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source: trunk/UTIL/PYTHON/planetoplot.py @ 373

Last change on this file since 373 was 372, checked in by acolaitis, 14 years ago
PYTHON: small commit to add possibility to do semilog plot along the y axis of 2D contour plots.
Property svn:executable set to ``*
File size: 19.6 KB

Rev	Line
[349]	1	#######################
	2	##### PLANETOPLOT #####
	3	#######################
[345]	4
[349]	5	### A. Spiga -- LMD -- 06~09/2011 -- General building and mapping capabilities
	6	### T. Navarro -- LMD -- 10~11/2011 -- Improved use for GCM and added sections + 1Dplot capabilities
[361]	7	### A. Colaitis -- LMD -- -- Mostly minor improvements and inter-plot operation capabilities + zrecast interpolation for gcm
[345]	8
	9	def planetoplot (namefiles,\
[351]	10	level=0,\
[350]	11	vertmode=0,\
[345]	12	proj=None,\
	13	back=None,\
	14	target=None,
	15	stride=3,\
[350]	16	numplot=None,\
[345]	17	var=None,\
	18	colorb="def",\
	19	winds=True,\
	20	addchar=None,\
	21	interv=[0,1],\
	22	vmin=None,\
	23	vmax=None,\
	24	tile=False,\
	25	zoom=None,\
	26	display=True,\
	27	itstep=None,\
	28	hole=False,\
	29	save="gui",\
	30	anomaly=False,\
	31	var2=None,\
	32	ndiv=10,\
	33	first=1,\
	34	mult=1.,\
	35	zetitle="fill",\
	36	slon=None,\
	37	slat=None,\
	38	svert=None,\
[359]	39	stime=None,\
	40	outputname=None,\
	41	resolution=200,\
	42	ope=None,\
	43	fileref=None,\
	44	minop=0.,\
	45	maxop=0.,\
[363]	46	titleref="fill",\
[369]	47	invert_y=False,\
	48	xaxis=[None,None],\
[372]	49	yaxis=[None,None],\
	50	ylog=False):
[345]	51
[359]	52
[345]	53	####################################################################################################################
	54	### Colorbars http://www.scipy.org/Cookbook/Matplotlib/Show_colormaps?action=AttachFile&do=get&target=colormaps3.png
	55
	56	#################################
	57	### Load librairies and functions
	58	from netCDF4 import Dataset
	59	from myplot import getcoord2d,define_proj,makeplotres,simplinterv,vectorfield,ptitle,latinterv,getproj,wrfinterv,dumpbdy,\
	60	fmtvar,definecolorvec,defcolorb,getprefix,putpoints,calculate_bounds,errormess,definesubplot,\
	61	zoomset,getcoorddef,getwinddef,whatkindfile,reducefield,bounds,getstralt,getfield,smooth,nolow,\
[349]	62	getname,localtime,polarinterv,getsindex,define_axis,determineplot
[345]	63	from mymath import deg,max,min,mean
[363]	64	import matplotlib as mpl
[345]	65	from matplotlib.pyplot import contour,contourf, subplot, figure, rcParams, savefig, colorbar, pcolor, show, plot, clabel
	66	from matplotlib.cm import get_cmap
	67	import numpy as np
	68	from numpy.core.defchararray import find
[359]	69
[349]	70	################################
	71	### Which plot needs to be done?
	72	nlon, nlat, nvert, ntime, mapmode, nslices = determineplot(slon, slat, svert, stime)
	73	if mapmode == 0: winds=False
	74	if not isinstance(namefiles, np.ndarray): namefiles = [namefiles]
	75	zelen = len(namefiles)
[350]	76	if numplot == None: numplot = zelen*nslices
[349]	77	print "len(namefiles), nslices, numplot: ", zelen, nslices, numplot
[359]	78	if fileref is not None:
	79	all_var = [[]]*(zelen+2)
	80	else:
	81	all_var = [[]]*zelen
	82	all_var2 = [[]]*zelen
	83	all_title = [[]]*zelen
[345]	84
	85	#########################
	86	### Loop over the files initially separated by comas to be plotted on the same figure
	87	k = 0
	88	firstfile = True
	89	for namefile in namefiles:
[361]	90	print namefile
[345]	91	######################
	92	### Load NETCDF object
	93	nc = Dataset(namefile)
[351]	94
[345]	95	##################################
	96	### Initial checks and definitions
[349]	97	### ... TYPEFILE
	98	typefile = whatkindfile(nc)
[345]	99	if firstfile:
	100	typefile0 = typefile
	101	elif typefile != typefile0:
[349]	102	errormess("Not the same kind of files !", [typefile0, typefile])
	103	### ... VAR
	104	if var not in nc.variables: var = False
	105	### ... WINDS
	106	if winds:
[345]	107	[uchar,vchar,metwind] = getwinddef(nc)
	108	if uchar == 'not found': winds = False
	109	if not var and not winds: errormess("please set at least winds or var",printvar=nc.variables)
[349]	110	### ... COORDINATES, could be moved below
	111	[lon2d,lat2d] = getcoorddef(nc)
	112	### ... PROJECTION
	113	if proj == None: proj = getproj(nc)
[345]	114
[349]	115	##########################################################
	116	if typefile == "gcm":
[350]	117	lat = nc.variables["latitude"][:]
[349]	118	lon = nc.variables["longitude"][:]
[364]	119	if "Time" in nc.variables:
	120	time = nc.variables["Time"][:]
	121	elif "time" in nc.variables:
	122	time = nc.variables["time"][:]
	123	else:
	124	print "no time axis found."
