source: trunk/python/plotter2.py@ 3148

Last change on this file since 3148 was 3017, checked in by WataruKawasaki, 10 years ago

New Development: No

JIRA Issue: Yes CAS-6168

Ready for Test: Yes

Interface Changes: No

What Interface Changed:

Test Programs:

Put in Release Notes: No

Module(s): sd

Description: add help text in plotter2.set_vs() that the actual image height might not be always the same as the value expected from (width * aspect) and there might be 1 pixel difference especially when unit is set 'pixel'; actually height is calculated inside cpgpap() so uncontrollable directly.


File size: 35.0 KB
Line 
1from os.path import expanduser, expandvars
2from asap._asap import Plotter2
3
4class plotter2:
5 def __init__(self):
6 self._plotter = Plotter2()
7 self.current_vs_unit = 'cm'
8
9 def set_output(self, filename=None, dev=None):
10 """\
11 set output filename and/or output device.
12 when only filename given, filename is splitted with '.' then
13 the last part (filename extension) will be used as output device.
14 Parameters:
15 filename: output file name (default is '')
16 device: output device. default is 'xwindow'. 'png', 'ps'
17 and 'vps'(PostScript in portrait shape) are
18 available also.
19
20 Example:
21 set_output() -- display in X Window (default)
22 set_output('foo.png') -- generate foo.png in PNG format.
23 set_output('bar.ps', 'vps') -- generate bar.ps in portrait shape.
24 """
25 if filename is None:
26 filename = ''
27 dev = 'xwindow'
28 else:
29 filename = filename.strip()
30 if filename == '':
31 dev = 'xwindow'
32 else:
33 if (dev is None) or (dev.strip() == ''):
34 fnamelem = filename.lower().split('.')
35 dev = fnamelem[len(fnamelem)-1].strip()
36 if dev == 'ps': dev = 'cps'
37
38 self._plotter.set_filename(expanduser(expandvars(filename)))
39 self._plotter.set_device(dev.strip())
40 self.device = dev.strip()
41
42 def get_vs(self):
43 """\
44 returns size and shape information on 'view surface' (a word used
45 in PGPLOT, meaning the entire region of plotting) as a dictionary.
46 """
47 width = self._plotter.get_viewsurface_width()
48 unit = self.current_vs_unit
49 if unit == 'cm':
50 width = width * 2.54 # inch to centimeter
51 elif unit == 'mm':
52 width = width * 25.4 # inch to millimeter
53 elif unit == 'pixel':
54 width = width * 85.0 + 1.0 # inch to pixel (plus correction for 1pixel)
55
56 aspect = self._plotter.get_viewsurface_aspect()
57
58 return {'width': width, 'unit': unit, 'aspect': aspect}
59
60 def set_vs(self, width=None, unit=None, aspect=None):
61 """\
62 set size and shape of 'view surface', namely, the entire region
63 of plotting including graphic window or output file. ('view
64 surface' is a word used in PGPLOT)
65 Parameters:
66 width: width of graphic window or output file.
67 unit: unit of width. default value is 'cm'. 'mm', 'inch'
68 and 'pixel' are also available.
69 aspect: aspect ratio (= height / width).
70
71 Example:
72 set_vs(width=10, unit='cm', aspect=1.0) -- set the output
73 window/file as a square 10cm on a side.
74 set_vs(width=400, unit='pixel', aspect=0.75) -- set the output
75 window/file as a rectangle with 400 pixels in width and
76 300 pixels in height, though the actual height might not
77 be the same as specified (see below).
78
79 Note:
80 setting unit to 'cm', 'mm' or 'inch' results in output with the
81 correct size when output device is X Window or PostScript, but
82 not for the other cases (png). also, setting unit to 'pixel'
83 works correctly only when output device is 'png': this arises
84 from PGPLOT's assumption on device resolution of 85 pixel/inch,
85 though actual resolution will vary depending on device type.
86 thus, for output with a correct size specified, users are
87 recommended to use 'pixel' for 'png' output, and other units
88 for 'xwindow' (the default) or PostScript output.
89 It should also be noted in case unit of 'pixel' that the actual
90 height might not be always the same as you expect by (width *
91 aspect); one pixel difference in the actual height might occur.
92 """
93 if width is None:
94 width = self._plotter.get_viewsurface_width() # inch
95 if self.current_vs_unit == 'cm':
96 width = width * 2.54 # inch to centimeter
97 elif self.current_vs_unit == 'mm':
98 width = width * 25.4 # inch to millimeter
