| 1 | ############################################### |
|---|
| 2 | ## PLANETOPLOT ## |
|---|
| 3 | ## --> PPPLOT ## |
|---|
| 4 | ############################################### |
|---|
| 5 | ## Author: Aymeric Spiga. 02-03/2013 ## |
|---|
| 6 | ############################################### |
|---|
| 7 | # python built-in librairies |
|---|
| 8 | import time as timelib |
|---|
| 9 | # added librairies |
|---|
| 10 | import numpy as np |
|---|
| 11 | import matplotlib.pyplot as mpl |
|---|
| 12 | from matplotlib.cm import get_cmap |
|---|
| 13 | from mpl_toolkits.basemap import Basemap |
|---|
| 14 | from matplotlib.ticker import FormatStrFormatter,MaxNLocator |
|---|
| 15 | # personal librairies |
|---|
| 16 | import ppcompute |
|---|
| 17 | ############################################### |
|---|
| 18 | |
|---|
| 19 | ################################# |
|---|
| 20 | # global variables and settings # |
|---|
| 21 | ################################# |
|---|
| 22 | |
|---|
| 23 | # matplotlib settings |
|---|
| 24 | # http://matplotlib.org/users/customizing.html |
|---|
| 25 | # ------------------------------- |
|---|
| 26 | mpl.rcParams['font.family'] = "serif" |
|---|
| 27 | mpl.rcParams['axes.color_cycle'] = "b,r,g,k" |
|---|
| 28 | mpl.rcParams['contour.negative_linestyle'] = "dashed" # ou "solid" |
|---|
| 29 | mpl.rcParams['verbose.level'] = "silent" |
|---|
| 30 | mpl.rcParams['lines.linewidth'] = 1.5 |
|---|
| 31 | mpl.rcParams['lines.markersize'] = 10 |
|---|
| 32 | mpl.rcParams['xtick.major.pad'] = 10 |
|---|
| 33 | mpl.rcParams['ytick.major.pad'] = 10 |
|---|
| 34 | |
|---|
| 35 | # global variables |
|---|
| 36 | # ------------------------------- |
|---|
| 37 | # - where settings files are located |
|---|
| 38 | # (None means planetoplot_v2 in PYTHONPATH) |
|---|
| 39 | whereset = None |
|---|
| 40 | # - some good default settings. |
|---|
| 41 | # (bounds) |
|---|
| 42 | how_many_sigma = 3.0 |
|---|
| 43 | # (contours) |
|---|
| 44 | ccol = 'black' |
|---|
| 45 | cline = 0.55 |
|---|
| 46 | # (vectors) |
|---|
| 47 | widthvec = 0.002 |
|---|
| 48 | reducevec = 30. |
|---|
| 49 | # (colorbar) |
|---|
| 50 | zeorientation="vertical" |
|---|
| 51 | zefrac = 0.05 |
|---|
| 52 | # (save figures) |
|---|
| 53 | pad_inches_value=0.25 |
|---|
| 54 | # (negative mode) |
|---|
| 55 | def_negative = False |
|---|
| 56 | ############################################### |
|---|
| 57 | |
|---|
| 58 | ### settings for 'negative-like' mode |
|---|
| 59 | if def_negative: |
|---|
| 60 | mpl.rc('figure', facecolor='k', edgecolor='k') |
|---|
| 61 | mpl.rcParams['text.color'] = 'w' |
|---|
| 62 | mpl.rc('axes',labelcolor='w',facecolor='k',edgecolor='w') |
|---|
| 63 | mpl.rcParams['xtick.color'] = 'w' |
|---|
| 64 | mpl.rcParams['ytick.color'] = 'w' |
|---|
| 65 | mpl.rcParams['grid.color'] = 'w' |
|---|
| 66 | mpl.rc('savefig',facecolor='k',edgecolor='k') |
|---|
| 67 | |
|---|
| 68 | ########################## |
|---|
| 69 | # executed when imported # |
|---|
| 70 | ########################## |
|---|
| 71 | ########################################### |
|---|
| 72 | # we load user-defined automatic settings # |
|---|
| 73 | ########################################### |
|---|
| 74 | # initialize the warning variable about file not present... |
|---|
| 75 | files_not_present = "" |
|---|
| 76 | # ... and the whereset variable |
|---|
| 77 | whereset = ppcompute.findset(whereset) |
|---|
| 78 | |
|---|
| 79 | # - variable settings |
|---|
| 80 | # ------------------------------- |
|---|
| 81 | zefile = "set_var.txt" |
|---|
| 82 | vf = {} ; vc = {} ; vl = {} ; vu = {} |
|---|
| 83 | try: |
|---|
| 84 | f = open(whereset+zefile, 'r') |
|---|
| 85 | for line in f: |
|---|
| 86 | if "#" in line: pass |
|---|
| 87 | else: |
|---|
| 88 | var, format, colorb, label, units = line.strip().split(';') |
|---|
| 89 | ind = var.strip() |
|---|
| 90 | vf[ind] = format.strip() |
|---|
| 91 | vc[ind] = colorb.strip() |
|---|
| 92 | vl[ind] = label.strip() |
|---|
| 93 | vu[ind] = units.strip() |
|---|
| 94 | f.close() |
|---|
| 95 | except IOError: |
|---|
| 96 | files_not_present = files_not_present + zefile + " " |
|---|
| 97 | |
|---|
| 98 | ## - file settings |
|---|
| 99 | ## ------------------------------- |
|---|
| 100 | #zefile = "set_file.txt" |
|---|
| 101 | #prefix_t = {} ; suffix_t = {} ; name_t = {} ; proj_t = {} ; vecx_t = {} ; vecy_t = {} |
|---|
| 102 | #try: |
|---|
| 103 | # f = open(whereset+zefile, 'r') |
|---|
| 104 | # for line in f: |
|---|
| 105 | # if "#" in line: pass |
|---|
| 106 | # else: |
|---|
| 107 | # prefix, suffix, name, proj, vecx, vecy = line.strip().split(';') |
|---|
| 108 | # ind = name.strip() |
|---|
| 109 | # prefix_t[ind] = prefix.strip() |
|---|
| 110 | # suffix_t[ind] = suffix.strip() |
|---|
| 111 | # #name_t[ind] = name.strip() |
|---|
| 112 | # proj_t[ind] = proj.strip() |
|---|
| 113 | # vecx_t[ind] = vecx.strip() |
|---|
| 114 | # vecy_t[ind] = vecy.strip() |
|---|
| 115 | # f.close() |
|---|
| 116 | #except IOError: |
|---|
| 117 | # files_not_present = files_not_present + zefile + " " |
|---|
| 118 | |
|---|
| 119 | # - multiplot settings |
|---|
| 120 | # ------------------------------- |
|---|
| 121 | zefile = "set_multiplot.txt" |
|---|
