#!/usr/bin/env python ### A. Spiga -- LMD -- 30/06/2011 to 10/07/2011 ### Thanks to A. Colaitis for the parser trick #################################### #################################### ### The main program to plot vectors def winds (namefile,\ nvert,\ proj=None,\ back=None,\ target=None, stride=3,\ numplot=2,\ var=None,\ colorb=True,\ winds=True,\ addchar=None,\ interv=[0,1],\ vmin=None,\ vmax=None,\ tile=False,\ zoom=None,\ display=True,\ itstep=None): #################################################################################################################### ### Colorbars http://www.scipy.org/Cookbook/Matplotlib/Show_colormaps?action=AttachFile&do=get&target=colormaps3.png ################################# ### Load librairies and functions from netCDF4 import Dataset from myplot import getcoord2d,define_proj,makeplotpng,makeplotpngres,simplinterv,vectorfield,ptitle,latinterv,getproj,wrfinterv,dumpbdy,\ fmtvar,definecolorvec,defcolorb,getprefix,putpoints,calculate_bounds,errormess,definesubplot,\ zoomset,getcoorddef,getwinddef,whatkindfile,reducefield,bounds,getstralt,getfield from mymath import deg,max,min,mean from matplotlib.pyplot import contour,contourf, subplot, figure, rcParams, savefig, colorbar, pcolor from matplotlib.cm import get_cmap import numpy as np from numpy.core.defchararray import find ###################### ### Load NETCDF object nc = Dataset(namefile) ################################## ### Initial checks and definitions typefile = whatkindfile(nc) ## TYPEFILE if var not in nc.variables: var = False ## VAR if winds: [uchar,vchar,metwind] = getwinddef(nc) ## WINDS if uchar == 'not found': winds = False [lon2d,lat2d] = getcoorddef(nc) ## COORDINATES, could be moved below if proj == None: proj = getproj(nc) ## PROJECTION ########################## ### Define plot boundaries if proj == "npstere": [wlon,wlat] = latinterv("North_Pole") elif proj in ["lcc","laea"]: [wlon,wlat] = wrfinterv(lon2d,lat2d) else: [wlon,wlat] = simplinterv(lon2d,lat2d) if zoom: [wlon,wlat] = zoomset(wlon,wlat,zoom) ######################################### ### Name for title and graphics save file if var and winds: basename = var + '_UV' elif var: basename = var elif winds: basename = 'UV' else: print nc.variables errormess("please set at least winds or var") basename = basename + getstralt(nc,nvert) ## can be moved elsewhere for a more generic routine ################################## ### Open a figure and set subplots fig = figure() sub = definesubplot( numplot, fig ) ################################# ### Time loop for plotting device found_lct = False itime = 0 ## could be an argument nplot = 1 error = False if itstep is None: itstep = int(24./numplot) while error is False: ### Which local time ? #print interv[0], interv[1], itime ltst = ( interv[0] + 0.5*(wlon[0]+wlon[1])/15.) + itime*interv[1] ltst = int (ltst * 10) / 10. ltst = ltst % 24 ### General plot settings #print itime, int(ltst), numplot, nplot if numplot >= 1: if nplot > numplot: break if numplot > 1: if typefile not in ['geo']: subplot(sub+nplot-1) found_lct = True ### If only one local time is requested (numplot < 0) elif numplot <= 0: if int(ltst) + numplot != 0: itime += 1 if found_lct is True: break ## because it means LT was found at previous iteration else: continue ## continue to iterate to find the correct LT else: found_lct = True ### Map projection m = define_proj(proj,wlon,wlat,back=back) x, y = m(lon2d, lat2d) #### Contour plot if var: what_I_plot, error = reducefield( getfield(nc,var), d4=itime, d3=nvert ) if not error: if typefile in ['mesoapi','meso']: what_I_plot = dumpbdy(what_I_plot) zevmin, zevmax = calculate_bounds(what_I_plot,vmin=vmin,vmax=vmax) if colorb is True: colorb = defcolorb(var) palette = get_cmap(name=colorb) if