| 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 1072 2006-07-06 01:14:49Z mar637 $ |
|---|
| 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== "FITS") { |
|---|
| 68 | writer_ = 0; |
|---|
| 69 | } else if (t== "ASCII") { |
|---|
| 70 | writer_ = 0; |
|---|
| 71 | } else { |
|---|
| 72 | throw (AipsError("Unrecognized export format")); |
|---|
| 73 | } |
|---|
| 74 | } |
|---|
| 75 | |
|---|
| 76 | STWriter::~STWriter() |
|---|
| 77 | { |
|---|
| 78 | if (writer_) { |
|---|
| 79 | delete writer_; |
|---|
| 80 | } |
|---|
| 81 | } |
|---|
| 82 | |
|---|
| 83 | Int STWriter::setFormat(const std::string &format) |
|---|
| 84 | { |
|---|
| 85 | if (format != format_) { |
|---|
| 86 | if (writer_) delete writer_; |
|---|
| 87 | } |
|---|
| 88 | |
|---|
| 89 | format_ = format; |
|---|
| 90 | String t(format_); |
|---|
| 91 | t.upcase(); |
|---|
| 92 | if (t== "MS2") { |
|---|
| 93 | writer_ = new PKSMS2writer(); |
|---|
| 94 | } else if (t== "SDFITS") { |
|---|
| 95 | writer_ = new PKSSDwriter(); |
|---|
| 96 | } else if (t== "FITS") { |
|---|
| 97 | writer_ = 0; |
|---|
| 98 | } else if (t== "ASCII") { |
|---|
| 99 | writer_ = 0; |
|---|
| 100 | } else { |
|---|
| 101 | throw (AipsError("Unrecognized Format")); |
|---|
| 102 | } |
|---|
| 103 | return 0; |
|---|
| 104 | } |
|---|
| 105 | |
|---|
| 106 | Int STWriter::write(const CountedPtr<Scantable> in, |
|---|
| 107 | const std::string &filename) |
|---|
| 108 | { |
|---|
| 109 | |
|---|
| 110 | // Image FITS |
|---|
| 111 | |
|---|
| 112 | if (format_=="FITS") { |
|---|
| 113 | // Bool verbose = True; |
|---|
| 114 | // SDFITSImageWriter iw; |
|---|
| 115 | // if (iw.write(*in, filename, verbose)) { |
|---|
| 116 | // return 0; |
|---|
| 117 | // } else { |
|---|
| 118 | // return 1; |
|---|
| 119 | // } |
|---|
| 120 | } else if (format_=="ASCII") { |
|---|
| 121 | STAsciiWriter iw; |
|---|
| 122 | if (iw.write(*in, filename)) { |
|---|
| 123 | return 0; |
|---|
| 124 | } else { |
|---|
| 125 | return 1; |
|---|
| 126 | } |
|---|
| 127 | } |
|---|
| 128 | |
|---|
| 129 | // MS or SDFITS |
|---|
| 130 | |
|---|
| 131 | // Extract the header from the table. |
|---|
| 132 | STHeader hdr = in->getHeader(); |
|---|
| 133 | //const Int nPol = hdr.npol; |
|---|
| 134 | //const Int nChan = hdr.nchan; |
|---|
| 135 | int nIF = in->nif(); |
|---|
| 136 | Vector<uInt> nPol(nIF),nChan(nIF); |
|---|
| 137 | Vector<Bool> havexpol(nIF); |
|---|
| 138 | for (int i=0;i<nIF;++i) { |
|---|
| 139 | nPol(i) = in->npol(); |
|---|
| 140 | nChan(i) = in->nchan(i); |
|---|
| 141 | havexpol(i) = nPol(i) > 2; |
|---|
| 142 | } |
|---|
| 143 | |
|---|
| 144 | const Table table = in->table(); |
