1 | ;------------------------------------------------------------ |
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2 | ;------------------------------------------------------------ |
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3 | ;------------------------------------------------------------ |
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4 | ;+ |
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5 | ; NAME: maskread |
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6 | ; |
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7 | ; |
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8 | ; PURPOSE: |
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9 | ; lit un fichier bathymetry ORCA ou un mask atmos |
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10 | ; |
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11 | ; CATEGORY: |
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12 | ; lecture de fichier |
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13 | ; |
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14 | ; INPUTS: |
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15 | |
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16 | ; KEYWORD PARAMETERS: |
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17 | |
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18 | ; COMMON BLOCKS: |
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19 | ; common.pro |
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20 | ; |
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21 | ; SIDE EFFECTS:Retourne -1 en cas d'erreur. |
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22 | ; |
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23 | ; RESTRICTIONS: |
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24 | ; |
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25 | ; EXAMPLE: |
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26 | ; |
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27 | ; MODIFICATION HISTORY: Maurice Imbard (mimlod@ipsl.jussieu.fr) |
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28 | ; 12/05/99 |
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29 | ;- |
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30 | ;-------------------------------------------------------------- |
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31 | ;-------------------------------------------------------------- |
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32 | ;-------------------------------------------------------------- |
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33 | function maskread, bathy, model, D3 = d3 |
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34 | ;; |
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35 | @common |
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36 | @com_eg |
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37 | ;; |
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38 | ;; |
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39 | IF n_elements(nbathys) EQ 0 THEN BEGIN |
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40 | read_bathy = 'yes' |
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41 | ENDIF ELSE BEGIN |
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42 | i = 0 |
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43 | WHILE i LE nbathys-1 DO BEGIN |
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44 | IF bathy_read[i].name EQ bathy THEN BEGIN |
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45 | zbat = bathy_read[i].mask |
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46 | IF keyword_set(D3) THEN BEGIN |
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47 | zbat = 0 > zbat |
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48 | ; Build 3D from pseudo 3D |
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49 | zbat=reform(zbat[*]#(1./(indgen(jpkglo)+1)),(size(zbat))[1],(size(zbat))[2],jpkglo) |
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50 | zbat=floor(zbat)<1 |
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51 | ENDIF ELSE BEGIN |
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52 | zbat = zbat < 1 |
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53 | ENDELSE |
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54 | return, zbat |
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55 | ENDIF ELSE BEGIN |
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56 | read_bathy = 'yes' |
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57 | ENDELSE |
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58 | i = i+1 |
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59 | ENDWHILE |
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60 | ENDELSE |
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61 | |
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62 | IF read_bathy EQ 'yes' THEN BEGIN |
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63 | z = -1 |
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64 | ;; |
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65 | ;--------------------------------------------------------------------- |
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66 | ; definition de la taille du fichier a aller chercher: jpidta,jpjdta,jpkdta... |
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67 | ;--------------------------------------------------------------------- |
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68 | if n_elements(jpidta) EQ 0 THEN BEGIN |
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69 | if n_elements(ixmindta) EQ 0 OR n_elements(ixmaxdta) EQ 0 then $ |
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70 | jpidta = jpiglo else jpidta = ixmaxdta-ixmindta+1 |
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71 | endif |
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72 | if n_elements(jpjdta) EQ 0 THEN BEGIN |
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73 | if n_elements(iymindta) EQ 0 OR n_elements(iymaxdta) EQ 0 then $ |
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74 | jpjdta = jpjglo else jpjdta = iymaxdta-iymindta+1 |
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75 | endif |
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76 | if n_elements(jpkdta) EQ 0 THEN BEGIN |
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77 | if n_elements(izmindta) EQ 0 OR n_elements(izmaxdta) EQ 0 then $ |
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78 | jpkdta = jpkglo else jpkdta = izmaxdta-izmindta+1 |
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79 | endif |
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80 | ;-------------------------------------------------------------------- |
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81 | ; ouverture du fichier a l'adresse s_fichier |
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82 | ;-------------------------------------------------------------------- |
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83 | ;; |
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84 | iname = bathy |
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85 | iname_file = hom_idl+'grids/'+model+'.'+iname |
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86 | openr, iunit, /get_lun,iname_file |
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87 | print, ' Reading ', model+'.'+iname, ' mask ' |
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88 | print, ' ' |
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89 | ;--------------------------------------------------------------------- |
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90 | ; lecture des champs directement vers le champ |
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91 | ;--------------------------------------------------------------------- |
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92 | ifreq = 40 |
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93 | ifin = jpiglo/ifreq+1 |
