) { |
---|
1899 | specCol.get(i, spec); |
---|
1900 | flagCol.get(i, flag); |
---|
1901 | Vector<Bool> mask(flag.nelements()); |
---|
1902 | convertArray(mask, flag); |
---|
1903 | Vector<Float> specout; |
---|
1904 | mathutil::replaceMaskByZero(specout, mask); |
---|
1905 | conv.linearConv(specout, spec); |
---|
1906 | specCol.put(i, specout); |
---|
1907 | } |
---|
1908 | ++iter; |
---|
1909 | } |
---|
1910 | return out; |
---|
1911 | } |
---|
1912 | |
---|
1913 | CountedPtr< Scantable > |
---|
1914 | STMath::merge( const std::vector< CountedPtr < Scantable > >& in ) |
---|
1915 | { |
---|
1916 | if ( in.size() < 2 ) { |
---|
1917 | throw(AipsError("Need at least two scantables to perform a merge.")); |
---|
1918 | } |
---|
1919 | std::vector<CountedPtr < Scantable > >::const_iterator it = in.begin(); |
---|
1920 | bool insitu = insitu_; |
---|
1921 | setInsitu(false); |
---|
1922 | CountedPtr< Scantable > out = getScantable(*it, false); |
---|
1923 | setInsitu(insitu); |
---|
1924 | Table& tout = out->table(); |
---|
1925 | ScalarColumn<uInt> freqidcol(tout,"FREQ_ID"), molidcol(tout, "MOLECULE_ID"); |
---|
1926 | ScalarColumn<uInt> scannocol(tout,"SCANNO"), focusidcol(tout,"FOCUS_ID"); |
---|
1927 | // Renumber SCANNO to be 0-based |
---|
1928 | Vector<uInt> scannos = scannocol.getColumn(); |
---|
1929 | uInt offset = min(scannos); |
---|
1930 | scannos -= offset; |
---|
1931 | scannocol.putColumn(scannos); |
---|
1932 | uInt newscanno = max(scannos)+1; |
---|
1933 | ++it; |
---|
1934 | while ( it != in.end() ){ |
---|
1935 | if ( ! (*it)->conformant(*out) ) { |
---|
1936 | // non conformant. |
---|
1937 | pushLog(String("Warning: Can't merge scantables as header info differs.")); |
---|
1938 | } |
---|
1939 | out->appendToHistoryTable((*it)->history()); |
---|
1940 | const Table& tab = (*it)->table(); |
---|
1941 | TableIterator scanit(tab, "SCANNO"); |
---|
1942 | while (!scanit.pastEnd()) { |
---|
1943 | TableIterator freqit(scanit.table(), "FREQ_ID"); |
---|
1944 | while ( !freqit.pastEnd() ) { |
---|
1945 | Table thetab = freqit.table(); |
---|
1946 | uInt nrow = tout.nrow(); |
---|
1947 | tout.addRow(thetab.nrow()); |
---|
1948 | TableCopy::copyRows(tout, thetab, nrow, 0, thetab.nrow()); |
---|
1949 | ROTableRow row(thetab); |
---|
1950 | for ( uInt i=0; i<thetab.nrow(); ++i) { |
---|
1951 | uInt k = nrow+i; |
---|
1952 | scannocol.put(k, newscanno); |
---|
1953 | const TableRecord& rec = row.get(i); |
---|
1954 | Double rv,rp,inc; |
---|
1955 | (*it)->frequencies().getEntry(rp, rv, inc, rec.asuInt("FREQ_ID")); |
---|
1956 | uInt id; |
---|
1957 | id = out->frequencies().addEntry(rp, rv, inc); |
---|
1958 | freqidcol.put(k,id); |
---|
1959 | //String name,fname;Double rf; |
---|
1960 | Vector<String> name,fname;Vector<Double> rf; |
---|
1961 | (*it)->molecules().getEntry(rf, name, fname, rec.asuInt("MOLECULE_ID")); |
---|
1962 | id = out->molecules().addEntry(rf, name, fname); |
---|
1963 | molidcol.put(k, id); |
---|
1964 | Float frot,fax,ftan,fhand,fmount,fuser, fxy, fxyp; |
---|
1965 | (*it)->focus().getEntry(fax, ftan, frot, fhand, |
---|
1966 | fmount,fuser, fxy, fxyp, |
---|
1967 | rec.asuInt("FOCUS_ID")); |
---|
1968 | id = out->focus().addEntry(fax, ftan, frot, fhand, |
---|
1969 | fmount,fuser, fxy, fxyp); |
---|
1970 | focusidcol.put(k, id); |
---|
1971 | } |
---|
1972 | ++freqit; |
---|
1973 | } |
---|
1974 | ++newscanno; |
---|
1975 | ++scanit; |
---|
1976 | } |
---|
1977 | ++it; |
---|
1978 | } |
---|
1979 | return out; |
---|
1980 | } |
---|
1981 | |
---|
1982 | CountedPtr< Scantable > |
---|
1983 | STMath::invertPhase( const CountedPtr < Scantable >& in ) |
---|
1984 | { |
---|
1985 | return applyToPol(in, &STPol::invertPhase, Float(0.0)); |
---|
1986 | } |
---|
1987 | |
---|
1988 | CountedPtr< Scantable > |
---|
1989 | STMath::rotateXYPhase( const CountedPtr < Scantable >& in, float phase ) |
---|
1990 | { |
---|
1991 | return applyToPol(in, &STPol::rotatePhase, Float(phase)); |
---|
1992 | } |
---|
1993 | |
---|
1994 | CountedPtr< Scantable > |
---|
1995 | STMath::rotateLinPolPhase( const CountedPtr < Scantable >& in, float phase ) |
---|
1996 | { |
---|
1997 | return applyToPol(in, &STPol::rotateLinPolPhase, Float(phase)); |
---|
1998 | } |
---|
1999 | |
---|
2000 | CountedPtr< Scantable > STMath::applyToPol( const CountedPtr<Scantable>& in, |
---|
2001 | STPol::polOperation fptr, |
---|
2002 | Float phase ) |
---|
2003 | { |
---|
2004 | CountedPtr< Scantable > out = getScantable(in, false); |
---|
2005 | Table& tout = out->table(); |
---|
2006 | Block<String> cols(4); |
---|
2007 | cols[0] = String("SCANNO"); |
---|
2008 | cols[1] = String("BEAMNO"); |
---|
2009 | cols[2] = String("IFNO"); |
---|
2010 | cols[3] = String("CYCLENO"); |
---|
2011 | TableIterator iter(tout, cols); |
---|
2012 | CountedPtr<STPol> stpol = STPol::getPolClass(out->factories_, |
---|
2013 | out->getPolType() ); |
---|
2014 | while (!iter.pastEnd()) { |
---|
2015 | Table t = iter.table(); |
---|
2016 | ArrayColumn<Float> speccol(t, "SPECTRA"); |
---|
2017 | ScalarColumn<uInt> focidcol(t, "FOCUS_ID"); |
---|
2018 | ScalarColumn<Float> parancol(t, "PARANGLE"); |
---|
2019 | Matrix<Float> pols(speccol.getColumn()); |
---|
2020 | try { |
---|
2021 | stpol->setSpectra(pols); |
---|
2022 | Float fang,fhand,parang; |
---|
2023 | fang = in->focusTable_.getTotalFeedAngle(focidcol(0)); |
---|
2024 | fhand = in->focusTable_.getFeedHand(focidcol(0)); |
---|
2025 | parang = parancol(0); |
---|
2026 | /// @todo re-enable this |
---|
2027 | // disable total feed angle to support paralactifying Caswell style |
---|
2028 | stpol->setPhaseCorrections(parang, -parang, fhand); |
---|
2029 | // use a member function pointer in STPol. This only works on |
---|
2030 | // the STPol pointer itself, not the Counted Pointer so |
---|
2031 | // derefernce it. |
---|
2032 | (&(*(stpol))->*fptr)(phase); |
---|
2033 | speccol.putColumn(stpol->getSpectra()); |
---|
2034 | } catch (AipsError& e) { |
---|
2035 | //delete stpol;stpol=0; |
---|
2036 | throw(e); |
---|
2037 | } |
---|
2038 | ++iter; |
---|
2039 | } |
---|
2040 | //delete stpol;stpol=0; |
---|
2041 | return out; |
---|
2042 | } |
---|
2043 | |
---|
2044 | CountedPtr< Scantable > |
---|
2045 | STMath::swapPolarisations( const CountedPtr< Scantable > & in ) |
---|
2046 | { |
---|
2047 | CountedPtr< Scantable > out = getScantable(in, false); |
---|
2048 | Table& tout = out->table(); |
---|
2049 | Table t0 = tout(tout.col("POLNO") == 0); |
---|
2050 | Table t1 = tout(tout.col("POLNO") == 1); |
---|
2051 | if ( t0.nrow() != t1.nrow() ) |
---|
2052 | throw(AipsError("Inconsistent number of polarisations")); |
---|
2053 | ArrayColumn<Float> speccol0(t0, "SPECTRA"); |
---|
2054 | ArrayColumn<uChar> flagcol0(t0, "FLAGTRA"); |
---|
2055 | ArrayColumn<Float> speccol1(t1, "SPECTRA"); |
---|
2056 | ArrayColumn<uChar> flagcol1(t1, "FLAGTRA"); |
---|
2057 | Matrix<Float> s0 = speccol0.getColumn(); |
---|
2058 | Matrix<uChar> f0 = flagcol0.getColumn(); |
---|
2059 | speccol0.putColumn(speccol1.getColumn()); |
---|
2060 | flagcol0.putColumn(flagcol1.getColumn()); |
---|
2061 | speccol1.putColumn(s0); |
---|
2062 | flagcol1.putColumn(f0); |
---|
2063 | return out; |
---|
2064 | } |
---|
2065 | |
---|
2066 | CountedPtr< Scantable > |
---|
