source: branches/alma/python/asaplotbase.py@ 1754

Last change on this file since 1754 was 1723, checked in by Kana Sugimoto, 15 years ago

New Development: No

JIRA Issue: Yes (CAS-1801, CAS-2064)

Ready to Release: Yes

Interface Changes: Yes

What Interface Changed:
Three methods, print_headder(), set_panellayout() and _reset_panellayout()
are added to the class asapplotter.
A parameter layout (list) is added to set_layout() in asaplotbase class.

Test Programs: run sdplot with header & plotstyle=True + layout parameter set.

Put in Release Notes: Yes

Module(s): sdplot() task.

Description:

  1. asapplotter.print_header(plot=True, fontsize=9, logger=False, selstr=, extrastr=): prints scantable header on the plot and/or logger (see help doc for parameter details). Note that the header information will not overlayed to the plot by plotazel() and plotpointing().
  2. set_panellayout(layout=[],refresh=True): sets the layout of subplots. layout is a list of subplots layout in figure coordinate (0-1) in order of [left, bottom, right, top, horizontal space btw panels, vertical space btw panels]
  3. _reset_panellayout(): resets the layout of subplots to matplotlib rc value.
  4. a member variable 'asapplotter._panellayout' (list) is specified to store layout values.


  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 28.1 KB
RevLine 
[705]1"""
2ASAP plotting class based on matplotlib.
3"""
4
5import sys
6from re import match
7
8import matplotlib
9
10from matplotlib.figure import Figure, Text
[1147]11from matplotlib.font_manager import FontProperties as FP
[705]12from matplotlib.numerix import sqrt
13from matplotlib import rc, rcParams
[710]14from asap import rcParams as asaprcParams
[1259]15from matplotlib.ticker import OldScalarFormatter
[1019]16from matplotlib.ticker import NullLocator
[1147]17
[1603]18# API change in mpl >= 0.98
19try:
20 from matplotlib.transforms import blended_transform_factory
21except ImportError:
22 from matplotlib.transforms import blend_xy_sep_transform as blended_transform_factory
23
[1614]24from asap import asaplog
[1612]25
[1095]26if int(matplotlib.__version__.split(".")[1]) < 87:
[1612]27 #print "Warning: matplotlib version < 0.87. This might cause errors. Please upgrade."
[1614]28 asaplog.push( "matplotlib version < 0.87. This might cause errors. Please upgrade." )
29 print_log( 'WARN' )
[1019]30
[1259]31#class MyFormatter(OldScalarFormatter):
32# def __call__(self, x, pos=None):
33# last = len(self.locs)-2
34# if pos==0:
35# return ''
36# else: return OldScalarFormatter.__call__(self, x, pos)
[1019]37
[705]38class asaplotbase:
39 """
40 ASAP plotting base class based on matplotlib.
41 """
42
43 def __init__(self, rows=1, cols=0, title='', size=(8,6), buffering=False):
[1019]44 """
45 Create a new instance of the ASAPlot plotting class.
[705]46
[1019]47 If rows < 1 then a separate call to set_panels() is required to define
48 the panel layout; refer to the doctext for set_panels().
49 """
[705]50 self.is_dead = False
[1019]51 self.figure = Figure(figsize=size, facecolor='#ddddee')
[705]52 self.canvas = None
53
[1019]54 self.set_title(title)
55 self.subplots = []
56 if rows > 0:
57 self.set_panels(rows, cols)
[705]58
[710]59 # Set matplotlib default colour sequence.
