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planetoplot.py @ 398

Last change on this file since 398 was 398, checked in by acolaitis, 13 years ago

PYTHON:

Improved handling of missing values NaN by min() and max() functions
Added the possibility to change the viewing angle of "ortho" projections by using --blat. Default is meanlat. (remember than in spstere and npstere projections, blat already controls the boundling latitude)
Changed colorbar of "operation" plots to RdBu_r, whatever the colorbar of other plots are. The thinking behind this is that this is a symmetrical colorbar, which is very usefull for difference plots. (could be changed for other operations.)

Property svn:executable set to *

File size: 22.3 KB

Line
1	#######################
2	##### PLANETOPLOT #####
3	#######################
4
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
7	### A. Colaitis -- LMD -- 11/2011 -- Mostly minor improvements and inter-plot operation capabilities + zrecast interpolation for gcm
8	### A. Spiga -- LMD -- 11/2011 -- Extended multivar subplot capabilities + cosmetic changes + general cleaning and tests
9
10	def planetoplot (namefiles,\
11	level=0,\
12	vertmode=0,\
13	proj=None,\
14	back=None,\
15	target=None,
16	stride=3,\
17	numplot=None,\
18	var=None,\
19	colorb="def",\
20	winds=True,\
21	addchar=None,\
22	interv=[0,1],\
23	vmin=None,\
24	vmax=None,\
25	tile=False,\
26	zoom=None,\
27	display=True,\
28	itstep=None,\
29	hole=False,\
30	save="gui",\
31	anomaly=False,\
32	var2=None,\
33	ndiv=10,\
34	first=1,\
35	mult=1.,\
36	zetitle="fill",\
37	slon=None,\
38	slat=None,\
39	svert=None,\
40	stime=None,\
41	outputname=None,\
42	resolution=200,\
43	ope=None,\
44	fileref=None,\
45	minop=0.,\
46	maxop=0.,\
47	titleref="fill",\
48	invert_y=False,\
49	xaxis=[None,None],\
50	yaxis=[None,None],\
51	ylog=False,\
52	yintegral=False,\
53	blat=None,\
54	tsat=False):
55
56
57	####################################################################################################################
58	### Colorbars http://www.scipy.org/Cookbook/Matplotlib/Show_colormaps?action=AttachFile&do=get&target=colormaps3.png
59
60	#################################
61	### Load librairies and functions
62	from netCDF4 import Dataset
63	from myplot import getcoord2d,define_proj,makeplotres,simplinterv,vectorfield,ptitle,latinterv,getproj,wrfinterv,dumpbdy,\
64	fmtvar,definecolorvec,defcolorb,getprefix,putpoints,calculate_bounds,errormess,definesubplot,\
65	zoomset,getcoorddef,getwinddef,whatkindfile,reducefield,bounds,getstralt,getfield,smooth,nolow,\
66	getname,localtime,polarinterv,getsindex,define_axis,determineplot,readslices
67	from mymath import deg,max,min,mean,get_tsat
68	import matplotlib as mpl
69	from matplotlib.pyplot import contour,contourf, subplot, figure, rcParams, savefig, colorbar, pcolor, show, plot, clabel, title
70	from matplotlib.cm import get_cmap
71	import numpy as np
72	from numpy.core.defchararray import find
73
74	################################
75	### Preliminary stuff
76	################################
77	print "********************************************"
78	print "******** WELCOME TO PLANETOPLOT ********"
79	print "********************************************"
80	if not isinstance(namefiles, np.ndarray): namefiles = [namefiles]
81	if not isinstance(var, np.ndarray): var = [var]
82	if ope is not None and len(var) > 1: errormess("you are using an operation... please set only one var !")
83
84	################################
85	### Which plot needs to be done?
