VLAIlluminationConvFunc.h

Go to the documentation of this file.

//# VLAIlluminationConvFunc.h: Definition for VLAIlluminationConvFunc
//# Copyright (C) 1996,1997,1998,1999,2000,2002
//# 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 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
//#
//#
//# $Id$

#ifndef SYNTHESIS_VLAILLUMINATIONCONVFUNC_H
#define SYNTHESIS_VLAILLUMINATIONCONVFUNC_H

#include <synthesis/TransformMachines/IlluminationConvFunc.h>
#include <synthesis/MeasurementComponents/CExp.new3.h>
#include <synthesis/MeasurementComponents/ExpCache.h>
#include <images/Images/TempImage.h>
#include <casa/Exceptions.h>
#include <synthesis/MSVis/VisBuffer.h>
namespace casa
{
  class VLAIlluminationConvFunc: public IlluminationConvFunc
  {
  public:
    VLAIlluminationConvFunc(String fileName);
    VLAIlluminationConvFunc()
      :IlluminationConvFunc(),convFunc_p(),resolution()
    {pbRead_p=False;};
    VLAIlluminationConvFunc(Int n):IlluminationConvFunc(n)    {pbRead_p=False;};
    ~VLAIlluminationConvFunc() {};

    void load(String &fileName,Vector<Int>& whichStokes, 
              Float overSampling=20,Bool putCoords=True);
    void storeImg(String &fileName,ImageInterface<Complex>& img);
    void storeImg(String &fileName,ImageInterface<Float>& img);
    void store(String &fileName);
    void loadFromImage(String &fileName);
    void getIdealConvFunc(Array<Complex>& buf);
    void ftAperture(TempImage<Complex>& uvgrid);
    void ftAperture() {ftAperture(convFunc_p); pbRead_p=True;};
    void storePB(String& fileName);

    Bool pbReady() {return pbRead_p;}

    CoordinateSystem makeUVCoords(CoordinateSystem& imageCoordSys,
                                   IPosition& shape);
    void regridApeture(CoordinateSystem& skyCS, IPosition& skyShape, TempImage<Complex>& uvGrid, 
                       const VisBuffer& vb,Bool doSquint=True);
    void applyPB(ImageInterface<Float>& pbImage, const VisBuffer& vb);
    void applyPB(ImageInterface<Complex>& pbImage, const VisBuffer& vb);
    void ftAperture(String& fileName, Vector<Int>& whichStokes,
                   Float& overSampling, const CoordinateSystem& coordSys);

    /*
    virtual CF_TYPE getValue(Double *coord,
                             Double *raoff1,  Double *raoff2, 
                             Double *decoff1, Double *decoff2,
                             Double *area,
                             Int *doGrad,
                             Complex& weight,
                             Complex& dweight1,
                             Complex& dweight2
                             //           ,Double lsigma
                             );
    */    
  private:
    
    void fillPB(ImageInterface<Complex>& inImg, ImageInterface<Float>& outImg);
    void fillPB(ImageInterface<Complex>& inImg, ImageInterface<Complex>& outImg);

    TempImage<Complex> convFunc_p;
    //    TempImage<Float> reAperture_p, imAperture_p;
    Vector<Double> resolution;
    Bool pbRead_p;
    Float freq_p;
  };

};
#endif