60 self.colormap = "green red black cyan magenta orange blue purple yellow pink".split()
[1019]61
[710]62 c = asaprcParams['plotter.colours']
63 if isinstance(c,str) and len(c) > 0:
64 self.colormap = c.split()
65
66 self.lsalias = {"line": [1,0],
67 "dashdot": [4,2,1,2],
68 "dashed" : [4,2,4,2],
69 "dotted" : [1,2],
70 "dashdotdot": [4,2,1,2,1,2],
71 "dashdashdot": [4,2,4,2,1,2]
72 }
73
74 styles = "line dashed dotted dashdot".split()
75 c = asaprcParams['plotter.linestyles']
76 if isinstance(c,str) and len(c) > 0:
77 styles = c.split()
78 s = []
79 for ls in styles:
80 if self.lsalias.has_key(ls):
81 s.append(self.lsalias.get(ls))
82 else:
83 s.append('-')
84 self.linestyles = s
85
[705]86 self.color = 0;
[710]87 self.linestyle = 0;
[1019]88 self.attributes = {}
89 self.loc = 0
[705]90
[1019]91 self.buffering = buffering
[705]92
93 def clear(self):
[1019]94 """
[1147]95 Delete all lines from the plot. Line numbering will restart from 0.
[1019]96 """
[705]97
[1019]98 for i in range(len(self.lines)):
99 self.delete(i)
100 self.axes.clear()
101 self.color = 0
102 self.lines = []
[705]103
[710]104 def palette(self, color, colormap=None, linestyle=0, linestyles=None):
[705]105 if colormap:
[710]106 if isinstance(colormap,list):
107 self.colormap = colormap
108 elif isinstance(colormap,str):
109 self.colormap = colormap.split()
[705]110 if 0 <= color < len(self.colormap):
111 self.color = color
[710]112 if linestyles:
113 self.linestyles = []
114 if isinstance(linestyles,list):
115 styles = linestyles
116 elif isinstance(linestyles,str):
117 styles = linestyles.split()
118 for ls in styles:
119 if self.lsalias.has_key(ls):
120 self.linestyles.append(self.lsalias.get(ls))
121 else:
122 self.linestyles.append(self.lsalias.get('line'))
123 if 0 <= linestyle < len(self.linestyles):
124 self.linestyle = linestyle
[705]125
126 def delete(self, numbers=None):
[1019]127 """
128 Delete the 0-relative line number, default is to delete the last.
129 The remaining lines are NOT renumbered.
130 """
[705]131
[1019]132 if numbers is None: numbers = [len(self.lines)-1]
[705]133
[1019]134 if not hasattr(numbers, '__iter__'):
135 numbers = [numbers]
[705]136
[1019]137 for number in numbers:
138 if 0 <= number < len(self.lines):
139 if self.lines[number] is not None:
140 for line in self.lines[number]:
141 line.set_linestyle('None')
142 self.lines[number] = None
143 self.show()
[705]144
145 def get_line(self):
[1019]146 """
147 Get the current default line attributes.
148 """
149 return self.attributes
[705]150
151
[1086]152 def hist(self, x=None, y=None, fmt=None, add=None):
[1019]153 """
154 Plot a histogram. N.B. the x values refer to the start of the
155 histogram bin.
[705]156
[1019]157 fmt is the line style as in plot().
158 """
[1086]159 from matplotlib.numerix import array
160 from matplotlib.numerix.ma import MaskedArray
[1019]161 if x is None:
162 if y is None: return
[1023]163 x = range(len(y))
[705]164
[1019]165 if len(x) != len(y):
166 return
167 l2 = 2*len(x)
[1023]168 x2 = range(l2)
[1086]169 y2 = range(12)
[1023]170 y2 = range(l2)
171 m2 = range(l2)
[1603]172 ymsk = None
173 ydat = None
174 if hasattr(y, "raw_mask"):
175 # numpy < 1.1
176 ymsk = y.raw_mask()
177 ydat = y.raw_data()
178 else:
179 ymsk = y.mask
180 ydat = y.data
[1023]181 for i in range(l2):
[1019]182 x2[i] = x[i/2]
[1086]183 m2[i] = ymsk[i/2]
[705]184
[1023]185 y2[0] = 0.0
[1019]186 for i in range(1,l2):
[1086]187 y2[i] = ydat[(i-1)/2]
[705]188
[1086]189 self.plot(x2, MaskedArray(y2,mask=m2,copy=0), fmt, add)
[705]190
191
192 def hold(self, hold=True):
[1019]193 """
