1 | //#--------------------------------------------------------------------------- |
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2 | //# PKSMS2reader.cc: Class to read Parkes Multibeam data from a v2 MS. |
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3 | //#--------------------------------------------------------------------------- |
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4 | //# livedata - processing pipeline for single-dish, multibeam spectral data. |
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5 | //# Copyright (C) 2000-2009, Australia Telescope National Facility, CSIRO |
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6 | //# |
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7 | //# This file is part of livedata. |
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8 | //# |
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9 | //# livedata is free software: you can redistribute it and/or modify it under |
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10 | //# the terms of the GNU General Public License as published by the Free |
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11 | //# Software Foundation, either version 3 of the License, or (at your option) |
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12 | //# any later version. |
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13 | //# |
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14 | //# livedata is distributed in the hope that it will be useful, but WITHOUT |
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15 | //# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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16 | //# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
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17 | //# more details. |
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18 | //# |
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19 | //# You should have received a copy of the GNU General Public License along |
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20 | //# with livedata. If not, see <http://www.gnu.org/licenses/>. |
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21 | //# |
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22 | //# Correspondence concerning livedata may be directed to: |
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23 | //# Internet email: mcalabre@atnf.csiro.au |
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24 | //# Postal address: Dr. Mark Calabretta |
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25 | //# Australia Telescope National Facility, CSIRO |
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26 | //# PO Box 76 |
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27 | //# Epping NSW 1710 |
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28 | //# AUSTRALIA |
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29 | //# |
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30 | //# http://www.atnf.csiro.au/computing/software/livedata.html |
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31 | //# $Id: PKSMS2reader.cc,v 19.23 2009-09-29 07:33:38 cal103 Exp $ |
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32 | //#--------------------------------------------------------------------------- |
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33 | //# Original: 2000/08/03, Mark Calabretta, ATNF |
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34 | //#--------------------------------------------------------------------------- |
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35 | |
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36 | // AIPS++ includes. |
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37 | #include <casa/stdio.h> |
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38 | #include <casa/Arrays/ArrayMath.h> |
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39 | #include <casa/Arrays/Slice.h> |
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40 | #include <ms/MeasurementSets/MSColumns.h> |
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41 | #include <tables/Tables.h> |
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42 | #include <casa/Quanta/MVTime.h> |
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43 | #include <casa/Quanta/MVAngle.h> |
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44 | #include <casa/BasicMath/Math.h> |
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45 | #include <casa/Logging/LogIO.h> |
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46 | #include <casa/Utilities/Sort.h> |
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47 | #include <measures/Measures/MeasConvert.h> |
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48 | #include <measures/Measures/MEpoch.h> |
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49 | #include <measures/Measures/MeasRef.h> |
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50 | |
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51 | |
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52 | // Parkes includes. |
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53 | #include <atnf/pks/pks_maths.h> |
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54 | #include <atnf/PKSIO/PKSrecord.h> |
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55 | #include <atnf/PKSIO/PKSMS2reader.h> |
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56 | |
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57 | |
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58 | //------------------------------------------------- PKSMS2reader::PKSMS2reader |
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59 | |
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60 | // Default constructor. |
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61 | |
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62 | PKSMS2reader::PKSMS2reader() |
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63 | { |
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64 | cMSopen = False; |
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65 | } |
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66 | |
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67 | //------------------------------------------------ PKSMS2reader::~PKSMS2reader |
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68 | |
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69 | PKSMS2reader::~PKSMS2reader() |
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70 | { |
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71 | close(); |
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72 | } |
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73 | |
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74 | //--------------------------------------------------------- PKSMS2reader::open |
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75 | |
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76 | // Open the MS for reading. |
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77 | |
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78 | Int PKSMS2reader::open( |
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79 | const String msName, |
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80 | const String antenna, |
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81 | Vector<Bool> &beams, |
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82 | Vector<Bool> &IFs, |
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83 | Vector<uInt> &nChan, |
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84 | Vector<uInt> &nPol, |
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85 | Vector<Bool> &haveXPol, |
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86 | Bool &haveBase, |
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87 | Bool &haveSpectra) |
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88 | { |
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89 | // Check that MS is readable. |
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90 | if (!MS::isReadable(msName)) { |
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91 | return 1; |
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92 | } |
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93 | |
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94 | if (cMSopen) { |
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95 | close(); |
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96 | } |
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97 | |
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98 | cPKSMS = MeasurementSet(msName); |
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99 | |
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100 | // data selection by antenna |
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101 | if ( antenna.length() == 0 ) { |
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102 | cAntId.resize( 1 ) ; |
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103 | cAntId[0] = 0 ; |
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104 | } |
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105 | else { |
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106 | setupAntennaList( antenna ) ; |
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107 | if ( cAntId.size() > 1 ) { |
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108 | LogIO os( LogOrigin( "PKSMS2reader", "open()", WHERE ) ) ; |
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109 | os << LogIO::WARN << "PKSMS2reader is not ready for multiple antenna selection. Use first antenna id " << cAntId[0] << "."<< LogIO::POST ; |
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110 | Int tmp = cAntId[0] ; |
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111 | cAntId.resize( 1 ) ; |
