[2] | 1 | ;+ |
---|
[231] | 2 | ; |
---|
[150] | 3 | ; @file_comments |
---|
| 4 | ; Reading function for the file net_cdf. |
---|
[226] | 5 | ; This program is less universal than ncdf_lec (it appeal to declared |
---|
[150] | 6 | ; variables in common.pro) but it is very easier to be used. It considerate |
---|
| 7 | ; the declaration of the different zooms which have been defined |
---|
| 8 | ; (ixminmesh...premierx...), the declaration of the variable key_shift... |
---|
| 9 | ; To put it in a nutshell, the result of read_ncdf can be directly used in plt... |
---|
[226] | 10 | ; This is also this program which is used by default in our reading widgets. |
---|
[2] | 11 | ; |
---|
[150] | 12 | ; @categories |
---|
[157] | 13 | ; Reading |
---|
[226] | 14 | ; |
---|
[163] | 15 | ; @param NAME {in}{required}{type=string} |
---|
| 16 | ; It define the field to be read. |
---|
[2] | 17 | ; |
---|
[150] | 18 | ; @param BEGINNING {in}{required} |
---|
| 19 | ; Relative with the time axis. |
---|
| 20 | ; These can be |
---|
[226] | 21 | ; - 2 date of the type yyyymmdd and in this case, we select dates |
---|
[150] | 22 | ; which are included between these two dates. |
---|
[226] | 23 | ; - 2 indexes which define between which and which time step we have |
---|
[163] | 24 | ; to extract the temporal dimension. |
---|
[2] | 25 | ; |
---|
[150] | 26 | ; @param ENDING {in}{required} |
---|
| 27 | ; Relative with the time axis. |
---|
| 28 | ; See BEGINNING. |
---|
[226] | 29 | ; |
---|
[174] | 30 | ; @param COMPATIBILITY {in}{optional} |
---|
| 31 | ; Useless, defined for compatibility |
---|
[226] | 32 | ; |
---|
[271] | 33 | ; @keyword ADDSCL_BEFORE {default=0}{type=scalar: 0 or 1} |
---|
| 34 | ; put 1 to apply add_offset ad scale factor on data before looking for |
---|
| 35 | ; missing values |
---|
| 36 | ; |
---|
[226] | 37 | ; @keyword BOXZOOM |
---|
| 38 | ; Contain the boxzoom on which we have to do the reading |
---|
| 39 | ; |
---|
[174] | 40 | ; @keyword CALLITSELF {default=0}{type=scalar: 0 or 1} |
---|
| 41 | ; For ROMS outputs. Use by read_ncdf itself to access auxilliary data (h and zeta). |
---|
[226] | 42 | ; |
---|
[174] | 43 | ; @keyword FILENAME {required}{type=string} |
---|
[163] | 44 | ; It contains he file's name. |
---|
[226] | 45 | ; |
---|
[174] | 46 | ; @keyword INIT {default=0}{type=scalar: 0 or 1} |
---|
[271] | 47 | ; To call automatically initncdf with filename as input argument and thus |
---|
[150] | 48 | ; redefine all the grid parameters |
---|
[226] | 49 | ; |
---|
[150] | 50 | ; @keyword GRID |
---|
[163] | 51 | ; ='[UTVWF]' to specify the type of grid. Default is (1) |
---|
[150] | 52 | ; based on the name of the file if the file ends by |
---|
| 53 | ; GRID[._][TUVFW].NC (not case sensible) or (2) T if case (1) |
---|
| 54 | ; is not found. |
---|
[226] | 55 | ; |
---|
[174] | 56 | ; @keyword TIMESTEP {default=0}{type=scalar: 0 or 1} |
---|
| 57 | ; Specify that BEGINNING and ENDING refer to indexes of the time axis and not to dates |
---|
[2] | 58 | ; |
---|
[174] | 59 | ; @keyword TOUT {default=0}{type=scalar: 0 or 1} |
---|
[226] | 60 | ; We activate it if we want to read the file on the whole domain without |
