[470] | 1 | //#--------------------------------------------------------------------------- |
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[28] | 2 | //# SDWriter.cc: ASAP class to write out single dish spectra. |
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| 3 | //#--------------------------------------------------------------------------- |
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| 4 | //# Copyright (C) 2004 |
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[125] | 5 | //# ATNF |
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[28] | 6 | //# |
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| 7 | //# This program is free software; you can redistribute it and/or modify it |
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| 8 | //# under the terms of the GNU General Public License as published by the Free |
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| 9 | //# Software Foundation; either version 2 of the License, or (at your option) |
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| 10 | //# any later version. |
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| 11 | //# |
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| 12 | //# This program is distributed in the hope that it will be useful, but |
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| 13 | //# WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 14 | //# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
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| 15 | //# Public License for more details. |
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| 16 | //# |
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| 17 | //# You should have received a copy of the GNU General Public License along |
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| 18 | //# with this program; if not, write to the Free Software Foundation, Inc., |
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| 19 | //# 675 Massachusetts Ave, Cambridge, MA 02139, USA. |
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| 20 | //# |
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| 21 | //# Correspondence concerning this software should be addressed as follows: |
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| 22 | //# Internet email: Malte.Marquarding@csiro.au |
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| 23 | //# Postal address: Malte Marquarding, |
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| 24 | //# Australia Telescope National Facility, |
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| 25 | //# P.O. Box 76, |
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| 26 | //# Epping, NSW, 2121, |
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| 27 | //# AUSTRALIA |
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| 28 | //# |
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| 29 | //# $Id: SDWriter.cc 632 2005-05-09 05:06:54Z None $ |
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| 30 | //#--------------------------------------------------------------------------- |
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| 31 | |
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| 32 | #include <string> |
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| 33 | |
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[81] | 34 | #include <casa/aips.h> |
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[470] | 35 | #include <casa/Arrays/Array.h> |
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| 36 | #include <casa/Arrays/Vector.h> |
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[81] | 37 | #include <casa/BasicSL/Complex.h> |
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| 38 | #include <casa/Utilities/CountedPtr.h> |
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[470] | 39 | #include <casa/Utilities/Assert.h> |
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[28] | 40 | |
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| 41 | #include <atnf/PKSIO/PKSMS2writer.h> |
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| 42 | #include <atnf/PKSIO/PKSSDwriter.h> |
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| 43 | |
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[324] | 44 | #include <tables/Tables/ArrayColumn.h> |
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| 45 | |
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| 46 | |
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[470] | 47 | |
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| 48 | |
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[60] | 49 | #include "SDContainer.h" |
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| 50 | #include "SDMemTable.h" |
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| 51 | #include "SDWriter.h" |
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[192] | 52 | #include "SDFITSImageWriter.h" |
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[199] | 53 | #include "SDAsciiWriter.h" |
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[470] | 54 | #include "SDPol.h" |
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[28] | 55 | |
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[125] | 56 | using namespace casa; |
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[83] | 57 | using namespace asap; |
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[28] | 58 | |
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| 59 | //--------------------------------------------------------- SDWriter::SDWriter |
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| 60 | |
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| 61 | // Default constructor. |
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| 62 | |
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[125] | 63 | SDWriter::SDWriter(const std::string &format) |
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[28] | 64 | { |
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| 65 | cFormat = format; |
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[192] | 66 | // |
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[450] | 67 | String t(cFormat); |
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| 68 | t.upcase(); |
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| 69 | if (t== "MS2") { |
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[28] | 70 | cWriter = new PKSMS2writer(); |
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[450] | 71 | } else if (t== "SDFITS") { |
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[28] | 72 | cWriter = new PKSSDwriter(); |
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[450] | 73 | } else if (t== "FITS") { |
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[192] | 74 | cWriter = 0; |
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[450] | 75 | } else if (t== "ASCII") { |
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[199] | 76 | cWriter = 0; |
