source: trunk/src/Scantable.cpp@ 897

Last change on this file since 897 was 896, checked in by mar637, 19 years ago

enable polarimetry in asap2

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1//
2// C++ Implementation: Scantable
3//
4// Description:
5//
6//
7// Author: Malte Marquarding <asap@atnf.csiro.au>, (C) 2005
8//
9// Copyright: See COPYING file that comes with this distribution
10//
11//
12#include <map>
13
14#include <casa/aips.h>
15#include <casa/iostream.h>
16#include <casa/iomanip.h>
17#include <casa/OS/Path.h>
18#include <casa/OS/File.h>
19#include <casa/Arrays/Array.h>
20#include <casa/Arrays/ArrayMath.h>
21#include <casa/Arrays/MaskArrMath.h>
22#include <casa/Arrays/ArrayLogical.h>
23#include <casa/Arrays/ArrayAccessor.h>
24#include <casa/Arrays/VectorSTLIterator.h>
25#include <casa/Arrays/Vector.h>
26#include <casa/BasicMath/Math.h>
27#include <casa/BasicSL/Constants.h>
28#include <casa/Quanta/MVAngle.h>
29#include <casa/Containers/RecordField.h>
30
31#include <tables/Tables/TableParse.h>
32#include <tables/Tables/TableDesc.h>
33#include <tables/Tables/TableCopy.h>
34#include <tables/Tables/SetupNewTab.h>
35#include <tables/Tables/ScaColDesc.h>
36#include <tables/Tables/ArrColDesc.h>
37#include <tables/Tables/TableRow.h>
38#include <tables/Tables/TableVector.h>
39#include <tables/Tables/TableIter.h>
40
41#include <tables/Tables/ExprNode.h>
42#include <tables/Tables/TableRecord.h>
43#include <measures/Measures/MFrequency.h>
44#include <measures/Measures/MEpoch.h>
45#include <measures/Measures/MeasTable.h>
46#include <measures/Measures/MeasRef.h>
47#include <measures/TableMeasures/TableMeasRefDesc.h>
48#include <measures/TableMeasures/TableMeasValueDesc.h>
49#include <measures/TableMeasures/TableMeasDesc.h>
50#include <measures/TableMeasures/ScalarMeasColumn.h>
51#include <coordinates/Coordinates/CoordinateUtil.h>
52#include <casa/Quanta/MVTime.h>
53#include <casa/Quanta/MVAngle.h>
54
55#include "Scantable.h"
56#include "STPolLinear.h"
57#include "STAttr.h"
58
59using namespace casa;
60
61namespace asap {
62
63std::map<std::string, STPol::STPolFactory *> Scantable::factories_;
64
65void Scantable::initFactories() {
66 if ( factories_.empty() ) {
67 Scantable::factories_["linear"] = &STPolLinear::myFactory;
68 }
69}
70
71Scantable::Scantable(Table::TableType ttype) :
72 type_(ttype)
73{
74 initFactories();
75 setupMainTable();
76 freqTable_ = STFrequencies(*this);
77 table_.rwKeywordSet().defineTable("FREQUENCIES", freqTable_.table());
78 weatherTable_ = STWeather(*this);
79 table_.rwKeywordSet().defineTable("WEATHER", weatherTable_.table());
80 focusTable_ = STFocus(*this);
81 table_.rwKeywordSet().defineTable("FOCUS", focusTable_.table());
82 tcalTable_ = STTcal(*this);
83 table_.rwKeywordSet().defineTable("TCAL", tcalTable_.table());
84 moleculeTable_ = STMolecules(*this);
85 table_.rwKeywordSet().defineTable("MOLECULES", moleculeTable_.table());
86 historyTable_ = STHistory(*this);
87 table_.rwKeywordSet().defineTable("HISTORY", historyTable_.table());
88 setupFitTable();
89 fitTable_ = table_.keywordSet().asTable("FITS");
90 originalTable_ = table_;
91 attach();
92}
93
94Scantable::Scantable(const std::string& name, Table::TableType ttype) :
95 type_(ttype)
96{
97 initFactories();
98 Table tab(name, Table::Update);
99 Int version;
100 tab.keywordSet().get("VERSION", version);
101 if (version != version_) {
102 throw(AipsError("Unsupported version of ASAP file."));
103 }
104 if ( type_ == Table::Memory )
105 table_ = tab.copyToMemoryTable(generateName());
106 else
107 table_ = tab;
108 attachSubtables();
109 originalTable_ = table_;
110 attach();
111}
112
113Scantable::Scantable( const Scantable& other, bool clear )
114{
115 // with or without data
116 String newname = String(generateName());
117 type_ = other.table_.tableType();
118 if ( other.table_.tableType() == Table::Memory ) {
119 if ( clear ) {
