casa6

//# VisImagingWeight.cc: imaging weight calculation for a give buffer

//# Copyright (C) 2009-2018

//# 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 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  General Public

//# License for more details.

//#

//# You should have received a copy of the GNU 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 adressed 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

//#

//#

//# $Id$

#include <msvis/MSVis/VisibilityIterator.h>

#include <msvis/MSVis/VisBuffer.h>

#include <msvis/MSVis/VisBuffer2.h>

#include <msvis/MSVis/VisImagingWeight.h>

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

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

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

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

#include <casacore/lattices/Lattices/TempLattice.h>

#include <casacore/images/Images/ImageInterface.h>

#include <casacore/coordinates/Coordinates/DirectionCoordinate.h>

​

​

using namespace casacore;

namespace casa { //# NAMESPACE CASA - BEGIN

​

​

  VisImagingWeight::VisImagingWeight() : wgtType_p("none"), doFilter_p(false), robust_p(0.0), rmode_p("norm"), noise_p(Quantity(0.0, "Jy")) , activeFieldIndex_p(-1){

​

    }

​

  VisImagingWeight::VisImagingWeight(const String& type) : doFilter_p(false),  robust_p(0.0), rmode_p("norm"), noise_p(Quantity(0.0, "Jy")) , activeFieldIndex_p(-1){

​

        wgtType_p=type;

        wgtType_p.downcase();

        if (wgtType_p != "natural" && wgtType_p != "radial"){

​

            throw(AipsError("Programmer error...wrong constructor used"));

        }

    }

​

​

  VisImagingWeight::VisImagingWeight(ROVisibilityIterator& vi, const String& rmode, const Quantity& noise,

                                     const Double robust, const Int nx, const Int ny,