	125	exit()
[349]	126	vert = nc.variables["altitude"][:]
[350]	127	elif typefile in ['meso','mesoapi']:
	128	if mapmode == 0:
[351]	129	if var in ['PHTOT','W']: vertdim='BOTTOM-TOP_PATCH_END_STAG'
	130	else: vertdim='BOTTOM-TOP_PATCH_END_UNSTAG'
[350]	131	if var in ['V']: latdim='SOUTH-NORTH_PATCH_END_STAG'
	132	else: latdim='SOUTH-NORTH_PATCH_END_UNSTAG'
	133	if var in ['U']: londim='WEST-EAST_PATCH_END_STAG'
	134	else: londim='WEST-EAST_PATCH_END_UNSTAG'
	135	lon = np.arange(0,getattr(nc,londim),1)
	136	lat = np.arange(0,getattr(nc,latdim),1)
[357]	137	if vertmode is None: vertmode=0
[351]	138	if vertmode == 0: vert = np.arange(0,getattr(nc,vertdim),1)
	139	else: vert = nc.variables["vert"][:]
[350]	140	time = np.arange(0,len(nc.variables["Times"]),1)
	141	#if firstfile:
	142	# lat0 = lat
	143	#elif len(lat0) != len(lat):
	144	# errormess("Not the same latitude lengths !", [len(lat0), len(lat)])
	145	#elif sum((lat == lat0) == False) != 0:
	146	# errormess("Not the same latitudes !", [lat,lat0])
	147	## Faire d'autre checks sur les compatibilites entre fichiers!!
[349]	148	##########################################################
[345]	149
	150	if firstfile:
	151	##########################
	152	### Define plot boundaries
	153	### todo: possible areas in latinterv in argument (ex: "Far_South_Pole")
	154	if proj in ["npstere","spstere"]: [wlon,wlat] = polarinterv(lon2d,lat2d)
	155	elif proj in ["lcc","laea"]: [wlon,wlat] = wrfinterv(lon2d,lat2d)
	156	else: [wlon,wlat] = simplinterv(lon2d,lat2d)
	157	if zoom: [wlon,wlat] = zoomset(wlon,wlat,zoom)
	158
	159	#########################################
	160	### Name for title and graphics save file
	161	basename = getname(var=var,winds=winds,anomaly=anomaly)
[351]	162	basename = basename + getstralt(nc,level) ## can be moved elsewhere for a more generic routine
[345]	163
[349]	164	print "var, var2: ", var, var2
[345]	165	if var: all_var[k] = getfield(nc,var)
	166	if var2: all_var2[k] = getfield(nc,var2)
	167
	168	print "k", k
	169	print "all_var[k].shape", all_var[k].shape
	170	k += 1
	171	firstfile = False
	172	#### End of for namefile in namefiles
	173
[359]	174	##################################
	175	### Load reference file if there is one
	176	if fileref is not None:
	177	ncref = Dataset(fileref)
	178	### ... VAR
	179	if var not in nc.variables: var = False
	180	if var:
	181	all_var[k] = getfield(ncref,var)
	182	if ope is "-":
	183	all_var[k+1]= all_var[k-1] - all_var[k]
	184	elif ope is "+":
	185	all_var[k+1]= all_var[k-1] + all_var[k]
	186	elif ope is not None:
	187	print "non-implemented operation. Available op. are + and -."