2067 | STMath::averagePolarisations( const CountedPtr< Scantable > & in, |
---|
2068 | const std::vector<bool>& mask, |
---|
2069 | const std::string& weight ) |
---|
2070 | { |
---|
2071 | if (in->npol() < 2 ) |
---|
2072 | throw(AipsError("averagePolarisations can only be applied to two or more" |
---|
2073 | "polarisations")); |
---|
2074 | bool insitu = insitu_; |
---|
2075 | setInsitu(false); |
---|
2076 | CountedPtr< Scantable > pols = getScantable(in, true); |
---|
2077 | setInsitu(insitu); |
---|
2078 | Table& tout = pols->table(); |
---|
2079 | std::string taql = "SELECT FROM $1 WHERE POLNO IN [0,1]"; |
---|
2080 | Table tab = tableCommand(taql, in->table()); |
---|
2081 | if (tab.nrow() == 0 ) |
---|
2082 | throw(AipsError("Could not find any rows with POLNO==0 and POLNO==1")); |
---|
2083 | TableCopy::copyRows(tout, tab); |
---|
2084 | TableVector<uInt> vec(tout, "POLNO"); |
---|
2085 | vec = 0; |
---|
2086 | pols->table_.rwKeywordSet().define("nPol", Int(1)); |
---|
2087 | //pols->table_.rwKeywordSet().define("POLTYPE", String("stokes")); |
---|
2088 | pols->table_.rwKeywordSet().define("POLTYPE", in->getPolType()); |
---|
2089 | std::vector<CountedPtr<Scantable> > vpols; |
---|
2090 | vpols.push_back(pols); |
---|
2091 | CountedPtr< Scantable > out = average(vpols, mask, weight, "SCAN"); |
---|
2092 | return out; |
---|
2093 | } |
---|
2094 | |
---|
2095 | CountedPtr< Scantable > |
---|
2096 | STMath::averageBeams( const CountedPtr< Scantable > & in, |
---|
2097 | const std::vector<bool>& mask, |
---|
2098 | const std::string& weight ) |
---|
2099 | { |
---|
2100 | bool insitu = insitu_; |
---|
2101 | setInsitu(false); |
---|
2102 | CountedPtr< Scantable > beams = getScantable(in, false); |
---|
2103 | setInsitu(insitu); |
---|
2104 | Table& tout = beams->table(); |
---|
2105 | // give all rows the same BEAMNO |
---|
2106 | TableVector<uInt> vec(tout, "BEAMNO"); |
---|
2107 | vec = 0; |
---|
2108 | beams->table_.rwKeywordSet().define("nBeam", Int(1)); |
---|
2109 | std::vector<CountedPtr<Scantable> > vbeams; |
---|
2110 | vbeams.push_back(beams); |
---|
2111 | CountedPtr< Scantable > out = average(vbeams, mask, weight, "SCAN"); |
---|
2112 | return out; |
---|
2113 | } |
---|
2114 | |
---|
2115 | |
---|
2116 | CountedPtr< Scantable > |
---|
2117 | asap::STMath::frequencyAlign( const CountedPtr< Scantable > & in, |
---|
2118 | const std::string & refTime, |
---|
2119 | const std::string & method) |
---|
2120 | { |
---|
2121 | // clone as this is not working insitu |
---|
2122 | bool insitu = insitu_; |
---|
2123 | setInsitu(false); |
---|
2124 | CountedPtr< Scantable > out = getScantable(in, false); |
---|
2125 | setInsitu(insitu); |
---|
2126 | Table& tout = out->table(); |
---|
2127 | // Get reference Epoch to time of first row or given String |
---|
2128 | Unit DAY(String("d")); |
---|
2129 | MEpoch::Ref epochRef(in->getTimeReference()); |
---|
2130 | MEpoch refEpoch; |
---|
2131 | if (refTime.length()>0) { |
---|
2132 | Quantum<Double> qt; |
---|
2133 | if (MVTime::read(qt,refTime)) { |
---|
2134 | MVEpoch mv(qt); |
---|
2135 | refEpoch = MEpoch(mv, epochRef); |
---|
2136 | } else { |
---|
2137 | throw(AipsError("Invalid format for Epoch string")); |
---|
2138 | } |
---|
2139 | } else { |
---|
2140 | refEpoch = in->timeCol_(0); |
---|
2141 | } |
---|
2142 | MPosition refPos = in->getAntennaPosition(); |
---|
2143 | |
---|
2144 | InterpolateArray1D<Double,Float>::InterpolationMethod interp = stringToIMethod(method); |
---|
2145 | /* |
---|
2146 | // Comment from MV. |
---|
2147 | // the following code has been commented out because different FREQ_IDs have to be aligned together even |
---|
2148 | // if the frame doesn't change. So far, lack of this check didn't cause any problems. |
---|
2149 | // test if user frame is different to base frame |
---|
2150 | if ( in->frequencies().getFrameString(true) |
---|
2151 | == in->frequencies().getFrameString(false) ) { |
---|
2152 | throw(AipsError("Can't convert as no output frame has been set" |
---|
2153 | " (use set_freqframe) or it is aligned already.")); |
---|
2154 | } |
---|
2155 | */ |
---|
2156 | MFrequency::Types system = in->frequencies().getFrame(); |
---|
2157 | MVTime mvt(refEpoch.getValue()); |
---|
2158 | String epochout = mvt.string(MVTime::YMD) + String(" (") + refEpoch.getRefString() + String(")"); |
---|
2159 | ostringstream oss; |
---|
2160 | oss << "Aligned at reference Epoch " << epochout |
---|
2161 | << " in frame " << MFrequency::showType(system); |
---|
2162 | pushLog(String(oss)); |
---|
2163 | // set up the iterator |
---|
2164 | Block<String> cols(4); |
---|
2165 | // select by constant direction |
---|
2166 | cols[0] = String("SRCNAME"); |
---|
2167 | cols[1] = String("BEAMNO"); |
---|
2168 | // select by IF ( no of channels varies over this ) |
---|
2169 | cols[2] = String("IFNO"); |
---|
2170 | // select by restfrequency |
---|
2171 | cols[3] = String("MOLECULE_ID"); |
---|
2172 | TableIterator iter(tout, cols); |
---|
2173 | while ( !iter.pastEnd() ) { |
---|
2174 | Table t = iter.table(); |
---|
2175 | MDirection::ROScalarColumn dirCol(t, "DIRECTION"); |
---|
2176 | TableIterator fiter(t, "FREQ_ID"); |
---|
2177 | // determine nchan from the first row. This should work as |
---|
2178 | // we are iterating over BEAMNO and IFNO // we should have constant direction |
---|
2179 | |
---|
2180 | ROArrayColumn<Float> sCol(t, "SPECTRA"); |
---|
2181 | const MDirection direction = dirCol(0); |
---|
2182 | const uInt nchan = sCol(0).nelements(); |
---|
2183 | |
---|
2184 | // skip operations if there is nothing to align |
---|
2185 | if (fiter.pastEnd()) { |
---|
2186 | continue; |
---|
2187 | } |
---|
2188 | |
---|
2189 | Table ftab = fiter.table(); |
---|
2190 | // align all frequency ids with respect to the first encountered id |
---|
2191 | ScalarColumn<uInt> freqidCol(ftab, "FREQ_ID"); |
---|
2192 | // get the SpectralCoordinate for the freqid, which we are iterating over |
---|
2193 | SpectralCoordinate sC = in->frequencies().getSpectralCoordinate(freqidCol(0)); |
---|
2194 | FrequencyAligner<Float> fa( sC, nchan, refEpoch, |
---|
2195 | direction, refPos, system ); |
---|
2196 | // realign the SpectralCoordinate and put into the output Scantable |
---|
2197 | Vector<String> units(1); |
---|
2198 | units = String("Hz"); |
---|
2199 | Bool linear=True; |
---|
2200 | SpectralCoordinate sc2 = fa.alignedSpectralCoordinate(linear); |
---|
2201 | sc2.setWorldAxisUnits(units); |
---|
2202 | const uInt id = out->frequencies().addEntry(sc2.referencePixel()[0], |
---|
2203 | sc2.referenceValue()[0], |
---|
2204 | sc2.increment()[0]); |
---|
2205 | while ( !fiter.pastEnd() ) { |
---|
2206 | ftab = fiter.table(); |
---|
2207 | // spectral coordinate for the current FREQ_ID |
---|
2208 | ScalarColumn<uInt> freqidCol2(ftab, "FREQ_ID"); |
---|
2209 | sC = in->frequencies().getSpectralCoordinate(freqidCol2(0)); |
---|
2210 | // create the "global" abcissa for alignment with same FREQ_ID |
---|
2211 | Vector<Double> abc(nchan); |
---|
2212 | for (uInt i=0; i<nchan; i++) { |
---|
2213 | Double w; |
---|
2214 | sC.toWorld(w,Double(i)); |
---|
2215 | abc[i] = w; |
---|
2216 | } |
---|
2217 | TableVector<uInt> tvec(ftab, "FREQ_ID"); |
---|
2218 | // assign new frequency id to all rows |
---|