---|
| 61 | ; considerate the sub-domain defined by the boxzoom or |
---|
[150] | 62 | ; lon1,lon2,lat1,lat2,vert1,vert2. |
---|
[226] | 63 | ; |
---|
[174] | 64 | ; @keyword NOSTRUCT {default=0}{type=scalar: 0 or 1} |
---|
[226] | 65 | ; We activate it if we do not want that read_ncdf send back a structure |
---|
[163] | 66 | ; but only the array referring to the field. |
---|
[226] | 67 | ; |
---|
[174] | 68 | ; @keyword ZETAFILENAME {default=FILENAME}{type=string} |
---|
[238] | 69 | ; For ROMS outputs. The filename of the file where zeta variable should be read |
---|
[174] | 70 | ; |
---|
| 71 | ; @keyword ZETAZERO {default=0}{type=scalar: 0 or 1} |
---|
| 72 | ; For ROMS outputs. To define zeta to 0. instead of reading it |
---|
| 73 | ; |
---|
[150] | 74 | ; @keyword _EXTRA |
---|
[271] | 75 | ; Used to pass keywords to <pro>isafile</pro>, <pro>initncdf</pro>, |
---|
| 76 | ; <pro>ncdf_gettime</pro> and <pro>domdef</pro> |
---|
[2] | 77 | ; |
---|
[150] | 78 | ; @returns |
---|
[231] | 79 | ; Structure readable by <pro>litchamp</pro> or an array if NOSTRUCT is activated. |
---|
[226] | 80 | ; |
---|
[150] | 81 | ; @uses |
---|
| 82 | ; common.pro |
---|
[226] | 83 | ; |
---|
[150] | 84 | ; @restrictions |
---|
| 85 | ; The field must have a temporal dimension. |
---|
[226] | 86 | ; |
---|
[150] | 87 | ; @history |
---|
[157] | 88 | ; Sebastien Masson (smasson\@lodyc.jussieu.fr) |
---|
[226] | 89 | ; 15/10/1999 |
---|
| 90 | ; |
---|
[150] | 91 | ; @version |
---|
[226] | 92 | ; $Id$ |
---|
[2] | 93 | ;- |
---|
[231] | 94 | ; |
---|
[150] | 95 | FUNCTION read_ncdf, name, beginning, ending, compatibility, BOXZOOM = boxzoom, FILENAME = filename $ |
---|
[271] | 96 | , PARENTIN = parentin, TIMESTEP = timestep, ADDSCL_BEFORE = addscl_before $ |
---|
[44] | 97 | , TOUT = tout, NOSTRUCT = nostruct, CONT_NOFILL = CONT_NOFILL, INIT = init $ |
---|
[209] | 98 | , GRID = grid, CALLITSELF = callitself $ |
---|
[192] | 99 | , ZETAFILENAME = zetafilename, ZETAZERO = zetazero $ |
---|
[174] | 100 | , _EXTRA = ex |
---|
[114] | 101 | ; |
---|
| 102 | compile_opt idl2, strictarrsubs |
---|
| 103 | ; |
---|
[44] | 104 | @cm_4mesh |
---|
| 105 | @cm_4data |
---|
| 106 | @cm_4cal |
---|
| 107 | IF NOT keyword_set(key_forgetold) THEN BEGIN |
---|
| 108 | @updatenew |
---|
| 109 | @updatekwd |
---|
| 110 | ENDIF |
---|
[2] | 111 | ;------------------------------------------------------------ |
---|
| 112 | ; we find the filename. |
---|
| 113 | ;------------------------------------------------------------ |
---|
[226] | 114 | ; print,filename |
---|
[2] | 115 | ; is parent a valid widget ? |
---|
[271] | 116 | IF keyword_set(parentin) THEN BEGIN |
---|
[44] | 117 | parent = long(parentin) |
---|
| 118 | parent = parent*widget_info(parent, /managed) |
---|
| 119 | ENDIF |
---|
| 120 | filename = isafile(filename = filename, IODIRECTORY = iodir, _EXTRA = ex) |
---|
[2] | 121 | ;------------------------------------------------------------ |
---|
[150] | 122 | ; Opening of the name file |
---|
[2] | 123 | ;------------------------------------------------------------ |
---|
[271] | 124 | IF size(filename, /type) NE 7 THEN $ |
---|
