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qsastime_extra.h

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00001 #ifndef _QSASTIME_EXTRA_H_
00002 #define _QSASTIME_EXTRA_H_
00003 //
00004 // This software originally contributed under the LGPL in January 2009 to
00005 // PLplot by the
00006 // Cluster Science Centre
00007 // QSAS team,
00008 // Imperial College, London
00009 // Copyright (C) 2009 Imperial College, London
00010 //
00011 // This file is part of PLplot.
00012 //
00013 // PLplot is free software; you can redistribute it and/or modify
00014 // it under the terms of the GNU Library General Public License as published
00015 // by the Free Software Foundation; either version 2 of the License, or
00016 // (at your option) any later version.
00017 //
00018 // PLplot is distributed in the hope that it will be useful,
00019 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00020 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00021 // GNU Library General Public License for more details.
00022 //
00023 // You should have received a copy of the GNU Library General Public License
00024 // along with PLplot; if not, write to the Free Software
00025 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
00026 //
00027 //
00028 
00029 // MJD measures from the start of 17 Nov 1858
00030 
00031 // These utilities use the Gregorian calendar after 4 Oct 1582 (Julian) i.e. from 15 Oct 1582 Gregorian
00032 // Note C libraries use Gregorian only from 14 Sept 1752
00033 // More detailed discussion can be found at http://aa.usno.navy.mil/data/docs/JulianDate.php
00034 // These routines have been compared with the results of the US Naval Observatory online converter.
00035 // Modified Julian Date (MJD) = Julian Date (JD) - 2400000.5
00036 //
00037 // In all routines, specifying a day, hour, minute or second field greater than would be valid is
00038 // handled with modulo arithmetic and safe.
00039 // Thus 2006-12-32 00:62:00.0 will safely, and correctly, be treated as 2007-01-01 01:02:00.0
00040 //
00041 //
00042 
00043 #include <stdio.h>
00044 #include <stdlib.h>
00045 #include <string.h>
00046 // include header file for dll definitions
00047 #include "qsastimeP.h"
00048 
00049 QSASTIMEDLLIMPEXP void setFromDOY( int year, int doy, int hour, int min, double sec, MJDtime *MJD, int forceJulian );
00050 QSASTIMEDLLIMPEXP void setFromBCE( int yearBCE, int month, int day, int hour, int min, double sec, MJDtime *MJD, int forceJulian );
00051 QSASTIMEDLLIMPEXP void setFromMJD( double ModifiedJulianDate, MJDtime *MJD );
00052 QSASTIMEDLLIMPEXP void setFromCDFepoch( double cdfepoch, MJDtime *MJD );
00053 QSASTIMEDLLIMPEXP void setFromJD( double JulianDate, MJDtime *MJD );
00054 QSASTIMEDLLIMPEXP int setFromISOstring( const char* ISOstring, MJDtime *MJD, int forceJulian );
00055 QSASTIMEDLLIMPEXP double getMJD( MJDtime *MJD );
00056 QSASTIMEDLLIMPEXP double getJD( MJDtime *MJD );
00057 QSASTIMEDLLIMPEXP double getDiffDays( MJDtime *MJD1, MJDtime *MJD2 );
00058 QSASTIMEDLLIMPEXP double getDiffSecs( MJDtime *MJD1, MJDtime *MJD2 );
00059 QSASTIMEDLLIMPEXP double getCDFepoch( MJDtime *MJD );
00060 QSASTIMEDLLIMPEXP const char * getISOString( MJDtime *MJD, int delim, int forceJulian );
00061 //** Warning getISOString is not thread safe **
00062 
00063 #endif

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