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planetoplot.py @ 349

Last change on this file since 349 was 349, checked in by aslmd, 14 years ago

PYTHON GRAPHICS: A REFERENCE VERSION FOR BOTH GCM AND MESOSCALE USE!

Merged recent changes by TN for better GCM handling + 1D/2D plots with AS mesoscale version [winds.py]

Now

there is a common function named planetoplot in planetoplot.py which supports both GCM and mesoscale plots

this will be a common reference for future development
mesoscale users might want to use the script meso.py
GCM users might want to use the script gcm.py

Todo

a few capabilities that were in winds.py are broken in meso.py, this will be fixed soon. the 'old' reference script winds.py is still here anyway!
there is still a bug with 'ortho' projection with GCM fields. still searching...

Misc

A few modifications were done in myplot.py and mymath.py
Added a simple stupid little.py script illustrating very simple use of Python graphics
Added the script doing statistical analysis for dust devils

Property svn:executable set to *

File size: 16.2 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
8	def planetoplot (namefiles,\
9	vertmode,\
10	proj=None,\
11	back=None,\
12	target=None,
13	stride=3,\
14	numplot=2,\
15	var=None,\
16	colorb="def",\
17	winds=True,\
18	addchar=None,\
19	interv=[0,1],\
20	vmin=None,\
21	vmax=None,\
22	tile=False,\
23	zoom=None,\
24	display=True,\
25	itstep=None,\
26	hole=False,\
27	save="gui",\
28	anomaly=False,\
29	var2=None,\
30	ndiv=10,\
31	first=1,\
32	mult=1.,\
33	zetitle="fill",\
34	slon=None,\
35	slat=None,\
36	svert=None,\
37	stime=None):
38
39	####################################################################################################################
40	### Colorbars http://www.scipy.org/Cookbook/Matplotlib/Show_colormaps?action=AttachFile&do=get&target=colormaps3.png
41
42	#################################
43	### Load librairies and functions
44	from netCDF4 import Dataset
45	from myplot import getcoord2d,define_proj,makeplotres,simplinterv,vectorfield,ptitle,latinterv,getproj,wrfinterv,dumpbdy,\
46	fmtvar,definecolorvec,defcolorb,getprefix,putpoints,calculate_bounds,errormess,definesubplot,\
47	zoomset,getcoorddef,getwinddef,whatkindfile,reducefield,bounds,getstralt,getfield,smooth,nolow,\
48	getname,localtime,polarinterv,getsindex,define_axis,determineplot
49	from mymath import deg,max,min,mean
50	from matplotlib.pyplot import contour,contourf, subplot, figure, rcParams, savefig, colorbar, pcolor, show, plot, clabel
51	from matplotlib.cm import get_cmap
52	import numpy as np
53	from numpy.core.defchararray import find
54
55	################################
56	### Which plot needs to be done?
57	nlon, nlat, nvert, ntime, mapmode, nslices = determineplot(slon, slat, svert, stime)
58	if mapmode == 0: winds=False
59	if not isinstance(namefiles, np.ndarray): namefiles = [namefiles]
60	zelen = len(namefiles)
61	numplot = zelen*nslices
62	print "len(namefiles), nslices, numplot: ", zelen, nslices, numplot
63	all_var = [[]]*zelen
64	all_var2 = [[]]*zelen
65	all_title = [[]]*zelen
66
67	#########################
68	### Loop over the files initially separated by comas to be plotted on the same figure
69	k = 0
70	firstfile = True
71	for namefile in namefiles:
72
73	######################
74	### Load NETCDF object
75	nc = Dataset(namefile)
76
77	##################################
78	### Initial checks and definitions
79	### ... TYPEFILE
80	typefile = whatkindfile(nc)
81	if firstfile:
82	typefile0 = typefile
83	elif typefile != typefile0:
84	errormess("Not the same kind of files !", [typefile0, typefile])
85	### ... VAR
86	if var not in nc.variables: var = False