	188	numplot = numplot+2
[345]	189
	190	##################################
	191	### Open a figure and set subplots
	192	fig = figure()
	193	subv,subh = definesubplot( numplot, fig )
	194
	195	#################################
	196	### Time loop for plotting device
	197	found_lct = False
	198	nplot = 1
	199	itime = first
	200	error = False
	201	if itstep is None and numplot > 0: itstep = int(24./numplot)
	202	elif numplot <= 0: itstep = 1
	203
	204	#for nplot in range(numplot):
	205	while error is False:
	206	print "nplot", nplot
	207	print error
	208
	209	### Which local time ?
	210	ltst = localtime ( interv[0]+itimeinterv[1], 0.5(wlon[0]+wlon[1]) )
	211
	212	### General plot settings
	213	#print itime, int(ltst), numplot, nplot
	214	if numplot >= 1:
	215	if nplot > numplot: break
	216	if numplot > 1:
	217	if typefile not in ['geo']: subplot(subv,subh,nplot)
	218	found_lct = True
	219	### If only one local time is requested (numplot < 0)
	220	elif numplot <= 0:
	221	if int(ltst) + numplot != 0:
	222	itime += 1
	223	if found_lct is True: break ## because it means LT was found at previous iteration
	224	else: continue ## continue to iterate to find the correct LT
	225	else:
	226	found_lct = True
	227
[349]	228	### Map projection
	229	if mapmode == 1:
	230	m = define_proj(proj,wlon,wlat,back=back)
	231	x, y = m(lon2d, lat2d)
	232
	233	####################################################################
[350]	234	if typefile in ['meso','mesoapi'] and mapmode == 1:
	235	indextime = itime
	236	indexlon = None
	237	indexlat = None
[351]	238	indexvert = level ## ou svert ???
[350]	239	nlon = 1
	240	nlat = 1
	241	nvert = 1
	242	ntime = 1
	243	else:
[349]	244	## get all indexes to be taken into account for this subplot and then reduce field
	245	## We plot 1) all lon slices 2) all lat slices 3) all vert slices 4) all time slices and then go to the next slice
	246	indexlon = getsindex(slon,(nplot-1)%nlon,lon)
	247	indexlat = getsindex(slat,((nplot-1)//nlon)%nlat,lat)
	248	indexvert = getsindex(svert,((nplot-1)//(nlon*nlat))%nvert,vert)
	249	indextime = getsindex(stime,((nplot-1)//(nlonnlatnvert))%ntime,time)
[359]	250
	251	if fileref is not None:
	252	index_f = ((nplot-1)//(nlonnlatnvert*ntime))%(len(namefiles)+2)
	253	else:
	254	index_f = ((nplot-1)//(nlonnlatnvert*ntime))%len(namefiles)
	255
[350]	256	print nlon, nlat, nvert, ntime
	257	print slon, slat, svert, stime
	258	print index_f
	259	print "index lon,lat,vert,time", max(indexlon), max(indexlat), max(indexvert), max(indextime)
[349]	260	####################################################################
	261
[345]	262	#### Contour plot
	263	if var2:
	264	what_I_plot, error = reducefield(all_var2[index_f], d4=indextime, d1=indexlon, d2=indexlat , d3=indexvert )
[349]	265	#what_I_plot = what_I_plot*mult
[345]	266	if not error:
[350]	267	if mapmode == 1:
	268	if typefile in ['mesoapi','meso']: what_I_plot = dumpbdy(what_I_plot,6)
[345]	269	zevmin, zevmax = calculate_bounds(what_I_plot)
[349]	270	zelevels = np.linspace(zevmin,zevmax,num=ndiv+1) #20)
	271	if var2 == 'HGT': zelevels = np.arange(-10000.,30000.,2000.)
[345]	272	if mapmode == 0:
	273	x, y = define_axis(lon,lat,vert,time,indexlon,indexlat,indexvert,\
[350]	274	indextime,what_I_plot.shape, len(all_var2[index_f].shape),vertmode)
[345]	275	### If we plot a 2-D field
	276	if len(what_I_plot.shape) is 2:
[349]	277	cs = contour(x,y,what_I_plot, zelevels, colors='k', linewidths = 1 ) #0.33 colors='w' )# , alpha=0.5)
	278	if typefile in ['gcm']: clabel(cs,fmt = '%1.2e')
[345]	279	### If we plot a 1-D field
	280	elif len(what_I_plot.shape) is 1:
[350]	281	plot(what_I_plot,x)
[345]	282	else:
	283	errormess("There is an error in reducing field !")
