CalTableDesc2.h

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//# CalTableDesc.h: Define the format of calibration tables
//# Copyright (C) 1996,1997,1998,2002
//# 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.
//#
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//# along with this library; if not, write to the Free Software Foundation,
//# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA.
//#
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//# $Id$

#ifndef CALIBRATION_CALTABLEDESC2_H
#define CALIBRATION_CALTABLEDESC2_H

#include <casa/aips.h>
#include <tables/Tables/Table.h>
#include <tables/Tables/TableDesc.h>
#include <synthesis/CalTables/VisCalEnum.h>
namespace casa { //# NAMESPACE CASA - BEGIN

// <summary> 
// CalTableDesc: Define the format of calibration tables
// </summary>

// <use visibility=export>

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

// <prerequisite>
//   <li> <linkto class="CalTable">CalTable</linkto> module
// </prerequisite>
//
// <etymology>
// From "Calibration table" and "descriptor".
// </etymology>
//
// <synopsis>
// CalTableDesc defines the format of calibration tables in terms
// of table descriptors <linkto class="TableDesc">TableDesc</linkto>, as
// defined in the Table system. This is a base class and defines the
// overall calibration table structure. Specializations for both
// antenna-based (ViJones and SkyJones) and baseline-based (MJones)
// calibration tables are provided through inheritance. At present this 
// set of classes returns the default calibration table descriptors for a 
// given calibration table type.
// </etymology>
//
// <example>
// <srcblock>
// </srcblock>
// </example>
//
// <motivation>
// This inheritance tree defines the format of all calibration
// table types, both antenna- and baseline-based, to provide
// a unified and consistent interface to their representation
// as aips++ tables. An overall structure common to all calibration
// tables is maintained as far as possible, with common column
// names throughout. This class tree is primarily used by
// the <linkto class="CalTable"> CalTable</linkto> classes.
// </motivation>
//
// <todo asof="98/01/01">
// Generate the calibration table descriptors from a VisSet or VisBuffer object
// </todo>

class CalTableDesc2
{
public:
  //  enum {REAL=0, COMPLEX};
  // Default null constructor, and destructor
  CalTableDesc2();
  virtual ~CalTableDesc2() {};
  
  // Construct from the Jones table type
  CalTableDesc2 (const String& jonesType, const Int& parType=VisCalEnum::COMPLEX);
  
  // Return the table descriptors for the main calibration table
  // and the cal_history and cal_desc sub-tables
  virtual TableDesc& calMainDesc();
  virtual TableDesc calHistoryDesc();
  virtual TableDesc calDescDesc();
  const Int parType() {return parType_;}
  // Generate the default table descriptor for fit parameters
  TableDesc defaultFitDesc();
  void addDesc (const TableDesc& sourceTableDesc, TableDesc& targetTableDesc);
  void init(const String& jonesType, const Int& parType);
protected:
  
  // Generate the default table descriptor for general polynomial parameters
  TableDesc defaultPolyDesc();
  
  // Generate the default table descriptor for spline polynomial parameters
  TableDesc defaultSplineDesc();
  
  // Method to insert one table descriptor into another after
  // a specified column name.
  TableDesc insertDesc (const TableDesc& tableDesc, const TableDesc& insert,
                        const String& insertAfter);

private:
  // Generate the default sub-table descriptors
  TableDesc defaultCalMain (const String& jonesType, const Int& parType);
  TableDesc defaultCalDesc();
  TableDesc defaultCalHistory();
  
  // Table descriptors
  TableDesc itsCalMainDesc;
  TableDesc itsCalHistoryDesc;
  TableDesc itsCalDescDesc;
  Int parType_;
};
  
  
} //# NAMESPACE CASA - END

#endif