source: trunk/python/asaplotbase.py@ 2118

Last change on this file since 2118 was 2068, checked in by Kana Sugimoto, 14 years ago

New Development: No

JIRA Issue: No (minior improvement)

Ready for Test: Yes

Interface Changes: No

What Interface Changed:

Test Programs: plot many panels and see legend font size is properly scaled

Put in Release Notes: No

Module(s): asapplotter, sdplot

Description: set the legend font size smaller when many panels are plotted.


  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 29.0 KB
RevLine 
[705]1"""
2ASAP plotting class based on matplotlib.
3"""
4
5import sys
6from re import match
7import matplotlib
8
9from matplotlib.figure import Figure, Text
[1147]10from matplotlib.font_manager import FontProperties as FP
[1739]11from numpy import sqrt
[705]12from matplotlib import rc, rcParams
[1259]13from matplotlib.ticker import OldScalarFormatter
[1147]14
[1826]15from asap.parameters import rcParams as asaprcParams
[1861]16from asap.logging import asaplog
[1826]17
[1425]18# API change in mpl >= 0.98
19try:
20 from matplotlib.transforms import blended_transform_factory
21except ImportError:
[1560]22 from matplotlib.transforms import blend_xy_sep_transform as blended_transform_factory
[1425]23
[1826]24if int(matplotlib.__version__.split(".")[1]) < 99:
[1819]25 #print "Warning: matplotlib version < 0.87. This might cause errors. Please upgrade."
[1826]26 asaplog.push( "matplotlib version < 0.99. This might cause errors. Please upgrade." )
[1861]27 asaplog.post( 'WARN' )
[1019]28
[705]29class asaplotbase:
30 """
31 ASAP plotting base class based on matplotlib.
32 """
33
[1563]34 def __init__(self, rows=1, cols=0, title='', size=None, buffering=False):
[1019]35 """
36 Create a new instance of the ASAPlot plotting class.
[705]37
[1019]38 If rows < 1 then a separate call to set_panels() is required to define
39 the panel layout; refer to the doctext for set_panels().
40 """
[705]41 self.is_dead = False
[1019]42 self.figure = Figure(figsize=size, facecolor='#ddddee')
[705]43 self.canvas = None
44
[1019]45 self.set_title(title)
46 self.subplots = []
47 if rows > 0:
48 self.set_panels(rows, cols)
[705]49
[710]50 # Set matplotlib default colour sequence.
51 self.colormap = "green red black cyan magenta orange blue purple yellow pink".split()
[1019]52
[710]53 c = asaprcParams['plotter.colours']
54 if isinstance(c,str) and len(c) > 0:
55 self.colormap = c.split()
56
57 self.lsalias = {"line": [1,0],
58 "dashdot": [4,2,1,2],
59 "dashed" : [4,2,4,2],
60 "dotted" : [1,2],
61 "dashdotdot": [4,2,1,2,1,2],
62 "dashdashdot": [4,2,4,2,1,2]
63 }
64
65 styles = "line dashed dotted dashdot".split()
66 c = asaprcParams['plotter.linestyles']
67 if isinstance(c,str) and len(c) > 0:
68 styles = c.split()
69 s = []
70 for ls in styles:
71 if self.lsalias.has_key(ls):
72 s.append(self.lsalias.get(ls))
73 else:
74 s.append('-')
75 self.linestyles = s
76
[705]77 self.color = 0;
[710]78 self.linestyle = 0;
[1019]79 self.attributes = {}
80 self.loc = 0
[705]81
[1019]82 self.buffering = buffering
[705]83
84 def clear(self):
[1019]85 """
[1147]86 Delete all lines from the plot. Line numbering will restart from 0.