2219 | tvec = id; |
---|
2220 | // cache abcissa for same time stamps, so iterate over those |
---|
2221 | TableIterator timeiter(ftab, "TIME"); |
---|
2222 | while ( !timeiter.pastEnd() ) { |
---|
2223 | Table tab = timeiter.table(); |
---|
2224 | ArrayColumn<Float> specCol(tab, "SPECTRA"); |
---|
2225 | ArrayColumn<uChar> flagCol(tab, "FLAGTRA"); |
---|
2226 | MEpoch::ROScalarColumn timeCol(tab, "TIME"); |
---|
2227 | // use align abcissa cache after the first row |
---|
2228 | // these rows should be just be POLNO |
---|
2229 | bool first = true; |
---|
2230 | for (int i=0; i<int(tab.nrow()); ++i) { |
---|
2231 | // input values |
---|
2232 | Vector<uChar> flag = flagCol(i); |
---|
2233 | Vector<Bool> mask(flag.shape()); |
---|
2234 | Vector<Float> specOut, spec; |
---|
2235 | spec = specCol(i); |
---|
2236 | Vector<Bool> maskOut;Vector<uChar> flagOut; |
---|
2237 | convertArray(mask, flag); |
---|
2238 | // alignment |
---|
2239 | Bool ok = fa.align(specOut, maskOut, abc, spec, |
---|
2240 | mask, timeCol(i), !first, |
---|
2241 | interp, False); |
---|
2242 | // back into scantable |
---|
2243 | flagOut.resize(maskOut.nelements()); |
---|
2244 | convertArray(flagOut, maskOut); |
---|
2245 | flagCol.put(i, flagOut); |
---|
2246 | specCol.put(i, specOut); |
---|
2247 | // start abcissa caching |
---|
2248 | first = false; |
---|
2249 | } |
---|
2250 | // next timestamp |
---|
2251 | ++timeiter; |
---|
2252 | } |
---|
2253 | // next FREQ_ID |
---|
2254 | ++fiter; |
---|
2255 | } |
---|
2256 | // next aligner |
---|
2257 | ++iter; |
---|
2258 | } |
---|
2259 | // set this afterwards to ensure we are doing insitu correctly. |
---|
2260 | out->frequencies().setFrame(system, true); |
---|
2261 | return out; |
---|
2262 | } |
---|
2263 | |
---|
2264 | CountedPtr<Scantable> |
---|
2265 | asap::STMath::convertPolarisation( const CountedPtr<Scantable>& in, |
---|
2266 | const std::string & newtype ) |
---|
2267 | { |
---|
2268 | if (in->npol() != 2 && in->npol() != 4) |
---|
2269 | throw(AipsError("Can only convert two or four polarisations.")); |
---|
2270 | if ( in->getPolType() == newtype ) |
---|
2271 | throw(AipsError("No need to convert.")); |
---|
2272 | if ( ! in->selector_.empty() ) |
---|
2273 | throw(AipsError("Can only convert whole scantable. Unset the selection.")); |
---|
2274 | bool insitu = insitu_; |
---|
2275 | setInsitu(false); |
---|
2276 | CountedPtr< Scantable > out = getScantable(in, true); |
---|
2277 | setInsitu(insitu); |
---|
2278 | Table& tout = out->table(); |
---|
2279 | tout.rwKeywordSet().define("POLTYPE", String(newtype)); |
---|
2280 | |
---|
2281 | Block<String> cols(4); |
---|
2282 | cols[0] = "SCANNO"; |
---|
2283 | cols[1] = "CYCLENO"; |
---|
2284 | cols[2] = "BEAMNO"; |
---|
2285 | cols[3] = "IFNO"; |
---|
2286 | TableIterator it(in->originalTable_, cols); |
---|
2287 | String basetype = in->getPolType(); |
---|
2288 | STPol* stpol = STPol::getPolClass(in->factories_, basetype); |
---|
2289 | try { |
---|
2290 | while ( !it.pastEnd() ) { |
---|
2291 | Table tab = it.table(); |
---|
2292 | uInt row = tab.rowNumbers()[0]; |
---|
2293 | stpol->setSpectra(in->getPolMatrix(row)); |
---|
2294 | Float fang,fhand,parang; |
---|
2295 | fang = in->focusTable_.getTotalFeedAngle(in->mfocusidCol_(row)); |
---|
2296 | fhand = in->focusTable_.getFeedHand(in->mfocusidCol_(row)); |
---|
2297 | parang = in->paraCol_(row); |
---|
2298 | /// @todo re-enable this |
---|
2299 | // disable total feed angle to support paralactifying Caswell style |
---|
2300 | stpol->setPhaseCorrections(parang, -parang, fhand); |
---|
2301 | Int npolout = 0; |
---|
2302 | for (uInt i=0; i<tab.nrow(); ++i) { |
---|
2303 | Vector<Float> outvec = stpol->getSpectrum(i, newtype); |
---|
2304 | if ( outvec.nelements() > 0 ) { |
---|
2305 | tout.addRow(); |
---|
2306 | TableCopy::copyRows(tout, tab, tout.nrow()-1, 0, 1); |
---|
2307 | ArrayColumn<Float> sCol(tout,"SPECTRA"); |
---|
2308 | ScalarColumn<uInt> pCol(tout,"POLNO"); |
---|
2309 | sCol.put(tout.nrow()-1 ,outvec); |
---|
2310 | pCol.put(tout.nrow()-1 ,uInt(npolout)); |
---|
2311 | npolout++; |
---|
2312 | } |
---|
2313 | } |
---|
2314 | tout.rwKeywordSet().define("nPol", npolout); |
---|
2315 | ++it; |
---|
2316 | } |
---|
2317 | } catch (AipsError& e) { |
---|
2318 | delete stpol; |
---|
2319 | throw(e); |
---|
2320 | } |
---|
2321 | delete stpol; |
---|
2322 | return out; |
---|
2323 | } |
---|
2324 | |
---|
2325 | CountedPtr< Scantable > |
---|
2326 | asap::STMath::mxExtract( const CountedPtr< Scantable > & in, |
---|
2327 | const std::string & scantype ) |
---|
2328 | { |
---|
2329 | bool insitu = insitu_; |
---|
2330 | setInsitu(false); |
---|
2331 | CountedPtr< Scantable > out = getScantable(in, true); |
---|
2332 | setInsitu(insitu); |
---|
2333 | Table& tout = out->table(); |
---|
2334 | std::string taql = "SELECT FROM $1 WHERE BEAMNO != REFBEAMNO"; |
---|
2335 | if (scantype == "on") { |
---|
2336 | taql = "SELECT FROM $1 WHERE BEAMNO == REFBEAMNO"; |
---|
2337 | } |
---|
2338 | Table tab = tableCommand(taql, in->table()); |
---|
2339 | TableCopy::copyRows(tout, tab); |
---|
2340 | if (scantype == "on") { |
---|
2341 | // re-index SCANNO to 0 |
---|
2342 | TableVector<uInt> vec(tout, "SCANNO"); |
---|
2343 | vec = 0; |
---|
2344 | } |
---|
2345 | return out; |
---|
2346 | } |
---|
2347 | |
---|
2348 | CountedPtr< Scantable > |
---|
2349 | asap::STMath::lagFlag( const CountedPtr< Scantable > & in, |
---|
2350 | double frequency, double width ) |
---|
2351 | { |
---|
2352 | CountedPtr< Scantable > out = getScantable(in, false); |
---|
2353 | Table& tout = out->table(); |
---|
2354 | TableIterator iter(tout, "FREQ_ID"); |
---|
2355 | FFTServer<Float,Complex> ffts; |
---|
2356 | while ( !iter.pastEnd() ) { |
---|
2357 | Table tab = iter.table(); |
---|
2358 | Double rp,rv,inc; |
---|
2359 | ROTableRow row(tab); |
---|
2360 | const TableRecord& rec = row.get(0); |
---|
2361 | uInt freqid = rec.asuInt("FREQ_ID"); |
---|
2362 | out->frequencies().getEntry(rp, rv, inc, freqid); |
---|
2363 | ArrayColumn<Float> specCol(tab, "SPECTRA"); |
---|
2364 | ArrayColumn<uChar> flagCol(tab, "FLAGTRA"); |
---|
2365 | for (int i=0; i<int(tab.nrow()); ++i) { |
---|
2366 | Vector<Float> spec = specCol(i); |
---|
2367 | Vector<uChar> flag = flagCol(i); |
---|
2368 | Int lag0 = Int(spec.nelements()*abs(inc)/(frequency+width)+0.5); |
---|
2369 | Int lag1 = Int(spec.nelements()*abs(inc)/(frequency-width)+0.5); |
---|
2370 | for (int k=0; k < flag.nelements(); ++k ) { |
---|
2371 | if (flag[k] > 0) { |
---|
2372 | spec[k] = 0.0; |
---|
2373 | } |
---|
2374 | } |
---|
2375 | Vector<Complex> lags; |
---|
2376 | ffts.fft0(lags, spec); |
---|
2377 | Int start = max(0, lag0); |
---|
2378 | Int end = min(Int(lags.nelements()-1), lag1); |
---|
2379 | if (start == end) { |
---|
2380 | lags[start] = Complex(0.0); |
---|
2381 | } else { |
---|
2382 | for (int j=start; j <=end ;++j) { |
---|
2383 | lags[j] = Complex(0.0); |
---|
2384 | } |
---|
2385 | } |
---|
2386 | ffts.fft0(spec, lags); |
---|
2387 | specCol.put(i, spec); |
---|
2388 | } |
---|
2389 | ++iter; |
---|
2390 | } |
---|
2391 | return out; |
---|
2392 | } |
---|
2393 | |
---|
2394 | // Averaging spectra with different channel/resolution |
---|
2395 | CountedPtr<Scantable> |
---|