[2] | 125 | return, report('read_ncdf cancelled') |
---|
[44] | 126 | IF !version.OS_FAMILY EQ 'unix' THEN spawn, '\file '+filename+' > /dev/null' |
---|
| 127 | cdfid = ncdf_open(filename) |
---|
[271] | 128 | inq = ncdf_inquire(cdfid) |
---|
[2] | 129 | ;------------------------------------------------------------ |
---|
| 130 | ; we check if the variable name exists in the file. |
---|
| 131 | ;------------------------------------------------------------ |
---|
[271] | 132 | IF ncdf_varid(cdfid, name) EQ -1 THEN BEGIN |
---|
[44] | 133 | ncdf_close, cdfid |
---|
[2] | 134 | return, report('variable '+name+' !C not found in the file '+filename) |
---|
[44] | 135 | ENDIF |
---|
[271] | 136 | varinq = ncdf_varinq(cdfid, name) |
---|
| 137 | IF varinq.ndims LT 2 THEN return, report('read_ncdf cannot read scalar or 1D data') |
---|
[172] | 138 | ; look for the dimension names |
---|
[271] | 139 | dimnames = strarr(varinq.ndims) |
---|
| 140 | FOR i = 0, varinq.ndims-1 DO BEGIN |
---|
| 141 | ncdf_diminq, cdfid, varinq.dim[i], tmp, dimsize |
---|
[172] | 142 | dimnames[i] = tmp |
---|
[226] | 143 | ENDFOR |
---|
[2] | 144 | ;------------------------------------------------------------ |
---|
[44] | 145 | ; shall we redefine the grid parameters |
---|
| 146 | ;------------------------------------------------------------ |
---|
[271] | 147 | IF keyword_set(init) THEN initncdf, filename, _extra = ex |
---|
[44] | 148 | ;------------------------------------------------------------ |
---|
[150] | 149 | ; check the time axis and the debut and ending dates |
---|
[2] | 150 | ;------------------------------------------------------------ |
---|
[271] | 151 | IF n_elements(beginning) EQ 0 THEN BEGIN |
---|
[150] | 152 | beginning = 0 |
---|
[44] | 153 | timestep = 1 |
---|
[271] | 154 | ENDIF |
---|
| 155 | ; define time and jpt |
---|
| 156 | CASE 1 OF |
---|
| 157 | keyword_set(timestep):BEGIN |
---|
| 158 | firsttps = beginning[0] |
---|
| 159 | IF n_elements(ending) NE 0 THEN lasttps = ending[0] ELSE lasttps = firsttps |
---|
| 160 | jpt = lasttps-firsttps+1 |
---|
| 161 | IF NOT keyword_set(callitself) then time = julday(1, 1, 1) + lindgen(jpt) |
---|
| 162 | END |
---|
| 163 | keyword_set(parent):BEGIN |
---|
[44] | 164 | widget_control, parent, get_uvalue = top_uvalue |
---|
| 165 | filelist = extractatt(top_uvalue, 'filelist') |
---|
| 166 | IF filelist[0] EQ 'many !' THEN filelist = filename |
---|
| 167 | currentfile = (where(filelist EQ filename))[0] |
---|
| 168 | time = (*(extractatt(top_uvalue, 'fileparameters'))[currentfile]).time_counter |
---|
[150] | 169 | date1 = date2jul(beginning[0]) |
---|
| 170 | if n_elements(ending) NE 0 then date2 = date2jul(ending[0]) ELSE date2 = date1 |
---|
[271] | 171 | firsttps = (where(abs(time - date1) LT 0.9d/86400.d))[0] ; beware of rounding errors... |
---|
| 172 | lasttps = (where(abs(time - date2) LT 0.9d/86400.d))[0] |
---|
| 173 | jpt = lasttps-firsttps+1 |
---|
| 174 | END |
---|
| 175 | ELSE:BEGIN |
---|
| 176 | time = ncdf_gettime(filename, cdfid, caller = 'read_ncdf', err = err, _extra = ex) |
---|
| 177 | IF n_elements(err) NE 0 THEN BEGIN |
---|
| 178 | dummy = report(err) |
---|
[44] | 179 | ncdf_close, cdfid |