[1019]87 """
[705]88
[1019]89 for i in range(len(self.lines)):
90 self.delete(i)
91 self.axes.clear()
92 self.color = 0
93 self.lines = []
[705]94
[710]95 def palette(self, color, colormap=None, linestyle=0, linestyles=None):
[705]96 if colormap:
[710]97 if isinstance(colormap,list):
98 self.colormap = colormap
99 elif isinstance(colormap,str):
100 self.colormap = colormap.split()
[705]101 if 0 <= color < len(self.colormap):
102 self.color = color
[710]103 if linestyles:
104 self.linestyles = []
105 if isinstance(linestyles,list):
106 styles = linestyles
107 elif isinstance(linestyles,str):
108 styles = linestyles.split()
109 for ls in styles:
110 if self.lsalias.has_key(ls):
111 self.linestyles.append(self.lsalias.get(ls))
112 else:
113 self.linestyles.append(self.lsalias.get('line'))
114 if 0 <= linestyle < len(self.linestyles):
115 self.linestyle = linestyle
[705]116
117 def delete(self, numbers=None):
[1019]118 """
119 Delete the 0-relative line number, default is to delete the last.
120 The remaining lines are NOT renumbered.
121 """
[705]122
[1019]123 if numbers is None: numbers = [len(self.lines)-1]
[705]124
[1019]125 if not hasattr(numbers, '__iter__'):
126 numbers = [numbers]
[705]127
[1019]128 for number in numbers:
129 if 0 <= number < len(self.lines):
130 if self.lines[number] is not None:
131 for line in self.lines[number]:
132 line.set_linestyle('None')
133 self.lines[number] = None
134 self.show()
[705]135
136 def get_line(self):
[1019]137 """
138 Get the current default line attributes.
139 """
140 return self.attributes
[705]141
142
[1086]143 def hist(self, x=None, y=None, fmt=None, add=None):
[1019]144 """
145 Plot a histogram. N.B. the x values refer to the start of the
146 histogram bin.
[705]147
[1019]148 fmt is the line style as in plot().
149 """
[1739]150 from numpy import array
151 from numpy.ma import MaskedArray
[1019]152 if x is None:
153 if y is None: return
[1023]154 x = range(len(y))
[705]155
[1019]156 if len(x) != len(y):
157 return
158 l2 = 2*len(x)
[1023]159 x2 = range(l2)
[1086]160 y2 = range(12)
[1023]161 y2 = range(l2)
162 m2 = range(l2)
[1553]163 ymsk = None
164 ydat = None
165 if hasattr(y, "raw_mask"):
166 # numpy < 1.1
167 ymsk = y.raw_mask()
168 ydat = y.raw_data()
169 else:
170 ymsk = y.mask
171 ydat = y.data
[1023]172 for i in range(l2):
[1019]173 x2[i] = x[i/2]
[1086]174 m2[i] = ymsk[i/2]
[705]175
[1023]176 y2[0] = 0.0
[1019]177 for i in range(1,l2):
[1086]178 y2[i] = ydat[(i-1)/2]
[705]179
[1086]180 self.plot(x2, MaskedArray(y2,mask=m2,copy=0), fmt, add)
[705]181
182
183 def hold(self, hold=True):
[1019]184 """
185 Buffer graphics until subsequently released.
186 """
187 self.buffering = hold
[705]188
189
190 def legend(self, loc=None):
[1019]191 """
192 Add a legend to the plot.
[705]193
[1019]194 Any other value for loc else disables the legend:
195 1: upper right
196 2: upper left
197 3: lower left
198 4: lower right
199 5: right
200 6: center left
201 7: center right
202 8: lower center
203 9: upper center
204 10: center
[705]205
[1019]206 """
[1095]207 if isinstance(loc, int):
[1098]208 self.loc = None
209 if 0 <= loc <= 10: self.loc = loc
[1095]210 else:
211 self.loc = None
212 #self.show()
[705]213
214
[1086]215 def plot(self, x=None, y=None, fmt=None, add=None):
[1019]216 """
217 Plot the next line in the current frame using the current line
218 attributes. The ASAPlot graphics window will be mapped and raised.
[705]219
[1019]220 The argument list works a bit like the matlab plot() function.
