casa6

//# --------------------------------------------------------------------

//# SingleDishBeamUtil.h: this defines utility functions to caluculate

//#  single dish beam of image

//# --------------------------------------------------------------------

//# Copyright (C) 2015

//# National Astronomical Observatory of Japan

//#

//# 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

//#

//# $Id$

#ifndef SINGLEDISH_BEAM_UTIL_H

#define SINGLEDISH_BEAM_UTIL_H

​

#include <casacore/casa/aips.h>

#include <casacore/casa/Arrays/Matrix.h>

#include <casacore/casa/BasicSL/String.h>

#include <casacore/casa/Quanta/Quantum.h>

#include <casacore/casa/Quanta/Unit.h>

#include <casacore/casa/Utilities/CountedPtr.h>

#include <casacore/ms/MeasurementSets/MeasurementSet.h>

​

namespace casa {

​

class SingleDishBeamUtil

{

 public:

  SingleDishBeamUtil(const casacore::MeasurementSet &ms,

             const casacore::String &referenceFrame,

             const casacore::String &movingSource,

             const casacore::String &pointingColumn,

             const casacore::String &antenna);

  /* 

   * Return pointing sampling of map

   */

  casacore::Bool getPointingSamplingRaster(

             casacore::Quantum<casacore::Vector<casacore::Double>> &sampling,

                     casacore::Quantity &positionAngle);

 private:

  // get pointing direction of rows in MS.

  // out put is a column major Matrix of PointingList in radian

  // (column=0: longitude, column=1: latitude)

  // Longitude is reorganized to in -pi~+pi range, if map area corsses 2pi. 

  casacore::Bool getMapPointings(

               casacore::Matrix<casacore::Double> &pointingList);