---|
[271] | 180 | return, -1 |
---|
[44] | 181 | ENDIF |
---|
[271] | 182 | ; date1 |
---|
[150] | 183 | date1 = date2jul(beginning[0]) |
---|
[271] | 184 | ; date2 |
---|
[150] | 185 | if n_elements(ending) NE 0 then date2 = date2jul(ending[0]) ELSE date2 = date1 |
---|
[271] | 186 | ; firsttps |
---|
| 187 | firsttps = where(time GE (date1 - 0.9d/86400.d)) & firsttps = firsttps[0] |
---|
[44] | 188 | if firsttps EQ -1 THEN BEGIN |
---|
| 189 | ncdf_close, cdfid |
---|
| 190 | return, report('date 1: '+strtrim(jul2date(date1), 1)+' is not found in the time axis.') |
---|
[74] | 191 | ENDIF |
---|
[271] | 192 | ; lasttps |
---|
| 193 | lasttps = where(time LE (date2 + 0.9d/86400.d)) & lasttps = lasttps[n_elements(lasttps)-1] |
---|
| 194 | if lasttps EQ -1 THEN BEGIN |
---|
[44] | 195 | ncdf_close, cdfid |
---|
[198] | 196 | return, report('the time axis has no date before date 2: '+strtrim(jul2date(date2), 1)) |
---|
[44] | 197 | endif |
---|
| 198 | if lasttps LT firsttps then BEGIN |
---|
| 199 | ncdf_close, cdfid |
---|
[198] | 200 | return, report('the time axis has no dates between date1 and date 2: '+strtrim(jul2date(date1), 1)+' '+strtrim(jul2date(date2), 1)) |
---|
[44] | 201 | endif |
---|
[271] | 202 | time = time[firsttps:lasttps] |
---|
| 203 | jpt = lasttps-firsttps+1 |
---|
| 204 | END |
---|
| 205 | ENDCASE |
---|
[2] | 206 | ;------------------------------------------------------------ |
---|
[150] | 207 | ; Name of the grid on which the field refer to. |
---|
[2] | 208 | ;------------------------------------------------------------ |
---|
[44] | 209 | IF keyword_set(grid) THEN vargrid = strupcase(grid) ELSE BEGIN |
---|
| 210 | vargrid = 'T' ; default definition |
---|
[69] | 211 | IF finite(glamu[0]) EQ 1 THEN BEGIN |
---|
[172] | 212 | ; are we in one of the case corresponding to ROMS conventions? |
---|
| 213 | CASE 1 OF |
---|
[271] | 214 | dimnames[2 <(varinq.ndims-1)] EQ 's_w':vargrid = 'W' |
---|
[172] | 215 | dimnames[0] EQ 'xi_rho' AND dimnames[1] EQ 'eta_rho':vargrid = 'T' |
---|
| 216 | dimnames[0] EQ 'xi_u' AND dimnames[1] EQ 'eta_u' :vargrid = 'U' |
---|
| 217 | dimnames[0] EQ 'xi_v' AND dimnames[1] EQ 'eta_v' :vargrid = 'V' |
---|
| 218 | dimnames[0] EQ 'xi_psi' AND dimnames[1] EQ 'eta_psi':vargrid = 'F' |
---|
| 219 | dimnames[0] EQ 'xi_rho' AND dimnames[1] EQ 'eta_v' :vargrid = 'V' |
---|
| 220 | dimnames[0] EQ 'xi_u' AND dimnames[1] EQ 'eta_rho':vargrid = 'U' |
---|
| 221 | dimnames[0] EQ 'xi_u' AND dimnames[1] EQ 'eta_v' :vargrid = 'F' |
---|
[226] | 222 | ELSE:BEGIN |
---|
[172] | 223 | ; could we define the grid type from the file name?? |
---|
| 224 | pattern = ['GRID.', 'GRID_', 'GRID', 'UPID_', '30ID_'] |
---|
| 225 | gdtype = ['T', 'U', 'V', 'W', 'F'] |
---|
| 226 | fnametest = strupcase(filename) |
---|
| 227 | FOR i = 0, n_elements(pattern)-1 DO BEGIN |
---|
| 228 | FOR j = 0, n_elements(gdtype)-1 DO BEGIN |
---|
| 229 | substr = pattern[i]+gdtype[j] |
---|
| 230 | pos = strpos(fnametest, substr) |
---|
| 231 | IF pos NE -1 THEN $ |
---|
| 232 | vargrid = strmid(fnametest, pos+strlen(substr)-1, 1) |
---|
| 233 | ENDFOR |
---|
| 234 | ENDFOR |
---|
| 235 | END |
---|
| 236 | ENDCASE |
