| 1 | //
|
|---|
| 2 | // C++ Implementation: STFiller
|
|---|
| 3 | //
|
|---|
| 4 | // Description:
|
|---|
| 5 | //
|
|---|
| 6 | //
|
|---|
| 7 | // Author: Malte Marquarding <asap@atnf.csiro.au>, (C) 2006
|
|---|
| 8 | //
|
|---|
| 9 | // Copyright: See COPYING file that comes with this distribution
|
|---|
| 10 | //
|
|---|
| 11 | //
|
|---|
| 12 | #include <casa/iostream.h>
|
|---|
| 13 | #include <casa/iomanip.h>
|
|---|
| 14 |
|
|---|
| 15 | #include <casa/Exceptions.h>
|
|---|
| 16 | #include <casa/OS/Path.h>
|
|---|
| 17 | #include <casa/OS/File.h>
|
|---|
| 18 | #include <casa/Quanta/Unit.h>
|
|---|
| 19 | #include <casa/Arrays/ArrayMath.h>
|
|---|
| 20 | #include <casa/Arrays/ArrayLogical.h>
|
|---|
| 21 | #include <casa/Utilities/Regex.h>
|
|---|
| 22 |
|
|---|
| 23 | #include <casa/Containers/RecordField.h>
|
|---|
| 24 |
|
|---|
| 25 | #include <tables/Tables/TableRow.h>
|
|---|
| 26 |
|
|---|
| 27 | #include <atnf/PKSIO/PKSreader.h>
|
|---|
| 28 |
|
|---|
| 29 | #include "STDefs.h"
|
|---|
| 30 | #include "STAttr.h"
|
|---|
| 31 |
|
|---|
| 32 | #include "STFiller.h"
|
|---|
| 33 | #include "STHeader.h"
|
|---|
| 34 |
|
|---|
| 35 | using namespace casa;
|
|---|
| 36 |
|
|---|
| 37 | namespace asap {
|
|---|
| 38 |
|
|---|
| 39 | STFiller::STFiller() :
|
|---|
| 40 | reader_(0),
|
|---|
| 41 | header_(0),
|
|---|
| 42 | table_(0)
|
|---|
| 43 | {
|
|---|
| 44 | }
|
|---|
| 45 |
|
|---|
| 46 | STFiller::STFiller( CountedPtr< Scantable > stbl ) :
|
|---|
| 47 | reader_(0),
|
|---|
| 48 | header_(0),
|
|---|
| 49 | table_(stbl)
|
|---|
| 50 | {
|
|---|
| 51 | }
|
|---|
| 52 |
|
|---|
| 53 | STFiller::STFiller(const std::string& filename, int whichIF, int whichBeam ) :
|
|---|
| 54 | reader_(0),
|
|---|
| 55 | header_(0),
|
|---|
| 56 | table_(0)
|
|---|
| 57 | {
|
|---|
| 58 | open(filename, whichIF, whichBeam);
|
|---|
| 59 | }
|
|---|
| 60 |
|
|---|
| 61 | STFiller::~STFiller()
|
|---|
| 62 | {
|
|---|
| 63 | close();
|
|---|
| 64 | }
|
|---|
| 65 |
|
|---|
| 66 | void STFiller::open( const std::string& filename, int whichIF, int whichBeam )
|
|---|
| 67 | {
|
|---|
| 68 | if (table_.null()) {
|
|---|
| 69 | table_ = new Scantable();
|
|---|
| 70 | }
|
|---|
| 71 | if (reader_) { delete reader_; reader_ = 0; }
|
|---|
| 72 | Bool haveBase, haveSpectra;
|
|---|
| 73 |
|
|---|
| 74 | String inName(filename);
|
|---|
| 75 | Path path(inName);
|
|---|
| 76 | inName = path.expandedName();
|
|---|
| 77 |
|
|---|
| 78 | File file(inName);
|
|---|
| 79 | if ( !file.exists() ) {
|
|---|
| 80 | throw(AipsError("File does not exist"));
|
|---|
| 81 | }
|
|---|
| 82 | filename_ = inName;
|
|---|
| 83 |
|
|---|
| 84 | // Create reader and fill in values for arguments
|
|---|
| 85 | String format;
|
|---|
| 86 | Vector<Bool> beams, ifs;
|
|---|
| 87 | Vector<uInt> nchans,npols;
|
|---|
| 88 | if ( (reader_ = getPKSreader(inName, 0, 0, format, beams, ifs,
|
|---|
| 89 | nchans, npols, haveXPol_,haveBase, haveSpectra
|
|---|
| 90 | )) == 0 ) {
|
|---|
| 91 | throw(AipsError("Creation of PKSreader failed"));
|
|---|
| 92 | }
|
|---|
| 93 | if (!haveSpectra) {
|
|---|
| 94 | delete reader_;
|
|---|
| 95 | reader_ = 0;
|
|---|
| 96 | throw(AipsError("No spectral data in file."));
|
|---|
| 97 | return;
|
|---|
| 98 | }
|
|---|
| 99 | nBeam_ = beams.nelements();
|
|---|
| 100 | nIF_ = ifs.nelements();
|
|---|
| 101 | // Get basic parameters.