194 Buffer graphics until subsequently released.
195 """
196 self.buffering = hold
[705]197
198
199 def legend(self, loc=None):
[1019]200 """
201 Add a legend to the plot.
[705]202
[1019]203 Any other value for loc else disables the legend:
204 1: upper right
205 2: upper left
206 3: lower left
207 4: lower right
208 5: right
209 6: center left
210 7: center right
211 8: lower center
212 9: upper center
213 10: center
[705]214
[1019]215 """
[1095]216 if isinstance(loc, int):
[1098]217 self.loc = None
218 if 0 <= loc <= 10: self.loc = loc
[1095]219 else:
220 self.loc = None
221 #self.show()
[705]222
223
[1086]224 def plot(self, x=None, y=None, fmt=None, add=None):
[1019]225 """
226 Plot the next line in the current frame using the current line
227 attributes. The ASAPlot graphics window will be mapped and raised.
[705]228
[1019]229 The argument list works a bit like the matlab plot() function.
230 """
231 if x is None:
232 if y is None: return
233 x = range(len(y))
[705]234
[1019]235 elif y is None:
236 y = x
237 x = range(len(y))
[1086]238 if fmt is None:
239 line = self.axes.plot(x, y)
[1019]240 else:
[1086]241 line = self.axes.plot(x, y, fmt)
[705]242
[1019]243 # Add to an existing line?
[1086]244 i = None
[1019]245 if add is None or len(self.lines) < add < 0:
246 # Don't add.
247 self.lines.append(line)
248 i = len(self.lines) - 1
249 else:
250 if add == 0: add = len(self.lines)
251 i = add - 1
252 self.lines[i].extend(line)
[705]253
[1019]254 # Set/reset attributes for the line.
255 gotcolour = False
256 for k, v in self.attributes.iteritems():
257 if k == 'color': gotcolour = True
258 for segment in self.lines[i]:
259 getattr(segment, "set_%s"%k)(v)
[705]260
[1019]261 if not gotcolour and len(self.colormap):
262 for segment in self.lines[i]:
263 getattr(segment, "set_color")(self.colormap[self.color])
[710]264 if len(self.colormap) == 1:
265 getattr(segment, "set_dashes")(self.linestyles[self.linestyle])
[1086]266
[1019]267 self.color += 1
268 if self.color >= len(self.colormap):
269 self.color = 0
[705]270
[710]271 if len(self.colormap) == 1:
272 self.linestyle += 1
[1019]273 if self.linestyle >= len(self.linestyles):
274 self.linestyle = 0
[710]275
[1019]276 self.show()
[705]277
278
279 def position(self):
[1019]280 """
281 Use the mouse to get a position from a graph.
282 """
[705]283
[1019]284 def position_disable(event):
285 self.register('button_press', None)
286 print '%.4f, %.4f' % (event.xdata, event.ydata)
[705]287
[1019]288 print 'Press any mouse button...'
289 self.register('button_press', position_disable)
[705]290
291
292 def region(self):
[1019]293 """
294 Use the mouse to get a rectangular region from a plot.
[705]295
[1019]296 The return value is [x0, y0, x1, y1] in world coordinates.
297 """
[705]298
[1019]299 def region_start(event):
[1620]300 self.rect = {'x': event.x, 'y': event.y,
[1019]301 'world': [event.xdata, event.ydata,
302 event.xdata, event.ydata]}
303 self.register('button_press', None)
304 self.register('motion_notify', region_draw)
305 self.register('button_release', region_disable)
[705]306
[1019]307 def region_draw(event):
[1620]308 self.figmgr.toolbar.draw_rubberband(event, event.x, event.y,
309 self.rect['x'], self.rect['y'])
310
[1019]311 def region_disable(event):
312 self.register('motion_notify', None)
313 self.register('button_release', None)
[705]314
[1019]315 self.rect['world'][2:4] = [event.xdata, event.ydata]
316 print '(%.2f, %.2f) (%.2f, %.2f)' % (self.rect['world'][0],
317 self.rect['world'][1], self.rect['world'][2],
318 self.rect['world'][3])
[1620]319 self.figmgr.toolbar.release(event)
[705]320
[1019]321 self.register('button_press', region_start)
[705]322
[1019]323 # This has to be modified to block and return the result (currently
324 # printed by region_disable) when that becomes possible in matplotlib.
