| 1 | ;+ |
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| 2 | ; |
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| 3 | ; @file_comments |
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| 4 | ; Allow to pass from a 2d sill level array to the 3d mask array with 1s in |
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| 5 | ; levels above the sill level and 0s below (and on it) |
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| 6 | ; |
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| 7 | ; @categories |
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| 8 | ; Without loop |
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| 9 | ; |
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| 10 | ; @param TAB {in}{required}{type=2d array} |
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| 11 | ; 2d level array of sill level (or a structure respecting litchamp criterions) |
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| 12 | ; |
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| 13 | ; @returns |
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| 14 | ; It is a 3d array containing the mask associated to the 2d sill level array |
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| 15 | ; |
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| 16 | ; @uses |
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| 17 | ; common.pro |
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| 18 | ; |
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| 19 | ; @history |
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| 20 | ; Sebastien Masson (smasson\@lodyc.jussieu.fr) |
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| 21 | ; 17/6/1999 |
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| 22 | ; Setp 2004: boundary level have 0 values and not 1 (as it was |
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| 23 | ; explained before in the header). see: |
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| 24 | ; print, array_equal(niveau, total(level2mask(niveau),3)) |
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| 25 | ; |
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| 26 | ; |
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| 27 | ; @version |
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| 28 | ; $Id$ |
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| 29 | ; |
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| 30 | ;- |
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| 31 | ; |
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| 32 | FUNCTION level2mask, tab |
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| 33 | ; |
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| 34 | compile_opt idl2, strictarrsubs |
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| 35 | ; |
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| 36 | tempsun = systime(1) ; To key_performance |
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| 37 | @common |
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| 38 | ;------------------------------------------------------------ |
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| 39 | ; Reading of the input field and recovery of the size of the used subdomain |
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| 40 | ;------------------------------------------------------------ |
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| 41 | niveaux = litchamp(tab) |
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| 42 | grille,maskterre, -1, -1, -1,nx,ny,nz,firstx,firsty,firstz,lastx,lasty,lastz |
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| 43 | ;--------------------------------------------------------------- |
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| 44 | ; verification of the coherence between the array's size and the defined by domdef domain |
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| 45 | ;--------------------------------------------------------------- |
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| 46 | IF ny EQ 1 THEN niveaux = reform(niveaux, nx, ny, /over) |
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| 47 | taille = size(niveaux) |
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| 48 | if taille[0] NE 2 then return, report('le champ en entree doit contenir un tableau 2d') |
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| 49 | case 1 of |
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| 50 | taille[1] eq jpi and taille[2] eq jpj:niveaux=niveaux[firstx:lastx, firsty:lasty] |
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| 51 | taille[1] eq nx and taille[2] eq ny: |
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| 52 | else:return, report('Probleme d''adequation entre les tailles du domaine et celle du champ.') |
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| 53 | endcase |
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| 54 | ;------------------------------------------------------------ |
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| 55 | ;------------------------------------------------------------ |
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| 56 | ; We transform the 2d leval array in 3d mask array |
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| 57 | ;------------------------------------------------------------ |
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| 58 | mask = reform( niveaux[*]#(1./(indgen(nz)+1)), nx, ny, nz ) |
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| 59 | mask = floor(temporary(mask)) < 1 |
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| 60 | mask = temporary(mask)*temporary(maskterre) |
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| 61 | ;------------------------------------------------------------ |
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| 62 | ;------------------------------------------------------------ |
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| 63 | ;------------------------------------------------------------ |
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| 64 | if keyword_set(key_performance) THEN print, 'temps level2mask', systime(1)-tempsun |
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| 65 | return, mask |
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| 66 | end |
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