LCOV - code coverage report
Current view: top level - msvis/MSVis - VisBuffGroupAcc.cc (source / functions) Hit Total Coverage
Test: casacpp_coverage.info Lines: 0 139 0.0 %
Date: 2024-10-10 19:51:30 Functions: 0 14 0.0 %

          Line data    Source code
       1             : //# VisBuffGroupAcc.cc: Implementation of VisBuffGroupAcc.h
       2             : //# Copyright (C) 2008
       3             : //# Associated Universities, Inc. Washington DC, USA.
       4             : //#
       5             : //# This library is free software; you can redistribute it and/or modify it
       6             : //# under the terms of the GNU Library General Public License as published by
       7             : //# the Free Software Foundation; either version 2 of the License, or (at your
       8             : //# option) any later version.
       9             : //#
      10             : //# This library is distributed in the hope that it will be useful, but WITHOUT
      11             : //# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
      12             : //# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
      13             : //# License for more details.
      14             : //#
      15             : //# You should have received a copy of the GNU Library General Public License
      16             : //# along with this library; if not, write to the Free Software Foundation,
      17             : //# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA.
      18             : //#
      19             : //# Correspondence concerning AIPS++ should be addressed as follows:
      20             : //#        Internet email: casa-feedback@nrao.edu.
      21             : //#        Postal address: AIPS++ Project Office
      22             : //#                        National Radio Astronomy Observatory
      23             : //#                        520 Edgemont Road
      24             : //#                        Charlottesville, VA 22903-2475 USA
      25             : //#
      26             : //# $Id: VisBuffAccumulator.cc,v 19.7 2006/01/17 08:22:27 gvandiep Exp $
      27             : //----------------------------------------------------------------------------
      28             : 
      29             : #include <msvis/MSVis/VisBuffGroupAcc.h>
      30             : #include <casacore/ms/MeasurementSets/MSColumns.h>
      31             : #include <casacore/ms/MSSel/MSSelection.h>
      32             : #include <casacore/casa/Exceptions/Error.h>
      33             : 
      34             : using namespace casacore;
      35             : namespace casa { //# NAMESPACE CASA - BEGIN
      36             : 
      37             : //----------------------------------------------------------------------------
      38             :   
      39           0 : VisBuffGroupAcc::VisBuffGroupAcc(const Int& nAnt, 
      40             :                                  const Int& nSpw,
      41             :                                  const Int& nFld,
      42             :                                  const Double& subinterval,
      43           0 :                                  const Bool fillModel)
      44           0 :   : nAnt_p(nAnt), 
      45           0 :     nSpw_p(nSpw),
      46           0 :     nFld_p(nFld),
      47           0 :     nBuf_p(0),
      48           0 :     subinterval_p(subinterval),
      49           0 :     fillModel_p(fillModel),
      50           0 :     prenorm_p(false),
      51           0 :     globalTimeStamp_p(0.0),
      52           0 :     VBA_p(),
      53           0 :     spwfldids_p(nSpw,nFld,-1),
      54           0 :     tvi_debug(False)
      55             : {
      56             :   // Interval MUST be strictly greater than zero
      57           0 :   if (subinterval_p < DBL_EPSILON)
      58           0 :     subinterval_p=0.1;   // TBD: is this reasonable? 
      59             : 
      60             :   // NB: Enforcing no prenormalization here, for now
      61             : 
      62           0 : }
      63             : 
      64             : //----------------------------------------------------------------------------
      65             : 
      66           0 : VisBuffGroupAcc::~VisBuffGroupAcc()
      67             : {
      68             : // Null default destructor
      69             : //
      70             : 
      71             :   // Delete all VBAs.
      72             :   // TBD: encapsulate this for more general use?