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112 | cAntId[0] = tmp ; |
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113 | } |
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114 | stringstream ss ; |
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115 | ss << "SELECT FROM $1 WHERE ANTENNA1 == ANTENNA2 && ANTENNA1 IN [" ; |
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116 | for ( uInt i = 0 ; i < cAntId.size() ; i++ ) { |
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117 | ss << cAntId[i] ; |
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118 | if ( i == cAntId.size()-1 ) { |
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119 | ss << "]" ; |
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120 | } |
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121 | else { |
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122 | ss << "," ; |
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123 | } |
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124 | } |
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125 | string taql = ss.str() ; |
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126 | //cerr << "taql = " << taql << endl ; |
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127 | cPKSMS = MeasurementSet( tableCommand( taql, cPKSMS ) ) ; |
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128 | } |
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129 | |
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130 | // taql access to the syscal table |
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131 | cHaveSysCal = False; |
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132 | if (cHaveSysCal=Table::isReadable(cPKSMS.sysCalTableName())) { |
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133 | cSysCalTab = Table(cPKSMS.sysCalTableName()); |
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134 | } |
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135 | |
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136 | // Lock the table for read access. |
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137 | cPKSMS.lock(False); |
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138 | |
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139 | cIdx = 0; |
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140 | lastmjd = 0.0; |
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141 | cNRow = cPKSMS.nrow(); |
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142 | cMSopen = True; |
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143 | |
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144 | // Main MS table and subtable column access. |
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145 | ROMSMainColumns msCols(cPKSMS); |
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146 | ROMSDataDescColumns dataDescCols(cPKSMS.dataDescription()); |
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147 | ROMSFeedColumns feedCols(cPKSMS.feed()); |
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148 | ROMSFieldColumns fieldCols(cPKSMS.field()); |
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149 | ROMSPointingColumns pointingCols(cPKSMS.pointing()); |
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150 | ROMSPolarizationColumns polarizationCols(cPKSMS.polarization()); |
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151 | ROMSSourceColumns sourceCols(cPKSMS.source()); |
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152 | ROMSSpWindowColumns spWinCols(cPKSMS.spectralWindow()); |
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153 | ROMSStateColumns stateCols(cPKSMS.state()); |
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154 | ROMSSysCalColumns sysCalCols(cPKSMS.sysCal()); |
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155 | ROMSWeatherColumns weatherCols(cPKSMS.weather()); |
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156 | ROMSAntennaColumns antennaCols(cPKSMS.antenna()); |
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157 | |
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158 | // Column accessors for required columns. |
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159 | cScanNoCol.reference(msCols.scanNumber()); |
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160 | cTimeCol.reference(msCols.time()); |
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161 | cIntervalCol.reference(msCols.interval()); |
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162 | |
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163 | cFieldIdCol.reference(msCols.fieldId()); |
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164 | cFieldNameCol.reference(fieldCols.name()); |
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165 | cFieldDelayDirCol.reference(fieldCols.delayDir()); |
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166 | |
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167 | cSrcIdCol.reference(fieldCols.sourceId()); |
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168 | cSrcId2Col.reference(sourceCols.sourceId()); |
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169 | cSrcNameCol.reference(sourceCols.name()); |
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170 | cSrcDirCol.reference(sourceCols.direction()); |
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171 | cSrcPMCol.reference(sourceCols.properMotion()); |
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172 | cSrcRestFrqCol.reference(sourceCols.restFrequency()); |
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173 | |
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174 | cStateIdCol.reference(msCols.stateId()); |
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175 | cObsModeCol.reference(stateCols.obsMode()); |
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176 | cCalCol.reference(stateCols.cal()); |
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177 | cSigStateCol.reference(stateCols.sig()); |
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178 | cRefStateCol.reference(stateCols.ref()); |
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179 | |
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180 | cDataDescIdCol.reference(msCols.dataDescId()); |
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181 | cSpWinIdCol.reference(dataDescCols.spectralWindowId()); |
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182 | cChanFreqCol.reference(spWinCols.chanFreq()); |
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183 | cTotBWCol.reference(spWinCols.totalBandwidth()); |
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184 | |
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185 | cWeatherTimeCol.reference(weatherCols.time()); |
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186 | cTemperatureCol.reference(weatherCols.temperature()); |
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187 | cPressureCol.reference(weatherCols.pressure()); |
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188 | cHumidityCol.reference(weatherCols.relHumidity()); |
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189 | |
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190 | cBeamNoCol.reference(msCols.feed1()); |
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191 | cPointingCol.reference(pointingCols.direction()); |
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192 | cPointingTimeCol.reference(pointingCols.time()); |
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193 | cSigmaCol.reference(msCols.sigma()); |
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194 | cNumReceptorCol.reference(feedCols.numReceptors()); |
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195 | |
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196 | // Optional columns. |
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197 | cHaveTsys = False; |
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198 | cHaveTcal = False; |
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199 | if ((cHaveSrcVel = cPKSMS.source().tableDesc().isColumn("SYSVEL"))) { |
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200 | cSrcVelCol.attach(cPKSMS.source(), "SYSVEL"); |
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201 | } |
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202 | |
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203 | if (cHaveSysCal && (cHaveTsys = cPKSMS.sysCal().tableDesc().isColumn("TSYS"))) { |
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204 | cTsysCol.attach(cPKSMS.sysCal(), "TSYS"); |
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205 | } |
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206 | |
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207 | if (cHaveSysCal && (cHaveTcal = cPKSMS.sysCal().tableDesc().isColumn("TCAL"))) { |
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208 | cTcalCol.attach(cPKSMS.sysCal(), "TCAL"); |
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209 | } |
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210 | |
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211 | if ((cHaveCalFctr = cPKSMS.tableDesc().isColumn("CALFCTR"))) { |
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212 | cCalFctrCol.attach(cPKSMS, "CALFCTR"); |
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213 | } |
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214 | |
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215 | if ((cHaveBaseLin = cPKSMS.tableDesc().isColumn("BASELIN"))) { |
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216 | cBaseLinCol.attach(cPKSMS, "BASELIN"); |
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217 | cBaseSubCol.attach(cPKSMS, "BASESUB"); |
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218 | } |
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219 | |
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220 | // Spectral data should always be present. |
