| 1 | ;+ |
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| 2 | ; |
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| 3 | ; @file_comments |
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| 4 | ; reading the bathymetry ASCII file of OPA |
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| 5 | ; |
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| 6 | ; @categories |
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| 7 | ; For OPA |
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| 8 | ; |
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| 9 | ; @param FILENAME {in}{required}{type=string} |
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| 10 | ; It contains the filename, |
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| 11 | ; |
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| 12 | ; @keyword ZERO to put 0 on land instead of negatives values for the islands. |
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| 13 | ; |
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| 14 | ; @returns |
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| 15 | ; a 2d array |
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| 16 | ; |
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| 17 | ; @history |
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| 18 | ; Sebastien Masson (smasson\@lodyc.jussieu.fr) |
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| 19 | ; May 31, 2002 |
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| 20 | ; based on batlec2.pro, written by Maurice Imbard, March 17, 1998 |
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| 21 | ; |
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| 22 | ; @version |
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| 23 | ; $Id$ |
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| 24 | ; |
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| 25 | ;- |
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| 26 | FUNCTION readbat, filename, ZERO = zero |
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| 27 | ; |
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| 28 | compile_opt idl2, strictarrsubs |
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| 29 | ; |
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| 30 | |
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| 31 | ;; |
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| 32 | ;; lecture de la bathymetrie |
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| 33 | ;; |
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| 34 | iname_file = findfile(filename) |
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| 35 | if iname_file[0] EQ '' then begin |
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| 36 | ras = report( 'Bad file name') |
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| 37 | return, -1 |
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| 38 | ENDIF ELSE iname_file = iname_file[0] |
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| 39 | openr, iunit, iname_file, /get_lun |
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| 40 | ; readf, iunit, FORMAT = '(16x,2i8)', iim, ijm |
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| 41 | ; iim = long(iim) |
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| 42 | ; ijm = long(ijm) |
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| 43 | tmp = '' |
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| 44 | readf, iunit, tmp |
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| 45 | tmp = strsplit(tmp,' ',/extract) |
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| 46 | iim = long(tmp[n_elements(tmp)-2]) |
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| 47 | ijm = long(tmp[n_elements(tmp)-1]) |
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| 48 | ; print, iim, ijm |
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| 49 | ifreq = 40L |
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| 50 | ifin = iim/ifreq+1 |
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| 51 | irest = iim-(ifin-1)*ifreq |
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| 52 | ; print, ifin,irest,ifreq |
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| 53 | zbati = intarr(ifreq) |
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| 54 | zbati2 = intarr(irest) |
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| 55 | zbat = intarr(iim,ijm) |
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| 56 | ; |
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| 57 | readf, iunit, FORMAT = '(/)' |
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| 58 | readf, iunit, FORMAT = '(/)' |
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| 59 | il1 = 0 |
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| 60 | FOR jn = 1, ifin-1 DO BEGIN |
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| 61 | readf, iunit, FORMAT = '(/)' |
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| 62 | readf, iunit, FORMAT = '(/)' |
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| 63 | il2 = min([ iim-1, il1+ifreq-1] ) |
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| 64 | readf, iunit, FORMAT = '(/)' |
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| 65 | readf, iunit, FORMAT = '(/)' |
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| 66 | readf, iunit, FORMAT = '(/)' |
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| 67 | il3 = il2-(jn-1)*ifreq |
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| 68 | iformat = string('(', il3+2, 'i3)') |
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| 69 | ; print,jn,il1,il2,il3,ifreq-1 |
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| 70 | FOR jj = ijm-1, 0, -1 DO BEGIN |
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| 71 | readf, iunit, FORMAT = iformat, ij, zbati |
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| 72 | zbat[il1:il2, jj] = zbati |
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| 73 | ENDFOR |
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| 74 | il1 = il1 + ifreq |
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| 75 | ENDFOR |
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| 76 | readf, iunit, FORMAT = '(/)' |
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| 77 | readf, iunit, FORMAT = '(/)' |
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| 78 | il2 = min([ iim-1, il1+ifreq-1] ) |
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| 79 | readf, iunit, FORMAT = '(/)' |
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| 80 | readf, iunit, FORMAT = '(/)' |
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| 81 | readf, iunit, FORMAT = '(/)' |
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| 82 | il3 = il2-(ifin-1)*ifreq |
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| 83 | iformat = string('(', il3+2, 'i3)') |
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| 84 | ; print, irest-1,il1,il2,il3 |
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| 85 | FOR jj = ijm-1, 0, -1 DO BEGIN |
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| 86 | readf, iunit, FORMAT = iformat, ij, zbati2 |
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| 87 | zbat[il1:il2, jj] = zbati2 |
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| 88 | ENDFOR |
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| 89 | close, iunit |
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| 90 | free_lun, iunit |
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| 91 | ;; |
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| 92 | if keyword_set(zero) then zbat = 0 > zbat |
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| 93 | return, zbat |
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| 94 | end |
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