[705]325
[1019]326 return [0.0, 0.0, 0.0, 0.0]
[705]327
328
329 def register(self, type=None, func=None):
[1019]330 """
331 Register, reregister, or deregister events of type 'button_press',
332 'button_release', or 'motion_notify'.
[705]333
[1019]334 The specified callback function should have the following signature:
[705]335
[1019]336 def func(event)
[705]337
[1019]338 where event is an MplEvent instance containing the following data:
[705]339
[1019]340 name # Event name.
341 canvas # FigureCanvas instance generating the event.
342 x = None # x position - pixels from left of canvas.
343 y = None # y position - pixels from bottom of canvas.
344 button = None # Button pressed: None, 1, 2, 3.
345 key = None # Key pressed: None, chr(range(255)), shift,
346 win, or control
347 inaxes = None # Axes instance if cursor within axes.
348 xdata = None # x world coordinate.
349 ydata = None # y world coordinate.
[705]350
[1019]351 For example:
[705]352
[1019]353 def mouse_move(event):
354 print event.xdata, event.ydata
[705]355
[1019]356 a = asaplot()
357 a.register('motion_notify', mouse_move)
[705]358
[1019]359 If func is None, the event is deregistered.
[705]360
[1019]361 Note that in TkAgg keyboard button presses don't generate an event.
362 """
[705]363
[1019]364 if not self.events.has_key(type): return
[705]365
[1019]366 if func is None:
367 if self.events[type] is not None:
368 # It's not clear that this does anything.
369 self.canvas.mpl_disconnect(self.events[type])
370 self.events[type] = None
[705]371
[1019]372 # It seems to be necessary to return events to the toolbar.
373 if type == 'motion_notify':
374 self.canvas.mpl_connect(type + '_event',
375 self.figmgr.toolbar.mouse_move)
376 elif type == 'button_press':
377 self.canvas.mpl_connect(type + '_event',
378 self.figmgr.toolbar.press)
379 elif type == 'button_release':
380 self.canvas.mpl_connect(type + '_event',
381 self.figmgr.toolbar.release)
[705]382
[1019]383 else:
384 self.events[type] = self.canvas.mpl_connect(type + '_event', func)
[705]385
386
387 def release(self):
[1019]388 """
389 Release buffered graphics.
390 """
391 self.buffering = False
392 self.show()
[705]393
394
[1095]395 def save(self, fname=None, orientation=None, dpi=None, papertype=None):
[1019]396 """
397 Save the plot to a file.
[705]398
[1019]399 fname is the name of the output file. The image format is determined
400 from the file suffix; 'png', 'ps', and 'eps' are recognized. If no
401 file name is specified 'yyyymmdd_hhmmss.png' is created in the current
402 directory.