120 table_ = TableCopy::makeEmptyMemoryTable(newname,
121 other.table_, True);
122 } else
123 table_ = other.table_.copyToMemoryTable(newname);
124 } else {
125 other.table_.deepCopy(newname, Table::New, False, Table::AipsrcEndian,
126 Bool(clear));
127 table_ = Table(newname, Table::Update);
128 copySubtables(other);
129 table_.markForDelete();
130 }
131
132 attachSubtables();
133 originalTable_ = table_;
134 attach();
135}
136
137void Scantable::copySubtables(const Scantable& other) {
138 Table t = table_.rwKeywordSet().asTable("FREQUENCIES");
139 TableCopy::copyRows(t, other.freqTable_.table());
140 t = table_.rwKeywordSet().asTable("FOCUS");
141 TableCopy::copyRows(t, other.focusTable_.table());
142 t = table_.rwKeywordSet().asTable("WEATHER");
143 TableCopy::copyRows(t, other.weatherTable_.table());
144 t = table_.rwKeywordSet().asTable("TCAL");
145 TableCopy::copyRows(t, other.tcalTable_.table());
146 t = table_.rwKeywordSet().asTable("MOLECULES");
147 TableCopy::copyRows(t, other.moleculeTable_.table());
148 t = table_.rwKeywordSet().asTable("HISTORY");
149 TableCopy::copyRows(t, other.historyTable_.table());
150}
151
152void Scantable::attachSubtables()
153{
154 freqTable_ = STFrequencies(table_);
155 focusTable_ = STFocus(table_);
156 weatherTable_ = STWeather(table_);
157 tcalTable_ = STTcal(table_);
158 moleculeTable_ = STMolecules(table_);
159 historyTable_ = STHistory(table_);
160}
161
162Scantable::~Scantable()
163{
164 cout << "~Scantable() " << this << endl;
165}
166
167void Scantable::setupMainTable()
168{
169 TableDesc td("", "1", TableDesc::Scratch);
170 td.comment() = "An ASAP Scantable";
171 td.rwKeywordSet().define("VERSION", Int(version_));
172
173 // n Cycles
174 td.addColumn(ScalarColumnDesc<uInt>("SCANNO"));
175 // new index every nBeam x nIF x nPol
176 td.addColumn(ScalarColumnDesc<uInt>("CYCLENO"));
177
178 td.addColumn(ScalarColumnDesc<uInt>("BEAMNO"));
179 td.addColumn(ScalarColumnDesc<uInt>("IFNO"));
180 td.rwKeywordSet().define("POLTYPE", String("linear"));
181 td.addColumn(ScalarColumnDesc<uInt>("POLNO"));
182
183 td.addColumn(ScalarColumnDesc<uInt>("FREQ_ID"));
184 td.addColumn(ScalarColumnDesc<uInt>("MOLECULE_ID"));
185 // linear, circular, stokes [I Q U V], stokes1 [I Plinear Pangle V]
186 td.addColumn(ScalarColumnDesc<Int>("REFBEAMNO"));
187
188 td.addColumn(ScalarColumnDesc<Double>("TIME"));
189 TableMeasRefDesc measRef(MEpoch::UTC); // UTC as default
190 TableMeasValueDesc measVal(td, "TIME");
191 TableMeasDesc<MEpoch> mepochCol(measVal, measRef);
192 mepochCol.write(td);
193
194 td.addColumn(ScalarColumnDesc<Double>("INTERVAL"));
195
196 td.addColumn(ScalarColumnDesc<String>("SRCNAME"));
197 // Type of source (on=0, off=1, other=-1)
198 td.addColumn(ScalarColumnDesc<Int>("SRCTYPE", Int(-1)));
199 td.addColumn(ScalarColumnDesc<String>("FIELDNAME"));
200
201 //The actual Data Vectors
202 td.addColumn(ArrayColumnDesc<Float>("SPECTRA"));
203 td.addColumn(ArrayColumnDesc<uChar>("FLAGTRA"));
204 td.addColumn(ArrayColumnDesc<Float>("TSYS"));
205
206 td.addColumn(ArrayColumnDesc<Double>("DIRECTION",
207 IPosition(1,2),
208 ColumnDesc::Direct));
209 TableMeasRefDesc mdirRef(MDirection::J2000); // default
210 TableMeasValueDesc tmvdMDir(td, "DIRECTION");
211 // the TableMeasDesc gives the column a type
212 TableMeasDesc<MDirection> mdirCol(tmvdMDir, mdirRef);
213 // writing create the measure column
214 mdirCol.write(td);
215 td.addColumn(ScalarColumnDesc<Double>("AZIMUTH"));
216 td.addColumn(ScalarColumnDesc<Double>("ELEVATION"));
217 td.addColumn(ScalarColumnDesc<Float>("PARANGLE"));
218
219 td.addColumn(ScalarColumnDesc<uInt>("TCAL_ID"));
220 td.addColumn(ScalarColumnDesc<uInt>("FIT_ID"));
221
222 td.addColumn(ScalarColumnDesc<uInt>("FOCUS_ID"));
223 td.addColumn(ScalarColumnDesc<uInt>("WEATHER_ID"));
224
225 td.rwKeywordSet().define("OBSMODE", String(""));
226
227 // Now create Table SetUp from the description.