2396 | STMath::new_average( const std::vector<CountedPtr<Scantable> >& in, |
---|
2397 | const bool& compel, |
---|
2398 | const std::vector<bool>& mask, |
---|
2399 | const std::string& weight, |
---|
2400 | const std::string& avmode ) |
---|
2401 | throw ( casa::AipsError ) |
---|
2402 | { |
---|
2403 | if ( avmode == "SCAN" && in.size() != 1 ) |
---|
2404 | throw(AipsError("Can't perform 'SCAN' averaging on multiple tables.\n" |
---|
2405 | "Use merge first.")); |
---|
2406 | |
---|
2407 | // check if OTF observation |
---|
2408 | String obstype = in[0]->getHeader().obstype ; |
---|
2409 | bool otfscan = false ; |
---|
2410 | if ( obstype.find( "OTF" ) != String::npos ) { |
---|
2411 | //cout << "OTF scan" << endl ; |
---|
2412 | otfscan = true ; |
---|
2413 | } |
---|
2414 | |
---|
2415 | CountedPtr<Scantable> out ; // processed result |
---|
2416 | if ( compel ) { |
---|
2417 | std::vector< CountedPtr<Scantable> > newin ; // input for average process |
---|
2418 | uInt insize = in.size() ; // number of input scantables |
---|
2419 | |
---|
2420 | // TEST: do normal average in each table before IF grouping |
---|
2421 | cout << "Do preliminary averaging" << endl ; |
---|
2422 | vector< CountedPtr<Scantable> > tmpin( insize ) ; |
---|
2423 | for ( uInt itable = 0 ; itable < insize ; itable++ ) { |
---|
2424 | vector< CountedPtr<Scantable> > v( 1, in[itable] ) ; |
---|
2425 | tmpin[itable] = average( v, mask, weight, avmode ) ; |
---|
2426 | } |
---|
2427 | |
---|
2428 | // warning |
---|
2429 | cout << "Average spectra with different spectral resolution" << endl ; |
---|
2430 | cout << endl ; |
---|
2431 | |
---|
2432 | // temporarily set coordinfo |
---|
2433 | vector<string> oldinfo( insize ) ; |
---|
2434 | for ( uInt itable = 0 ; itable < insize ; itable++ ) { |
---|
2435 | vector<string> coordinfo = in[itable]->getCoordInfo() ; |
---|
2436 | oldinfo[itable] = coordinfo[0] ; |
---|
2437 | coordinfo[0] = "Hz" ; |
---|
2438 | tmpin[itable]->setCoordInfo( coordinfo ) ; |
---|
2439 | } |
---|
2440 | |
---|
2441 | // columns |
---|
2442 | ScalarColumn<uInt> freqIDCol ; |
---|
2443 | ScalarColumn<uInt> ifnoCol ; |
---|
2444 | ScalarColumn<uInt> scannoCol ; |
---|
2445 | |
---|
2446 | |
---|
2447 | // check IF frequency coverage |
---|
2448 | // freqid: list of FREQ_ID, which is used, in each table |
---|
2449 | // iffreq: list of minimum and maximum frequency for each FREQ_ID in |
---|
2450 | // each table |
---|
2451 | // freqid[insize][numIF] |
---|
2452 | // freqid: [[id00, id01, ...], |
---|
2453 | // [id10, id11, ...], |
---|
2454 | // ... |
---|
2455 | // [idn0, idn1, ...]] |
---|
2456 | // iffreq[insize][numIF*2] |
---|
2457 | // iffreq: [[min_id00, max_id00, min_id01, max_id01, ...], |
---|
2458 | // [min_id10, max_id10, min_id11, max_id11, ...], |
---|
2459 | // ... |
---|
2460 | // [min_idn0, max_idn0, min_idn1, max_idn1, ...]] |
---|
2461 | //cout << "Check IF settings in each table" << endl ; |
---|
2462 | vector< vector<uInt> > freqid( insize ); |
---|
2463 | vector< vector<double> > iffreq( insize ) ; |
---|
2464 | for ( uInt itable = 0 ; itable < insize ; itable++ ) { |
---|
2465 | uInt rows = tmpin[itable]->nrow() ; |
---|
2466 | uInt freqnrows = tmpin[itable]->frequencies().table().nrow() ; |
---|
2467 | for ( uInt irow = 0 ; irow < rows ; irow++ ) { |
---|
2468 | if ( freqid[itable].size() == freqnrows ) { |
---|
2469 | break ; |
---|
2470 | } |
---|
2471 | else { |
---|
2472 | freqIDCol.attach( tmpin[itable]->table(), "FREQ_ID" ) ; |
---|
2473 | ifnoCol.attach( tmpin[itable]->table(), "IFNO" ) ; |
---|
2474 | uInt id = freqIDCol( irow ) ; |
---|
2475 | if ( freqid[itable].size() == 0 || count( freqid[itable].begin(), freqid[itable].end(), id ) == 0 ) { |
---|
2476 | //cout << "itable = " << itable << ": IF " << id << " is included in the list" << endl ; |
---|
2477 | vector<double> abcissa = tmpin[itable]->getAbcissa( irow ) ; |
---|
2478 | freqid[itable].push_back( id ) ; |
---|
2479 | iffreq[itable].push_back( abcissa[0] - 0.5 * ( abcissa[1] - abcissa[0] ) ) ; |
---|
2480 | iffreq[itable].push_back( abcissa[abcissa.size()-1] + 0.5 * ( abcissa[1] - abcissa[0] ) ) ; |
---|
2481 | } |
---|
2482 | } |
---|
2483 | } |
---|
2484 | } |
---|
2485 | |
---|
2486 | // debug |
---|
2487 | //cout << "IF settings summary:" << endl ; |
---|
2488 | //for ( uInt i = 0 ; i < freqid.size() ; i++ ) { |
---|
2489 | //cout << " Table" << i << endl ; |
---|
2490 | //for ( uInt j = 0 ; j < freqid[i].size() ; j++ ) { |
---|
2491 | //cout << " id = " << freqid[i][j] << " (min,max) = (" << iffreq[i][2*j] << "," << iffreq[i][2*j+1] << ")" << endl ; |
---|
2492 | //} |
---|
2493 | //} |
---|
2494 | //cout << endl ; |
---|
2495 | |
---|
2496 | // IF grouping based on their frequency coverage |
---|
2497 | // ifgrp: list of table index and FREQ_ID for all members in each IF group |
---|
2498 | // ifgfreq: list of minimum and maximum frequency in each IF group |
---|
2499 | // ifgrp[numgrp][nummember*2] |
---|
2500 | // ifgrp: [[table00, freqrow00, table01, freqrow01, ...], |
---|
2501 | // [table10, freqrow10, table11, freqrow11, ...], |
---|
2502 | // ... |
---|
2503 | // [tablen0, freqrown0, tablen1, freqrown1, ...]] |
---|
2504 | // ifgfreq[numgrp*2] |
---|
2505 | // ifgfreq: [min0_grp0, max0_grp0, min1_grp1, max1_grp1, ...] |
---|
2506 | //cout << "IF grouping based on their frequency coverage" << endl ; |
---|
2507 | vector< vector<uInt> > ifgrp ; |
---|
2508 | vector<double> ifgfreq ; |
---|
2509 | |
---|
2510 | // parameter for IF grouping |
---|
2511 | // groupmode = OR retrieve all region |
---|
2512 | // AND only retrieve overlaped region |
---|
2513 | //string groupmode = "AND" ; |
---|
2514 | string groupmode = "OR" ; |
---|
2515 | uInt sizecr = 0 ; |
---|
2516 | if ( groupmode == "AND" ) |
---|
2517 | sizecr = 2 ; |
---|
2518 | else if ( groupmode == "OR" ) |
---|
2519 | sizecr = 0 ; |
---|
2520 | |
---|
2521 | vector<double> sortedfreq ; |
---|
2522 | for ( uInt i = 0 ; i < iffreq.size() ; i++ ) { |
---|
2523 | for ( uInt j = 0 ; j < iffreq[i].size() ; j++ ) { |
---|
2524 | if ( count( sortedfreq.begin(), sortedfreq.end(), iffreq[i][j] ) == 0 ) |
---|
2525 | sortedfreq.push_back( iffreq[i][j] ) ; |
---|
2526 | } |
---|
2527 | } |
---|
2528 | sort( sortedfreq.begin(), sortedfreq.end() ) ; |
---|
2529 | for ( vector<double>::iterator i = sortedfreq.begin() ; i != sortedfreq.end()-1 ; i++ ) { |
---|
2530 | ifgfreq.push_back( *i ) ; |
---|
2531 | ifgfreq.push_back( *(i+1) ) ; |
---|
2532 | } |
---|
2533 | ifgrp.resize( ifgfreq.size()/2 ) ; |
---|
2534 | for ( uInt itable = 0 ; itable < insize ; itable++ ) { |
---|
2535 | for ( uInt iif = 0 ; iif < freqid[itable].size() ; iif++ ) { |
---|
2536 | double range0 = iffreq[itable][2*iif] ; |
---|
2537 | double range1 = iffreq[itable][2*iif+1] ; |
---|
2538 | for ( uInt j = 0 ; j < ifgrp.size() ; j++ ) { |
---|
2539 | double fmin = max( range0, ifgfreq[2*j] ) ; |
---|
2540 | double fmax = min( range1, ifgfreq[2*j+1] ) ; |
---|
2541 | if ( fmin < fmax ) { |
---|
2542 | ifgrp[j].push_back( itable ) ; |
---|
2543 | ifgrp[j].push_back( freqid[itable][iif] ) ; |
---|
2544 | } |
---|
2545 | } |
---|
2546 | } |
---|
2547 | } |
---|
2548 | vector< vector<uInt> >::iterator fiter = ifgrp.begin() ; |
---|