86	################################
87	nlon, nlat, nvert, ntime, mapmode, nslices = determineplot(slon, slat, svert, stime)
88	if mapmode == 0: winds=False
89	elif mapmode == 1:
90	if svert is None: svert = readslices(str(level)) ; nvert=1
91	zelen = len(namefiles)*len(var)
92	if numplot is None: numplot = zelen*nslices
93	print "********** FILES, SLICES, VARS, TOTAL PLOTS: ", len(namefiles), nslices, len(var), numplot
94	print "********** MAPMODE: ", mapmode
95	if fileref is not None: all_var = [[]](zelen+2) ; all_varname = [[]](zelen+2)
96	else: all_var = [[]]zelen ; all_var2 = [[]]zelen ; all_title = [[]]zelen ; all_varname = [[]]zelen
97
98	#################################################################################################
99	### Loop over the files + vars initially separated by commas to be plotted on the same figure ###
100	#################################################################################################
101	k = 0
102	firstfile = True
103	for nnn in range(len(namefiles)):
104	for vvv in range(len(var)):
105
106	print "********** LOOP..... THIS IS SUBPLOT NUMBER.....",k
107
108	######################
109	### Load NETCDF object
110	namefile = namefiles[nnn] ; print "********** THE NAMEFILE IS....", namefile
111	nc = Dataset(namefile)
112
113	##################################
114	### Initial checks and definitions
115	### ... TYPEFILE
116	typefile = whatkindfile(nc)
117	if firstfile: typefile0 = typefile
118	elif typefile != typefile0: errormess("Not the same kind of files !", [typefile0, typefile])
119	### ... VAR
120	varname=var[vvv]
121	print "********** THE VAR IS....",varname, var2
122	if varname not in nc.variables: varname = False
123	### ... WINDS
124	if winds:
125	[uchar,vchar,metwind] = getwinddef(nc)
126	if uchar == 'not found': winds = False
127	if not varname and not winds: errormess("please set at least winds or var",printvar=nc.variables)
128	### ... COORDINATES, could be moved below
129	[lon2d,lat2d] = getcoorddef(nc)
130	### ... PROJECTION
131	if proj == None: proj = getproj(nc)
132
133	##########################################################
134	if typefile == "gcm":
135	lat = nc.variables["latitude"][:]
136	lon = nc.variables["longitude"][:]
137	if "Time" in nc.variables:
138	time = nc.variables["Time"][:]
139	elif "time" in nc.variables:
140	time = nc.variables["time"][:]
141	else:
142	print "no time axis found."
143	exit()
144	vert = nc.variables["altitude"][:]
145	elif typefile in ['meso','mesoapi']:
146	if varname in ['PHTOT','W']: vertdim='BOTTOM-TOP_PATCH_END_STAG'
147	else: vertdim='BOTTOM-TOP_PATCH_END_UNSTAG'
148	if varname in ['V']: latdim='SOUTH-NORTH_PATCH_END_STAG'
149	else: latdim='SOUTH-NORTH_PATCH_END_UNSTAG'
150	if varname in ['U']: londim='WEST-EAST_PATCH_END_STAG'
151	else: londim='WEST-EAST_PATCH_END_UNSTAG'
152	lon = np.arange(0,getattr(nc,londim),1)
153	lat = np.arange(0,getattr(nc,latdim),1)
154	if vertmode is None: vertmode=0
155	if vertmode == 0: vert = np.arange(0,getattr(nc,vertdim),1)
156	else: vert = nc.variables["vert"][:]
157	time = np.arange(0,len(nc.variables["Times"]),1)
158	#if firstfile:
159	# lat0 = lat
160	#elif len(lat0) != len(lat):
161	# errormess("Not the same latitude lengths !", [len(lat0), len(lat)])
162	#elif sum((lat == lat0) == False) != 0:
163	# errormess("Not the same latitudes !", [lat,lat0])
164	## Faire d'autre checks sur les compatibilites entre fichiers!!