228 SetupNewTable aNewTab(generateName(), td, Table::Scratch);
229 table_ = Table(aNewTab, type_, 0);
230 originalTable_ = table_;
231
232}
233
234void Scantable::setupFitTable()
235{
236 TableDesc td("", "1", TableDesc::Scratch);
237 td.addColumn(ScalarColumnDesc<uInt>("FIT_ID"));
238 td.addColumn(ArrayColumnDesc<String>("FUNCTIONS"));
239 td.addColumn(ArrayColumnDesc<Int>("COMPONENTS"));
240 td.addColumn(ArrayColumnDesc<Double>("PARAMETERS"));
241 td.addColumn(ArrayColumnDesc<Bool>("PARMASK"));
242 td.addColumn(ArrayColumnDesc<String>("FRAMEINFO"));
243 SetupNewTable aNewTab("fits", td, Table::Scratch);
244 Table aTable(aNewTab, Table::Memory);
245 table_.rwKeywordSet().defineTable("FITS", aTable);
246}
247
248void Scantable::attach()
249{
250 timeCol_.attach(table_, "TIME");
251 srcnCol_.attach(table_, "SRCNAME");
252 specCol_.attach(table_, "SPECTRA");
253 flagsCol_.attach(table_, "FLAGTRA");
254 tsysCol_.attach(table_, "TSYS");
255 cycleCol_.attach(table_,"CYCLENO");
256 scanCol_.attach(table_, "SCANNO");
257 beamCol_.attach(table_, "BEAMNO");
258 ifCol_.attach(table_, "IFNO");
259 polCol_.attach(table_, "POLNO");
260 integrCol_.attach(table_, "INTERVAL");
261 azCol_.attach(table_, "AZIMUTH");
262 elCol_.attach(table_, "ELEVATION");
263 dirCol_.attach(table_, "DIRECTION");
264 paraCol_.attach(table_, "PARANGLE");
265 fldnCol_.attach(table_, "FIELDNAME");
266 rbeamCol_.attach(table_, "REFBEAMNO");
267
268 mfitidCol_.attach(table_,"FIT_ID");
269 //fitidCol_.attach(fitTable_,"FIT_ID");
270
271 mfreqidCol_.attach(table_, "FREQ_ID");
272
273 mtcalidCol_.attach(table_, "TCAL_ID");
274
275 mfocusidCol_.attach(table_, "FOCUS_ID");
276
277 mmolidCol_.attach(table_, "MOLECULE_ID");
278}
279
280void Scantable::setHeader(const SDHeader& sdh)
281{
282 table_.rwKeywordSet().define("nIF", sdh.nif);
283 table_.rwKeywordSet().define("nBeam", sdh.nbeam);
284 table_.rwKeywordSet().define("nPol", sdh.npol);
285 table_.rwKeywordSet().define("nChan", sdh.nchan);
286 table_.rwKeywordSet().define("Observer", sdh.observer);
287 table_.rwKeywordSet().define("Project", sdh.project);
288 table_.rwKeywordSet().define("Obstype", sdh.obstype);
289 table_.rwKeywordSet().define("AntennaName", sdh.antennaname);
290 table_.rwKeywordSet().define("AntennaPosition", sdh.antennaposition);
291 table_.rwKeywordSet().define("Equinox", sdh.equinox);
292 table_.rwKeywordSet().define("FreqRefFrame", sdh.freqref);
293 table_.rwKeywordSet().define("FreqRefVal", sdh.reffreq);
294 table_.rwKeywordSet().define("Bandwidth", sdh.bandwidth);
295 table_.rwKeywordSet().define("UTC", sdh.utc);
296 table_.rwKeywordSet().define("FluxUnit", sdh.fluxunit);
297 table_.rwKeywordSet().define("Epoch", sdh.epoch);
298}
299
300SDHeader Scantable::getHeader() const
301{
302 SDHeader sdh;
303 table_.keywordSet().get("nBeam",sdh.nbeam);
304 table_.keywordSet().get("nIF",sdh.nif);
305 table_.keywordSet().get("nPol",sdh.npol);
306 table_.keywordSet().get("nChan",sdh.nchan);
307 table_.keywordSet().get("Observer", sdh.observer);
308 table_.keywordSet().get("Project", sdh.project);
309 table_.keywordSet().get("Obstype", sdh.obstype);
310 table_.keywordSet().get("AntennaName", sdh.antennaname);
311 table_.keywordSet().get("AntennaPosition", sdh.antennaposition);
312 table_.keywordSet().get("Equinox", sdh.equinox);
313 table_.keywordSet().get("FreqRefFrame", sdh.freqref);
314 table_.keywordSet().get("FreqRefVal", sdh.reffreq);