2549 | vector<double>::iterator giter = ifgfreq.begin() ; |
---|
2550 | while( fiter != ifgrp.end() ) { |
---|
2551 | if ( fiter->size() <= sizecr ) { |
---|
2552 | fiter = ifgrp.erase( fiter ) ; |
---|
2553 | giter = ifgfreq.erase( giter ) ; |
---|
2554 | giter = ifgfreq.erase( giter ) ; |
---|
2555 | } |
---|
2556 | else { |
---|
2557 | fiter++ ; |
---|
2558 | advance( giter, 2 ) ; |
---|
2559 | } |
---|
2560 | } |
---|
2561 | |
---|
2562 | // Grouping continuous IF groups (without frequency gap) |
---|
2563 | // freqgrp: list of IF group indexes in each frequency group |
---|
2564 | // freqrange: list of minimum and maximum frequency in each frequency group |
---|
2565 | // freqgrp[numgrp][nummember] |
---|
2566 | // freqgrp: [[ifgrp00, ifgrp01, ifgrp02, ...], |
---|
2567 | // [ifgrp10, ifgrp11, ifgrp12, ...], |
---|
2568 | // ... |
---|
2569 | // [ifgrpn0, ifgrpn1, ifgrpn2, ...]] |
---|
2570 | // freqrange[numgrp*2] |
---|
2571 | // freqrange: [min_grp0, max_grp0, min_grp1, max_grp1, ...] |
---|
2572 | vector< vector<uInt> > freqgrp ; |
---|
2573 | double freqrange = 0.0 ; |
---|
2574 | uInt grpnum = 0 ; |
---|
2575 | for ( uInt i = 0 ; i < ifgrp.size() ; i++ ) { |
---|
2576 | // Assumed that ifgfreq was sorted |
---|
2577 | if ( grpnum != 0 && freqrange == ifgfreq[2*i] ) { |
---|
2578 | freqgrp[grpnum-1].push_back( i ) ; |
---|
2579 | } |
---|
2580 | else { |
---|
2581 | vector<uInt> grp0( 1, i ) ; |
---|
2582 | freqgrp.push_back( grp0 ) ; |
---|
2583 | grpnum++ ; |
---|
2584 | } |
---|
2585 | freqrange = ifgfreq[2*i+1] ; |
---|
2586 | } |
---|
2587 | |
---|
2588 | |
---|
2589 | // print IF groups |
---|
2590 | cout << "IF Group summary: " << endl ; |
---|
2591 | cout << " GROUP_ID [FREQ_MIN, FREQ_MAX]: (TABLE_ID, FREQ_ID)" << endl ; |
---|
2592 | for ( uInt i = 0 ; i < ifgrp.size() ; i++ ) { |
---|
2593 | cout << " GROUP " << setw( 2 ) << i << " [" << ifgfreq[2*i] << "," << ifgfreq[2*i+1] << "]: " ; |
---|
2594 | for ( uInt j = 0 ; j < ifgrp[i].size()/2 ; j++ ) { |
---|
2595 | cout << "(" << ifgrp[i][2*j] << "," << ifgrp[i][2*j+1] << ") " ; |
---|
2596 | } |
---|
2597 | cout << endl ; |
---|
2598 | } |
---|
2599 | cout << endl ; |
---|
2600 | |
---|
2601 | // print frequency group |
---|
2602 | cout << "Frequency Group summary: " << endl ; |
---|
2603 | cout << " GROUP_ID [FREQ_MIN, FREQ_MAX]: IF_GROUP_ID" << endl ; |
---|
2604 | for ( uInt i = 0 ; i < freqgrp.size() ; i++ ) { |
---|
2605 | cout << " GROUP " << setw( 2 ) << i << " [" << ifgfreq[2*freqgrp[i][0]] << "," << ifgfreq[2*freqgrp[i][freqgrp[i].size()-1]+1] << "]: " ; |
---|
2606 | for ( uInt j = 0 ; j < freqgrp[i].size() ; j++ ) { |
---|
2607 | cout << freqgrp[i][j] << " " ; |
---|
2608 | } |
---|
2609 | cout << endl ; |
---|
2610 | } |
---|
2611 | cout << endl ; |
---|
2612 | |
---|
2613 | // membership check |
---|
2614 | // groups: list of IF group indexes whose frequency range overlaps with |
---|
2615 | // that of each table and IF |
---|
2616 | // groups[numtable][numIF][nummembership] |
---|
2617 | // groups: [[[grp, grp,...], [grp, grp,...],...], |
---|
2618 | // [[grp, grp,...], [grp, grp,...],...], |
---|
2619 | // ... |
---|
2620 | // [[grp, grp,...], [grp, grp,...],...]] |
---|
2621 | vector< vector< vector<uInt> > > groups( insize ) ; |
---|
2622 | for ( uInt i = 0 ; i < insize ; i++ ) { |
---|
2623 | groups[i].resize( freqid[i].size() ) ; |
---|
2624 | } |
---|
2625 | for ( uInt igrp = 0 ; igrp < ifgrp.size() ; igrp++ ) { |
---|
2626 | for ( uInt imem = 0 ; imem < ifgrp[igrp].size()/2 ; imem++ ) { |
---|
2627 | uInt tableid = ifgrp[igrp][2*imem] ; |
---|
2628 | vector<uInt>::iterator iter = find( freqid[tableid].begin(), freqid[tableid].end(), ifgrp[igrp][2*imem+1] ) ; |
---|
2629 | if ( iter != freqid[tableid].end() ) { |
---|
2630 | uInt rowid = distance( freqid[tableid].begin(), iter ) ; |
---|
2631 | groups[tableid][rowid].push_back( igrp ) ; |
---|
2632 | } |
---|
2633 | } |
---|
2634 | } |
---|
2635 | |
---|
2636 | // print membership |
---|
2637 | //for ( uInt i = 0 ; i < insize ; i++ ) { |
---|
2638 | //cout << "Table " << i << endl ; |
---|
2639 | //for ( uInt j = 0 ; j < groups[i].size() ; j++ ) { |
---|
2640 | //cout << " FREQ_ID " << setw( 2 ) << freqid[i][j] << ": " ; |
---|
2641 | //for ( uInt k = 0 ; k < groups[i][j].size() ; k++ ) { |
---|
2642 | //cout << setw( 2 ) << groups[i][j][k] << " " ; |
---|
2643 | //} |
---|
2644 | //cout << endl ; |
---|
2645 | //} |
---|
2646 | //} |
---|
2647 | |
---|
2648 | // set back coordinfo |
---|
2649 | for ( uInt itable = 0 ; itable < insize ; itable++ ) { |
---|
2650 | vector<string> coordinfo = tmpin[itable]->getCoordInfo() ; |
---|
2651 | coordinfo[0] = oldinfo[itable] ; |
---|
2652 | tmpin[itable]->setCoordInfo( coordinfo ) ; |
---|
2653 | } |
---|
2654 | |
---|
2655 | // Create additional table if needed |
---|
2656 | bool oldInsitu = insitu_ ; |
---|
2657 | setInsitu( false ) ; |
---|
2658 | vector< vector<uInt> > addrow( insize ) ; |
---|
2659 | vector<uInt> addtable( insize, 0 ) ; |
---|
2660 | vector<uInt> newtableids( insize ) ; |
---|
2661 | vector<uInt> newifids( insize, 0 ) ; |
---|
2662 | for ( uInt itable = 0 ; itable < insize ; itable++ ) { |
---|
2663 | //cout << "Table " << setw(2) << itable << ": " ; |
---|
2664 | for ( uInt ifrow = 0 ; ifrow < groups[itable].size() ; ifrow++ ) { |
---|
2665 | addrow[itable].push_back( groups[itable][ifrow].size()-1 ) ; |
---|
2666 | //cout << addrow[itable][ifrow] << " " ; |
---|
2667 | } |
---|
2668 | addtable[itable] = *max_element( addrow[itable].begin(), addrow[itable].end() ) ; |
---|
2669 | //cout << "(" << addtable[itable] << ")" << endl ; |
---|
2670 | } |
---|
2671 | newin.resize( insize ) ; |
---|
2672 | copy( tmpin.begin(), tmpin.end(), newin.begin() ) ; |
---|
2673 | for ( uInt i = 0 ; i < insize ; i++ ) { |
---|
2674 | newtableids[i] = i ; |
---|
2675 | } |
---|
2676 | for ( uInt itable = 0 ; itable < insize ; itable++ ) { |
---|
2677 | for ( uInt iadd = 0 ; iadd < addtable[itable] ; iadd++ ) { |
---|
2678 | CountedPtr<Scantable> add = getScantable( newin[itable], false ) ; |
---|
2679 | vector<int> freqidlist ; |
---|
2680 | for ( uInt i = 0 ; i < groups[itable].size() ; i++ ) { |
---|
2681 | if ( groups[itable][i].size() > iadd + 1 ) { |
---|
2682 | freqidlist.push_back( freqid[itable][i] ) ; |
---|
2683 | } |
---|
2684 | } |
---|
2685 | stringstream taqlstream ; |
---|
2686 | taqlstream << "SELECT FROM $1 WHERE FREQ_ID IN [" ; |
---|
2687 | for ( uInt i = 0 ; i < freqidlist.size() ; i++ ) { |
---|
2688 | taqlstream << i ; |
---|
2689 | if ( i < freqidlist.size() - 1 ) |
---|
2690 | taqlstream << "," ; |
---|
2691 | else |
---|
2692 | taqlstream << "]" ; |
---|
2693 | } |
---|
2694 | string taql = taqlstream.str() ; |
---|
2695 | //cout << "taql = " << taql << endl ; |
---|
2696 | STSelector selector = STSelector() ; |
---|
2697 | selector.setTaQL( taql ) ; |
---|
2698 | add->setSelection( selector ) ; |
---|
2699 | newin.push_back( add ) ; |
---|
2700 | newtableids.push_back( itable ) ; |
---|
2701 | newifids.push_back( iadd + 1 ) ; |
---|
2702 | } |
---|
2703 | } |
---|
2704 | |
---|
2705 | // udpate ifgrp |
---|
2706 | for ( uInt itable = 0 ; itable < insize ; itable++ ) { |
---|
2707 | for ( uInt iadd = 0 ; iadd < addtable[itable] ; iadd++ ) { |
---|
