casa6

//# MultiTermMatrixCleaner.h: Minor Cycle for MSMFS deconvolution

//# Copyright (C) 1996,1997,1998,1999,2000,2001,2002,2003

//# 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

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//#

//# $Id: MultiTermMatrixCleaner Urvashi R.V.  2010-12-04 <rurvashi@aoc.nrao.edu$

​

#ifndef SYNTHESIS_MULTITERMLATTICECLEANER_H

#define SYNTHESIS_MULTITERMLATTICECLEANER_H

​

#include <scimath/Mathematics/FFTServer.h>

#include <synthesis/MeasurementEquations/MatrixCleaner.h>

​

namespace casa { //# NAMESPACE CASA - BEGIN

​

class MultiTermMatrixCleaner : public MatrixCleaner

{

public:

  // Create a cleaner 

  MultiTermMatrixCleaner();

​

  // The copy constructor uses reference semantics

  //  MultiTermMatrixCleaner(const MultiTermMatrixCleaner & other);

​

  // The assignment operator also uses reference semantics

  //  MultiTermMatrixCleaner & operator=(const MultiTermMatrixCleaner & other); 

​

  // The destructor resizes arrays to empty before destruction.

  ~MultiTermMatrixCleaner();

​

  // casacore::Input : number of Taylor terms

  //         Reshapes PtrBlocks to hold the correct number of PSFs and Residual images

  casacore::Bool setntaylorterms(const int & nterms);

  // casacore::Input : scales

  casacore::Bool setscales(const casacore::Vector<casacore::Float> & scales);

​

  // Initialize all the memory being used.

  casacore::Bool initialise(casacore::Int nx,casacore::Int ny);

​

  // Calculate Hessian elements and check for invertibility

  // Does not have to be called externally, but can be. Either way, it executes only once.

  casacore::Int computeHessianPeak();