casa6

//# VisibilityIterator.cc: Step through MeasurementEquation by visibility

//# Copyright (C) 1996-2012

//# Associated Universities, Inc. Washington DC, USA.

//#

//# This library is free software; you can redistribute it and/or modify it

//# under the terms of the GNU Library General Public License as published by

//# the Free Software Foundation; either version 2 of the License, or (at your

//# option) any later version.

//#

//# This library is distributed in the hope that it will be useful, but WITHOUT

//# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

//# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public

//# License for more details.

//#

//# You should have received a copy of the GNU Library General Public License

//# along with this library; if not, write to the Free Software Foundation,

//# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA.

//#

//# Correspondence concerning AIPS++ should be addressed as follows:

//#        Internet email: aips2-request@nrao.edu.

//#        Postal address: AIPS++ Project Office

//#                        National Radio Astronomy Observatory

//#                        520 Edgemont Road

//#                        Charlottesville, VA 22903-2475 USA

//#

//# $Id: VisibilityIterator.cc,v 19.15 2006/02/01 01:25:14 kgolap Exp $

​

#include <stdcasa/UtilJ.h>

#include <msvis/MSVis/VisibilityIteratorImpl.h>

#include <msvis/MSVis/VisibilityIterator.h>

#include <msvis/MSVis/VisBuffer.h>

#include <msvis/MSVis/MSUtil.h>

////#include <synthesis/TransformMachines/VisModelData.h>

#include <casacore/scimath/Mathematics/InterpolateArray1D.h>

#include <casacore/ms/MeasurementSets/MSColumns.h>

#include <casacore/ms/MSSel/MSSpwIndex.h>

#include <casacore/tables/Tables/TableDesc.h>

#include <casacore/tables/Tables/ColDescSet.h>

#include <casacore/tables/Tables/TableRecord.h>

#include <casacore/tables/DataMan/TiledStManAccessor.h>

#include <casacore/tables/DataMan/StandardStManAccessor.h>

#include <casacore/tables/DataMan/IncrStManAccessor.h>

#include <casacore/casa/Arrays/ArrayLogical.h>

#include <casacore/casa/System/AipsrcValue.h>

#include <casacore/casa/BasicSL/Constants.h>

#include <casacore/casa/Quanta/MVTime.h>

#include <casacore/casa/Containers/Record.h>

#include <casacore/casa/Arrays/ArrayMath.h>

#include <casacore/casa/Arrays/MaskedArray.h>

#include <casacore/casa/Exceptions/Error.h>

#include <casacore/casa/Utilities/Assert.h>

#include <casacore/casa/Utilities/Sort.h>

#include <casacore/casa/OS/EnvVar.h>

​

#include <cassert>

#include <limits>

#include <memory>

​

using std::make_pair;

​

using namespace casacore;

namespace casa { //# NAMESPACE CASA - BEGIN

​

SubChunkPair

SubChunkPair::noMoreData ()

{

    Int maxInt = std::numeric_limits<Int>::max ();

    return SubChunkPair (maxInt, maxInt);

}

​

String

SubChunkPair::toString () const

{

    return String::format ("(%d,%d)", first, second);

}

​

VisibilityIteratorReadImpl::VisibilityIteratorReadImpl ()

: rovi_p (NULL),

  selRows_p (0, 0),

  tileCacheIsSet_p (0)

{}

​

VisibilityIteratorReadImpl::VisibilityIteratorReadImpl (ROVisibilityIterator * rovi,

                                                        const Block<MeasurementSet> &mss,

                                                        const Block<Int> & sortColumns,

                                                        const Bool addDefaultSort,

                                                        Double timeInterval)

: addDefaultSort_p (addDefaultSort),

  curChanGroup_p (0),

  floatDataFound_p (false),

  initialized_p (false),