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source: trunk/MESOSCALE_DEV/PLOT/PYTHON/scripts/winds.py @ 245

Last change on this file since 245 was 244, checked in by aslmd, 14 years ago
MESOSCALE: graphics. added full words options to winds.py, added ndiv keyword.
Property svn:executable set to ``*
File size: 17.3 KB

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1	#!/usr/bin/env python
2
3	### A. Spiga -- LMD -- 30/06/2011 to 10/07/2011
4	### Thanks to A. Colaitis for the parser trick
5
6
7	####################################
8	####################################
9	### The main program to plot vectors
10	def winds (namefile,\
11	nvert,\
12	proj=None,\
13	back=None,\
14	target=None,
15	stride=3,\
16	numplot=2,\
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
34	####################################################################################################################
35	### Colorbars http://www.scipy.org/Cookbook/Matplotlib/Show_colormaps?action=AttachFile&do=get&target=colormaps3.png
36
37	#################################
38	### Load librairies and functions
39	from netCDF4 import Dataset
40	from myplot import getcoord2d,define_proj,makeplotres,simplinterv,vectorfield,ptitle,latinterv,getproj,wrfinterv,dumpbdy,\
41	fmtvar,definecolorvec,defcolorb,getprefix,putpoints,calculate_bounds,errormess,definesubplot,\
42	zoomset,getcoorddef,getwinddef,whatkindfile,reducefield,bounds,getstralt,getfield,smooth,nolow
43	from mymath import deg,max,min,mean
44	from matplotlib.pyplot import contour,contourf, subplot, figure, rcParams, savefig, colorbar, pcolor, show
45	from matplotlib.cm import get_cmap
46	import numpy as np
47	from numpy.core.defchararray import find
48
49	#if save == 'eps': rcParams['backend'] = 'PS'
50
51	######################
52	### Load NETCDF object
53	nc = Dataset(namefile)
54
55	##################################
56	### Initial checks and definitions
57	typefile = whatkindfile(nc) ## TYPEFILE
58	if var not in nc.variables: var = False ## VAR
59	if winds: ## WINDS
60	[uchar,vchar,metwind] = getwinddef(nc)
61	if uchar == 'not found': winds = False
62	[lon2d,lat2d] = getcoorddef(nc) ## COORDINATES, could be moved below
63	if proj == None: proj = getproj(nc) ## PROJECTION
64
65	##########################
66	### Define plot boundaries
67	if proj == "npstere": [wlon,wlat] = latinterv("North_Pole")
68	elif proj == "spstere": [wlon,wlat] = latinterv("Far_South_Pole")
69	elif proj in ["lcc","laea"]: [wlon,wlat] = wrfinterv(lon2d,lat2d)
70	else: [wlon,wlat] = simplinterv(lon2d,lat2d)
71	if zoom: [wlon,wlat] = zoomset(wlon,wlat,zoom)
72
73	#########################################
74	### Name for title and graphics save file
75	if var and winds: basename = var + '_UV'
76	elif var: basename = var
77	elif winds: basename = 'UV'
78	else:
79	print nc.variables
80	errormess("please set at least winds or var")
81	if anomaly: basename = 'd' + basename
82	basename = basename + getstralt(nc,nvert) ## can be moved elsewhere for a more generic routine
83
84	##################################
85	### Open a figure and set subplots
86	fig = figure()
87	sub = definesubplot( numplot, fig )
88
89	#################################
90	### Time loop for plotting device
91	found_lct = False
92	itime = 0 ## could be an argument
93	nplot = 1
94	error = False
95	if itstep is None and numplot > 0: itstep = int(24./numplot)
96	elif numplot <= 0: itstep = 1
97	while error is False:
98
99	### Which local time ?
100	#print interv[0], interv[1], itime
101	ltst = ( interv[0] + 0.5(wlon[0]+wlon[1])/15.) + itimeinterv[1]
102	ltst = int (ltst * 10) / 10.
