| 1 | //#---------------------------------------------------------------------------
|
|---|
| 2 | //# STWriter.cc: ASAP class to write out single dish spectra.
|
|---|
| 3 | //#---------------------------------------------------------------------------
|
|---|
| 4 | //# Copyright (C) 2004
|
|---|
| 5 | //# ATNF
|
|---|
| 6 | //#
|
|---|
| 7 | //# This program is free software; you can redistribute it and/or modify it
|
|---|
| 8 | //# under the terms of the GNU General Public License as published by the Free
|
|---|
| 9 | //# Software Foundation; either version 2 of the License, or (at your option)
|
|---|
| 10 | //# any later version.
|
|---|
| 11 | //#
|
|---|
| 12 | //# This program is distributed in the hope that it will be useful, but
|
|---|
| 13 | //# WITHOUT ANY WARRANTY; without even the implied warranty of
|
|---|
| 14 | //# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
|
|---|
| 15 | //# Public License for more details.
|
|---|
| 16 | //#
|
|---|
| 17 | //# You should have received a copy of the GNU General Public License along
|
|---|
| 18 | //# with this program; if not, write to the Free Software Foundation, Inc.,
|
|---|
| 19 | //# 675 Massachusetts Ave, Cambridge, MA 02139, USA.
|
|---|
| 20 | //#
|
|---|
| 21 | //# Correspondence concerning this software should be addressed as follows:
|
|---|
| 22 | //# Internet email: Malte.Marquarding@csiro.au
|
|---|
| 23 | //# Postal address: Malte Marquarding,
|
|---|
| 24 | //# Australia Telescope National Facility,
|
|---|
| 25 | //# P.O. Box 76,
|
|---|
| 26 | //# Epping, NSW, 2121,
|
|---|
| 27 | //# AUSTRALIA
|
|---|
| 28 | //#
|
|---|
| 29 | //# $Id: STWriter.cpp 1410 2008-01-31 04:15:02Z MalteMarquarding $
|
|---|
| 30 | //#---------------------------------------------------------------------------
|
|---|
| 31 |
|
|---|
| 32 | #include <string>
|
|---|
| 33 |
|
|---|
| 34 | #include <casa/aips.h>
|
|---|
| 35 | #include <casa/Arrays/Array.h>
|
|---|
| 36 | #include <casa/Arrays/Vector.h>
|
|---|
| 37 | #include <casa/BasicSL/Complex.h>
|
|---|
| 38 | #include <casa/Utilities/CountedPtr.h>
|
|---|
| 39 | #include <casa/Utilities/Assert.h>
|
|---|
| 40 |
|
|---|
| 41 | #include <atnf/PKSIO/PKSMS2writer.h>
|
|---|
| 42 | #include <atnf/PKSIO/PKSSDwriter.h>
|
|---|
| 43 |
|
|---|
| 44 | #include <tables/Tables/Table.h>
|
|---|
| 45 | #include <tables/Tables/TableIter.h>
|
|---|
| 46 | #include <tables/Tables/TableRow.h>
|
|---|
| 47 | #include <tables/Tables/ArrayColumn.h>
|
|---|
| 48 |
|
|---|
| 49 | //#include "SDFITSImageWriter.h"
|
|---|
| 50 | #include "STAsciiWriter.h"
|
|---|
| 51 | #include "STHeader.h"
|
|---|
| 52 |
|
|---|
| 53 | #include "STWriter.h"
|
|---|
| 54 |
|
|---|
| 55 | using namespace casa;
|
|---|
| 56 | namespace asap {
|
|---|
| 57 |
|
|---|