221 """
222 if x is None:
223 if y is None: return
224 x = range(len(y))
[705]225
[1019]226 elif y is None:
227 y = x
228 x = range(len(y))
[1086]229 if fmt is None:
230 line = self.axes.plot(x, y)
[1019]231 else:
[1086]232 line = self.axes.plot(x, y, fmt)
[1980]233 # add a picker to lines for spectral value mode.
234 # matplotlib.axes.plot returns a list of line object (1 element)
235 line[0].set_picker(5.0)
[705]236
[1019]237 # Add to an existing line?
[1086]238 i = None
[1019]239 if add is None or len(self.lines) < add < 0:
240 # Don't add.
241 self.lines.append(line)
242 i = len(self.lines) - 1
243 else:
244 if add == 0: add = len(self.lines)
245 i = add - 1
246 self.lines[i].extend(line)
[705]247
[1019]248 # Set/reset attributes for the line.
249 gotcolour = False
250 for k, v in self.attributes.iteritems():
251 if k == 'color': gotcolour = True
252 for segment in self.lines[i]:
253 getattr(segment, "set_%s"%k)(v)
[705]254
[1019]255 if not gotcolour and len(self.colormap):
256 for segment in self.lines[i]:
257 getattr(segment, "set_color")(self.colormap[self.color])
[710]258 if len(self.colormap) == 1:
259 getattr(segment, "set_dashes")(self.linestyles[self.linestyle])
[1086]260
[1019]261 self.color += 1
262 if self.color >= len(self.colormap):
263 self.color = 0
[705]264
[710]265 if len(self.colormap) == 1:
266 self.linestyle += 1
[1019]267 if self.linestyle >= len(self.linestyles):
268 self.linestyle = 0
[710]269
[1019]270 self.show()
[705]271
272
273 def position(self):
[1019]274 """
275 Use the mouse to get a position from a graph.
276 """
[705]277
[1019]278 def position_disable(event):
279 self.register('button_press', None)
280 print '%.4f, %.4f' % (event.xdata, event.ydata)
[705]281
[1019]282 print 'Press any mouse button...'
283 self.register('button_press', position_disable)
[705]284
285
[1546]286 def get_region(self):
287 pos = []
[1568]288 print "Please select the bottom/left point"
[1546]289 pos.append(self.figure.ginput(n=1, show_clicks=False)[0])
[1568]290 print "Please select the top/right point"
[1546]291 pos.append(self.figure.ginput(n=1, show_clicks=False)[0])
292 return pos
293
294 def get_point(self):
[1568]295 print "Please select the point"
[1553]296 pt = self.figure.ginput(n=1, show_clicks=False)
297 if pt:
298 return pt[0]
299 else:
300 return None
[1546]301
[705]302 def region(self):
[1019]303 """
304 Use the mouse to get a rectangular region from a plot.
[705]305
[1019]306 The return value is [x0, y0, x1, y1] in world coordinates.
307 """
[705]308
[1019]309 def region_start(event):
[1819]310 self.rect = {'x': event.x, 'y': event.y,
[1019]311 'world': [event.xdata, event.ydata,
312 event.xdata, event.ydata]}
313 self.register('button_press', None)
314 self.register('motion_notify', region_draw)
315 self.register('button_release', region_disable)
[705]316
[1019]317 def region_draw(event):
[1819]318 self.figmgr.toolbar.draw_rubberband(event, event.x, event.y,
319 self.rect['x'], self.rect['y'])
[1826]320
[1019]321 def region_disable(event):
322 self.register('motion_notify', None)
323 self.register('button_release', None)
[705]324
[1019]325 self.rect['world'][2:4] = [event.xdata, event.ydata]
326 print '(%.2f, %.2f) (%.2f, %.2f)' % (self.rect['world'][0],
327 self.rect['world'][1], self.rect['world'][2],
328 self.rect['world'][3])
[1819]329 self.figmgr.toolbar.release(event)
[705]330
[1019]331 self.register('button_press', region_start)
[705]332
[1019]333 # This has to be modified to block and return the result (currently
334 # printed by region_disable) when that becomes possible in matplotlib.