103	ltst = ltst % 24
104
105	### General plot settings
106	#print itime, int(ltst), numplot, nplot
107	if numplot >= 1:
108	if nplot > numplot: break
109	if numplot > 1:
110	if typefile not in ['geo']: subplot(sub+nplot-1)
111
112	found_lct = True
113	### If only one local time is requested (numplot < 0)
114	elif numplot <= 0:
115	if int(ltst) + numplot != 0:
116	itime += 1
117	if found_lct is True: break ## because it means LT was found at previous iteration
118	else: continue ## continue to iterate to find the correct LT
119	else:
120	found_lct = True
121
122	### Map projection
123	m = define_proj(proj,wlon,wlat,back=back)
124	x, y = m(lon2d, lat2d)
125
126	#### Contour plot
127	if var2:
128	what_I_contour, error = reducefield( getfield(nc,var2), d4=itime, d3=nvert )
129	if not error:
130	if typefile in ['mesoapi','meso']: what_I_contour = dumpbdy(what_I_contour,6)
131	zevmin, zevmax = calculate_bounds(what_I_contour)
132	zelevels = np.linspace(zevmin,zevmax,num=20)
133	if var2 == 'HGT': zelevels = np.arange(-10000.,30000.,2000.)
134	contour( x, y, what_I_contour, zelevels, colors='k', linewidths = 0.33 ) #colors='w' )# , alpha=0.5)
135
136	#### Shaded plot
137	if var:
138	what_I_plot, error = reducefield( getfield(nc,var), d4=itime, d3=nvert )
139	if not error:
140	fvar = var
141	###
142	if anomaly:
143	what_I_plot = 100. * ((what_I_plot / smooth(what_I_plot,12)) - 1.)
144	fvar = 'anomaly'
145	###
146	if typefile in ['mesoapi','meso']: what_I_plot = dumpbdy(what_I_plot,6)
147	zevmin, zevmax = calculate_bounds(what_I_plot,vmin=vmin,vmax=vmax)
148	if colorb in ["def","nobar"]: palette = get_cmap(name=defcolorb(fvar))
149	else: palette = get_cmap(name=colorb)
150	if not tile:
151	if not hole: what_I_plot = bounds(what_I_plot,zevmin,zevmax)
152	zelevels = np.linspace(zevmin,zevmax) #,num=20)
153	contourf( x, y, what_I_plot, zelevels, cmap = palette )
154	else:
155	if hole: what_I_plot = nolow(what_I_plot)
156	pcolor( x, y, what_I_plot, cmap = palette, \
157	vmin=zevmin, vmax=zevmax )
158	if colorb != 'nobar' and var != 'HGT':
159	colorbar(fraction=0.05,pad=0.1,format=fmtvar(fvar),\
160	ticks=np.linspace(zevmin,zevmax,ndiv+1),\
161	extend='neither',spacing='proportional')
162	# both min max neither
163
164	### Vector plot
165	if winds:
166	vecx, error = reducefield( getfield(nc,uchar), d4=itime, d3=nvert )
167	vecy, error = reducefield( getfield(nc,vchar), d4=itime, d3=nvert )
168	if not error:
169	if typefile in ['mesoapi','meso']:
170	[vecx,vecy] = [dumpbdy(vecx,6,stag=uchar), dumpbdy(vecy,6,stag=vchar)]
171	key = True
172	elif typefile in ['gcm']:
173	key = False
174	if metwind: [vecx,vecy] = m.rotate_vector(vecx, vecy, lon2d, lat2d)
175	if var == False: colorvec = definecolorvec(back)
176	else: colorvec = definecolorvec(colorb)
177	vectorfield(vecx, vecy,\
178	x, y, stride=stride, csmooth=2,\
179	scale=15., factor=300., color=colorvec, key=key)
180	#200. ## or csmooth=stride
181
182	### Next subplot
183	plottitle = basename
184	if typefile in ['mesoapi','meso']:
185	if addchar: plottitle = plottitle + addchar + "_LT"+str(ltst)
186	else: plottitle = plottitle + "_LT"+str(ltst)
187	ptitle( plottitle )
188	itime += itstep
189	nplot += 1
190
191	##########################################################################
192	### Save the figure in a file in the data folder or an user-defined folder
193	if typefile in ['meso','mesoapi']: prefix = getprefix(nc)
194	elif typefile in ['gcm']: prefix = 'LMD_GCM_'
195	else: prefix = ''
196	###
197	zeplot = prefix + basename
198	if addchar: zeplot = zeplot + addchar
199	if numplot <= 0: zeplot = zeplot + "_LT"+str(abs(numplot))
200	###
201	if not target: zeplot = namefile[0:find(namefile,'wrfout')] + zeplot
202	else: zeplot = target + "/" + zeplot
203	###
204	if found_lct:
205	pad_inches_value = 0.35
206	if save == 'png':
207	makeplotres(zeplot,res=100.,pad_inches_value=pad_inches_value) #,erase=True) ## a miniature
208	makeplotres(zeplot,res=200.,pad_inches_value=pad_inches_value,disp=False)
209	elif save in ['eps','svg','pdf']:
210	makeplotres(zeplot, pad_inches_value=pad_inches_value,disp=False,ext=save)
211	elif save == 'gui':
212	show()
213	else:
214	print "save mode not supported. using gui instead."