---|
| 237 | ENDIF |
---|
[44] | 238 | ENDELSE |
---|
[2] | 239 | ;--------------------------------------------------------------- |
---|
[150] | 240 | ; redefinition of the domain |
---|
[2] | 241 | ;--------------------------------------------------------------- |
---|
[271] | 242 | IF keyword_set(tout) THEN BEGIN |
---|
[44] | 243 | nx = jpi |
---|
| 244 | ny = jpj |
---|
| 245 | nz = jpk |
---|
| 246 | firstx = 0 |
---|
| 247 | firsty = 0 |
---|
| 248 | firstz = 0 |
---|
| 249 | lastx = jpi-1 |
---|
| 250 | lasty = jpj-1 |
---|
| 251 | lastz = jpk-1 |
---|
| 252 | case strupcase(vargrid) of |
---|
| 253 | 'T':mask = tmask |
---|
| 254 | 'U':mask = umask() |
---|
| 255 | 'V':mask = vmask() |
---|
| 256 | 'W':mask = tmask |
---|
| 257 | 'F':mask = fmask() |
---|
| 258 | endcase |
---|
| 259 | ENDIF ELSE BEGIN |
---|
[226] | 260 | if keyword_set(boxzoom) then BEGIN |
---|
[44] | 261 | Case 1 Of |
---|
| 262 | N_Elements(Boxzoom) Eq 1:bte = [lon1, lon2, lat1, lat2, 0., boxzoom[0]] |
---|
| 263 | N_Elements(Boxzoom) Eq 2:bte = [lon1, lon2, lat1, lat2, boxzoom[0], boxzoom[1]] |
---|
| 264 | N_Elements(Boxzoom) Eq 4:bte = [Boxzoom, vert1, vert2] |
---|
| 265 | N_Elements(Boxzoom) Eq 5:bte = [Boxzoom[0:3], 0, Boxzoom[4]] |
---|
| 266 | N_Elements(Boxzoom) Eq 6:bte = Boxzoom |
---|
| 267 | Else: BEGIN |
---|
| 268 | ncdf_close, cdfid |
---|
| 269 | return, report('Wrong Definition of Boxzoom') |
---|
| 270 | end |
---|
| 271 | ENDCASE |
---|
| 272 | savedbox = 1b |
---|
| 273 | saveboxparam, 'boxparam4rdncdf.dat' |
---|
| 274 | domdef, bte, GRIDTYPE = ['T', vargrid], _extra = ex |
---|
| 275 | ENDIF |
---|
| 276 | grille, mask, glam, gphi, gdep, nx, ny, nz, firstx, firsty, firstz, lastx, lasty, lastz |
---|
[226] | 277 | undefine, glam & undefine, gphi & ; We liberate some memory! |
---|
[44] | 278 | ENDELSE |
---|
[2] | 279 | ;--------------------------------------------------------------------- |
---|
[150] | 280 | ; We initializate ixmindta, iymindta if needed |
---|
[2] | 281 | ;--------------------------------------------------------------------- |
---|
[44] | 282 | if n_elements(jpidta) EQ 0 THEN jpidta = jpiglo |
---|
| 283 | if n_elements(jpjdta) EQ 0 THEN jpjdta = jpjglo |
---|
| 284 | if n_elements(jpkdta) EQ 0 THEN jpkdta = jpkglo |
---|
| 285 | if n_elements(ixmindta) EQ 0 THEN ixmindta = 0 |
---|
| 286 | if n_elements(ixmaxdta) EQ 0 then ixmaxdta = jpidta-1 |
---|
| 287 | if ixmindta EQ -1 THEN ixmindta = 0 |
---|
| 288 | IF ixmaxdta EQ -1 then ixmaxdta = jpidta-1 |
---|
| 289 | if n_elements(iymindta) EQ 0 THEN iymindta = 0 |
---|
| 290 | IF n_elements(iymaxdta) EQ 0 then iymaxdta = jpjdta-1 |
---|
| 291 | if iymindta EQ -1 THEN iymindta = 0 |
---|
| 292 | IF iymaxdta EQ -1 then iymaxdta = jpjdta-1 |
---|
| 293 | if n_elements(izmindta) EQ 0 THEN izmindta = 0 |
---|
| 294 | IF n_elements(izmaxdta) EQ 0 then izmaxdta = jpkdta-1 |
---|
| 295 | if izmindta EQ -1 THEN izmindta = 0 |
---|
| 296 | IF izmaxdta EQ -1 then izmaxdta = jpkdta-1 |
---|
[2] | 297 | ;---------------------------------------------------------------- |
---|
[150] | 298 | ; We will read the file |
---|
[2] | 299 | ;--------------------------------------------------------------- |