315 table_.keywordSet().get("Bandwidth", sdh.bandwidth);
316 table_.keywordSet().get("UTC", sdh.utc);
317 table_.keywordSet().get("FluxUnit", sdh.fluxunit);
318 table_.keywordSet().get("Epoch", sdh.epoch);
319 return sdh;
320}
321
322bool Scantable::conformant( const Scantable& other )
323{
324 return this->getHeader().conformant(other.getHeader());
325}
326
327
328int Scantable::nscan() const {
329 int n = 0;
330 int previous = -1; int current = 0;
331 for (uInt i=0; i< scanCol_.nrow();i++) {
332 scanCol_.getScalar(i,current);
333 if (previous != current) {
334 previous = current;
335 n++;
336 }
337 }
338 return n;
339}
340
341std::string Scantable::formatSec(Double x) const
342{
343 Double xcop = x;
344 MVTime mvt(xcop/24./3600.); // make days
345
346 if (x < 59.95)
347 return String(" ") + mvt.string(MVTime::TIME_CLEAN_NO_HM, 7)+"s";
348 else if (x < 3599.95)
349 return String(" ") + mvt.string(MVTime::TIME_CLEAN_NO_H,7)+" ";
350 else {
351 ostringstream oss;
352 oss << setw(2) << std::right << setprecision(1) << mvt.hour();
353 oss << ":" << mvt.string(MVTime::TIME_CLEAN_NO_H,7) << " ";
354 return String(oss);
355 }
356};
357
358std::string Scantable::formatDirection(const MDirection& md) const
359{
360 Vector<Double> t = md.getAngle(Unit(String("rad"))).getValue();
361 Int prec = 7;
362
363 MVAngle mvLon(t[0]);
364 String sLon = mvLon.string(MVAngle::TIME,prec);
365 MVAngle mvLat(t[1]);
366 String sLat = mvLat.string(MVAngle::ANGLE+MVAngle::DIG2,prec);
367 return sLon + String(" ") + sLat;
368}
369
370
371std::string Scantable::getFluxUnit() const
372{
373 return table_.keywordSet().asString("FluxUnit");
374}
375
376void Scantable::setFluxUnit(const std::string& unit)
377{
378 String tmp(unit);
379 Unit tU(tmp);
380 if (tU==Unit("K") || tU==Unit("Jy")) {
381 table_.rwKeywordSet().define(String("FluxUnit"), tmp);
382 } else {
383 throw AipsError("Illegal unit - must be compatible with Jy or K");
384 }
385}
386
387void Scantable::setInstrument(const std::string& name)
388{
389 bool throwIt = true;
390 Instrument ins = STAttr::convertInstrument(name, throwIt);
391 String nameU(name);
392 nameU.upcase();
393 table_.rwKeywordSet().define(String("AntennaName"), nameU);
394}
395
396MPosition Scantable::getAntennaPosition () const
397{
398 Vector<Double> antpos;
399 table_.keywordSet().get("AntennaPosition", antpos);
400 MVPosition mvpos(antpos(0),antpos(1),antpos(2));
401 return MPosition(mvpos);
402}
403
404void Scantable::makePersistent(const std::string& filename)
405{
406 String inname(filename);
407 Path path(inname);
408 inname = path.expandedName();
409 table_.deepCopy(inname, Table::New);
410}
411
412int Scantable::nbeam( int scanno ) const
413{
414 if ( scanno < 0 ) {
415 Int n;
416 table_.keywordSet().get("nBeam",n);
417 return int(n);
418 } else {
419 // take the first POLNO,IFNO,CYCLENO as nbeam shouldn't vary with these
420 Table t = table_(table_.col("SCANNO") == scanno);
421 ROTableRow row(t);
422 const TableRecord& rec = row.get(0);
423 Table subt = t( t.col("IFNO") == Int(rec.asuInt("IFNO"))
424 && t.col("POLNO") == Int(rec.asuInt("POLNO"))
425 && t.col("CYCLENO") == Int(rec.asuInt("CYCLENO")) );
426 ROTableVector<uInt> v(subt, "BEAMNO");
427 return int(v.nelements());
428 }
429 return 0;
430}
431
432int Scantable::nif( int scanno ) const
433{
434 if ( scanno < 0 ) {
435 Int n;
436 table_.keywordSet().get("nIF",n);