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[450] | 77 | } else { |
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| 78 | throw (AipsError("Unrecognized Format")); |
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[28] | 79 | } |
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| 80 | } |
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| 81 | |
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| 82 | //-------------------------------------------------------- SDWriter::~SDWriter |
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| 83 | |
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| 84 | // Destructor. |
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| 85 | |
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| 86 | SDWriter::~SDWriter() |
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| 87 | { |
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[192] | 88 | if (cWriter) { |
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| 89 | delete cWriter; |
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| 90 | } |
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[28] | 91 | } |
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| 92 | |
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| 93 | //-------------------------------------------------------- SDWriter::setFormat |
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| 94 | |
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| 95 | // Reset the output format. |
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| 96 | |
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[192] | 97 | Int SDWriter::setFormat(const std::string &format) |
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[28] | 98 | { |
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| 99 | if (format != cFormat) { |
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[192] | 100 | if (cWriter) delete cWriter; |
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[450] | 101 | } |
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[192] | 102 | // |
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[450] | 103 | cFormat = format; |
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| 104 | String t(cFormat); |
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| 105 | t.upcase(); |
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| 106 | if (t== "MS2") { |
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| 107 | cWriter = new PKSMS2writer(); |
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| 108 | } else if (t== "SDFITS") { |
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| 109 | cWriter = new PKSSDwriter(); |
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| 110 | } else if (t== "FITS") { |
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| 111 | cWriter = 0; |
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| 112 | } else if (t== "ASCII") { |
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| 113 | cWriter = 0; |
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| 114 | } else { |
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| 115 | throw (AipsError("Unrecognized Format")); |
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[28] | 116 | } |
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| 117 | return 0; |
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| 118 | } |
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| 119 | |
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| 120 | //------------------------------------------------------------ SDWriter::write |
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| 121 | |
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| 122 | // Write an SDMemTable to file in the desired format, closing the file when |
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| 123 | // finished. |
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| 124 | |
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[324] | 125 | Int SDWriter::write(const CountedPtr<SDMemTable> in, |
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[442] | 126 | const std::string &filename, Bool toStokes) |
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[28] | 127 | { |
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[192] | 128 | |
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| 129 | // Image FITS |
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| 130 | |
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| 131 | if (cFormat=="FITS") { |
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| 132 | Bool verbose = True; |
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| 133 | SDFITSImageWriter iw; |
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[442] | 134 | if (iw.write(*in, filename, verbose, toStokes)) { |
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[192] | 135 | return 0; |
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| 136 | } else { |
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| 137 | return 1; |
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| 138 | } |
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[199] | 139 | } else if (cFormat=="ASCII") { |
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| 140 | SDAsciiWriter iw; |
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[442] | 141 | if (iw.write(*in, filename, toStokes)) { |
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[199] | 142 | return 0; |
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| 143 | } else { |
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| 144 | return 1; |
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| 145 | } |
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| 146 | } |
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[192] | 147 | |
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| 148 | // MS or SDFITS |
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| 149 | |
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[28] | 150 | // Extract the header from the table. |
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[324] | 151 | SDHeader hdr = in->getSDHeader(); |
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| 152 | const Int nPol = hdr.npol; |
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| 153 | const Int nChan = hdr.nchan; |
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[28] | 154 | |
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[324] | 155 | // Get Freq table |
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| 156 | |
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| 157 | SDFrequencyTable sdft = in->getSDFreqTable(); |
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| 158 | Vector<Double> restFreqs; |
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| 159 | String restFreqUnit; |
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| 160 | sdft.restFrequencies(restFreqs, restFreqUnit); |