      73           0 :   for (Int i=0;i<nBuf_p;++i)
      74           0 :     if (VBA_p[i]) delete VBA_p[i];
      75             : 
      76           0 :   VBA_p.resize(0);
      77           0 : }
      78             : 
      79           0 : void VisBuffGroupAcc::clearChanMask(std::map<Int, Vector<Bool>*>& chanmask)
      80             : {
      81           0 :   for(std::map<Int, Vector<Bool>*>::iterator it = chanmask.begin();
      82           0 :       it != chanmask.end(); ++it)
      83           0 :     if(it->second)
      84           0 :       delete it->second;
      85           0 :   chanmask.clear();
      86           0 : }
      87             : 
      88           0 : Bool VisBuffGroupAcc::fillChanMask(std::map<Int, Vector<Bool>*>& chanmask,
      89             :                                    const String& spwstr,
      90             :                                    const MeasurementSet& ms)
      91             : {
      92           0 :   clearChanMask(chanmask);
      93             : 
      94           0 :   MSSelection mssel;
      95           0 :   mssel.setSpwExpr(spwstr != "" ? spwstr : "*");
      96           0 :   Matrix<Int> chansel = mssel.getChanList(&ms, 1);
      97           0 :   uInt nranges = chansel.nrow();
      98           0 :   Bool didSel = nranges > 0;
      99             : 
     100           0 :   if(didSel){
     101           0 :     MSSpWindowColumns spwCols(ms.spectralWindow());
     102           0 :     Vector<Int> nChan0 = spwCols.numChan().getColumn();
     103             : 
     104           0 :     Vector<Int> uspw(chansel.column(0));
     105           0 :     Vector<Int> ustart(chansel.column(1));
     106           0 :     Vector<Int> uend(chansel.column(2));
     107           0 :     Vector<Int> ustep(chansel.column(3));
     108             : 
     109           0 :     for(uInt rangenum = 0; rangenum < nranges; ++rangenum){
     110           0 :       Int spw = uspw[rangenum];
     111             : 
     112             :       // Initialize this spw mask, if necessary (def = masked)
     113           0 :       if(chanmask.count(spw) < 1)
     114           0 :         chanmask[spw] = new Vector<Bool>(nChan0[spw], true);
     115             : 
     116           0 :       Int unchan = uend[rangenum] - ustart[rangenum] + 1;
     117             :       
     118             :       // Update the mask (false = selected)
     119           0 :       (*chanmask[spw])(Slice(ustart[rangenum], unchan, ustep[rangenum])) = false;
     120             :     } // rangenum
     121           0 :   } // non-triv spw selection
     122           0 :   return didSel;
     123           0 : }
     124             : 
     125           0 : uInt VisBuffGroupAcc::applyChanMask(std::map<Int, Vector<Bool>*>& chanmask)
     126             : {
     127           0 :   uInt naffected = 0;
     128             : 
     129           0 :   for(Int i = 0; i < nBuf_p; ++i){
     130           0 :     Int spw = VBA_p[i]->aveCalVisBuff().spectralWindow();
     131           0 :     if(chanmask.count(spw) > 0){
     132           0 :       Int chan0 = VBA_p[i]->aveCalVisBuff().channel()(0);
     133           0 :       Int nchan = VBA_p[i]->aveCalVisBuff().nChannel();
     134           0 :       if(sum((*(chanmask[spw]))(Slice(chan0, nchan))) > 0){
     135             :         // There are some channels to mask...
     136           0 :         Vector<Bool> fr(VBA_p[i]->aveCalVisBuff().flagRow());
     137           0 :         Matrix<Bool> f(VBA_p[i]->aveCalVisBuff().flag());
     138           0 :         Vector<Bool> fc;
     139           0 :         Vector<Bool> chm((*(chanmask[spw]))(Slice(chan0, nchan)));
     140           0 :         uInt nr = VBA_p[i]->aveCalVisBuff().nRow();
     141             : 
     142           0 :         for(uInt irow = 0; irow < nr; ++irow){
     143           0 :           if(!fr(irow)){
     144           0 :             fc.reference(f.column(irow));
     145           0 :             fc = fc || chm;
     146             :           }
     147             :         }
     148           0 :         ++naffected;
     149           0 :       }
     150             :     }
     151             :   }
     152           0 :   return naffected;
     153             : }
     154             : 
     155             : //----------------------------------------------------------------------------
     156             : 
     157           0 : void VisBuffGroupAcc::accumulate (const VisBuffer& vb)
     158             : {
     159           0 :   Int spw = vb.spectralWindow();
     160           0 :   Int fld = vb.fieldId();
     161           0 :   Int ibuf = spwfldids_p(spw, fld);
     162             : 
     163             :   // Create the new VisBuffAccumulator, if needed
     164           0 :   if (ibuf<0) {
     165           0 :     ibuf=nBuf_p;
     166           0 :     ++nBuf_p;
     167           0 :     VBA_p.resize(nBuf_p, false, true);
     168           0 :     spwfldids_p(spw, fld) = ibuf;
     169           0 :     VBA_p[ibuf] = new VisBuffAccumulator(nAnt_p, subinterval_p, prenorm_p, fillModel_p);
     170           0 :     VBA_p[ibuf]->setTVIDebug(tvi_debug);
     171             :   }
     172             : 
     173             :   // ibuf should be non-negative now
     174           0 :   if(ibuf < 0)
     175           0 :     throw(AipsError("VisBuffGroupAcc: VisBuffAccumulator index failure."));
     176             : 
     177             :   // Accumulate the vb into the correct accumulator
     178           0 :   VBA_p[ibuf]->accumulate(vb);
     179           0 : }
     180             : 
     181             : //----------------------------------------------------------------------------
     182             : 
     183           0 : void VisBuffGroupAcc::finalizeAverage()
     184             : {
     185           0 :   globalTimeStamp_p=0.0;
     186           0 :   Double globalTimeStampWt(0.0);
     187           0 :   Double t0(-1.0);  // avoid round-off problems in time average
     188             : 
     189           0 :   for (Int ibuf=0;ibuf<nBuf_p;++ibuf) {
     190             :     // tell a VBA to finalize itself
     191           0 :     VBA_p[ibuf]->finalizeAverage();
     192             : 
     193             :     // Accumulate weighted timestamps
     194           0 :     Double& thistimewt(VBA_p[ibuf]->timeStampWt());
     195           0 :     if (thistimewt>0.0) {
     196           0 :       globalTimeStampWt+=(thistimewt);
     197           0 :       Double& thistime(VBA_p[ibuf]->timeStamp());
     198           0 :       if (t0<0.0) 
     199           0 :         t0=thistime;
     200             :       else
     201           0 :         globalTimeStamp_p+=(thistimewt*(thistime-t0));
     202             :     }
     203             :   }
     204             : 
     205             :   // Form global timestamp
     206           0 :   if (globalTimeStampWt>0.0)
     207           0 :     globalTimeStamp_p/=globalTimeStampWt;
     208             : 
     209             :   // Add offset back in!