| 122 | subv_t = {} ; subh_t = {} ; wspace_t = {} ; hspace_t = {} ; font_t = {} |
|---|
| 123 | try: |
|---|
| 124 | f = open(whereset+zefile, 'r') |
|---|
| 125 | for line in f: |
|---|
| 126 | if "#" in line: pass |
|---|
| 127 | else: |
|---|
| 128 | num, subv, subh, wspace, hspace, font = line.strip().split(';') |
|---|
| 129 | ind = int(num.strip()) |
|---|
| 130 | subv_t[ind] = int(subv.strip()) |
|---|
| 131 | subh_t[ind] = int(subh.strip()) |
|---|
| 132 | wspace_t[ind] = float(wspace.strip()) |
|---|
| 133 | hspace_t[ind] = float(hspace.strip()) |
|---|
| 134 | font_t[ind] = float(font.strip()) |
|---|
| 135 | f.close() |
|---|
| 136 | except IOError: |
|---|
| 137 | files_not_present = files_not_present + zefile + " " |
|---|
| 138 | |
|---|
| 139 | # - background settings |
|---|
| 140 | # ------------------------------- |
|---|
| 141 | zefile = "set_back.txt" |
|---|
| 142 | back = {} |
|---|
| 143 | try: |
|---|
| 144 | f = open(whereset+zefile, 'r') |
|---|
| 145 | for line in f: |
|---|
| 146 | if "#" in line: pass |
|---|
| 147 | else: |
|---|
| 148 | name, link = line.strip().split(';') |
|---|
| 149 | ind = name.strip() |
|---|
| 150 | back[ind] = link.strip() |
|---|
| 151 | f.close() |
|---|
| 152 | except IOError: |
|---|
| 153 | files_not_present = files_not_present + zefile + " " |
|---|
| 154 | |
|---|
| 155 | # - area settings |
|---|
| 156 | # ------------------------------- |
|---|
| 157 | zefile = "set_area.txt" |
|---|
| 158 | area = {} |
|---|
| 159 | try: |
|---|
| 160 | f = open(whereset+zefile, 'r') |
|---|
| 161 | for line in f: |
|---|
| 162 | if "#" in line: pass |
|---|
| 163 | else: |
|---|
| 164 | name, wlat1, wlat2, wlon1, wlon2 = line.strip().split(';') |
|---|
| 165 | area[name.strip()] = [[float(wlon1.strip()),float(wlon2.strip())],\ |
|---|
| 166 | [float(wlat1.strip()),float(wlat2.strip())]] |
|---|
| 167 | f.close() |
|---|
| 168 | except IOError: |
|---|
| 169 | files_not_present = files_not_present + zefile + " " |
|---|
| 170 | # A note to the user about missing files |
|---|
| 171 | if files_not_present != "": |
|---|
| 172 | print "warning: files "+files_not_present+" not in "+whereset+" ; those presets will be missing" |
|---|
| 173 | |
|---|
| 174 | # TBD: should change vector color with colormaps |
|---|
| 175 | #"gist_heat": "white",\ |
|---|
| 176 | #"hot": "white",\ |
|---|
| 177 | #"gray": "red",\ |
|---|
| 178 | |
|---|
| 179 | #################### |
|---|
| 180 | # useful functions # |
|---|
| 181 | #################### |
|---|
| 182 | |
|---|
| 183 | # continuity with matplotlib |
|---|
| 184 | def close(): |
|---|
| 185 | mpl.close() |
|---|
| 186 | |
|---|
| 187 | # a function for predefined figure sizes |
|---|
| 188 | def figuref(x=16,y=9): |
|---|
| 189 | fig = mpl.figure(figsize=(x,y)) |
|---|
| 190 | return fig |
|---|
| 191 | |
|---|
| 192 | # a function to change color lines according to a color map (idea by A. Pottier) |
|---|
| 193 | # ... two optional arguments: color maps + a number telling how much intervals are needed |
|---|
| 194 | def rainbow(cb="jet",num=8): |
|---|
| 195 | ax = mpl.gca() |
|---|
| 196 | pal = mpl.cm.get_cmap(name=cb) |
|---|
| 197 | ax._get_lines.set_color_cycle([pal(i) for i in np.linspace(0,0.9,num)]) |
|---|
| 198 | |
|---|
| 199 | # a function to define subplot |
|---|
| 200 | # ... user can change settings in set_multiplot.txt read above |
|---|
| 201 | # ------------------------------- |
|---|
| 202 | def definesubplot(numplot, fig): |
|---|
| 203 | try: |
|---|
| 204 | mpl.rcParams['font.size'] = font_t[numplot] |
|---|
| 205 | except: |
|---|
| 206 | mpl.rcParams['font.size'] = 18 |
|---|
| 207 | try: |
|---|
| 208 | fig.subplots_adjust(wspace = wspace_t[numplot], hspace = hspace_t[numplot]) |
|---|
| 209 | subv, subh = subv_t[numplot],subh_t[numplot] |
|---|
| 210 | except: |
|---|
| 211 | print "!! WARNING !! (ignore if superpose mode) no preset found from set_multiplot.txt, or this setting file was not found." |
|---|
| 212 | subv = 1 ; subh = numplot |
|---|
| 213 | return subv,subh |
|---|
| 214 | |
|---|
| 215 | # a function to calculate automatically bounds (or simply prescribe those) |
|---|
| 216 | # ------------------------------- |
|---|
| 217 | def calculate_bounds(field,vmin=None,vmax=None): |
|---|
| 218 | # prescribed cases first |
|---|
| 219 | zevmin = vmin |
|---|
| 220 | zevmax = vmax |
|---|
| 221 | # computed cases |
|---|
| 222 | if zevmin is None or zevmax is None: |
|---|
| 223 | # select values |
|---|
| 224 | ind = np.where(field < 9e+35) |
|---|
| 225 | fieldcalc = field[ ind ] # field must be a numpy array |
|---|
| 226 | # calculate stdev and mean |
|---|
| 227 | dev = np.std(fieldcalc)*how_many_sigma |
|---|
| 228 | damean = ppcompute.mean(fieldcalc) |
|---|
| 229 | # fill min/max if needed |
|---|
| 230 | if vmin is None: zevmin = damean - dev |
|---|
| 231 | if vmax is None: zevmax = damean + dev |
|---|
| 232 | # special case: negative values with stddev while field is positive |
|---|
| 233 | if zevmin < 0. and ppcompute.min(fieldcalc) >= 0.: zevmin = 0. |
|---|
| 234 | # check that bounds are not too tight given the field |
|---|
| 235 | amin = ppcompute.min(field) |
|---|
| 236 | amax = ppcompute.max(field) |
|---|
| 237 | if np.abs(amin) < 1.e-15: |
|---|
| 238 | cmin = 0. |
|---|
| 239 | else: |
|---|