165	##########################################################
166
167	if firstfile:
168	##########################
169	### Define plot boundaries
170	### todo: possible areas in latinterv in argument (ex: "Far_South_Pole")
171	if proj in ["npstere","spstere"]: [wlon,wlat] = polarinterv(lon2d,lat2d)
172	elif proj in ["lcc","laea"]: [wlon,wlat] = wrfinterv(lon2d,lat2d)
173	else: [wlon,wlat] = simplinterv(lon2d,lat2d)
174	if zoom: [wlon,wlat] = zoomset(wlon,wlat,zoom)
175	### ... NAME FOR TITLE and FILE (have to do something for multiple vars...)
176	basename = getname(var=varname,winds=winds,anomaly=anomaly)
177	basename = basename + getstralt(nc,level) ## can be moved elsewhere for a more generic routine
178
179	##### SPECIFIC
180	if varname in ["temp","t","T_nadir_nit","T_nadir_day","temp_day","temp_night"] and tsat:
181	tt=getfield(nc,varname) ; print "computing Tsat-T, I ASSUME Z-AXIS IS PRESSURE"
182	if type(tt).__name__=='MaskedArray': tt.set_fill_value([np.NaN]) ; tinput=tt.filled()
183	else: tinput=tt
184	all_var[k]=get_tsat(vert,tinput,zlon=lon,zlat=lat,zalt=vert,ztime=time)
185	all_varname[k] = varname
186	else:
187	##### GENERAL STUFF HERE
188	all_var[k] = getfield(nc,varname)
189	all_varname[k] = varname
190	if var2: all_var2[k] = getfield(nc,var2)
191
192	print "********** all_var[k].shape", all_var[k].shape
193	k += 1
194	firstfile = False
195	#### End of for namefile in namefiles
196
197	##################################
198	### Operation on files
199	### ... for the moment only OK when 1 var only
200	if ope is not None:
201	print ope
202	if ope in ["-","+"]:
203	if fileref is not None: all_var[k] = getfield(Dataset(fileref),all_varname[k-1]) ; all_varname[k] = all_varname[k-1]
204	else: errormess("fileref is missing!")
205	if ope == "-": all_var[k+1]= all_var[k-1] - all_var[k]
206	elif ope == "+": all_var[k+1]= all_var[k-1] + all_var[k]
207	all_varname[k+1] = all_varname[k]
208	numplot = numplot+2
209	elif ope in ["cat"]:
210	tab = all_var[0];k = 0
211	while k != len(namefiles)-1:
212	tab = np.append(tab,all_var[k],axis=0)
213	k += 1
214	time = np.arange(0,len(tab),1) ### AS: time reference is simple, should be better
215	all_var[0] = np.array(tab);numplot = 1
216	elif ope is not None:
217	errormess(ope+" : non-implemented operation. Available op. are + and -.")
218
219	##################################
220	### Open a figure and set subplots
221	fig = figure()
222	subv,subh = definesubplot( numplot, fig )
223
224	#################################
225	### Time loop for plotting device
226	found_lct = False;nplot = 1;itime = first;error = False
227	if itstep is None and numplot > 0: itstep = int(24./numplot)
228	elif numplot <= 0: itstep = 1
229
230	print "********************************************"
231	while error is False:
232	print "********** nplot", nplot, "itime",itime,"error",error
233
234	### Which local time ?
