EVLAAperture.h

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// -*- C++ -*-
//# EVLAAperture.h: Definition of the EVLAAperture class
//# Copyright (C) 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:
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//#        Postal address: AIPS++ Project Office
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//# $Id$
//
#ifndef SYNTHESIS_EVLAAPERTURE_H
#define SYNTHESIS_EVLAAPERTURE_H

#include <images/Images/ImageInterface.h>
//#include <synthesis/MeasurementComponents/ATerm.h>
#include <synthesis/TransformMachines/AzElAperture.h>
#include <coordinates/Coordinates/CoordinateSystem.h>
//
//---------------------------------------------------------------------
//
namespace casacore{

  template<class T> class ImageInterface;
  template<class T> class Matrix;
}

namespace casa { //# NAMESPACE CASA - BEGIN
  class VisBuffer;
  //  class EVLAAperture : public ATerm
  class EVLAAperture : public AzElAperture
  {
  public:
    //    EVLAAperture(): ATerm(), polMap_p(), feedStokes_p() {};
    EVLAAperture(): AzElAperture(), polMap_p(), feedStokes_p() {};
    ~EVLAAperture() {};
    EVLAAperture& operator=(const EVLAAperture& other);
    //
    // Overload these functions.  They are pure virtual in the base class (ATerm).
    //
    virtual casacore::String name() {return casacore::String("EVLA Aperture");};

    virtual void makeFullJones(casacore::ImageInterface<casacore::Complex>& pbImage,
                               const VisBuffer& vb,
                               casacore::Bool doSquint, casacore::Int& bandID, casacore::Double freqVal);

    virtual void applySky(casacore::ImageInterface<casacore::Float>& outputImages,
                          const VisBuffer& vb, 
                          const casacore::Bool doSquint=true,
                          const casacore::Int& cfKey=0,
                          const casacore::Int& muellerTerm=0,
                          const casacore::Double freqVal=-1.0);
    virtual void applySky(casacore::ImageInterface<casacore::Complex>& outputImages,
                          const VisBuffer& vb, 
                          const casacore::Bool doSquint=true,
                          const casacore::Int& cfKey=0,
                          const casacore::Int& muellerTerm=0,
                          const casacore::Double freqVal=-1.0);
    virtual void applySky(casacore::ImageInterface<casacore::Complex>& outImages,
                          const casacore::Double& pa,
                          const casacore::Bool doSquint,
                          const casacore::Int& cfKey,
                          const casacore::Int& muellerTerm,
                          const casacore::Double freqVal=-1.0);

    void cacheVBInfo(const casacore::String& telescopeName, const casacore::Float& diameter);
    void cacheVBInfo(const VisBuffer& vb);
    casacore::Int getBandID(const casacore::Double& freq, const casacore::String& telescopeName,
                            const casacore::String& bandName);

    virtual casacore::Vector<casacore::Int> vbRow2CFKeyMap(const VisBuffer& vb, casacore::Int& nUnique)
    {casacore::Vector<casacore::Int> tmp; tmp.resize(vb.nRow()); tmp=0; nUnique=1; return tmp;}

    virtual void getPolMap(casacore::Vector<casacore::Int>& polMap) {polMap.resize(0);polMap=polMap_p;};

    // For this class, these will be served from the base classs (ATerm.h)
    // virtual casacore::Int getConvSize() {return CONVSIZE;};
    // virtual casacore::Int getOversampling() {return OVERSAMPLING;}
    // virtual casacore::Float getConvWeightSizeFactor() {return CONVWTSIZEFACTOR;};
    // virtual casacore::Float getSupportThreshold() {return THRESHOLD;};

  protected:
    int getVisParams(const VisBuffer& vb,const casacore::CoordinateSystem& skyCoord=casacore::CoordinateSystem());
    casacore::Bool findSupport(casacore::Array<casacore::Complex>& func, casacore::Float& threshold,casacore::Int& origin, casacore::Int& R);
    casacore::Int getVLABandID(casacore::Double& freq,casacore::String&telescopeName, const casacore::CoordinateSystem& skyCoord=casacore::CoordinateSystem());
    casacore::Int makePBPolnCoords(const VisBuffer&vb,
                         const casacore::Int& convSize,
                         const casacore::Int& convSampling,
                         const casacore::CoordinateSystem& skyCoord,
                         const casacore::Int& skyNx, const casacore::Int& skyNy,
                         casacore::CoordinateSystem& feedCoord);

  private:
    casacore::Vector<casacore::Int> polMap_p;
    casacore::Vector<casacore::Int> feedStokes_p;
  };
};
#endif