| 240 | cmin = 100.*np.abs((amin - zevmin)/amin) |
|---|
| 241 | cmax = 100.*np.abs((amax - zevmax)/amax) |
|---|
| 242 | if cmin > 150. or cmax > 150.: |
|---|
| 243 | print "!! WARNING !! Bounds are a bit too tight. Might need to reconsider those." |
|---|
| 244 | print "!! WARNING !! --> actual",amin,amax,"adopted",zevmin,zevmax |
|---|
| 245 | return zevmin, zevmax |
|---|
| 246 | #### treat vmin = vmax for continuity |
|---|
| 247 | #if vmin == vmax: zevmin = damean - dev ; zevmax = damean + dev |
|---|
| 248 | |
|---|
| 249 | # a function to solve the problem with blank bounds ! |
|---|
| 250 | # ------------------------------- |
|---|
| 251 | def bounds(what_I_plot,zevmin,zevmax,miss=9e+35): |
|---|
| 252 | small_enough = 1.e-7 |
|---|
| 253 | if zevmin < 0: what_I_plot[ what_I_plot < zevmin*(1.-small_enough) ] = zevmin*(1.-small_enough) |
|---|
| 254 | else: what_I_plot[ what_I_plot < zevmin*(1.+small_enough) ] = zevmin*(1.+small_enough) |
|---|
| 255 | what_I_plot[ what_I_plot > miss ] = -miss |
|---|
| 256 | what_I_plot[ what_I_plot > zevmax ] = zevmax*(1.-small_enough) |
|---|
| 257 | return what_I_plot |
|---|
| 258 | |
|---|
| 259 | # a function to change labels with modulo |
|---|
| 260 | # --------------------------------------- |
|---|
| 261 | def labelmodulo(ax,mod): |
|---|
| 262 | mpl.draw() |
|---|
| 263 | strtab = [] |
|---|
| 264 | for tick in ax.get_xaxis().get_ticklabels(): |
|---|
| 265 | onetick = tick.get_text() |
|---|
| 266 | if len(onetick) > 0: |
|---|
| 267 | num = float(onetick) |
|---|
| 268 | strtab.append(num % mod) |
|---|
| 269 | ax.get_xaxis().set_ticklabels(strtab) |
|---|
| 270 | return ax |
|---|
| 271 | |
|---|
| 272 | # a function to output an ascii file |
|---|
| 273 | # ---------------------------------- |
|---|
| 274 | def writeascii (field=None,absc=None,name=None): |
|---|
| 275 | field = np.array(field) |
|---|
| 276 | absc = np.array(absc) |
|---|
| 277 | if name is None: |
|---|
| 278 | name = "prof" |
|---|
| 279 | for ttt in timelib.gmtime(): |
|---|
| 280 | name = name + "_" + str(ttt) |
|---|
| 281 | if field is None or absc is None: |
|---|
| 282 | print "!! WARNING !! Not printing the file, incorrect field or absc." |
|---|
| 283 | else: |
|---|
| 284 | if field.ndim == 1: |
|---|
| 285 | myfile = open(name, 'w') |
|---|
| 286 | for ix in range(len(absc)): |
|---|
| 287 | myfile.write("%15.5e%15.5e\n" % ( absc[ix], field[ix] )) |
|---|
| 288 | myfile.close() |
|---|
| 289 | else: |
|---|
| 290 | print "!! WARNING !! Not printing the file, 2D fields not supported yet." |
|---|
| 291 | return |
|---|
| 292 | |
|---|
| 293 | # a generic function to show (GUI) or save a plot (PNG,EPS,PDF,...) |
|---|
| 294 | # ------------------------------- |
|---|
| 295 | def save(mode="gui",filename="plot",folder="./",includedate=True,res=150,custom=False): |
|---|
| 296 | if mode != "nothing": |
|---|
| 297 | # a few settings |
|---|
| 298 | possiblesave = ['eps','ps','svg','png','jpg','pdf'] |
|---|
| 299 | # now the main instructions |
|---|
| 300 | if mode == "gui": |
|---|
| 301 | mpl.show() |
|---|
| 302 | elif mode in possiblesave: |
|---|
| 303 | ## name of plot |
|---|
| 304 | name = folder+'/'+filename |
|---|
| 305 | if includedate: |
|---|
| 306 | for ttt in timelib.gmtime(): |
|---|
| 307 | name = name + "_" + str(ttt) |
|---|
| 308 | name = name +"."+mode |
|---|
| 309 | ## save file |
|---|
| 310 | print "**** Saving file in "+mode+" format... Please wait." |
|---|
| 311 | if not custom: |
|---|
| 312 | # ... regular plots |
|---|
| 313 | mpl.savefig(name,dpi=res,pad_inches=pad_inches_value,bbox_inches='tight') |
|---|
| 314 | else: |
|---|
| 315 | # ... mapping mode, adapted space for labels etc... |
|---|
| 316 | mpl.savefig(name,dpi=res) |
|---|
| 317 | else: |
|---|
| 318 | print "!! ERROR !! File format not supported. Supported: ",possiblesave |
|---|
| 319 | |
|---|
| 320 | ################################## |
|---|
| 321 | # a generic class to make a plot # |
|---|
| 322 | ################################## |
|---|
| 323 | class plot(): |
|---|
| 324 | |
|---|
| 325 | # print out a help string when help is invoked on the object |
|---|
| 326 | # ------------------------------- |
|---|
| 327 | def __repr__(self): |
|---|
| 328 | whatprint = 'plot object. \"help(plot)\" for more information\n' |
|---|
| 329 | return whatprint |
|---|
| 330 | |
|---|
| 331 | # default settings |
|---|
| 332 | # -- user can define settings by two methods. |
|---|
| 333 | # -- 1. yeah = plot2d(title="foo") |
|---|
| 334 | # -- 2. yeah = pp() ; yeah.title = "foo" |
|---|
| 335 | # ------------------------------- |
|---|
| 336 | def __init__(self,\ |
|---|
| 337 | var=None,\ |
|---|
| 338 | field=None,\ |
|---|
| 339 | absc=None,\ |
|---|
| 340 | xlabel="",\ |
|---|
| 341 | ylabel="",\ |
|---|
| 342 | div=20,\ |
|---|
| 343 | logx=False,\ |
|---|
| 344 | logy=False,\ |
|---|
| 345 | swap=False,\ |
|---|
| 346 | swaplab=True,\ |
|---|
| 347 | invert=False,\ |
|---|
| 348 | xcoeff=1.,\ |
|---|
| 349 | ycoeff=1.,\ |
|---|
| 350 | fmt=None,\ |
|---|
| 351 | colorb="jet",\ |
|---|
| 352 | units="",\ |
|---|
| 353 | modx=None,\ |
|---|
| 354 | xmin=None,\ |
|---|
| 355 | ymin=None,\ |
|---|
| 356 | xmax=None,\ |
|---|
| 357 | ymax=None,\ |
|---|
| 358 | nxticks=10,\ |
|---|