403 """
[1095]404 from asap import rcParams
405 if papertype is None:
406 papertype = rcParams['plotter.papertype']
[1019]407 if fname is None:
408 from datetime import datetime
409 dstr = datetime.now().strftime('%Y%m%d_%H%M%S')
410 fname = 'asap'+dstr+'.png'
[705]411
[1019]412 d = ['png','.ps','eps']
[705]413
[1019]414 from os.path import expandvars
415 fname = expandvars(fname)
[705]416
[1019]417 if fname[-3:].lower() in d:
418 try:
[705]419 if fname[-3:].lower() == ".ps":
[1020]420 from matplotlib import __version__ as mv
[1603]421 w = self.figure.get_figwidth()
422 h = self.figure.get_figheight()
[1019]423
[705]424 if orientation is None:
[1147]425 # oriented
[705]426 if w > h:
427 orientation = 'landscape'
428 else:
429 orientation = 'portrait'
[1095]430 from matplotlib.backends.backend_ps import papersize
431 pw,ph = papersize[papertype.lower()]
[1025]432 ds = None
433 if orientation == 'landscape':
[1095]434 ds = min(ph/w, pw/h)
[1025]435 else:
[1095]436 ds = min(pw/w, ph/h)
[1025]437 ow = ds * w
438 oh = ds * h
[1603]439 self.figure.set_size_inches((ow, oh))
[1095]440 self.figure.savefig(fname, orientation=orientation,
441 papertype=papertype.lower())
[1603]442 self.figure.set_size_inches((w, h))
[705]443 print 'Written file %s' % (fname)
[1019]444 else:
[705]445 if dpi is None:
446 dpi =150
[1025]447 self.figure.savefig(fname,dpi=dpi)
[705]448 print 'Written file %s' % (fname)
[1019]449 except IOError, msg:
[1612]450 #print 'Failed to save %s: Error msg was\n\n%s' % (fname, err)
[1614]451 print_log()
[1676]452 asaplog.push('Failed to save %s: Error msg was\n\n%s' % (fname, str(msg)))
[1614]453 print_log( 'ERROR' )
[1019]454 return
455 else:
[1612]456 #print "Invalid image type. Valid types are:"
457 #print "'ps', 'eps', 'png'"
[1614]458 asaplog.push( "Invalid image type. Valid types are:" )
459 asaplog.push( "'ps', 'eps', 'png'" )
460 print_log('WARN')
[705]461
462
463 def set_axes(self, what=None, *args, **kwargs):
[1019]464 """
465 Set attributes for the axes by calling the relevant Axes.set_*()
466 method. Colour translation is done as described in the doctext
467 for palette().
468 """
[705]469
[1019]470 if what is None: return
471 if what[-6:] == 'colour': what = what[:-6] + 'color'
[705]472
[1153]473 key = "colour"
474 if kwargs.has_key(key):
475 val = kwargs.pop(key)
476 kwargs["color"] = val
[705]477
[1153]478 getattr(self.axes, "set_%s"%what)(*args, **kwargs)
[705]479
[1153]480 self.show(hardrefresh=False)
[705]481
[1019]482
[705]483 def set_figure(self, what=None, *args, **kwargs):
[1019]484 """
485 Set attributes for the figure by calling the relevant Figure.set_*()
486 method. Colour translation is done as described in the doctext
487 for palette().
488 """
[705]489
[1019]490 if what is None: return
491 if what[-6:] == 'colour': what = what[:-6] + 'color'
492 #if what[-5:] == 'color' and len(args):
493 # args = (get_colour(args[0]),)
[705]494
[1019]495 newargs = {}
496 for k, v in kwargs.iteritems():
497 k = k.lower()
498 if k == 'colour': k = 'color'
499 newargs[k] = v
[705]500
[1019]501 getattr(self.figure, "set_%s"%what)(*args, **newargs)
[1153]502 self.show(hardrefresh=False)
[705]503
504
505 def set_limits(self, xlim=None, ylim=None):
[1019]506 """
507 Set x-, and y-limits for each subplot.
[705]508
[1019]509 xlim = [xmin, xmax] as in axes.set_xlim().
510 ylim = [ymin, ymax] as in axes.set_ylim().
511 """
512 for s in self.subplots:
513 self.axes = s['axes']
514 self.lines = s['lines']
[705]515 oldxlim = list(self.axes.get_xlim())
516 oldylim = list(self.axes.get_ylim())
517 if xlim is not None:
518 for i in range(len(xlim)):
519 if xlim[i] is not None:
520 oldxlim[i] = xlim[i]
[1019]521 if ylim is not None:
[705]522 for i in range(len(ylim)):
523 if ylim[i] is not None:
524 oldylim[i] = ylim[i]
525 self.axes.set_xlim(oldxlim)
526 self.axes.set_ylim(oldylim)
527 return
528
529
530 def set_line(self, number=None, **kwargs):
[1019]531 """
532 Set attributes for the specified line, or else the next line(s)
533 to be plotted.
