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//# NewMSSimulator.h: this defines the MeasurementSet Simulator
//# Copyright (C) 1995-2009
//# 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: casa-feedback@nrao.edu.
//# Postal address: AIPS++ Project Office
//# National Radio Astronomy Observatory
//# 520 Edgemont Road
//# Charlottesville, VA 22903-2475 USA
#ifndef MS_NEWMSSIMULATOR_H
#define MS_NEWMSSIMULATOR_H
//# Includes
#include <memory>
#include <casacore/casa/aips.h>
#include <casacore/casa/BasicSL/String.h>
#include <casacore/casa/Arrays/Vector.h>
#include <casacore/casa/Arrays/Matrix.h>
#include <casacore/casa/Arrays/Cube.h>
#include <casacore/casa/BasicSL/Complex.h>
#include <casacore/casa/Quanta/Quantum.h>
#include <casacore/measures/Measures/MPosition.h>
#include <casacore/measures/Measures/MEpoch.h>
#include <casacore/measures/Measures/MFrequency.h>
#include <casacore/measures/Measures/MDirection.h>
#include <casacore/tables/DataMan/TiledDataStManAccessor.h>
namespace casacore { //# NAMESPACE CASACORE - BEGIN
//# Forward Declarations
class MeasurementSet;
// <category lib=aips module="ModuleName">
// <summary> Create an empty MeasurementSet from observation and telescope descriptions. </summary>
// <reviewed reviewer="" date="" tests="">
//
// <prerequisite>
//# Classes you should understand before using this one.
// <li> MeasurementSet
// </prerequisite>
//
// <etymology>
// MS is from MeasurementSet, Simulator refers to the generation of
// 'fake' data from a set of parameters for instrument and sources.
// </etymology>
//
// <synopsis>
// This class creates a MeasurementSet from a set of parameters for instrument
// and sources. It does not simulate the data, only the coordinates of a
// measurement. The application "simulator" uses this class to create a true
// simulated MS with perfect or corrupted data.
// </synopsis>
//
// <motivation>
// To test calibration and imaging programs it is necessary to have flawless
// data and data with errors that are known exactly. This class generates
// empty MeasurementSets (only coordinates filled in) that can be filled
// with predicted data.
// </motivation>
//
// <todo asof="$DATE:$">
//# A List of bugs, limitations, extensions or planned refinements.
// <li> The amount of information to be specified by the user
// could be much larger. For the moment it has been restricted to
// what is needed for testing the synthesis imaging code. Already
// it is possible to create MeasurementSets that cannot be processed
// yet.
// </todo>
class NewMSSimulator
{
public:
// Constructor from name only
NewMSSimulator(const String&);
// Constructor from existing MS
NewMSSimulator(MeasurementSet&);
// Copy constructor - for completeness only
NewMSSimulator(const NewMSSimulator & mss);
//# Destructor
~NewMSSimulator();
//# Operators
// Assignment
NewMSSimulator & operator=(const NewMSSimulator &);
// Set maximum amount of data (bytes) to be written into any one
// scratch column hypercube
void setMaxData(const Double maxData=2e9) {maxData_p=maxData;}
// set the antenna and array data. These are written immediately to the
// existing MS. The same model is used for the other init infor.