| 359 | nyticks=10,\ |
|---|
| 360 | title=""): |
|---|
| 361 | ## what could be defined by the user |
|---|
| 362 | self.var = var |
|---|
| 363 | self.field = field |
|---|
| 364 | self.absc = absc |
|---|
| 365 | self.xlabel = xlabel |
|---|
| 366 | self.ylabel = ylabel |
|---|
| 367 | self.title = title |
|---|
| 368 | self.div = div |
|---|
| 369 | self.logx = logx |
|---|
| 370 | self.logy = logy |
|---|
| 371 | self.swap = swap |
|---|
| 372 | self.swaplab = swaplab # NB: swaplab only used if swap=True |
|---|
| 373 | self.invert = invert |
|---|
| 374 | self.xcoeff = xcoeff |
|---|
| 375 | self.ycoeff = ycoeff |
|---|
| 376 | self.fmt = fmt |
|---|
| 377 | self.units = units |
|---|
| 378 | self.colorb = colorb |
|---|
| 379 | self.modx = modx |
|---|
| 380 | self.xmin = xmin |
|---|
| 381 | self.ymin = ymin |
|---|
| 382 | self.xmax = xmax |
|---|
| 383 | self.ymax = ymax |
|---|
| 384 | self.nxticks = nxticks |
|---|
| 385 | self.nyticks = nyticks |
|---|
| 386 | ## other useful arguments |
|---|
| 387 | ## ... not used here in ppplot but need to be attached to plot object |
|---|
| 388 | self.axisbg = "white" |
|---|
| 389 | self.superpose = False |
|---|
| 390 | |
|---|
| 391 | # check |
|---|
| 392 | # ------------------------------- |
|---|
| 393 | def check(self): |
|---|
| 394 | if self.field is None: print "!! ERROR !! Please define a field to be plotted" ; exit() |
|---|
| 395 | else: self.field = np.array(self.field) # ensure this is a numpy array |
|---|
| 396 | |
|---|
| 397 | # define_from_var |
|---|
| 398 | # ... this uses settings in set_var.txt |
|---|
| 399 | # ------------------------------- |
|---|
| 400 | def define_from_var(self): |
|---|
| 401 | if self.var is not None: |
|---|
| 402 | if self.var.upper() in vl.keys(): |
|---|
| 403 | self.title = vl[self.var.upper()] |
|---|
| 404 | self.units = vu[self.var.upper()] |
|---|
| 405 | |
|---|
| 406 | # make |
|---|
| 407 | # this is generic to all plots |
|---|
| 408 | # ------------------------------- |
|---|
| 409 | def make(self): |
|---|
| 410 | self.check() |
|---|
| 411 | # labels, title, etc... |
|---|
| 412 | mpl.xlabel(self.xlabel) |
|---|
| 413 | mpl.ylabel(self.ylabel) |
|---|
| 414 | if self.swap: |
|---|
| 415 | if self.swaplab: |
|---|
| 416 | mpl.xlabel(self.ylabel) |
|---|
| 417 | mpl.ylabel(self.xlabel) |
|---|
| 418 | mpl.title(self.title) |
|---|
| 419 | # if masked array, set masked values to filled values (e.g. np.nan) for plotting purposes |
|---|
| 420 | if type(self.field).__name__ in 'MaskedArray': |
|---|
| 421 | self.field[self.field.mask] = self.field.fill_value |
|---|
| 422 | |
|---|
| 423 | ################################ |
|---|
| 424 | # a subclass to make a 1D plot # |
|---|
| 425 | ################################ |
|---|
| 426 | class plot1d(plot): |
|---|
| 427 | |
|---|
| 428 | # print out a help string when help is invoked on the object |
|---|
| 429 | # ------------------------------- |
|---|
| 430 | def __repr__(self): |
|---|
| 431 | whatprint = 'plot1d object. \"help(plot1d)\" for more information\n' |
|---|
| 432 | return whatprint |
|---|
| 433 | |
|---|
| 434 | # default settings |
|---|
| 435 | # -- user can define settings by two methods. |
|---|
| 436 | # -- 1. yeah = plot1d(title="foo") |
|---|
| 437 | # -- 2. yeah = pp() ; yeah.title = "foo" |
|---|
| 438 | # ------------------------------- |
|---|
| 439 | def __init__(self,\ |
|---|
| 440 | lstyle=None,\ |
|---|
| 441 | color=None,\ |
|---|
| 442 | marker='x',\ |
|---|
| 443 | label=None): |
|---|
| 444 | ## get initialization from parent class |
|---|
| 445 | plot.__init__(self) |
|---|
| 446 | ## what could be defined by the user |
|---|
| 447 | self.lstyle = lstyle |
|---|
| 448 | self.color = color |
|---|
| 449 | self.marker = marker |
|---|
| 450 | self.label = label |
|---|
| 451 | |
|---|
| 452 | # define_from_var |
|---|
| 453 | # ... this uses settings in set_var.txt |
|---|
| 454 | # ------------------------------- |
|---|
| 455 | def define_from_var(self): |
|---|
| 456 | # get what is done in the parent class |
|---|
| 457 | plot.define_from_var(self) |
|---|
| 458 | # add specific stuff |
|---|
| 459 | if self.var is not None: |
|---|
| 460 | if self.var.upper() in vl.keys(): |
|---|
| 461 | self.ylabel = vl[self.var.upper()] + " (" + vu[self.var.upper()] + ")" |
|---|
| 462 | self.title = "" |
|---|
| 463 | self.fmt = vf[self.var.upper()] |
|---|
| 464 | |
|---|
| 465 | # make |
|---|
| 466 | # ------------------------------- |
|---|
| 467 | def make(self): |
|---|
| 468 | # get what is done in the parent class |
|---|
| 469 | plot.make(self) |
|---|
| 470 | if self.fmt is None: self.fmt = '%.0f' |
|---|
| 471 | # add specific stuff |
|---|
| 472 | mpl.grid(color='grey') |
|---|
| 473 | if self.lstyle == "": self.lstyle = " " # to allow for no line at all with "" |
|---|
| 474 | # set dummy x axis if not defined |
|---|
| 475 | if self.absc is None: |
|---|
| 476 | self.absc = np.array(range(self.field.shape[0])) |
|---|
| 477 | print "!! WARNING !! dummy coordinates on x axis" |
|---|
| 478 | else: |
|---|
| 479 | self.absc = np.array(self.absc) # ensure this is a numpy array |
|---|
| 480 | # swapping if requested |
|---|
| 481 | if self.swap: x = self.field ; y = self.absc |
|---|
| 482 | else: x = self.absc ; y = self.field |
