casa6

/* -*- mode: c++ -*- */

//# PassThroughTVI

//# Copyright (C) 2017

//# 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 addressed 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

//#

​

#ifndef PASSTHROUGHTVI_H_

#define PASSTHROUGHTVI_H_

​

#include <msvis/MSVis/TransformingVi2.h>

#include <msvis/MSVis/VisibilityIterator2.h>

#include <msvis/MSVis/ViiLayerFactory.h>

​

namespace casa { //# NAMESPACE CASA - BEGIN

​

namespace vi { //# NAMESPACE VI - BEGIN

​

/* 

 * This class is the simplest TVI possible that passes all the requests to the

 * underlying VI (delegating to TransformingVi2). It can be used for

 * testing purposes.

 */

class PassThroughTVI : public TransformingVi2

{

public:

    //Constructor

    PassThroughTVI(ViImplementation2 * inputVii);

​

    void origin() override;

​

    void next() override;

​

};

​

/*

 * Factory that allows the creation of PassThroughTVI classes.

 * This factory doesn't have any parameter to configure

 */

class PassThroughTVIFactory : public ViFactory 

{

​