[705] | 1 | """ |
---|
| 2 | ASAP plotting class based on matplotlib. |
---|
| 3 | """ |
---|
| 4 | |
---|
| 5 | import sys |
---|
| 6 | from re import match |
---|
| 7 | import matplotlib |
---|
| 8 | |
---|
| 9 | from matplotlib.figure import Figure, Text |
---|
[1147] | 10 | from matplotlib.font_manager import FontProperties as FP |
---|
[1739] | 11 | from numpy import sqrt |
---|
[705] | 12 | from matplotlib import rc, rcParams |
---|
[1259] | 13 | from matplotlib.ticker import OldScalarFormatter |
---|
[2538] | 14 | from matplotlib import _pylab_helpers |
---|
[1147] | 15 | |
---|
[1826] | 16 | from asap.parameters import rcParams as asaprcParams |
---|
[1861] | 17 | from asap.logging import asaplog |
---|
[1826] | 18 | |
---|
[1425] | 19 | # API change in mpl >= 0.98 |
---|
| 20 | try: |
---|
| 21 | from matplotlib.transforms import blended_transform_factory |
---|
| 22 | except ImportError: |
---|
[1560] | 23 | from matplotlib.transforms import blend_xy_sep_transform as blended_transform_factory |
---|
[1425] | 24 | |
---|
[2169] | 25 | mvers = matplotlib.__version__.split(".") |
---|
| 26 | if int(mvers[0]) == 0 and int(mvers[1]) < 99: |
---|
[1819] | 27 | #print "Warning: matplotlib version < 0.87. This might cause errors. Please upgrade." |
---|
[1826] | 28 | asaplog.push( "matplotlib version < 0.99. This might cause errors. Please upgrade." ) |
---|
[1861] | 29 | asaplog.post( 'WARN' ) |
---|
[1019] | 30 | |
---|
[705] | 31 | class asaplotbase: |
---|
| 32 | """ |
---|
| 33 | ASAP plotting base class based on matplotlib. |
---|
| 34 | """ |
---|
| 35 | |
---|
[1563] | 36 | def __init__(self, rows=1, cols=0, title='', size=None, buffering=False): |
---|
[1019] | 37 | """ |
---|
| 38 | Create a new instance of the ASAPlot plotting class. |
---|
[705] | 39 | |
---|
[1019] | 40 | If rows < 1 then a separate call to set_panels() is required to define |
---|
| 41 | the panel layout; refer to the doctext for set_panels(). |
---|
| 42 | """ |
---|
[705] | 43 | self.is_dead = False |
---|
[1019] | 44 | self.figure = Figure(figsize=size, facecolor='#ddddee') |
---|
[705] | 45 | self.canvas = None |
---|
| 46 | |
---|
[1019] | 47 | self.set_title(title) |
---|
| 48 | self.subplots = [] |
---|
| 49 | if rows > 0: |
---|
| 50 | self.set_panels(rows, cols) |
---|
[705] | 51 | |
---|
[710] | 52 | # Set matplotlib default colour sequence. |
---|
| 53 | self.colormap = "green red black cyan magenta orange blue purple yellow pink".split() |
---|
[1019] | 54 | |
---|
[710] | 55 | c = asaprcParams['plotter.colours'] |
---|
| 56 | if isinstance(c,str) and len(c) > 0: |
---|
| 57 | self.colormap = c.split() |
---|
[2699] | 58 | # line styles need to be set as a list of numbers to use set_dashes |
---|
| 59 | self.lsalias = {"line": [1,0], |
---|
| 60 | "dashdot": [4,2,1,2], |
---|
| 61 | "dashed" : [4,2,4,2], |
---|
| 62 | "dotted" : [1,2], |
---|
[710] | 63 | "dashdotdot": [4,2,1,2,1,2], |
---|
| 64 | "dashdashdot": [4,2,4,2,1,2] |
---|
| 65 | } |
---|
| 66 | |
---|
| 67 | styles = "line dashed dotted dashdot".split() |
---|
| 68 | c = asaprcParams['plotter.linestyles'] |
---|
| 69 | if isinstance(c,str) and len(c) > 0: |
---|
| 70 | styles = c.split() |
---|
| 71 | s = [] |
---|
| 72 | for ls in styles: |
---|
| 73 | if self.lsalias.has_key(ls): |
---|
| 74 | s.append(self.lsalias.get(ls)) |
---|
| 75 | else: |
---|
| 76 | s.append('-') |
---|
| 77 | self.linestyles = s |
---|
| 78 | |
---|
[705] | 79 | self.color = 0; |
---|
[710] | 80 | self.linestyle = 0; |
---|
[1019] | 81 | self.attributes = {} |
---|
| 82 | self.loc = 0 |
---|
[705] | 83 | |
---|
[1019] | 84 | self.buffering = buffering |
---|
[705] | 85 | |
---|
[2451] | 86 | self.events = {'button_press':None, |
---|
| 87 | 'button_release':None, |
---|
| 88 | 'motion_notify':None} |
---|
| 89 | |
---|
[2700] | 90 | def _alive(self): |
---|
| 91 | # Return True if the GUI alives. |
---|
| 92 | if (not self.is_dead) and \ |
---|
| 93 | self.figmgr and hasattr(self.figmgr, "num"): |
---|
| 94 | figid = self.figmgr.num |
---|
| 95 | # Make sure figid=0 is what asapplotter expects. |
---|
| 96 | # It might be already destroied/overridden by matplotlib |
---|
| 97 | # commands or other methods using asaplot. |
---|
| 98 | return _pylab_helpers.Gcf.has_fignum(figid) and \ |
---|
| 99 | (self.figmgr == _pylab_helpers.Gcf.get_fig_manager(figid)) |
---|
| 100 | return False |
---|
| 101 | |
---|
| 102 | |
---|
| 103 | ### Delete artists ### |
---|
[705] | 104 | def clear(self): |
---|
[1019] | 105 | """ |
---|