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221 | haveSpectra = True; |
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222 | cHaveDataCol = False; |
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223 | cHaveCorrectedDataCol = False; |
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224 | ROMSObservationColumns observationCols(cPKSMS.observation()); |
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225 | //String telName = observationCols.telescopeName()(0); |
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226 | cTelName = observationCols.telescopeName()(0); |
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227 | //cATF = cTelName.contains("ATF"); |
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228 | //cOSF = cTelName.contains("OSF"); |
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229 | //cALMA = cTelName.contains("ALMA"); |
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230 | cALMA = cTelName.contains("ATF")||cTelName.contains("OSF")|| |
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231 | cTelName.contains("ALMA"); |
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232 | |
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233 | if (cHaveDataCol = cPKSMS.isColumn(MSMainEnums::DATA)) { |
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234 | if (cALMA) { |
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235 | //try to read a single baseline interferometeric data |
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236 | //and treat it as single dish data |
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237 | //maybe extended for ALMA commissioning later |
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238 | cDataCol.reference(msCols.data()); |
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239 | if (cHaveCorrectedDataCol = cPKSMS.isColumn(MSMainEnums::CORRECTED_DATA)) { |
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240 | //cerr<<"Do have CORRECTED_DATA column"<<endl; |
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241 | cCorrectedDataCol.reference(msCols.correctedData()); |
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242 | } |
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243 | } |
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244 | } |
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245 | else { |
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246 | cFloatDataCol.reference(msCols.floatData()); |
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247 | } |
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248 | cFlagCol.reference(msCols.flag()); |
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249 | cFlagRowCol.reference(msCols.flagRow()); |
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250 | |
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251 | if (cGetXPol = (cPKSMS.isColumn(MSMainEnums::DATA) && (!cALMA))) { |
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252 | if ((cHaveXCalFctr = cPKSMS.tableDesc().isColumn("XCALFCTR"))) { |
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253 | cXCalFctrCol.attach(cPKSMS, "XCALFCTR"); |
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254 | } |
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255 | |
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256 | cDataCol.reference(msCols.data()); |
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257 | } |
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258 | |
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259 | // Find which beams are present in the data. |
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260 | Vector<Int> beamNos = cBeamNoCol.getColumn(); |
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261 | Int maxBeamNo = max(beamNos) + 1; |
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262 | beams.resize(maxBeamNo); |
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263 | |
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264 | beams = False; |
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265 | for (uInt irow = 0; irow < beamNos.nelements(); irow++) { |
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266 | beams(beamNos(irow)) = True; |
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267 | } |
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268 | |
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269 | |
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270 | // Number of IFs. |
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271 | //uInt nIF = dataDescCols.nrow(); |
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272 | uInt nIF =spWinCols.nrow(); |
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273 | Vector<Int> spWinIds = cSpWinIdCol.getColumn() ; |
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274 | IFs.resize(nIF); |
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275 | IFs = True; |
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276 | for ( Int ispw = 0 ; ispw < nIF ; ispw++ ) { |
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277 | if ( allNE( ispw, spWinIds ) ) { |
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278 | IFs(ispw) = False ; |
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279 | } |
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280 | } |
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281 | |
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282 | // Number of polarizations and channels in each IF. |
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283 | ROScalarColumn<Int> numChanCol(spWinCols.numChan()); |
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284 | |
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285 | ROScalarColumn<Int> polIdCol(dataDescCols.polarizationId()); |
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286 | ROScalarColumn<Int> numPolCol(polarizationCols.numCorr()); |
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287 | |
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288 | nChan.resize(nIF); |
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289 | nPol.resize(nIF); |
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290 | for (uInt iIF = 0; iIF < nIF; iIF++) { |
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291 | if ( IFs(iIF) ) { |
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292 | nChan(iIF) = numChanCol(cSpWinIdCol(iIF)) ; |
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293 | nPol(iIF) = numPolCol(polIdCol(iIF)) ; |
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294 | } |
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295 | else { |
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296 | nChan(iIF) = 0 ; |
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297 | nPol(iIF) = 0 ; |
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298 | } |
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299 | } |
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300 | |
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301 | // Cross-polarization data present? |
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302 | haveXPol.resize(nIF); |
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303 | haveXPol = False; |
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304 | |
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305 | if (cGetXPol && !(cALMA)) { |
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306 | for (Int irow = 0; irow < cNRow; irow++) { |
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307 | if (cDataCol.isDefined(irow)) { |
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308 | Int iIF = cDataDescIdCol(irow); |
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309 | haveXPol(iIF) = True; |
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310 | } |
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311 | } |
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312 | } |
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313 | |
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314 | |
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315 | // Initialize member data. |
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316 | cBeams.assign(beams); |
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317 | cIFs.assign(IFs); |
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318 | cNChan.assign(nChan); |
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319 | cNPol.assign(nPol); |
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320 | cHaveXPol.assign(haveXPol); |
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321 | |
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322 | |
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323 | // Default channel range selection. |
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324 | cStartChan.resize(nIF); |
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325 | cEndChan.resize(nIF); |
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326 | cRefChan.resize(nIF); |
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327 | |
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328 | for (uInt iIF = 0; iIF < nIF; iIF++) { |
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329 | cStartChan(iIF) = 1; |
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330 | cEndChan(iIF) = cNChan(iIF); |
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331 | cRefChan(iIF) = cNChan(iIF)/2 + 1; |
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332 | } |
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333 | |
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334 | Slice all; |
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335 | cDataSel.resize(nIF); |
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336 | cDataSel = Slicer(all, all); |