215	show()
216	else: print "Local time not found"
217
218	###############
219	### Now the end
220	return zeplot
221
222	##############################
223	### A specific stuff for below
224	def adjust_length (tab, zelen):
225	from numpy import ones
226	if tab is None:
227	outtab = ones(zelen) * -999999
228	else:
229	if zelen != len(tab):
230	print "not enough or too much values... setting same values all variables"
231	outtab = ones(zelen) * tab[0]
232	else:
233	outtab = tab
234	return outtab
235
236	###########################################################################################
237	###########################################################################################
238	### What is below relate to running the file as a command line executable (very convenient)
239	if __name__ == "__main__":
240	import sys
241	from optparse import OptionParser ### to be replaced by argparse
242	from api_wrapper import api_onelevel
243	from netCDF4 import Dataset
244	from myplot import getlschar
245	from os import system
246
247	#############################
248	### Get options and variables
249	parser = OptionParser()
250	parser.add_option('-f', '--file', action='append',dest='namefile', type="string", default=None, help='[NEEDED] name of WRF file (append)')
251	parser.add_option('-l', '--level', action='store',dest='nvert', type="float", default=0, help='level (def=0)(-i 2: p,mbar)(-i 3,4: z,km)')
252	parser.add_option('-p', '--proj', action='store',dest='proj', type="string", default=None, help='projection')
253	parser.add_option('-b', '--back', action='store',dest='back', type="string", default=None, help='background image (def: None)')
254	parser.add_option('-t', '--target', action='store',dest='target', type="string", default=None, help='destination folder')
255	parser.add_option('-s', '--stride', action='store',dest='stride', type="int", default=3, help='stride vectors (def=3)')
256	parser.add_option('-v', '--var', action='append',dest='var', type="string", default=None, help='variable color-shaded (append)')
257	parser.add_option('-n', '--num', action='store',dest='numplot', type="int", default=2, help='plot number (def=2)(<0: plot LT -numplot)')
258	parser.add_option('-i', '--interp', action='store',dest='interp', type="int", default=None, help='interpolation (2: p, 3: z-amr, 4:z-als)')
259	parser.add_option('-c', '--color', action='store',dest='colorb', type="string", default="def", help='change colormap (nobar: no colorbar)')
260	parser.add_option('-x', '--no-vect',action='store_false',dest='winds', default=True, help='no wind vectors')
261	parser.add_option('-m', '--min', action='append',dest='vmin', type="float", default=None, help='bounding minimum value (append)')
262	parser.add_option('-M', '--max', action='append',dest='vmax', type="float", default=None, help='bounding maximum value (append)')
263	parser.add_option('-T', '--tiled', action='store_true',dest='tile', default=False, help='draw a tiled plot (no blank zone)')
264	parser.add_option('-z', '--zoom', action='store',dest='zoom', type="float", default=None, help='zoom factor in %')
265	parser.add_option('-N', '--no-api', action='store_true',dest='nocall', default=False, help='do not recreate api file')
266	parser.add_option('-d', '--display',action='store_false',dest='display', default=True, help='do not pop up created images')
267	parser.add_option('-e', '--itime', action='store',dest='itstep', type="int", default=None, help='stride time (def=4)')
268	parser.add_option('-H', '--hole', action='store_true',dest='hole', default=False, help='holes above max and below min')