[2693] | 106 | Delete all lines from the current subplot. |
---|
| 107 | Line numbering will restart from 0. |
---|
[1019] | 108 | """ |
---|
[705] | 109 | |
---|
[2697] | 110 | #for i in range(len(self.lines)): |
---|
| 111 | # self.delete(i) |
---|
[1019] | 112 | self.axes.clear() |
---|
| 113 | self.color = 0 |
---|
[2699] | 114 | self.linestyle = 0 |
---|
[1019] | 115 | self.lines = [] |
---|
[2697] | 116 | self.subplots[self.i]['lines'] = self.lines |
---|
[705] | 117 | |
---|
| 118 | def delete(self, numbers=None): |
---|
[1019] | 119 | """ |
---|
| 120 | Delete the 0-relative line number, default is to delete the last. |
---|
| 121 | The remaining lines are NOT renumbered. |
---|
| 122 | """ |
---|
[705] | 123 | |
---|
[1019] | 124 | if numbers is None: numbers = [len(self.lines)-1] |
---|
[705] | 125 | |
---|
[1019] | 126 | if not hasattr(numbers, '__iter__'): |
---|
| 127 | numbers = [numbers] |
---|
[705] | 128 | |
---|
[1019] | 129 | for number in numbers: |
---|
| 130 | if 0 <= number < len(self.lines): |
---|
| 131 | if self.lines[number] is not None: |
---|
| 132 | for line in self.lines[number]: |
---|
| 133 | line.set_linestyle('None') |
---|
| 134 | self.lines[number] = None |
---|
| 135 | self.show() |
---|
[705] | 136 | |
---|
| 137 | |
---|
[2700] | 138 | ### Set plot parameters ### |
---|
[705] | 139 | def hold(self, hold=True): |
---|
[1019] | 140 | """ |
---|
| 141 | Buffer graphics until subsequently released. |
---|
| 142 | """ |
---|
| 143 | self.buffering = hold |
---|
[705] | 144 | |
---|
[2700] | 145 | def palette(self, color, colormap=None, linestyle=0, linestyles=None): |
---|
| 146 | if colormap: |
---|
| 147 | if isinstance(colormap,list): |
---|
| 148 | self.colormap = colormap |
---|
| 149 | elif isinstance(colormap,str): |
---|
| 150 | self.colormap = colormap.split() |
---|
| 151 | if 0 <= color < len(self.colormap): |
---|
| 152 | self.color = color |
---|
| 153 | if linestyles: |
---|
| 154 | self.linestyles = [] |
---|
| 155 | if isinstance(linestyles,list): |
---|
| 156 | styles = linestyles |
---|
| 157 | elif isinstance(linestyles,str): |
---|
| 158 | styles = linestyles.split() |
---|
| 159 | for ls in styles: |
---|
| 160 | if self.lsalias.has_key(ls): |
---|
| 161 | self.linestyles.append(self.lsalias.get(ls)) |
---|
| 162 | else: |
---|
| 163 | self.linestyles.append(self.lsalias.get('line')) |
---|
| 164 | if 0 <= linestyle < len(self.linestyles): |
---|
| 165 | self.linestyle = linestyle |
---|
[705] | 166 | |
---|
| 167 | def legend(self, loc=None): |
---|
[1019] | 168 | """ |
---|
| 169 | Add a legend to the plot. |
---|
[705] | 170 | |
---|
[1019] | 171 | Any other value for loc else disables the legend: |
---|
| 172 | 1: upper right |
---|
| 173 | 2: upper left |
---|
| 174 | 3: lower left |
---|
| 175 | 4: lower right |
---|
| 176 | 5: right |
---|
| 177 | 6: center left |
---|
| 178 | 7: center right |
---|
| 179 | 8: lower center |
---|
| 180 | 9: upper center |
---|
| 181 | 10: center |
---|
[705] | 182 | |
---|
[1019] | 183 | """ |
---|
[1095] | 184 | if isinstance(loc, int): |
---|
[1098] | 185 | self.loc = None |
---|
| 186 | if 0 <= loc <= 10: self.loc = loc |
---|
[1095] | 187 | else: |
---|
| 188 | self.loc = None |
---|
| 189 | #self.show() |
---|
[705] | 190 | |
---|
[2700] | 191 | #def set_panels(self, rows=1, cols=0, n=-1, nplots=-1, ganged=True): |
---|
| 192 | def set_panels(self, rows=1, cols=0, n=-1, nplots=-1, margin=None,ganged=True): |
---|
[1019] | 193 | """ |
---|
[2700] | 194 | Set the panel layout. |
---|
[705] | 195 | |
---|
[2700] | 196 | rows and cols, if cols != 0, specify the number of rows and columns in |
---|
| 197 | a regular layout. (Indexing of these panels in matplotlib is row- |
---|
| 198 | major, i.e. column varies fastest.) |
---|
[705] | 199 | |
---|
[2700] | 200 | cols == 0 is interpreted as a retangular layout that accomodates |
---|
| 201 | 'rows' panels, e.g. rows == 6, cols == 0 is equivalent to |
---|
| 202 | rows == 2, cols == 3. |
---|
[705] | 203 | |
---|
[2700] | 204 | 0 <= n < rows*cols is interpreted as the 0-relative panel number in |
---|
| 205 | the configuration specified by rows and cols to be added to the |
---|
| 206 | current figure as its next 0-relative panel number (i). This allows |
---|
| 207 | non-regular panel layouts to be constructed via multiple calls. Any |
---|
| 208 | other value of n clears the plot and produces a rectangular array of |
---|
| 209 | empty panels. The number of these may be limited by nplots. |
---|
[1019] | 210 | """ |
---|
[2700] | 211 | if n < 0 and len(self.subplots): |