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337 | |
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338 | cScanNo = 0; |
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339 | cCycleNo = 1; |
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340 | cTime = cTimeCol(0); |
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341 | |
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342 | return 0; |
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343 | } |
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344 | |
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345 | //---------------------------------------------------- PKSMS2reader::getHeader |
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346 | |
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347 | // Get parameters describing the data. |
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348 | |
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349 | Int PKSMS2reader::getHeader( |
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350 | String &observer, |
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351 | String &project, |
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352 | String &antName, |
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353 | Vector<Double> &antPosition, |
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354 | // before merge... |
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355 | //String &obsMode, |
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356 | String &obsType, |
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357 | String &bunit, |
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358 | Float &equinox, |
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359 | String &dopplerFrame, |
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360 | Double &mjd, |
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361 | Double &refFreq, |
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362 | Double &bandwidth) |
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363 | { |
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364 | if (!cMSopen) { |
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365 | return 1; |
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366 | } |
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367 | |
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368 | // Observer and project. |
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369 | ROMSObservationColumns observationCols(cPKSMS.observation()); |
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370 | observer = observationCols.observer()(0); |
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371 | project = observationCols.project()(0); |
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372 | |
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373 | // Antenna name and ITRF coordinates. |
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374 | ROMSAntennaColumns antennaCols(cPKSMS.antenna()); |
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375 | //antName = antennaCols.name()(0); |
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376 | antName = antennaCols.name()(cAntId[0]); |
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377 | if (cALMA) { |
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378 | antName = cTelName + "-" + antName; |
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379 | } |
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380 | //antPosition = antennaCols.position()(0); |
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381 | antPosition = antennaCols.position()(cAntId[0]); |
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382 | |
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383 | // Observation type. |
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384 | if (cObsModeCol.nrow()) { |
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385 | obsType = cObsModeCol(0); |
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386 | if (obsType == "\0") obsType = "RF"; |
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387 | } else { |
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388 | obsType = "RF"; |
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389 | } |
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390 | |
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391 | bunit = ""; |
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392 | if (cHaveDataCol) { |
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393 | const TableRecord& keywordSet2 |
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394 | = cDataCol.columnDesc().keywordSet(); |
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395 | if(keywordSet2.isDefined("UNIT")) { |
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396 | bunit = keywordSet2.asString("UNIT"); |
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397 | } |
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398 | } else { |
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399 | const TableRecord& keywordSet |
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400 | = cFloatDataCol.columnDesc().keywordSet(); |
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401 | if(keywordSet.isDefined("UNIT")) { |
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402 | bunit = keywordSet.asString("UNIT"); |
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403 | } |
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404 | } |
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405 | |
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406 | /*** |
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407 | const TableRecord& keywordSet |
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408 | = cFloatDataCol.columnDesc().keywordSet(); |
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409 | if(keywordSet.isDefined("UNIT")) { |
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410 | fluxunit = keywordSet.asString("UNIT"); |
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411 | } |
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412 | ***/ |
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413 | // Coordinate equinox. |
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414 | ROMSPointingColumns pointingCols(cPKSMS.pointing()); |
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415 | String dirref = pointingCols.direction().keywordSet().asRecord("MEASINFO"). |
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416 | asString("Ref"); |
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417 | cDirRef = dirref; |
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418 | if (dirref =="AZELGEO" || dirref == "AZEL") { |
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419 | dirref = "J2000"; |
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420 | } |
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421 | sscanf(dirref.chars()+1, "%f", &equinox); |
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422 | |
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423 | // Frequency/velocity reference frame. |
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424 | ROMSSpWindowColumns spWinCols(cPKSMS.spectralWindow()); |
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425 | dopplerFrame = MFrequency::showType(spWinCols.measFreqRef()(0)); |
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426 | |
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427 | // Translate to FITS standard names. |
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428 | if (dopplerFrame == "TOPO") { |
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429 | dopplerFrame = "TOPOCENT"; |
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430 | } else if (dopplerFrame == "GEO") { |
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431 | dopplerFrame = "GEOCENTR"; |
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432 | } else if (dopplerFrame == "BARY") { |
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433 | dopplerFrame = "BARYCENT"; |
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434 | } else if (dopplerFrame == "GALACTO") { |
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435 | dopplerFrame = "GALACTOC"; |
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436 | } else if (dopplerFrame == "LGROUP") { |
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437 | dopplerFrame = "LOCALGRP"; |
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438 | } else if (dopplerFrame == "CMB") { |
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439 | dopplerFrame = "CMBDIPOL"; |
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440 | } else if (dopplerFrame == "REST") { |
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441 | dopplerFrame = "SOURCE"; |
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442 | } |
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443 | |
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444 | // MJD at start of observation. |
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445 | mjd = cTimeCol(0)/86400.0; |
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446 | |
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447 | // Reference frequency and bandwidth. |
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448 | refFreq = spWinCols.refFrequency()(0); |
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449 | bandwidth = spWinCols.totalBandwidth()(0); |
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450 | |
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451 | return 0; |
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452 | } |
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453 | |
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454 | //-------------------------------------------------- PKSMS2reader::getFreqInfo |
