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source: trunk/MESOSCALE_DEV/PLOT/PYTHON/scripts/winds.py @ 254

Last change on this file since 254 was 254, checked in by aslmd, 13 years ago
MESOSCALE: graphical program. more control on the plot + GCM case.
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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	first=1):
34
35	####################################################################################################################
36	### Colorbars http://www.scipy.org/Cookbook/Matplotlib/Show_colormaps?action=AttachFile&do=get&target=colormaps3.png
37
38	#################################
39	### Load librairies and functions
40	from netCDF4 import Dataset
41	from myplot import getcoord2d,define_proj,makeplotres,simplinterv,vectorfield,ptitle,latinterv,getproj,wrfinterv,dumpbdy,\
42	fmtvar,definecolorvec,defcolorb,getprefix,putpoints,calculate_bounds,errormess,definesubplot,\
43	zoomset,getcoorddef,getwinddef,whatkindfile,reducefield,bounds,getstralt,getfield,smooth,nolow,\
44	getname,localtime,polarinterv
45	from mymath import deg,max,min,mean
46	from matplotlib.pyplot import contour,contourf, subplot, figure, rcParams, savefig, colorbar, pcolor, show
47	from matplotlib.cm import get_cmap
48	import numpy as np
49	from numpy.core.defchararray import find
50
51	#if save == 'eps': rcParams['backend'] = 'PS'
52
53	######################
54	### Load NETCDF object
55	nc = Dataset(namefile)
56
57	##################################
58	### Initial checks and definitions
59	typefile = whatkindfile(nc) ## TYPEFILE
60	if var not in nc.variables: var = False ## VAR
61	if winds: ## WINDS
62	[uchar,vchar,metwind] = getwinddef(nc)
63	if uchar == 'not found': winds = False
64	if not var and not winds: errormess("please set at least winds or var",printvar=nc.variables)
65	[lon2d,lat2d] = getcoorddef(nc) ## COORDINATES, could be moved below
66	if proj == None: proj = getproj(nc) ## PROJECTION
67
68	##########################
69	### Define plot boundaries
70	### todo: possible areas in latinterv in argument (ex: "Far_South_Pole")
71	if proj in ["npstere","spstere"]: [wlon,wlat] = polarinterv(lon2d,lat2d)
72	elif proj in ["lcc","laea"]: [wlon,wlat] = wrfinterv(lon2d,lat2d)
73	else: [wlon,wlat] = simplinterv(lon2d,lat2d)
74	if zoom: [wlon,wlat] = zoomset(wlon,wlat,zoom)
75
76	#########################################
77	### Name for title and graphics save file
78	basename = getname(var=var,winds=winds,anomaly=anomaly)
79	basename = basename + getstralt(nc,nvert) ## can be moved elsewhere for a more generic routine
80
81	##################################
82	### Open a figure and set subplots
83	fig = figure()
84	sub = definesubplot( numplot, fig )
85
86	#################################
87	### Time loop for plotting device
88	found_lct = False
89	itime = first
90	nplot = 1
91	error = False
92	if itstep is None and numplot > 0: itstep = int(24./numplot)
93	elif numplot <= 0: itstep = 1
94	while error is False:
95
96	### Which local time ?
97	ltst = localtime ( interv[0]+itimeinterv[1], 0.5(wlon[0]+wlon[1]) )
98
99	### General plot settings
100	#print itime, int(ltst), numplot, nplot
101	if numplot >= 1:
102	if nplot > numplot: break
103	if numplot > 1:
104	if typefile not in ['geo']: subplot(sub+nplot-1)
105	found_lct = True
106	### If only one local time is requested (numplot < 0)
107	elif numplot <= 0:
108	if int(ltst) + numplot != 0:
109	itime += 1
110	if found_lct is True: break ## because it means LT was found at previous iteration
111	else: continue ## continue to iterate to find the correct LT
112	else:
113	found_lct = True
114
115	### Map projection
116	m = define_proj(proj,wlon,wlat,back=back)
117	x, y = m(lon2d, lat2d)
118
119	#### Contour plot
120	if var2:
121	what_I_contour, error = reducefield( getfield(nc,var2), d4=itime, d3=nvert )
122	if not error:
123	if typefile in ['mesoapi','meso']: what_I_contour = dumpbdy(what_I_contour,6)
124	zevmin, zevmax = calculate_bounds(what_I_contour)
125	zelevels = np.linspace(zevmin,zevmax,num=20)
126	if var2 == 'HGT': zelevels = np.arange(-10000.,30000.,2000.)