|
|---|
| 102 | if ( anyEQ(haveXPol_, True) ) {
|
|---|
| 103 | pushLog("Cross polarization present");
|
|---|
| 104 | for (uInt i=0; i< npols.nelements();++i) {
|
|---|
| 105 | if (npols[i] < 3) npols[i] += 2;// Convert Complex -> 2 Floats
|
|---|
| 106 | }
|
|---|
| 107 | }
|
|---|
| 108 | if (header_) delete header_;
|
|---|
| 109 | header_ = new STHeader();
|
|---|
| 110 | header_->nchan = max(nchans);
|
|---|
| 111 | header_->npol = max(npols);
|
|---|
| 112 | header_->nbeam = nBeam_;
|
|---|
| 113 |
|
|---|
| 114 | // not the right thing to do?!
|
|---|
| 115 | //if ( nPol_ == 1 ) header_->poltype = "stokes";
|
|---|
| 116 | //else header_->poltype = "linear";
|
|---|
| 117 | header_->poltype = "linear";
|
|---|
| 118 | Int status = reader_->getHeader(header_->observer, header_->project,
|
|---|
| 119 | header_->antennaname, header_->antennaposition,
|
|---|
| 120 | header_->obstype,header_->equinox,
|
|---|
| 121 | header_->freqref,
|
|---|
| 122 | header_->utc, header_->reffreq,
|
|---|
| 123 | header_->bandwidth);
|
|---|
| 124 |
|
|---|
| 125 | if (status) {
|
|---|
| 126 | delete reader_;
|
|---|
| 127 | reader_ = 0;
|
|---|
| 128 | delete header_;
|
|---|
| 129 | header_ = 0;
|
|---|
| 130 | throw(AipsError("Failed to get header."));
|
|---|
| 131 | }
|
|---|
| 132 | if ((header_->obstype).matches("*SW*")) {
|
|---|
| 133 | // need robust way here - probably read ahead of next timestamp
|
|---|
| 134 | pushLog("Header indicates frequency switched observation.\n"
|
|---|
| 135 | "setting # of IFs = 1 ");
|
|---|
| 136 | nIF_ = 1;
|
|---|
| 137 | header_->obstype = String("fswitch");
|
|---|
| 138 | }
|
|---|
| 139 | // Determine Telescope and set brightness unit
|
|---|
| 140 |
|
|---|
| 141 | Bool throwIt = False;
|
|---|
| 142 | Instrument inst = STAttr::convertInstrument(header_->antennaname, throwIt);
|
|---|
| 143 | header_->fluxunit = "Jy";
|
|---|
| 144 | if (inst==ATMOPRA || inst==TIDBINBILLA) {
|
|---|
| 145 | header_->fluxunit = "K";
|
|---|
| 146 | }
|
|---|
| 147 |
|
|---|
| 148 | header_->nif = nIF_;
|
|---|
| 149 | header_->epoch = "UTC";
|
|---|
| 150 | // *** header_->frequnit = "Hz"
|
|---|
| 151 | // Apply selection criteria.
