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Last change
on this file since 175 was
157,
checked in by navarro, 18 years ago
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header improvements + xxx doc
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-
Property svn:keywords set to
Id
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File size:
732 bytes
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| 1 | ;------------------------------------------------------------ |
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| 2 | ;+ |
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| 3 | ; |
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| 4 | ; @file_comments |
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| 5 | ; gives yyyymmdd date equivalent of a Julian day |
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| 6 | ; |
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| 7 | ; @categories |
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| 8 | ; Calendar |
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| 9 | ; |
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| 10 | ; @param jday {in}{required} |
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| 11 | ; Julian day |
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| 12 | ; |
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| 13 | ; @returns |
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| 14 | ; date in yyyymmdd format |
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| 15 | ; |
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| 16 | ; @examples |
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| 17 | ; |
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| 18 | ; IDL> print, jul2date(julday(12,23,1999)) |
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| 19 | ; 19991223 |
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| 20 | ; |
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| 21 | ; @history Sebastien Masson (smasson\@lodyc.jussieu.fr) |
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| 22 | ; June 2005 |
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| 23 | ; |
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| 24 | ; @version $Id$ |
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| 25 | ; |
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| 26 | ;- |
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| 27 | ;------------------------------------------------------------ |
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| 28 | function jul2date, jday |
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| 29 | ; |
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| 30 | compile_opt idl2, strictarrsubs |
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| 31 | ; |
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| 32 | |
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| 33 | caldat, jday, month, day, year |
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| 34 | |
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| 35 | res = (10000L*year + 100L*month + day)*(year GE 0) $ |
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| 36 | +( 10000L*year - 100L*month - day)*(year LT 0) |
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| 37 | |
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| 38 | return, long(res) |
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| 39 | end |
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