127	contour( x, y, what_I_contour, zelevels, colors='k', linewidths = 0.33 ) #colors='w' )# , alpha=0.5)
128
129	#### Shaded plot
130	if var:
131	what_I_plot, error = reducefield( getfield(nc,var), d4=itime, d3=nvert )
132	if not error:
133	fvar = var
134	###
135	if anomaly:
136	what_I_plot = 100. * ((what_I_plot / smooth(what_I_plot,12)) - 1.)
137	fvar = 'anomaly'
138	###
139	if typefile in ['mesoapi','meso']: what_I_plot = dumpbdy(what_I_plot,6)
140	zevmin, zevmax = calculate_bounds(what_I_plot,vmin=vmin,vmax=vmax)
141	if colorb in ["def","nobar"]: palette = get_cmap(name=defcolorb(fvar))
142	else: palette = get_cmap(name=colorb)
143	if not tile:
144	if not hole: what_I_plot = bounds(what_I_plot,zevmin,zevmax)
145	zelevels = np.linspace(zevmin(1. + 1.e-7),zevmax(1. - 1.e-7)) #,num=20)
146	contourf( x, y, what_I_plot, zelevels, cmap = palette )
147	else:
148	if hole: what_I_plot = nolow(what_I_plot)
149	pcolor( x, y, what_I_plot, cmap = palette, \
150	vmin=zevmin, vmax=zevmax )
151	if colorb != 'nobar' and var != 'HGT':
152	colorbar(fraction=0.05,pad=0.03,format=fmtvar(fvar),\
153	ticks=np.linspace(zevmin,zevmax,ndiv+1),\
154	extend='neither',spacing='proportional')
155	# both min max neither
156
157	### Vector plot
158	if winds:
159	vecx, error = reducefield( getfield(nc,uchar), d4=itime, d3=nvert )
160	vecy, error = reducefield( getfield(nc,vchar), d4=itime, d3=nvert )
161	if not error:
162	if typefile in ['mesoapi','meso']:
163	[vecx,vecy] = [dumpbdy(vecx,6,stag=uchar), dumpbdy(vecy,6,stag=vchar)]
164	key = True
165	elif typefile in ['gcm']:
166	key = False
167	if metwind: [vecx,vecy] = m.rotate_vector(vecx, vecy, lon2d, lat2d)
168	if var == False: colorvec = definecolorvec(back)
169	else: colorvec = definecolorvec(colorb)
170	vectorfield(vecx, vecy,\
171	x, y, stride=stride, csmooth=2,\
172	#scale=15., factor=300., color=colorvec, key=key)
173	scale=20., factor=250., color=colorvec, key=key)
174	#200. ## or csmooth=stride
175
176	### Next subplot
177	plottitle = basename
178	if typefile in ['mesoapi','meso']:
179	if addchar: plottitle = plottitle + addchar + "_LT"+str(ltst)
180	else: plottitle = plottitle + "_LT"+str(ltst)
181	ptitle( plottitle )
182	itime += itstep
183	nplot += 1
184
185	##########################################################################
186	### Save the figure in a file in the data folder or an user-defined folder
187	if typefile in ['meso','mesoapi']: prefix = getprefix(nc)
188	elif typefile in ['gcm','gcmex']: prefix = 'LMD_GCM_'
189	else: prefix = ''
190	###
191	zeplot = prefix + basename
192	if addchar: zeplot = zeplot + addchar
193	if numplot <= 0: zeplot = zeplot + "_LT"+str(abs(numplot))
194	###
195	if not target: zeplot = namefile[0:find(namefile,'wrfout')] + zeplot
196	else: zeplot = target + "/" + zeplot
197	###
198	if found_lct:
199	pad_inches_value = 0.35
200	if save == 'png':
201	makeplotres(zeplot,res=100.,pad_inches_value=pad_inches_value) #,erase=True) ## a miniature
202	makeplotres(zeplot,res=200.,pad_inches_value=pad_inches_value,disp=False)
203	elif save in ['eps','svg','pdf']:
204	makeplotres(zeplot, pad_inches_value=pad_inches_value,disp=False,ext=save)
205	elif save == 'gui':
206	show()
207	else:
208	print "save mode not supported. using gui instead."