269	parser.add_option('-S', '--save', action='store',dest='save', type="string", default="gui", help='save mode (png,eps,svg,pdf or gui)(def=gui)')
270	parser.add_option('-a', '--anomaly',action='store_true',dest='anomaly', default=False, help='compute and plot relative anomaly in %')
271	parser.add_option('-w', '--with', action='store',dest='var2', type="string", default=None, help='variable contoured')
272	parser.add_option('--div', action='store',dest='ndiv', type="int", default=10, help='number of divisions in colorbar (def: 10)')
273	#parser.add_option('-V', action='store', dest='comb', type="float", default=None, help='a defined combination of variables')
274	(opt,args) = parser.parse_args()
275	if opt.namefile is None:
276	print "I want to eat one file at least ! Use winds.py -f name_of_my_file. Or type winds.py -h"
277	exit()
278	if opt.var is None and opt.anomaly is True:
279	print "Cannot ask to compute anomaly if no variable is set"
280	exit()
281	print "Options:", opt
282
283	listvar = ''
284	if opt.var is None:
285	zerange = [-999999]
286	else:
287	zelen = len(opt.var)
288	zerange = range(zelen)
289	#if zelen == 1: listvar = opt.var[0] + ','
290	#else :
291	for jjj in zerange: listvar += opt.var[jjj] + ','
292	listvar = listvar[0:len(listvar)-1]
293	vmintab = adjust_length (opt.vmin, zelen)
294	vmaxtab = adjust_length (opt.vmax, zelen)
295
296	for i in range(len(opt.namefile)):
297
298	zefile = opt.namefile[i]
299	print zefile
300	zelevel = opt.nvert
301	stralt = None
302	[lschar,zehour,zehourin] = getlschar ( zefile ) ## getlschar from wrfout (or simply return "" if another file)
303
304	#####################################################
305	### Call Fortran routines for vertical interpolations
306	if opt.interp is not None:
307	if opt.nvert is 0 and opt.interp is 4: zelevel = 0.010
308	### winds or no winds
309	if opt.winds : zefields = 'uvmet'
310	else : zefields = ''
311	### var or no var
312	#if opt.var is None : pass
313	if zefields == '' : zefields = listvar
314	else : zefields = zefields + "," + listvar
315	if opt.var2 is not None : zefields = zefields + "," + opt.var2
316	print zefields
317	zefile = api_onelevel ( path_to_input = '', \
318	input_name = zefile, \
319	fields = zefields, \
320	interp_method = opt.interp, \
321	onelevel = zelevel, \
322	nocall = opt.nocall )
323	print zefile
324	zelevel = 0 ## so that zelevel could play again the role of nvert
325
326	if opt.var is None: zerange = [-999999]
327	else: zerange = range(zelen)
328	for jjj in zerange:
329	if jjj == -999999:
330	argvar = None
331	argvmin = None
332	argvmax = None
333	else:
334	argvar = opt.var[jjj]
335	if vmintab[jjj] != -999999: argvmin = vmintab[jjj]
336	else: argvmin = None
337	if vmaxtab[jjj] != -999999: argvmax = vmaxtab[jjj]
338	else: argvmax = None
339	#############
340	### Main call
341	name = winds (zefile,int(zelevel),\
342	proj=opt.proj,back=opt.back,target=opt.target,stride=opt.stride,var=argvar,\
343	numplot=opt.numplot,colorb=opt.colorb,winds=opt.winds,\
344	addchar=lschar,interv=[zehour,zehourin],vmin=argvmin,vmax=argvmax,\
345	tile=opt.tile,zoom=opt.zoom,display=opt.display,\
346	itstep=opt.itstep,hole=opt.hole,save=opt.save,\
347	anomaly=opt.anomaly,var2=opt.var2,ndiv=opt.ndiv)
348	print 'Done: '+name
349	system("rm -f to_be_erased")
350
351	#########################################################
352	### Generate a .sh file with the used command saved in it
353	command = ""
354	for arg in sys.argv: command = command + arg + ' '
355	f = open(name+'.sh', 'w')
356	f.write(command)

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