[705]335
[1019]336 return [0.0, 0.0, 0.0, 0.0]
[705]337
338
339 def register(self, type=None, func=None):
[1019]340 """
341 Register, reregister, or deregister events of type 'button_press',
342 'button_release', or 'motion_notify'.
[705]343
[1019]344 The specified callback function should have the following signature:
[705]345
[1019]346 def func(event)
[705]347
[1019]348 where event is an MplEvent instance containing the following data:
[705]349
[1019]350 name # Event name.
351 canvas # FigureCanvas instance generating the event.
352 x = None # x position - pixels from left of canvas.
353 y = None # y position - pixels from bottom of canvas.
354 button = None # Button pressed: None, 1, 2, 3.
355 key = None # Key pressed: None, chr(range(255)), shift,
356 win, or control
357 inaxes = None # Axes instance if cursor within axes.
358 xdata = None # x world coordinate.
359 ydata = None # y world coordinate.
[705]360
[1019]361 For example:
[705]362
[1019]363 def mouse_move(event):
364 print event.xdata, event.ydata
[705]365
[1019]366 a = asaplot()
367 a.register('motion_notify', mouse_move)
[705]368
[1019]369 If func is None, the event is deregistered.
[705]370
[1019]371 Note that in TkAgg keyboard button presses don't generate an event.
372 """
[705]373
[1019]374 if not self.events.has_key(type): return
[705]375
[1019]376 if func is None:
377 if self.events[type] is not None:
378 # It's not clear that this does anything.
379 self.canvas.mpl_disconnect(self.events[type])
380 self.events[type] = None
[705]381
[1819]382 # It seems to be necessary to return events to the toolbar. <-- Not ture. 2010.Jul.14.kana.
383 #if type == 'motion_notify':
384 # self.canvas.mpl_connect(type + '_event',
385 # self.figmgr.toolbar.mouse_move)
386 #elif type == 'button_press':
387 # self.canvas.mpl_connect(type + '_event',
388 # self.figmgr.toolbar.press)
389 #elif type == 'button_release':
390 # self.canvas.mpl_connect(type + '_event',
391 # self.figmgr.toolbar.release)
[705]392
[1019]393 else:
394 self.events[type] = self.canvas.mpl_connect(type + '_event', func)
[705]395
396
397 def release(self):
[1019]398 """
399 Release buffered graphics.
400 """
401 self.buffering = False
402 self.show()
[705]403
404
[1095]405 def save(self, fname=None, orientation=None, dpi=None, papertype=None):
[1019]406 """
407 Save the plot to a file.
[705]408
[1019]409 fname is the name of the output file. The image format is determined
410 from the file suffix; 'png', 'ps', and 'eps' are recognized. If no
411 file name is specified 'yyyymmdd_hhmmss.png' is created in the current
412 directory.
413 """
[1095]414 from asap import rcParams
415 if papertype is None:
416 papertype = rcParams['plotter.papertype']
[1019]417 if fname is None:
418 from datetime import datetime
419 dstr = datetime.now().strftime('%Y%m%d_%H%M%S')
420 fname = 'asap'+dstr+'.png'
[705]421
[1870]422 d = ['png','.ps','eps', 'svg']
[705]423
[1019]424 from os.path import expandvars
425 fname = expandvars(fname)
[705]426
[1019]427 if fname[-3:].lower() in d:
428 try:
[705]429 if fname[-3:].lower() == ".ps":
[1020]430 from matplotlib import __version__ as mv
[1479]431 w = self.figure.get_figwidth()
432 h = self.figure.get_figheight()
[1019]433
[705]434 if orientation is None:
[1147]435 # oriented
[705]436 if w > h:
437 orientation = 'landscape'
438 else:
439 orientation = 'portrait'
[1095]440 from matplotlib.backends.backend_ps import papersize