[705]534
[1019]535 number is the 0-relative number of a line that has already been
536 plotted. If no such line exists, attributes are recorded and used
537 for the next line(s) to be plotted.
[705]538
[1019]539 Keyword arguments specify Line2D attributes, e.g. color='r'. Do
[705]540
[1019]541 import matplotlib
542 help(matplotlib.lines)
[705]543
[1019]544 The set_* methods of class Line2D define the attribute names and
545 values. For non-US usage, "colour" is recognized as synonymous with
546 "color".
[705]547
[1019]548 Set the value to None to delete an attribute.
[705]549
[1019]550 Colour translation is done as described in the doctext for palette().
551 """
[705]552
[1019]553 redraw = False
554 for k, v in kwargs.iteritems():
555 k = k.lower()
556 if k == 'colour': k = 'color'
[705]557
[1019]558 if 0 <= number < len(self.lines):
559 if self.lines[number] is not None:
560 for line in self.lines[number]:
561 getattr(line, "set_%s"%k)(v)
562 redraw = True
563 else:
564 if v is None:
565 del self.attributes[k]
566 else:
567 self.attributes[k] = v
[705]568
[1153]569 if redraw: self.show(hardrefresh=False)
[705]570
571
[1723]572 #def set_panels(self, rows=1, cols=0, n=-1, nplots=-1, ganged=True):
573 def set_panels(self, rows=1, cols=0, n=-1, nplots=-1, layout=None,ganged=True):
[1019]574 """
575 Set the panel layout.
[705]576
[1019]577 rows and cols, if cols != 0, specify the number of rows and columns in
578 a regular layout. (Indexing of these panels in matplotlib is row-
579 major, i.e. column varies fastest.)
[705]580
[1019]581 cols == 0 is interpreted as a retangular layout that accomodates
582 'rows' panels, e.g. rows == 6, cols == 0 is equivalent to
583 rows == 2, cols == 3.
[705]584
[1019]585 0 <= n < rows*cols is interpreted as the 0-relative panel number in
586 the configuration specified by rows and cols to be added to the
587 current figure as its next 0-relative panel number (i). This allows
588 non-regular panel layouts to be constructed via multiple calls. Any
589 other value of n clears the plot and produces a rectangular array of
590 empty panels. The number of these may be limited by nplots.
591 """
592 if n < 0 and len(self.subplots):
593 self.figure.clear()
594 self.set_title()
[705]595
[1723]596 if layout:
597 lef, bot, rig, top, wsp, hsp = layout
598 self.figure.subplots_adjust(
599 left=lef,bottom=bot,right=rig,top=top,wspace=wsp,hspace=hsp)
600 del lef,bot,rig,top,wsp,hsp
601
[1019]602 if rows < 1: rows = 1
[705]603
[1019]604 if cols <= 0:
605 i = int(sqrt(rows))
606 if i*i < rows: i += 1
607 cols = i
[705]608
[1019]609 if i*(i-1) >= rows: i -= 1
610 rows = i
[705]611
[1019]612 if 0 <= n < rows*cols:
613 i = len(self.subplots)
[1723]614
[1019]615 self.subplots.append({})
[705]616
[1019]617 self.subplots[i]['axes'] = self.figure.add_subplot(rows,