	284
	285	#### Shaded plot
	286	if var:
	287	what_I_plot, error = reducefield(all_var[index_f], d4=indextime, d1=indexlon, d2=indexlat , d3=indexvert )
	288	what_I_plot = what_I_plot*mult
	289	if not error:
	290	fvar = var
	291	###
	292	if anomaly:
	293	what_I_plot = 100. * ((what_I_plot / smooth(what_I_plot,12)) - 1.)
	294	fvar = 'anomaly'
	295	#if mult != 1:
	296	# fvar = str(mult) + "*" + var
	297	###
[350]	298	if mapmode == 1:
	299	if typefile in ['mesoapi','meso']: what_I_plot = dumpbdy(what_I_plot,6)
	300	elif mapmode == 0:
	301	what_I_plot, x, y = define_axis(lon,lat,vert,time,indexlon,indexlat,indexvert,\
	302	indextime,what_I_plot, len(all_var[index_f].shape),vertmode)
[359]	303	if (fileref is not None) and (index_f is numplot-1):
	304	zevmin, zevmax = calculate_bounds(what_I_plot,vmin=minop,vmax=maxop)
	305	else:
	306	zevmin, zevmax = calculate_bounds(what_I_plot,vmin=vmin,vmax=vmax)
[345]	307	if colorb in ["def","nobar"]: palette = get_cmap(name=defcolorb(fvar.upper()))
	308	else: palette = get_cmap(name=colorb)
[350]	309	##### 2D field
[345]	310	if len(what_I_plot.shape) is 2:
	311	if not tile:
	312	if not hole: what_I_plot = bounds(what_I_plot,zevmin,zevmax)
	313	#zelevels = np.linspace(zevmin(1. + 1.e-7),zevmax(1. - 1.e-7)) #,num=20)
[350]	314	zelevels = np.linspace(zevmin,zevmax)#,num=ndiv+1)
[345]	315	#contourf(what_I_plot, zelevels, cmap = palette )
[363]	316
[369]	317	contourf( x, y, what_I_plot, zelevels, cmap = palette)
	318
	319	zxmin, zxmax = xaxis
	320	zymin, zymax = yaxis
	321	if zxmin is not None:
	322	mpl.pyplot.xlim(xmin=zxmin)
	323	if zxmax is not None:
	324	mpl.pyplot.xlim(xmax=zxmax)
	325	if zymin is not None:
	326	mpl.pyplot.ylim(ymin=zymin)
	327	if zymax is not None:
	328	mpl.pyplot.ylim(ymax=zymax)
	329
[363]	330	if invert_y:
	331	lima,limb = mpl.pyplot.ylim()
	332	mpl.pyplot.ylim(limb,lima)
[372]	333	if ylog:
	334	mpl.pyplot.semilogy()
[363]	335
[345]	336	else:
	337	if hole: what_I_plot = nolow(what_I_plot)
[350]	338	pcolor( x, y, what_I_plot, cmap = palette, vmin=zevmin, vmax=zevmax )
	339	if colorb != 'nobar' and var != 'HGT' :
[359]	340	if (fileref is not None) and (index_f is numplot-1):
	341	colorbar(fraction=0.05,pad=0.03,format="%.2f",\
[349]	342	ticks=np.linspace(zevmin,zevmax,min([ndiv+1,20])),\
[345]	343	extend='neither',spacing='proportional')
[359]	344	else:
	345	colorbar(fraction=0.05,pad=0.03,format=fmtvar(fvar.upper()),\
	346	ticks=np.linspace(zevmin,zevmax,min([ndiv+1,20])),\
	347	extend='neither',spacing='proportional')
	348
[345]	349	# both min max neither
[350]	350	##### 1D field
[345]	351	elif len(what_I_plot.shape) is 1:
	352	plot(x,what_I_plot)
[350]	353	#### Other cases: (maybe plot 3-D field one day or movie ??)
[345]	354	else:
	355	print "WARNING!!! ",len(what_I_plot.shape),"-D PLOT NOT SUPPORTED !!!"
	356	print "field dimensions: ", what_I_plot.shape
	357	exit()
	358
	359	else:
	360	errormess("There is an error in reducing field !")