99 elif self.current_vs_unit == 'pixel':
100 width = width * 85.0 + 1.0 # inch to pixel (plus correction for 1pixel)
101 if unit is None: unit = self.current_vs_unit
102 if aspect is None: aspect = self._plotter.get_viewsurface_aspect()
103
104 if not ((isinstance(width, int) or isinstance(width, float)) and (width > 0)):
105 raise ValueError("Width must be positive float or integer.")
106 if not (isinstance(aspect, int) or isinstance(aspect, float)):
107 raise ValueError("Aspect must be positive float or integer.")
108
109 unit = unit.lower().strip()
110 if unit == 'cm':
111 width = width / 2.54 # centimeter to inch
112 elif unit == 'mm':
113 width = width / 25.4 # millimeter to inch
114 elif unit == 'pixel':
115 width = (width - 1.0) / 85.0 # pixel to inch (plus correction for 1pixel)
116 elif unit != 'inch':
117 raise ValueError("Unit must be 'cm', 'mm', 'inch' or 'pixel'.")
118 self.current_vs_unit = unit
119
120 self._plotter.set_viewsurface(width, aspect)
121
122 def set_vp(self, xmin, xmax, ymin, ymax, id=None):
123 """\
124 change the position/shape of viewport in which data are to be plotted.
125 positions should be given in window coordinate (0<={x,y}<=1), but,
126 unlike the usual definition of window coordinates, with the origin at
127 the bottom left corner.
128 when you create plotter2 instance, it already has a single viewport
129 with xmin=ymin=0.1 and xmax=ymax=0.9 (id=0). in case you don't want to
130 change the size/position of the viewport, you never need to run this
131 function.
132 if you want to have two or more viewports, run set_vp() first to
133 move/resize the first viewport, then you will be able to add a new
134 viewport by executing set_vp without id (the id of the new viewport
135 is returned in this case). the location and shape of any viewport
136 can be modified later by specifying its viewport id.
137
138 Parameters:
139 xmin: the x position of the left side.
140 xmax: the x position of the rightt side.
141 ymin: the y position of the top of viewport.
142 ymax: the y position of the bottom of viewport.
143 id: viewport id
144 """
145 if id is None:
146 if self._plotter.get_hasdefaultvp():
147 self._plotter.set_viewport(xmin, xmax, ymin, ymax, 0)
148 else:
149 return self._plotter.add_viewport(xmin, xmax, ymin, ymax)
150 else:
151 self._plotter.set_viewport(xmin, xmax, ymin, ymax, id)
152
153 def show_vp(self, vpid=None):
154 """\
155 show viewport specified with its id.
156
157 Parameter:
158 vpid: viewport id. when unset, operation is applied to
159 the viewport with the largest id.
160 """
161 if vpid is None: vpid = -1
162 self._plotter.show_viewport(vpid)
163
164 def hide_vp(self, vpid=None):
165 """\
166 hide viewport specified with its id.
167
168 Parameter:
169 vpid: viewport id. when unset, operation is applied to
170 the viewport with the largest id.
171 """
172 if vpid is None: vpid = -1
173 self._plotter.hide_viewport(vpid)
174
175 def set_range(self, xmin, xmax, ymin, ymax, vpid=None):
176 """\
177 set 2D range to be displayed in the specified viewport.
178 by default, the display range is set automatically.
179
180 Parameter:
181 xmin: the minimum of x range.
182 xmax: the maximum of x range.
183 ymin: the minimum of y range.
184 ymax: the maximum of y range.
185 vpid: viewport id. when unset, operation is applied to
186 the viewport with the largest id.
187 """
188 if vpid is None: vpid = -1
189 self._plotter.set_range(xmin, xmax, ymin, ymax, vpid)
190
191 def set_xrange(self, xmin, xmax, vpid=None):
192 """\
193 set x range to be displayed in the specified viewport.
194 by default, the display range is set automatically.
195
196 Parameter:
197 xmin: the minimum of x range.
198 xmax: the maximum of x range.
199 vpid: viewport id. when unset, operation is applied to
200 the viewport with the largest id.
201 """
202 if vpid is None: vpid = -1
203 self._plotter.set_range_x(xmin, xmax, vpid)
204
205 def set_yrange(self, ymin, ymax, vpid=None):
206 """\
207 set y range to be displayed in the specified viewport.
208 by default, the display range is set automatically.
209
210 Parameter:
211 ymin: the minimum of y range.
212 ymax: the maximum of y range.
213 vpid: viewport id. when unset, operation is applied to
214 the viewport with the largest id.
215 """
216 if vpid is None: vpid = -1