---|
[44] | 300 | if n_elements(key_stride) LE 2 then key_stride = [1, 1, 1] |
---|
| 301 | key_stride = 1l > long(key_stride) |
---|
| 302 | ;--------------------------------------------------------------------- |
---|
| 303 | ;--------------------------------------------------------------------- |
---|
[2] | 304 | @read_ncdf_varget |
---|
| 305 | ;--------------------------------------------------------------------- |
---|
[44] | 306 | ;--------------------------------------------------------------------- |
---|
[271] | 307 | ; We define common (cm_4data) variables associated with the variable. |
---|
[2] | 308 | ;--------------------------------------------------------------------- |
---|
| 309 | ; varname |
---|
[172] | 310 | IF NOT keyword_set(callitself) THEN varname = name |
---|
[271] | 311 | ; varunit and others... |
---|
| 312 | ncdf_getatt, cdfid, name, add_offset = add_offset, scale_factor = scale_factor, missing_value = missing_value, units = units |
---|
| 313 | IF NOT keyword_set(callitself) THEN varunit = units |
---|
[2] | 314 | ; vardate |
---|
[150] | 315 | ; We make a legible date in function of the specified language. |
---|
| 316 | year = long(beginning[0])/10000 |
---|
| 317 | month = (long(beginning[0])/100) MOD 100 |
---|
| 318 | day = (long(beginning[0]) MOD 100) |
---|
[44] | 319 | vardate = string(format = '(C(CMoA))', 31*(month-1))+' '+strtrim(day, 1)+', '+strtrim(year, 1) |
---|
[74] | 320 | varexp = file_basename(filename) |
---|
[44] | 321 | |
---|
[150] | 322 | ; We apply the value valmask on land points. |
---|
[44] | 323 | if NOT keyword_set(cont_nofill) then begin |
---|
[271] | 324 | valmask = 1.e20 |
---|
[44] | 325 | case 1 of |
---|
[275] | 326 | varinq.ndims eq 2: earth = where(mask[*, *, 0] EQ 0) ;xy array |
---|
| 327 | varinq.ndims eq 3 AND (where(varinq.dim EQ inq.recdim))[0] EQ -1:earth = where(mask EQ 0) ;xyz array |
---|
| 328 | varinq.ndims eq 3 AND (where(varinq.dim EQ inq.recdim))[0] NE -1:earth = where(mask[*, *, 0] EQ 0) ;xyt array |
---|
| 329 | varinq.ndims eq 4: earth = where(mask EQ 0) ;xyzt array |
---|
[271] | 330 | ENDCASE |
---|
[44] | 331 | ENDIF ELSE earth = -1 |
---|
| 332 | ; we look for missing_value |
---|
[271] | 333 | ; we apply add_offset, scale_factor and missing_value |
---|
| 334 | IF keyword_set(addscl_before) THEN BEGIN |
---|
[275] | 335 | IF scale_factor NE 1 THEN res = temporary(res)*scale_factor |
---|
| 336 | IF add_offset NE 0 THEN res = temporary(res)+add_offset |
---|
[271] | 337 | ENDIF |
---|
[275] | 338 | IF size(missing_value, /type) NE 7 THEN BEGIN |
---|
[271] | 339 | IF finite(missing_value) EQ 1 THEN BEGIN |
---|
| 340 | CASE 1 OF |
---|
| 341 | missing_value GT 1.e6:missing = where(res GT missing_value-10.) |
---|
| 342 | missing_value LT -1.e6:missing = where(res LT missing_value+10.) |
---|
| 343 | abs(missing_value) LT 1.e-6:missing = where(res LT 1.e-6) |
---|
| 344 | ELSE:missing = where(res EQ missing_value) |
---|
| 345 | ENDCASE |
---|
| 346 | ENDIF ELSE missing = where(finite(res) EQ 0) |
---|
[44] | 347 | ENDIF ELSE missing = -1 |
---|
[271] | 348 | IF NOT keyword_set(addscl_before) THEN BEGIN |
---|
