casa6

//# FlagAgentShadow.h: This file contains the interface definition of the FlagAgentShadow class.

//#

//#  CASA - Common Astronomy Software Applications (http://casa.nrao.edu/)

//#  Copyright (C) Associated Universities, Inc. Washington DC, USA 2011, All rights reserved.

//#  Copyright (C) European Southern Observatory, 2011, All rights reserved.

//#

//#  This library is free software; you can redistribute it and/or

//#  modify it under the terms of the GNU Lesser General Public

//#  License as published by the Free software Foundation; either

//#  version 2.1 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

//#  Lesser General Public License for more details.

//#

//#  You should have received a copy of the GNU Lesser General Public

//#  License along with this library; if not, write to the Free Software

//#  Foundation, Inc., 59 Temple Place, Suite 330, Boston,

//#  MA 02111-1307  USA

//# $Id: $

​

#ifndef FlagAgentShadow_H_

#define FlagAgentShadow_H_

​

#include <flagging/Flagging/FlagAgentBase.h>

​

namespace casa { //# NAMESPACE CASA - BEGIN

​

class FlagAgentShadow : public FlagAgentBase {

​

public:

​

    FlagAgentShadow(FlagDataHandler *dh, casacore::Record config, casacore::Bool writePrivateFlagCube = false, casacore::Bool flag = true);

    ~FlagAgentShadow();

​

protected:

​

    // Common functionality for each visBuffer (don't repeat at the row level)

    void preProcessBuffer(const vi::VisBuffer2 &visBuffer);

​

    // Common preProcessing code for the single/multiple agent cases

    void preProcessBufferCore(const vi::VisBuffer2 &visBuffer);

​

    // Compute flags afor a given mapped visibility point

    bool computeRowFlags(const vi::VisBuffer2 &visBuffer, FlagMapper &flags, casacore::uInt row);

​

    // Parse configuration parameters

    void setAgentParameters(casacore::Record config);

​

private:

​

        // casacore::Function to compute antenna UVW values for the current timestep

        casacore::Bool computeAntUVW(const vi::VisBuffer2 &vb, casacore::Int rownr);

        // casacore::Function to compute shadowed antennas, given a list of antenna UVWs.

        void calculateShadowedAntennas(const vi::VisBuffer2 &visBuffer, casacore::Int rownr);

        // casacore::Function to decide if the 'behind' antenna is shadowed or not, for one baseline

        void decideBaselineShadow(casacore::Double uvDistance, casacore::Double w, casacore::Int antenna1, casacore::Int antenna2);

        // casacore::Function to return baseline index.

        casacore::uInt baselineIndex(casacore::uInt nAnt, casacore::uInt a1, casacore::uInt a2);

    /// casacore::Input parameters ///

    casacore::Double shadowTolerance_p;