437 return int(n);
438 } else {
439 // take the first POLNO,BEAMNO,CYCLENO as nbeam shouldn't vary with these
440 Table t = table_(table_.col("SCANNO") == scanno);
441 ROTableRow row(t);
442 const TableRecord& rec = row.get(0);
443 Table subt = t( t.col("BEAMNO") == Int(rec.asuInt("BEAMNO"))
444 && t.col("POLNO") == Int(rec.asuInt("POLNO"))
445 && t.col("CYCLENO") == Int(rec.asuInt("CYCLENO")) );
446 if ( subt.nrow() == 0 ) return 0;
447 ROTableVector<uInt> v(subt, "IFNO");
448 return int(v.nelements());
449 }
450 return 0;
451}
452
453int Scantable::npol( int scanno ) const
454{
455 if ( scanno < 0 ) {
456 Int n;
457 table_.keywordSet().get("nPol",n);
458 return n;
459 } else {
460 // take the first POLNO,IFNO,CYCLENO as nbeam shouldn't vary with these
461 Table t = table_(table_.col("SCANNO") == scanno);
462 ROTableRow row(t);
463 const TableRecord& rec = row.get(0);
464 Table subt = t( t.col("BEAMNO") == Int(rec.asuInt("BEAMNO"))
465 && t.col("IFNO") == Int(rec.asuInt("IFNO"))
466 && t.col("CYCLENO") == Int(rec.asuInt("CYCLENO")) );
467 if ( subt.nrow() == 0 ) return 0;
468 ROTableVector<uInt> v(subt, "POLNO");
469 return int(v.nelements());
470 }
471 return 0;
472}
473
474int Scantable::ncycle( int scanno ) const
475{
476 if ( scanno < 0 ) {
477 Block<String> cols(2);
478 cols[0] = "SCANNO";
479 cols[1] = "CYCLENO";
480 TableIterator it(table_, cols);
481 int n = 0;
482 while ( !it.pastEnd() ) {
483 ++n;
484 }
485 return n;
486 } else {
487 Table t = table_(table_.col("SCANNO") == scanno);
488 ROTableRow row(t);
489 const TableRecord& rec = row.get(0);
490 Table subt = t( t.col("BEAMNO") == Int(rec.asuInt("BEAMNO"))
491 && t.col("POLNO") == Int(rec.asuInt("POLNO"))
492 && t.col("IFNO") == Int(rec.asuInt("IFNO")) );
493 if ( subt.nrow() == 0 ) return 0;
494 return int(subt.nrow());
495 }
496 return 0;
497}
498
499
500int Scantable::nrow( int scanno ) const
501{
502 return int(table_.nrow());
503}
504
505int Scantable::nchan( int ifno ) const
506{
507 if ( ifno < 0 ) {
508 Int n;
509 table_.keywordSet().get("nChan",n);
510 return int(n);
511 } else {
512 // take the first SCANNO,POLNO,BEAMNO,CYCLENO as nbeam shouldn't vary with these
513 Table t = table_(table_.col("IFNO") == ifno);
514 if ( t.nrow() == 0 ) return 0;
515 ROArrayColumn<Float> v(t, "SPECTRA");
516 return v(0).nelements();
517 }
518 return 0;
519}
520
521
522int Scantable::getBeam(int whichrow) const
523{
524 return beamCol_(whichrow);
525}
526
527int Scantable::getIF(int whichrow) const
528{
529 return ifCol_(whichrow);
530}
531
532int Scantable::getPol(int whichrow) const
533{
534 return polCol_(whichrow);
535}
536
537std::string Scantable::formatTime(const MEpoch& me, bool showdate) const
538{
539 MVTime mvt(me.getValue());
540 if (showdate)
541 mvt.setFormat(MVTime::YMD);
542 else
543 mvt.setFormat(MVTime::TIME);
544 ostringstream oss;
545 oss << mvt;
546 return String(oss);
547}
548
549void Scantable::calculateAZEL()
550{
551 MPosition mp = getAntennaPosition();
552 MEpoch::ROScalarColumn timeCol(table_, "TIME");
553 ostringstream oss;
554 oss << "Computed azimuth/elevation using " << endl
555 << mp << endl;
556 for (uInt i=0; i<nrow(); ++i) {
557 MEpoch me = timeCol(i);
558 MDirection md = dirCol_(i);
559 dirCol_.get(i,md);
560 oss << " Time: " << formatTime(me,False) << " Direction: " << formatDirection(md)
561 << endl << " => ";
562 MeasFrame frame(mp, me);