---|
| 212 | self.figure.clear() |
---|
| 213 | self.set_title() |
---|
[705] | 214 | |
---|
[2700] | 215 | if margin: |
---|
| 216 | lef, bot, rig, top, wsp, hsp = margin |
---|
| 217 | self.figure.subplots_adjust( |
---|
| 218 | left=lef,bottom=bot,right=rig,top=top,wspace=wsp,hspace=hsp) |
---|
| 219 | del lef,bot,rig,top,wsp,hsp |
---|
[705] | 220 | |
---|
[2700] | 221 | if rows < 1: rows = 1 |
---|
[705] | 222 | |
---|
[2700] | 223 | if cols <= 0: |
---|
| 224 | i = int(sqrt(rows)) |
---|
| 225 | if i*i < rows: i += 1 |
---|
| 226 | cols = i |
---|
[705] | 227 | |
---|
[2700] | 228 | if i*(i-1) >= rows: i -= 1 |
---|
| 229 | rows = i |
---|
[1546] | 230 | |
---|
[2700] | 231 | if 0 <= n < rows*cols: |
---|
| 232 | i = len(self.subplots) |
---|
[1546] | 233 | |
---|
[2700] | 234 | self.subplots.append({}) |
---|
[705] | 235 | |
---|
[2700] | 236 | self.subplots[i]['axes'] = self.figure.add_subplot(rows, |
---|
| 237 | cols, n+1) |
---|
| 238 | self.subplots[i]['lines'] = [] |
---|
[705] | 239 | |
---|
[2700] | 240 | if i == 0: self.subplot(0) |
---|
[705] | 241 | |
---|
[2700] | 242 | self.rows = 0 |
---|
| 243 | self.cols = 0 |
---|
[1826] | 244 | |
---|
[1019] | 245 | else: |
---|
[2700] | 246 | self.subplots = [] |
---|
[705] | 247 | |
---|
[2700] | 248 | if nplots < 1 or rows*cols < nplots: |
---|
| 249 | nplots = rows*cols |
---|
| 250 | if ganged: |
---|
| 251 | hsp,wsp = None,None |
---|
| 252 | if rows > 1: hsp = 0.0001 |
---|
| 253 | if cols > 1: wsp = 0.0001 |
---|
| 254 | self.figure.subplots_adjust(wspace=wsp,hspace=hsp) |
---|
| 255 | for i in range(nplots): |
---|
| 256 | self.subplots.append({}) |
---|
| 257 | self.subplots[i]['lines'] = [] |
---|
| 258 | if not ganged: |
---|
| 259 | self.subplots[i]['axes'] = self.figure.add_subplot(rows, |
---|
| 260 | cols, i+1) |
---|
| 261 | if asaprcParams['plotter.axesformatting'] != 'mpl': |
---|
| 262 | self.subplots[i]['axes'].xaxis.set_major_formatter(OldScalarFormatter()) |
---|
| 263 | else: |
---|
| 264 | if i == 0: |
---|
| 265 | self.subplots[i]['axes'] = self.figure.add_subplot(rows, |
---|
| 266 | cols, i+1) |
---|
| 267 | if asaprcParams['plotter.axesformatting'] != 'mpl': |
---|
[705] | 268 | |
---|
[2700] | 269 | self.subplots[i]['axes'].xaxis.set_major_formatter(OldScalarFormatter()) |
---|
| 270 | else: |
---|
| 271 | self.subplots[i]['axes'] = self.figure.add_subplot(rows, |
---|
| 272 | cols, i+1, |
---|
| 273 | sharex=self.subplots[0]['axes'], |
---|
| 274 | sharey=self.subplots[0]['axes']) |
---|
[705] | 275 | |
---|
[2700] | 276 | # Suppress tick labelling for interior subplots. |
---|
| 277 | if i <= (rows-1)*cols - 1: |
---|
| 278 | if i+cols < nplots: |
---|
| 279 | # Suppress x-labels for frames width |
---|
| 280 | # adjacent frames |
---|
| 281 | for tick in self.subplots[i]['axes'].xaxis.majorTicks: |
---|
| 282 | tick.label1On = False |
---|
| 283 | #self.subplots[i]['axes'].xaxis.label.set_visible(False) |
---|
| 284 | if i%cols: |
---|
| 285 | # Suppress y-labels for frames not in the left column. |
---|
| 286 | for tick in self.subplots[i]['axes'].yaxis.majorTicks: |
---|
| 287 | tick.label1On = False |
---|
| 288 | #self.subplots[i]['axes'].yaxis.label.set_visible(False) |
---|
| 289 | # disable the first tick of [1:ncol-1] of the last row |
---|
| 290 | #if i+1 < nplots: |
---|
| 291 | # self.subplots[i]['axes'].xaxis.majorTicks[0].label1On = False |
---|
| 292 | # set axes label state for interior subplots. |
---|
| 293 | if i%cols: |
---|
| 294 | self.subplots[i]['axes'].yaxis.label.set_visible(False) |
---|
| 295 | if (i <= (rows-1)*cols - 1) and (i+cols < nplots): |
---|
| 296 | self.subplots[i]['axes'].xaxis.label.set_visible(False) |
---|
| 297 | self.rows = rows |
---|
| 298 | self.cols = cols |
---|
| 299 | self.subplot(0) |
---|
| 300 | del rows,cols,n,nplots,margin,ganged,i |
---|
[705] | 301 | |
---|
[2700] | 302 | def subplot(self, i=None, inc=None): |
---|
[1019] | 303 | """ |
---|
[2700] | 304 | Set the subplot to the 0-relative panel number as defined by one or |
---|
| 305 | more invokations of set_panels(). |
---|
[1019] | 306 | """ |
---|
[2700] | 307 | l = len(self.subplots) |
---|
| 308 | if l: |
---|
| 309 | if i is not None: |
---|
| 310 | self.i = i |
---|
[705] | 311 | |
---|
[2700] | 312 | if inc is not None: |
---|
| 313 | self.i += inc |
---|
[705] | 314 | |
---|
[2700] | 315 | self.i %= l |
---|
| 316 | self.axes = self.subplots[self.i]['axes'] |
---|
| 317 | self.lines = self.subplots[self.i]['lines'] |
---|
[705] | 318 | |
---|
