[198] | 1 | //#--------------------------------------------------------------------------- |
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| 2 | //# SDAsciiWriter.cc: ASAP class to write out single dish spectra as FITS images |
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| 3 | //#--------------------------------------------------------------------------- |
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| 4 | //# Copyright (C) 2004 |
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| 5 | //# ATNF |
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| 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: SDAsciiWriter.cc 215 2005-01-19 04:03:10Z mar637 $ |
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| 30 | //#--------------------------------------------------------------------------- |
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| 31 | |
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| 32 | #include <casa/aips.h> |
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| 33 | #include <casa/Arrays/Array.h> |
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| 34 | #include <casa/Arrays/Vector.h> |
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| 35 | #include <casa/Arrays/VectorIter.h> |
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| 36 | #include <casa/Utilities/CountedPtr.h> |
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| 37 | #include <casa/Quanta/Quantum.h> |
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| 38 | #include <casa/Quanta/MVAngle.h> |
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| 39 | |
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[209] | 40 | |
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| 41 | #include <casa/iostream.h> |
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| 42 | #include <casa/fstream.h> |
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| 43 | |
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[198] | 44 | #include <coordinates/Coordinates/CoordinateUtil.h> |
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| 45 | #include <coordinates/Coordinates/SpectralCoordinate.h> |
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| 46 | #include <coordinates/Coordinates/DirectionCoordinate.h> |
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| 47 | #include <coordinates/Coordinates/StokesCoordinate.h> |
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| 48 | |
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| 49 | #include <measures/Measures/MEpoch.h> |
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| 50 | |
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| 51 | #include <tables/Tables/Table.h> |
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| 52 | #include <tables/Tables/ScalarColumn.h> |
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| 53 | #include <tables/Tables/ArrayColumn.h> |
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| 54 | |
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[215] | 55 | #include "SDDefs.h" |
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[198] | 56 | #include "SDContainer.h" |
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| 57 | #include "SDMemTable.h" |
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[209] | 58 | #include "SDAsciiWriter.h" |
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[198] | 59 | |
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| 60 | using namespace casa; |
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| 61 | using namespace asap; |
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| 62 | |
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| 63 | |
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| 64 | SDAsciiWriter::SDAsciiWriter() |
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| 65 | {;} |
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| 66 | |
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| 67 | SDAsciiWriter::~SDAsciiWriter() |
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| 68 | {;} |
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| 69 | |
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| 70 | |
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[209] | 71 | Bool SDAsciiWriter::write(const SDMemTable& sdTable, const String& fileName) |
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[198] | 72 | { |
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| 73 | |
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| 74 | // Get global Header from Table |
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| 75 | |
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| 76 | SDHeader header = sdTable.getSDHeader(); |
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| 77 | MEpoch::Ref timeRef(MEpoch::UTC); // Should be in header |
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| 78 | MDirection::Types dirRef(MDirection::J2000); // Should be in header |
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| 79 | |
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| 80 | // Column keywords |
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| 81 | |
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| 82 | Table tab = sdTable.table(); |
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| 83 | ROArrayColumn<Double> dir(tab, String("DIRECTION")); |
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| 84 | ROScalarColumn<Double> time(tab, "TIME"); |
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| 85 | ROArrayColumn<uInt> freqid(tab, "FREQID"); |
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| 86 | ROScalarColumn<String> src(tab, "SRCNAME"); |
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| 87 | |
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| 88 | // Temps |
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| 89 | |
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| 90 | Vector<Int> whichStokes(1,1); |
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| 91 | Array<Double> whichDir; |
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| 92 | Vector<Double> lonLat(2); |
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| 93 | IPosition posDir(2,0); |
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| 94 | const Unit RAD(String("rad")); |
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| 95 | |
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| 96 | // Open file |
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| 97 | |
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| 98 | String fName(fileName); |
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| 99 | if (fileName.length()==0) fName = String("ascii.txt"); |
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| 100 | ofstream of(fName.chars(), ios::trunc); |
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| 101 | |
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| 102 | // Write header |
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| 103 | |
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[209] | 104 | of << "row beam IF pol source longitude latitude time nchan spectrum mask" |
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| 105 | << endl; |
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| 106 | |
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[198] | 107 | // Loop over rows |
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| 108 | |
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| 109 | const uInt nRows = sdTable.nRow(); |
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| 110 | for (uInt iRow=0; iRow<nRows; iRow++) { |
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| 111 | |
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| 112 | // Get data |
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| 113 | |
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| 114 | const MaskedArray<Float>& dataIn(sdTable.rowAsMaskedArray(iRow)); |
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| 115 | const Array<Float>& values = dataIn.getArray(); |