87	### ... WINDS
88	if winds:
89	[uchar,vchar,metwind] = getwinddef(nc)
90	if uchar == 'not found': winds = False
91	if not var and not winds: errormess("please set at least winds or var",printvar=nc.variables)
92	### ... COORDINATES, could be moved below
93	[lon2d,lat2d] = getcoorddef(nc)
94	### ... PROJECTION
95	if proj == None: proj = getproj(nc)
96
97	##########################################################
98	if typefile == "gcm":
99	lat = nc.variables["latitude"][:]
100	lon = nc.variables["longitude"][:]
101	time = nc.variables["Time"][:]
102	vert = nc.variables["altitude"][:]
103	#if firstfile:
104	# lat0 = lat
105	#elif len(lat0) != len(lat):
106	# errormess("Not the same latitude lengths !", [len(lat0), len(lat)])
107	#elif sum((lat == lat0) == False) != 0:
108	# errormess("Not the same latitudes !", [lat,lat0])
109	## Faire d'autre checks sur les compatibilites entre fichiers!!
110	##########################################################
111
112	if firstfile:
113	##########################
114	### Define plot boundaries
115	### todo: possible areas in latinterv in argument (ex: "Far_South_Pole")
116	if proj in ["npstere","spstere"]: [wlon,wlat] = polarinterv(lon2d,lat2d)
117	elif proj in ["lcc","laea"]: [wlon,wlat] = wrfinterv(lon2d,lat2d)
118	else: [wlon,wlat] = simplinterv(lon2d,lat2d)
119	if zoom: [wlon,wlat] = zoomset(wlon,wlat,zoom)
120
121	#########################################
122	### Name for title and graphics save file
123	basename = getname(var=var,winds=winds,anomaly=anomaly)
124	basename = basename + getstralt(nc,vertmode) ## can be moved elsewhere for a more generic routine
125
126	print "var, var2: ", var, var2
127	if var: all_var[k] = getfield(nc,var)
128	if var2: all_var2[k] = getfield(nc,var2)
129
130	print "k", k
131	print "all_var[k].shape", all_var[k].shape
132	k += 1
133	firstfile = False
134	#### End of for namefile in namefiles
135
136
137	##################################
138	### Open a figure and set subplots
139	fig = figure()
140	subv,subh = definesubplot( numplot, fig )
141
142	#################################
143	### Time loop for plotting device
144	found_lct = False
145	nplot = 1
146	itime = first
147	error = False
148	if itstep is None and numplot > 0: itstep = int(24./numplot)
149	elif numplot <= 0: itstep = 1
150
151	#for nplot in range(numplot):
152	while error is False:
153	print "nplot", nplot
154	print error
155
156	### Which local time ?
157	ltst = localtime ( interv[0]+itimeinterv[1], 0.5(wlon[0]+wlon[1]) )
158
159	### General plot settings
160	#print itime, int(ltst), numplot, nplot
161	if numplot >= 1:
162	if nplot > numplot: break
163	if numplot > 1:
164	if typefile not in ['geo']: subplot(subv,subh,nplot)
165	found_lct = True
166	### If only one local time is requested (numplot < 0)
167	elif numplot <= 0:
168	if int(ltst) + numplot != 0:
169	itime += 1
170	if found_lct is True: break ## because it means LT was found at previous iteration
171	else: continue ## continue to iterate to find the correct LT
172	else:
173	found_lct = True
174
175	### Map projection
176	if mapmode == 1:
177	m = define_proj(proj,wlon,wlat,back=back)
178	x, y = m(lon2d, lat2d)
179
180	####################################################################
181	if typefile in ['mesoapi','meso']:
182	indexlon = None
183	indexlat = None
184	indexvert = vertmode
185	indextime = itime
186	nlon = 1
187	nlat = 1
188	nvert = 1
189	ntime = 1
190	index_f = ((nplot-1)//(nlonnlatnvert*ntime))%len(namefiles)
191	print "index lon,lat,vert,time", max(indexlon), max(indexlat), max(indexvert), max(indextime)
192	elif typefile in ['gcm']:
193	## get all indexes to be taken into account for this subplot and then reduce field