| 319 | def set_axes(self, what=None, *args, **kwargs): |
---|
[1019] | 320 | """ |
---|
| 321 | Set attributes for the axes by calling the relevant Axes.set_*() |
---|
| 322 | method. Colour translation is done as described in the doctext |
---|
| 323 | for palette(). |
---|
| 324 | """ |
---|
[705] | 325 | |
---|
[1019] | 326 | if what is None: return |
---|
| 327 | if what[-6:] == 'colour': what = what[:-6] + 'color' |
---|
[705] | 328 | |
---|
[1153] | 329 | key = "colour" |
---|
| 330 | if kwargs.has_key(key): |
---|
| 331 | val = kwargs.pop(key) |
---|
| 332 | kwargs["color"] = val |
---|
[705] | 333 | |
---|
[1153] | 334 | getattr(self.axes, "set_%s"%what)(*args, **kwargs) |
---|
[705] | 335 | |
---|
[1153] | 336 | self.show(hardrefresh=False) |
---|
[705] | 337 | |
---|
[1019] | 338 | |
---|
[705] | 339 | def set_figure(self, what=None, *args, **kwargs): |
---|
[1019] | 340 | """ |
---|
| 341 | Set attributes for the figure by calling the relevant Figure.set_*() |
---|
| 342 | method. Colour translation is done as described in the doctext |
---|
| 343 | for palette(). |
---|
| 344 | """ |
---|
[705] | 345 | |
---|
[1019] | 346 | if what is None: return |
---|
| 347 | if what[-6:] == 'colour': what = what[:-6] + 'color' |
---|
| 348 | #if what[-5:] == 'color' and len(args): |
---|
| 349 | # args = (get_colour(args[0]),) |
---|
[705] | 350 | |
---|
[1019] | 351 | newargs = {} |
---|
| 352 | for k, v in kwargs.iteritems(): |
---|
| 353 | k = k.lower() |
---|
| 354 | if k == 'colour': k = 'color' |
---|
| 355 | newargs[k] = v |
---|
[705] | 356 | |
---|
[1019] | 357 | getattr(self.figure, "set_%s"%what)(*args, **newargs) |
---|
[1153] | 358 | self.show(hardrefresh=False) |
---|
[705] | 359 | |
---|
| 360 | |
---|
| 361 | def set_limits(self, xlim=None, ylim=None): |
---|
[1019] | 362 | """ |
---|
| 363 | Set x-, and y-limits for each subplot. |
---|
[705] | 364 | |
---|
[1019] | 365 | xlim = [xmin, xmax] as in axes.set_xlim(). |
---|
| 366 | ylim = [ymin, ymax] as in axes.set_ylim(). |
---|
| 367 | """ |
---|
| 368 | for s in self.subplots: |
---|
| 369 | self.axes = s['axes'] |
---|
| 370 | self.lines = s['lines'] |
---|
[705] | 371 | oldxlim = list(self.axes.get_xlim()) |
---|
| 372 | oldylim = list(self.axes.get_ylim()) |
---|
| 373 | if xlim is not None: |
---|
| 374 | for i in range(len(xlim)): |
---|
| 375 | if xlim[i] is not None: |
---|
| 376 | oldxlim[i] = xlim[i] |
---|
[1019] | 377 | if ylim is not None: |
---|
[705] | 378 | for i in range(len(ylim)): |
---|
| 379 | if ylim[i] is not None: |
---|
| 380 | oldylim[i] = ylim[i] |
---|
| 381 | self.axes.set_xlim(oldxlim) |
---|
| 382 | self.axes.set_ylim(oldylim) |
---|
| 383 | return |
---|
| 384 | |
---|
| 385 | |
---|
| 386 | def set_line(self, number=None, **kwargs): |
---|
[1019] | 387 | """ |
---|
| 388 | Set attributes for the specified line, or else the next line(s) |
---|
| 389 | to be plotted. |
---|
[705] | 390 | |
---|
[1019] | 391 | number is the 0-relative number of a line that has already been |
---|
| 392 | plotted. If no such line exists, attributes are recorded and used |
---|
| 393 | for the next line(s) to be plotted. |
---|
[705] | 394 | |
---|
[1019] | 395 | Keyword arguments specify Line2D attributes, e.g. color='r'. Do |
---|
[705] | 396 | |
---|
[1019] | 397 | import matplotlib |
---|
| 398 | help(matplotlib.lines) |
---|
[705] | 399 | |
---|
[1019] | 400 | The set_* methods of class Line2D define the attribute names and |
---|
[2451] | 401 | values. For non-US usage, 'colour' is recognized as synonymous with |
---|
| 402 | 'color'. |
---|
[705] | 403 | |
---|
[1019] | 404 | Set the value to None to delete an attribute. |
---|
[705] | 405 | |
---|
[1019] | 406 | Colour translation is done as described in the doctext for palette(). |
---|
| 407 | """ |
---|
[705] | 408 | |
---|
[1019] | 409 | redraw = False |
---|
| 410 | for k, v in kwargs.iteritems(): |
---|
| 411 | k = k.lower() |
---|
| 412 | if k == 'colour': k = 'color' |
---|
[705] | 413 | |
---|
[1019] | 414 | if 0 <= number < len(self.lines): |
---|
| 415 | if self.lines[number] is not None: |
---|
| 416 | for line in self.lines[number]: |
---|
| 417 | getattr(line, "set_%s"%k)(v) |
---|
| 418 | redraw = True |
---|
| 419 | else: |
---|
| 420 | if v is None: |
---|
| 421 | del self.attributes[k] |
---|
| 422 | else: |
---|
| 423 | self.attributes[k] = v |
---|
[705] | 424 | |
---|
[1153] | 425 | if redraw: self.show(hardrefresh=False) |
---|
[705] | 426 | |
---|
| 427 | |
---|
[2700] | 428 | def get_line(self): |
---|