441 pw,ph = papersize[papertype.lower()]
[1025]442 ds = None
443 if orientation == 'landscape':
[1095]444 ds = min(ph/w, pw/h)
[1025]445 else:
[1095]446 ds = min(pw/w, ph/h)
[1025]447 ow = ds * w
448 oh = ds * h
[1479]449 self.figure.set_size_inches((ow, oh))
[1095]450 self.figure.savefig(fname, orientation=orientation,
451 papertype=papertype.lower())
[1479]452 self.figure.set_size_inches((w, h))
[705]453 print 'Written file %s' % (fname)
[1019]454 else:
[705]455 if dpi is None:
456 dpi =150
[1025]457 self.figure.savefig(fname,dpi=dpi)
[705]458 print 'Written file %s' % (fname)
[1019]459 except IOError, msg:
[1819]460 #print 'Failed to save %s: Error msg was\n\n%s' % (fname, err)
[1861]461 asaplog.post()
[1819]462 asaplog.push('Failed to save %s: Error msg was\n\n%s' % (fname, str(msg)))
[1861]463 asaplog.post( 'ERROR' )
[1019]464 return
465 else:
[1819]466 #print "Invalid image type. Valid types are:"
467 #print "'ps', 'eps', 'png'"
468 asaplog.push( "Invalid image type. Valid types are:" )
[1870]469 asaplog.push( "'ps', 'eps', 'png', 'svg'" )
[1861]470 asaplog.post('WARN')
[705]471
472
473 def set_axes(self, what=None, *args, **kwargs):
[1019]474 """
475 Set attributes for the axes by calling the relevant Axes.set_*()
476 method. Colour translation is done as described in the doctext
477 for palette().
478 """
[705]479
[1019]480 if what is None: return
481 if what[-6:] == 'colour': what = what[:-6] + 'color'
[705]482
[1153]483 key = "colour"
484 if kwargs.has_key(key):
485 val = kwargs.pop(key)
486 kwargs["color"] = val
[705]487
[1153]488 getattr(self.axes, "set_%s"%what)(*args, **kwargs)
[705]489
[1153]490 self.show(hardrefresh=False)
[705]491
[1019]492
[705]493 def set_figure(self, what=None, *args, **kwargs):
[1019]494 """
495 Set attributes for the figure by calling the relevant Figure.set_*()
496 method. Colour translation is done as described in the doctext
497 for palette().
498 """
[705]499
[1019]500 if what is None: return
501 if what[-6:] == 'colour': what = what[:-6] + 'color'
502 #if what[-5:] == 'color' and len(args):
503 # args = (get_colour(args[0]),)
[705]504
[1019]505 newargs = {}
506 for k, v in kwargs.iteritems():
507 k = k.lower()
508 if k == 'colour': k = 'color'
509 newargs[k] = v
[705]510
[1019]511 getattr(self.figure, "set_%s"%what)(*args, **newargs)
[1153]512 self.show(hardrefresh=False)
[705]513
514
515 def set_limits(self, xlim=None, ylim=None):
[1019]516 """
517 Set x-, and y-limits for each subplot.
[705]518
[1019]519 xlim = [xmin, xmax] as in axes.set_xlim().
520 ylim = [ymin, ymax] as in axes.set_ylim().
521 """
522 for s in self.subplots:
523 self.axes = s['axes']
524 self.lines = s['lines']
[705]525 oldxlim = list(self.axes.get_xlim())
526 oldylim = list(self.axes.get_ylim())
527 if xlim is not None:
528 for i in range(len(xlim)):
529 if xlim[i] is not None:
530 oldxlim[i] = xlim[i]
[1019]531 if ylim is not None:
[705]532 for i in range(len(ylim)):
533 if ylim[i] is not None:
534 oldylim[i] = ylim[i]
535 self.axes.set_xlim(oldxlim)
536 self.axes.set_ylim(oldylim)
537 return
538
539
540 def set_line(self, number=None, **kwargs):
[1019]541 """
542 Set attributes for the specified line, or else the next line(s)
543 to be plotted.
[705]544
[1019]545 number is the 0-relative number of a line that has already been
546 plotted. If no such line exists, attributes are recorded and used
547 for the next line(s) to be plotted.