217 self._plotter.set_range_y(ymin, ymax, vpid)
218
219 def get_xrange(self, vpid=None):
220 """\
221 returns x range of displayed region of the specified viewport
222 as a list of [xmin, xmax].
223
224 Parameter:
225 vpid: viewport id. when unset, operation is applied to
226 the viewport with the largest id.
227 """
228 if vpid is None: vpid = -1
229 return self._plotter.get_range_x(vpid)
230
231 def get_yrange(self, vpid=None):
232 """\
233 returns y range of displayed region in the specified viewport
234 as a list of [ymin, ymax].
235
236 Parameter:
237 vpid: viewport id. when unset, operation is applied to
238 the viewport with the largest id.
239 """
240 if vpid is None: vpid = -1
241 return self._plotter.get_range_y(vpid)
242
243 def set_autorange(self, vpid=None):
244 """\
245 set the 2-Dimensional range of displayed area of the specified
246 viewport to automatically enclose the given data.
247 the x range will be from the minimum up to the maximum value
248 of the given x values, whereas y range has margins of 10% of
249 the y value range both at the top and the bottom sides.
250
251 Parameter:
252 vpid: viewport id. when unset, operation is applied to
253 the viewport with the largest id.
254 """
255 if vpid is None: vpid = -1
256 self._plotter.set_autorange(vpid)
257
258 def set_xautorange(self, vpid=None):
259 """\
260 set x range of displayed area of the specified viewport to
261 automatically enclose the given data with no margins.
262
263 Parameter:
264 vpid: viewport id. when unset, operation is applied to
265 the viewport with the largest id.
266 """
267 if vpid is None: vpid = -1
268 self._plotter.set_autorange_x(vpid)
269
270 def set_yautorange(self, vpid=None):
271 """\
272 set y range of displayed area of the specified viewport to
273 automatically enclose the given data with margins of 10% of
274 the y value range both at the top and the bottom sides.
275
276 Parameter:
277 vpid: viewport id. when unset, operation is applied to
278 the viewport with the largest id.
279 """
280 if vpid is None: vpid = -1
281 self._plotter.set_autorange_y(vpid)
282
283 def set_fontsize(self, size, vpid=None):
284 """\
285 set the font size that is used for number labels etc.
286
287 Parameter:
288 size: font size (default is 1)
289 vpid: viewport id. when unset, operation is applied to
290 the viewport with the largest id.
291 """
292 if vpid is None: vpid = -1
293 self._plotter.set_fontsize(size, vpid)
294
295 def set_xtics(self, interval_major, num_minor=None, vpid=None):
296 """\
297 set the interval of ticks along x axis.
298
299 Parameter:
300 interval_major: interval of major ticks
301 num_minor: major tick interval / minor tick interval.
302 default is 5.
303 vpid: viewport id. when unset, operation is
304 applied to the viewport with the largest id.
305 """
306 if vpid is None: vpid = -1
307 if num_minor is None: num_minor = 5
308 self._plotter.set_tics_x(interval_major, num_minor, vpid)
309
310 def set_ytics(self, interval_major, num_minor=None, vpid=None):
311 """\
312 set the interval of ticks along y axis.
313
314 Parameter:
315 interval_major: interval of major ticks
316 num_minor: major tick interval / minor tick interval.
317 default is 5.
318 vpid: viewport id. when unset, operation is
319 applied to the viewport with the largest id.
320 """
321 if vpid is None: vpid = -1
322 if num_minor is None: num_minor = 5
323 self._plotter.set_tics_y(interval_major, num_minor, vpid)
324
325 def set_xautotics(self, vpid=None):
326 """\
327 set the interval of ticks and number labels along x axis
328 given automatically.
329
330 Parameter:
331 vpid: viewport id. when unset, operation is applied to
332 the viewport with the largest id.
333 """
334 if vpid is None: vpid = -1
335 self._plotter.set_autotics_x(vpid)
336
337 def set_yautotics(self, vpid=None):
338 """\
339 set the interval of ticks and number labels along y axis
340 given automatically.
341
342 Parameter:
343 vpid: viewport id. when unset, operation is applied to
344 the viewport with the largest id.
345 """
346 if vpid is None: vpid = -1
347 self._plotter.set_autotics_y(vpid)
348
349 def set_xnuminterval(self, interval, vpid=None):
350 """\
351 set the interval of number labels along x axis.
352
353 Parameter:
354 interval: interval of number labels