not tile: if var in ["TAU_ICE","ICETOT"]: hole = True #nice plots with vis img if not hole: what_I_plot = bounds(what_I_plot,zevmin,zevmax) zelevels = np.linspace(zevmin,zevmax) contourf( x, y, what_I_plot, zelevels, cmap = palette ) else: pcolor( x, y, what_I_plot, cmap = palette, vmin=zevmin, vmax=zevmax ) #putpoints(m,fig) if var in ['HGT']: pass elif colorb: ndiv = 10 colorbar(fraction=0.05,pad=0.1,format=fmtvar(var),\ ticks=np.linspace(zevmin,zevmax,ndiv+1),\ extend='max',spacing='proportional') # both min max neither ### Vector plot if winds: vecx, error = reducefield( getfield(nc,uchar), d4=itime, d3=nvert ) vecy, error = reducefield( getfield(nc,vchar), d4=itime, d3=nvert ) if not error: if typefile in ['mesoapi','meso']: [vecx,vecy] = [dumpbdy(vecx,stag=uchar), dumpbdy(vecy,stag=vchar)] key = True elif typefile in ['gcm']: key = False if metwind: [vecx,vecy] = m.rotate_vector(vecx, vecy, lon2d, lat2d) if var == False: colorvec = definecolorvec(back) else: colorvec = definecolorvec(colorb) vectorfield(vecx, vecy,\ x, y, stride=stride, csmooth=2,\ scale=15., factor=300., color=colorvec, key=key) #200. ## or csmooth=stride ### Next subplot plottitle = basename if typefile in ['mesoapi','meso']: if addchar: plottitle = plottitle + addchar + "_LT"+str(ltst) else: plottitle = plottitle + "_LT"+str(ltst) ptitle( plottitle ) itime += itstep nplot += 1 ########################################################################## ### Save the figure in a file in the data folder or an user-defined folder if typefile in ['meso','mesoapi']: prefix = getprefix(nc) elif typefile in ['gcm']: prefix = 'LMD_GCM_' else: prefix = '' ### zeplot = prefix + basename if addchar: zeplot = zeplot + addchar if numplot <= 0: zeplot = zeplot + "_LT"+str(abs(numplot)) ### if not target: zeplot = namefile[0:find(namefile,'wrfout')] + zeplot else: zeplot = target + "/" + zeplot ### #if found_lct: makeplotpng(zeplot,pad_inches_value=0.35,disp=display) if found_lct: makeplotpng(zeplot,disp=display) #if found_lct: makeplotpngres(zeplot,200,disp=display) else: print "Local time not found" ############### ### Now the end return zeplot ############################## ### A specific stuff for below def adjust_length (tab, zelen): from numpy import ones if tab is None: outtab = ones(zelen) * -999999 else: print zelen, len(tab) if zelen != len(tab): print "not enough or too much values... setting same values all variables" outtab = ones(zelen) * tab[0] else: outtab = tab return outtab ########################################################################################### ########################################################################################### ### What is below relate to running the file as a command line executable (very convenient) if __name__ == "__main__": import sys from optparse import OptionParser ### to be replaced by argparse from api_wrapper import api_onelevel from netCDF4 import Dataset from myplot import getlschar ############################# ### Get options and variables parser = OptionParser() parser.add_option('-f', action='append',dest='namefile', type="string", default=None, help='[NEEDED] name of WRF file (append)') parser.add_option('-l', action='store',dest='nvert', type="float", default=0, help='vertical level (def=0)(-i 2: p,mbar)(-i 3,4: z,km)') parser.add_option('-p', action='store',dest='proj', type="string", default=None, help='projection') parser.add_option('-b', action='store',dest='back', type="string", default=None, help='background image (def: None)') parser.add_option('-t', action='store',dest='target', type="string", default=None, help='destination folder') parser.add_option('-s', action='store',dest='stride', type="int", default=3, help='stride vectors (def=3)') parser.add_option('-v', action='append',dest='var', type="string", default=None, help='variable contoured (append)') parser.add_option('-n', action='store',dest='numplot', type="int", default=2, help='number of plots (def=1)(<0: 1 plot of LT -*numplot*)') parser.add_option('-i', action='store',dest='interp', type="int", default=None, help='interpolation method (2: press, 3: z-amr, 4:z-als)') parser.add_option('-c', action='store',dest='colorb', type="string", default=True, help='change colormap') parser.add_option('-x', action='store_false',dest='winds', default=True, help='no wind vectors') parser.add_option('-m', action='append',dest='vmin', type="float", default=None, help='bounding minimum value (append)') parser.add_option('-M', action='append',dest='vmax', type="float", default=None, help='bounding maximum value (append)') parser.add_option('-T', action='store_true',dest='tile', default=False, help='draw a tiled plot (no blank zone)') parser.add_option('-z', action='store',dest='zoom', type="float", default=None, help='zoom factor in %') parser.add_option('-N', action='store_true',dest='nocall', default=False, help='do not recreate api file') parser.add_option('-d', action='store_false',dest='display', default=True, help='do not pop up created images') parser.add_option('-e', action='store',dest='itstep', type="int", default=None, help='stride time (def=4)') #parser.add_option('-V', action='store', dest='comb', type="float", default=None, help='a defined combination of variables') (opt,args) = parser.parse_args() if opt.namefile is None: print "I want to eat one file at least ! Use winds.py -f name_of_my_file. Or type winds.py -h" exit() print "Options:", opt listvar = '' if opt.var is None: zerange = [-999999] else: zelen = len(opt.var) zerange = range(zelen) #if zelen == 1: listvar = opt.var[0] + ',' #else : for jjj in zerange: listvar += opt.var[jjj] + ',' listvar = listvar[0:len(listvar)-1] vmintab = adjust_length (opt.vmin, zelen) vmaxtab = adjust_length (opt.vmax, zelen) for i in range(len(opt.namefile)): zefile = opt.namefile[i] print zefile zelevel = opt.nvert stralt = None [lschar,zehour,zehourin] = getlschar ( zefile ) ## getlschar from wrfout (or simply return "" if another file) ##################################################### ### Call Fortran routines for vertical interpolations if opt.interp is not None: if opt.nvert is 0 and opt.interp is 4: zelevel = 0.010 ### winds or no winds if opt.winds : zefields = 'uvmet' else : zefields = '' ### var or no var #if opt.var is None : pass if zefields == '' : zefields = listvar else : zefields = zefields + "," + listvar print zefields zefile = api_onelevel ( path_to_input = '', \ input_name = zefile, \ #path_to_output = opt.target, \ fields = zefields, \ interp_method = opt.interp, \ onelevel = zelevel, \ nocall = opt.nocall ) print zefile zelevel = 0 ## so that zelevel could play again the role of nvert if opt.var is None: zerange = [-999999] else: zerange = range(zelen) for jjj in zerange: if jjj == -999999: argvar = None argvmin = None argvmax = None else: argvar = opt.var[jjj] if vmintab[jjj] != -999999: argvmin = vmintab[jjj] else: argvmin = None if vmaxtab[jjj] != -999999: argvmax = vmaxtab[jjj] else: argvmax = None ############# ### Main call name = winds (zefile,int(zelevel),\ proj=opt.proj,back=opt.back,target=opt.target,stride=opt.stride,var=argvar,\ numplot=opt.numplot,colorb=opt.colorb,winds=opt.winds,\ addchar=lschar,interv=[zehour,zehourin],vmin=argvmin,vmax=argvmax,\ tile=opt.tile,zoom=opt.zoom,display=opt.display,\ itstep=opt.itstep) print 'Done: '+name ######################################################### ### Generate a .sh file with the used command saved in it command = "" for arg in sys.argv: command = command + arg + ' ' f = open(name+'.sh', 'w') f.write(command)