194	## 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
195	#print "(nplot-1)%nlon", (nplot-1)%nlon
196	indexlon = getsindex(slon,(nplot-1)%nlon,lon)
197	print "indexlon", indexlon
198	indexlat = getsindex(slat,((nplot-1)//nlon)%nlat,lat)
199	indexvert = getsindex(svert,((nplot-1)//(nlon*nlat))%nvert,vert)
200	indextime = getsindex(stime,((nplot-1)//(nlonnlatnvert))%ntime,time)
201	index_f = ((nplot-1)//(nlonnlatnvert*ntime))%len(namefiles)
202	#print "index lon,lat,vert,time", max(indexlon), max(indexlat), max(indexvert), max(indextime)
203	####################################################################
204
205	#### Contour plot
206	if var2:
207	what_I_plot, error = reducefield(all_var2[index_f], d4=indextime, d1=indexlon, d2=indexlat , d3=indexvert )
208	#what_I_plot = what_I_plot*mult
209	if not error:
210	if typefile in ['mesoapi','meso']: what_I_plot = dumpbdy(what_I_plot,6)
211	zevmin, zevmax = calculate_bounds(what_I_plot)
212	zelevels = np.linspace(zevmin,zevmax,num=ndiv+1) #20)
213	if var2 == 'HGT': zelevels = np.arange(-10000.,30000.,2000.)
214	if mapmode == 0:
215	x, y = define_axis(lon,lat,vert,time,indexlon,indexlat,indexvert,\
216	indextime,what_I_plot.shape, len(all_var[index_f].shape),vertmode)
217	### If we plot a 2-D field
218	if len(what_I_plot.shape) is 2:
219	cs = contour(x,y,what_I_plot, zelevels, colors='k', linewidths = 1 ) #0.33 colors='w' )# , alpha=0.5)
220	if typefile in ['gcm']: clabel(cs,fmt = '%1.2e')
221	### If we plot a 1-D field
222	elif len(what_I_plot.shape) is 1:
223	plot(x,y,what_I_plot, zelevels, colors='g', linewidths = 0.33 ) #colors='w' )# , alpha=0.5)
224	else:
225	errormess("There is an error in reducing field !")
226
227	#### Shaded plot
228	if var:
229	what_I_plot, error = reducefield(all_var[index_f], d4=indextime, d1=indexlon, d2=indexlat , d3=indexvert )
230	what_I_plot = what_I_plot*mult
231
232	if not error:
233	fvar = var
234	###
235	if anomaly:
236	what_I_plot = 100. * ((what_I_plot / smooth(what_I_plot,12)) - 1.)
237	fvar = 'anomaly'
238	#if mult != 1:
239	# fvar = str(mult) + "*" + var
240	###
241	if typefile in ['mesoapi','meso']: what_I_plot = dumpbdy(what_I_plot,6)
242	zevmin, zevmax = calculate_bounds(what_I_plot,vmin=vmin,vmax=vmax)
243	if colorb in ["def","nobar"]: palette = get_cmap(name=defcolorb(fvar.upper()))
244	else: palette = get_cmap(name=colorb)
245	### If we plot a 2-D field
246	if len(what_I_plot.shape) is 2:
247	if mapmode == 0:
248	what_I_plot, x, y = define_axis(lon,lat,vert,time,indexlon,indexlat,indexvert,\
249	indextime,what_I_plot, len(all_var[index_f].shape),vertmode)
250	if not tile:
251	if not hole: what_I_plot = bounds(what_I_plot,zevmin,zevmax)
252	#zelevels = np.linspace(zevmin(1. + 1.e-7),zevmax(1. - 1.e-7)) #,num=20)
253	print "what_I_plot.shape", what_I_plot.shape
254	print "x.shape, y.shape", x.shape, y.shape
255	zelevels = np.linspace(zevmin,zevmax,num=ndiv+1)
256	#contourf(what_I_plot, zelevels, cmap = palette )
257	contourf(x,y,what_I_plot, zelevels, cmap = palette )
258	else:
259	if hole: what_I_plot = nolow(what_I_plot)
260	pcolor(x,y,what_I_plot, cmap = palette, \
261	vmin=zevmin, vmax=zevmax )
262	if colorb != 'nobar' and var != 'HGT' :
263	#subplot(111)
264	#colorbar()
265	colorbar(fraction=0.05,pad=0.03,format=fmtvar(fvar.upper()),\
266	ticks=np.linspace(zevmin,zevmax,min([ndiv+1,20])),\
267	extend='neither',spacing='proportional')
268	# both min max neither
269	### If we plot a 1-D field
270	elif len(what_I_plot.shape) is 1:
271	what_I_plot,x,y = define_axis(lon,lat,vert,time,indexlon,indexlat,indexvert,\
272	indextime,what_I_plot,len(all_var[index_f].shape),vertmode)
273	# x = np.array(x)
274	# y = np.array(y)
