| 1 | #!/usr/bin/env python |
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| 2 | |
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| 3 | ### A. Spiga -- LMD -- 30/06/2011 to 10/07/2011 |
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| 4 | ### Thanks to A. Colaitis for the parser trick |
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| 5 | |
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| 6 | |
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| 7 | #################################### |
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| 8 | #################################### |
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| 9 | ### The main program to plot vectors |
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| 10 | def winds (namefile,\ |
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| 11 | nvert,\ |
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| 12 | proj=None,\ |
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| 13 | back=None,\ |
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| 14 | target=None, |
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| 15 | stride=3,\ |
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| 16 | numplot=2,\ |
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| 17 | var=None,\ |
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| 18 | colorb=True,\ |
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| 19 | winds=True,\ |
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| 20 | addchar=None,\ |
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| 21 | interv=[0,1],\ |
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| 22 | vmin=None,\ |
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| 23 | vmax=None,\ |
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| 24 | tile=False,\ |
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| 25 | zoom=None,\ |
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| 26 | display=True,\ |
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| 27 | itstep=None): |
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| 28 | |
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| 29 | #################################################################################################################### |
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| 30 | ### Colorbars http://www.scipy.org/Cookbook/Matplotlib/Show_colormaps?action=AttachFile&do=get&target=colormaps3.png |
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| 31 | |
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| 32 | ################################# |
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| 33 | ### Load librairies and functions |
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| 34 | from netCDF4 import Dataset |
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| 35 | from myplot import getcoord2d,define_proj,makeplotpng,simplinterv,vectorfield,ptitle,latinterv,getproj,wrfinterv,dumpbdy,\ |
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| 36 | fmtvar,definecolorvec,defcolorb,getprefix,putpoints,calculate_bounds,errormess,definesubplot,\ |
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| 37 | zoomset,getcoorddef,getwinddef,whatkindfile,reducefield,bounds,getstralt,getfield |
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| 38 | from mymath import deg,max,min,mean |
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| 39 | from matplotlib.pyplot import contour,contourf, subplot, figure, rcParams, savefig, colorbar, pcolor |
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| 40 | from matplotlib.cm import get_cmap |
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| 41 | import numpy as np |
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| 42 | from numpy.core.defchararray import find |
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| 43 | |
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| 44 | ###################### |
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| 45 | ### Load NETCDF object |
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| 46 | nc = Dataset(namefile) |
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| 47 | |
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| 48 | ################################## |
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| 49 | ### Initial checks and definitions |
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| 50 | typefile = whatkindfile(nc) ## TYPEFILE |
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| 51 | if var not in nc.variables: var = False ## VAR |
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| 52 | if winds: [uchar,vchar,metwind] = getwinddef(nc) ## WINDS |
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| 53 | if uchar == 'not found': winds = False |
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| 54 | [lon2d,lat2d] = getcoorddef(nc) ## COORDINATES, could be moved below |
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| 55 | if proj == None: proj = getproj(nc) ## PROJECTION |
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| 56 | |
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| 57 | ########################## |
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| 58 | ### Define plot boundaries |
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| 59 | if proj == "npstere": [wlon,wlat] = latinterv("North_Pole") |
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| 60 | elif proj in ["lcc","laea"]: [wlon,wlat] = wrfinterv(lon2d,lat2d) |
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| 61 | else: [wlon,wlat] = simplinterv(lon2d,lat2d) |
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| 62 | if zoom: [wlon,wlat] = zoomset(wlon,wlat,zoom) |
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| 63 | |
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| 64 | ######################################### |
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| 65 | ### Name for title and graphics save file |
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| 66 | if var and winds: basename = var + '_UV' |
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| 67 | elif var: basename = var |
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| 68 | elif winds: basename = 'UV' |
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| 69 | else: |
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| 70 | print nc.variables |
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| 71 | errormess("please set at least winds or var") |
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| 72 | basename = basename + getstralt(nc,nvert) ## can be moved elsewhere for a more generic routine |
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| 73 | |
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| 74 | ################################## |
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| 75 | ### Open a figure and set subplots |
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| 76 | fig = figure() |
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| 77 | sub = definesubplot( numplot, fig ) |
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| 78 | |
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| 79 | ################################# |
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| 80 | ### Time loop for plotting device |
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| 81 | found_lct = False |
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| 82 | itime = 0 ## could be an argument |