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94 | irest = jpiglo-(ifin-1)*ifreq |
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95 | zbati = intarr(ifreq) |
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96 | zbati2 = intarr(irest) |
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97 | ;; |
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98 | zbat = intarr(jpiglo,jpjglo) |
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99 | ; |
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100 | readf, iunit, FORMAT = '(16x,2i8)', iim, ijm |
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101 | readf, iunit, FORMAT = '(/)' |
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102 | readf, iunit, FORMAT = '(/)' |
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103 | il1 = 0 |
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104 | FOR jn = 1, ifin-1 DO BEGIN |
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105 | readf, iunit, FORMAT = '(/)' |
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106 | readf, iunit, FORMAT = '(/)' |
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107 | il2 = min([ jpiglo-1, il1+ifreq-1] ) |
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108 | readf, iunit, FORMAT = '(/)' |
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109 | readf, iunit, FORMAT = '(/)' |
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110 | readf, iunit, FORMAT = '(/)' |
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111 | il3 = il2-(jn-1)*ifreq |
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112 | iformat = string('(', il3+2, 'i3)') |
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113 | FOR jj = jpjglo-1, 0, -1 DO BEGIN |
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114 | zbati(0:ifreq-1) = 0 |
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115 | readf, iunit, FORMAT = iformat, ij, zbati |
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116 | zbat(il1:il2, jj) = zbati(0:il3) |
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117 | END |
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118 | il1 = il1 + ifreq |
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119 | END |
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120 | readf, iunit, FORMAT = '(/)' |
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121 | readf, iunit, FORMAT = '(/)' |
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122 | il2 = min([ jpiglo-1, il1+ifreq-1] ) |
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123 | readf, iunit, FORMAT = '(/)' |
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124 | readf, iunit, FORMAT = '(/)' |
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125 | readf, iunit, FORMAT = '(/)' |
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126 | il3 = il2-(ifin-1)*ifreq |
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127 | iformat = string('(', il3+2, 'i3)') |
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128 | FOR jj = jpjglo-1, 0, -1 DO BEGIN |
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129 | zbati2(0:irest-1) = 0 |
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130 | readf, iunit, FORMAT = iformat, ij, zbati2 |
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131 | zbat(il1:il2, jj) = zbati2(0:il3) |
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132 | END |
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133 | ;; |
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134 | ;--------------------------------------------------------------------- |
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135 | ; on initialise les ixmindta, iymindta au besoin |
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136 | ;--------------------------------------------------------------------- |
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137 | ;; |
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138 | ixmindta = 0 |
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139 | ixmaxdta = jpiglo-1 |
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140 | iymindta = 0 |
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141 | iymaxdta = jpjglo-1 |
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142 | izmindta = 0 |
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143 | izmaxdta = jpkglo-1 |
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144 | ;--------------------------------------------------------------------- |
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145 | ; on reduit z selon les valeurs de ixmindta, iymindta, ...+ shift |
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146 | ;--------------------------------------------------------------------- |
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147 | z = zbat[ixminmesh-ixmindta:ixmaxmesh-ixmindta $ |
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148 | ,iyminmesh-iymindta:iymaxmesh-iymindta ] |
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149 | z = shift(z,key_shift, 0) |
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150 | ;--------------------------------------------------------------------- |
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151 | IF n_elements(nbathys) EQ 0 THEN BEGIN |
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152 | nbathys = 1 |
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153 | a = z*0 |
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154 | bathy_read = {name: '', mask:a} |
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155 | bathy_read = replicate(bathy_read, 4) |
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156 | bathy_read[0].name = bathy |
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157 | bathy_read[0].mask = z |
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158 | ENDIF ELSE BEGIN |
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159 | IF nbathys LE 3 THEN BEGIN |
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160 | nbathys = nbathys + 1 |
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161 | ENDIF ELSE BEGIN |
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162 | nbathys = 1 |
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163 | ENDELSE |
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164 | bathy_read[nbathys-1].name = bathy |
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165 | bathy_read[nbathys-1].mask = z |
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166 | ENDELSE |
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167 | |
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168 | ;--------------------------------------------------------------------- |
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169 | fini: |
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170 | free_lun,iunit |
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171 | close, iunit |
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172 | ;--------------------------------------------------------------------- |
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173 | sortie: |
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174 | zbat = z |
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175 | IF keyword_set(D3) THEN BEGIN |
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176 | zbat = 0 > zbat |
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177 | ; Build 3D from pseudo 3D |
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178 | zbat=reform(zbat[*]#(1./(indgen(jpkglo)+1)),(size(zbat))[1],(size(zbat))[2], jpkglo) |
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179 | zbat=floor(zbat)<1 |
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180 | ENDIF ELSE BEGIN |
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181 | zbat = zbat < 1 |
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182 | ENDELSE |
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183 | return, zbat |
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184 | ENDIF |
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185 | END |
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