[705]548
[1019]549 Keyword arguments specify Line2D attributes, e.g. color='r'. Do
[705]550
[1019]551 import matplotlib
552 help(matplotlib.lines)
[705]553
[1019]554 The set_* methods of class Line2D define the attribute names and
555 values. For non-US usage, "colour" is recognized as synonymous with
556 "color".
[705]557
[1019]558 Set the value to None to delete an attribute.
[705]559
[1019]560 Colour translation is done as described in the doctext for palette().
561 """
[705]562
[1019]563 redraw = False
564 for k, v in kwargs.iteritems():
565 k = k.lower()
566 if k == 'colour': k = 'color'
[705]567
[1019]568 if 0 <= number < len(self.lines):
569 if self.lines[number] is not None:
570 for line in self.lines[number]:
571 getattr(line, "set_%s"%k)(v)
572 redraw = True
573 else:
574 if v is None:
575 del self.attributes[k]
576 else:
577 self.attributes[k] = v
[705]578
[1153]579 if redraw: self.show(hardrefresh=False)
[705]580
581
[1819]582 #def set_panels(self, rows=1, cols=0, n=-1, nplots=-1, ganged=True):
[2037]583 def set_panels(self, rows=1, cols=0, n=-1, nplots=-1, margin=None,ganged=True):
[1019]584 """
585 Set the panel layout.
[705]586
[1019]587 rows and cols, if cols != 0, specify the number of rows and columns in
588 a regular layout. (Indexing of these panels in matplotlib is row-
589 major, i.e. column varies fastest.)
[705]590
[1019]591 cols == 0 is interpreted as a retangular layout that accomodates
592 'rows' panels, e.g. rows == 6, cols == 0 is equivalent to
593 rows == 2, cols == 3.
[705]594
[1019]595 0 <= n < rows*cols is interpreted as the 0-relative panel number in
596 the configuration specified by rows and cols to be added to the
597 current figure as its next 0-relative panel number (i). This allows
598 non-regular panel layouts to be constructed via multiple calls. Any
599 other value of n clears the plot and produces a rectangular array of
600 empty panels. The number of these may be limited by nplots.
601 """
602 if n < 0 and len(self.subplots):
603 self.figure.clear()
604 self.set_title()
[705]605
[2037]606 if margin:
607 lef, bot, rig, top, wsp, hsp = margin
[1819]608 self.figure.subplots_adjust(
609 left=lef,bottom=bot,right=rig,top=top,wspace=wsp,hspace=hsp)
610 del lef,bot,rig,top,wsp,hsp
611
[1019]612 if rows < 1: rows = 1
[705]613
[1019]614 if cols <= 0:
615 i = int(sqrt(rows))
616 if i*i < rows: i += 1
617 cols = i
[705]618
[1019]619 if i*(i-1) >= rows: i -= 1
620 rows = i
[705]621
[1019]622 if 0 <= n < rows*cols:
623 i = len(self.subplots)
[1819]624
[1019]625 self.subplots.append({})
[705]626
[1019]627 self.subplots[i]['axes'] = self.figure.add_subplot(rows,
628 cols, n+1)
629 self.subplots[i]['lines'] = []
[705]630
[1019]631 if i == 0: self.subplot(0)
[705]632
[1019]633 self.rows = 0
634 self.cols = 0
[705]635
[1019]636 else:
637 self.subplots = []
[705]638
[1019]639 if nplots < 1 or rows*cols < nplots:
640 nplots = rows*cols
[1025]641 if ganged:
642 hsp,wsp = None,None
643 if rows > 1: hsp = 0.0001
644 if cols > 1: wsp = 0.0001
645 self.figure.subplots_adjust(wspace=wsp,hspace=hsp)
[1019]646 for i in range(nplots):
647 self.subplots.append({})
[1153]648 self.subplots[i]['lines'] = []
649 if not ganged:
650 self.subplots[i]['axes'] = self.figure.add_subplot(rows,
[1019]651 cols, i+1)
[1560]652 if asaprcParams['plotter.axesformatting'] != 'mpl':
[1513]653 self.subplots[i]['axes'].xaxis.set_major_formatter(OldScalarFormatter())
[1153]654 else:
655 if i == 0:
656 self.subplots[i]['axes'] = self.figure.add_subplot(rows,
657 cols, i+1)
[1560]658 if asaprcParams['plotter.axesformatting'] != 'mpl':
[1826]659
[1513]660 self.subplots[i]['axes'].xaxis.set_major_formatter(OldScalarFormatter())
[1153]661 else:
662 self.subplots[i]['axes'] = self.figure.add_subplot(rows,
663 cols, i+1,
664 sharex=self.subplots[0]['axes'],
665 sharey=self.subplots[0]['axes'])
[1259]666
[705]667 # Suppress tick labelling for interior subplots.