2708 | for ( uInt ifrow = 0 ; ifrow < groups[itable].size() ; ifrow++ ) { |
---|
2709 | if ( groups[itable][ifrow].size() > iadd + 1 ) { |
---|
2710 | uInt igrp = groups[itable][ifrow][iadd+1] ; |
---|
2711 | for ( uInt imem = 0 ; imem < ifgrp[igrp].size()/2 ; imem++ ) { |
---|
2712 | if ( ifgrp[igrp][2*imem] == newtableids[iadd+insize] && ifgrp[igrp][2*imem+1] == freqid[newtableids[iadd+insize]][ifrow] ) { |
---|
2713 | ifgrp[igrp][2*imem] = insize + iadd ; |
---|
2714 | } |
---|
2715 | } |
---|
2716 | } |
---|
2717 | } |
---|
2718 | } |
---|
2719 | } |
---|
2720 | |
---|
2721 | // print IF groups again for debug |
---|
2722 | //cout << "IF Group summary: " << endl ; |
---|
2723 | //cout << " GROUP_ID [FREQ_MIN, FREQ_MAX]: (TABLE_ID, FREQ_ID)" << endl ; |
---|
2724 | //for ( uInt i = 0 ; i < ifgrp.size() ; i++ ) { |
---|
2725 | //cout << " GROUP " << setw( 2 ) << i << " [" << ifgfreq[2*i] << "," << ifgfreq[2*i+1] << "]: " ; |
---|
2726 | //for ( uInt j = 0 ; j < ifgrp[i].size()/2 ; j++ ) { |
---|
2727 | //cout << "(" << ifgrp[i][2*j] << "," << ifgrp[i][2*j+1] << ") " ; |
---|
2728 | //} |
---|
2729 | //cout << endl ; |
---|
2730 | //} |
---|
2731 | //cout << endl ; |
---|
2732 | |
---|
2733 | // reset SCANNO and IFNO/FREQ_ID: IF is reset by the result of sortation |
---|
2734 | cout << "All scan number is set to 0" << endl ; |
---|
2735 | //cout << "All IF number is set to IF group index" << endl ; |
---|
2736 | cout << endl ; |
---|
2737 | insize = newin.size() ; |
---|
2738 | for ( uInt itable = 0 ; itable < insize ; itable++ ) { |
---|
2739 | uInt rows = newin[itable]->nrow() ; |
---|
2740 | Table &tmpt = newin[itable]->table() ; |
---|
2741 | freqIDCol.attach( tmpt, "FREQ_ID" ) ; |
---|
2742 | scannoCol.attach( tmpt, "SCANNO" ) ; |
---|
2743 | ifnoCol.attach( tmpt, "IFNO" ) ; |
---|
2744 | for ( uInt irow=0 ; irow < rows ; irow++ ) { |
---|
2745 | scannoCol.put( irow, 0 ) ; |
---|
2746 | uInt freqID = freqIDCol( irow ) ; |
---|
2747 | vector<uInt>::iterator iter = find( freqid[newtableids[itable]].begin(), freqid[newtableids[itable]].end(), freqID ) ; |
---|
2748 | if ( iter != freqid[newtableids[itable]].end() ) { |
---|
2749 | uInt index = distance( freqid[newtableids[itable]].begin(), iter ) ; |
---|
2750 | ifnoCol.put( irow, groups[newtableids[itable]][index][newifids[itable]] ) ; |
---|
2751 | } |
---|
2752 | else { |
---|
2753 | throw(AipsError("IF grouping was wrong in additional tables.")) ; |
---|
2754 | } |
---|
2755 | } |
---|
2756 | } |
---|
2757 | oldinfo.resize( insize ) ; |
---|
2758 | setInsitu( oldInsitu ) ; |
---|
2759 | |
---|
2760 | // temporarily set coordinfo |
---|
2761 | for ( uInt itable = 0 ; itable < insize ; itable++ ) { |
---|
2762 | vector<string> coordinfo = newin[itable]->getCoordInfo() ; |
---|
2763 | oldinfo[itable] = coordinfo[0] ; |
---|
2764 | coordinfo[0] = "Hz" ; |
---|
2765 | newin[itable]->setCoordInfo( coordinfo ) ; |
---|
2766 | } |
---|
2767 | |
---|
2768 | // save column values in the vector |
---|
2769 | vector< vector<uInt> > freqTableIdVec( insize ) ; |
---|
2770 | vector< vector<uInt> > freqIdVec( insize ) ; |
---|
2771 | vector< vector<uInt> > ifNoVec( insize ) ; |
---|
2772 | for ( uInt itable = 0 ; itable < insize ; itable++ ) { |
---|
2773 | ScalarColumn<uInt> freqIDs ; |
---|
2774 | freqIDs.attach( newin[itable]->frequencies().table(), "ID" ) ; |
---|
2775 | ifnoCol.attach( newin[itable]->table(), "IFNO" ) ; |
---|
2776 | freqIDCol.attach( newin[itable]->table(), "FREQ_ID" ) ; |
---|
2777 | for ( uInt irow = 0 ; irow < newin[itable]->frequencies().table().nrow() ; irow++ ) { |
---|
2778 | freqTableIdVec[itable].push_back( freqIDs( irow ) ) ; |
---|
2779 | } |
---|
2780 | for ( uInt irow = 0 ; irow < newin[itable]->table().nrow() ; irow++ ) { |
---|
2781 | freqIdVec[itable].push_back( freqIDCol( irow ) ) ; |
---|
2782 | ifNoVec[itable].push_back( ifnoCol( irow ) ) ; |
---|
2783 | } |
---|
2784 | } |
---|
2785 | |
---|
2786 | // reset spectra and flagtra: pick up common part of frequency coverage |
---|
2787 | //cout << "Pick common frequency range and align resolution" << endl ; |
---|
2788 | for ( uInt itable = 0 ; itable < insize ; itable++ ) { |
---|
2789 | uInt rows = newin[itable]->nrow() ; |
---|
2790 | int nminchan = -1 ; |
---|
2791 | int nmaxchan = -1 ; |
---|
2792 | vector<uInt> freqIdUpdate ; |
---|
2793 | for ( uInt irow = 0 ; irow < rows ; irow++ ) { |
---|
2794 | uInt ifno = ifNoVec[itable][irow] ; // IFNO is reset by group index |
---|
2795 | double minfreq = ifgfreq[2*ifno] ; |
---|
2796 | double maxfreq = ifgfreq[2*ifno+1] ; |
---|
2797 | //cout << "frequency range: [" << minfreq << "," << maxfreq << "]" << endl ; |
---|
2798 | vector<double> abcissa = newin[itable]->getAbcissa( irow ) ; |
---|
2799 | int nchan = abcissa.size() ; |
---|
2800 | double resol = abcissa[1] - abcissa[0] ; |
---|
2801 | //cout << "abcissa range : [" << abcissa[0] << "," << abcissa[nchan-1] << "]" << endl ; |
---|
2802 | if ( minfreq <= abcissa[0] ) |
---|
2803 | nminchan = 0 ; |
---|
2804 | else { |
---|
2805 | //double cfreq = ( minfreq - abcissa[0] ) / resol ; |
---|
2806 | double cfreq = ( minfreq - abcissa[0] + 0.5 * resol ) / resol ; |
---|
2807 | nminchan = int(cfreq) + ( ( cfreq - int(cfreq) <= 0.5 ) ? 0 : 1 ) ; |
---|
2808 | } |
---|
2809 | if ( maxfreq >= abcissa[abcissa.size()-1] ) |
---|
2810 | nmaxchan = abcissa.size() - 1 ; |
---|
2811 | else { |
---|
2812 | //double cfreq = ( abcissa[abcissa.size()-1] - maxfreq ) / resol ; |
---|
2813 | double cfreq = ( abcissa[abcissa.size()-1] - maxfreq + 0.5 * resol ) / resol ; |
---|
2814 | nmaxchan = abcissa.size() - 1 - int(cfreq) - ( ( cfreq - int(cfreq) >= 0.5 ) ? 1 : 0 ) ; |
---|
2815 | } |
---|
2816 | //cout << "channel range (" << irow << "): [" << nminchan << "," << nmaxchan << "]" << endl ; |
---|
2817 | if ( nmaxchan > nminchan ) { |
---|
2818 | newin[itable]->reshapeSpectrum( nminchan, nmaxchan, irow ) ; |
---|
2819 | int newchan = nmaxchan - nminchan + 1 ; |
---|
2820 | if ( count( freqIdUpdate.begin(), freqIdUpdate.end(), freqIdVec[itable][irow] ) == 0 && newchan < nchan ) |
---|
2821 | freqIdUpdate.push_back( freqIdVec[itable][irow] ) ; |
---|
2822 | } |
---|
2823 | else { |
---|
2824 | throw(AipsError("Failed to pick up common part of frequency range.")) ; |
---|
2825 | } |
---|
2826 | } |
---|
2827 | for ( uInt i = 0 ; i < freqIdUpdate.size() ; i++ ) { |
---|
2828 | uInt freqId = freqIdUpdate[i] ; |
---|
2829 | Double refpix ; |
---|
2830 | Double refval ; |
---|
2831 | Double increment ; |
---|
2832 | |
---|
2833 | // update row |
---|
2834 | newin[itable]->frequencies().getEntry( refpix, refval, increment, freqId ) ; |
---|
2835 | refval = refval - ( refpix - nminchan ) * increment ; |
---|
2836 | refpix = 0 ; |
---|
2837 | newin[itable]->frequencies().setEntry( refpix, refval, increment, freqId ) ; |
---|
2838 | } |
---|
2839 | } |
---|
2840 | |
---|
2841 | |
---|
2842 | // reset spectra and flagtra: align spectral resolution |
---|
2843 | //cout << "Align spectral resolution" << endl ; |
---|
2844 | // gmaxdnu: the coarsest frequency resolution in the frequency group |
---|
2845 | // gmemid: member index that have a resolution equal to gmaxdnu |
---|
2846 | // gmaxdnu[numfreqgrp] |
---|
2847 | // gmaxdnu: [dnu0, dnu1, ...] |
---|
2848 | // gmemid[numfreqgrp] |