| 58 | STWriter::STWriter(const std::string &format)
|
|---|
| 59 | {
|
|---|
| 60 | format_ = format;
|
|---|
| 61 | String t(format_);
|
|---|
| 62 | t.upcase();
|
|---|
| 63 | if (t== "MS2") {
|
|---|
| 64 | writer_ = new PKSMS2writer();
|
|---|
| 65 | } else if (t== "SDFITS") {
|
|---|
| 66 | writer_ = new PKSSDwriter();
|
|---|
| 67 | } else if (t== "ASCII") {
|
|---|
| 68 | writer_ = 0;
|
|---|
| 69 | } else {
|
|---|
| 70 | throw (AipsError("Unrecognized export format"));
|
|---|
| 71 | }
|
|---|
| 72 | }
|
|---|
| 73 |
|
|---|
| 74 | STWriter::~STWriter()
|
|---|
| 75 | {
|
|---|
| 76 | if (writer_) {
|
|---|
| 77 | delete writer_;
|
|---|
| 78 | }
|
|---|
| 79 | }
|
|---|
| 80 |
|
|---|
| 81 | Int STWriter::setFormat(const std::string &format)
|
|---|
| 82 | {
|
|---|
| 83 | if (format != format_) {
|
|---|
| 84 | if (writer_) delete writer_;
|
|---|
| 85 | }
|
|---|
| 86 |
|
|---|
| 87 | format_ = format;
|
|---|
| 88 | String t(format_);
|
|---|
| 89 | t.upcase();
|
|---|
| 90 | if (t== "MS2") {
|
|---|
| 91 | writer_ = new PKSMS2writer();
|
|---|
| 92 | } else if (t== "SDFITS") {
|
|---|
| 93 | writer_ = new PKSSDwriter();
|
|---|
| 94 | } else if (t== "ASCII") {
|
|---|
| 95 | writer_ = 0;
|
|---|
| 96 | } else {
|
|---|
| 97 | throw (AipsError("Unrecognized Format"));
|
|---|
| 98 | }
|
|---|
| 99 | return 0;
|
|---|
| 100 | }
|
|---|
| 101 |
|
|---|
| 102 | Int STWriter::write(const CountedPtr<Scantable> in,
|
|---|
| 103 | const std::string &filename)
|
|---|
| 104 | {
|
|---|
| 105 |
|
|---|
| 106 | if (format_=="ASCII") {
|
|---|
| 107 | STAsciiWriter iw;
|
|---|
| 108 | if (iw.write(*in, filename)) {
|
|---|
| 109 | return 0;
|
|---|
| 110 | } else {
|
|---|
| 111 | return 1;
|
|---|
| 112 | }
|
|---|
| 113 | }
|
|---|
| 114 |
|
|---|
| 115 | // MS or SDFITS
|
|---|
| 116 |
|
|---|
| 117 | // Extract the header from the table.
|
|---|
| 118 | // this is a little different from what I have done
|
|---|
| 119 | // before. Need to check with the Offline User Test data
|
|---|
| 120 | STHeader hdr = in->getHeader();
|
|---|
| 121 | //const Int nPol = hdr.npol;
|
|---|
| 122 | //const Int nChan = hdr.nchan;
|
|---|
| 123 | std::vector<uint> ifs = in->getIFNos();
|
|---|
| 124 | int nIF = in->nif();//ifs.size();
|
|---|
| 125 | Vector<uInt> nPol(nIF),nChan(nIF);
|
|---|
| 126 | Vector<Bool> havexpol(nIF);
|
|---|
| 127 | String fluxUnit = hdr.fluxunit;
|
|---|
| 128 |
|
|---|
| 129 | nPol = 0;nChan = 0; havexpol = False;
|
|---|
| 130 | for (uint i=0;i<ifs.size();++i) {
|
|---|
| 131 | nPol(ifs[i]) = in->npol();
|
|---|
| 132 | nChan(ifs[i]) = in->nchan(ifs[i]);
|
|---|
| 133 | havexpol(ifs[i]) = nPol(ifs[i]) > 2;
|
|---|
| 134 | }
|
|---|
| 135 |
|
|---|
| 136 | const Table table = in->table();
|
|---|
| 137 |
|
|---|
| 138 | // Create the output file and write static data.