|---|
| 483 | # coefficients on axis |
|---|
| 484 | x=x*self.xcoeff ; y=y*self.ycoeff |
|---|
| 485 | # check axis |
|---|
| 486 | if x.size != y.size: |
|---|
| 487 | print "!! ERROR !! x and y sizes don't match on 1D plot.", x.size, y.size |
|---|
| 488 | exit() |
|---|
| 489 | # make the 1D plot |
|---|
| 490 | # either request linestyle or let matplotlib decide |
|---|
| 491 | if self.lstyle is not None and self.color is not None: |
|---|
| 492 | mpl.plot(x,y,self.color+self.lstyle,marker=self.marker,label=self.label) |
|---|
| 493 | elif self.color is not None: |
|---|
| 494 | mpl.plot(x,y,color=self.color,marker=self.marker,label=self.label) |
|---|
| 495 | elif self.lstyle is not None: |
|---|
| 496 | mpl.plot(x,y,linestyle=self.lstyle,marker=self.marker,label=self.label) |
|---|
| 497 | else: |
|---|
| 498 | mpl.plot(x,y,marker=self.marker,label=self.label) |
|---|
| 499 | # AXES |
|---|
| 500 | ax = mpl.gca() |
|---|
| 501 | # make log axes and/or invert ordinate |
|---|
| 502 | # ... this must be after plot so that axis bounds are well-defined |
|---|
| 503 | # ... also inverting must be after making the thing logarithmic |
|---|
| 504 | if self.logx: mpl.xscale("log") # not mpl.semilogx() because excludes log on y |
|---|
| 505 | if self.logy: mpl.yscale("log") # not mpl.semilogy() because excludes log on x |
|---|
| 506 | if self.invert: ax.set_ylim(ax.get_ylim()[::-1]) |
|---|
| 507 | if self.xmin is not None and self.xmax is not None: |
|---|
| 508 | if self.xmin > self.xmax: |
|---|
| 509 | ax.set_xlim(ax.get_xlim()[::-1]) |
|---|
| 510 | self.xmin,self.xmax = self.xmax,self.xmin |
|---|
| 511 | # add a label for line(s) |
|---|
| 512 | if self.label is not None: |
|---|
| 513 | if self.label != "": |
|---|
| 514 | mpl.legend(loc="best",fancybox=True) |
|---|
| 515 | # format labels |
|---|
| 516 | if self.swap: ax.xaxis.set_major_formatter(FormatStrFormatter(self.fmt)) |
|---|
| 517 | else: ax.yaxis.set_major_formatter(FormatStrFormatter(self.fmt)) |
|---|
| 518 | # plot limits: ensure that no curve would be outside the window |
|---|
| 519 | # x-axis |
|---|
| 520 | x1, x2 = ax.get_xbound() |
|---|
| 521 | xmin = ppcompute.min(x) |
|---|
| 522 | xmax = ppcompute.max(x) |
|---|
| 523 | if xmin < x1: x1 = xmin |
|---|
| 524 | if xmax > x2: x2 = xmax |
|---|
| 525 | if self.xmin is not None: x1 = self.xmin |
|---|
| 526 | if self.xmax is not None: x2 = self.xmax |
|---|
| 527 | ax.set_xbound(lower=x1,upper=x2) |
|---|
| 528 | # y-axis |
|---|
| 529 | y1, y2 = ax.get_ybound() |
|---|
| 530 | ymin = ppcompute.min(y) |
|---|
| 531 | ymax = ppcompute.max(y) |
|---|
| 532 | if ymin < y1: y1 = ymin |
|---|
| 533 | if ymax > y2: y2 = ymax |
|---|
| 534 | if self.ymin is not None: y1 = self.ymin |
|---|
| 535 | if self.ymax is not None: y2 = self.ymax |
|---|
| 536 | ax.set_ybound(lower=y1,upper=y2) |
|---|
| 537 | ## set with .div the number of ticks. (is it better than automatic?) |
|---|
| 538 | if not self.logx: |
|---|
| 539 | ax.xaxis.set_major_locator(MaxNLocator(self.div/2)) #TBD: with nxticks? |
|---|
| 540 | else: |
|---|
| 541 | print "!! WARNING. in logx mode, ticks are set automatically." |
|---|
| 542 | ## specific modulo labels |
|---|
| 543 | if self.modx is not None: |
|---|
| 544 | ax = labelmodulo(ax,self.modx) |
|---|
| 545 | |
|---|
| 546 | ################################ |
|---|
| 547 | # a subclass to make a 2D plot # |
|---|
| 548 | ################################ |
|---|
| 549 | class plot2d(plot): |
|---|
| 550 | |
|---|
| 551 | # print out a help string when help is invoked on the object |
|---|
| 552 | # ------------------------------- |
|---|
| 553 | def __repr__(self): |
|---|
| 554 | whatprint = 'plot2d object. \"help(plot2d)\" for more information\n' |
|---|
| 555 | return whatprint |
|---|
| 556 | |
|---|
| 557 | # default settings |
|---|
| 558 | # -- user can define settings by two methods. |
|---|
| 559 | # -- 1. yeah = plot2d(title="foo") |
|---|
| 560 | # -- 2. yeah = pp() ; yeah.title = "foo" |
|---|
| 561 | # ------------------------------- |
|---|
| 562 | def __init__(self,\ |
|---|
| 563 | ordi=None,\ |
|---|
| 564 | mapmode=False,\ |
|---|
| 565 | proj="cyl",\ |
|---|
| 566 | back=None,\ |
|---|
| 567 | trans=1.0,\ |
|---|
| 568 | addvecx=None,\ |
|---|
| 569 | addvecy=None,\ |
|---|
| 570 | addcontour=None,\ |
|---|
| 571 | blon=None,\ |
|---|
| 572 | blat=None,\ |
|---|
| 573 | area=None,\ |
|---|
| 574 | vmin=None,\ |
|---|
| 575 | vmax=None,\ |
|---|
| 576 | showcb=True,\ |
|---|
| 577 | wscale=None,\ |
|---|
| 578 | stridevecx=1,\ |
|---|
| 579 | stridevecy=1,\ |
|---|
| 580 | colorvec="black"): |
|---|
| 581 | ## get initialization from parent class |
|---|
| 582 | plot.__init__(self) |
|---|
| 583 | ## what could be defined by the user |
|---|
| 584 | self.ordi = ordi |
|---|
| 585 | self.mapmode = mapmode |
|---|
| 586 | self.proj = proj |
|---|
| 587 | self.back = back |
|---|
| 588 | self.trans = trans |
|---|
| 589 | self.addvecx = addvecx |
|---|
| 590 | self.addvecy = addvecy |
|---|
| 591 | self.colorvec = colorvec |
|---|
| 592 | self.addcontour = addcontour |
|---|
| 593 | self.blon = blon ; self.blat = blat |
|---|
| 594 | self.area = area |
|---|
| 595 | self.vmin = vmin ; self.vmax = vmax |
|---|
| 596 | self.showcb = showcb |
