PointingOffsets.h

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// -*- C++ -*-
//# PointingOffsets.h: Definition of the PointingOffsets 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
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//#
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//# License for more details.
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//# $Id$
//
#ifndef SYNTHESIS_TRANSFORM2_POINTINGOFFSETS_H
#define SYNTHESIS_TRANSFORM2_POINTINGOFFSETS_H

#include <synthesis/MeasurementComponents/SolvableVisCal.h>
#include <synthesis/TransformMachines2/Utils.h>
#include <coordinates/Coordinates/DirectionCoordinate.h>
#include <images/Images/ImageInterface.h>
#include <msvis/MSVis/VisBufferUtil.h>
#include <images/Images/TempImage.h>
#include <msvis/MSVis/VisBuffer2.h>

class SolvableVisJones;
namespace casa { //# NAMESPACE CASA - BEGIN
  namespace refim{
  //
  //-------------------------------------------------------------------------------------------
  //
  class PointingOffsets 
  {
  public:
    PointingOffsets(const int& convOversampling):thePix_p(), pixFieldGrad_p(), imageObsInfo_p(), nx_p(0), ny_p(0), nchan_p(0), npol_p(0), directionIndex_p(0), csys_p(), dc_p(), pointFrame_p(), timeMType_p(), timeUnit_p(), direction1_p(), direction2_p(), doPointing_p(false), vbUtils_p()
    {
      convOversampling_p = convOversampling;
      PO_DEBUG_P = SynthesisUtils::getenv("PO_DEBUG",0);
      cerr << "PO_DEBUG = " << PO_DEBUG_P << endl;
   }
    ~PointingOffsets() {};
    PointingOffsets& operator=(const PointingOffsets& other);

    void setEPJones(SolvableVisJones* epJ) {epJ_p = epJ;};
    virtual casacore::Vector<casacore::Vector<casacore::Double> >findMosaicPointingOffset(const casacore::ImageInterface<casacore::Complex>& image,
                                                                        const vi::VisBuffer2& vb, const casacore::Bool& doPointing=false);

    virtual casacore::Vector<casacore::Vector<casacore::Double> >findAntennaPointingOffset(const casacore::ImageInterface<casacore::Complex>& image,
                                                                         const vi::VisBuffer2& vb, const casacore::Bool& doPointing=true);

    virtual casacore::Vector<casacore::Vector<casacore::Double> >findPointingOffset(const casacore::ImageInterface<casacore::Complex>& image,
                                                                  const vi::VisBuffer2& vb, const casacore::Bool doPointing=false);

    casacore::Vector<double> gradPerPixel(const casacore::Vector<double>& p);
    casacore::Vector<casacore::Double>& toPix(const vi::VisBuffer2& vb, 
                                              const casacore::MDirection& dir1, const casacore::MDirection& dir2);
    void storeImageParams(const casacore::ImageInterface<casacore::Complex>& iimage, const vi::VisBuffer2& vb);

    void setDoPointing(const bool& dop=false) {doPointing_p = dop;}

  private:

    casacore::Vector<double> thePix_p, pixFieldGrad_p;
    casacore::DirectionCoordinate imageDC_p;
    casacore::ObsInfo imageObsInfo_p;
    int nx_p, ny_p, nchan_p, npol_p, convOversampling_p, directionIndex_p;
    casacore::CoordinateSystem csys_p;
    casacore::DirectionCoordinate dc_p;
    casacore::MDirection::Convert pointToPix_p;
    casacore::MeasFrame pointFrame_p;
    casacore::MEpoch::Types timeMType_p;
    casacore::Unit timeUnit_p;
    casacore::MDirection direction1_p;
    casacore::MDirection direction2_p;
    casacore::CountedPtr<SolvableVisJones> epJ_p;
    bool doPointing_p;
    VisBufferUtil vbUtils_p;

    int PO_DEBUG_P;
  };
  //
  //-------------------------------------------------------------------------------------------
  //
};
};
#endif