[1019] | 429 | """ |
---|
[2700] | 430 | Get the current default line attributes. |
---|
| 431 | """ |
---|
| 432 | return self.attributes |
---|
[705] | 433 | |
---|
| 434 | |
---|
[2700] | 435 | ### Actual plot methods ### |
---|
| 436 | def hist(self, x=None, y=None, fmt=None, add=None): |
---|
| 437 | """ |
---|
| 438 | Plot a histogram. N.B. the x values refer to the start of the |
---|
| 439 | histogram bin. |
---|
[705] | 440 | |
---|
[2700] | 441 | fmt is the line style as in plot(). |
---|
[1019] | 442 | """ |
---|
[2700] | 443 | from numpy import array |
---|
| 444 | from numpy.ma import MaskedArray |
---|
| 445 | if x is None: |
---|
| 446 | if y is None: return |
---|
| 447 | x = range(len(y)) |
---|
[705] | 448 | |
---|
[2700] | 449 | if len(x) != len(y): |
---|
| 450 | return |
---|
| 451 | l2 = 2*len(x) |
---|
| 452 | x2 = range(l2) |
---|
| 453 | y2 = range(12) |
---|
| 454 | y2 = range(l2) |
---|
| 455 | m2 = range(l2) |
---|
| 456 | ymsk = None |
---|
| 457 | ydat = None |
---|
| 458 | if hasattr(y, "raw_mask"): |
---|
| 459 | # numpy < 1.1 |
---|
| 460 | ymsk = y.raw_mask() |
---|
| 461 | ydat = y.raw_data() |
---|
| 462 | else: |
---|
| 463 | ymsk = y.mask |
---|
| 464 | ydat = y.data |
---|
| 465 | for i in range(l2): |
---|
| 466 | x2[i] = x[i/2] |
---|
| 467 | m2[i] = ymsk[i/2] |
---|
[1819] | 468 | |
---|
[2700] | 469 | y2[0] = 0.0 |
---|
| 470 | for i in range(1,l2): |
---|
| 471 | y2[i] = ydat[(i-1)/2] |
---|
[705] | 472 | |
---|
[2700] | 473 | self.plot(x2, MaskedArray(y2,mask=m2,copy=0), fmt, add) |
---|
[705] | 474 | |
---|
| 475 | |
---|
[2700] | 476 | def plot(self, x=None, y=None, fmt=None, add=None): |
---|
| 477 | """ |
---|
| 478 | Plot the next line in the current frame using the current line |
---|
| 479 | attributes. The ASAPlot graphics window will be mapped and raised. |
---|
[1819] | 480 | |
---|
[2700] | 481 | The argument list works a bit like the matlab plot() function. |
---|
| 482 | """ |
---|
| 483 | if x is None: |
---|
| 484 | if y is None: return |
---|
| 485 | x = range(len(y)) |
---|
[705] | 486 | |
---|
[2700] | 487 | elif y is None: |
---|
| 488 | y = x |
---|
| 489 | x = range(len(y)) |
---|
| 490 | if fmt is None: |
---|
| 491 | line = self.axes.plot(x, y) |
---|
| 492 | else: |
---|
| 493 | line = self.axes.plot(x, y, fmt) |
---|
| 494 | # add a picker to lines for spectral value mode. |
---|
| 495 | # matplotlib.axes.plot returns a list of line object (1 element) |
---|
| 496 | line[0].set_picker(5.0) |
---|
[705] | 497 | |
---|
[2700] | 498 | # Add to an existing line? |
---|
| 499 | i = None |
---|
| 500 | if add is None or len(self.lines) < add < 0: |
---|
| 501 | # Don't add. |
---|
| 502 | self.lines.append(line) |
---|
| 503 | i = len(self.lines) - 1 |
---|
| 504 | else: |
---|
| 505 | if add == 0: add = len(self.lines) |
---|
| 506 | i = add - 1 |
---|
| 507 | self.lines[i].extend(line) |
---|
[705] | 508 | |
---|
[2700] | 509 | # Set/reset attributes for the line. |
---|
| 510 | gotcolour = False |
---|
| 511 | for k, v in self.attributes.iteritems(): |
---|
| 512 | if k == 'color': gotcolour = True |
---|
| 513 | for segment in self.lines[i]: |
---|
| 514 | getattr(segment, "set_%s"%k)(v) |
---|
[705] | 515 | |
---|
[2700] | 516 | if not gotcolour and len(self.colormap): |
---|
| 517 | for segment in self.lines[i]: |
---|
| 518 | getattr(segment, "set_color")(self.colormap[self.color]) |
---|
| 519 | if len(self.colormap) == 1: |
---|
| 520 | getattr(segment, "set_dashes")(self.linestyles[self.linestyle]) |
---|
[705] | 521 | |
---|
[2700] | 522 | self.color += 1 |
---|
| 523 | if self.color >= len(self.colormap): |
---|
| 524 | self.color = 0 |
---|
[1826] | 525 | |
---|
[2700] | 526 | if len(self.colormap) == 1: |
---|
| 527 | self.linestyle += 1 |
---|
| 528 | if self.linestyle >= len(self.linestyles): |
---|
| 529 | self.linestyle = 0 |
---|
[1259] | 530 | |
---|
[2700] | 531 | self.show() |
---|
[705] | 532 | |
---|
[1926] | 533 | |
---|
[1153] | 534 | def tidy(self): |
---|
| 535 | # this needs to be exceuted after the first "refresh" |
---|
| 536 | nplots = len(self.subplots) |
---|
| 537 | if nplots == 1: return |
---|
| 538 | for i in xrange(nplots): |
---|
| 539 | ax = self.subplots[i]['axes'] |
---|
| 540 | if i%self.cols: |
---|
| 541 | ax.xaxis.majorTicks[0].label1On = False |
---|
| 542 | else: |
---|
| 543 | if i != 0: |
---|
| 544 | ax.yaxis.majorTicks[-1].label1On = False |
---|
[1926] | 545 | ## set axes label state for interior subplots. |
---|
| 546 | #innerax=False |
---|
| 547 | #if i%self.cols: |
