ArrayTime.h

/*
 * ALMA - Atacama Large Millimeter Array
 * (c) European Southern Observatory, 2002
 * (c) Associated Universities Inc., 2002
 * Copyright by ESO (in the framework of the ALMA collaboration),
 * Copyright by AUI (in the framework of the ALMA collaboration),
 * 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
 *
 * File ArrayTime.h
 */

#ifndef ArrayTime_CLASS
#define ArrayTime_CLASS

#include <string>
using std::string;

#include <vector>
using std::vector;

#include <Interval.h> 
#include <UTCCorrection.h>

#ifndef WITHOUT_ACS
#include <asdmIDLTypesC.h>
using asdmIDLTypes::IDLArrayTime;
#endif

#include "EndianStream.h"
using asdm::EndianOSStream;
using asdm::EndianISStream;

namespace asdm {

class ArrayTime : public Interval {

public:

        // Useful constants
        const static int numberSigDigitsInASecond                                       = 9;
        const static long long unitsInASecond                                           = 1000000000LL;
        const static long long unitsInADayL                                             = 86400000000000LL;
        const static double unitsInADay ;       
        const static double unitsInADayDiv100 ;         
        const static double julianDayOfBase ;   
        const static long long julianDayOfBaseInUnitsInADayDiv100       = 2073600432000000000LL;

        static  bool isLeapYear(int year);
        static  double getMJD(double jd);
        static  double getJD(double mjd);
        static  ArrayTime add(const ArrayTime &time, const Interval &interval);
        static  ArrayTime sub(const ArrayTime &time, const Interval &interval) ;
        static  ArrayTime getArrayTime(StringTokenizer &t) ;

        ArrayTime(); 
        ArrayTime (const string &s); 
        ArrayTime(const ArrayTime &t);
#ifndef WITHOUT_ACS 
        ArrayTime (const IDLArrayTime &t);
#endif 
        ArrayTime(int year, int month, double day); 
        ArrayTime(int year, int month, int day, int hour, int minute, double second);
        ArrayTime(double modifiedJulianDay);
        ArrayTime(int modifiedJulianDay, double secondsInADay);
        ArrayTime(long long nanoseconds); 

        double getJD() const; 
        double getMJD() const; 
        double getJDI() const; 
        double getMJDI() const; 

#ifndef WITHOUT_ACS
        IDLArrayTime toIDLArrayTime() const; 
#endif
        string toFITS() const; 
        
                        
        void toBin(EndianOSStream& eoss);

        static void toBin(const vector<ArrayTime>& arrayTime,  EndianOSStream& eoss);
        
        static void toBin(const vector<vector<ArrayTime> >& arrayTime,  EndianOSStream& eoss);
        
        static void toBin(const vector<vector<vector<ArrayTime> > >& arrayTime,  EndianOSStream& eoss);

        static ArrayTime fromBin(EndianISStream& eiss);
        
         static vector<ArrayTime> from1DBin(EndianISStream & eiss);
         
         static vector<vector<ArrayTime> > from2DBin(EndianISStream & eiss);
         
         static vector<vector<vector<ArrayTime> > > from3DBin(EndianISStream & eiss);   
                
        int *getDateTime() const; 
        double getTimeOfDay() const; 
        int getDayOfWeek() const; 
        int getDayOfYear() const; 
        string timeOfDayToString() const;
        double getLocalSiderealTime(double longitudeInHours) const; 
        double getGreenwichMeanSiderealTime() const; 

        static double unitToJD(long long unit); 
        static double unitToMJD(long long unit);
        static long long jdToUnit(double jd); 
        static long long mjdToUnit(double mjd); 

        static double utcCorrection(double jd); 

private:

        static long long init(int year, int month, double day); 
        static long long init(int year, int month, int day, int hour, int minute, double second);
        long long FITSString(string t) const; 

/*
        static const int numberSigDigitsInASecond;
        static const long long unitsInASecond;
        static const long long unitsInADayL;
        static const double unitsInADay;
        static const double unitsInADayDiv100;
        static const double julianDayOfBase;
        static const long long julianDayOfBaseInUnitsInADayDiv100;
*/
        static const UTCCorrection *UTCCorrectionTable;
        static const UTCCorrection UTCLast;

};

inline double ArrayTime::getJDI() const {return getJD();}
inline double ArrayTime::getMJDI()const  {return getMJD();}
} // End namespace asdm

#endif /* ArrayTime_CLASS */

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