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