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| 83 | nplot = 1 |
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| 84 | error = False |
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| 85 | if itstep is None: itstep = int(24./numplot) |
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| 86 | while error is False: |
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| 87 | |
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| 88 | ### Which local time ? |
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| 89 | print interv[0], interv[1], itime |
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| 90 | ltst = ( interv[0] + 0.5*(wlon[0]+wlon[1])/15.) + itime*interv[1] |
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| 91 | ltst = int (ltst * 10) / 10. |
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| 92 | ltst = ltst % 24 |
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| 93 | |
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| 94 | ### General plot settings |
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| 95 | #print itime, int(ltst), numplot, nplot |
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| 96 | if numplot >= 1: |
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| 97 | if nplot > numplot: break |
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| 98 | if numplot > 1: |
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| 99 | if typefile not in ['geo']: subplot(sub+nplot-1) |
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| 100 | |
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| 101 | found_lct = True |
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| 102 | ### If only one local time is requested (numplot < 0) |
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| 103 | elif numplot <= 0: |
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| 104 | if int(ltst) + numplot != 0: |
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| 105 | itime += 1 |
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| 106 | if found_lct is True: break ## because it means LT was found at previous iteration |
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| 107 | else: continue ## continue to iterate to find the correct LT |
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| 108 | else: |
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| 109 | found_lct = True |
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| 110 | |
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| 111 | ### Map projection |
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| 112 | m = define_proj(proj,wlon,wlat,back=back) |
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| 113 | x, y = m(lon2d, lat2d) |
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| 114 | |
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| 115 | #### Contour plot |
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| 116 | if var: |
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| 117 | what_I_plot, error = reducefield( getfield(nc,var), d4=itime, d3=nvert ) |
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| 118 | if not error: |
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| 119 | if typefile in ['mesoapi','meso']: what_I_plot = dumpbdy(what_I_plot) |
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| 120 | zevmin, zevmax = calculate_bounds(what_I_plot,vmin=vmin,vmax=vmax) |
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| 121 | if colorb is True: colorb = defcolorb(var) |
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| 122 | palette = get_cmap(name=colorb) |
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| 123 | if not tile: |
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| 124 | hole = True |
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| 125 | hole = None |
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| 126 | if not hole: what_I_plot = bounds(what_I_plot,zevmin,zevmax) |
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| 127 | zelevels = np.linspace(zevmin,zevmax) |
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| 128 | contourf( x, y, what_I_plot, zelevels, cmap = palette ) |
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| 129 | else: |
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| 130 | pcolor( x, y, what_I_plot, cmap = palette, vmin=zevmin, vmax=zevmax ) |
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| 131 | #putpoints(m,fig) |
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| 132 | if var in ['HGT']: pass |
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| 133 | elif colorb: |
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| 134 | ndiv = 10 |
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| 135 | colorbar(fraction=0.05,pad=0.1,format=fmtvar(var),\ |
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| 136 | ticks=np.linspace(zevmin,zevmax,ndiv+1),\ |
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| 137 | extend='max',spacing='proportional') |
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| 138 | # both min max neither |
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| 139 | |
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| 140 | ### Vector plot |
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| 141 | if winds: |
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| 142 | vecx, error = reducefield( getfield(nc,uchar), d4=itime, d3=nvert ) |
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| 143 | vecy, error = reducefield( getfield(nc,vchar), d4=itime, d3=nvert ) |
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| 144 | if not error: |
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| 145 | if typefile in ['mesoapi','meso']: |
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| 146 | [vecx,vecy] = [dumpbdy(vecx,stag=uchar), dumpbdy(vecy,stag=vchar)] |
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| 147 | key = True |
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| 148 | elif typefile in ['gcm']: |
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| 149 | key = False |
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| 150 | if metwind: [vecx,vecy] = m.rotate_vector(vecx, vecy, lon2d, lat2d) |
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| 151 | if var == False: colorvec = definecolorvec(back) |
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| 152 | else: colorvec = definecolorvec(colorb) |
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| 153 | vectorfield(vecx, vecy,\ |
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| 154 | x, y, stride=stride, csmooth=2,\ |
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| 155 | scale=15., factor=300., color=colorvec, key=key) |
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| 156 | #200. ## or csmooth=stride |
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| 157 | |
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| 158 | ### Next subplot |
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| 159 | plottitle = basename |
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| 160 | if typefile in ['mesoapi','meso']: |
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| 161 | if addchar: plottitle = plottitle + addchar + "_LT"+str(ltst) |
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| 162 | else: plottitle = plottitle + "_LT"+str(ltst) |
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| 163 | ptitle( plottitle ) |
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| 164 | itime += itstep |
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| 165 | nplot += 1 |