|---|
| 145 | // ROArrayColumn<uInt> freqIDCol(table, "FREQ_ID"); |
|---|
| 146 | // Vector<uInt> freqIDs; |
|---|
| 147 | |
|---|
| 148 | // Create the output file and write static data. |
|---|
| 149 | Int status; |
|---|
| 150 | //Bool havexpol = Bool(in->npol() > 2); |
|---|
| 151 | status = writer_->create(String(filename), hdr.observer, hdr.project, |
|---|
| 152 | hdr.antennaname, hdr.antennaposition, |
|---|
| 153 | hdr.obstype, hdr.equinox, hdr.freqref, |
|---|
| 154 | nChan, nPol, havexpol, False); |
|---|
| 155 | if ( status ) { |
|---|
| 156 | throw(AipsError("Failed to create output file")); |
|---|
| 157 | } |
|---|
| 158 | |
|---|
| 159 | Double srcVel; |
|---|
| 160 | |
|---|
| 161 | String fieldName, srcName, tcalTime; |
|---|
| 162 | Vector<Float> calFctr, sigma, tcal, tsys; |
|---|
| 163 | Vector<Double> direction(2), scanRate(2), srcDir(2), srcPM(2); |
|---|
| 164 | Matrix<Float> spectra; |
|---|
| 165 | Matrix<uChar> flagtra; |
|---|
| 166 | Complex xCalFctr; |
|---|
| 167 | Int count = 0; |
|---|
| 168 | Int scanno = 1; |
|---|
| 169 | // use spearate iterators to ensure renumbering of all numbers |
|---|
| 170 | TableIterator scanit(table, "SCANNO"); |
|---|
| 171 | while (!scanit.pastEnd() ) { |
|---|
| 172 | Table stable = scanit.table(); |
|---|
| 173 | TableIterator beamit(stable, "BEAMNO"); |
|---|
| 174 | Int beamno = 1; |
|---|
| 175 | while (!beamit.pastEnd() ) { |
|---|
| 176 | Table btable = beamit.table(); |
|---|
| 177 | // position only varies by beam |
|---|
| 178 | MDirection::ScalarColumn dirCol(btable, "DIRECTION"); |
|---|
| 179 | Vector<Double> direction = dirCol(0).getAngle("rad").getValue(); |
|---|
| 180 | TableIterator cycit(btable, "CYCLENO"); |
|---|
| 181 | ROArrayColumn<Double> srateCol(btable, "SCANRATE"); |
|---|
| 182 | srateCol.get(0, scanRate); |
|---|
| 183 | ROArrayColumn<Double> spmCol(btable, "SRCPROPERMOTION"); |
|---|
| 184 | spmCol.get(0, srcPM); |
|---|
| 185 | ROArrayColumn <Double> sdirCol(btable, "SRCDIRECTION"); |
|---|
| 186 | sdirCol.get(0, srcDir); |
|---|
| 187 | ROScalarColumn<Double> svelCol(btable, "SRCVELOCITY"); |
|---|
| 188 | svelCol.get(0, srcVel); |
|---|
| 189 | Int cycno = 1; |
|---|
| 190 | while (!cycit.pastEnd() ) { |
|---|
| 191 | Table ctable = cycit.table(); |
|---|
| 192 | TableIterator ifit(ctable, "IFNO"); |
|---|
| 193 | Int ifno = 1; |
|---|
| 194 | while (!ifit.pastEnd() ) { |
|---|
| 195 | Table itable = ifit.table(); |
|---|
| 196 | TableRow row(itable); |
|---|
| 197 | // use the first row to fill in all the "metadata" |
|---|
| 198 | const TableRecord& rec = row.get(0); |
|---|
| 199 | ROArrayColumn<Float> specCol(itable, "SPECTRA"); |
