[470] | 1 | //#--------------------------------------------------------------------------- |
---|
[822] | 2 | //# STWriter.cc: ASAP class to write out single dish spectra. |
---|
[28] | 3 | //#--------------------------------------------------------------------------- |
---|
| 4 | //# Copyright (C) 2004 |
---|
[125] | 5 | //# ATNF |
---|
[28] | 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 1603 2009-07-17 20:35:47Z TakTsutsumi $ |
---|
| 30 | //#--------------------------------------------------------------------------- |
---|
| 31 | |
---|
| 32 | #include <string> |
---|
| 33 | |
---|
[81] | 34 | #include <casa/aips.h> |
---|
[470] | 35 | #include <casa/Arrays/Array.h> |
---|
| 36 | #include <casa/Arrays/Vector.h> |
---|
[81] | 37 | #include <casa/BasicSL/Complex.h> |
---|
| 38 | #include <casa/Utilities/CountedPtr.h> |
---|
[470] | 39 | #include <casa/Utilities/Assert.h> |
---|
[28] | 40 | |
---|
[1603] | 41 | #include <atnf/PKSIO/PKSrecord.h> |
---|
[28] | 42 | #include <atnf/PKSIO/PKSMS2writer.h> |
---|
| 43 | #include <atnf/PKSIO/PKSSDwriter.h> |
---|
| 44 | |
---|
[827] | 45 | #include <tables/Tables/Table.h> |
---|
| 46 | #include <tables/Tables/TableIter.h> |
---|
| 47 | #include <tables/Tables/TableRow.h> |
---|
[324] | 48 | #include <tables/Tables/ArrayColumn.h> |
---|
| 49 | |
---|
[1603] | 50 | #include "STFITSImageWriter.h" |
---|
[988] | 51 | #include "STAsciiWriter.h" |
---|
[901] | 52 | #include "STHeader.h" |
---|
[324] | 53 | |
---|
[822] | 54 | #include "STWriter.h" |
---|
[28] | 55 | |
---|
[125] | 56 | using namespace casa; |
---|
[827] | 57 | namespace asap { |
---|
[28] | 58 | |
---|
[822] | 59 | STWriter::STWriter(const std::string &format) |
---|
[28] | 60 | { |
---|
[988] | 61 | format_ = format; |
---|
| 62 | String t(format_); |
---|
[450] | 63 | t.upcase(); |
---|
[1603] | 64 | if (t == "MS2") { |
---|
[988] | 65 | writer_ = new PKSMS2writer(); |
---|
[1603] | 66 | } else if (t == "SDFITS") { |
---|
[988] | 67 | writer_ = new PKSSDwriter(); |
---|
[1603] | 68 | } else if (t == "ASCII" || t == "FITS" || t == "CLASS") { |
---|
[988] | 69 | writer_ = 0; |
---|
[450] | 70 | } else { |
---|
[988] | 71 | throw (AipsError("Unrecognized export format")); |
---|
[28] | 72 | } |
---|
| 73 | } |
---|
| 74 | |
---|
[822] | 75 | STWriter::~STWriter() |
---|
[28] | 76 | { |
---|
[988] | 77 | if (writer_) { |
---|
| 78 | delete writer_; |
---|
[192] | 79 | } |
---|
[28] | 80 | } |
---|
| 81 | |
---|
[822] | 82 | Int STWriter::setFormat(const std::string &format) |
---|
[28] | 83 | { |
---|
[988] | 84 | if (format != format_) { |
---|
| 85 | if (writer_) delete writer_; |
---|
[450] | 86 | } |
---|
[827] | 87 | |
---|
[988] | 88 | format_ = format; |
---|
| 89 | String t(format_); |
---|
[450] | 90 | t.upcase(); |
---|
| 91 | if (t== "MS2") { |
---|
[988] | 92 | writer_ = new PKSMS2writer(); |