275	print "what_I_plot.shape", what_I_plot.shape
276	print "x.shape", x.shape
277	plot(x,what_I_plot)
278	### If we plot something that is not a 2-D or 1-D field
279	### (maybe plot 3-D field one day or movie ??)
280	else:
281	print "WARNING!!! ",len(what_I_plot.shape),"-D PLOT NOT SUPPORTED !!!"
282	print "field dimensions: ", what_I_plot.shape
283	exit()
284
285	else:
286	errormess("There is an error in reducing field !")
287
288	### Vector plot --- a adapter
289	if winds:
290	vecx, error = reducefield( getfield(nc,uchar), d4=indextime, d3=indexvert )
291	vecy, error = reducefield( getfield(nc,vchar), d4=indextime, d3=indexvert )
292	#what_I_plot, error = reducefield(all_var[index_f], d4=indextime, d1=indexlon, d2=indexlat , d3=indexvert )
293	if not error:
294	if typefile in ['mesoapi','meso']:
295	[vecx,vecy] = [dumpbdy(vecx,6,stag=uchar), dumpbdy(vecy,6,stag=vchar)]
296	key = True
297	elif typefile in ['gcm']:
298	key = False
299	if metwind: [vecx,vecy] = m.rotate_vector(vecx, vecy, lon2d, lat2d)
300	if var == False: colorvec = definecolorvec(back)
301	else: colorvec = definecolorvec(colorb)
302	vectorfield(vecx, vecy,\
303	x, y, stride=stride, csmooth=2,\
304	#scale=15., factor=300., color=colorvec, key=key)
305	scale=20., factor=250., color=colorvec, key=key)
306	#200. ## or csmooth=stride
307
308	### Next subplot
309	if typefile in ['mesoapi','meso']:
310	plottitle = basename
311	if addchar: plottitle = plottitle + addchar + "_LT"+str(ltst)
312	else: plottitle = plottitle + "_LT"+str(ltst)
313	else:
314	plottitle = basename+' '+namefiles[index_f]
315	if mult != 1: plottitle = str(mult) + "*" + plottitle
316	if zetitle != "fill": plottitle = zetitle
317	# if indexlon is not None:
318	# plottitle = plottitle + " lon: " + str(min(lon[indexlon])) +" "+ str(max(lon[indexlon]))
319	# if indexlat is not None:
320	# plottitle = plottitle + " lat: " + str(min(lat[indexlat])) +" "+ str(max(lat[indexlat]))
321	# if indexvert is not None:
322	# plottitle = plottitle + " vert: " + str(min(vert[indexvert])) +" "+ str(max(vert[indexvert]))
323	# if indextime is not None:
324	# plottitle = plottitle + " time: " + str(min(time[indextime])) +" "+ str(max(time[indextime]))
325	ptitle( plottitle )
326	itime += itstep
327	if nplot >= numplot:
328	error = True
329	nplot += 1
330
331
332
333
334
335
336
337
338	##########################################################################
339	### Save the figure in a file in the data folder or an user-defined folder
340	if typefile in ['meso','mesoapi']: prefix = getprefix(nc)
341	elif typefile in ['gcm']: prefix = 'LMD_GCM_'
342	else: prefix = ''
343	###
344	zeplot = prefix + basename
345	if addchar: zeplot = zeplot + addchar
346	if numplot <= 0: zeplot = zeplot + "_LT"+str(abs(numplot))
347	###
348	if not target: zeplot = namefile[0:find(namefile,'wrfout')] + zeplot
349	else: zeplot = target + "/" + zeplot
350	###
351	if found_lct:
352	pad_inches_value = 0.35
353	print "save", save
354	if save == 'png':
355	if display: makeplotres(zeplot,res=100.,pad_inches_value=pad_inches_value) #,erase=True) ## a miniature
356	makeplotres(zeplot,res=200.,pad_inches_value=pad_inches_value,disp=False)
357	elif save in ['eps','svg','pdf']:
358	makeplotres(zeplot, pad_inches_value=pad_inches_value,disp=False,ext=save)
359	elif save == 'gui':
360	show()
361	else:
362	print "save mode not supported. using gui instead."
363	show()
364	else: print "Local time not found"
365
366	###############
367	### Now the end
368	return zeplot

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source: trunk/MESOSCALE/LMD_MM_MARS/SRC/PYTHON/planetoplot.py @ 349

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