| 349 | if scale_factor NE 1 then res = temporary(res)*scale_factor |
---|
| 350 | if add_offset NE 0 then res = temporary(res)+add_offset |
---|
| 351 | ENDIF |
---|
[275] | 352 | IF missing[0] NE -1 THEN res[temporary(missing)] = !values.f_nan |
---|
| 353 | IF earth[0] NE -1 THEN BEGIN |
---|
| 354 | IF varinq.ndims eq 3 AND (where(varinq.dim EQ inq.recdim))[0] NE -1 THEN $ ;xyt array |
---|
| 355 | earth = earth#replicate(1, jpt)+replicate(nx*ny, n_elements(earth))#lindgen(jpt) |
---|
| 356 | IF varinq.ndims eq 4 THEN earth = earth#replicate(1, jpt)+replicate(nx*ny*nz, n_elements(earth))#lindgen(jpt) |
---|
| 357 | res[temporary(earth)] = 1.e20 |
---|
| 358 | ENDIF |
---|
[2] | 359 | ;--------------------------------------------------------------------- |
---|
[172] | 360 | ; if it is roms outputs, we need to get additionals infos... |
---|
| 361 | IF NOT keyword_set(callitself) THEN BEGIN |
---|
| 362 | IF strmid(dimnames[0], 0, 3) EQ 'xi_' AND strmid(dimnames[1], 0, 4) EQ 'eta_' THEN BEGIN |
---|
| 363 | ncdf_attget, cdfid, 'theta_s', theta_s, /global |
---|
| 364 | ncdf_attget, cdfid, 'theta_b', theta_b, /global |
---|
| 365 | ncdf_attget, cdfid, 'hc', hc, /global |
---|
[174] | 366 | ; look for all variables names |
---|
[271] | 367 | allvarnames = strarr(inq.nvars) |
---|
| 368 | FOR i = 0, inq.nvars-1 DO BEGIN |
---|
[174] | 369 | tmp = ncdf_varinq( cdfid, i) |
---|
| 370 | allvarnames[i] = tmp.name |
---|
| 371 | ENDFOR |
---|
| 372 | CASE 1 OF |
---|
| 373 | keyword_set(zetazero):zeta = fltarr(nx, ny, jpt) |
---|
| 374 | keyword_set(zetafilename): $ |
---|
| 375 | zeta = read_ncdf('zeta', firsttps, lasttps, FILENAME = zetafilename $ |
---|
| 376 | , /TIMESTEP, /NOSTRUCT, CONT_NOFILL = CONT_NOFILL $ |
---|
| 377 | , GRID = vargrid, /CALLITSELF, _EXTRA = ex) |
---|
[181] | 378 | (where(allvarnames EQ 'zeta'))[0] NE -1: $ |
---|
[174] | 379 | zeta = read_ncdf('zeta', firsttps, lasttps, FILENAME = filename $ |
---|
| 380 | , /TIMESTEP, /NOSTRUCT, CONT_NOFILL = CONT_NOFILL $ |
---|
| 381 | , GRID = vargrid, /CALLITSELF, _EXTRA = ex) |
---|
| 382 | ELSE:return, report('The variable zeta was not found in the file, please use the keyword ZETAFILENAME to specify the name of a file containing zeta or use keyword ZETAZERO to define zeta to 0.') |
---|
| 383 | ENDCASE |
---|
[192] | 384 | romszinfos = {h:romszinfos.h, zeta:temporary(zeta), theta_s:theta_s, theta_b:theta_b, hc:hc} |
---|
[172] | 385 | ENDIF ELSE romszinfos = {h:-1, zeta:-1, theta_s:-1, theta_b:-1, hc:-1} |
---|
| 386 | ENDIF |
---|
| 387 | ;--------------------------------------------------------------------- |
---|
[44] | 388 | ncdf_close, cdfid |
---|
[172] | 389 | |
---|
| 390 | IF keyword_set(savedbox) THEN restoreboxparam, 'boxparam4rdncdf.dat' |
---|
| 391 | |
---|
| 392 | IF keyword_set(nostruct) THEN return, res |
---|
| 393 | IF keyword_set(key_forgetold) THEN BEGIN |
---|
[226] | 394 | return, {arr:temporary(res), grid:vargrid, unit:varunit, experiment:varexp, name:varname} |
---|
| 395 | ENDIF ELSE BEGIN |
---|
[172] | 396 | return, {tab:temporary(res), grille:vargrid, unite:varunit, experience:varexp, nom:varname} |
---|
| 397 | ENDELSE |
---|
| 398 | |
---|
[44] | 399 | END |
---|