|
|---|
| 152 | Vector<Int> ref;
|
|---|
| 153 | ifOffset_ = 0;
|
|---|
| 154 | if (whichIF>=0) {
|
|---|
| 155 | if (whichIF>=0 && whichIF<nIF_) {
|
|---|
| 156 | ifs = False;
|
|---|
| 157 | ifs(whichIF) = True;
|
|---|
| 158 | header_->nif = 1;
|
|---|
| 159 | nIF_ = 1;
|
|---|
| 160 | ifOffset_ = whichIF;
|
|---|
| 161 | } else {
|
|---|
| 162 | delete reader_;
|
|---|
| 163 | reader_ = 0;
|
|---|
| 164 | delete header_;
|
|---|
| 165 | header_ = 0;
|
|---|
| 166 | throw(AipsError("Illegal IF selection"));
|
|---|
| 167 | }
|
|---|
| 168 | }
|
|---|
| 169 |
|
|---|
| 170 | beamOffset_ = 0;
|
|---|
| 171 | if (whichBeam>=0) {
|
|---|
| 172 | if (whichBeam>=0 && whichBeam<nBeam_) {
|
|---|
| 173 | beams = False;
|
|---|
| 174 | beams(whichBeam) = True;
|
|---|
| 175 | header_->nbeam = 1;
|
|---|
| 176 | nBeam_ = 1;
|
|---|
| 177 | beamOffset_ = whichBeam;
|
|---|
| 178 | } else {
|
|---|
| 179 | delete reader_;
|
|---|
| 180 | reader_ = 0;
|
|---|
| 181 | delete header_;
|
|---|
| 182 | header_ = 0;
|
|---|
| 183 | throw(AipsError("Illegal Beam selection"));
|
|---|
| 184 | }
|
|---|
| 185 | }
|
|---|
| 186 | Vector<Int> start(nIF_, 1);
|
|---|
| 187 | Vector<Int> end(nIF_, 0);
|
|---|
| 188 | reader_->select(beams, ifs, start, end, ref, True, haveXPol_[0], False);
|
|---|
| 189 | table_->setHeader(*header_);
|
|---|
| 190 | }
|
|---|
| 191 |
|
|---|
| 192 | void STFiller::close( )
|
|---|
| 193 | {
|
|---|
| 194 | delete reader_;reader_=0;
|
|---|
| 195 | delete header_;header_=0;
|
|---|
| 196 | table_ = 0;
|
|---|
| 197 | }
|
|---|
| 198 |
|
|---|
| 199 | int asap::STFiller::read( )
|
|---|
| 200 | {
|
|---|
| 201 | int status = 0;
|
|---|
| 202 |
|
|---|
| 203 | Int beamNo, IFno, refBeam, scanNo, cycleNo;
|
|---|
| 204 | Float azimuth, elevation, focusAxi, focusRot, focusTan,
|
|---|
| 205 | humidity, parAngle, pressure, temperature, windAz, windSpeed;
|
|---|
| 206 | Double bandwidth, freqInc, interval, mjd, refFreq, restFreq, srcVel;
|
|---|
| 207 | String fieldName, srcName, tcalTime, obsType;
|
|---|
| 208 | Vector<Float> calFctr, sigma, tcal, tsys;
|
|---|
| 209 | Matrix<Float> baseLin, baseSub;
|
|---|
| 210 | Vector<Double> direction(2), scanRate(2), srcDir(2), srcPM(2);
|
|---|
| 211 | Matrix<Float> spectra;
|
|---|
| 212 | Matrix<uChar> flagtra;
|
|---|
| 213 | Complex xCalFctr;
|
|---|
| 214 | Vector<Complex> xPol;
|
|---|
| 215 | while ( status == 0 ) {
|
|---|
| 216 | status = reader_->read(scanNo, cycleNo, mjd, interval, fieldName,
|
|---|
| 217 | srcName, srcDir, srcPM, srcVel, obsType, IFno,
|
|---|
| 218 | refFreq, bandwidth, freqInc, restFreq, tcal, tcalTime,
|
|---|
| 219 | azimuth, elevation, parAngle, focusAxi,
|
|---|
| 220 | focusTan, focusRot, temperature, pressure,
|
|---|
| 221 | humidity, windSpeed, windAz, refBeam,
|
|---|
| 222 | beamNo, direction, scanRate,
|
|---|
| 223 | tsys, sigma, calFctr, baseLin, baseSub,
|
|---|
| 224 | spectra, flagtra, xCalFctr, xPol);
|
|---|
