/*
*+
* Name:
* palDjcal
* Purpose:
* Modified Julian Date to Gregorian Calendar
* Language:
* Starlink ANSI C
* Type of Module:
* Library routine
* Invocation:
* void palDjcal ( int ndp, double djm, int iymdf[4], int *j );
* Arguments:
* ndp = int (Given)
* Number of decimal places of days in fraction.
* djm = double (Given)
* Modified Julian Date (JD-2400000.5)
* iymdf[4] = int[] (Returned)
* Year, month, day, fraction in Gregorian calendar.
* j = status (Returned)
* 0 = OK. See iauJd2cal for other values.
* Description:
* Modified Julian Date to Gregorian Calendar, expressed
* in a form convenient for formatting messages (namely
* rounded to a specified precision, and with the fields
* stored in a single array)
* Authors:
* PTW: Pat Wallace (STFC)
* TIMJ: Tim Jenness (JAC, Hawaii)
* {enter_new_authors_here}
* History:
* 2012-02-10 (TIMJ):
* Initial version with documentation taken from Fortran SLA
* {enter_further_changes_here}
* Notes:
* - Uses iauJd2cal
* Copyright:
* Copyright (C) 2012 Science and Technology Facilities Council.
* All Rights Reserved.
* Licence:
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 3 of
* the License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
* USA.
* Bugs:
* {note_any_bugs_here}
*-
*/
#include
#include "pal.h"
#include "palmac.h"
#include "sofa.h"
void palDjcal ( int ndp, double djm, int iymdf[4], int *j ) {
double frac = 0.0;
double nfd;
*j = iauJd2cal( PAL__MJD0, djm, &(iymdf[0]),
&(iymdf[1]), &(iymdf[2]),
&frac);
/* Convert ndp to a power of 10 */
nfd = pow( 10., (double)ndp );
/* Multiply the fraction */
frac *= nfd;
/* and now we want to round to the nearest integer */
iymdf[3] = (int)DNINT(frac);
}