| 1 | //
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| 2 | // C++ Implementation: STCalSkyPSAlma
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| 3 | //
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| 4 | // Description:
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| 5 | //
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| 6 | //
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| 7 | // Author: Takeshi Nakazato <takeshi.nakazato@nao.ac.jp> (C) 2012
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| 8 | //
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| 9 | // Copyright: See COPYING file that comes with this distribution
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| 10 | //
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| 11 | //
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| 12 |
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| 13 | #include <vector>
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| 14 | #include "STSelector.h"
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| 15 | #include "STCalSkyPSAlma.h"
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| 16 | #include "RowAccumulator.h"
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| 17 | #include "STIdxIter.h"
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| 18 | #include "STDefs.h"
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| 19 | #include <atnf/PKSIO/SrcType.h>
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| 20 |
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| 21 | using namespace std;
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| 22 | using namespace casa;
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| 23 |
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| 24 | namespace asap {
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| 25 | STCalSkyPSAlma::STCalSkyPSAlma(CountedPtr<Scantable> &s)
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| 26 | : STCalibration(s)
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| 27 | {
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| 28 | applytable_ = new STCalSkyTable(*s, "PSALMA");
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| 29 | }
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| 30 |
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| 31 | void STCalSkyPSAlma::setupSelector()
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| 32 | {
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| 33 | sel_.reset();
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| 34 | vector<int> types(1,SrcType::PSOFF);
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| 35 | sel_.setTypes(types);
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| 36 | }
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| 37 |
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| 38 | void STCalSkyPSAlma::fillCalTable()
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| 39 | {
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| 40 | RowAccumulator acc(W_TINT);
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| 41 |
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| 42 | vector<string> cols(3);
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| 43 | cols[0] = "IFNO";
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| 44 | cols[1] = "POLNO";
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| 45 | cols[2] = "BEAMNO";
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| 46 | STIdxIterAcc iter(scantable_, cols);
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| 47 |
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| 48 | ROScalarColumn<Double> *tcol = new ROScalarColumn<Double>(scantable_->table(), "TIME");
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| 49 | Vector<Double> timeSec = tcol->getColumn() * 86400.0;
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| 50 | tcol->attach(scantable_->table(), "INTERVAL");
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| 51 | Vector<Double> intervalSec = tcol->getColumn();
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| 52 | delete tcol;
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| 53 | ROScalarColumn<Float> *ecol = new ROScalarColumn<Float>(scantable_->table(), "ELEVATION");
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| 54 | Vector<Float> elevation = ecol->getColumn();
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| 55 | delete ecol;
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| 56 |
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| 57 | ROArrayColumn<Float> specCol(scantable_->table(), "SPECTRA");
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| 58 | ROArrayColumn<uChar> flagCol(scantable_->table(), "FLAGTRA");
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| 59 | ROScalarColumn<uInt> freqidCol(scantable_->table(), "FREQ_ID");
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| 60 |
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| 61 | // dummy Tsys: the following process doesn't need Tsys but RowAccumulator
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| 62 | // requires to set it with spectral data
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| 63 | Vector<Float> tsys(1, 1.0);
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| 64 |
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| 65 | Double timeCen = 0.0;
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| 66 | Float elCen = 0.0;
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| 67 | uInt count = 0;
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| 68 |
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| 69 | while(!iter.pastEnd()) {
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| 70 | Vector<uInt> rows = iter.getRows(SHARE);
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| 71 | Vector<uInt> current = iter.current();
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| 72 | uInt len = rows.nelements();
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| 73 | if (len == 0) {
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| 74 | iter.next();
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| 75 | continue;
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| 76 | }
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| 77 | else if (len == 1) {
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| 78 | STCalSkyTable *p = dynamic_cast<STCalSkyTable *>(&(*applytable_));
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| 79 | uInt irow = rows[0];
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| 80 | p->appenddata(0, 0, current[2], current[0], current[1],
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| 81 | freqidCol(irow), timeSec[irow], elevation[irow], specCol(irow));
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| 82 | iter.next();
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| 83 | continue;
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| 84 | }
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| 85 |
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| 86 | uInt nchan = scantable_->nchan(scantable_->getIF(rows[0]));
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| 87 | Vector<uChar> flag(nchan);
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| 88 | Vector<Bool> bflag(nchan);
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| 89 | Vector<Float> spec(nchan);
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| 90 |
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| 91 | Vector<Double> timeSep(len);
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| 92 | for (uInt i = 0; i < len-1; i++) {
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| 93 | timeSep[i] = timeSec[rows[i+1]] - timeSec[rows[i]] ;
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| 94 | }
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| 95 | Double tMedian = median(timeSep(IPosition(1,0), IPosition(1,len-2)));
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| 96 | timeSep[len-1] = tMedian * 10000.0 ; // any large value
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| 97 |
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| 98 | uInt irow ;
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| 99 | uInt jrow ;
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| 100 | for (uInt i = 0; i < len; i++) {
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| 101 | irow = rows[i];
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| 102 | jrow = (i < len-1) ? rows[i+1] : rows[i];
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| 103 | // accumulate data
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| 104 | flagCol.get(irow, flag);
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| 105 | convertArray(bflag, flag);
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| 106 | specCol.get(irow, spec);
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| 107 | if ( !allEQ(bflag,True) )
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| 108 | acc.add( spec, !bflag, tsys, intervalSec[irow], timeSec[irow] ) ;
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| 109 | timeCen += timeSec[irow];
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| 110 | elCen += elevation[irow];
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| 111 | count++;
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| 112 |
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| 113 | // check time gap
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| 114 | double gap = 2.0 * timeSep[i] / (intervalSec[jrow] + intervalSec[irow]);
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| 115 | if ( gap > 1.1 ) {
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| 116 | if ( acc.state() ) {
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| 117 | acc.replaceNaN() ;
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| 118 | // const Vector<Bool> &msk = acc.getMask();
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| 119 | // convertArray(flag, !msk);
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| 120 | // for (uInt k = 0; k < nchan; ++k) {
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| 121 | // uChar userFlag = 1 << 7;
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| 122 | // if (msk[k]==True) userFlag = 0 << 7;
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| 123 | // flag(k) = userFlag;
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| 124 | // }
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| 125 | timeCen /= (Double)count * 86400.0; // sec->day
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| 126 | elCen /= (Float)count;
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| 127 | STCalSkyTable *p = dynamic_cast<STCalSkyTable *>(&(*applytable_));
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| 128 | p->appenddata(0, 0, current[2], current[0], current[1],
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| 129 | freqidCol(irow), timeCen, elCen, acc.getSpectrum());
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| 130 | }
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| 131 | acc.reset() ;
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| 132 | timeCen = 0.0;
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| 133 | elCen = 0.0;
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| 134 | count = 0;
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| 135 | }
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| 136 | }
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| 137 |
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| 138 | iter.next() ;
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| 139 | }
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| 140 | }
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| 141 |
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| 142 | }
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