|---|
| 200 | uInt nchan = specCol(0).nelements(); |
|---|
| 201 | Double cdelt,crval,crpix, restfreq; |
|---|
| 202 | Float focusAxi, focusTan, focusRot, |
|---|
| 203 | temperature, pressure, humidity, windSpeed, windAz; |
|---|
| 204 | Float tmp0,tmp1,tmp2,tmp3,tmp4; |
|---|
| 205 | Vector<Float> tcalval; |
|---|
| 206 | String stmp0,stmp1, tcalt; |
|---|
| 207 | in->frequencies().getEntry(crpix,crval,cdelt, rec.asuInt("FREQ_ID")); |
|---|
| 208 | in->focus().getEntry(focusAxi, focusTan, focusRot, |
|---|
| 209 | tmp0,tmp1,tmp2,tmp3,tmp4, |
|---|
| 210 | rec.asuInt("FOCUS_ID")); |
|---|
| 211 | in->molecules().getEntry(restfreq,stmp0,stmp1,rec.asuInt("MOLECULE_ID")); |
|---|
| 212 | in->tcal().getEntry(tcalt,tcalval,rec.asuInt("TCAL_ID")); |
|---|
| 213 | in->weather().getEntry(temperature, pressure, humidity, |
|---|
| 214 | windSpeed, windAz, |
|---|
| 215 | rec.asuInt("WEATHER_ID")); |
|---|
| 216 | Double pixel = Double(nchan/2); |
|---|
| 217 | Double refFreqNew = (pixel-crpix)*cdelt + crval; |
|---|
| 218 | // ok, now we have nrows for the n polarizations in this table |
|---|
| 219 | Matrix<Float> specs; |
|---|
| 220 | Matrix<uChar> flags; |
|---|
| 221 | Vector<Complex> xpol; |
|---|
| 222 | polConversion(specs, flags, xpol, itable); |
|---|
| 223 | Vector<Float> tsys = tsysFromTable(itable); |
|---|
| 224 | // dummy data |
|---|
| 225 | uInt npol = specs.ncolumn(); |
|---|
| 226 | |
|---|
| 227 | Matrix<Float> baseLin(npol,2, 0.0f); |
|---|
| 228 | Matrix<Float> baseSub(npol,9, 0.0f); |
|---|
| 229 | Complex xCalFctr; |
|---|
| 230 | Vector<Double> scanRate(2, 0.0); |
|---|
| 231 | Vector<Float> sigma(npol, 0.0f); |
|---|
| 232 | Vector<Float> calFctr(npol, 0.0f); |
|---|
| 233 | status = writer_->write(scanno, cycno, rec.asDouble("TIME"), |
|---|
| 234 | rec.asDouble("INTERVAL"), |
|---|
| 235 | rec.asString("FIELDNAME"), |
|---|
| 236 | rec.asString("SRCNAME"), |
|---|
| 237 | srcDir, srcPM, srcVel,hdr.obstype, |
|---|
| 238 | ifno, |
|---|
| 239 | refFreqNew, nchan*abs(cdelt), cdelt, |
|---|
| 240 | restfreq, |
|---|
| 241 | tcal, |
|---|
| 242 | tcalt, |
|---|
| 243 | rec.asFloat("AZIMUTH"), |
|---|
| 244 | rec.asFloat("ELEVATION"), |
|---|
| 245 | rec.asFloat("PARANGLE"), |
|---|
| 246 | focusAxi, focusTan, focusRot, |
|---|
| 247 | temperature, |
|---|
| 248 | pressure, humidity, windSpeed, windAz, |
|---|
| 249 | rec.asInt("REFBEAMNO")+1, beamno, |
|---|
| 250 | direction, |
|---|
| 251 | scanRate, |
|---|
| 252 | tsys, |
|---|
| 253 | sigma, calFctr,// not in scantable |
|---|
| 254 | baseLin, baseSub,// not in scantable |
|---|
| 255 | specs, flags, |
|---|
| 256 | xCalFctr,// |
|---|