235	ltst = localtime ( interv[0]+itimeinterv[1], 0.5(wlon[0]+wlon[1]) )
236
237	### General plot settings
238	#print itime, int(ltst), numplot, nplot
239	if numplot >= 1:
240	if nplot > numplot: break
241	if numplot > 1:
242	if typefile not in ['geo']: subplot(subv,subh,nplot)
243	found_lct = True
244	### If only one local time is requested (numplot < 0)
245	elif numplot <= 0:
246	if int(ltst) + numplot != 0:
247	itime += 1
248	if found_lct is True: break ## because it means LT was found at previous iteration
249	else: continue ## continue to iterate to find the correct LT
250	else:
251	found_lct = True
252
253	### Map projection
254	if mapmode == 1:
255	m = define_proj(proj,wlon,wlat,back=back,blat=blat)
256	x, y = m(lon2d, lat2d)
257
258	####################################################################
259	## get all indexes to be taken into account for this subplot and then reduce field
260	## 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
261	indexlon = getsindex(slon,(nplot-1)%nlon,lon)
262	indexlat = getsindex(slat,((nplot-1)//nlon)%nlat,lat)
263	indexvert = getsindex(svert,((nplot-1)//(nlon*nlat))%nvert,vert)
264	if mapmode == 1 and stime is None:
265	indextime = itime
266	if len(var) != 1 or len(namefiles) != 1: indextime = first
267	else:
268	indextime = getsindex(stime,((nplot-1)//(nlonnlatnvert))%ntime,time)
269
270	if fileref is not None:
271	index_f = ((nplot-1)//(nlonnlatnvert*ntime))%(len(namefiles)+2) ## OK only 1 var, see test in the beginning
272	else:
273	yeah = len(namefiles)*len(var)
274	index_f = ((nplot-1)//(nlonnlatnvert*ntime))%yeah
275	#print nlon, nlat, nvert, ntime
276	#print slon, slat, svert, stime
277	#print index_f
278	#print "index lon,lat,vert,time", max(indexlon), max(indexlat), max(indexvert), max(indextime)
279	#if varname != all_varname[index_f]: indextime = first
280	####################################################################
281
282	ticks = ndiv + 1
283
284	#### Contour plot
285	if var2:
286	what_I_plot, error = reducefield(all_var2[index_f], d4=indextime, d1=indexlon, d2=indexlat , d3=indexvert, yint=yintegral, alt=vert)
287	#what_I_plot = what_I_plot*mult
288	if not error:
289	if mapmode == 1:
290	if typefile in ['mesoapi','meso']: what_I_plot = dumpbdy(what_I_plot,6)
291	zevmin, zevmax = calculate_bounds(what_I_plot)
292	zelevels = np.linspace(zevmin,zevmax,ticks) #20)
293	if var2 == 'HGT': zelevels = np.arange(-10000.,30000.,2000.)
294	if mapmode == 0:
295	x, y = define_axis(lon,lat,vert,time,indexlon,indexlat,indexvert,\
296	indextime,what_I_plot.shape, len(all_var2[index_f].shape),vertmode)
297	### If we plot a 2-D field
298	if len(what_I_plot.shape) is 2:
299	cs = contour(x,y,what_I_plot, zelevels, colors='k', linewidths = 1 ) #0.33 colors='w' )# , alpha=0.5)
300	#if typefile in ['gcm']: clabel(cs,fmt = '%1.2e')
301	### If we plot a 1-D field
302	elif len(what_I_plot.shape) is 1:
303	plot(what_I_plot,x)
304	else:
305	errormess("There is an error in reducing field !")
306
307	#### Shaded plot
308	varname = all_varname[index_f]
309	if varname:
310	what_I_plot, error = reducefield(all_var[index_f], d4=indextime, d1=indexlon, d2=indexlat , d3=indexvert , yint=yintegral, alt=vert)
311	what_I_plot = what_I_plot*mult
312	if not error:
313	fvar = varname
314	###
315	if anomaly:
316	what_I_plot = 100. * ((what_I_plot / smooth(what_I_plot,12)) - 1.)