---|
2849 | // gmemid: [id0, id1, ...] |
---|
2850 | vector<double> gmaxdnu( freqgrp.size(), 0.0 ) ; |
---|
2851 | vector<uInt> gmemid( freqgrp.size(), 0 ) ; |
---|
2852 | for ( uInt igrp = 0 ; igrp < ifgrp.size() ; igrp++ ) { |
---|
2853 | double maxdnu = 0.0 ; // maximum (coarsest) frequency resolution |
---|
2854 | int minchan = INT_MAX ; // minimum channel number |
---|
2855 | Double refpixref = -1 ; // reference of 'reference pixel' |
---|
2856 | Double refvalref = -1 ; // reference of 'reference frequency' |
---|
2857 | Double refinc = -1 ; // reference frequency resolution |
---|
2858 | uInt refreqid ; |
---|
2859 | uInt reftable = INT_MAX; |
---|
2860 | // process only if group member > 1 |
---|
2861 | if ( ifgrp[igrp].size() > 2 ) { |
---|
2862 | // find minchan and maxdnu in each group |
---|
2863 | for ( uInt imem = 0 ; imem < ifgrp[igrp].size()/2 ; imem++ ) { |
---|
2864 | uInt tableid = ifgrp[igrp][2*imem] ; |
---|
2865 | uInt rowid = ifgrp[igrp][2*imem+1] ; |
---|
2866 | vector<uInt>::iterator iter = find( freqIdVec[tableid].begin(), freqIdVec[tableid].end(), rowid ) ; |
---|
2867 | if ( iter != freqIdVec[tableid].end() ) { |
---|
2868 | uInt index = distance( freqIdVec[tableid].begin(), iter ) ; |
---|
2869 | vector<double> abcissa = newin[tableid]->getAbcissa( index ) ; |
---|
2870 | int nchan = abcissa.size() ; |
---|
2871 | double dnu = abcissa[1] - abcissa[0] ; |
---|
2872 | //cout << "GROUP " << igrp << " (" << tableid << "," << rowid << "): nchan = " << nchan << " (minchan = " << minchan << ")" << endl ; |
---|
2873 | if ( nchan < minchan ) { |
---|
2874 | minchan = nchan ; |
---|
2875 | maxdnu = dnu ; |
---|
2876 | newin[tableid]->frequencies().getEntry( refpixref, refvalref, refinc, rowid ) ; |
---|
2877 | refreqid = rowid ; |
---|
2878 | reftable = tableid ; |
---|
2879 | } |
---|
2880 | } |
---|
2881 | } |
---|
2882 | // regrid spectra in each group |
---|
2883 | cout << "GROUP " << igrp << endl ; |
---|
2884 | cout << " Channel number is adjusted to " << minchan << endl ; |
---|
2885 | cout << " Corresponding frequency resolution is " << maxdnu << "Hz" << endl ; |
---|
2886 | for ( uInt imem = 0 ; imem < ifgrp[igrp].size()/2 ; imem++ ) { |
---|
2887 | uInt tableid = ifgrp[igrp][2*imem] ; |
---|
2888 | uInt rowid = ifgrp[igrp][2*imem+1] ; |
---|
2889 | freqIDCol.attach( newin[tableid]->table(), "FREQ_ID" ) ; |
---|
2890 | //cout << "tableid = " << tableid << " rowid = " << rowid << ": " << endl ; |
---|
2891 | //cout << " regridChannel applied to " ; |
---|
2892 | if ( tableid != reftable ) |
---|
2893 | refreqid = newin[tableid]->frequencies().addEntry( refpixref, refvalref, refinc ) ; |
---|
2894 | for ( uInt irow = 0 ; irow < newin[tableid]->table().nrow() ; irow++ ) { |
---|
2895 | uInt tfreqid = freqIdVec[tableid][irow] ; |
---|
2896 | if ( tfreqid == rowid ) { |
---|
2897 | //cout << irow << " " ; |
---|
2898 | newin[tableid]->regridChannel( minchan, maxdnu, irow ) ; |
---|
2899 | freqIDCol.put( irow, refreqid ) ; |
---|
2900 | freqIdVec[tableid][irow] = refreqid ; |
---|
2901 | } |
---|
2902 | } |
---|
2903 | //cout << endl ; |
---|
2904 | } |
---|
2905 | } |
---|
2906 | else { |
---|
2907 | uInt tableid = ifgrp[igrp][0] ; |
---|
2908 | uInt rowid = ifgrp[igrp][1] ; |
---|
2909 | vector<uInt>::iterator iter = find( freqIdVec[tableid].begin(), freqIdVec[tableid].end(), rowid ) ; |
---|
2910 | if ( iter != freqIdVec[tableid].end() ) { |
---|
2911 | uInt index = distance( freqIdVec[tableid].begin(), iter ) ; |
---|
2912 | vector<double> abcissa = newin[tableid]->getAbcissa( index ) ; |
---|
2913 | minchan = abcissa.size() ; |
---|
2914 | maxdnu = abcissa[1] - abcissa[0] ; |
---|
2915 | } |
---|
2916 | } |
---|
2917 | for ( uInt i = 0 ; i < freqgrp.size() ; i++ ) { |
---|
2918 | if ( count( freqgrp[i].begin(), freqgrp[i].end(), igrp ) > 0 ) { |
---|
2919 | if ( maxdnu > gmaxdnu[i] ) { |
---|
2920 | gmaxdnu[i] = maxdnu ; |
---|
2921 | gmemid[i] = igrp ; |
---|
2922 | } |
---|
2923 | break ; |
---|
2924 | } |
---|
2925 | } |
---|
2926 | } |
---|
2927 | cout << endl ; |
---|
2928 | |
---|
2929 | // set back coordinfo |
---|
2930 | for ( uInt itable = 0 ; itable < insize ; itable++ ) { |
---|
2931 | vector<string> coordinfo = newin[itable]->getCoordInfo() ; |
---|
2932 | coordinfo[0] = oldinfo[itable] ; |
---|
2933 | newin[itable]->setCoordInfo( coordinfo ) ; |
---|
2934 | } |
---|
2935 | |
---|
2936 | // accumulate all rows into the first table |
---|
2937 | // NOTE: assumed in.size() = 1 |
---|
2938 | vector< CountedPtr<Scantable> > tmp( 1 ) ; |
---|
2939 | if ( newin.size() == 1 ) |
---|
2940 | tmp[0] = newin[0] ; |
---|
2941 | else |
---|
2942 | tmp[0] = merge( newin ) ; |
---|
2943 | |
---|
2944 | //return tmp[0] ; |
---|
2945 | |
---|
2946 | // average |
---|
2947 | CountedPtr<Scantable> tmpout = average( tmp, mask, weight, avmode ) ; |
---|
2948 | |
---|
2949 | //return tmpout ; |
---|
2950 | |
---|
2951 | // combine frequency group |
---|
2952 | cout << "Combine spectra based on frequency grouping" << endl ; |
---|
2953 | cout << "IFNO is renumbered as frequency group ID (see above)" << endl ; |
---|
2954 | vector<string> coordinfo = tmpout->getCoordInfo() ; |
---|
2955 | oldinfo[0] = coordinfo[0] ; |
---|
2956 | coordinfo[0] = "Hz" ; |
---|
2957 | tmpout->setCoordInfo( coordinfo ) ; |
---|
2958 | // create proformas of output table |
---|
2959 | stringstream taqlstream ; |
---|
2960 | taqlstream << "SELECT FROM $1 WHERE IFNO IN [" ; |
---|
2961 | for ( uInt i = 0 ; i < gmemid.size() ; i++ ) { |
---|
2962 | taqlstream << gmemid[i] ; |
---|
2963 | if ( i < gmemid.size() - 1 ) |
---|
2964 | taqlstream << "," ; |
---|
2965 | else |
---|
2966 | taqlstream << "]" ; |
---|
2967 | } |
---|
2968 | string taql = taqlstream.str() ; |
---|
2969 | //cout << "taql = " << taql << endl ; |
---|
2970 | STSelector selector = STSelector() ; |
---|
2971 | selector.setTaQL( taql ) ; |
---|
2972 | oldInsitu = insitu_ ; |
---|
2973 | setInsitu( false ) ; |
---|
2974 | out = getScantable( tmpout, false ) ; |
---|
2975 | setInsitu( oldInsitu ) ; |
---|
2976 | out->setSelection( selector ) ; |
---|
2977 | // regrid rows |
---|
2978 | ifnoCol.attach( tmpout->table(), "IFNO" ) ; |
---|
2979 | for ( uInt irow = 0 ; irow < tmpout->table().nrow() ; irow++ ) { |
---|
2980 | uInt ifno = ifnoCol( irow ) ; |
---|
2981 | for ( uInt igrp = 0 ; igrp < freqgrp.size() ; igrp++ ) { |
---|
2982 | if ( count( freqgrp[igrp].begin(), freqgrp[igrp].end(), ifno ) > 0 ) { |
---|
2983 | vector<double> abcissa = tmpout->getAbcissa( irow ) ; |
---|
2984 | double bw = ( abcissa[1] - abcissa[0] ) * abcissa.size() ; |
---|
2985 | int nchan = (int)( bw / gmaxdnu[igrp] ) ; |
---|
2986 | tmpout->regridChannel( nchan, gmaxdnu[igrp], irow ) ; |
---|
2987 | break ; |
---|
2988 | } |
---|
2989 | } |
---|
2990 | } |
---|
2991 | // combine spectra |
---|
2992 | ArrayColumn<Float> specColOut ; |
---|
2993 | specColOut.attach( out->table(), "SPECTRA" ) ; |
---|
2994 | ArrayColumn<uChar> flagColOut ; |
---|
2995 | flagColOut.attach( out->table(), "FLAGTRA" ) ; |
---|
2996 | ScalarColumn<uInt> ifnoColOut ; |
---|
2997 | ifnoColOut.attach( out->table(), "IFNO" ) ; |
---|
2998 | ScalarColumn<uInt> polnoColOut ; |
---|
2999 | polnoColOut.attach( out->table(), "POLNO" ) ; |
---|