| 225 | if ( status != 0 ) break;
|
|---|
| 226 | Regex filterrx(".*[SL|PA]$");
|
|---|
| 227 | if ( obsType.matches(filterrx)) {
|
|---|
| 228 | //cerr << "ignoring paddle scan" << endl;
|
|---|
| 229 | continue;
|
|---|
| 230 | }
|
|---|
| 231 | TableRow row(table_->table());
|
|---|
| 232 | TableRecord& rec = row.record();
|
|---|
| 233 | // fields that don't get used and are just passed through asap
|
|---|
| 234 | RecordFieldPtr<Array<Double> > srateCol(rec, "SCANRATE");
|
|---|
| 235 | *srateCol = scanRate;
|
|---|
| 236 | RecordFieldPtr<Array<Double> > spmCol(rec, "SRCPROPERMOTION");
|
|---|
| 237 | *spmCol = srcPM;
|
|---|
| 238 | RecordFieldPtr<Array<Double> > sdirCol(rec, "SRCDIRECTION");
|
|---|
| 239 | *sdirCol = srcDir;
|
|---|
| 240 | RecordFieldPtr<Double> svelCol(rec, "SRCVELOCITY");
|
|---|
| 241 | *svelCol = srcVel;
|
|---|
| 242 | // the real stuff
|
|---|
| 243 | RecordFieldPtr<Int> fitCol(rec, "FIT_ID");
|
|---|
| 244 | *fitCol = -1;
|
|---|
| 245 | RecordFieldPtr<uInt> scanoCol(rec, "SCANNO");
|
|---|
| 246 | *scanoCol = scanNo-1;
|
|---|
| 247 | RecordFieldPtr<uInt> cyclenoCol(rec, "CYCLENO");
|
|---|
| 248 | *cyclenoCol = cycleNo-1;
|
|---|
| 249 | RecordFieldPtr<Double> mjdCol(rec, "TIME");
|
|---|
| 250 | *mjdCol = mjd;
|
|---|
| 251 | RecordFieldPtr<Double> intCol(rec, "INTERVAL");
|
|---|
| 252 | *intCol = interval;
|
|---|
| 253 | RecordFieldPtr<String> srcnCol(rec, "SRCNAME");
|
|---|
| 254 | RecordFieldPtr<Int> srctCol(rec, "SRCTYPE");
|
|---|
| 255 | // try to auto-identify if it is on or off.
|
|---|
| 256 | Regex rx(".*[e|w|_R]$");
|
|---|
| 257 | Regex rx2("_S$");
|
|---|
| 258 | Int match = srcName.matches(rx);
|
|---|
| 259 | if (match) {
|
|---|
| 260 | *srcnCol = srcName;
|
|---|
| 261 | } else {
|
|---|
| 262 | *srcnCol = srcName.before(rx2);
|
|---|
| 263 | }
|
|---|
| 264 | //*srcnCol = srcName;//.before(rx2);
|
|---|
| 265 | *srctCol = match;
|
|---|
| 266 | RecordFieldPtr<uInt> beamCol(rec, "BEAMNO");
|
|---|
| 267 | *beamCol = beamNo-beamOffset_-1;
|
|---|
| 268 | RecordFieldPtr<Int> rbCol(rec, "REFBEAMNO");
|
|---|
| 269 | Int rb = -1;
|
|---|
| 270 | if (nBeam_ > 1 ) rb = refBeam-1;
|
|---|
| 271 | *rbCol = rb;
|
|---|
| 272 | RecordFieldPtr<uInt> ifCol(rec, "IFNO");
|
|---|
| 273 | *ifCol = IFno-ifOffset_- 1;
|
|---|
| 274 | uInt id;
|
|---|
| 275 | /// @todo this has to change when nchan isn't global anymore
|
|---|
| 276 | id = table_->frequencies().addEntry(Double(header_->nchan/2),
|
|---|
| 277 | refFreq, freqInc);
|
|---|
| 278 | RecordFieldPtr<uInt> mfreqidCol(rec, "FREQ_ID");
|
|---|
| 279 | *mfreqidCol = id;
|
|---|
| 280 |
|
|---|
| 281 | id = table_->molecules().addEntry(restFreq);
|
|---|
| 282 | RecordFieldPtr<uInt> molidCol(rec, "MOLECULE_ID");
|
|---|
| 283 | *molidCol = id;
|
|---|
| 284 |
|
|---|
| 285 | id = table_->tcal().addEntry(tcalTime, tcal);
|
|---|
| 286 | RecordFieldPtr<uInt> mcalidCol(rec, "TCAL_ID");
|
|---|
| 287 | *mcalidCol = id;
|
|---|