|---|
| 597 | self.wscale = wscale |
|---|
| 598 | self.stridevecx = stridevecx |
|---|
| 599 | self.stridevecy = stridevecy |
|---|
| 600 | |
|---|
| 601 | # define_from_var |
|---|
| 602 | # ... this uses settings in set_var.txt |
|---|
| 603 | # ------------------------------- |
|---|
| 604 | def define_from_var(self): |
|---|
| 605 | # get what is done in the parent class |
|---|
| 606 | plot.define_from_var(self) |
|---|
| 607 | # add specific stuff |
|---|
| 608 | if self.var is not None: |
|---|
| 609 | if self.var.upper() in vl.keys(): |
|---|
| 610 | self.colorb = vc[self.var.upper()] |
|---|
| 611 | self.fmt = vf[self.var.upper()] |
|---|
| 612 | |
|---|
| 613 | # make |
|---|
| 614 | # ------------------------------- |
|---|
| 615 | def make(self): |
|---|
| 616 | # get what is done in the parent class... |
|---|
| 617 | plot.make(self) |
|---|
| 618 | if self.fmt is None: self.fmt = "%.1e" |
|---|
| 619 | # ... then add specific stuff |
|---|
| 620 | ############################################################################################ |
|---|
| 621 | ### PRE-SETTINGS |
|---|
| 622 | ############################################################################################ |
|---|
| 623 | # set dummy xy axis if not defined |
|---|
| 624 | if self.absc is None: |
|---|
| 625 | self.absc = np.array(range(self.field.shape[0])) |
|---|
| 626 | self.mapmode = False |
|---|
| 627 | print "!! WARNING !! dummy coordinates on x axis" |
|---|
| 628 | if self.ordi is None: |
|---|
| 629 | self.ordi = np.array(range(self.field.shape[1])) |
|---|
| 630 | self.mapmode = False |
|---|
| 631 | print "!! WARNING !! dummy coordinates on y axis" |
|---|
| 632 | # transposing if necessary |
|---|
| 633 | shape = self.field.shape |
|---|
| 634 | if shape[0] != shape[1]: |
|---|
| 635 | if len(self.absc) == shape[0] and len(self.ordi) == shape[1]: |
|---|
| 636 | print "!! WARNING !! Transposing axes" |
|---|
| 637 | self.field = np.transpose(self.field) |
|---|
| 638 | # bound field |
|---|
| 639 | zevmin, zevmax = calculate_bounds(self.field,vmin=self.vmin,vmax=self.vmax) |
|---|
| 640 | what_I_plot = bounds(self.field,zevmin,zevmax) |
|---|
| 641 | # define contour field levels. define color palette |
|---|
| 642 | ticks = self.div + 1 |
|---|
| 643 | zelevels = np.linspace(zevmin,zevmax,ticks) |
|---|
| 644 | palette = get_cmap(name=self.colorb) |
|---|
| 645 | # do the same thing for possible contourline entries |
|---|
| 646 | if self.addcontour is not None: |
|---|
| 647 | # if masked array, set masked values to filled values (e.g. np.nan) for plotting purposes |
|---|
| 648 | if type(self.addcontour).__name__ in 'MaskedArray': |
|---|
| 649 | self.addcontour[self.addcontour.mask] = self.addcontour.fill_value |
|---|
| 650 | zevminc, zevmaxc = calculate_bounds(self.addcontour) |
|---|
| 651 | what_I_contour = bounds(self.addcontour,zevminc,zevmaxc) |
|---|
| 652 | ticks = self.div + 1 |
|---|
| 653 | zelevelsc = np.linspace(zevminc,zevmaxc,ticks) |
|---|
| 654 | ############################################################################################ |
|---|
| 655 | ### MAIN PLOT |
|---|
| 656 | ### NB: contour lines are done before contour shades otherwise colorar error |
|---|
| 657 | ############################################################################################ |
|---|
| 658 | if not self.mapmode: |
|---|
| 659 | ## A SIMPLE 2D PLOT |
|---|
| 660 | ################### |
|---|
| 661 | # swapping if requested |
|---|
| 662 | if self.swap: x = self.ordi ; y = self.absc |
|---|
| 663 | else: x = self.absc ; y = self.ordi |
|---|
| 664 | # coefficients on axis |
|---|
| 665 | x=x*self.xcoeff ; y=y*self.ycoeff |
|---|
| 666 | # make shaded and line contours |
|---|
| 667 | if self.addcontour is not None: |
|---|
| 668 | objC = mpl.contour(x, y, what_I_contour, \ |
|---|
| 669 | zelevelsc, colors = ccol, linewidths = cline) |
|---|
| 670 | #mpl.clabel(objC, inline=1, fontsize="small",\ |
|---|
| 671 | # inline_spacing=1,fmt="%.0f") |
|---|
| 672 | mpl.contourf(x, y, \ |
|---|
| 673 | self.field, \ |
|---|
| 674 | zelevels, cmap=palette) |
|---|
| 675 | #mpl.pcolor(x,y,\ |
|---|
| 676 | # self.field, \ |
|---|
| 677 | # cmap=palette) |
|---|
| 678 | # make log axes and/or invert ordinate |
|---|
| 679 | ax = mpl.gca() |
|---|
| 680 | if self.logx: mpl.semilogx() |
|---|
| 681 | if self.logy: mpl.semilogy() |
|---|
| 682 | if self.invert: ax.set_ylim(ax.get_ylim()[::-1]) |
|---|
| 683 | if self.xmin is not None and self.xmax is not None: |
|---|
| 684 | if self.xmin > self.xmax: |
|---|
| 685 | ax.set_xlim(ax.get_xlim()[::-1]) |
|---|
| 686 | self.xmin,self.xmax = self.xmax,self.xmin |
|---|
| 687 | if self.xmin is not None: ax.set_xbound(lower=self.xmin) |
|---|
| 688 | if self.xmax is not None: ax.set_xbound(upper=self.xmax) |
|---|
| 689 | if self.ymin is not None: ax.set_ybound(lower=self.ymin) |
|---|
| 690 | if self.ymax is not None: ax.set_ybound(upper=self.ymax) |
|---|
| 691 | # set the number of ticks |
|---|
| 692 | if not self.logx: |
|---|
| 693 | ax.xaxis.set_major_locator(MaxNLocator(self.nxticks)) |
|---|
| 694 | else: |
|---|
| 695 | print "!! WARNING. in logx mode, ticks are set automatically." |
|---|
| 696 | ## specific modulo labels |
|---|
| 697 | if self.modx is not None: |