618 cols, n+1)
619 self.subplots[i]['lines'] = []
[705]620
[1019]621 if i == 0: self.subplot(0)
[705]622
[1019]623 self.rows = 0
624 self.cols = 0
[705]625
[1019]626 else:
627 self.subplots = []
[705]628
[1019]629 if nplots < 1 or rows*cols < nplots:
630 nplots = rows*cols
[1025]631 if ganged:
632 hsp,wsp = None,None
633 if rows > 1: hsp = 0.0001
634 if cols > 1: wsp = 0.0001
635 self.figure.subplots_adjust(wspace=wsp,hspace=hsp)
[1019]636 for i in range(nplots):
637 self.subplots.append({})
[1153]638 self.subplots[i]['lines'] = []
639 if not ganged:
640 self.subplots[i]['axes'] = self.figure.add_subplot(rows,
[1019]641 cols, i+1)
[1603]642 if asaprcParams['plotter.xaxisformatting'] == 'mpl':
643 self.subplots[i]['axes'].xaxis.set_major_formatter(OldScalarFormatter())
[1153]644 else:
645 if i == 0:
646 self.subplots[i]['axes'] = self.figure.add_subplot(rows,
647 cols, i+1)
[1603]648 if asaprcParams['plotter.xaxisformatting'] != 'mpl':
649
650 self.subplots[i]['axes'].xaxis.set_major_formatter(OldScalarFormatter())
[1153]651 else:
652 self.subplots[i]['axes'] = self.figure.add_subplot(rows,
653 cols, i+1,
654 sharex=self.subplots[0]['axes'],
655 sharey=self.subplots[0]['axes'])
[1259]656
[705]657 # Suppress tick labelling for interior subplots.
658 if i <= (rows-1)*cols - 1:
659 if i+cols < nplots:
660 # Suppress x-labels for frames width
661 # adjacent frames
[1153]662 for tick in self.subplots[i]['axes'].xaxis.majorTicks:
663 tick.label1On = False
[1019]664 self.subplots[i]['axes'].xaxis.label.set_visible(False)
[705]665 if i%cols:
666 # Suppress y-labels for frames not in the left column.
667 for tick in self.subplots[i]['axes'].yaxis.majorTicks:
668 tick.label1On = False
669 self.subplots[i]['axes'].yaxis.label.set_visible(False)
[1025]670 # disable the first tick of [1:ncol-1] of the last row
[1153]671 #if i+1 < nplots:
672 # self.subplots[i]['axes'].xaxis.majorTicks[0].label1On = False
[1019]673 self.rows = rows
674 self.cols = cols
675 self.subplot(0)
[1723]676 del rows,cols,n,nplots,layout,ganged,i
[705]677
[1153]678 def tidy(self):
679 # this needs to be exceuted after the first "refresh"
680 nplots = len(self.subplots)
681 if nplots == 1: return
682 for i in xrange(nplots):
683 ax = self.subplots[i]['axes']
684 if i%self.cols:
685 ax.xaxis.majorTicks[0].label1On = False
686 else:
687 if i != 0:
688 ax.yaxis.majorTicks[-1].label1On = False
689
690
[705]691 def set_title(self, title=None):
[1019]692 """
693 Set the title of the plot window. Use the previous title if title is
694 omitted.
695 """
696 if title is not None:
697 self.title = title
[705]698
[1019]699 self.figure.text(0.5, 0.95, self.title, horizontalalignment='center')
[705]700
701
[1153]702 def show(self, hardrefresh=True):
[1019]703 """