563 Vector<Double> azel =
564 MDirection::Convert(md, MDirection::Ref(MDirection::AZEL,
565 frame)
566 )().getAngle("rad").getValue();
567 azCol_.put(i,azel[0]);
568 elCol_.put(i,azel[1]);
569 oss << "azel: " << azel[0]/C::pi*180.0 << " "
570 << azel[1]/C::pi*180.0 << " (deg)" << endl;
571 }
572 pushLog(String(oss));
573}
574
575void Scantable::flag()
576{
577 if ( selector_.empty() )
578 throw(AipsError("Trying to flag whole scantable. Aborted."));
579 TableVector<uChar> tvec(table_, "FLAGTRA");
580 uChar userflag = 1 << 7;
581 tvec = userflag;
582}
583
584std::vector<bool> Scantable::getMask(int whichrow) const
585{
586 Vector<uChar> flags;
587 flagsCol_.get(uInt(whichrow), flags);
588 Vector<Bool> bflag(flags.shape());
589 convertArray(bflag, flags);
590 bflag = !bflag;
591 std::vector<bool> mask;
592 bflag.tovector(mask);
593 return mask;
594}
595
596std::vector<float> Scantable::getSpectrum( int whichrow,
597 const std::string& poltype) const
598{
599 std::vector<float> out;
600 Vector<Float> arr;
601 uInt requestedpol = polCol_(whichrow);
602 String basetype = getPolType();
603 if ( String(poltype) == basetype) {
604 specCol_.get(whichrow, arr);
605 } else {
606 STPol* stpol = 0;
607 stpol =STPol::getPolClass(Scantable::factories_, basetype);
608 try {
609 uInt row = uInt(whichrow);
610 stpol->setSpectra(getPolMatrix(row));
611 Float frot,fang,ftan;
612 focusTable_.getEntry(frot, fang, ftan, row);
613 stpol->setPhaseCorrections(frot, fang, ftan);
614 arr = stpol->getSpectrum(requestedpol, poltype);
615 delete stpol;
616 } catch (AipsError& e) {
617 delete stpol;
618 throw(e);
619 }
620 }
621 arr.tovector(out);
622 return out;
623}
624
625void asap::Scantable::setSpectrum( const std::vector<float>& spec,
626 int whichrow )
627{
628 Vector<Float> spectrum(spec);
629 Vector<Float> arr;
630 specCol_.get(whichrow, arr);
631 if ( spectrum.nelements() != arr.nelements() )
632 throw AipsError("The spectrum has incorrect number of channels.");
633 specCol_.put(whichrow, spectrum);
634}
635
636
637String Scantable::generateName()
638{
639 return (File::newUniqueName("./","temp")).baseName();
640}
641
642const casa::Table& Scantable::table( ) const
643{
644 return table_;
645}
646
647casa::Table& Scantable::table( )
648{
649 return table_;
650}
651
652std::string Scantable::getPolType() const
653{
654 return table_.keywordSet().asString("POLTYPE");
655}
656
657
658std::string Scantable::getPolarizationLabel(bool linear, bool stokes,
659 bool linpol, int polidx) const
660{
661 uInt idx = 0;
662 if (polidx >=0) idx = polidx;
663 return "";
664 //return SDPolUtil::polarizationLabel(idx, linear, stokes, linpol);
665}
666
667void Scantable::unsetSelection()
668{
669 table_ = originalTable_;
670 attach();
671 selector_.reset();
672}
673
674void Scantable::setSelection( const STSelector& selection )
675{
676 Table tab = const_cast<STSelector&>(selection).apply(originalTable_);
677 if ( tab.nrow() == 0 ) {
678 throw(AipsError("Selection contains no data. Not applying it."));
679 }
680 table_ = tab;
681 attach();
682 selector_ = selection;
683}
684
685std::string Scantable::summary( bool verbose )
686{
687 // Format header info
688 ostringstream oss;
689 oss << endl;
690 oss << asap::SEPERATOR << endl;
691 oss << " Scan Table Summary" << endl;
692 oss << asap::SEPERATOR << endl;
693 oss.flags(std::ios_base::left);
694 oss << setw(15) << "Beams:" << setw(4) << nbeam() << endl