void initAnt(const String& telname,
const Vector<Double>& x,
const Vector<Double>& y,
const Vector<Double>& z,
const Vector<Double>& dishDiameter,
const Vector<Double>& offset,
const Vector<String>& mount,
const Vector<String>& name,
const Vector<String>& padname,
const String& coordsystem,
const MPosition& mRefLocation);
// get the info back
bool getAnt(String& telescope, Int& nAnt, Matrix<Double>* antXYZ,
Vector<Double>& antDiam, Vector<Double>& offset,
Vector<String>& mount, Vector<String>& name, Vector<String>& padname,
String& coordsystem, MPosition& mRefLocation );
// set the observed fields
void initFields(const String& sourceName,
const MDirection& sourceDirection,
const String& calCode);
bool getFields(Int& nField,
Vector<String>& sourceName,
Vector<MDirection>& sourceDirection,
Vector<String>& calCode);
// set the Feeds; brain dead version
void initFeeds(const String& mode);
bool getFeedMode(String& mode);
// set the Feeds; Smart version
void initFeeds(const String& mode,
const Vector<Double>& x,
const Vector<Double>& y,
const Vector<String>& pol);
// set the spectral windows information
void initSpWindows(const String& spWindowName,
const Int& nChan,
const Quantity& startFreq,
const Quantity& freqInc,
const Quantity& freqRes,
const MFrequency::Types& freqType,
const String& stokesString);
bool getSpWindows(Int& nSpw,
Vector<String>& spWindowName,
Vector<Int>& nChan,
Vector<Quantity>& startFreq,
Vector<Quantity>& freqInc,
Vector<String>& stokesString);
void setFractionBlockageLimit(const Double fraclimit)
{ fractionBlockageLimit_p = fraclimit; }
void setElevationLimit(const Quantity& ellimit)
{ elevationLimit_p = ellimit; }
void setAutoCorrelationWt(const Float autocorrwt)
{ autoCorrelationWt_p = autocorrwt; }
void settimes(const Quantity& qIntegrationTime,
const Bool useHourAngles,
const MEpoch& mRefTime);
void observe(const String& sourceName,
const String& spWindowName,
const Quantity& qStartTime,
const Quantity& qStopTime,
const Bool add_observation=True,
//# from int ASDM2MSFiller::addUniqueState(
//# defaults for ALMA as known on 20100831
const Bool state_sig=True,
const Bool state_ref=True,
const double& state_cal=0.,
const double& state_load=0.,
const unsigned int state_sub_scan=1,
const String& state_obs_mode="OBSERVE_TARGET.ON_SOURCE",
const String& observername="CASA simulator",
const String& projectname="CASA simulation");
void observe(const Vector<String>& sourceNames,
const String& spWindowName,
const Vector<Quantity>& qStartTimes,
const Vector<Quantity>& qStopTimes,
const Vector<MDirection>& directions,
const Bool add_observation=True,
//# from int ASDM2MSFiller::addUniqueState(
//# defaults for ALMA as known on 20100831
const Bool state_sig=True,
const Bool state_ref=True,
const double& state_cal=0.,
const double& state_load=0.,
const unsigned int state_sub_scan=1,
const String& state_obs_mode="OBSERVE_TARGET.ON_SOURCE",
const String& observername="CASA simulator",
const String& projectname="CASA simulation");
std::shared_ptr<MeasurementSet> getMs () const;
private:
// Prevent use of default constructor
NewMSSimulator() {}
//# Data Members
Double fractionBlockageLimit_p;
Quantity elevationLimit_p;
Float autoCorrelationWt_p;
String telescope_p;
Quantity qIntegrationTime_p;
Bool useHourAngle_p;
Bool hourAngleDefined_p;
MEpoch mRefTime_p;
Double t_offset_p;
Double dataWritten_p;
Int hyperCubeID_p;
Bool hasHyperCubes_p;
Int lastSpWID_p;
Int lastNchan_p;
std::shared_ptr<MeasurementSet> ms_p;
TiledDataStManAccessor dataAcc_p, scratchDataAcc_p, sigmaAcc_p, flagAcc_p;
Double maxData_p;
void local2global(Vector<Double>& xReturned,
Vector<Double>& yReturned,
Vector<Double>& zReturned,
const MPosition& mRefLocation,
const Vector<Double>& xIn,
const Vector<Double>& yIn,
const Vector<Double>& zIn);
void longlat2global(Vector<Double>& xReturned,
Vector<Double>& yReturned,
Vector<Double>& zReturned,
const MPosition& mRefLocation,
const Vector<Double>& xIn,
const Vector<Double>& yIn,
const Vector<Double>& zIn);
// Returns the fractional blockage of one antenna by another
// We will want to put this somewhere else eventually, but I don't yet know where!
// Till then.
// fraction1: fraction of antenna 1 that is blocked by 2
// fraction2: fraction of antenna 2 that is blocked by 1
// hint: at least one of the two will be 0.0
void blockage(Double &fraction1, Double &fraction2,
const Vector<Double>& uvw, // uvw in same units as diam!
const Double diam1, const Double diam2);
String formatDirection(const MDirection&);
String formatTime(const Double);
void addHyperCubes(const Int id, const Int nBase, const Int nChan, const Int nCorr);
void defaults();
Bool calcAntUVW(MEpoch& epoch, MDirection& refdir,
Matrix<Double>& uvwAnt);
};
} //# NAMESPACE CASACORE - END
#endif
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