| 288 | id = table_->weather().addEntry(temperature, pressure, humidity,
|
|---|
| 289 | windSpeed, windAz);
|
|---|
| 290 | RecordFieldPtr<uInt> mweatheridCol(rec, "WEATHER_ID");
|
|---|
| 291 | *mweatheridCol = id;
|
|---|
| 292 | RecordFieldPtr<uInt> mfocusidCol(rec, "FOCUS_ID");
|
|---|
| 293 | id = table_->focus().addEntry(focusAxi, focusTan, focusRot);
|
|---|
| 294 | *mfocusidCol = id;
|
|---|
| 295 | RecordFieldPtr<Array<Double> > dirCol(rec, "DIRECTION");
|
|---|
| 296 | *dirCol = direction;
|
|---|
| 297 | RecordFieldPtr<Float> azCol(rec, "AZIMUTH");
|
|---|
| 298 | *azCol = azimuth;
|
|---|
| 299 | RecordFieldPtr<Float> elCol(rec, "ELEVATION");
|
|---|
| 300 | *elCol = elevation;
|
|---|
| 301 |
|
|---|
| 302 | RecordFieldPtr<Float> parCol(rec, "PARANGLE");
|
|---|
| 303 | *parCol = parAngle;
|
|---|
| 304 |
|
|---|
| 305 | RecordFieldPtr< Array<Float> > specCol(rec, "SPECTRA");
|
|---|
| 306 | RecordFieldPtr< Array<uChar> > flagCol(rec, "FLAGTRA");
|
|---|
| 307 | RecordFieldPtr< uInt > polnoCol(rec, "POLNO");
|
|---|
| 308 |
|
|---|
| 309 | RecordFieldPtr< Array<Float> > tsysCol(rec, "TSYS");
|
|---|
| 310 | // Turn the (nchan,npol) matrix and possible complex xPol vector
|
|---|
| 311 | // into 2-4 rows in the scantable
|
|---|
| 312 | Vector<Float> tsysvec(1);
|
|---|
| 313 | // Why is spectra.ncolumn() == 3 for haveXPol_ == True
|
|---|
| 314 | uInt npol = (spectra.ncolumn()==1 ? 1: 2);
|
|---|
| 315 | for ( uInt i=0; i< npol; ++i ) {
|
|---|
| 316 | tsysvec = tsys(i);
|
|---|
| 317 | *tsysCol = tsysvec;
|
|---|
| 318 | *polnoCol = i;
|
|---|
| 319 |
|
|---|
| 320 | *specCol = spectra.column(i);
|
|---|
| 321 | *flagCol = flagtra.column(i);
|
|---|
| 322 | table_->table().addRow();
|
|---|
| 323 | row.put(table_->table().nrow()-1, rec);
|
|---|
| 324 | }
|
|---|
| 325 | if ( haveXPol_[0] ) {
|
|---|
| 326 | // no tsys given for xpol, so emulate it
|
|---|
| 327 | tsysvec = sqrt(tsys[0]*tsys[1]);
|
|---|
| 328 | *tsysCol = tsysvec;
|
|---|
| 329 | // add real part of cross pol
|
|---|
| 330 | *polnoCol = 2;
|
|---|
| 331 | Vector<Float> r(real(xPol));
|
|---|
| 332 | *specCol = r;
|
|---|
| 333 | // make up flags from linears
|
|---|
| 334 | /// @fixme this has to be a bitwise or of both pols
|
|---|
| 335 | *flagCol = flagtra.column(0);// | flagtra.column(1);
|
|---|
| 336 | table_->table().addRow();
|
|---|
| 337 | row.put(table_->table().nrow()-1, rec);
|
|---|
| 338 | // ad imaginary part of cross pol
|
|---|
| 339 | *polnoCol = 3;
|
|---|
| 340 | Vector<Float> im(imag(xPol));
|
|---|
| 341 | *specCol = im;
|
|---|
| 342 | table_->table().addRow();
|
|---|
| 343 | row.put(table_->table().nrow()-1, rec);
|
|---|
| 344 | }
|
|---|
| 345 | }
|
|---|
| 346 | if (status > 0) {
|
|---|
| 347 | close();
|
|---|
| 348 | throw(AipsError("Reading error occured, data possibly corrupted."));
|
|---|
| 349 | }
|
|---|
| 350 | return status;
|
|---|
| 351 | }
|
|---|
| 352 |
|
|---|
| 353 | }//namespace asap
|
|---|