|---|
| 698 | ax = labelmodulo(ax,self.modx) |
|---|
| 699 | else: |
|---|
| 700 | ## A 2D MAP USING PROJECTIONS (basemap) |
|---|
| 701 | ####################################### |
|---|
| 702 | mpl.xlabel("") ; mpl.ylabel("") |
|---|
| 703 | # additional security in case self.proj is None here |
|---|
| 704 | # ... we set cylindrical projection (the simplest one) |
|---|
| 705 | if self.proj is None: self.proj = "cyl" |
|---|
| 706 | # get lon and lat in 2D version. |
|---|
| 707 | # (but first ensure we do have 2D coordinates) |
|---|
| 708 | if self.absc.ndim == 1: [self.absc,self.ordi] = np.meshgrid(self.absc,self.ordi) |
|---|
| 709 | elif self.absc.ndim > 2: print "!! ERROR !! lon and lat arrays must be 1D or 2D" |
|---|
| 710 | # get lat lon intervals and associated settings |
|---|
| 711 | wlon = [np.min(self.absc),np.max(self.absc)] |
|---|
| 712 | wlat = [np.min(self.ordi),np.max(self.ordi)] |
|---|
| 713 | # -- area presets are in set_area.txt |
|---|
| 714 | if self.area is not None: |
|---|
| 715 | if self.area in area.keys(): |
|---|
| 716 | wlon, wlat = area[self.area] |
|---|
| 717 | # -- settings for meridians and parallels |
|---|
| 718 | steplon = int(abs(wlon[1]-wlon[0])/6.) |
|---|
| 719 | steplat = int(abs(wlat[1]-wlat[0])/3.) |
|---|
| 720 | #mertab = np.r_[wlon[0]:wlon[1]:steplon] ; merlab = [0,0,0,1] |
|---|
| 721 | #partab = np.r_[wlat[0]:wlat[1]:steplat] ; parlab = [1,0,0,0] |
|---|
| 722 | mertab = np.r_[-180.:180.:steplon] ; merlab = [0,0,0,1] #-360:360. |
|---|
| 723 | partab = np.r_[-90.:90.:steplat] ; parlab = [1,0,0,0] |
|---|
| 724 | format = '%.1f' |
|---|
| 725 | # -- center of domain and bounding lats |
|---|
| 726 | lon_0 = 0.5*(wlon[0]+wlon[1]) |
|---|
| 727 | lat_0 = 0.5*(wlat[0]+wlat[1]) |
|---|
| 728 | # some tests, bug fixes, and good-looking settings |
|---|
| 729 | # ... cyl is good for global and regional |
|---|
| 730 | if self.proj == "cyl": |
|---|
| 731 | format = '%.0f' |
|---|
| 732 | # ... global projections |
|---|
| 733 | elif self.proj in ["ortho","moll","robin"]: |
|---|
| 734 | wlat[0] = None ; wlat[1] = None ; wlon[0] = None ; wlon[1] = None |
|---|
| 735 | steplon = 30. ; steplat = 30. |
|---|
| 736 | if self.proj in ["robin","moll"]: steplon = 60. |
|---|
| 737 | mertab = np.r_[-360.:360.:steplon] |
|---|
| 738 | partab = np.r_[-90.:90.:steplat] |
|---|
| 739 | if self.proj == "ortho": |
|---|
| 740 | merlab = [0,0,0,0] ; parlab = [0,0,0,0] |
|---|
| 741 | # in ortho projection, blon and blat can be used to set map center |
|---|
| 742 | if self.blon is not None: lon_0 = self.blon |
|---|
| 743 | if self.blat is not None: lat_0 = self.blat |
|---|
| 744 | elif self.proj == "moll": |
|---|
| 745 | merlab = [0,0,0,0] |
|---|
| 746 | format = '%.0f' |
|---|
| 747 | # ... regional projections |
|---|
| 748 | elif self.proj in ["lcc","laea","merc"]: |
|---|
| 749 | if self.proj in ["lcc","laea"] and wlat[0] == -wlat[1]: |
|---|
| 750 | print "!! ERROR !! with Lambert lat1 must be different than lat2" ; exit() |
|---|
| 751 | if wlat[0] < -80. and wlat[1] > 80.: |
|---|
| 752 | print "!! ERROR !! set an area (not global)" ; exit() |
|---|
| 753 | format = '%.0f' |
|---|
| 754 | elif self.proj in ["npstere","spstere"]: |
|---|
| 755 | # in polar projections, blat gives the bounding lat |
|---|
| 756 | # if not set, set something reasonable |
|---|
| 757 | if self.blat is None: self.blat = 60. |
|---|
| 758 | # help the user who forgets self.blat would better be negative in spstere |
|---|
| 759 | # (this actually serves for the default setting just above) |
|---|
| 760 | if self.proj == "spstere" and self.blat > 0: self.blat = -self.blat |
|---|
| 761 | # labels |
|---|
| 762 | mertab = np.r_[-360.:360.:15.] |
|---|
| 763 | partab = np.r_[-90.:90.:5.] |
|---|
| 764 | # ... unsupported projections |
|---|
| 765 | else: |
|---|
| 766 | print "!! ERROR !! unsupported projection. supported: "+\ |
|---|
| 767 | "cyl, npstere, spstere, ortho, moll, robin, lcc, laea, merc" |
|---|
| 768 | # finally define projection |
|---|
| 769 | m = Basemap(projection=self.proj,\ |
|---|
| 770 | lat_0=lat_0,lon_0=lon_0,\ |
|---|
| 771 | boundinglat=self.blat,\ |
|---|
| 772 | llcrnrlat=wlat[0],urcrnrlat=wlat[1],\ |
|---|
| 773 | llcrnrlon=wlon[0],urcrnrlon=wlon[1]) |
|---|
| 774 | # draw meridians and parallels |
|---|
| 775 | ft = int(mpl.rcParams['font.size']*3./4.) |
|---|
| 776 | zelatmax = 85. |
|---|
| 777 | m.drawmeridians(mertab,labels=merlab,color='grey',linewidth=0.75,fontsize=ft,fmt=format,latmax=zelatmax) |
|---|
| 778 | m.drawparallels(partab,labels=parlab,color='grey',linewidth=0.75,fontsize=ft,fmt=format,latmax=zelatmax) |
|---|
| 779 | # define background (see set_back.txt) |
|---|
| 780 | if self.back is not None: |
|---|
| 781 | if self.back in back.keys(): |
|---|
| 782 | print "**** info: loading a background, please wait.",self.back |
|---|
| 783 | if self.back not in ["coast","sea"]: |
|---|
| 784 | try: m.warpimage(back[self.back],scale=0.75) |
|---|
| 785 | except: print "!! ERROR !! no background image could be loaded. probably not connected to the internet?" |
|---|
| 786 | elif self.back == "coast": |
|---|
| 787 | m.drawcoastlines() |
|---|
| 788 | elif self.back == "sea": |
|---|
| 789 | m.drawlsmask(land_color='white',ocean_color='aqua') |
