Line data    Source code

       1             : //# EPointMBuf.h: SolvableVisJones calibration main table buffer
       2             : //# Copyright (C) 1996,1997,1998,2001,2002,2003
       3             : //# Associated Universities, Inc. Washington DC, USA.
       4             : //#
       5             : //# This library is free software; you can redistribute it and/or modify it
       6             : //# under the terms of the GNU Library General Public License as published by
       7             : //# the Free Software Foundation; either version 2 of the License, or (at your
       8             : //# option) any later version.
       9             : //#
      10             : //# This library is distributed in the hope that it will be useful, but WITHOUT
      11             : //# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
      12             : //# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
      13             : //# License for more details.
      14             : //#
      15             : //# You should have received a copy of the GNU Library General Public License
      16             : //# along with this library; if not, write to the Free Software Foundation,
      17             : //# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA.
      18             : //#
      19             : //# Correspondence concerning AIPS++ should be adressed as follows:
      20             : //#        Internet email: casa-feedback@nrao.edu.
      21             : //#        Postal address: AIPS++ Project Office
      22             : //#                        National Radio Astronomy Observatory
      23             : //#                        520 Edgemont Road
      24             : //#                        Charlottesville, VA 22903-2475 USA
      25             : //#
      26             : //#
      27             : //# $Id$
      28             : 
      29             : #ifndef CALIBRATION_EPOINTMBUF_H
      30             : #define CALIBRATION_EPOINTMBUF_H
      31             : 
      32             : #include <synthesis/CalTables/TimeVarVJMBuf.h>
      33             : #include <synthesis/CalTables/EPointMCol.h>
      34             : #include <synthesis/CalTables/SolvableVJTable.h>
      35             : namespace casa {
      36             : // <summary> 
      37             : // EPointMBuf: EPoint calibration main table buffer
      38             : // </summary>
      39             : 
      40             : // <use visibility=export>
      41             : 
      42             : // <reviewed reviewer="" date="" tests="" demos="">
      43             : 
      44             : // <prerequisite>
      45             : // <li> <linkto class="CalMainBuffer">CalMainBuffer</linkto> module
      46             : // <li> <linkto class="TimeVarVisJonesMBuf">TimeVarVisJonesMBuf</linkto> module
      47             : // </prerequisite>
      48             : //
      49             : // <etymology>
      50             : // From "solvable visibility Jones matrix", "cal main table" and "buffer"
      51             : // </etymology>
      52             : //
      53             : // <synopsis>
      54             : // The EPointMBuf class holds a buffer, optionally connected to a 
      55             : // EPoint calibration main table iterator (of base type 
      56             : // CalIterBase). Specializations for different solvable Jones matrix
      57             : // types are provided through inheritance.
      58             : // </synopsis>
      59             : //
      60             : // <example>
      61             : // <srcblock>
      62             : // </srcblock>
      63             : // </example>
      64             : //
      65             : // <motivation>
      66             : // Encapsulate EPoint calibration main table data buffers.
      67             : // </motivation>
      68             : //
      69             : // <todo asof="01/08/01">
      70             : // (i) Deal with non-standard columns.
      71             : // </todo>
      72             : 
      73             : class EPointMBuf : public TimeVarVisJonesMBuf
      74             : {
      75             :  public:
      76             :   // Default constructor. No connection to an underlying
      77             :   // calibration table iterator in this case.
      78             :   EPointMBuf();
      79             : 
      80             :   // Construct from a set of calibration buffer indices and
      81             :   // their specified values. Non-index columns will be set 
      82             :   // to default values, and there is no connection to an 
      83             :   // underlying calibration table iterator in this case.
      84             :   EPointMBuf (const casacore::Vector<casacore::Int>& calIndices, 
      85             :                         const casacore::Block<casacore::Vector<casacore::Int> >& indexValues);
      86             : 
      87             :   // Construct from a calibration table iterator. The calibration
      88             :   // buffer will remain synchronized with the iterator.
      89             :   EPointMBuf (CalIterBase& calIter);
      90             : 
      91             :   // Write the current buffer at the end of a specified cal table;
      92             :   // returns the number of rows appended
      93             :   virtual casacore::Int append (CalTable& calTable);
      94             : 
      95             :   // Maximum number of rows in the calibration buffer
      96             :   virtual casacore::Int nRow();
      97             : 
      98             :   // casacore::Data field accessors
      99             :   virtual casacore::Array<casacore::Float>& pointingOffset();
     100             : 
     101             :  protected:
     102             :   // Factory method to create a columns accessor object of the appropriate type
     103           0 :   virtual EPointMCol* newCalMainCol (CalTable& calTable) {
     104             :     return new 
     105           0 :       EPointMCol(dynamic_cast<EPointTable&>(calTable));};
     106             : 
     107             :   // Calibration table columns accessor
     108           0 :   virtual EPointMCol* calMainCol() 
     109           0 :     {return dynamic_cast<EPointMCol*>(CalMainBuffer::calMainCol());};
     110             : 
     111             :   // Invalidate the current cache.
     112             :   virtual void invalidate();
     113             : 
     114             :   // <group>
     115             :   // Fill the cal buffer attribute columns in an empty cal buffer,
     116             :   // after the cal indices have been set using fillIndices(). The
     117             :   // cal indices, specified as enums from class MSCalEnums, are excluded
     118             :   // as non-attribute columns
     119             :   //
     120             :   // Use a visibility buffer to define the attribute values (NYI)
     121           0 :   virtual void fillAttributes(const casacore::Vector<casacore::Int>& /*calIndices*/,
     122           0 :                               const VisBuffer& /*vb*/) {};
     123             :   //
     124             :   // Set default attribute values
     125             :   virtual void fillAttributes(const casacore::Vector<casacore::Int>& calIndices);
     126             :   // </group>
     127             : 
     128             :  private:
     129             :   // Buffer fields
     130             :   casacore::Array<casacore::Float> pointingOffset_p;
     131             : 
     132             :   // Buffer field status flags
     133             :   casacore::Bool pointingOffsetOK_p;
     134             : };
     135             : }
     136             : #endif