ArrayTime.h

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/*
 * 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 <stdint.h>
#include <string>

#include <vector>

#include <alma/ASDM/Interval.h> 
#include <alma/ASDM/UTCCorrection.h>

#ifndef WITHOUT_ACS
#include <asdmIDLTypesC.h>
#endif

#include <alma/ASDM/EndianStream.h>

namespace asdm {

class ArrayTime : public Interval {

public:

        // Useful constants
        const static int numberSigDigitsInASecond                                       = 9;
        const static int64_t unitsInASecond                                             = 1000000000LL;
        const static int64_t unitsInADayL                                               = 86400000000000LL;
        const static double unitsInADay ;       
        const static double unitsInADayDiv100 ;         
        const static double julianDayOfBase ;   
        const static int64_t 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 std::string &s); 

        ArrayTime(const ArrayTime &t);
#ifndef WITHOUT_ACS 

        ArrayTime (const asdmIDLTypes::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(int64_t nanoseconds);

        double getJD() const; 

        double getMJD() const; 

/*
        double getJDI() const; 
        double getMJDI() const; 
*/

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

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

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

        static double unitToJD(int64_t unit);
        static double unitToMJD(int64_t unit);
        static int64_t jdToUnit(double jd);
        static int64_t mjdToUnit(double mjd);

        static double utcCorrection(double jd); 

private:

        static int64_t init(int year, int month, double day);
        static int64_t init(int year, int month, int day, int hour, int minute, double second);
        int64_t FITSString(std::string t) const;

/*
        static const int numberSigDigitsInASecond;
        static const int64_t unitsInASecond;
        static const int64_t unitsInADayL;
        static const double unitsInADay;
        static const double unitsInADayDiv100;
        static const double julianDayOfBase;
        static const int64_t 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 */