---|
| 548 | # ax.yaxis.label.set_visible(innerax) |
---|
| 549 | #if (i <= (self.rows-1)*self.cols - 1) and (i+self.cols < nplots): |
---|
| 550 | # ax.xaxis.label.set_visible(innerax) |
---|
| 551 | |
---|
[1153] | 552 | |
---|
[705] | 553 | def set_title(self, title=None): |
---|
[1019] | 554 | """ |
---|
| 555 | Set the title of the plot window. Use the previous title if title is |
---|
| 556 | omitted. |
---|
| 557 | """ |
---|
| 558 | if title is not None: |
---|
| 559 | self.title = title |
---|
[705] | 560 | |
---|
[1019] | 561 | self.figure.text(0.5, 0.95, self.title, horizontalalignment='center') |
---|
[705] | 562 | |
---|
| 563 | |
---|
[2700] | 564 | def text(self, *args, **kwargs): |
---|
| 565 | """ |
---|
| 566 | Add text to the figure. |
---|
| 567 | """ |
---|
| 568 | self.figure.text(*args, **kwargs) |
---|
| 569 | self.show() |
---|
| 570 | |
---|
| 571 | def vline_with_label(self, x, y, label, |
---|
| 572 | location='bottom', rotate=0.0, **kwargs): |
---|
| 573 | """ |
---|
| 574 | Plot a vertical line with label. |
---|
| 575 | It takes 'world' values fo x and y. |
---|
| 576 | """ |
---|
| 577 | ax = self.axes |
---|
| 578 | # need this to suppress autoscaling during this function |
---|
| 579 | self.axes.set_autoscale_on(False) |
---|
| 580 | ymin = 0.0 |
---|
| 581 | ymax = 1.0 |
---|
| 582 | valign = 'center' |
---|
| 583 | if location.lower() == 'top': |
---|
| 584 | y = max(0.0, y) |
---|
| 585 | elif location.lower() == 'bottom': |
---|
| 586 | y = min(0.0, y) |
---|
| 587 | lbloffset = 0.06 |
---|
| 588 | # a rough estimate for the bb of the text |
---|
| 589 | if rotate > 0.0: lbloffset = 0.03*len(label) |
---|
| 590 | peakoffset = 0.01 |
---|
| 591 | xy = None |
---|
| 592 | xy0 = None |
---|
| 593 | # matplotlib api change 0.98 is using transform now |
---|
| 594 | if hasattr(ax.transData, "inverse_xy_tup"): |
---|
| 595 | # get relative coords |
---|
| 596 | xy0 = ax.transData.xy_tup((x,y)) |
---|
| 597 | xy = ax.transAxes.inverse_xy_tup(xy0) |
---|
| 598 | else: |
---|
| 599 | xy0 = ax.transData.transform((x,y)) |
---|
| 600 | # get relative coords |
---|
| 601 | xy = ax.transAxes.inverted().transform(xy0) |
---|
| 602 | if location.lower() == 'top': |
---|
| 603 | ymax = 1.0-lbloffset |
---|
| 604 | ymin = xy[1]+peakoffset |
---|
| 605 | valign = 'bottom' |
---|
| 606 | ylbl = ymax+0.01 |
---|
| 607 | elif location.lower() == 'bottom': |
---|
| 608 | ymin = lbloffset |
---|
| 609 | ymax = xy[1]-peakoffset |
---|
| 610 | valign = 'top' |
---|
| 611 | ylbl = ymin-0.01 |
---|
| 612 | trans = blended_transform_factory(ax.transData, ax.transAxes) |
---|
| 613 | l = ax.axvline(x, ymin, ymax, color='black', **kwargs) |
---|
| 614 | t = ax.text(x, ylbl ,label, verticalalignment=valign, |
---|
| 615 | horizontalalignment='center', |
---|
| 616 | rotation=rotate,transform = trans) |
---|
| 617 | self.axes.set_autoscale_on(True) |
---|
| 618 | |
---|
| 619 | def release(self): |
---|
| 620 | """ |
---|
| 621 | Release buffered graphics. |
---|
| 622 | """ |
---|
| 623 | self.buffering = False |
---|
| 624 | self.show() |
---|
| 625 | |
---|
| 626 | |
---|
[1153] | 627 | def show(self, hardrefresh=True): |
---|
[1019] | 628 | """ |
---|
| 629 | Show graphics dependent on the current buffering state. |
---|
| 630 | """ |
---|
[1153] | 631 | if not hardrefresh: return |
---|
[1019] | 632 | if not self.buffering: |
---|
| 633 | if self.loc is not None: |
---|
[1086] | 634 | for sp in self.subplots: |
---|
[1019] | 635 | lines = [] |
---|
| 636 | labels = [] |
---|
| 637 | i = 0 |
---|
[1086] | 638 | for line in sp['lines']: |
---|
[1019] | 639 | i += 1 |
---|
| 640 | if line is not None: |
---|
| 641 | lines.append(line[0]) |
---|
| 642 | lbl = line[0].get_label() |
---|
| 643 | if lbl == '': |
---|
| 644 | lbl = str(i) |
---|
| 645 | labels.append(lbl) |
---|
[705] | 646 | |
---|
[1019] | 647 | if len(lines): |
---|
[1147] | 648 | fp = FP(size=rcParams['legend.fontsize']) |
---|
[2068] | 649 | #fsz = fp.get_size_in_points() - len(lines) |
---|
| 650 | fsz = fp.get_size_in_points() - max(len(lines),self.cols) |
---|
| 651 | #fp.set_size(max(fsz,6)) |
---|
| 652 | fp.set_size(max(fsz,8)) |
---|
[1086] | 653 | sp['axes'].legend(tuple(lines), tuple(labels), |
---|
[1147] | 654 | self.loc, prop=fp) |
---|
[1946] | 655 | #else: |
---|
| 656 | # sp['axes'].legend((' ')) |
---|
[705] | 657 | |
---|
[1086] | 658 | from matplotlib.artist import setp |
---|
[1560] | 659 | fpx = FP(size=rcParams['xtick.labelsize']) |
---|
| 660 | xts = fpx.get_size_in_points()- (self.cols)/2 |