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| 166 | |
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| 167 | ########################################################################## |
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| 168 | ### Save the figure in a file in the data folder or an user-defined folder |
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| 169 | if typefile in ['meso','mesoapi']: prefix = getprefix(nc) |
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| 170 | elif typefile in ['gcm']: prefix = 'LMD_GCM_' |
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| 171 | else: prefix = '' |
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| 172 | ### |
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| 173 | zeplot = prefix + basename |
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| 174 | if addchar: zeplot = zeplot + addchar |
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| 175 | if numplot <= 0: zeplot = zeplot + "_LT"+str(abs(numplot)) |
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| 176 | ### |
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| 177 | if not target: zeplot = namefile[0:find(namefile,'wrfout')] + zeplot |
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| 178 | else: zeplot = target + "/" + zeplot |
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| 179 | ### |
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| 180 | if found_lct: makeplotpng(zeplot,pad_inches_value=0.35,disp=display) |
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| 181 | else: print "Local time not found" |
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| 182 | |
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| 183 | ############### |
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| 184 | ### Now the end |
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| 185 | return zeplot |
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| 186 | |
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| 187 | ############################## |
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| 188 | ### A specific stuff for below |
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| 189 | def adjust_length (tab, zelen): |
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| 190 | from numpy import ones |
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| 191 | if tab is None: |
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| 192 | outtab = ones(zelen) * -999999 |
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| 193 | else: |
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| 194 | print zelen, len(tab) |
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| 195 | if zelen != len(tab): |
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| 196 | print "not enough or too much values... setting same values all variables" |
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| 197 | outtab = ones(zelen) * tab[0] |
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| 198 | else: |
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| 199 | outtab = tab |
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| 200 | return outtab |
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| 201 | |
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| 202 | ########################################################################################### |
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| 203 | ########################################################################################### |
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| 204 | ### What is below relate to running the file as a command line executable (very convenient) |
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| 205 | if __name__ == "__main__": |
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| 206 | import sys |
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| 207 | from optparse import OptionParser ### to be replaced by argparse |
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| 208 | from api_wrapper import api_onelevel |
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| 209 | from netCDF4 import Dataset |
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| 210 | from myplot import getlschar |
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| 211 | |
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| 212 | ############################# |
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| 213 | ### Get options and variables |
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| 214 | parser = OptionParser() |
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| 215 | parser.add_option('-f', action='append',dest='namefile', type="string", default=None, help='[NEEDED] name of WRF file (append)') |
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| 216 | 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)') |
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| 217 | parser.add_option('-p', action='store',dest='proj', type="string", default=None, help='projection') |
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| 218 | parser.add_option('-b', action='store',dest='back', type="string", default=None, help='background image (def: None)') |
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| 219 | parser.add_option('-t', action='store',dest='target', type="string", default=None, help='destination folder') |
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| 220 | parser.add_option('-s', action='store',dest='stride', type="int", default=3, help='stride vectors (def=3)') |
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| 221 | parser.add_option('-v', action='append',dest='var', type="string", default=None, help='variable contoured (append)') |
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| 222 | parser.add_option('-n', action='store',dest='numplot', type="int", default=2, help='number of plots (def=1)(<0: 1 plot of LT -*numplot*)') |
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| 223 | parser.add_option('-i', action='store',dest='interp', type="int", default=None, help='interpolation method (2: press, 3: z-amr, 4:z-als)') |
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| 224 | parser.add_option('-c', action='store',dest='colorb', type="string", default=True, help='change colormap') |
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| 225 | parser.add_option('-x', action='store_false',dest='winds', default=True, help='no wind vectors') |
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| 226 | parser.add_option('-m', action='append',dest='vmin', type="float", default=None, help='bounding minimum value (append)') |
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| 227 | parser.add_option('-M', action='append',dest='vmax', type="float", default=None, help='bounding maximum value (append)') |
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| 228 | parser.add_option('-T', action='store_true',dest='tile', default=False, help='draw a tiled plot (no blank zone)') |
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| 229 | parser.add_option('-z', action='store',dest='zoom', type="float", default=None, help='zoom factor in %') |
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| 230 | parser.add_option('-N', action='store_true',dest='nocall', default=False, help='do not recreate api file') |
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| 231 | parser.add_option('-d', action='store_false',dest='display', default=True, help='do not pop up created images') |