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| 116 | const Array<Bool>& mask = dataIn.getMask(); |
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| 117 | |
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| 118 | // Epoch |
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| 119 | |
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| 120 | Double dTmp; |
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| 121 | time.get(iRow, dTmp); |
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| 122 | MVEpoch tmp2(Quantum<Double>(dTmp, Unit(String("d")))); |
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| 123 | MEpoch epoch(tmp2, timeRef); |
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| 124 | |
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| 125 | // Iterate through data in this row by spectra |
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| 126 | |
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[209] | 127 | ReadOnlyVectorIterator<Float> itData(values, asap::ChanAxis); |
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| 128 | ReadOnlyVectorIterator<Bool> itMask(mask, asap::ChanAxis); |
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[198] | 129 | while (!itData.pastEnd()) { |
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| 130 | const IPosition& pos = itData.pos(); |
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| 131 | |
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| 132 | // FreqID |
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| 133 | |
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| 134 | Vector<uInt> iTmp; |
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| 135 | freqid.get(iRow, iTmp); |
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| 136 | |
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| 137 | // Direction |
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| 138 | |
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| 139 | dir.get(iRow, whichDir); |
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[209] | 140 | posDir(0) = pos(asap::BeamAxis); |
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[198] | 141 | posDir(1) = 0; |
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| 142 | lonLat[0] = whichDir(posDir); |
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| 143 | // |
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[209] | 144 | posDir(0) = pos(asap::BeamAxis); |
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[198] | 145 | posDir(1) = 1; |
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| 146 | lonLat[1] = whichDir(posDir); |
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| 147 | |
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[211] | 148 | // Write preamble |
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[198] | 149 | |
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[211] | 150 | of << iRow << " " << pos(asap::BeamAxis) << " " << pos(asap::IFAxis) << " " << |
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| 151 | pos(asap::PolAxis) << " " << |
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| 152 | src(iRow) << " " << formatDirection(lonLat) << " " << |
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| 153 | dTmp << " " << itData.vector().nelements() << " "; |
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| 154 | // Write data |
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[198] | 155 | |
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[211] | 156 | const Vector<Float>& data = itData.vector(); |
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| 157 | const Vector<Bool>& mask = itMask.vector(); |
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| 158 | const uInt n = data.nelements(); |
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| 159 | for (uInt i=0; i<n; i++) { |
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| 160 | of << data[i] << " "; |
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| 161 | } |
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| 162 | // Write mask |
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| 163 | |
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| 164 | for (uInt i=0; i<n; i++) { |
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| 165 | of << mask[i] << " "; |
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| 166 | } |
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| 167 | of << endl; |
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| 168 | |
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[198] | 169 | // Next spectrum |
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| 170 | |
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| 171 | itData.next(); |
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| 172 | itMask.next(); |
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| 173 | } |
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| 174 | } |
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| 175 | // |
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| 176 | of.close(); |
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| 177 | cerr << "Wrote " << nRows << " rows into file " << fileName << endl; |
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| 178 | // |
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| 179 | return True; |
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| 180 | } |
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| 181 | |
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| 182 | |
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[209] | 183 | Int SDAsciiWriter::convertStokes(Int val) |
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[198] | 184 | { |
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| 185 | Stokes::StokesTypes stokes = Stokes::RR; |
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| 186 | if (val==0) { |
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| 187 | stokes = Stokes::RR; |
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| 188 | } else if (val==1) { |
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| 189 | stokes = Stokes::LL; |
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| 190 | } else if (val==2) { |
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| 191 | stokes = Stokes::RL; |
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| 192 | } else if (val==3) { |
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| 193 | stokes = Stokes::LR; |
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| 194 | } else { |
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| 195 | stokes = Stokes::Undefined; |
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| 196 | } |
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| 197 | // |
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| 198 | return Int(stokes); |
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| 199 | } |
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| 200 | |
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| 201 | |
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[209] | 202 | String SDAsciiWriter::formatDirection(const Vector<Double>& lonLat) |
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[198] | 203 | { |
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| 204 | MVAngle x1(lonLat(0)); |
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| 205 | String s1 = x1.string(MVAngle::TIME, 12); |
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| 206 | // |
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| 207 | MVAngle x2(lonLat(1)); |
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| 208 | String s2 = x2.string(MVAngle::ANGLE, 12); |
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| 209 | // |
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| 210 | String ss = s1 + String(" ") + s2; |
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| 211 | return ss; |
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| 212 | } |
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| 213 | |
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