|
|---|
| 139 | Int status;
|
|---|
| 140 | status = writer_->create(String(filename), hdr.observer, hdr.project,
|
|---|
| 141 | hdr.antennaname, hdr.antennaposition,
|
|---|
| 142 | hdr.obstype, hdr.fluxunit,
|
|---|
| 143 | hdr.equinox, hdr.freqref,
|
|---|
| 144 | nChan, nPol, havexpol, False);
|
|---|
| 145 | if ( status ) {
|
|---|
| 146 | throw(AipsError("Failed to create output file"));
|
|---|
| 147 | }
|
|---|
| 148 |
|
|---|
| 149 | Double srcVel;
|
|---|
| 150 |
|
|---|
| 151 | String fieldName, srcName, tcalTime;
|
|---|
| 152 | Vector<Float> calFctr, sigma, tcal, tsys;
|
|---|
| 153 | Vector<Double> direction(2), scanRate(2), srcDir(2), srcPM(2);
|
|---|
| 154 | Matrix<Float> spectra;
|
|---|
| 155 | Matrix<uChar> flagtra;
|
|---|
| 156 | Complex xCalFctr;
|
|---|
| 157 | Int count = 0;
|
|---|
| 158 | Int scanno = 1;
|
|---|
| 159 | // use spearate iterators to ensure renumbering of all numbers
|
|---|
| 160 | TableIterator scanit(table, "SCANNO");
|
|---|
| 161 | while (!scanit.pastEnd() ) {
|
|---|
| 162 | Table stable = scanit.table();
|
|---|
| 163 | TableIterator beamit(stable, "BEAMNO");
|
|---|
| 164 | Int beamno = 1;
|
|---|
| 165 | while (!beamit.pastEnd() ) {
|
|---|
| 166 | Table btable = beamit.table();
|
|---|
| 167 | TableIterator cycit(btable, "CYCLENO");
|
|---|
| 168 | ROArrayColumn<Double> srateCol(btable, "SCANRATE");
|
|---|
| 169 | srateCol.get(0, scanRate);
|
|---|
| 170 | ROArrayColumn<Double> spmCol(btable, "SRCPROPERMOTION");
|
|---|
| 171 | spmCol.get(0, srcPM);
|
|---|
| 172 | ROArrayColumn <Double> sdirCol(btable, "SRCDIRECTION");
|
|---|
| 173 | sdirCol.get(0, srcDir);
|
|---|
| 174 | ROScalarColumn<Double> svelCol(btable, "SRCVELOCITY");
|
|---|
| 175 | svelCol.get(0, srcVel);
|
|---|
| 176 | ROScalarColumn<uInt> bCol(btable, "BEAMNO");
|
|---|
| 177 | beamno = bCol(0)+1;
|
|---|
| 178 | Int cycno = 1;
|
|---|
| 179 | while (!cycit.pastEnd() ) {
|
|---|
| 180 | Table ctable = cycit.table();
|
|---|
| 181 | TableIterator ifit(ctable, "IFNO");
|
|---|
| 182 | MDirection::ScalarColumn dirCol(ctable, "DIRECTION");
|
|---|
| 183 | Vector<Double> direction = dirCol(0).getAngle("rad").getValue();
|
|---|
| 184 | Int ifno = 1;
|
|---|
| 185 | while (!ifit.pastEnd() ) {
|
|---|
| 186 | Table itable = ifit.table();
|
|---|
| 187 | TableRow row(itable);
|
|---|
| 188 | // use the first row to fill in all the "metadata"
|
|---|
| 189 | const TableRecord& rec = row.get(0);
|
|---|
| 190 | ROArrayColumn<Float> specCol(itable, "SPECTRA");
|
|---|
| 191 | ifno = rec.asuInt("IFNO")+1;
|
|---|
| 192 | uInt nchan = specCol(0).nelements();
|
|---|
| 193 | Double cdelt,crval,crpix, restfreq;
|
|---|
| 194 | Float focusAxi, focusTan, focusRot,
|
|---|
| 195 | temperature, pressure, humidity, windSpeed, windAz;
|
|---|
| 196 | Float tmp0,tmp1,tmp2,tmp3,tmp4;
|
|---|
| 197 | Vector<Float> tcalval;
|
|---|
| 198 | String stmp0,stmp1, tcalt;
|
|---|
| 199 | in->frequencies().getEntry(crpix,crval,cdelt, rec.asuInt("FREQ_ID"));