     210           0 :   globalTimeStamp_p+=t0;
     211             : 
     212             :   // NB: the per-VBA timestamp weights are approximately (exactly?)
     213             :   //  the relative weights of the _data_ going into the solution.
     214             :   //  This could be a useful log message?....
     215             : 
     216           0 : };
     217             :   
     218           0 : void VisBuffGroupAcc::enforceAPonData(const String& apmode)
     219             : {
     220             : 
     221             :   // Delegate to each CalVisBuffer in turn
     222           0 :   for (Int ibuf=0;ibuf<nBuf_p;++ibuf)
     223           0 :     if (VBA_p[ibuf])
     224           0 :       this->operator()(ibuf).enforceAPonData(apmode);
     225             : 
     226           0 : }
     227             : 
     228           0 : void VisBuffGroupAcc::enforceSolveCorrWeights(const Bool phandonly)
     229             : {
     230             : 
     231             :   // If requested set cross-hand weights to zero (if they exist):
     232           0 :   if(phandonly)
     233           0 :     for(Int ibuf = 0; ibuf < nBuf_p; ++ibuf)
     234           0 :       if (VBA_p[ibuf]) {
     235           0 :         CalVisBuffer& cvb(this->operator()(ibuf));
     236           0 :         if (cvb.nCorr() > 2)
     237           0 :           cvb.weightMat()(Slice(1, 2, 1), Slice()).set(0.0);
     238             :       }       
     239             : 
     240           0 : }
     241             : 
     242           0 : CalVisBuffer& VisBuffGroupAcc::operator()(const Int& buf) 
     243             : {
     244           0 :   if (buf > -1 && buf < nBuf_p)
     245           0 :     return VBA_p[buf]->aveCalVisBuff();
     246             :   else
     247           0 :     throw(AipsError("VisBuffGroupAcc: operator(buf) index out-of-range."));
     248             : }
     249             : 
     250           0 : CalVisBuffer& VisBuffGroupAcc::operator()(const Int& spw,const Int& fld) 
     251             : {
     252           0 :   if (spw>-1 && fld > -1 && spwfldids_p(spw,fld) > 0)
     253           0 :     return this->operator()(spwfldids_p(spw,fld));
     254             :   else
     255           0 :     throw(AipsError("VisBuffGroupAcc: operator(spw,fld) index out-of-range."));
     256             : }
     257             : 
     258           0 : const Vector<Int>& VisBuffGroupAcc::outToInRow(const Int buf,
     259             :                                                const Bool hurl) const
     260             : {
     261           0 :   if(buf > -1 && buf < nBuf_p)
     262           0 :     return VBA_p[buf]->outToInRow(hurl);
     263             :   else
     264           0 :     throw(AipsError("VisBuffGroupAcc outToInRow: buf index out of range."));
     265             : }
     266             : 
     267           0 : const Vector<Int>& VisBuffGroupAcc::outToInRow(const Int spw,
     268             :                                                const Int fld,
     269             :                                                const Bool hurl) const
     270             : {
     271           0 :   if(spw > -1 && fld > -1 && spwfldids_p(spw, fld) > 0)
     272           0 :     return outToInRow(spwfldids_p(spw, fld), hurl);
     273             :   else
     274           0 :     throw(AipsError(
     275           0 :         "VisBuffGroupAcc outToInRow: (spw, fld) index out of range."));
     276             : }
     277             : 
     278           0 : void VisBuffGroupAcc::reportData()
     279             : {
     280           0 :   cout << "nBuf=" << nBuf_p << endl;
     281           0 :   for(Int ibuf = 0; ibuf < nBuf_p; ++ibuf) {
     282           0 :     cout << "iBuf=" << ibuf << endl;
     283           0 :     if (VBA_p[ibuf]) VBA_p[ibuf]->reportData();
     284             :   }
     285             : 
     286           0 : }
     287             : 
     288             : } //# NAMESPACE CASA - END
     289             : 

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