668 if i <= (rows-1)*cols - 1:
669 if i+cols < nplots:
670 # Suppress x-labels for frames width
671 # adjacent frames
[1153]672 for tick in self.subplots[i]['axes'].xaxis.majorTicks:
673 tick.label1On = False
[1926]674 #self.subplots[i]['axes'].xaxis.label.set_visible(False)
[705]675 if i%cols:
676 # Suppress y-labels for frames not in the left column.
677 for tick in self.subplots[i]['axes'].yaxis.majorTicks:
678 tick.label1On = False
[1926]679 #self.subplots[i]['axes'].yaxis.label.set_visible(False)
[1025]680 # disable the first tick of [1:ncol-1] of the last row
[1153]681 #if i+1 < nplots:
682 # self.subplots[i]['axes'].xaxis.majorTicks[0].label1On = False
[1926]683 # set axes label state for interior subplots.
684 if i%cols:
685 self.subplots[i]['axes'].yaxis.label.set_visible(False)
686 if (i <= (rows-1)*cols - 1) and (i+cols < nplots):
687 self.subplots[i]['axes'].xaxis.label.set_visible(False)
688 self.rows = rows
689 self.cols = cols
[1019]690 self.subplot(0)
[2037]691 del rows,cols,n,nplots,margin,ganged,i
[705]692
[1926]693
[1153]694 def tidy(self):
695 # this needs to be exceuted after the first "refresh"
696 nplots = len(self.subplots)
697 if nplots == 1: return
698 for i in xrange(nplots):
699 ax = self.subplots[i]['axes']
700 if i%self.cols:
701 ax.xaxis.majorTicks[0].label1On = False
702 else:
703 if i != 0:
704 ax.yaxis.majorTicks[-1].label1On = False
[1926]705 ## set axes label state for interior subplots.
706 #innerax=False
707 #if i%self.cols:
708 # ax.yaxis.label.set_visible(innerax)
709 #if (i <= (self.rows-1)*self.cols - 1) and (i+self.cols < nplots):
710 # ax.xaxis.label.set_visible(innerax)
711
[1153]712
[705]713 def set_title(self, title=None):
[1019]714 """
715 Set the title of the plot window. Use the previous title if title is
716 omitted.
717 """
718 if title is not None:
719 self.title = title
[705]720
[1019]721 self.figure.text(0.5, 0.95, self.title, horizontalalignment='center')
[705]722
723
[1153]724 def show(self, hardrefresh=True):
[1019]725 """