695 << setw(15) << "IFs:" << setw(4) << nif() << endl
696 << setw(15) << "Polarisations:" << setw(4) << npol()
697 << "(" << getPolType() << ")" << endl
698 << setw(15) << "Channels:" << setw(4) << nchan() << endl;
699 oss << endl;
700 String tmp;
701 oss << setw(15) << "Observer:"
702 << table_.keywordSet().asString("Observer") << endl;
703 oss << setw(15) << "Obs Date:" << getTime(-1,true) << endl;
704 table_.keywordSet().get("Project", tmp);
705 oss << setw(15) << "Project:" << tmp << endl;
706 table_.keywordSet().get("Obstype", tmp);
707 oss << setw(15) << "Obs. Type:" << tmp << endl;
708 table_.keywordSet().get("AntennaName", tmp);
709 oss << setw(15) << "Antenna Name:" << tmp << endl;
710 table_.keywordSet().get("FluxUnit", tmp);
711 oss << setw(15) << "Flux Unit:" << tmp << endl;
712 Vector<Float> vec;
713 oss << setw(15) << "Rest Freqs:";
714 if (vec.nelements() > 0) {
715 oss << setprecision(10) << vec << " [Hz]" << endl;
716 } else {
717 oss << "none" << endl;
718 }
719 oss << setw(15) << "Abcissa:" << "channel" << endl;
720 oss << selector_.print() << endl;
721 oss << endl;
722 // main table
723 String dirtype = "Position ("
724 + MDirection::showType(dirCol_.getMeasRef().getType())
725 + ")";
726 oss << setw(5) << "Scan"
727 << setw(15) << "Source"
728// << setw(24) << dirtype
729 << setw(10) << "Time"
730 << setw(18) << "Integration" << endl
731 << setw(5) << "" << setw(10) << "Beam" << dirtype << endl
732 << setw(15) << "" << setw(5) << "IF"
733 << setw(8) << "Frame" << setw(16)
734 << "RefVal" << setw(10) << "RefPix" << setw(12) << "Increment" <<endl;
735 oss << asap::SEPERATOR << endl;
736 TableIterator iter(table_, "SCANNO");
737 while (!iter.pastEnd()) {
738 Table subt = iter.table();
739 ROTableRow row(subt);
740 MEpoch::ROScalarColumn timeCol(subt,"TIME");
741 const TableRecord& rec = row.get(0);
742 oss << setw(4) << std::right << rec.asuInt("SCANNO")
743 << std::left << setw(1) << ""
744 << setw(15) << rec.asString("SRCNAME")
745 << setw(10) << formatTime(timeCol(0), false);
746 // count the cycles in the scan
747 TableIterator cyciter(subt, "CYCLENO");
748 int nint = 0;
749 while (!cyciter.pastEnd()) {
750 ++nint;
751 ++cyciter;
752 }
753 oss << setw(3) << std::right << nint << setw(3) << " x " << std::left
754 << setw(6) << formatSec(rec.asFloat("INTERVAL")) << endl;
755
756 TableIterator biter(subt, "BEAMNO");
757 while (!biter.pastEnd()) {
758 Table bsubt = biter.table();
759 ROTableRow brow(bsubt);
760 MDirection::ROScalarColumn bdirCol(bsubt,"DIRECTION");
761 const TableRecord& brec = brow.get(0);
762 oss << setw(6) << "" << setw(10) << brec.asuInt("BEAMNO");
763 oss << setw(24) << formatDirection(bdirCol(0)) << endl;
764 TableIterator iiter(bsubt, "IFNO");
765 while (!iiter.pastEnd()) {
766 Table isubt = iiter.table();
767 ROTableRow irow(isubt);
768 const TableRecord& irec = irow.get(0);
769 oss << std::right <<setw(8) << "" << std::left << irec.asuInt("IFNO");
770 oss << frequencies().print(irec.asuInt("FREQ_ID"));
771
772 ++iiter;
773 }
774 ++biter;
775 }
776 ++iter;
777 }
778 /// @todo implement verbose mode
779 return String(oss);
780}
781
782std::string Scantable::getTime(int whichrow, bool showdate) const
783{
784 MEpoch::ROScalarColumn timeCol(table_, "TIME");
785 MEpoch me;
786 if (whichrow > -1) {
787 me = timeCol(uInt(whichrow));
788 } else {
789 Double tm;
