Line data    Source code

       1             : //# CalVisBuffer.h: A VisBuffer with extra stuff for calibration
       2             : //# Copyright (C) 2008
       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 addressed 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             : //# $Id: VisBuffer.h,v 19.14 2006/02/28 04:48:58 mvoronko Exp $
      27             : 
      28             : #ifndef MSVIS_CALVISBUFFER_H
      29             : #define MSVIS_CALVISBUFFER_H
      30             : 
      31             : #include <casacore/casa/aips.h>
      32             : #include <msvis/MSVis/VisBuffer.h>
      33             : 
      34             : namespace casa { //# NAMESPACE CASA - BEGIN
      35             : 
      36             : //#forward
      37             : 
      38             : //<summary>CalVisBuffer extends VisBuffer to support storage and recall of associated residual and differentiated residual data. </summary>
      39             : //
      40             : // <use visibility=export>
      41             : //
      42             : // <reviewed reviewer="" date="" tests="" demos="">
      43             : 
      44             : // <prerequisite>
      45             : //   <li> <linkto class="VisBuffer">VisBuffer</linkto>
      46             : // </prerequisite>
      47             : //
      48             : // <etymology>
      49             : // CalVisBuffer is a VisBuffer for calibration solving
      50             : // </etymology>
      51             : //
      52             : //<synopsis>
      53             : // This class extends <linkto class="VisBuffer">VisBuffer to support 
      54             : // storage and recall of calibration solving-related information
      55             : // such as residuals (difference of trial-corrupted model data and
      56             : // observed data) and corresponding differentiated residuals.
      57             : // 
      58             : // (say something about synchronization with VisIter, etc.)
      59             : // 
      60             : //</synopsis>
      61             : 
      62             : //<todo>
      63             : // <li> write todo list
      64             : //</todo>
      65             : class CalVisBuffer : public VisBuffer
      66             : {
      67             : public:
      68             :   // Create empty VisBuffer you can assign to or attach.
      69             :   CalVisBuffer();
      70             :   // Construct VisBuffer for a particular VisibilityIterator
      71             :   // The buffer will remain synchronized with the iterator.
      72             :   CalVisBuffer(ROVisibilityIterator & iter);
      73             : 
      74             :   // Copy construct, looses synchronization with iterator: only use buffer for
      75             :   // current iteration (or reattach).
      76             :   CalVisBuffer(const CalVisBuffer& cvb);
      77             : 
      78             :   // Destructor (detaches from VisIter)
      79             :   ~CalVisBuffer(); 
      80             : 
      81             :   // Assignment, looses synchronization with iterator: only use buffer for 
      82             :   // current iteration (or reattach)
      83             :   CalVisBuffer& operator=(const VisBuffer& cvb);
      84             : 
      85             :   // Assignment, optionally without copying the data across; with copy=true
      86             :   // this is identical to normal assignment operator
      87             :   CalVisBuffer& assign(const VisBuffer& vb, casacore::Bool copy=true);
      88             : 
      89             :   // Update (simple) coord info 
      90             :   // (this OVERRIDES VisBuffer::updateCoordInfo(), which does more)
      91             :   void updateCoordInfo(const VisBuffer * vb = NULL, const casacore::Bool dirDependent=true);
      92             : 
      93             :   // Apply amp-only or phase-only to data
      94             :   void enforceAPonData(const casacore::String& apmode);
      95             : 
      96             :   // Set the focus channel
      97             :   //  (forms references to focus-channel flag/data/model)
      98             :   void setFocusChan(const casacore::Int focusChan=-1);
      99             : 
     100             :   // Size/init/finalize the residuals workspaces
     101             :   void sizeResiduals(const casacore::Int& nPar,const casacore::Int& nDiff);
     102             :   void initResidWithModel();
     103             :   void finalizeResiduals();
     104             : 
     105             :   // Delete the workspaces
     106             :   void cleanUp();
     107             : 
     108             :   // <group>
     109             :   // Access functions
     110             :   //
     111             : 
     112             :   // Access to focus-channel slices of the flags, data, and model
     113             :   //  casacore::Cube<casacore::Bool>& infocusFlagCube() { return infocusFlagCube_p; }
     114             :   //  const casacore::Cube<casacore::Bool>& infocusFlagCube() const {return this->infocusFlagCube();}
     115             : 
     116           0 :   casacore::Matrix<casacore::Bool>& infocusFlag() { return infocusFlag_p; }
     117             :   const casacore::Matrix<casacore::Bool>& infocusFlag() const {return infocusFlag_p;}
     118             : 
     119             :   casacore::Cube<casacore::Complex>& infocusVisCube() { return infocusVisCube_p; }
     120             :   const casacore::Cube<casacore::Complex>& infocusVisCube() const {return infocusVisCube_p;}
     121             : 
     122             :   casacore::Cube<casacore::Complex>& infocusModelVisCube() { return infocusModelVisCube_p; }
     123             :   const casacore::Cube<casacore::Complex>& infocusModelVisCube() const {return infocusModelVisCube_p;}
     124             : 
     125             :   // Workspace for the residual visibilities
     126           0 :   casacore::Cube<casacore::Complex>& residuals() { return residuals_p; }
     127             :   const casacore::Cube<casacore::Complex>& residuals() const {return residuals_p;}
     128             : 
     129             :   // Workspace for flags of the residuals
     130           0 :   casacore::Matrix<casacore::Bool>& residFlag() { return residFlag_p; }
     131             :   const casacore::Matrix<casacore::Bool>& residFlag() const {return residFlag_p;}
     132             : 
     133             :   // Workspace for the differentiated residuals
     134           0 :   casacore::Array<casacore::Complex>& diffResiduals() { return diffResiduals_p; }
     135             :   const casacore::Array<casacore::Complex>& diffResiduals() const {return diffResiduals_p;}
     136             : 
     137             :   //</group>
     138             : 
     139             : private:
     140             : 
     141             :   // The current in-focus channel
     142             :   casacore::Int focusChan_p;
     143             : 
     144             :   // actual storage for the data
     145             :   //  casacore::Cube<casacore::Bool> infocusFlagCube_p;
     146             :   casacore::Matrix<casacore::Bool> infocusFlag_p;
     147             :   casacore::Cube<casacore::Complex> infocusVisCube_p;
     148             :   casacore::Cube<casacore::Complex> infocusModelVisCube_p;
     149             : 
     150             :   casacore::Cube<casacore::Complex> residuals_p;
     151             :   casacore::Matrix<casacore::Bool> residFlag_p;
     152             :   casacore::Array<casacore::Complex> diffResiduals_p;
     153             : };
     154             : 
     155             : 
     156             : } //# NAMESPACE CASA - END
     157             : 
     158             : #endif
     159             :