---|
[450] | 93 | } else if (t== "SDFITS") { |
---|
[988] | 94 | writer_ = new PKSSDwriter(); |
---|
[1603] | 95 | } else if (t == "ASCII" || t == "FITS" || t == "CLASS") { |
---|
[988] | 96 | writer_ = 0; |
---|
[450] | 97 | } else { |
---|
| 98 | throw (AipsError("Unrecognized Format")); |
---|
[28] | 99 | } |
---|
| 100 | return 0; |
---|
| 101 | } |
---|
| 102 | |
---|
[827] | 103 | Int STWriter::write(const CountedPtr<Scantable> in, |
---|
| 104 | const std::string &filename) |
---|
[28] | 105 | { |
---|
[192] | 106 | |
---|
[1280] | 107 | if (format_=="ASCII") { |
---|
| 108 | STAsciiWriter iw; |
---|
| 109 | if (iw.write(*in, filename)) { |
---|
| 110 | return 0; |
---|
| 111 | } else { |
---|
| 112 | return 1; |
---|
| 113 | } |
---|
[1603] | 114 | } else if ( format_ == "FITS" || format_ == "CLASS") { |
---|
| 115 | STFITSImageWriter iw; |
---|
| 116 | if (format_ == "CLASS") { |
---|
| 117 | iw.setClass(True); |
---|
| 118 | } |
---|
| 119 | if (iw.write(*in, filename)) { |
---|
| 120 | return 0; |
---|
| 121 | } |
---|
[199] | 122 | } |
---|
[192] | 123 | |
---|
[827] | 124 | // MS or SDFITS |
---|
[192] | 125 | |
---|
[28] | 126 | // Extract the header from the table. |
---|
[1387] | 127 | // this is a little different from what I have done |
---|
| 128 | // before. Need to check with the Offline User Test data |
---|
[901] | 129 | STHeader hdr = in->getHeader(); |
---|
[1060] | 130 | //const Int nPol = hdr.npol; |
---|
| 131 | //const Int nChan = hdr.nchan; |
---|
[1295] | 132 | std::vector<uint> ifs = in->getIFNos(); |
---|
| 133 | int nIF = in->nif();//ifs.size(); |
---|
[1060] | 134 | Vector<uInt> nPol(nIF),nChan(nIF); |
---|
| 135 | Vector<Bool> havexpol(nIF); |
---|
[1387] | 136 | String fluxUnit = hdr.fluxunit; |
---|
| 137 | |
---|
[1295] | 138 | nPol = 0;nChan = 0; havexpol = False; |
---|
[1305] | 139 | for (uint i=0;i<ifs.size();++i) { |
---|
[1295] | 140 | nPol(ifs[i]) = in->npol(); |
---|
| 141 | nChan(ifs[i]) = in->nchan(ifs[i]); |
---|
| 142 | havexpol(ifs[i]) = nPol(ifs[i]) > 2; |
---|
[1060] | 143 | } |
---|
[28] | 144 | |
---|
[324] | 145 | const Table table = in->table(); |
---|
| 146 | |
---|
[28] | 147 | // Create the output file and write static data. |
---|
| 148 | Int status; |
---|
[1060] | 149 | status = writer_->create(String(filename), hdr.observer, hdr.project, |
---|
[1603] | 150 | hdr.antennaname, hdr.antennaposition, |
---|
| 151 | hdr.obstype, hdr.fluxunit, |
---|
| 152 | hdr.equinox, hdr.freqref, |
---|
| 153 | nChan, nPol, havexpol, False); |
---|
[996] | 154 | if ( status ) { |
---|
[717] | 155 | throw(AipsError("Failed to create output file")); |
---|
[28] | 156 | } |
---|
| 157 | |
---|
[822] | 158 | |
---|
[28] | 159 | Int count = 0; |
---|
[1603] | 160 | PKSrecord pksrec; |
---|
| 161 | pksrec.scanNo = 1; |
---|