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| 161 | Double restFreq = 0.0; |
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| 162 | if (restFreqs.nelements()>0) { |
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| 163 | Quantum<Double> rF(restFreqs(0), Unit(restFreqUnit)); |
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| 164 | restFreq = rF.getValue(Unit("Hz")); |
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| 165 | } |
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| 166 | |
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| 167 | // Table columns |
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| 168 | |
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| 169 | const Table table = in->table(); |
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| 170 | ROArrayColumn<uInt> freqIDCol(table, "FREQID"); |
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| 171 | Vector<uInt> freqIDs; |
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| 172 | |
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[28] | 173 | // Create the output file and write static data. |
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| 174 | Int status; |
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| 175 | if (status = cWriter->create(filename, hdr.observer, hdr.project, |
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| 176 | hdr.antennaname, hdr.antennaposition, |
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| 177 | hdr.obstype, hdr.equinox, hdr.freqref, |
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| 178 | nChan, nPol, False, False)) { |
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| 179 | cerr << "Failed to create output file." << endl; |
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| 180 | return 1; |
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| 181 | } |
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| 182 | |
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| 183 | Int scanNo = -1; |
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| 184 | Int cycleNo; |
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| 185 | Double mjd0 = 0.0; |
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[470] | 186 | // |
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| 187 | Array<Float> spectra, tSys, stokes; |
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| 188 | Array<uChar> flags; |
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| 189 | Bool doLinear = True; |
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| 190 | // |
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[28] | 191 | Int count = 0; |
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[324] | 192 | for (Int iRow = 0; iRow < in->nRow(); iRow++) { |
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[28] | 193 | // Extract the next integration from the table. |
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[324] | 194 | SDContainer sd = in->getSDContainer(iRow); |
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[28] | 195 | if (sd.scanid != scanNo) { |
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| 196 | scanNo = sd.scanid; |
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| 197 | mjd0 = sd.timestamp; |
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| 198 | cycleNo = 1; |
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| 199 | } else if (fabs(sd.timestamp-mjd0) > sd.interval) { |
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| 200 | cycleNo++; |
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| 201 | } |
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| 202 | |
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[324] | 203 | // Get FreqID vector |
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| 204 | freqIDCol.get(iRow, freqIDs); |
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| 205 | |
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[470] | 206 | // Get Stokes array (all beams/IFs/Stokes). Its not in SDContainer |
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| 207 | if (toStokes) { |
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| 208 | stokes = in->getStokesSpectrum(iRow,-1,-1); |
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| 209 | } |
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| 210 | |
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| 211 | IPosition start(asap::nAxes,0); |
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| 212 | IPosition end(stokes.shape()-1); |
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| 213 | |
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[28] | 214 | // Write it out beam by beam. |
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| 215 | for (Int iBeam = 0; iBeam < hdr.nbeam; iBeam++) { |
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[470] | 216 | start(asap::BeamAxis) = iBeam; |
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| 217 | end(asap::BeamAxis) = iBeam; |
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[28] | 218 | |
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| 219 | // Write it out IF by IF. |
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| 220 | for (Int iIF = 0; iIF < hdr.nif; iIF++) { |
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[470] | 221 | start(asap::IFAxis) = iIF; |
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| 222 | end(asap::IFAxis) = iIF; |
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[324] | 223 | uInt freqID = freqIDs(iIF); |
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| 224 | |
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[28] | 225 | // None of these are stored in SDMemTable by SDReader. |
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[112] | 226 | //String fieldName = ""; |
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[79] | 227 | //Vector<Double> srcDir(2, 0.0); |
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[28] | 228 | Vector<Double> srcPM(2, 0.0); |
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| 229 | Double srcVel = 0.0; |
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[324] | 230 | |
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[442] | 231 | // The writer will assume refPix = nChan/2 (0-rel). So recompute |
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[324] | 232 | // the frequency at this location. |
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| 233 | |
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| 234 | Double cdelt = sdft.increment(freqID); |
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| 235 | Double crval = sdft.referenceValue(freqID); |
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| 236 | Double crpix = sdft.referencePixel(freqID); |
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[442] | 237 | Double pixel = nChan/2; |