726 Show graphics dependent on the current buffering state.
727 """
[1153]728 if not hardrefresh: return
[1019]729 if not self.buffering:
730 if self.loc is not None:
[1086]731 for sp in self.subplots:
[1019]732 lines = []
733 labels = []
734 i = 0
[1086]735 for line in sp['lines']:
[1019]736 i += 1
737 if line is not None:
738 lines.append(line[0])
739 lbl = line[0].get_label()
740 if lbl == '':
741 lbl = str(i)
742 labels.append(lbl)
[705]743
[1019]744 if len(lines):
[1147]745 fp = FP(size=rcParams['legend.fontsize'])
[2068]746 #fsz = fp.get_size_in_points() - len(lines)
747 fsz = fp.get_size_in_points() - max(len(lines),self.cols)
748 #fp.set_size(max(fsz,6))
749 fp.set_size(max(fsz,8))
[1086]750 sp['axes'].legend(tuple(lines), tuple(labels),
[1147]751 self.loc, prop=fp)
[1946]752 #else:
753 # sp['axes'].legend((' '))
[705]754
[1086]755 from matplotlib.artist import setp
[1560]756 fpx = FP(size=rcParams['xtick.labelsize'])
757 xts = fpx.get_size_in_points()- (self.cols)/2
758 fpy = FP(size=rcParams['ytick.labelsize'])
759 yts = fpy.get_size_in_points() - (self.rows)/2
760 fpa = FP(size=rcParams['axes.labelsize'])
761 fpat = FP(size=rcParams['axes.titlesize'])
762 axsize = fpa.get_size_in_points()
[1819]763 tsize = fpat.get_size_in_points()-(self.cols)/2
[1086]764 for sp in self.subplots:
765 ax = sp['axes']
[1819]766 ax.title.set_size(tsize)
[1086]767 setp(ax.get_xticklabels(), fontsize=xts)
768 setp(ax.get_yticklabels(), fontsize=yts)
769 off = 0
[1819]770 if self.cols > 1: off = self.cols
[1560]771 ax.xaxis.label.set_size(axsize-off)
[1819]772 off = 0
773 if self.rows > 1: off = self.rows
[1560]774 ax.yaxis.label.set_size(axsize-off)
[705]775
776 def subplot(self, i=None, inc=None):
[1019]777 """
778 Set the subplot to the 0-relative panel number as defined by one or
779 more invokations of set_panels().
780 """
781 l = len(self.subplots)
782 if l:
783 if i is not None:
784 self.i = i
[705]785
[1019]786 if inc is not None:
787 self.i += inc
[705]788
[1019]789 self.i %= l
790 self.axes = self.subplots[self.i]['axes']
791 self.lines = self.subplots[self.i]['lines']
[705]792
793 def text(self, *args, **kwargs):
[1019]794 """
795 Add text to the figure.
796 """
797 self.figure.text(*args, **kwargs)
798 self.show()
[1147]799
800 def vline_with_label(self, x, y, label,
801 location='bottom', rotate=0.0, **kwargs):
802 """
803 Plot a vertical line with label.
804 It takes "world" values fo x and y.
805 """
806 ax = self.axes
807 # need this to suppress autoscaling during this function
808 self.axes.set_autoscale_on(False)
809 ymin = 0.0
810 ymax = 1.0
811 valign = 'center'
812 if location.lower() == 'top':
813 y = max(0.0, y)
814 elif location.lower() == 'bottom':
815 y = min(0.0, y)
816 lbloffset = 0.06
817 # a rough estimate for the bb of the text
818 if rotate > 0.0: lbloffset = 0.03*len(label)
819 peakoffset = 0.01
[1535]820 xy = None
821 xy0 = None
822 # matplotlib api change 0.98 is using transform now
823 if hasattr(ax.transData, "inverse_xy_tup"):
824 # get relative coords
825 xy0 = ax.transData.xy_tup((x,y))
826 xy = ax.transAxes.inverse_xy_tup(xy0)
827 else:
828 xy0 = ax.transData.transform((x,y))
829 # get relative coords
830 xy = ax.transAxes.inverted().transform(xy0)
[1147]831 if location.lower() == 'top':
832 ymax = 1.0-lbloffset
833 ymin = xy[1]+peakoffset
834 valign = 'bottom'
835 ylbl = ymax+0.01
836 elif location.lower() == 'bottom':
837 ymin = lbloffset
838 ymax = xy[1]-peakoffset
839 valign = 'top'
840 ylbl = ymin-0.01
[1425]841 trans = blended_transform_factory(ax.transData, ax.transAxes)
[1147]842 l = ax.axvline(x, ymin, ymax, color='black', **kwargs)
843 t = ax.text(x, ylbl ,label, verticalalignment=valign,
844 horizontalalignment='center',
845 rotation=rotate,transform = trans)
846 self.axes.set_autoscale_on(True)
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