| 257 | xpol); |
|---|
| 258 | if ( status ) { |
|---|
| 259 | writer_->close(); |
|---|
| 260 | throw(AipsError("STWriter: Failed to export Scantable.")); |
|---|
| 261 | } |
|---|
| 262 | ++count; |
|---|
| 263 | ++ifno; |
|---|
| 264 | ++ifit; |
|---|
| 265 | } |
|---|
| 266 | ++cycno; |
|---|
| 267 | ++cycit; |
|---|
| 268 | } |
|---|
| 269 | ++beamno; |
|---|
| 270 | ++beamit; |
|---|
| 271 | } |
|---|
| 272 | ++scanno; |
|---|
| 273 | ++scanit; |
|---|
| 274 | } |
|---|
| 275 | ostringstream oss; |
|---|
| 276 | oss << "STWriter: wrote " << count << " rows to " << filename; |
|---|
| 277 | pushLog(String(oss)); |
|---|
| 278 | writer_->close(); |
|---|
| 279 | |
|---|
| 280 | return 0; |
|---|
| 281 | } |
|---|
| 282 | |
|---|
| 283 | Vector<Float> STWriter::tsysFromTable(const Table& tab) |
|---|
| 284 | { |
|---|
| 285 | ROArrayColumn<Float> tsysCol(tab, "TSYS"); |
|---|
| 286 | Vector<Float> out(tab.nrow()); |
|---|
| 287 | Vector<Float> tmp; |
|---|
| 288 | for (uInt i=0; i<tab.nrow(); ++i) { |
|---|
| 289 | tmp.resize(); |
|---|
| 290 | tmp = tsysCol(i); |
|---|
| 291 | out[i] = tmp[0]; |
|---|
| 292 | } |
|---|
| 293 | return out; |
|---|
| 294 | } |
|---|
| 295 | |
|---|
| 296 | void STWriter::polConversion( Matrix< Float >& specs, Matrix< uChar >& flags, |
|---|
| 297 | Vector< Complex > & xpol, const Table & tab ) |
|---|
| 298 | { |
|---|
| 299 | String poltype = tab.keywordSet().asString("POLTYPE"); |
|---|
| 300 | if ( poltype != "linear") { |
|---|
| 301 | String msg = "poltype = " + poltype + " not yet supported in output."; |
|---|
| 302 | throw(AipsError(msg)); |
|---|
| 303 | } |
|---|
| 304 | ROArrayColumn<Float> specCol(tab, "SPECTRA"); |
|---|
| 305 | ROArrayColumn<uChar> flagCol(tab, "FLAGTRA"); |
|---|
| 306 | uInt nchan = specCol(0).nelements(); |
|---|
| 307 | uInt ncol = (tab.nrow()==1 ? 1: 2 ); |
|---|
| 308 | specs.resize(nchan, ncol); |
|---|
| 309 | flags.resize(nchan, ncol); |
|---|
| 310 | // the linears |
|---|
| 311 | for (uInt i=0; i<ncol; ++i) { |
|---|
| 312 | specs.column(i) = specCol(i); |
|---|
| 313 | flags.column(i) = flagCol(i); |
|---|
| 314 | } |
|---|
| 315 | // now the complex if exists |
|---|
| 316 | Bool hasxpol = False; |
|---|
| 317 | xpol.resize(); |
|---|
| 318 | if ( tab.nrow() == 4 ) { |
|---|
| 319 | hasxpol = True; |
|---|
| 320 | xpol.resize(nchan); |
|---|
| 321 | Vector<Float> reals, imags; |
|---|
| 322 | reals = specCol(2); imags = specCol(3); |
|---|
| 323 | for (uInt k=0; k < nchan; ++k) { |
|---|
| 324 | xpol[k] = Complex(reals[k], imags[k]); |
|---|
| 325 | } |
|---|
| 326 | } |
|---|
| 327 | } |
|---|
| 328 | |
|---|
| 329 | |
|---|
| 330 | } |
|---|