---|
| 661 | fpy = FP(size=rcParams['ytick.labelsize']) |
---|
| 662 | yts = fpy.get_size_in_points() - (self.rows)/2 |
---|
| 663 | fpa = FP(size=rcParams['axes.labelsize']) |
---|
| 664 | fpat = FP(size=rcParams['axes.titlesize']) |
---|
| 665 | axsize = fpa.get_size_in_points() |
---|
[1819] | 666 | tsize = fpat.get_size_in_points()-(self.cols)/2 |
---|
[1086] | 667 | for sp in self.subplots: |
---|
| 668 | ax = sp['axes'] |
---|
[1819] | 669 | ax.title.set_size(tsize) |
---|
[1086] | 670 | setp(ax.get_xticklabels(), fontsize=xts) |
---|
| 671 | setp(ax.get_yticklabels(), fontsize=yts) |
---|
| 672 | off = 0 |
---|
[1819] | 673 | if self.cols > 1: off = self.cols |
---|
[1560] | 674 | ax.xaxis.label.set_size(axsize-off) |
---|
[1819] | 675 | off = 0 |
---|
| 676 | if self.rows > 1: off = self.rows |
---|
[1560] | 677 | ax.yaxis.label.set_size(axsize-off) |
---|
[705] | 678 | |
---|
[2700] | 679 | def save(self, fname=None, orientation=None, dpi=None, papertype=None): |
---|
[1019] | 680 | """ |
---|
[2700] | 681 | Save the plot to a file. |
---|
| 682 | |
---|
| 683 | fname is the name of the output file. The image format is determined |
---|
| 684 | from the file suffix; 'png', 'ps', and 'eps' are recognized. If no |
---|
| 685 | file name is specified 'yyyymmdd_hhmmss.png' is created in the current |
---|
| 686 | directory. |
---|
[1019] | 687 | """ |
---|
[2700] | 688 | from asap import rcParams |
---|
| 689 | if papertype is None: |
---|
| 690 | papertype = rcParams['plotter.papertype'] |
---|
| 691 | if fname is None: |
---|
| 692 | from datetime import datetime |
---|
| 693 | dstr = datetime.now().strftime('%Y%m%d_%H%M%S') |
---|
| 694 | fname = 'asap'+dstr+'.png' |
---|
[705] | 695 | |
---|
[2700] | 696 | d = ['png','.ps','eps', 'svg'] |
---|
[705] | 697 | |
---|
[2700] | 698 | from os.path import expandvars |
---|
| 699 | fname = expandvars(fname) |
---|
[705] | 700 | |
---|
[2700] | 701 | if fname[-3:].lower() in d: |
---|
| 702 | try: |
---|
| 703 | if fname[-3:].lower() == ".ps": |
---|
| 704 | from matplotlib import __version__ as mv |
---|
| 705 | w = self.figure.get_figwidth() |
---|
| 706 | h = self.figure.get_figheight() |
---|
| 707 | |
---|
| 708 | if orientation is None: |
---|
| 709 | # oriented |
---|
| 710 | if w > h: |
---|
| 711 | orientation = 'landscape' |
---|
| 712 | else: |
---|
| 713 | orientation = 'portrait' |
---|
| 714 | from matplotlib.backends.backend_ps import papersize |
---|
| 715 | pw,ph = papersize[papertype.lower()] |
---|
| 716 | ds = None |
---|
| 717 | if orientation == 'landscape': |
---|
| 718 | ds = min(ph/w, pw/h) |
---|
| 719 | else: |
---|
| 720 | ds = min(pw/w, ph/h) |
---|
| 721 | ow = ds * w |
---|
| 722 | oh = ds * h |
---|
| 723 | self.figure.set_size_inches((ow, oh)) |
---|
| 724 | self.figure.savefig(fname, orientation=orientation, |
---|
| 725 | papertype=papertype.lower()) |
---|
| 726 | self.figure.set_size_inches((w, h)) |
---|
| 727 | print 'Written file %s' % (fname) |
---|
| 728 | else: |
---|
| 729 | if dpi is None: |
---|
| 730 | dpi =150 |
---|
| 731 | self.figure.savefig(fname,dpi=dpi) |
---|
| 732 | print 'Written file %s' % (fname) |
---|
| 733 | except IOError, msg: |
---|
| 734 | #print 'Failed to save %s: Error msg was\n\n%s' % (fname, err) |
---|
| 735 | asaplog.post() |
---|
| 736 | asaplog.push('Failed to save %s: Error msg was\n\n%s' % (fname, str(msg))) |
---|
| 737 | asaplog.post( 'ERROR' ) |
---|
| 738 | return |
---|
| 739 | else: |
---|
| 740 | #print "Invalid image type. Valid types are:" |
---|
| 741 | #print "'ps', 'eps', 'png'" |
---|
| 742 | asaplog.push( "Invalid image type. Valid types are:" ) |
---|
| 743 | asaplog.push( "'ps', 'eps', 'png', 'svg'" ) |
---|
| 744 | asaplog.post('WARN') |
---|
| 745 | |
---|
| 746 | |
---|
| 747 | ### GUI event methods ### |
---|
| 748 | def position(self): |
---|
[1019] | 749 | """ |
---|
[2700] | 750 | Use the mouse to get a position from a graph. |
---|
[1019] | 751 | """ |
---|
[1147] | 752 | |
---|
[2700] | 753 | def position_disable(event): |
---|
| 754 | self.register('button_press', None) |
---|
| 755 | print '%.4f, %.4f' % (event.xdata, event.ydata) |
---|
| 756 | |
---|
| 757 | print 'Press any mouse button...' |
---|
| 758 | self.register('button_press', position_disable) |
---|
| 759 | |
---|
| 760 | |
---|
| 761 | def get_region(self): |
---|
| 762 | pos = [] |
---|
| 763 | print "Please select the bottom/left point" |
---|
| 764 | pos.append(self.figure.ginput(n=1, show_clicks=False)[0]) |
---|