[349]	361
	362	### Vector plot --- a adapter
	363	if winds:
	364	vecx, error = reducefield( getfield(nc,uchar), d4=indextime, d3=indexvert )
	365	vecy, error = reducefield( getfield(nc,vchar), d4=indextime, d3=indexvert )
	366	#what_I_plot, error = reducefield(all_var[index_f], d4=indextime, d1=indexlon, d2=indexlat , d3=indexvert )
	367	if not error:
	368	if typefile in ['mesoapi','meso']:
	369	[vecx,vecy] = [dumpbdy(vecx,6,stag=uchar), dumpbdy(vecy,6,stag=vchar)]
	370	key = True
	371	elif typefile in ['gcm']:
	372	key = False
	373	if metwind: [vecx,vecy] = m.rotate_vector(vecx, vecy, lon2d, lat2d)
	374	if var == False: colorvec = definecolorvec(back)
	375	else: colorvec = definecolorvec(colorb)
	376	vectorfield(vecx, vecy,\
	377	x, y, stride=stride, csmooth=2,\
	378	#scale=15., factor=300., color=colorvec, key=key)
	379	scale=20., factor=250., color=colorvec, key=key)
	380	#200. ## or csmooth=stride
[345]	381
	382	### Next subplot
	383	if typefile in ['mesoapi','meso']:
[349]	384	plottitle = basename
[345]	385	if addchar: plottitle = plottitle + addchar + "_LT"+str(ltst)
	386	else: plottitle = plottitle + "_LT"+str(ltst)
[349]	387	else:
[359]	388	if fileref is not None:
	389	if index_f is numplot-1:
	390	plottitle = basename+' '+"fig(1) "+ope+" fig(2)"
	391	elif index_f is numplot-2:
	392	plottitle = basename+' '+fileref
	393	else:
	394	plottitle = basename+' '+namefiles[index_f]
	395	else:
	396	plottitle = basename+' '+namefiles[index_f]
[345]	397	if mult != 1: plottitle = str(mult) + "*" + plottitle
[359]	398	if zetitle != "fill":
	399	plottitle = zetitle
	400	if titleref is "fill":
	401	titleref=zetitle
	402	if fileref is not None:
	403	if index_f is numplot-2:
	404	plottitle = titleref
	405	if index_f is numplot-1:
	406	plottitle = "fig(1) "+ope+" fig(2)"
[345]	407	# if indexlon is not None:
	408	# plottitle = plottitle + " lon: " + str(min(lon[indexlon])) +" "+ str(max(lon[indexlon]))
	409	# if indexlat is not None:
	410	# plottitle = plottitle + " lat: " + str(min(lat[indexlat])) +" "+ str(max(lat[indexlat]))
	411	# if indexvert is not None:
	412	# plottitle = plottitle + " vert: " + str(min(vert[indexvert])) +" "+ str(max(vert[indexvert]))
	413	# if indextime is not None:
	414	# plottitle = plottitle + " time: " + str(min(time[indextime])) +" "+ str(max(time[indextime]))
	415	ptitle( plottitle )
	416	itime += itstep
[349]	417	if nplot >= numplot:
[345]	418	error = True
	419	nplot += 1
	420
	421
	422
	423
	424
	425
	426
	427
	428	##########################################################################
	429	### Save the figure in a file in the data folder or an user-defined folder
[359]	430	if outputname is None:
	431	if typefile in ['meso','mesoapi']: prefix = getprefix(nc)
	432	elif typefile in ['gcm']: prefix = 'LMD_GCM_'
	433	else: prefix = ''
[345]	434	###
[359]	435	zeplot = prefix + basename
	436	if addchar: zeplot = zeplot + addchar
	437	if numplot <= 0: zeplot = zeplot + "_LT"+str(abs(numplot))
[345]	438	###
[359]	439	if not target: zeplot = namefile[0:find(namefile,'wrfout')] + zeplot
	440	else: zeplot = target + "/" + zeplot
[345]	441	###
[359]	442	else:
	443	zeplot=outputname
	444
[345]	445	if found_lct:
	446	pad_inches_value = 0.35
	447	print "save", save
	448	if save == 'png':
	449	if display: makeplotres(zeplot,res=100.,pad_inches_value=pad_inches_value) #,erase=True) ## a miniature
[359]	450	makeplotres(zeplot,res=resolution,pad_inches_value=pad_inches_value,disp=False)
[345]	451	elif save in ['eps','svg','pdf']:
	452	makeplotres(zeplot, pad_inches_value=pad_inches_value,disp=False,ext=save)
	453	elif save == 'gui':
	454	show()
	455	else:
	456	print "save mode not supported. using gui instead."
	457	show()
	458	else: print "Local time not found"
	459
	460	###############
	461	### Now the end
	462	return zeplot

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