790 table_.keywordSet().get("UTC",tm);
791 me = MEpoch(MVEpoch(tm));
792 }
793 return formatTime(me, showdate);
794}
795
796std::vector< double > asap::Scantable::getAbcissa( int whichrow ) const
797{
798 if ( whichrow > table_.nrow() ) throw(AipsError("Illegal ro number"));
799 std::vector<double> stlout;
800 int nchan = specCol_(whichrow).nelements();
801 String us = freqTable_.getUnitString();
802 if ( us == "" || us == "pixel" || us == "channel" ) {
803 for (int i=0; i<nchan; ++i) {
804 stlout.push_back(double(i));
805 }
806 return stlout;
807 }
808
809 const MPosition& mp = getAntennaPosition();
810 const MDirection& md = dirCol_(whichrow);
811 const MEpoch& me = timeCol_(whichrow);
812 Double rf = moleculeTable_.getRestFrequency(mmolidCol_(whichrow));
813 SpectralCoordinate spc =
814 freqTable_.getSpectralCoordinate(md, mp, me, rf, mfreqidCol_(whichrow));
815 Vector<Double> pixel(nchan);
816 Vector<Double> world;
817 indgen(pixel);
818 if ( Unit(us) == Unit("Hz") ) {
819 for ( int i=0; i < nchan; ++i) {
820 Double world;
821 spc.toWorld(world, pixel[i]);
822 stlout.push_back(double(world));
823 }
824 } else if ( Unit(us) == Unit("km/s") ) {
825 Vector<Double> world;
826 spc.pixelToVelocity(world, pixel);
827 world.tovector(stlout);
828 }
829 return stlout;
830}
831
832std::string Scantable::getAbcissaLabel( int whichrow ) const
833{
834 if ( whichrow > table_.nrow() ) throw(AipsError("Illegal ro number"));
835 const MPosition& mp = getAntennaPosition();
836 const MDirection& md = dirCol_(whichrow);
837 const MEpoch& me = timeCol_(whichrow);
838 const Double& rf = mmolidCol_(whichrow);
839 SpectralCoordinate spc =
840 freqTable_.getSpectralCoordinate(md, mp, me, rf, mfreqidCol_(whichrow));
841
842 String s = "Channel";
843 Unit u = Unit(freqTable_.getUnitString());
844 if (u == Unit("km/s")) {
845 s = CoordinateUtil::axisLabel(spc,0,True,True,True);
846 } else if (u == Unit("Hz")) {
847 Vector<String> wau(1);wau = u.getName();
848 spc.setWorldAxisUnits(wau);
849
850 s = CoordinateUtil::axisLabel(spc,0,True,True,False);
851 }
852 return s;
853
854}
855
856void asap::Scantable::setRestFrequencies( double rf, const std::string& unit )
857{
858 ///@todo lookup in line table
859 Unit u(unit);
860 Quantum<Double> urf(rf, u);
861 uInt id = moleculeTable_.addEntry(urf.getValue("Hz"), "", "");
862 TableVector<uInt> tabvec(table_, "MOLECULE_ID");
863 tabvec = id;
864}
865
866void asap::Scantable::setRestFrequencies( const std::string& name )
867{
868 throw(AipsError("setRestFrequencies( const std::string& name ) NYI"));
869 ///@todo implement
870}
871
872std::vector< unsigned int > asap::Scantable::rownumbers( ) const
873{
874 std::vector<unsigned int> stlout;
875 Vector<uInt> vec = table_.rowNumbers();
876 vec.tovector(stlout);
877 return stlout;
878}
879
880
881Matrix<Float> asap::Scantable::getPolMatrix( uInt whichrow ) const
882{
883 ROTableRow row(table_);
884 const TableRecord& rec = row.get(whichrow);
885 Table t =
886 originalTable_( originalTable_.col("SCANNO") == Int(rec.asuInt("SCANNO"))
887 && originalTable_.col("BEAMNO") == Int(rec.asuInt("BEAMNO"))
888 && originalTable_.col("IFNO") == Int(rec.asuInt("IFNO"))
889 && originalTable_.col("CYCLENO") == Int(rec.asuInt("CYCLENO")) );
890 ROArrayColumn<Float> speccol(t, "SPECTRA");
891 return speccol.getColumn();
892}
893
894
895}//namespace asap
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