[822] | 162 | // use spearate iterators to ensure renumbering of all numbers |
---|
| 163 | TableIterator scanit(table, "SCANNO"); |
---|
| 164 | while (!scanit.pastEnd() ) { |
---|
| 165 | Table stable = scanit.table(); |
---|
[988] | 166 | TableIterator beamit(stable, "BEAMNO"); |
---|
[1603] | 167 | pksrec.beamNo = 1; |
---|
[822] | 168 | while (!beamit.pastEnd() ) { |
---|
| 169 | Table btable = beamit.table(); |
---|
[827] | 170 | MDirection::ScalarColumn dirCol(btable, "DIRECTION"); |
---|
[1603] | 171 | pksrec.direction = dirCol(0).getAngle("rad").getValue(); |
---|
[988] | 172 | TableIterator cycit(btable, "CYCLENO"); |
---|
[999] | 173 | ROArrayColumn<Double> srateCol(btable, "SCANRATE"); |
---|
[1603] | 174 | Vector<Double> sratedbl; |
---|
| 175 | srateCol.get(0, sratedbl); |
---|
| 176 | Vector<Float> srateflt(sratedbl.nelements()); |
---|
| 177 | convertArray(srateflt, sratedbl); |
---|
| 178 | //pksrec.scanRate = srateflt; |
---|
| 179 | pksrec.scanRate = sratedbl; |
---|
[999] | 180 | ROArrayColumn<Double> spmCol(btable, "SRCPROPERMOTION"); |
---|
[1603] | 181 | spmCol.get(0, pksrec.srcPM); |
---|
[999] | 182 | ROArrayColumn <Double> sdirCol(btable, "SRCDIRECTION"); |
---|
[1603] | 183 | sdirCol.get(0, pksrec.srcDir); |
---|
[999] | 184 | ROScalarColumn<Double> svelCol(btable, "SRCVELOCITY"); |
---|
[1603] | 185 | svelCol.get(0, pksrec.srcVel); |
---|
[1295] | 186 | ROScalarColumn<uInt> bCol(btable, "BEAMNO"); |
---|
[1603] | 187 | pksrec.beamNo = bCol(0)+1; |
---|
| 188 | pksrec.cycleNo = 1; |
---|
[988] | 189 | while (!cycit.pastEnd() ) { |
---|
| 190 | Table ctable = cycit.table(); |
---|
[1603] | 191 | TableIterator ifit(ctable, "IFNO"); |
---|
[1446] | 192 | //MDirection::ScalarColumn dirCol(ctable, "DIRECTION"); |
---|
[1603] | 193 | //pksrec.direction = dirCol(0).getAngle("rad").getValue(); |
---|
| 194 | pksrec.IFno = 1; |
---|
[988] | 195 | while (!ifit.pastEnd() ) { |
---|
| 196 | Table itable = ifit.table(); |
---|
| 197 | TableRow row(itable); |
---|
[822] | 198 | // use the first row to fill in all the "metadata" |
---|
[827] | 199 | const TableRecord& rec = row.get(0); |
---|
[988] | 200 | ROArrayColumn<Float> specCol(itable, "SPECTRA"); |
---|
[1603] | 201 | pksrec.IFno = rec.asuInt("IFNO")+1; |
---|
[822] | 202 | uInt nchan = specCol(0).nelements(); |
---|
[1603] | 203 | Double crval,crpix; |
---|
| 204 | //Vector<Double> restfreq; |
---|
[988] | 205 | Float tmp0,tmp1,tmp2,tmp3,tmp4; |
---|
[1446] | 206 | String tcalt; |
---|
| 207 | Vector<String> stmp0, stmp1; |
---|
[1603] | 208 | in->frequencies().getEntry(crpix,crval, pksrec.freqInc, |
---|
| 209 | rec.asuInt("FREQ_ID")); |
---|
| 210 | in->focus().getEntry(pksrec.focusAxi, pksrec.focusTan, |
---|
| 211 | pksrec.focusRot, tmp0,tmp1,tmp2,tmp3,tmp4, |
---|
[988] | 212 | rec.asuInt("FOCUS_ID")); |
---|
[1603] | 213 | in->molecules().getEntry(pksrec.restFreq,stmp0,stmp1, |