|---|
| 790 | else: |
|---|
| 791 | print "!! ERROR !! requested background not defined. change name or fill in set_back.txt" ; exit() |
|---|
| 792 | # define x and y given the projection |
|---|
| 793 | x, y = m(self.absc, self.ordi) |
|---|
| 794 | # contour field. first line contour then shaded contour. |
|---|
| 795 | if self.addcontour is not None: |
|---|
| 796 | objC2 = m.contour(x, y, what_I_contour, \ |
|---|
| 797 | zelevelsc, colors = ccol, linewidths = cline) |
|---|
| 798 | #mpl.clabel(objC2, inline=1, fontsize=10) |
|---|
| 799 | m.contourf(x, y, what_I_plot, zelevels, cmap = palette, alpha = self.trans) |
|---|
| 800 | ############################################################################################ |
|---|
| 801 | ### COLORBAR |
|---|
| 802 | ############################################################################################ |
|---|
| 803 | if self.trans > 0. and self.showcb: |
|---|
| 804 | ## draw colorbar. settings are different with projections. or if not mapmode. |
|---|
| 805 | if not self.mapmode: orientation=zeorientation ; frac = 0.075 ; pad = 0.03 ; lu = 0.5 |
|---|
| 806 | elif self.proj in ['moll']: orientation="horizontal" ; frac = 0.08 ; pad = 0.03 ; lu = 1.0 |
|---|
| 807 | elif self.proj in ['cyl']: orientation="vertical" ; frac = 0.023 ; pad = 0.03 ; lu = 0.5 |
|---|
| 808 | else: orientation = zeorientation ; frac = zefrac ; pad = 0.03 ; lu = 0.5 |
|---|
| 809 | zelevpal = np.linspace(zevmin,zevmax,num=min([ticks/2+1,21])) |
|---|
| 810 | zecb = mpl.colorbar(fraction=frac,pad=pad,\ |
|---|
| 811 | format=self.fmt,orientation=orientation,\ |
|---|
| 812 | ticks=zelevpal,\ |
|---|
| 813 | extend='neither',spacing='proportional') |
|---|
| 814 | if zeorientation == "horizontal": zecb.ax.set_xlabel(self.title) ; self.title = "" |
|---|
| 815 | # colorbar title --> units |
|---|
| 816 | if self.units not in ["dimless",""]: |
|---|
| 817 | zecb.ax.set_title("["+self.units+"]",fontsize=3.*mpl.rcParams['font.size']/4.,x=lu,y=1.025) |
|---|
| 818 | |
|---|
| 819 | ############################################################################################ |
|---|
| 820 | ### VECTORS. must be after the colorbar. we could also leave possibility for streamlines. |
|---|
| 821 | ############################################################################################ |
|---|
| 822 | ### not expecting NaN in self.addvecx and self.addvecy. masked arrays is just enough. |
|---|
| 823 | if self.addvecx is not None and self.addvecy is not None: |
|---|
| 824 | # vectors on map projection or simple 2D mapping |
|---|
| 825 | if self.mapmode: |
|---|
| 826 | [vecx,vecy] = m.rotate_vector(self.addvecx,self.addvecy,self.absc,self.ordi) # for metwinds only ? |
|---|
| 827 | else: |
|---|
| 828 | vecx,vecy = self.addvecx,self.addvecy |
|---|
| 829 | if x.ndim < 2 and y.ndim < 2: x,y = np.meshgrid(x,y) |
|---|
| 830 | # reference vector is scaled |
|---|
| 831 | if self.wscale is None: |
|---|
| 832 | self.wscale = ppcompute.mean(np.sqrt(self.addvecx*self.addvecx+self.addvecy*self.addvecy)) |
|---|
| 833 | # make vector field |
|---|
| 834 | if self.mapmode: |
|---|
| 835 | q = m.quiver( x[::self.stridevecy,::self.stridevecx],y[::self.stridevecy,::self.stridevecx],\ |
|---|
| 836 | vecx[::self.stridevecy,::self.stridevecx],vecy[::self.stridevecy,::self.stridevecx],\ |
|---|
| 837 | angles='xy',color=self.colorvec,pivot='tail',\ |
|---|
| 838 | scale=self.wscale*reducevec,width=widthvec ) |
|---|
| 839 | else: |
|---|
| 840 | q = mpl.quiver( x[::self.stridevecy,::self.stridevecx],y[::self.stridevecy,::self.stridevecx],\ |
|---|
| 841 | vecx[::self.stridevecy,::self.stridevecx],vecy[::self.stridevecy,::self.stridevecx],\ |
|---|
| 842 | angles='xy',color=self.colorvec,pivot='tail',\ |
|---|
| 843 | scale=self.wscale*reducevec,width=widthvec ) |
|---|
| 844 | # make vector key. |
|---|
| 845 | #keyh = 1.025 ; keyv = 1.05 # upper right corner over colorbar |
|---|
| 846 | keyh = 0.97 ; keyv = 1.05 |
|---|
| 847 | #keyh = -0.03 ; keyv = 1.08 # upper left corner |
|---|
| 848 | p = mpl.quiverkey(q,keyh,keyv,\ |
|---|
| 849 | self.wscale,str(int(self.wscale)),\ |
|---|
| 850 | fontproperties={'size': 'small'},\ |
|---|
| 851 | color='black',labelpos='S',labelsep = 0.07) |
|---|
| 852 | ############################################################################################ |
|---|
| 853 | ### TEXT. ANYWHERE. add_text.txt should be present with lines x ; y ; text ; color |
|---|
| 854 | ############################################################################################ |
|---|
| 855 | try: |
|---|
| 856 | f = open("add_text.txt", 'r') |
|---|
| 857 | for line in f: |
|---|
| 858 | if "#" in line: pass |
|---|
| 859 | else: |
|---|
| 860 | userx, usery, usert, userc = line.strip().split(';') |
|---|
| 861 | userc = userc.strip() |
|---|
| 862 | usert = usert.strip() |
|---|
| 863 | userx = float(userx.strip()) |
|---|
| 864 | usery = float(usery.strip()) |
|---|
| 865 | if self.mapmode: userx,usery = m(userx,usery) |
|---|
| 866 | mpl.text(userx,usery,usert,\ |
|---|
| 867 | color = userc,\ |
|---|
| 868 | horizontalalignment='center',\ |
|---|
| 869 | verticalalignment='center') |
|---|
| 870 | f.close() |
|---|
| 871 | except IOError: |
|---|
| 872 | pass |
|---|