3000 | ScalarColumn<uInt> freqidColOut ; |
---|
3001 | freqidColOut.attach( out->table(), "FREQ_ID" ) ; |
---|
3002 | MDirection::ScalarColumn dirColOut ; |
---|
3003 | dirColOut.attach( out->table(), "DIRECTION" ) ; |
---|
3004 | Table &tab = tmpout->table() ; |
---|
3005 | Block<String> cols(1); |
---|
3006 | cols[0] = String("POLNO") ; |
---|
3007 | TableIterator iter( tab, cols ) ; |
---|
3008 | bool done = false ; |
---|
3009 | vector< vector<uInt> > sizes( freqgrp.size() ) ; |
---|
3010 | while( !iter.pastEnd() ) { |
---|
3011 | vector< vector<Float> > specout( freqgrp.size() ) ; |
---|
3012 | vector< vector<uChar> > flagout( freqgrp.size() ) ; |
---|
3013 | ArrayColumn<Float> specCols ; |
---|
3014 | specCols.attach( iter.table(), "SPECTRA" ) ; |
---|
3015 | ArrayColumn<uChar> flagCols ; |
---|
3016 | flagCols.attach( iter.table(), "FLAGTRA" ) ; |
---|
3017 | ifnoCol.attach( iter.table(), "IFNO" ) ; |
---|
3018 | ScalarColumn<uInt> polnos ; |
---|
3019 | polnos.attach( iter.table(), "POLNO" ) ; |
---|
3020 | MDirection::ScalarColumn dircol ; |
---|
3021 | dircol.attach( iter.table(), "DIRECTION" ) ; |
---|
3022 | uInt polno = polnos( 0 ) ; |
---|
3023 | //cout << "POLNO iteration: " << polno << endl ; |
---|
3024 | // for ( uInt igrp = 0 ; igrp < freqgrp.size() ; igrp++ ) { |
---|
3025 | // sizes[igrp].resize( freqgrp[igrp].size() ) ; |
---|
3026 | // for ( uInt imem = 0 ; imem < freqgrp[igrp].size() ; imem++ ) { |
---|
3027 | // for ( uInt irow = 0 ; irow < iter.table().nrow() ; irow++ ) { |
---|
3028 | // uInt ifno = ifnoCol( irow ) ; |
---|
3029 | // if ( ifno == freqgrp[igrp][imem] ) { |
---|
3030 | // Vector<Float> spec = specCols( irow ) ; |
---|
3031 | // Vector<uChar> flag = flagCols( irow ) ; |
---|
3032 | // vector<Float> svec ; |
---|
3033 | // spec.tovector( svec ) ; |
---|
3034 | // vector<uChar> fvec ; |
---|
3035 | // flag.tovector( fvec ) ; |
---|
3036 | // //cout << "spec.size() = " << svec.size() << " fvec.size() = " << fvec.size() << endl ; |
---|
3037 | // specout[igrp].insert( specout[igrp].end(), svec.begin(), svec.end() ) ; |
---|
3038 | // flagout[igrp].insert( flagout[igrp].end(), fvec.begin(), fvec.end() ) ; |
---|
3039 | // //cout << "specout[" << igrp << "].size() = " << specout[igrp].size() << endl ; |
---|
3040 | // sizes[igrp][imem] = spec.nelements() ; |
---|
3041 | // } |
---|
3042 | // } |
---|
3043 | // } |
---|
3044 | // for ( uInt irow = 0 ; irow < out->table().nrow() ; irow++ ) { |
---|
3045 | // uInt ifout = ifnoColOut( irow ) ; |
---|
3046 | // uInt polout = polnoColOut( irow ) ; |
---|
3047 | // if ( ifout == gmemid[igrp] && polout == polno ) { |
---|
3048 | // // set SPECTRA and FRAGTRA |
---|
3049 | // Vector<Float> newspec( specout[igrp] ) ; |
---|
3050 | // Vector<uChar> newflag( flagout[igrp] ) ; |
---|
3051 | // specColOut.put( irow, newspec ) ; |
---|
3052 | // flagColOut.put( irow, newflag ) ; |
---|
3053 | // // IFNO renumbering |
---|
3054 | // ifnoColOut.put( irow, igrp ) ; |
---|
3055 | // } |
---|
3056 | // } |
---|
3057 | // } |
---|
3058 | // get a list of number of channels for each frequency group member |
---|
3059 | if ( !done ) { |
---|
3060 | for ( uInt igrp = 0 ; igrp < freqgrp.size() ; igrp++ ) { |
---|
3061 | sizes[igrp].resize( freqgrp[igrp].size() ) ; |
---|
3062 | for ( uInt imem = 0 ; imem < freqgrp[igrp].size() ; imem++ ) { |
---|
3063 | for ( uInt irow = 0 ; irow < iter.table().nrow() ; irow++ ) { |
---|
3064 | uInt ifno = ifnoCol( irow ) ; |
---|
3065 | if ( ifno == freqgrp[igrp][imem] ) { |
---|
3066 | Vector<Float> spec = specCols( irow ) ; |
---|
3067 | sizes[igrp][imem] = spec.nelements() ; |
---|
3068 | break ; |
---|
3069 | } |
---|
3070 | } |
---|
3071 | } |
---|
3072 | } |
---|
3073 | done = true ; |
---|
3074 | } |
---|
3075 | // combine spectra |
---|
3076 | for ( uInt irow = 0 ; irow < out->table().nrow() ; irow++ ) { |
---|
3077 | uInt polout = polnoColOut( irow ) ; |
---|
3078 | if ( polout == polno ) { |
---|
3079 | uInt ifout = ifnoColOut( irow ) ; |
---|
3080 | Vector<Double> direction = dirColOut(irow).getAngle(Unit(String("rad"))).getValue() ; |
---|
3081 | uInt igrp ; |
---|
3082 | for ( uInt jgrp = 0 ; jgrp < freqgrp.size() ; jgrp++ ) { |
---|
3083 | if ( ifout == gmemid[jgrp] ) { |
---|
3084 | igrp = jgrp ; |
---|
3085 | break ; |
---|
3086 | } |
---|
3087 | } |
---|
3088 | for ( uInt imem = 0 ; imem < freqgrp[igrp].size() ; imem++ ) { |
---|
3089 | for ( uInt jrow = 0 ; jrow < iter.table().nrow() ; jrow++ ) { |
---|
3090 | uInt ifno = ifnoCol( jrow ) ; |
---|
3091 | Vector<Double> tdir = dircol(jrow).getAngle(Unit(String("rad"))).getValue() ; |
---|
3092 | //if ( ifno == freqgrp[igrp][imem] && allTrue( tdir == direction ) ) { |
---|
3093 | if ( ifno == freqgrp[igrp][imem] && allNearAbs( tdir, direction, tol ) ) { |
---|
3094 | Vector<Float> spec = specCols( jrow ) ; |
---|
3095 | Vector<uChar> flag = flagCols( jrow ) ; |
---|
3096 | vector<Float> svec ; |
---|
3097 | spec.tovector( svec ) ; |
---|
3098 | vector<uChar> fvec ; |
---|
3099 | flag.tovector( fvec ) ; |
---|
3100 | //cout << "spec.size() = " << svec.size() << " fvec.size() = " << fvec.size() << endl ; |
---|
3101 | specout[igrp].insert( specout[igrp].end(), svec.begin(), svec.end() ) ; |
---|
3102 | flagout[igrp].insert( flagout[igrp].end(), fvec.begin(), fvec.end() ) ; |
---|
3103 | //cout << "specout[" << igrp << "].size() = " << specout[igrp].size() << endl ; |
---|
3104 | } |
---|
3105 | } |
---|
3106 | } |
---|
3107 | // set SPECTRA and FRAGTRA |
---|
3108 | Vector<Float> newspec( specout[igrp] ) ; |
---|
3109 | Vector<uChar> newflag( flagout[igrp] ) ; |
---|
3110 | specColOut.put( irow, newspec ) ; |
---|
3111 | flagColOut.put( irow, newflag ) ; |
---|
3112 | // IFNO renumbering |
---|
3113 | ifnoColOut.put( irow, igrp ) ; |
---|
3114 | } |
---|
3115 | } |
---|
3116 | iter++ ; |
---|
3117 | } |
---|
3118 | // update FREQUENCIES subtable |
---|
3119 | vector<bool> updated( freqgrp.size(), false ) ; |
---|
3120 | for ( uInt igrp = 0 ; igrp < freqgrp.size() ; igrp++ ) { |
---|
3121 | uInt index = 0 ; |
---|
3122 | uInt pixShift = 0 ; |
---|
3123 | while ( freqgrp[igrp][index] != gmemid[igrp] ) { |
---|
3124 | pixShift += sizes[igrp][index++] ; |
---|
3125 | } |
---|
3126 | for ( uInt irow = 0 ; irow < out->table().nrow() ; irow++ ) { |
---|
3127 | if ( ifnoColOut( irow ) == gmemid[igrp] && !updated[igrp] ) { |
---|
3128 | uInt freqidOut = freqidColOut( irow ) ; |
---|
3129 | //cout << "freqgrp " << igrp << " freqidOut = " << freqidOut << endl ; |
---|
3130 | double refpix ; |
---|
3131 | double refval ; |
---|
3132 | double increm ; |
---|
3133 | out->frequencies().getEntry( refpix, refval, increm, freqidOut ) ; |
---|
3134 | refpix += pixShift ; |
---|
3135 | out->frequencies().setEntry( refpix, refval, increm, freqidOut ) ; |
---|
3136 | updated[igrp] = true ; |
---|
3137 | } |
---|
3138 | } |
---|
3139 | } |
---|
3140 | |
---|
3141 | //out = tmpout ; |
---|
3142 | |
---|
3143 | coordinfo = tmpout->getCoordInfo() ; |
---|
3144 | coordinfo[0] = oldinfo[0] ; |
---|
3145 | tmpout->setCoordInfo( coordinfo ) ; |
---|
3146 | } |
---|
3147 | else { |
---|
3148 | // simple average |
---|
3149 | out = average( in, mask, weight, avmode ) ; |
---|
3150 | } |
---|
3151 | |
---|
3152 | return out ; |
---|
3153 | } |
---|