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[324] | 238 | Double refFreqNew = (pixel-crpix)*cdelt + crval; |
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| 239 | // |
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[112] | 240 | //Vector<Float> tcal(2, 0.0f); |
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| 241 | //String tcalTime = ""; |
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| 242 | //Float azimuth = 0.0f; |
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| 243 | //Float elevation = 0.0f; |
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| 244 | //Float parAngle = 0.0f; |
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[28] | 245 | Float focusAxi = 0.0f; |
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| 246 | Float focusTan = 0.0f; |
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| 247 | Float focusRot = 0.0f; |
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| 248 | Float temperature = 0.0f; |
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| 249 | Float pressure = 0.0f; |
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| 250 | Float humidity = 0.0f; |
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| 251 | Float windSpeed = 0.0f; |
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| 252 | Float windAz = 0.0f; |
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[112] | 253 | //Int refBeam = 0; |
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[79] | 254 | //Vector<Double> direction(2, 0.0); |
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[28] | 255 | Vector<Double> scanRate(2, 0.0); |
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| 256 | Vector<Float> sigma(nPol, 0.0f); |
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| 257 | Vector<Float> calFctr(nPol, 0.0f); |
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| 258 | Matrix<Float> baseLin(nPol,2, 0.0f); |
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| 259 | Matrix<Float> baseSub(nPol,9, 0.0f); |
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| 260 | Complex xCalFctr; |
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| 261 | Vector<Complex> xPol; |
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[470] | 262 | |
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| 263 | // Get data. |
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| 264 | |
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| 265 | if (toStokes) { |
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| 266 | |
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| 267 | // Big pain in the ass because |
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| 268 | // 1) Stokes vector may have less polarizations than input |
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| 269 | // 2) Stokes column virtual and not in SDContainer |
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| 270 | // 3) Tsys and FLags already selected for IF and Beam |
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| 271 | // 3) Have to flip order |
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| 272 | |
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| 273 | Array<Float> t = sd.getTsys(iBeam,iIF); |
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| 274 | tSys = SDPolUtil::computeStokesTSysForWriter (t, doLinear); |
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| 275 | Array<uChar> t2 = sd.getFlags(iBeam,iIF); |
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| 276 | flags = SDPolUtil::computeStokesFlagsForWriter (t2, doLinear); |
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| 277 | spectra = SDPolUtil::extractStokesForWriter (stokes,start,end); |
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| 278 | } else { |
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| 279 | tSys = sd.getTsys(iBeam,iIF); |
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| 280 | flags = sd.getFlags(iBeam,iIF); |
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| 281 | spectra = sd.getSpectrum(iBeam,iIF); |
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| 282 | } |
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[324] | 283 | // |
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[628] | 284 | if (status = cWriter->write(sd.scanid+1, cycleNo, sd.timestamp, |
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[112] | 285 | sd.interval, sd.fieldname, sd.sourcename, |
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[94] | 286 | sd.getDirection(iBeam), |
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[324] | 287 | srcPM, srcVel, iIF+1, refFreqNew, |
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| 288 | nChan*abs(cdelt), cdelt, restFreq, sd.tcal, |
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[112] | 289 | sd.tcaltime, sd.azimuth, sd.elevation, |
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| 290 | sd.parangle, |
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[28] | 291 | focusAxi, focusTan, focusRot, temperature, |
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| 292 | pressure, humidity, windSpeed, windAz, |
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[112] | 293 | sd.refbeam, iBeam+1, |
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[94] | 294 | sd.getDirection(iBeam), |
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| 295 | scanRate, |
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[470] | 296 | tSys, sigma, calFctr, |
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[75] | 297 | baseLin, baseSub, |
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[470] | 298 | spectra, flags, |
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[28] | 299 | xCalFctr, xPol)) { |
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| 300 | cerr << "Error writing output file." << endl; |
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| 301 | return 1; |
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| 302 | } |
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| 303 | |
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| 304 | count++; |
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| 305 | } |
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| 306 | } |
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| 307 | } |
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| 308 | |
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| 309 | cout << "SDWriter: wrote " << count << " rows to " << filename << endl; |
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| 310 | cWriter->close(); |
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| 311 | |
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| 312 | return 0; |
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| 313 | } |
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[470] | 314 | |
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| 315 | |
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