PClarkCleanImageSkyModel.h

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//# PClarkCleanImageSkyModel.h: Definition for PClarkCleanImageSkyModel
//# Copyright (C) 1996,1997,1998,1999,2001
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//# $Id$

#ifndef SYNTHESIS_PCLARKCLEANIMAGESKYMODEL_H
#define SYNTHESIS_PCLARKCLEANIMAGESKYMODEL_H

#include <synthesis/MeasurementComponents/CleanImageSkyModel.h>
namespace casa { //# NAMESPACE CASA - BEGIN

//forward
class SkyEquation;

// <summary> 
// Clark Image Sky Model: Image Sky Model implementing the Clark Clean algorithm
// </summary>

// <use visibility=export>

// <reviewed reviewer="" date="" tests="" demos="">

// <prerequisite>
//   <li> <linkto class=ImageSkyModel>ImageSkyModel</linkto> module
//   <li> <linkto class=ClarkCleanImageSkyModel>ClarkCleanImageSkyModel</linkto> module
// </prerequisite>
//
// <etymology>
// PClarkCleanImageSkyModel implements the Clark Clean algorithm.
// It is derived from <linkto class=SkyModel>SkyModel</linkto>.
// </etymology>
//
// <synopsis> 
// The Clark Clean is an FFT-based clean algorithm. Cleaning is
// split into major and minor cycles. In a minor cycle, the
// brightest pixels are cleaned using only the strongest sidelobes
// (and main lobe) of the PSF. In the major cycle, a fully correct
// subtraction of the PSF is done for all points accumulated in the
// minor cycle using an FFT-based convolution for speed.
//
// Masking is optionally performed using a mask image: only points
// where the mask is non-zero are cleaned. If no mask is specified
// all points in the inner quarter of the image are cleaned.
// </synopsis> 
//
// <example>
// See the example for <linkto class=SkyModel>SkyModel</linkto>.
// </example>
//
// <motivation>
// </motivation>
//
// <todo asof="97/10/01">
// <ul> Allow specification of more control parameters
// </todo>

class PClarkCleanImageSkyModel : public CleanImageSkyModel {
public:
  // Default constructor
  PClarkCleanImageSkyModel() : displayProgress(False) {}

  // Solve for this SkyModel
  virtual Bool solve (SkyEquation& me);

  // Set progress display
  void setDisplayProgress (const Bool display )
    {displayProgress = display;}

private:
  // Progress display flag
  Bool displayProgress;
};


} //# NAMESPACE CASA - END

#endif