704 Show graphics dependent on the current buffering state.
705 """
[1153]706 if not hardrefresh: return
[1019]707 if not self.buffering:
708 if self.loc is not None:
[1086]709 for sp in self.subplots:
[1019]710 lines = []
711 labels = []
712 i = 0
[1086]713 for line in sp['lines']:
[1019]714 i += 1
715 if line is not None:
716 lines.append(line[0])
717 lbl = line[0].get_label()
718 if lbl == '':
719 lbl = str(i)
720 labels.append(lbl)
[705]721
[1019]722 if len(lines):
[1147]723 fp = FP(size=rcParams['legend.fontsize'])
724 fsz = fp.get_size_in_points() - len(lines)
725 fp.set_size(max(fsz,6))
[1086]726 sp['axes'].legend(tuple(lines), tuple(labels),
[1147]727 self.loc, prop=fp)
[1019]728 else:
[1086]729 sp['axes'].legend((' '))
[705]730
[1086]731 from matplotlib.artist import setp
[1147]732 fp = FP(size=rcParams['xtick.labelsize'])
733 xts = fp.get_size_in_points()- (self.cols)/2
734 fp = FP(size=rcParams['ytick.labelsize'])
735 yts = fp.get_size_in_points() - (self.rows)/2
[1086]736 for sp in self.subplots:
737 ax = sp['axes']
[1717]738 #s = ax.title.get_size()
[1714]739 #tsize = s-(self.cols+self.rows)
[1717]740 s=FP(size=rcParams['axes.titlesize'])
741 tsize = s.get_size_in_points()-(self.cols)/2
[1603]742 ax.title.set_size(tsize)
[1147]743 fp = FP(size=rcParams['axes.labelsize'])
[1086]744 setp(ax.get_xticklabels(), fontsize=xts)
745 setp(ax.get_yticklabels(), fontsize=yts)
[1147]746 origx = fp.get_size_in_points()
747 origy = origx
[1086]748 off = 0
749 if self.cols > 1: off = self.cols
750 xfsize = origx-off
751 ax.xaxis.label.set_size(xfsize)
752 off = 0
753 if self.rows > 1: off = self.rows
754 yfsize = origy-off
755 ax.yaxis.label.set_size(yfsize)
[705]756
757 def subplot(self, i=None, inc=None):
[1019]758 """
759 Set the subplot to the 0-relative panel number as defined by one or
760 more invokations of set_panels().
761 """
762 l = len(self.subplots)
763 if l:
764 if i is not None:
765 self.i = i
[705]766
[1019]767 if inc is not None:
768 self.i += inc
[705]769
[1019]770 self.i %= l
771 self.axes = self.subplots[self.i]['axes']
772 self.lines = self.subplots[self.i]['lines']
[705]773
774 def text(self, *args, **kwargs):
[1019]775 """
776 Add text to the figure.
777 """
778 self.figure.text(*args, **kwargs)
779 self.show()
[1147]780
781 def vline_with_label(self, x, y, label,
782 location='bottom', rotate=0.0, **kwargs):
783 """
784 Plot a vertical line with label.
785 It takes "world" values fo x and y.
786 """
787 ax = self.axes
788 # need this to suppress autoscaling during this function
789 self.axes.set_autoscale_on(False)
790 ymin = 0.0
791 ymax = 1.0
792 valign = 'center'
793 if location.lower() == 'top':
794 y = max(0.0, y)
795 elif location.lower() == 'bottom':
796 y = min(0.0, y)
797 lbloffset = 0.06
798 # a rough estimate for the bb of the text
799 if rotate > 0.0: lbloffset = 0.03*len(label)
800 peakoffset = 0.01
[1603]801 xy = None
802 xy0 = None
803 # matplotlib api change 0.98 is using transform now
804 if hasattr(ax.transData, "inverse_xy_tup"):
805 # get relative coords
806 xy0 = ax.transData.xy_tup((x,y))
807 xy = ax.transAxes.inverse_xy_tup(xy0)
808 else:
809 xy0 = ax.transData.transform((x,y))
810 # get relative coords
811 xy = ax.transAxes.inverted().transform(xy0)
[1147]812 if location.lower() == 'top':
813 ymax = 1.0-lbloffset
814 ymin = xy[1]+peakoffset
815 valign = 'bottom'
816 ylbl = ymax+0.01
817 elif location.lower() == 'bottom':
818 ymin = lbloffset
819 ymax = xy[1]-peakoffset
820 valign = 'top'
821 ylbl = ymin-0.01
[1603]822 trans = blended_transform_factory(ax.transData, ax.transAxes)
[1147]823 l = ax.axvline(x, ymin, ymax, color='black', **kwargs)
824 t = ax.text(x, ylbl ,label, verticalalignment=valign,
825 horizontalalignment='center',
826 rotation=rotate,transform = trans)
827 self.axes.set_autoscale_on(True)
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