317	fvar = 'anomaly'
318	#if mult != 1:
319	# fvar = str(mult) + "*" + var
320	###
321	if mapmode == 1:
322	if typefile in ['mesoapi','meso']: what_I_plot = dumpbdy(what_I_plot,6)
323	elif mapmode == 0:
324	what_I_plot, x, y = define_axis(lon,lat,vert,time,indexlon,indexlat,indexvert,\
325	indextime,what_I_plot, len(all_var[index_f].shape),vertmode)
326	if (fileref is not None) and (index_f is numplot-1):
327	zevmin, zevmax = calculate_bounds(what_I_plot,vmin=minop,vmax=maxop)
328	else:
329	zevmin, zevmax = calculate_bounds(what_I_plot,vmin=vmin,vmax=vmax)
330	if colorb in ["def","nobar"]: palette = get_cmap(name=defcolorb(fvar.upper()))
331	elif (fileref is not None) and (index_f is numplot-1): palette = get_cmap(name="RdBu_r")
332	else: palette = get_cmap(name=colorb)
333	##### 2D field
334	if len(what_I_plot.shape) is 2:
335	if not tile:
336	if not hole: what_I_plot = bounds(what_I_plot,zevmin,zevmax)
337	#zelevels = np.linspace(zevmin(1. + 1.e-7),zevmax(1. - 1.e-7)) #,num=20)
338	zelevels = np.linspace(zevmin,zevmax,num=ticks)
339	#contourf(what_I_plot, zelevels, cmap = palette )
340
341	if mapmode == 1:
342	m.contourf( x, y, what_I_plot, zelevels, cmap = palette)
343	elif mapmode == 0:
344	contourf( x, y, what_I_plot, zelevels, cmap = palette)
345
346	zxmin, zxmax = xaxis
347	zymin, zymax = yaxis
348	if zxmin is not None: mpl.pyplot.xlim(xmin=zxmin)
349	if zxmax is not None: mpl.pyplot.xlim(xmax=zxmax)
350	if zymin is not None: mpl.pyplot.ylim(ymin=zymin)
351	if zymax is not None: mpl.pyplot.ylim(ymax=zymax)
352	if invert_y: lima,limb = mpl.pyplot.ylim() ; mpl.pyplot.ylim(limb,lima)
353	if ylog: mpl.pyplot.semilogy()
354
355	else:
356	if hole: what_I_plot = nolow(what_I_plot)
357	pcolor( x, y, what_I_plot, cmap = palette, vmin=zevmin, vmax=zevmax )
358	if colorb != 'nobar' and varname != 'HGT' :
359	if (fileref is not None) and (index_f is numplot-1):
360	colorbar(fraction=0.05,pad=0.03,format="%.3f",\
361	ticks=np.linspace(zevmin,zevmax,num=min([ticks/2+1,20])),\
362	extend='neither',spacing='proportional')
363	else:
364	colorbar(fraction=0.05,pad=0.03,format=fmtvar(fvar.upper()),\
365	ticks=np.linspace(zevmin,zevmax,num=min([ticks/2+1,20])),\
366	extend='neither',spacing='proportional')
367
368	# both min max neither
369	##### 1D field
370	elif len(what_I_plot.shape) is 1:
371	plot(x,what_I_plot)
372	#### Other cases: (maybe plot 3-D field one day or movie ??)
373	else:
374	print "WARNING!!! ",len(what_I_plot.shape),"-D PLOT NOT SUPPORTED !!!"
375	print "field dimensions: ", what_I_plot.shape
376	exit()
377
378	else:
379	errormess("There is an error in reducing field !")
