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Last change
on this file since 157 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:
673 bytes
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| Line | |
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| 1 | ;+ |
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| 2 | ; @file_comments |
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| 3 | ; |
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| 4 | ; |
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| 5 | ; @categories |
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| 6 | ; |
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| 7 | ; |
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| 8 | ; @param NUM |
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| 9 | ; |
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| 10 | ; |
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| 11 | ; @param OFFSET |
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| 12 | ; |
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| 13 | ; |
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| 14 | ; @returns |
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| 15 | ; |
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| 16 | ; |
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| 17 | ; @restrictions |
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| 18 | ; |
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| 19 | ; |
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| 20 | ; @examples |
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| 21 | ; |
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| 22 | ; |
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| 23 | ; @history |
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| 24 | ; |
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| 25 | ; |
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| 26 | ; @version |
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| 27 | ; $Id$ |
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| 28 | ;- |
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| 29 | FUNCTION read_grib_is, num, offset |
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| 30 | ; |
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| 31 | compile_opt idl2, strictarrsubs |
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| 32 | ; |
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| 33 | |
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| 34 | infofile = fstat(num) |
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| 35 | |
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| 36 | a = assoc(num, bytarr(4, /nozero), offset) |
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| 37 | typefile = string(a[0]) |
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| 38 | IF typefile NE 'GRIB' THEN stop |
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| 39 | |
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| 40 | ; |
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| 41 | a = assoc(num, bytarr(1, /nozero), offset+4) |
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| 42 | sizerecord = bit2int([binary(a[0]), binary(a[1]), binary(a[2])]) |
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| 43 | ; |
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| 44 | a = assoc(num, bytarr(1, /nozero), offset+7) |
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| 45 | gribed = a[0] |
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| 46 | IF gribed NE 1 THEN stop |
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| 47 | ; |
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| 48 | RETURN, {typefile:typefile, sizerecord:sizerecord, gribed:gribed[0]} |
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| 49 | END |
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