209	show()
210	else: print "Local time not found"
211
212	###############
213	### Now the end
214	return zeplot
215
216	##############################
217	### A specific stuff for below
218	def adjust_length (tab, zelen):
219	from numpy import ones
220	if tab is None:
221	outtab = ones(zelen) * -999999
222	else:
223	if zelen != len(tab):
224	print "not enough or too much values... setting same values all variables"
225	outtab = ones(zelen) * tab[0]
226	else:
227	outtab = tab
228	return outtab
229
230	###########################################################################################
231	###########################################################################################
232	### What is below relate to running the file as a command line executable (very convenient)
233	if __name__ == "__main__":
234	import sys
235	from optparse import OptionParser ### to be replaced by argparse
236	from api_wrapper import api_onelevel
237	from netCDF4 import Dataset
238	from myplot import getlschar
239	from os import system
240
241	#############################
242	### Get options and variables
243	parser = OptionParser()
244	parser.add_option('-f', '--file', action='append',dest='namefile', type="string", default=None, help='[NEEDED] name of WRF file (append)')
245	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)')
246	parser.add_option('-p', '--proj', action='store',dest='proj', type="string", default=None, help='projection')
247	parser.add_option('-b', '--back', action='store',dest='back', type="string", default=None, help='background image (def: None)')
248	parser.add_option('-t', '--target', action='store',dest='target', type="string", default=None, help='destination folder')
249	parser.add_option('-s', '--stride', action='store',dest='stride', type="int", default=3, help='stride vectors (def=3)')
250	parser.add_option('-v', '--var', action='append',dest='var', type="string", default=None, help='variable color-shaded (append)')
251	parser.add_option('-n', '--num', action='store',dest='numplot', type="int", default=2, help='plot number (def=2)(<0: plot LT -numplot)')
252	parser.add_option('-i', '--interp', action='store',dest='interp', type="int", default=None, help='interpolation (2: p, 3: z-amr, 4:z-als)')
253	parser.add_option('-c', '--color', action='store',dest='colorb', type="string", default="def", help='change colormap (nobar: no colorbar)')
254	parser.add_option('-x', '--no-vect',action='store_false',dest='winds', default=True, help='no wind vectors')
255	parser.add_option('-m', '--min', action='append',dest='vmin', type="float", default=None, help='bounding minimum value (append)')
256	parser.add_option('-M', '--max', action='append',dest='vmax', type="float", default=None, help='bounding maximum value (append)')
257	parser.add_option('-T', '--tiled', action='store_true',dest='tile', default=False, help='draw a tiled plot (no blank zone)')
258	parser.add_option('-z', '--zoom', action='store',dest='zoom', type="float", default=None, help='zoom factor in %')
259	parser.add_option('-N', '--no-api', action='store_true',dest='nocall', default=False, help='do not recreate api file')
260	parser.add_option('-d', '--display',action='store_false',dest='display', default=True, help='do not pop up created images')
261	parser.add_option('-e', '--itstep', action='store',dest='itstep', type="int", default=None, help='stride time (def=4)')
262	parser.add_option('-H', '--hole', action='store_true',dest='hole', default=False, help='holes above max and below min')
263	parser.add_option('-S', '--save', action='store',dest='save', type="string", default="gui", help='save mode (png,eps,svg,pdf or gui)(def=gui)')