380
381	### Vector plot --- a adapter
382	if winds:
383	vecx, error = reducefield( getfield(nc,uchar), d4=indextime, d3=indexvert , yint=yintegral , alt=vert)
384	vecy, error = reducefield( getfield(nc,vchar), d4=indextime, d3=indexvert , yint=yintegral , alt=vert)
385	#what_I_plot, error = reducefield(all_var[index_f], d4=indextime, d1=indexlon, d2=indexlat , d3=indexvert )
386	if not error:
387	if typefile in ['mesoapi','meso']:
388	[vecx,vecy] = [dumpbdy(vecx,6,stag=uchar), dumpbdy(vecy,6,stag=vchar)]
389	key = True
390	elif typefile in ['gcm']:
391	key = False
392	if metwind: [vecx,vecy] = m.rotate_vector(vecx, vecy, lon2d, lat2d)
393	if varname == False: colorvec = definecolorvec(back)
394	else: colorvec = definecolorvec(colorb)
395	vectorfield(vecx, vecy,\
396	x, y, stride=stride, csmooth=2,\
397	#scale=15., factor=300., color=colorvec, key=key)
398	scale=20., factor=250., color=colorvec, key=key)
399	#200. ## or csmooth=stride
400
401	### Next subplot
402	basename = getname(var=varname,winds=winds,anomaly=anomaly)
403	if typefile in ['mesoapi','meso']:
404	plottitle = basename
405	if addchar: plottitle = plottitle + addchar + "_LT"+str(ltst)
406	else: plottitle = plottitle + "_LT"+str(ltst)
407	else:
408	if fileref is not None:
409	if index_f is numplot-1:
410	plottitle = basename+' '+"fig(1) "+ope+" fig(2)"
411	elif index_f is numplot-2:
412	plottitle = basename+' '+fileref
413	else:
414	plottitle = basename+' '+namefiles[0]#index_f]
415	else:
416	plottitle = basename+' '+namefiles[0]#index_f]
417	if mult != 1: plottitle = str(mult) + "*" + plottitle
418	if zetitle != "fill":
419	plottitle = zetitle
420	if titleref is "fill":
421	titleref=zetitle
422	if fileref is not None:
423	if index_f is numplot-2:
424	plottitle = titleref
425	if index_f is numplot-1:
426	plottitle = "fig(1) "+ope+" fig(2)"
427	# if indexlon is not None:
428	# plottitle = plottitle + " lon: " + str(min(lon[indexlon])) +" "+ str(max(lon[indexlon]))
429	# if indexlat is not None:
430	# plottitle = plottitle + " lat: " + str(min(lat[indexlat])) +" "+ str(max(lat[indexlat]))
431	# if indexvert is not None:
432	# plottitle = plottitle + " vert: " + str(min(vert[indexvert])) +" "+ str(max(vert[indexvert]))
433	# if indextime is not None:
434	# plottitle = plottitle + " time: " + str(min(time[indextime])) +" "+ str(max(time[indextime]))
435	title( plottitle )
436	itime += itstep
437	if nplot >= numplot:
438	error = True
439	nplot += 1
440
441
442
443
444
445
446
447
448	##########################################################################
449	### Save the figure in a file in the data folder or an user-defined folder
450	if outputname is None:
451	if typefile in ['meso','mesoapi']: prefix = getprefix(nc)
452	elif typefile in ['gcm']: prefix = 'LMD_GCM_'
453	else: prefix = ''
454	###
455	zeplot = prefix + basename
456	if addchar: zeplot = zeplot + addchar
457	if numplot <= 0: zeplot = zeplot + "_LT"+str(abs(numplot))
458	###
459	if not target: zeplot = namefile[0:find(namefile,'wrfout')] + zeplot
460	else: zeplot = target + "/" + zeplot
461	###
462	else:
463	zeplot=outputname
464
465	if found_lct:
466	pad_inches_value = 0.35
467	print "********** SAVE ", save
468	if save == 'png':
469	if display: makeplotres(zeplot,res=100.,pad_inches_value=pad_inches_value) #,erase=True) ## a miniature
470	makeplotres(zeplot,res=resolution,pad_inches_value=pad_inches_value,disp=False)
471	elif save in ['eps','svg','pdf']:
472	makeplotres(zeplot, pad_inches_value=pad_inches_value,disp=False,ext=save)
473	elif save == 'gui':
474	show()
475	else:
476	print "INFO: save mode not supported. using gui instead."
477	show()
478	else: print "!!! Local time not found"
479
480	###############
481	### Now the end
482	return zeplot

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