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455 | |
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456 | // Get frequency parameters for each IF. |
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457 | |
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458 | Int PKSMS2reader::getFreqInfo( |
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459 | Vector<Double> &startFreq, |
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460 | Vector<Double> &endFreq) |
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461 | { |
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462 | uInt nIF = cIFs.nelements(); |
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463 | startFreq.resize(nIF); |
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464 | endFreq.resize(nIF); |
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465 | |
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466 | for (uInt iIF = 0; iIF < nIF; iIF++) { |
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467 | Vector<Double> chanFreq = cChanFreqCol(iIF); |
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468 | |
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469 | Int nChan = chanFreq.nelements(); |
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470 | startFreq(iIF) = chanFreq(0); |
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471 | endFreq(iIF) = chanFreq(nChan-1); |
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472 | } |
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473 | |
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474 | return 0; |
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475 | } |
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476 | |
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477 | //------------------------------------------------------- PKSMS2reader::select |
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478 | |
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479 | // Set data selection by beam number and channel. |
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480 | |
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481 | uInt PKSMS2reader::select( |
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482 | const Vector<Bool> beamSel, |
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483 | const Vector<Bool> IFsel, |
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484 | const Vector<Int> startChan, |
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485 | const Vector<Int> endChan, |
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486 | const Vector<Int> refChan, |
---|
487 | const Bool getSpectra, |
---|
488 | const Bool getXPol, |
---|
489 | const Bool getFeedPos, |
---|
490 | const Bool getPointing, |
---|
491 | const Int coordSys) |
---|
492 | { |
---|
493 | if (!cMSopen) { |
---|
494 | return 1; |
---|
495 | } |
---|
496 | |
---|
497 | // Beam selection. |
---|
498 | uInt nBeam = cBeams.nelements(); |
---|
499 | uInt nBeamSel = beamSel.nelements(); |
---|
500 | for (uInt ibeam = 0; ibeam < nBeam; ibeam++) { |
---|
501 | if (ibeam < nBeamSel) { |
---|
502 | cBeams(ibeam) = beamSel(ibeam); |
---|
503 | } else { |
---|
504 | cBeams(ibeam) = False; |
---|
505 | } |
---|
506 | } |
---|
507 | |
---|
508 | uInt nIF = cIFs.nelements(); |
---|
509 | uInt maxNChan = 0; |
---|
510 | for (uInt iIF = 0; iIF < nIF; iIF++) { |
---|
511 | // IF selection. |
---|
512 | if (iIF < IFsel.nelements()) { |
---|
513 | cIFs(iIF) = IFsel(iIF); |
---|
514 | } else { |
---|
515 | cIFs(iIF) = False; |
---|
516 | } |
---|
517 | |
---|
518 | if (!cIFs(iIF)) continue; |
---|
519 | |
---|
520 | |
---|
521 | // Channel selection. |
---|
522 | if (iIF < startChan.nelements()) { |
---|
523 | cStartChan(iIF) = startChan(iIF); |
---|
524 | |
---|
525 | if (cStartChan(iIF) <= 0) { |
---|
526 | cStartChan(iIF) += cNChan(iIF); |
---|
527 | } else if (cStartChan(iIF) > Int(cNChan(iIF))) { |
---|
528 | cStartChan(iIF) = cNChan(iIF); |
---|
529 | } |
---|
530 | } |
---|
531 | |
---|
532 | if (iIF < endChan.nelements()) { |
---|
533 | cEndChan(iIF) = endChan(iIF); |
---|
534 | |
---|
535 | if (cEndChan(iIF) <= 0) { |
---|
536 | cEndChan(iIF) += cNChan(iIF); |
---|
537 | } else if (cEndChan(iIF) > Int(cNChan(iIF))) { |
---|
538 | cEndChan(iIF) = cNChan(iIF); |
---|
539 | } |
---|
540 | } |
---|
541 | |
---|
542 | if (iIF < refChan.nelements()) { |
---|
543 | cRefChan(iIF) = refChan(iIF); |
---|
544 | } else { |
---|
545 | cRefChan(iIF) = cStartChan(iIF); |
---|
546 | if (cStartChan(iIF) <= cEndChan(iIF)) { |
---|
547 | cRefChan(iIF) += (cEndChan(iIF) - cStartChan(iIF) + 1)/2; |
---|
548 | } else { |
---|
549 | cRefChan(iIF) -= (cStartChan(iIF) - cEndChan(iIF) + 1)/2; |
---|
550 | } |
---|
551 | } |
---|
552 | |
---|
553 | uInt nChan = abs(cEndChan(iIF) - cStartChan(iIF)) + 1; |
---|
554 | if (maxNChan < nChan) { |
---|
555 | maxNChan = nChan; |
---|
556 | } |
---|
557 | |
---|
558 | // Inverted Slices are not allowed. |
---|
559 | Slice outPols; |
---|
560 | Slice outChans(min(cStartChan(iIF),cEndChan(iIF))-1, nChan); |
---|
561 | cDataSel(iIF) = Slicer(outPols, outChans); |
---|
562 | } |
---|
563 | |
---|
564 | // Get spectral data? |
---|
565 | cGetSpectra = getSpectra; |
---|
566 | |
---|
567 | // Get cross-polarization data? |
---|
568 | cGetXPol = cGetXPol && getXPol; |
---|
569 | |
---|
570 | // Get feed positions? (Not available.) |
---|
571 | cGetFeedPos = False; |
---|
572 | |
---|
573 | // Get Pointing data (for MS) |
---|
574 | cGetPointing = getPointing; |
---|
575 | |
---|
576 | // Coordinate system? (Only equatorial available.) |
---|
577 | cCoordSys = 0; |
---|
578 | |
---|
579 | return maxNChan; |
---|
580 | } |
---|
581 | |
---|
582 | //---------------------------------------------------- PKSMS2reader::findRange |
---|
583 | |
---|
584 | // Find the range of the data in time and position. |
---|
585 | |
---|
586 | Int PKSMS2reader::findRange( |
---|
587 | Int &nRow, |
---|
588 | Int &nSel, |
---|
589 | Vector<Double> &timeSpan, |
---|
590 | Matrix<Double> &positions) |
---|
591 | { |
---|
592 | if (!cMSopen) { |
---|
593 | return 1; |
---|
594 | } |
---|
595 | |
---|
596 | nRow = cNRow; |
---|
597 | |
---|
598 | // Find the number of rows selected. |
---|
599 | nSel = 0; |
---|
600 | Vector<Bool> sel(nRow); |
---|
601 | for (Int irow = 0; irow < nRow; irow++) { |
---|
602 | if ((sel(irow) = cBeams(cBeamNoCol(irow)) && |
---|
603 | cIFs(cDataDescIdCol(irow)))) { |
---|
604 | nSel++; |
---|
605 | } |
---|
606 | } |
---|
607 | |
---|
608 | // Find the time range (s). |
---|
609 | timeSpan.resize(2); |
---|
610 | timeSpan(0) = cTimeCol(0); |
---|
611 | timeSpan(1) = cTimeCol(nRow-1); |
---|
612 | |
---|
613 | // Retrieve positions for selected data. |
---|
614 | Int isel = 0; |
---|
615 | positions.resize(2,nSel); |
---|
616 | for (Int irow = 0; irow < nRow; irow++) { |
---|
617 | if (sel(irow)) { |
---|
618 | Matrix<Double> pointingDir = cPointingCol(cFieldIdCol(irow)); |
---|
619 | positions.column(isel++) = pointingDir.column(0); |
---|
620 | } |
---|
621 | } |
---|
622 | |
---|
623 | return 0; |
---|
624 | } |
---|
625 | |
---|
626 | //--------------------------------------------------------- PKSMS2reader::read |
---|
627 | |
---|
628 | // Read the next data record. |
---|
629 | |
---|
630 | /** |
---|
631 | Int PKSMS2reader::read( |
---|
632 | Int &scanNo, |
---|
633 | Int &cycleNo, |
---|
634 | Double &mjd, |
---|
635 | Double &interval, |
---|
636 | String &fieldName, |
---|
637 | String &srcName, |
---|
638 | Vector<Double> &srcDir, |
---|
639 | Vector<Double> &srcPM, |
---|
640 | Double &srcVel, |
---|
641 | String &obsMode, |
---|
642 | Int &IFno, |
---|
643 | Double &refFreq, |
---|
644 | Double &bandwidth, |
---|
645 | Double &freqInc, |
---|
646 | Vector<Double> &restFreq, |
---|
647 | Vector<Float> &tcal, |
---|
648 | String &tcalTime, |
---|
649 | Float &azimuth, |
---|
650 | Float &elevation, |
---|
651 | Float &parAngle, |
---|
652 | Float &focusAxi, |
---|
653 | Float &focusTan, |
---|
654 | Float &focusRot, |
---|
655 | Float &temperature, |
---|
656 | Float &pressure, |
---|
657 | Float &humidity, |
---|
658 | Float &windSpeed, |
---|
659 | Float &windAz, |
---|
660 | Int &refBeam, |
---|
661 | Int &beamNo, |
---|
662 | Vector<Double> &direction, |
---|
663 | Vector<Double> &scanRate, |
---|
664 | Vector<Float> &tsys, |
---|
665 | Vector<Float> &sigma, |
---|
666 | Vector<Float> &calFctr, |
---|
667 | Matrix<Float> &baseLin, |
---|
668 | Matrix<Float> &baseSub, |
---|
669 | Matrix<Float> &spectra, |
---|
670 | Matrix<uChar> &flagged, |
---|
671 | uInt &flagrow, |
---|
672 | Complex &xCalFctr, |
---|
673 | Vector<Complex> &xPol) |
---|
674 | **/ |
---|
675 | Int PKSMS2reader::read(PKSrecord &pksrec) |
---|
676 | { |
---|
677 | LogIO os( LogOrigin( "PKSMS2reader", "read()", WHERE ) ) ; |
---|
678 | |
---|
679 | if (!cMSopen) { |
---|
680 | return 1; |
---|
681 | } |
---|
682 | |
---|
683 | // Check for EOF. |
---|
684 | if (cIdx >= cNRow) { |
---|
685 | return -1; |
---|
686 | } |
---|
687 | |
---|
688 | // Find the next selected beam and IF. |
---|
689 | Int ibeam; |
---|
690 | Int iIF; |
---|
691 | Int iDataDesc; |
---|
692 | |
---|
693 | while (True) { |
---|
694 | ibeam = cBeamNoCol(cIdx); |
---|
695 | iDataDesc = cDataDescIdCol(cIdx); |
---|
696 | iIF =cSpWinIdCol(iDataDesc); |
---|
697 | if (cBeams(ibeam) && cIFs(iIF)) { |
---|
698 | break; |
---|
699 | } |
---|
700 | |
---|
701 | // Check for EOF. |
---|
702 | if (++cIdx >= cNRow) { |
---|
703 | return -1; |
---|
704 | } |
---|
705 | } |
---|
706 | // Renumerate scan no. Here still is 1-based |
---|
707 | //scanNo = cScanNoCol(cIdx) - cScanNoCol(0) + 1; |
---|
708 | //scanNo = cScanNoCol(cIdx); |
---|
709 | pksrec.scanNo = cScanNoCol(cIdx); |
---|
710 | |
---|
711 | if (pksrec.scanNo != cScanNo) { |
---|
712 | // Start of new scan. |
---|
713 | cScanNo = pksrec.scanNo; |
---|
714 | cCycleNo = 1; |