264	parser.add_option('-a', '--anomaly',action='store_true',dest='anomaly', default=False, help='compute and plot relative anomaly in %')
265	parser.add_option('-w', '--with', action='store',dest='var2', type="string", default=None, help='variable contoured')
266	parser.add_option('--div', action='store',dest='ndiv', type="int", default=10, help='number of divisions in colorbar (def: 10)')
267	parser.add_option('-F', '--first', action='store',dest='first', type="int", default=1, help='first subscript to plot (def: 1)')
268	#parser.add_option('-V', action='store', dest='comb', type="float", default=None, help='a defined combination of variables')
269	(opt,args) = parser.parse_args()
270	if opt.namefile is None:
271	print "I want to eat one file at least ! Use winds.py -f name_of_my_file. Or type winds.py -h"
272	exit()
273	if opt.var is None and opt.anomaly is True:
274	print "Cannot ask to compute anomaly if no variable is set"
275	exit()
276	print "Options:", opt
277
278	listvar = ''
279	if opt.var is None:
280	zerange = [-999999]
281	else:
282	zelen = len(opt.var)
283	zerange = range(zelen)
284	#if zelen == 1: listvar = opt.var[0] + ','
285	#else :
286	for jjj in zerange: listvar += opt.var[jjj] + ','
287	listvar = listvar[0:len(listvar)-1]
288	vmintab = adjust_length (opt.vmin, zelen)
289	vmaxtab = adjust_length (opt.vmax, zelen)
290
291	for i in range(len(opt.namefile)):
292
293	zefile = opt.namefile[i]
294	print zefile
295	zelevel = opt.nvert
296	stralt = None
297	[lschar,zehour,zehourin] = getlschar ( zefile ) ## getlschar from wrfout (or simply return "" if another file)
298
299	#####################################################
300	### Call Fortran routines for vertical interpolations
301	if opt.interp is not None:
302	if opt.nvert is 0 and opt.interp is 4: zelevel = 0.010
303	### winds or no winds
304	if opt.winds : zefields = 'uvmet'
305	else : zefields = ''
306	### var or no var
307	#if opt.var is None : pass
308	if zefields == '' : zefields = listvar
309	else : zefields = zefields + "," + listvar
310	if opt.var2 is not None : zefields = zefields + "," + opt.var2
311	print zefields
312	zefile = api_onelevel ( path_to_input = '', \
313	input_name = zefile, \
314	fields = zefields, \
315	interp_method = opt.interp, \
316	onelevel = zelevel, \
317	nocall = opt.nocall )
318	print zefile
319	zelevel = 0 ## so that zelevel could play again the role of nvert
320
321	if opt.var is None: zerange = [-999999]
322	else: zerange = range(zelen)
323	for jjj in zerange:
324	if jjj == -999999:
325	argvar = None
326	argvmin = None
327	argvmax = None
328	else:
329	argvar = opt.var[jjj]
330	if vmintab[jjj] != -999999: argvmin = vmintab[jjj]
331	else: argvmin = None
332	if vmaxtab[jjj] != -999999: argvmax = vmaxtab[jjj]
333	else: argvmax = None
334	#############
335	### Main call
336	name = winds (zefile,int(zelevel),\
337	proj=opt.proj,back=opt.back,target=opt.target,stride=opt.stride,var=argvar,\
338	numplot=opt.numplot,colorb=opt.colorb,winds=opt.winds,\
339	addchar=lschar,interv=[zehour,zehourin],vmin=argvmin,vmax=argvmax,\
340	tile=opt.tile,zoom=opt.zoom,display=opt.display,\
341	itstep=opt.itstep,hole=opt.hole,save=opt.save,\
342	anomaly=opt.anomaly,var2=opt.var2,ndiv=opt.ndiv,first=opt.first)
343	print 'Done: '+name
344	system("rm -f to_be_erased")
345
346	#########################################################
347	### Generate a .sh file with the used command saved in it
348	command = ""
349	for arg in sys.argv: command = command + arg + ' '
350	f = open(name+'.sh', 'w')
351	f.write(command)

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