---|
| 214 | rec.asuInt("MOLECULE_ID")); |
---|
| 215 | in->tcal().getEntry(pksrec.tcalTime, pksrec.tcal, |
---|
| 216 | rec.asuInt("TCAL_ID")); |
---|
| 217 | in->weather().getEntry(pksrec.temperature, pksrec.pressure, |
---|
| 218 | pksrec.humidity, pksrec.windSpeed, |
---|
| 219 | pksrec.windAz, rec.asuInt("WEATHER_ID")); |
---|
[822] | 220 | Double pixel = Double(nchan/2); |
---|
[1603] | 221 | pksrec.refFreq = (pixel-crpix)*pksrec.freqInc + crval; |
---|
[822] | 222 | // ok, now we have nrows for the n polarizations in this table |
---|
[1603] | 223 | polConversion(pksrec.spectra, pksrec.flagged, pksrec.xPol, itable); |
---|
| 224 | pksrec.tsys = tsysFromTable(itable); |
---|
[822] | 225 | // dummy data |
---|
[1603] | 226 | uInt npol = pksrec.spectra.ncolumn(); |
---|
[988] | 227 | |
---|
[1603] | 228 | pksrec.mjd = rec.asDouble("TIME"); |
---|
| 229 | pksrec.interval = rec.asDouble("INTERVAL"); |
---|
| 230 | pksrec.fieldName = rec.asString("FIELDNAME"); |
---|
| 231 | pksrec.srcName = rec.asString("SRCNAME"); |
---|
| 232 | pksrec.obsType = hdr.obstype; |
---|
| 233 | pksrec.bandwidth = nchan * abs(pksrec.freqInc); |
---|
| 234 | pksrec.azimuth = rec.asFloat("AZIMUTH"); |
---|
| 235 | pksrec.elevation = rec.asFloat("ELEVATION"); |
---|
| 236 | pksrec.parAngle = rec.asFloat("PARANGLE"); |
---|
| 237 | pksrec.refBeam = rec.asInt("REFBEAMNO") + 1; |
---|
| 238 | pksrec.sigma.resize(npol); |
---|
| 239 | pksrec.sigma = 0.0f; |
---|
| 240 | pksrec.calFctr.resize(npol); |
---|
| 241 | pksrec.calFctr = 0.0f; |
---|
| 242 | pksrec.baseLin.resize(npol,2); |
---|
| 243 | pksrec.baseLin = 0.0f; |
---|
| 244 | pksrec.baseSub.resize(npol,9); |
---|
| 245 | pksrec.baseSub = 0.0f; |
---|
| 246 | pksrec.xCalFctr = 0.0; |
---|
| 247 | |
---|
| 248 | status = writer_->write(pksrec); |
---|
[996] | 249 | if ( status ) { |
---|
[988] | 250 | writer_->close(); |
---|
| 251 | throw(AipsError("STWriter: Failed to export Scantable.")); |
---|
[822] | 252 | } |
---|
[999] | 253 | ++count; |
---|
[1603] | 254 | //++pksrec.IFno; |
---|
[988] | 255 | ++ifit; |
---|
[470] | 256 | } |
---|
[1603] | 257 | ++pksrec.cycleNo; |
---|
[988] | 258 | ++cycit; |
---|
[28] | 259 | } |
---|
[1603] | 260 | //++pksrec.beamNo; |
---|
[822] | 261 | ++beamit; |
---|
[28] | 262 | } |
---|
[1603] | 263 | ++pksrec.scanNo; |
---|
[822] | 264 | ++scanit; |
---|
[28] | 265 | } |
---|
[717] | 266 | ostringstream oss; |
---|
[999] | 267 | oss << "STWriter: wrote " << count << " rows to " << filename; |
---|
[717] | 268 | pushLog(String(oss)); |
---|
[988] | 269 | writer_->close(); |
---|
[1387] | 270 | //if MS2 delete POINTING table exists and copy the one in the keyword |
---|
| 271 | if ( format_ == "MS2" ) { |
---|
| 272 | replacePtTab(table, filename); |
---|
[1603] | 273 | } |
---|
[28] | 274 | return 0; |
---|
| 275 | } |
---|