| 765 | print "Please select the top/right point" |
---|
| 766 | pos.append(self.figure.ginput(n=1, show_clicks=False)[0]) |
---|
| 767 | return pos |
---|
| 768 | |
---|
| 769 | def get_point(self): |
---|
| 770 | print "Please select the point" |
---|
| 771 | pt = self.figure.ginput(n=1, show_clicks=False) |
---|
| 772 | if pt: |
---|
| 773 | return pt[0] |
---|
| 774 | else: |
---|
| 775 | return None |
---|
| 776 | |
---|
| 777 | def region(self): |
---|
[1147] | 778 | """ |
---|
[2700] | 779 | Use the mouse to get a rectangular region from a plot. |
---|
| 780 | |
---|
| 781 | The return value is [x0, y0, x1, y1] in world coordinates. |
---|
[1147] | 782 | """ |
---|
[2700] | 783 | |
---|
| 784 | def region_start(event): |
---|
| 785 | self.rect = {'x': event.x, 'y': event.y, |
---|
| 786 | 'world': [event.xdata, event.ydata, |
---|
| 787 | event.xdata, event.ydata]} |
---|
| 788 | self.register('button_press', None) |
---|
| 789 | self.register('motion_notify', region_draw) |
---|
| 790 | self.register('button_release', region_disable) |
---|
| 791 | |
---|
| 792 | def region_draw(event): |
---|
| 793 | self.figmgr.toolbar.draw_rubberband(event, event.x, event.y, |
---|
| 794 | self.rect['x'], self.rect['y']) |
---|
| 795 | |
---|
| 796 | def region_disable(event): |
---|
| 797 | self.register('motion_notify', None) |
---|
| 798 | self.register('button_release', None) |
---|
| 799 | |
---|
| 800 | self.rect['world'][2:4] = [event.xdata, event.ydata] |
---|
| 801 | print '(%.2f, %.2f) (%.2f, %.2f)' % (self.rect['world'][0], |
---|
| 802 | self.rect['world'][1], self.rect['world'][2], |
---|
| 803 | self.rect['world'][3]) |
---|
| 804 | self.figmgr.toolbar.release(event) |
---|
| 805 | |
---|
| 806 | self.register('button_press', region_start) |
---|
| 807 | |
---|
| 808 | # This has to be modified to block and return the result (currently |
---|
| 809 | # printed by region_disable) when that becomes possible in matplotlib. |
---|
| 810 | |
---|
| 811 | return [0.0, 0.0, 0.0, 0.0] |
---|
| 812 | |
---|
| 813 | |
---|
| 814 | def register(self, type=None, func=None): |
---|
| 815 | """ |
---|
| 816 | Register, reregister, or deregister events of type 'button_press', |
---|
| 817 | 'button_release', or 'motion_notify'. |
---|
| 818 | |
---|
| 819 | The specified callback function should have the following signature: |
---|
| 820 | |
---|
| 821 | def func(event) |
---|
| 822 | |
---|
| 823 | where event is an MplEvent instance containing the following data: |
---|
| 824 | |
---|
| 825 | name # Event name. |
---|
| 826 | canvas # FigureCanvas instance generating the event. |
---|
| 827 | x = None # x position - pixels from left of canvas. |
---|
| 828 | y = None # y position - pixels from bottom of canvas. |
---|
| 829 | button = None # Button pressed: None, 1, 2, 3. |
---|
| 830 | key = None # Key pressed: None, chr(range(255)), shift, |
---|
| 831 | win, or control |
---|
| 832 | inaxes = None # Axes instance if cursor within axes. |
---|
| 833 | xdata = None # x world coordinate. |
---|
| 834 | ydata = None # y world coordinate. |
---|
| 835 | |
---|
| 836 | For example: |
---|
| 837 | |
---|
| 838 | def mouse_move(event): |
---|
| 839 | print event.xdata, event.ydata |
---|
| 840 | |
---|
| 841 | a = asaplot() |
---|
| 842 | a.register('motion_notify', mouse_move) |
---|
| 843 | |
---|
| 844 | If func is None, the event is deregistered. |
---|
| 845 | |
---|
| 846 | Note that in TkAgg keyboard button presses don't generate an event. |
---|
| 847 | """ |
---|
| 848 | |
---|
| 849 | if not self.events.has_key(type): return |
---|
| 850 | |
---|
| 851 | if func is None: |
---|
| 852 | if self.events[type] is not None: |
---|
| 853 | # It's not clear that this does anything. |
---|
| 854 | self.canvas.mpl_disconnect(self.events[type]) |
---|
| 855 | self.events[type] = None |
---|
| 856 | |
---|
| 857 | # It seems to be necessary to return events to the toolbar. <-- Not ture. 2010.Jul.14.kana. |
---|
| 858 | #if type == 'motion_notify': |
---|
| 859 | # self.canvas.mpl_connect(type + '_event', |
---|
| 860 | # self.figmgr.toolbar.mouse_move) |
---|
| 861 | #elif type == 'button_press': |
---|
| 862 | # self.canvas.mpl_connect(type + '_event', |
---|
| 863 | # self.figmgr.toolbar.press) |
---|
| 864 | #elif type == 'button_release': |
---|
| 865 | # self.canvas.mpl_connect(type + '_event', |
---|
| 866 | # self.figmgr.toolbar.release) |
---|
| 867 | |
---|
[1535] | 868 | else: |
---|
[2700] | 869 | self.events[type] = self.canvas.mpl_connect(type + '_event', func) |
---|
[2538] | 870 | |
---|