---|
715 | cTime = cTimeCol(cIdx); |
---|
716 | } |
---|
717 | |
---|
718 | Double time = cTimeCol(cIdx); |
---|
719 | pksrec.mjd = time/86400.0; |
---|
720 | pksrec.interval = cIntervalCol(cIdx); |
---|
721 | |
---|
722 | // Reconstruct the integration cycle number; due to small latencies the |
---|
723 | // integration time is usually slightly less than the time between cycles, |
---|
724 | // resetting cTime will prevent the difference from accumulating. |
---|
725 | cCycleNo += nint((time - cTime)/pksrec.interval); |
---|
726 | pksrec.cycleNo = cCycleNo; |
---|
727 | cTime = time; |
---|
728 | |
---|
729 | Int fieldId = cFieldIdCol(cIdx); |
---|
730 | pksrec.fieldName = cFieldNameCol(fieldId); |
---|
731 | |
---|
732 | Int srcId = cSrcIdCol(fieldId); |
---|
733 | //For source with multiple spectral window setting, this is not |
---|
734 | // correct. Source name of srcId may not be at 'srcId'th row of SrcNameCol |
---|
735 | //srcName = cSrcNameCol(srcId); |
---|
736 | for (uInt irow = 0; irow < cSrcId2Col.nrow(); irow++) { |
---|
737 | if (cSrcId2Col(irow) == srcId) { |
---|
738 | //srcName = cSrcNameCol(irow); |
---|
739 | pksrec.srcName = cSrcNameCol(irow); |
---|
740 | } |
---|
741 | } |
---|
742 | |
---|
743 | pksrec.srcDir = cSrcDirCol(srcId); |
---|
744 | pksrec.srcPM = cSrcPMCol(srcId); |
---|
745 | |
---|
746 | // Systemic velocity. |
---|
747 | if (!cHaveSrcVel || cALMA) { |
---|
748 | pksrec.srcVel = 0.0f; |
---|
749 | } else { |
---|
750 | pksrec.srcVel = cSrcVelCol(srcId)(IPosition(1,0)); |
---|
751 | } |
---|
752 | |
---|
753 | ROMSAntennaColumns antennaCols(cPKSMS.antenna()); |
---|
754 | //String telescope = antennaCols.name()(0); |
---|
755 | String telescope = antennaCols.name()(cAntId[0]); |
---|
756 | Bool cGBT = telescope.contains("GBT"); |
---|
757 | //Bool cPM = telescope.contains("PM"); // ACA TP antenna |
---|
758 | //Bool cDV = telescope.contains("DV"); // VERTEX |
---|
759 | //Bool cCM = telescope.contains("CM"); // ACA 7m antenna |
---|
760 | //Bool cALMA = cPM || cDV || cCM ; |
---|
761 | // Observation type. |
---|
762 | // check if State Table exist |
---|
763 | //Bool cHaveStateTab=Table::isReadable(cPKSMS.stateTableName()); |
---|
764 | Int stateId = 0; |
---|
765 | Int StateNRow = 0; |
---|
766 | StateNRow=cObsModeCol.nrow(); |
---|
767 | if (Table::isReadable(cPKSMS.stateTableName())) { |
---|
768 | pksrec.obsType = " "; |
---|
769 | if (StateNRow > 0) { |
---|
770 | stateId = cStateIdCol(cIdx); |
---|
771 | if (stateId == -1) { |
---|
772 | //pksrec.obsType = " "; |
---|
773 | } else { |
---|
774 | pksrec.obsType = cObsModeCol(stateId); |
---|
775 | Bool sigState =cSigStateCol(stateId); |
---|
776 | Bool refState =cRefStateCol(stateId); |
---|
777 | //DEBUG |
---|
778 | //cerr <<"stateid="<<stateId<<" obsmode="<<pksrec.obsType<<endl; |
---|
779 | if (cGBT) { |
---|
780 | // split the obsType string and append a proper label |
---|
781 | // (these are GBT specific) |
---|
782 | int epos = pksrec.obsType.find_first_of(':'); |
---|
783 | int nextpos = pksrec.obsType.find_first_of(':',epos+1); |
---|
784 | string obsMode1 = pksrec.obsType.substr(0,epos); |
---|
785 | string obsMode2 = pksrec.obsType.substr(epos+1,nextpos-epos-1); |
---|
786 | |
---|
787 | //cerr <<"obsMode2= "<<obsMode2<<endl; |
---|
788 | if (!pksrec.srcName.contains("_ps") |
---|
789 | &&!pksrec.srcName.contains("_psr") |
---|
790 | &&!pksrec.srcName.contains("_nod") |
---|
791 | &&!pksrec.srcName.contains("_fs") |
---|
792 | &&!pksrec.srcName.contains("_fsr")) { |
---|
793 | // if Nod mode observation , append '_nod' |
---|
794 | if (obsMode1 == "Nod") { |
---|
795 | //pksrec.srcName.append("_nod"); |
---|
796 | pksrec.srcType = SrcType::NOD ; |
---|
797 | } else if (obsMode1 == "OffOn") { |
---|
798 | // for GBT position switch observations (OffOn or OnOff) |
---|
799 | //if (obsMode2 == "PSWITCHON") pksrec.srcName.append("_ps"); |
---|
800 | //if (obsMode2 == "PSWITCHOFF") pksrec.srcName.append("_psr"); |
---|
801 | if (obsMode2 == "PSWITCHON") pksrec.srcType = SrcType::PSON ; |
---|
802 | if (obsMode2 == "PSWITCHOFF") pksrec.srcType = SrcType::PSOFF ; |
---|
803 | } else { |
---|
804 | if (obsMode2 == "FSWITCH") { |
---|
805 | // for GBT frequency switch mode |
---|
806 | //if (sigState) pksrec.srcName.append("_fs"); |
---|
807 | //if (refState) pksrec.srcName.append("_fsr"); |
---|
808 | if (sigState) pksrec.srcType = SrcType::FSON ; |
---|
809 | if (refState) pksrec.srcType = SrcType::FSOFF ; |
---|
810 | } |
---|
811 | } |
---|
812 | } |
---|
813 | } |
---|
814 | else if (cALMA) { |
---|
815 | // ALMA tag |
---|
816 | // split the obsType string and append a proper label |
---|
817 | string substr[1] ; |
---|
818 | int numSubstr = split( pksrec.obsType, substr, 1, "," ); |
---|
819 | String obsType = String( substr[0] ); |
---|
820 | int epos = obsType.find_first_of('.'); |
---|
821 | int nextpos = obsType.find_first_of('.',epos+1); |
---|
822 | string obsMode1 = obsType.substr(0,epos); |
---|
823 | string obsMode2 = obsType.substr(epos+1,nextpos-epos-1); |
---|
824 | |
---|
825 | //cerr <<"obsMode2= "<<obsMode2<<endl; |
---|
826 | // Current OBS_MODE format: |
---|
827 | // |
---|
828 | // ON: OBSERVE_TARGET.ON_SOURCE |
---|
829 | // OFF: OBSERVE_TARGET.OFF_SOURCE |
---|
830 | // |
---|
831 | if (obsMode1 == "OBSERVE_TARGET") { |
---|
832 | //if (obsMode2 == "ON_SOURCE") pksrec.srcName.append("_pson"); |
---|
833 | //if (obsMode2 == "OFF_SOURCE") pksrec.srcName.append("_psoff"); |
---|
834 | if (obsMode2 == "ON_SOURCE") pksrec.srcType = SrcType::PSON ; |
---|
835 | if (obsMode2 == "OFF_SOURCE") pksrec.srcType = SrcType::PSOFF ; |
---|
836 | } |
---|
837 | } |
---|
838 | } |
---|
839 | } |
---|
840 | } |
---|
841 | // CAL state |
---|
842 | // this should be apply just for GBT data? |
---|
843 | Double Cal; |
---|
844 | if (stateId==-1 || StateNRow==0) { |
---|
845 | Cal = 0; |
---|
846 | } else { |
---|
847 | Cal = cCalCol(stateId); |
---|
848 | } |
---|
849 | if (cGBT) { |
---|
850 | if (Cal > 0 && !pksrec.srcName.contains("_calon")) { |
---|
851 | //pksrec.srcName.append("_calon"); |
---|
852 | if ( pksrec.srcType == SrcType::NOD ) |
---|
853 | pksrec.srcType = SrcType::NODCAL ; |
---|
854 | else if ( pksrec.srcType == SrcType::PSON ) |
---|
855 | pksrec.srcType = SrcType::PONCAL ; |
---|
856 | else if ( pksrec.srcType == SrcType::PSOFF ) |
---|
857 | pksrec.srcType = SrcType::POFFCAL ; |
---|
858 | else if ( pksrec.srcType == SrcType::FSON ) |
---|
859 | pksrec.srcType = SrcType::FONCAL ; |
---|
860 | else if ( pksrec.srcType == SrcType::FSOFF ) |
---|
861 | pksrec.srcType = SrcType::FOFFCAL ; |
---|
862 | else |
---|
863 | pksrec.srcName.append("_calon"); |
---|
864 | } |
---|
865 | } |
---|
866 | |
---|
867 | pksrec.IFno = iIF + 1; |
---|
868 | Int nChan = abs(cEndChan(iIF) - cStartChan(iIF)) + 1; |
---|
869 | |
---|
870 | // Minimal handling on continuum data. |
---|
871 | Vector<Double> chanFreq = cChanFreqCol(iIF); |
---|
872 | if (nChan == 1) { |
---|
873 | //pksrec.freqInc = chanFreq(0); |
---|
874 | pksrec.freqInc = cTotBWCol(iIF); |
---|
875 | pksrec.refFreq = chanFreq(0); |
---|
876 | pksrec.restFreq.resize(1); |
---|
877 | pksrec.restFreq[0] = 0.0f; |
---|
878 | } else { |
---|
879 | |
---|
880 | if (cStartChan(iIF) <= cEndChan(iIF)) { |
---|
881 | pksrec.freqInc = chanFreq(1) - chanFreq(0); |
---|
882 | } else { |
---|
883 | pksrec.freqInc = chanFreq(0) - chanFreq(1); |
---|
884 | } |
---|
885 | |
---|
886 | pksrec.refFreq = chanFreq(cRefChan(iIF)-1); |
---|
887 | |
---|
888 | Bool HaveSrcRestFreq= cSrcRestFrqCol.isDefined(srcId); |
---|
889 | if (HaveSrcRestFreq) { |
---|
890 | //restFreq = cSrcRestFrqCol(srcId)(IPosition(1,0)); |
---|
891 | //restFreq = cSrcRestFrqCol(srcId); |
---|
892 | pksrec.restFreq = cSrcRestFrqCol(srcId); |
---|
893 | } else { |
---|
894 | pksrec.restFreq.resize(1); |
---|
895 | pksrec.restFreq[0] = 0.0f; |
---|
896 | } |
---|
897 | } |
---|
898 | //pksrec.bandwidth = abs(pksrec.freqInc * nChan); |
---|
899 | pksrec.bandwidth = abs(cTotBWCol(0)); |
---|
900 | |
---|
901 | pksrec.tcal.resize(cNPol(iIF)); |
---|
902 | pksrec.tcal = 0.0f; |
---|
903 | pksrec.tcalTime = ""; |
---|
904 | // pksrec.azimuth = 0.0f; |
---|
905 | // pksrec.elevation = 0.0f; |
---|
906 | pksrec.parAngle = 0.0f; |
---|
907 | |
---|
908 | pksrec.focusAxi = 0.0f; |
---|
909 | pksrec.focusTan = 0.0f; |
---|
910 | pksrec.focusRot = 0.0f; |
---|
911 | |
---|
912 | // Find the appropriate entry in the WEATHER subtable. |
---|
913 | //Bool cHaveStateTab=Table::isReadable(cPKSMS.stateTableName()); |
---|
914 | Bool cHaveWeatherTab = Table::isReadable(cPKSMS.weatherTableName()); |
---|
915 | Int weatherIdx=-1; |
---|
916 | if (cHaveWeatherTab) { |
---|
917 | Vector<Double> wTimes = cWeatherTimeCol.getColumn(); |
---|
918 | for (weatherIdx = wTimes.nelements()-1; weatherIdx >= 0; weatherIdx--) { |
---|
919 | if (cWeatherTimeCol(weatherIdx) <= time) { |
---|
920 | break; |
---|
921 | } |
---|
922 | } |
---|
923 | } |
---|
924 | |
---|
925 | if (weatherIdx < 0 || !cHaveWeatherTab) { |
---|
926 | // No appropriate WEATHER entry. |
---|
927 | pksrec.temperature = 0.0f; |
---|
928 | pksrec.pressure = 0.0f; |
---|
929 | pksrec.humidity = 0.0f; |
---|
930 | } else { |
---|
931 | pksrec.temperature = cTemperatureCol(weatherIdx); |
---|
932 | pksrec.pressure = cPressureCol(weatherIdx); |
---|
933 | pksrec.humidity = cHumidityCol(weatherIdx); |
---|
934 | } |
---|
935 | |
---|
936 | pksrec.windSpeed = 0.0f; |
---|
937 | pksrec.windAz = 0.0f; |
---|
938 | |
---|
939 | pksrec.refBeam = 0; |
---|
940 | pksrec.beamNo = ibeam + 1; |
---|
941 | |
---|
942 | //pointing/azel |
---|
943 | MVPosition mvpos(antennaCols.position()(cAntId[0])); |
---|
944 | MPosition mp(mvpos); |
---|
945 | Quantum<Double> qt(time,"s"); |
---|
946 | MVEpoch mvt(qt); |
---|
947 | MEpoch me(mvt); |
---|
948 | MeasFrame frame(mp, me); |
---|
949 | MDirection md; |
---|
950 | pksrec.pCode = 0; |