[470] | 276 | |
---|
[827] | 277 | Vector<Float> STWriter::tsysFromTable(const Table& tab) |
---|
| 278 | { |
---|
| 279 | ROArrayColumn<Float> tsysCol(tab, "TSYS"); |
---|
| 280 | Vector<Float> out(tab.nrow()); |
---|
| 281 | Vector<Float> tmp; |
---|
| 282 | for (uInt i=0; i<tab.nrow(); ++i) { |
---|
[988] | 283 | tmp.resize(); |
---|
[827] | 284 | tmp = tsysCol(i); |
---|
| 285 | out[i] = tmp[0]; |
---|
| 286 | } |
---|
[988] | 287 | return out; |
---|
[827] | 288 | } |
---|
| 289 | |
---|
| 290 | void STWriter::polConversion( Matrix< Float >& specs, Matrix< uChar >& flags, |
---|
[822] | 291 | Vector< Complex > & xpol, const Table & tab ) |
---|
| 292 | { |
---|
| 293 | String poltype = tab.keywordSet().asString("POLTYPE"); |
---|
[1259] | 294 | if ( poltype == "stokes") { |
---|
[822] | 295 | String msg = "poltype = " + poltype + " not yet supported in output."; |
---|
[988] | 296 | throw(AipsError(msg)); |
---|
| 297 | } |
---|
[827] | 298 | ROArrayColumn<Float> specCol(tab, "SPECTRA"); |
---|
| 299 | ROArrayColumn<uChar> flagCol(tab, "FLAGTRA"); |
---|
[822] | 300 | uInt nchan = specCol(0).nelements(); |
---|
[988] | 301 | uInt ncol = (tab.nrow()==1 ? 1: 2 ); |
---|
| 302 | specs.resize(nchan, ncol); |
---|
| 303 | flags.resize(nchan, ncol); |
---|
[822] | 304 | // the linears |
---|
[988] | 305 | for (uInt i=0; i<ncol; ++i) { |
---|
[822] | 306 | specs.column(i) = specCol(i); |
---|
| 307 | flags.column(i) = flagCol(i); |
---|
| 308 | } |
---|
| 309 | // now the complex if exists |
---|
| 310 | Bool hasxpol = False; |
---|
| 311 | xpol.resize(); |
---|
[827] | 312 | if ( tab.nrow() == 4 ) { |
---|
[822] | 313 | hasxpol = True; |
---|
| 314 | xpol.resize(nchan); |
---|
| 315 | Vector<Float> reals, imags; |
---|
| 316 | reals = specCol(2); imags = specCol(3); |
---|
| 317 | for (uInt k=0; k < nchan; ++k) { |
---|
[827] | 318 | xpol[k] = Complex(reals[k], imags[k]); |
---|
[822] | 319 | } |
---|
| 320 | } |
---|
| 321 | } |
---|
[827] | 322 | |
---|
[1387] | 323 | // For writing MS data, if there is the reference to |
---|
| 324 | // original pointing table it replace it by it. |
---|
| 325 | void STWriter::replacePtTab (const Table& tab, const std::string& fname) |
---|
| 326 | { |
---|
| 327 | String oldPtTabName = fname; |
---|
| 328 | oldPtTabName.append("/POINTING"); |
---|
| 329 | if ( tab.keywordSet().isDefined("POINTING") ) { |
---|
| 330 | String PointingTab = tab.keywordSet().asString("POINTING"); |
---|
| 331 | if ( Table::isReadable(PointingTab) ) { |
---|
| 332 | Table newPtTab(PointingTab, Table::Old); |
---|
| 333 | newPtTab.copy(oldPtTabName, Table::New); |
---|
| 334 | ostringstream oss; |
---|
| 335 | oss << "STWriter: copied " <<PointingTab << " to " << fname; |
---|
| 336 | pushLog(String(oss)); |
---|
| 337 | } |
---|
| 338 | } |
---|
| 339 | } |
---|
[827] | 340 | |
---|
| 341 | } |
---|