|
|---|
| 200 | in->focus().getEntry(focusAxi, focusTan, focusRot,
|
|---|
| 201 | tmp0,tmp1,tmp2,tmp3,tmp4,
|
|---|
| 202 | rec.asuInt("FOCUS_ID"));
|
|---|
| 203 | in->molecules().getEntry(restfreq,stmp0,stmp1,rec.asuInt("MOLECULE_ID"));
|
|---|
| 204 | in->tcal().getEntry(tcalt,tcalval,rec.asuInt("TCAL_ID"));
|
|---|
| 205 | in->weather().getEntry(temperature, pressure, humidity,
|
|---|
| 206 | windSpeed, windAz,
|
|---|
| 207 | rec.asuInt("WEATHER_ID"));
|
|---|
| 208 | Double pixel = Double(nchan/2);
|
|---|
| 209 | Double refFreqNew = (pixel-crpix)*cdelt + crval;
|
|---|
| 210 | // ok, now we have nrows for the n polarizations in this table
|
|---|
| 211 | Matrix<Float> specs;
|
|---|
| 212 | Matrix<uChar> flags;
|
|---|
| 213 | Vector<Complex> xpol;
|
|---|
| 214 | polConversion(specs, flags, xpol, itable);
|
|---|
| 215 | Vector<Float> tsys = tsysFromTable(itable);
|
|---|
| 216 | // dummy data
|
|---|
| 217 | uInt npol = specs.ncolumn();
|
|---|
| 218 |
|
|---|
| 219 | Matrix<Float> baseLin(npol,2, 0.0f);
|
|---|
| 220 | Matrix<Float> baseSub(npol,9, 0.0f);
|
|---|
| 221 | Complex xCalFctr;
|
|---|
| 222 | Vector<Double> scanRate(2, 0.0);
|
|---|
| 223 | Vector<Float> sigma(npol, 0.0f);
|
|---|
| 224 | Vector<Float> calFctr(npol, 0.0f);
|
|---|
| 225 | status = writer_->write(scanno, cycno, rec.asDouble("TIME"),
|
|---|
| 226 | rec.asDouble("INTERVAL"),
|
|---|
| 227 | rec.asString("FIELDNAME"),
|
|---|
| 228 | rec.asString("SRCNAME"),
|
|---|
| 229 | srcDir, srcPM, srcVel,hdr.obstype,
|
|---|
| 230 | ifno,
|
|---|
| 231 | refFreqNew, nchan*abs(cdelt), cdelt,
|
|---|
| 232 | restfreq,
|
|---|
| 233 | tcal,
|
|---|
| 234 | tcalt,
|
|---|
| 235 | rec.asFloat("AZIMUTH"),
|
|---|
| 236 | rec.asFloat("ELEVATION"),
|
|---|
| 237 | rec.asFloat("PARANGLE"),
|
|---|
| 238 | focusAxi, focusTan, focusRot,
|
|---|
| 239 | temperature,
|
|---|
| 240 | pressure, humidity, windSpeed, windAz,
|
|---|
| 241 | rec.asInt("REFBEAMNO")+1, beamno,
|
|---|
| 242 | direction,
|
|---|
| 243 | scanRate,
|
|---|
| 244 | tsys,
|
|---|
| 245 | sigma, calFctr,// not in scantable
|
|---|
| 246 | baseLin, baseSub,// not in scantable
|
|---|
| 247 | specs, flags,
|
|---|
| 248 | xCalFctr,//
|
|---|
| 249 | xpol);
|
|---|
| 250 | if ( status ) {
|
|---|
| 251 | writer_->close();
|
|---|
| 252 | throw(AipsError("STWriter: Failed to export Scantable."));
|
|---|
| 253 | }
|
|---|
| 254 | ++count;
|
|---|
| 255 | //++ifno;
|
|---|
| 256 | ++ifit;
|
|---|
| 257 | }
|
|---|
| 258 | ++cycno;
|
|---|
| 259 | ++cycit;
|
|---|
| 260 | }
|
|---|
| 261 | //++beamno;
|
|---|
| 262 | ++beamit;
|
|---|
| 263 | }
|
|---|
| 264 | ++scanno;
|
|---|
| 265 | ++scanit;
|
|---|
| 266 | }
|
|---|
| 267 | ostringstream oss;
|
|---|
| 268 | oss << "STWriter: wrote " << count << " rows to " << filename;
|
|---|
| 269 | pushLog(String(oss));
|
|---|
| 270 | writer_->close();
|
|---|
| 271 | //if MS2 delete POINTING table exists and copy the one in the keyword