---|
951 | pksrec.rateAge = 0.0f; |
---|
952 | pksrec.paRate = 0.0f; |
---|
953 | if (cGetPointing) { |
---|
954 | //cerr << "get pointing data ...." << endl; |
---|
955 | ROScalarColumn<Int> pAntIdCol ; |
---|
956 | ROScalarColumn<Double> psTimeCol ; |
---|
957 | Table ptTable = cPKSMS.pointing() ; |
---|
958 | MSPointing selPtTab( ptTable( ptTable.col("ANTENNA_ID") == cAntId[0] ) ) ; |
---|
959 | pAntIdCol.attach( selPtTab, "ANTENNA_ID" ) ; |
---|
960 | Vector<Int> antIds = pAntIdCol.getColumn() ; |
---|
961 | psTimeCol.attach( selPtTab, "TIME" ) ; |
---|
962 | Vector<Double> pTimes = psTimeCol.getColumn(); |
---|
963 | Bool doInterp = False ; |
---|
964 | Int PtIdx=-1; |
---|
965 | for (PtIdx = pTimes.nelements()-1; PtIdx >= 0; PtIdx--) { |
---|
966 | if ( pTimes[PtIdx] == time ) { |
---|
967 | break ; |
---|
968 | } |
---|
969 | else if ( pTimes[PtIdx] < time ) { |
---|
970 | if ( PtIdx != pTimes.nelements()-1 ) { |
---|
971 | doInterp = True ; |
---|
972 | } |
---|
973 | break ; |
---|
974 | } |
---|
975 | } |
---|
976 | if ( PtIdx == -1 ) { |
---|
977 | PtIdx = 0 ; |
---|
978 | } |
---|
979 | //cerr << "got index=" << PtIdx << endl; |
---|
980 | Matrix<Double> pointingDir = cPointingCol(PtIdx); |
---|
981 | ROMSPointingColumns PtCols( selPtTab ) ; |
---|
982 | Vector<Double> pointingDirVec ; |
---|
983 | if ( doInterp ) { |
---|
984 | Double dt1 = time - pTimes[PtIdx] ; |
---|
985 | Double dt2 = pTimes[PtIdx+1] - time ; |
---|
986 | Vector<Double> dirVec1 = pointingDir.column(0) ; |
---|
987 | Matrix<Double> pointingDir2 = cPointingCol(PtIdx+1) ; |
---|
988 | Vector<Double> dirVec2 = pointingDir2.column(0) ; |
---|
989 | pointingDirVec = (dt1*dirVec2+dt2*dirVec1)/(dt1+dt2) ; |
---|
990 | Vector<MDirection> vmd1(1) ; |
---|
991 | Vector<MDirection> vmd2(1) ; |
---|
992 | PtCols.directionMeasCol().get(PtIdx,vmd1) ; |
---|
993 | Vector<Double> angle1 = vmd1(0).getAngle().getValue("rad") ; |
---|
994 | PtCols.directionMeasCol().get(PtIdx+1,vmd2) ; |
---|
995 | Vector<Double> angle2 = vmd2(0).getAngle().getValue("rad") ; |
---|
996 | Vector<Double> angle = (dt1*angle2+dt2*angle1)/(dt1+dt2) ; |
---|
997 | Quantum< Vector<Double> > qangle( angle, "rad" ) ; |
---|
998 | String typeStr = vmd1(0).getRefString() ; |
---|
999 | //cerr << "vmd1.getRefString()=" << typeStr << endl ; |
---|
1000 | MDirection::Types mdType ; |
---|
1001 | MDirection::getType( mdType, typeStr ) ; |
---|
1002 | //cerr << "mdType=" << mdType << endl ; |
---|
1003 | md = MDirection( qangle, mdType ) ; |
---|
1004 | //cerr << "md=" << md.getAngle().getValue("rad") << endl ; |
---|
1005 | } |
---|
1006 | else { |
---|
1007 | pointingDirVec = pointingDir.column(0) ; |
---|
1008 | Vector<MDirection> vmd(1); |
---|
1009 | PtCols.directionMeasCol().get(PtIdx,vmd); |
---|
1010 | md = vmd[0]; |
---|
1011 | } |
---|
1012 | // put J2000 coordinates in "direction" |
---|
1013 | if (cDirRef =="J2000") { |
---|
1014 | pksrec.direction = pointingDirVec ; |
---|
1015 | } |
---|
1016 | else { |
---|
1017 | pksrec.direction = |
---|
1018 | MDirection::Convert(md, MDirection::Ref(MDirection::J2000, |
---|
1019 | frame) |
---|
1020 | )().getAngle("rad").getValue(); |
---|
1021 | |
---|
1022 | } |
---|
1023 | uInt ncols = pointingDir.ncolumn(); |
---|
1024 | pksrec.scanRate.resize(2); |
---|
1025 | if (ncols == 1) { |
---|
1026 | pksrec.scanRate = 0.0f; |
---|
1027 | } else { |
---|
1028 | pksrec.scanRate(0) = pointingDir.column(1)(0); |
---|
1029 | pksrec.scanRate(1) = pointingDir.column(1)(1); |
---|
1030 | } |
---|
1031 | } |
---|
1032 | else { |
---|
1033 | // Get direction from FIELD table |
---|
1034 | // here, assume direction to be the field direction not pointing |
---|
1035 | Matrix<Double> delayDir = cFieldDelayDirCol(fieldId); |
---|
1036 | pksrec.direction = delayDir.column(0); |
---|
1037 | uInt ncols = delayDir.ncolumn(); |
---|
1038 | pksrec.scanRate.resize(2); |
---|
1039 | if (ncols == 1) { |
---|
1040 | pksrec.scanRate = 0.0f; |
---|
1041 | } else { |
---|
1042 | pksrec.scanRate(0) = delayDir.column(1)(0); |
---|
1043 | pksrec.scanRate(1) = delayDir.column(1)(1); |
---|
1044 | } |
---|
1045 | } |
---|
1046 | // caluculate azimuth and elevation |
---|
1047 | // first, get the reference frame |
---|
1048 | /** |
---|
1049 | MVPosition mvpos(antennaCols.position()(0)); |
---|
1050 | MPosition mp(mvpos); |
---|
1051 | Quantum<Double> qt(time,"s"); |
---|
1052 | MVEpoch mvt(qt); |
---|
1053 | MEpoch me(mvt); |
---|
1054 | MeasFrame frame(mp, me); |
---|
1055 | **/ |
---|
1056 | // |
---|
1057 | ROMSFieldColumns fldCols(cPKSMS.field()); |
---|
1058 | Vector<MDirection> vmd(1); |
---|
1059 | //MDirection md; |
---|
1060 | fldCols.delayDirMeasCol().get(fieldId,vmd); |
---|
1061 | md = vmd[0]; |
---|
1062 | //Vector<Double> dircheck = md.getAngle("rad").getValue(); |
---|
1063 | //cerr<<"dircheck="<<dircheck<<endl; |
---|
1064 | |
---|
1065 | Vector<Double> azel = |
---|
1066 | MDirection::Convert(md, MDirection::Ref(MDirection::AZEL, |
---|
1067 | frame) |
---|
1068 | )().getAngle("rad").getValue(); |
---|
1069 | //cerr<<"azel="<<azel<<endl; |
---|
1070 | pksrec.azimuth = azel[0]; |
---|
1071 | pksrec.elevation = azel[1]; |
---|
1072 | |
---|
1073 | // Get Tsys assuming that entries in the SYSCAL table match the main table. |
---|
1074 | if (cHaveTsys) { |
---|
1075 | Int nTsysColRow = cTsysCol.nrow(); |
---|
1076 | if (nTsysColRow != cNRow) { |
---|
1077 | cHaveTsys=0; |
---|
1078 | } |
---|
1079 | } |
---|
1080 | if (cHaveTsys) { |
---|
1081 | cTsysCol.get(cIdx, pksrec.tsys, True); |
---|
1082 | } else { |
---|
1083 | Int numReceptor; |
---|
1084 | cNumReceptorCol.get(0, numReceptor); |
---|
1085 | pksrec.tsys.resize(numReceptor); |
---|
1086 | pksrec.tsys = 1.0f; |
---|
1087 | } |
---|
1088 | cSigmaCol.get(cIdx, pksrec.sigma, True); |
---|
1089 | |
---|
1090 | //get Tcal if available |
---|
1091 | if (cHaveTcal) { |
---|
1092 | Int nTcalColRow = cTcalCol.nrow(); |
---|
1093 | uInt nBeam = cBeams.nelements(); |
---|
1094 | uInt nIF = cIFs.nelements(); |
---|
1095 | uInt nrws = nBeam * nIF; |
---|
1096 | if (nTcalColRow > 0) { |
---|
1097 | // find tcal match with the data with the data time stamp |
---|
1098 | Double mjds = pksrec.mjd*(24*3600); |
---|
1099 | Double dtcalTime; |
---|
1100 | if ( pksrec.mjd > lastmjd || cIdx==0 ) { |
---|
1101 | //Table tmptab = cSysCalTab(near(cSysCalTab.col("TIME"),mjds)); |
---|
1102 | tmptab = cSysCalTab(near(cSysCalTab.col("TIME"),mjds), nrws); |
---|
1103 | //DEBUG |
---|
1104 | //if (cIdx == 0) { |
---|
1105 | // cerr<<"inital table retrieved"<<endl; |
---|
1106 | //} |
---|
1107 | |
---|
1108 | } |
---|
1109 | |
---|
1110 | if (nBeam == 1) { |
---|
1111 | tmptab2 = tmptab( tmptab.col("SPECTRAL_WINDOW_ID") == iIF, 1); |
---|
1112 | } else { |
---|
1113 | tmptab2 = tmptab( tmptab.col("SPECTRAL_WINDOW_ID") == iIF && |
---|
1114 | tmptab.col("FEED_ID") == ibeam , 1); |
---|
1115 | } |
---|
1116 | //cerr<<"first subtab rows="<<tmptab.nrow()<<endl; |
---|
1117 | int syscalrow = tmptab2.nrow(); |
---|
1118 | ROArrayColumn<Float> tcalCol(tmptab2, "TCAL"); |
---|
1119 | ROScalarColumn<Double> tcalTimeCol(tmptab2, "TIME"); |
---|
1120 | if (syscalrow==0) { |
---|
1121 | os << LogIO::NORMAL |
---|
1122 | <<"Cannot find any matching Tcal at/near the data timestamp." |
---|
1123 | << " Set Tcal=0.0" << LogIO::POST ; |
---|
1124 | } else { |
---|
1125 | tcalCol.get(0, pksrec.tcal); |
---|
1126 | tcalTimeCol.get(0,dtcalTime); |
---|
1127 | pksrec.tcalTime = MVTime(dtcalTime/(24*3600)).string(MVTime::YMD); |
---|
1128 | //DEBUG |
---|
1129 | //cerr<<"cIdx:"<<cIdx<<" tcal="<<tcal<<" tcalTime="<<tcalTime<<endl; |
---|
1130 | tmptab.markForDelete(); |
---|
1131 | tmptab2.markForDelete(); |
---|
1132 | } |
---|
1133 | } |
---|
1134 | lastmjd = pksrec.mjd; |
---|
1135 | } |
---|
1136 | |
---|
1137 | // Calibration factors (if available). |
---|
1138 | pksrec.calFctr.resize(cNPol(iIF)); |
---|
1139 | if (cHaveCalFctr) { |
---|
1140 | cCalFctrCol.get(cIdx, pksrec.calFctr); |
---|
1141 | } else { |
---|
1142 | pksrec.calFctr = 0.0f; |
---|
1143 | } |
---|
1144 | |
---|
1145 | // Baseline parameters (if available). |
---|
1146 | if (cHaveBaseLin) { |
---|
1147 | pksrec.baseLin.resize(2,cNPol(iIF)); |
---|
1148 | cBaseLinCol.get(cIdx, pksrec.baseLin); |
---|
1149 | |
---|
1150 | pksrec.baseSub.resize(24,cNPol(iIF)); |
---|
1151 | cBaseSubCol.get(cIdx, pksrec.baseSub); |
---|
1152 | |
---|
1153 | } else { |
---|
1154 | pksrec.baseLin.resize(0,0); |
---|
1155 | pksrec.baseSub.resize(0,0); |
---|
1156 | } |
---|
1157 | |
---|
1158 | |
---|
1159 | // Get spectral data. |
---|
1160 | if (cGetSpectra) { |
---|
1161 | Matrix<Float> tmpData; |
---|
1162 | Matrix<Bool> tmpFlag; |
---|
1163 | if (cHaveDataCol) { |
---|
1164 | Matrix<Complex> tmpCmplxData; |
---|
1165 | Matrix<Float> tmpReData; |
---|
1166 | Matrix<Float> tmpImData; |
---|
1167 | //cerr<<"reading spectra..."<<endl; |
---|
1168 | //# TODO - should have a flag to user to select DATA or CORRECTED_DATA |
---|
1169 | //# currently just automatically determined, --- read CORRECTED one |
---|
1170 | //# if the column exist. |
---|
1171 | if (cHaveCorrectedDataCol) { |
---|
1172 | cCorrectedDataCol.getSlice(cIdx, cDataSel(iIF), tmpCmplxData, True); |
---|
1173 | } else { |
---|
1174 | cDataCol.getSlice(cIdx, cDataSel(iIF), tmpCmplxData, True); |
---|
1175 | } |
---|
1176 | tmpReData = real(tmpCmplxData); |
---|
1177 | tmpImData = imag(tmpCmplxData); |
---|
1178 | tmpData = sqrt(tmpReData*tmpReData + tmpImData*tmpImData); |
---|
1179 | } else { |
---|
1180 | cFloatDataCol.getSlice(cIdx, cDataSel(iIF), tmpData, True); |
---|
1181 | } |
---|
1182 | cFlagCol.getSlice(cIdx, cDataSel(iIF), tmpFlag, True); |
---|
1183 | |
---|
1184 | // Transpose spectra. |
---|
1185 | Int nPol = tmpData.nrow(); |
---|
1186 | pksrec.spectra.resize(nChan, nPol); |
---|
1187 | pksrec.flagged.resize(nChan, nPol); |
---|
1188 | if (cEndChan(iIF) >= cStartChan(iIF)) { |
---|