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| 232 | parser.add_option('-e', action='store',dest='itstep', type="int", default=None, help='stride time (def=4)') |
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| 233 | #parser.add_option('-V', action='store', dest='comb', type="float", default=None, help='a defined combination of variables') |
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| 234 | (opt,args) = parser.parse_args() |
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| 235 | if opt.namefile is None: |
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| 236 | print "I want to eat one file at least ! Use winds.py -f name_of_my_file. Or type winds.py -h" |
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| 237 | exit() |
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| 238 | print "Options:", opt |
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| 239 | |
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| 240 | listvar = '' |
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| 241 | if opt.var is None: |
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| 242 | zerange = [-999999] |
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| 243 | else: |
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| 244 | zelen = len(opt.var) |
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| 245 | zerange = range(zelen) |
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| 246 | #if zelen == 1: listvar = opt.var[0] + ',' |
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| 247 | #else : |
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| 248 | for jjj in zerange: listvar += opt.var[jjj] + ',' |
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| 249 | listvar = listvar[0:len(listvar)-1] |
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| 250 | vmintab = adjust_length (opt.vmin, zelen) |
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| 251 | vmaxtab = adjust_length (opt.vmax, zelen) |
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| 252 | |
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| 253 | for i in range(len(opt.namefile)): |
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| 254 | |
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| 255 | zefile = opt.namefile[i] |
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| 256 | print zefile |
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| 257 | zelevel = opt.nvert |
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| 258 | stralt = None |
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| 259 | [lschar,zehour,zehourin] = getlschar ( zefile ) ## getlschar from wrfout (or simply return "" if another file) |
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| 260 | |
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| 261 | ##################################################### |
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| 262 | ### Call Fortran routines for vertical interpolations |
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| 263 | if opt.interp is not None: |
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| 264 | if opt.nvert is 0 and opt.interp is 4: zelevel = 0.010 |
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| 265 | ### winds or no winds |
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| 266 | if opt.winds : zefields = 'uvmet' |
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| 267 | else : zefields = '' |
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| 268 | ### var or no var |
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| 269 | #if opt.var is None : pass |
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| 270 | if zefields == '' : zefields = listvar |
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| 271 | else : zefields = zefields + "," + listvar |
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| 272 | print zefields |
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| 273 | zefile = api_onelevel ( path_to_input = '', \ |
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| 274 | input_name = zefile, \ |
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| 275 | #path_to_output = opt.target, \ |
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| 276 | fields = zefields, \ |
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| 277 | interp_method = opt.interp, \ |
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| 278 | onelevel = zelevel, \ |
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| 279 | nocall = opt.nocall ) |
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| 280 | print zefile |
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| 281 | zelevel = 0 ## so that zelevel could play again the role of nvert |
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| 282 | |
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| 283 | if opt.var is None: zerange = [-999999] |
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| 284 | else: zerange = range(zelen) |
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| 285 | for jjj in zerange: |
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| 286 | if jjj == -999999: |
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| 287 | argvar = None |
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| 288 | argvmin = None |
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| 289 | argvmax = None |
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| 290 | else: |
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| 291 | argvar = opt.var[jjj] |
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| 292 | if vmintab[jjj] != -999999: argvmin = vmintab[jjj] |
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| 293 | else: argvmin = None |
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| 294 | if vmaxtab[jjj] != -999999: argvmax = vmaxtab[jjj] |
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| 295 | else: argvmax = None |
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| 296 | ############# |
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| 297 | ### Main call |
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| 298 | name = winds (zefile,int(zelevel),\ |
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| 299 | proj=opt.proj,back=opt.back,target=opt.target,stride=opt.stride,var=argvar,\ |
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| 300 | numplot=opt.numplot,colorb=opt.colorb,winds=opt.winds,\ |
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| 301 | addchar=lschar,interv=[zehour,zehourin],vmin=argvmin,vmax=argvmax,\ |
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| 302 | tile=opt.tile,zoom=opt.zoom,display=opt.display,\ |
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| 303 | itstep=opt.itstep) |
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| 304 | print 'Done: '+name |
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| 305 | |
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| 306 | ######################################################### |
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| 307 | ### Generate a .sh file with the used command saved in it |
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| 308 | command = "" |
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| 309 | for arg in sys.argv: command = command + arg + ' ' |
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| 310 | f = open(name+'.sh', 'w') |
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| 311 | f.write(command) |
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