|
|---|
| 272 | if ( format_ == "MS2" ) {
|
|---|
| 273 | replacePtTab(table, filename);
|
|---|
| 274 | }
|
|---|
| 275 | return 0;
|
|---|
| 276 | }
|
|---|
| 277 |
|
|---|
| 278 | Vector<Float> STWriter::tsysFromTable(const Table& tab)
|
|---|
| 279 | {
|
|---|
| 280 | ROArrayColumn<Float> tsysCol(tab, "TSYS");
|
|---|
| 281 | Vector<Float> out(tab.nrow());
|
|---|
| 282 | Vector<Float> tmp;
|
|---|
| 283 | for (uInt i=0; i<tab.nrow(); ++i) {
|
|---|
| 284 | tmp.resize();
|
|---|
| 285 | tmp = tsysCol(i);
|
|---|
| 286 | out[i] = tmp[0];
|
|---|
| 287 | }
|
|---|
| 288 | return out;
|
|---|
| 289 | }
|
|---|
| 290 |
|
|---|
| 291 | void STWriter::polConversion( Matrix< Float >& specs, Matrix< uChar >& flags,
|
|---|
| 292 | Vector< Complex > & xpol, const Table & tab )
|
|---|
| 293 | {
|
|---|
| 294 | String poltype = tab.keywordSet().asString("POLTYPE");
|
|---|
| 295 | if ( poltype == "stokes") {
|
|---|
| 296 | String msg = "poltype = " + poltype + " not yet supported in output.";
|
|---|
| 297 | throw(AipsError(msg));
|
|---|
| 298 | }
|
|---|
| 299 | ROArrayColumn<Float> specCol(tab, "SPECTRA");
|
|---|
| 300 | ROArrayColumn<uChar> flagCol(tab, "FLAGTRA");
|
|---|
| 301 | uInt nchan = specCol(0).nelements();
|
|---|
| 302 | uInt ncol = (tab.nrow()==1 ? 1: 2 );
|
|---|
| 303 | specs.resize(nchan, ncol);
|
|---|
| 304 | flags.resize(nchan, ncol);
|
|---|
| 305 | // the linears
|
|---|
| 306 | for (uInt i=0; i<ncol; ++i) {
|
|---|
| 307 | specs.column(i) = specCol(i);
|
|---|
| 308 | flags.column(i) = flagCol(i);
|
|---|
| 309 | }
|
|---|
| 310 | // now the complex if exists
|
|---|
| 311 | Bool hasxpol = False;
|
|---|
| 312 | xpol.resize();
|
|---|
| 313 | if ( tab.nrow() == 4 ) {
|
|---|
| 314 | hasxpol = True;
|
|---|
| 315 | xpol.resize(nchan);
|
|---|
| 316 | Vector<Float> reals, imags;
|
|---|
| 317 | reals = specCol(2); imags = specCol(3);
|
|---|
| 318 | for (uInt k=0; k < nchan; ++k) {
|
|---|
| 319 | xpol[k] = Complex(reals[k], imags[k]);
|
|---|
| 320 | }
|
|---|
| 321 | }
|
|---|
| 322 | }
|
|---|
| 323 |
|
|---|
| 324 | // For writing MS data, if there is the reference to
|
|---|
| 325 | // original pointing table it replace it by it.
|
|---|
| 326 | void STWriter::replacePtTab (const Table& tab, const std::string& fname)
|
|---|
| 327 | {
|
|---|
| 328 | String oldPtTabName = fname;
|
|---|
| 329 | oldPtTabName.append("/POINTING");
|
|---|
| 330 | if ( tab.keywordSet().isDefined("POINTING") ) {
|
|---|
| 331 | String PointingTab = tab.keywordSet().asString("POINTING");
|
|---|
| 332 | if ( Table::isReadable(PointingTab) ) {
|
|---|
| 333 | Table newPtTab(PointingTab, Table::Old);
|
|---|
| 334 | newPtTab.copy(oldPtTabName, Table::New);
|
|---|
| 335 | ostringstream oss;
|
|---|
| 336 | oss << "STWriter: copied " <<PointingTab << " to " << fname;
|
|---|
| 337 | pushLog(String(oss));
|
|---|
| 338 | }
|
|---|
| 339 | }
|
|---|
| 340 | }
|
|---|
| 341 |
|
|---|
| 342 | }
|
|---|