1189 | // Simple transposition. |
---|
1190 | for (Int ipol = 0; ipol < nPol; ipol++) { |
---|
1191 | for (Int ichan = 0; ichan < nChan; ichan++) { |
---|
1192 | pksrec.spectra(ichan,ipol) = tmpData(ipol,ichan); |
---|
1193 | pksrec.flagged(ichan,ipol) = tmpFlag(ipol,ichan); |
---|
1194 | } |
---|
1195 | } |
---|
1196 | |
---|
1197 | } else { |
---|
1198 | // Transpose with inversion. |
---|
1199 | Int jchan = nChan - 1; |
---|
1200 | for (Int ipol = 0; ipol < nPol; ipol++) { |
---|
1201 | for (Int ichan = 0; ichan < nChan; ichan++, jchan--) { |
---|
1202 | pksrec.spectra(ichan,ipol) = tmpData(ipol,jchan); |
---|
1203 | pksrec.flagged(ichan,ipol) = tmpFlag(ipol,jchan); |
---|
1204 | } |
---|
1205 | } |
---|
1206 | } |
---|
1207 | |
---|
1208 | // Row-based flagging info. (True:1, False:0) |
---|
1209 | pksrec.flagrow = (cFlagRowCol(cIdx) ? 1 : 0); |
---|
1210 | } |
---|
1211 | |
---|
1212 | // Get cross-polarization data. |
---|
1213 | if (cGetXPol) { |
---|
1214 | //cerr<<"cGetXPol="<<cGetXPol<<endl; |
---|
1215 | //cerr<<"cHaveXCalFctr="<<cHaveXCalFctr<<endl; |
---|
1216 | |
---|
1217 | if (cHaveXCalFctr) { |
---|
1218 | cXCalFctrCol.get(cIdx, pksrec.xCalFctr); |
---|
1219 | } else { |
---|
1220 | pksrec.xCalFctr = Complex(0.0f, 0.0f); |
---|
1221 | } |
---|
1222 | |
---|
1223 | if(!cALMA) { |
---|
1224 | cDataCol.get(cIdx, pksrec.xPol, True); |
---|
1225 | |
---|
1226 | if (cEndChan(iIF) < cStartChan(iIF)) { |
---|
1227 | Complex ctmp; |
---|
1228 | Int jchan = nChan - 1; |
---|
1229 | for (Int ichan = 0; ichan < nChan/2; ichan++, jchan--) { |
---|
1230 | ctmp = pksrec.xPol(ichan); |
---|
1231 | pksrec.xPol(ichan) = pksrec.xPol(jchan); |
---|
1232 | pksrec.xPol(jchan) = ctmp; |
---|
1233 | } |
---|
1234 | } |
---|
1235 | } |
---|
1236 | } |
---|
1237 | /** |
---|
1238 | cerr<<"scanNo="<<scanNo<<endl; |
---|
1239 | cerr<<"cycleNo="<<cycleNo<<endl; |
---|
1240 | cerr<<"mjd="<<mjd<<endl; |
---|
1241 | cerr<<"interval="<<interval<<endl; |
---|
1242 | cerr<<"fieldName="<<fieldName<<endl; |
---|
1243 | cerr<<"srcNmae="<<srcName<<endl; |
---|
1244 | cerr<<"srcDir="<<srcDir<<endl; |
---|
1245 | cerr<<"srcPM="<<srcPM<<endl; |
---|
1246 | cerr<<"srcVel="<<srcVel<<endl; |
---|
1247 | cerr<<"obsMode="<<obsMode<<endl; |
---|
1248 | cerr<<"IFno="<<IFno<<endl; |
---|
1249 | cerr<<"refFreq="<<refFreq<<endl; |
---|
1250 | cerr<<"tcal="<<tcal<<endl; |
---|
1251 | cerr<<"direction="<<direction<<endl; |
---|
1252 | cerr<<"scanRate="<<scanRate<<endl; |
---|
1253 | cerr<<"tsys="<<tsys<<endl; |
---|
1254 | cerr<<"sigma="<<sigma<<endl; |
---|
1255 | cerr<<"calFctr="<<calFctr<<endl; |
---|
1256 | cerr<<"baseLin="<<baseLin<<endl; |
---|
1257 | cerr<<"baseSub="<<baseSub<<endl; |
---|
1258 | cerr<<"spectra="<<spectra.shape()<<endl; |
---|
1259 | cerr<<"flagged="<<flagged.shape()<<endl; |
---|
1260 | cerr<<"xCalFctr="<<xCalFctr<<endl; |
---|
1261 | cerr<<"xPol="<<xPol<<endl; |
---|
1262 | **/ |
---|
1263 | cIdx++; |
---|
1264 | |
---|
1265 | return 0; |
---|
1266 | } |
---|
1267 | |
---|
1268 | //--------------------------------------------------------- PKSMS2reader::read |
---|
1269 | |
---|
1270 | // Read the next data record, just the basics. |
---|
1271 | |
---|
1272 | Int PKSMS2reader::read( |
---|
1273 | Int &IFno, |
---|
1274 | Vector<Float> &tsys, |
---|
1275 | Vector<Float> &calFctr, |
---|
1276 | Matrix<Float> &baseLin, |
---|
1277 | Matrix<Float> &baseSub, |
---|
1278 | Matrix<Float> &spectra, |
---|
1279 | Matrix<uChar> &flagged) |
---|
1280 | { |
---|
1281 | if (!cMSopen) { |
---|
1282 | return 1; |
---|
1283 | } |
---|
1284 | |
---|
1285 | // Check for EOF. |
---|
1286 | if (cIdx >= cNRow) { |
---|
1287 | return -1; |
---|
1288 | } |
---|
1289 | |
---|
1290 | // Find the next selected beam and IF. |
---|
1291 | Int ibeam; |
---|
1292 | Int iIF; |
---|
1293 | Int iDataDesc; |
---|
1294 | while (True) { |
---|
1295 | ibeam = cBeamNoCol(cIdx); |
---|
1296 | //iIF = cDataDescIdCol(cIdx); |
---|
1297 | iDataDesc = cDataDescIdCol(cIdx); |
---|
1298 | iIF = cSpWinIdCol(iDataDesc); |
---|
1299 | if (cBeams(ibeam) && cIFs(iIF)) { |
---|
1300 | break; |
---|
1301 | } |
---|
1302 | |
---|
1303 | // Check for EOF. |
---|
1304 | if (++cIdx >= cNRow) { |
---|
1305 | return -1; |
---|
1306 | } |
---|
1307 | } |
---|
1308 | |
---|
1309 | IFno = iIF + 1; |
---|
1310 | // Get Tsys assuming that entries in the SYSCAL table match the main table. |
---|
1311 | cTsysCol.get(cIdx, tsys, True); |
---|
1312 | |
---|
1313 | // Calibration factors (if available). |
---|
1314 | if (cHaveCalFctr) { |
---|
1315 | cCalFctrCol.get(cIdx, calFctr, True); |
---|
1316 | } else { |
---|
1317 | calFctr.resize(cNPol(iIF)); |
---|
1318 | calFctr = 0.0f; |
---|
1319 | } |
---|
1320 | |
---|
1321 | // Baseline parameters (if available). |
---|
1322 | if (cHaveBaseLin) { |
---|
1323 | baseLin.resize(2,cNPol(iIF)); |
---|
1324 | cBaseLinCol.get(cIdx, baseLin); |
---|
1325 | |
---|
1326 | baseSub.resize(24,cNPol(iIF)); |
---|
1327 | cBaseSubCol.get(cIdx, baseSub); |
---|
1328 | |
---|
1329 | } else { |
---|
1330 | baseLin.resize(0,0); |
---|
1331 | baseSub.resize(0,0); |
---|
1332 | } |
---|
1333 | |
---|
1334 | if (cGetSpectra) { |
---|
1335 | // Get spectral data. |
---|
1336 | Matrix<Float> tmpData; |
---|
1337 | Matrix<Bool> tmpFlag; |
---|
1338 | if (cHaveDataCol) { |
---|
1339 | Matrix<Complex> tmpCmplxData; |
---|
1340 | cDataCol.getSlice(cIdx, cDataSel(iIF), tmpCmplxData, True); |
---|
1341 | tmpData = real(tmpCmplxData); |
---|
1342 | } else { |
---|
1343 | cFloatDataCol.getSlice(cIdx, cDataSel(iIF), tmpData, True); |
---|
1344 | } |
---|
1345 | cFlagCol.getSlice(cIdx, cDataSel(iIF), tmpFlag, True); |
---|
1346 | |
---|
1347 | // Transpose spectra. |
---|
1348 | Int nChan = tmpData.ncolumn(); |
---|
1349 | Int nPol = tmpData.nrow(); |
---|
1350 | spectra.resize(nChan, nPol); |
---|
1351 | flagged.resize(nChan, nPol); |
---|
1352 | if (cEndChan(iIF) >= cStartChan(iIF)) { |
---|
1353 | // Simple transposition. |
---|
1354 | for (Int ipol = 0; ipol < nPol; ipol++) { |
---|
1355 | for (Int ichan = 0; ichan < nChan; ichan++) { |
---|
1356 | spectra(ichan,ipol) = tmpData(ipol,ichan); |
---|
1357 | flagged(ichan,ipol) = tmpFlag(ipol,ichan); |
---|
1358 | } |
---|
1359 | } |
---|
1360 | |
---|
1361 | } else { |
---|
1362 | // Transpose with inversion. |
---|
1363 | Int jchan = nChan - 1; |
---|
1364 | for (Int ipol = 0; ipol < nPol; ipol++) { |
---|
1365 | for (Int ichan = 0; ichan < nChan; ichan++, jchan--) { |
---|
1366 | spectra(ichan,ipol) = tmpData(ipol,jchan); |
---|
1367 | flagged(ichan,ipol) = tmpFlag(ipol,jchan); |
---|
1368 | } |
---|
1369 | } |
---|
1370 | } |
---|
1371 | } |
---|
1372 | |
---|
1373 | cIdx++; |
---|
1374 | |
---|
1375 | return 0; |
---|
1376 | } |
---|
1377 | |
---|
1378 | //-------------------------------------------------------- PKSMS2reader::close |
---|
1379 | |
---|
1380 | // Close the MS. |
---|
1381 | |
---|
1382 | void PKSMS2reader::close() |
---|
1383 | { |
---|
1384 | cPKSMS = MeasurementSet(); |
---|
1385 | cMSopen = False; |
---|
1386 | } |
---|
1387 | |
---|
1388 | //-------------------------------------------------------- PKSMS2reader::splitAntenanSelectionString |
---|
1389 | |
---|
1390 | // split antenna selection string |
---|
1391 | // delimiter is ',' |
---|
1392 | |
---|
1393 | Vector<String> PKSMS2reader::splitAntennaSelectionString( const String s ) |
---|
1394 | { |
---|
1395 | Char delim = ',' ; |
---|
1396 | Int n = s.freq( delim ) + 1 ; |
---|
1397 | Vector<String> antlist ; |
---|
1398 | string sl[n] ; |
---|
1399 | Int numSubstr = split( s, sl, n, "," ); |
---|
1400 | antlist.resize( numSubstr ) ; |
---|
1401 | for ( Int i = 0 ; i < numSubstr ; i++ ) { |
---|
1402 | antlist[i] = String( sl[i] ) ; |
---|
1403 | antlist[i].trim() ; |
---|
1404 | } |
---|
1405 | //cerr << "antlist = " << antlist << endl ; |
---|
1406 | return antlist ; |
---|
1407 | } |
---|
1408 | |
---|
1409 | //-------------------------------------------------------- PKSMS2reader::setupAntennaList |
---|
1410 | |
---|
1411 | // Fill cAntenna and cAntId |
---|
1412 | |
---|
1413 | void PKSMS2reader::setupAntennaList( const String s ) |
---|
1414 | { |
---|
1415 | LogIO os( LogOrigin( "PKSMS2reader", "setupAntennaList()", WHERE ) ) ; |
---|
1416 | //cerr << "antenna specification: " << s << endl ; |
---|
1417 | ROMSAntennaColumns antennaCols(cPKSMS.antenna()); |
---|
1418 | ROScalarColumn<String> antNames = antennaCols.name(); |
---|
1419 | Int nrow = antNames.nrow() ; |
---|
1420 | Vector<String> antlist = splitAntennaSelectionString( s ) ; |
---|
1421 | Int len = antlist.size() ; |
---|
1422 | Vector<Int> AntId( len ) ; |
---|
1423 | Regex re( "[0-9]+" ) ; |
---|
1424 | for ( Int i = 0 ; i < len ; i++ ) { |
---|
1425 | if ( antlist[i].matches( re ) ) { |
---|
1426 | AntId[i] = atoi( antlist[i].c_str() ) ; |
---|
1427 | if ( AntId[i] >= nrow ) { |
---|
1428 | os << LogIO::SEVERE << "Antenna index out of range: " << AntId[i] << LogIO::EXCEPTION ; |
---|
1429 | } |
---|
1430 | } |
---|
1431 | else { |
---|
1432 | AntId[i] = -1 ; |
---|
1433 | for ( uInt j = 0 ; j < antNames.nrow() ; j++ ) { |
---|
1434 | if ( antlist[i] == antNames(j) ) { |
---|
1435 | AntId[i] = j ; |
---|
1436 | break ; |
---|
1437 | } |
---|
1438 | } |
---|
1439 | if ( AntId[i] == -1 ) { |
---|
1440 | os << LogIO::SEVERE << "Specified antenna name not found: " << antlist[i] << LogIO::EXCEPTION ; |
---|
1441 | } |
---|
1442 | } |
---|
1443 | } |
---|
1444 | //cerr << "AntId = " << AntId << endl ; |
---|
1445 | vector<Int> uniqId ; |
---|
1446 | uniqId.push_back( AntId(0) ) ; |
---|
1447 | for ( uInt i = 1 ; i < AntId.size() ; i++ ) { |
---|
1448 | if ( count(uniqId.begin(),uniqId.end(),AntId[i]) == 0 ) { |
---|
1449 | uniqId.push_back( AntId[i] ) ; |
---|
1450 | } |
---|
1451 | } |
---|
1452 | Vector<Int> newAntId( uniqId ) ; |
---|
1453 | cAntId.assign( newAntId ) ; |
---|
1454 | //cerr << "cAntId = " << cAntId << endl ; |
---|
1455 | } |
---|