355 vpid: viewport id. when unset, operation is
356 applied to the viewport with the largest id.
357 """
358 if vpid is None: vpid = -1
359 self._plotter.set_ninterval_x(interval, vpid)
360
361 def set_ynuminterval(self, interval, vpid=None):
362 """\
363 set the interval of number labels along y axis.
364
365 Parameter:
366 interval: interval of number labels
367 vpid: viewport id. when unset, operation is
368 applied to the viewport with the largest id.
369 """
370 if vpid is None: vpid = -1
371 self._plotter.set_ninterval_y(interval, vpid)
372
373 def set_xnumlocation(self, location=None, vpid=None):
374 """\
375 set the location of number labels along x axis.
376
377 Parameters:
378 location: 'l' (left side) or 'r' (right side). default is 'l'.
379 vpid: viewport id. when unset, operation is
380 applied to the viewport with the largest id.
381 """
382 if vpid is None: vpid = -1
383 if location is None: location = "l"
384 self._plotter.set_nlocation_x(location.lower(), vpid)
385
386 def set_ynumlocation(self, location=None, vpid=None):
387 """\
388 set the location of number labels along y axis.
389
390 Parameters:
391 location: 'b' (bottom) or 't' (top). default is 'b'.
392 vpid: viewport id. when unset, operation is
393 applied to the viewport with the largest id.
394 """
395 if vpid is None: vpid = -1
396 if location is None: location = "b"
397 self._plotter.set_nlocation_y(location.lower(), vpid)
398
399 def set_data(self, xdata, ydata, vpid=None, dataid=None):
400 """\
401 append or change dataset to be plotted.
402
403 Parameters:
404 xdata: a list of x positions of the input data.
405 ydata: a list of y positions of the input data.
406 vpid: viewport id. when not given, the last viewport
407 will be the target.
408 dataid: dataset id. a integer starting from 0. when dataid
409 is given, the corresponding dataset of the specified
410 viewport is replaced by the given xdata and ydata.
411 when not given, a new dataset of xdata and ydata is
412 appended.
413 """
414 if dataid is None:
415 if vpid is None: vpid = -1
416 dataid = -1
417
418 self._plotter.set_data(xdata, ydata, vpid, dataid)
419
420 def set_line(self, color, width=None, style=None, vpid=None, dataid=None):
421 """\
422 change line attributes.
423
424 Parameters:
425 color: line color specified by color name. available colors
426 can be listed via list_colornames().
427 width: line width. default is 1.
428 style: line style. available styles can be listed via
429 list_linestyles().
430 vpid: viewport id. when not given, the last viewport
431 will be the target of operation.
432 dataid: dataset id. when not given, the last dataset for the
433 specified viewport is the target.
434 """
435 if width is None: width = 1
436 if style is None: style = "solid"
437 if vpid is None: vpid = -1
438 if dataid is None: dataid = -1
439
440 coloridx = self.get_colorindex(color)
441 styleidx = self.get_linestyleindex(style)
442 self._plotter.set_line(coloridx, width, styleidx, vpid, dataid)
443
444 def show_line(self, vpid=None, dataid=None):
445 """\
446 show line connecting the specified dataset.
447
448 Parameters:
449 vpid: viewport id. when not given, the last viewport
450 will be the target.
451 dataid: dataset id. when not given, the last dataset used.
452 """
453 if dataid is None:
454 if vpid is None: vpid = -1
455 dataid = -1
456
457 self._plotter.show_line(vpid, dataid)
458
459 def hide_line(self, vpid=None, dataid=None):
460 """\
461 hide line connecting the specified dataset.
462
463 Parameters:
464 vpid: viewport id. when not given, the last viewport
465 will be the target.
466 dataid: dataset id. when not given, the last dataset used.
467 """
468 if dataid is None:
469 if vpid is None: vpid = -1
470 dataid = -1
471
472 self._plotter.hide_line(vpid, dataid)
473
474 def set_point(self, type, size, color, vpid=None, dataid=None):
475 """\
476 change marker attributes for the specified dataset.
477
478 Parameters:
479 type: type of marker symbol. see PGPLOT manual for detail.
480 size: marker size.
481 color: color of marker. see output of list_colornames().
482 vpid: viewport id. when not given, the last viewport
483 will be the target.
484 dataid: dataset id. when not given, the last dataset used.
485 """
486 if dataid is None:
487 if vpid is None: vpid = -1
488 dataid = -1
489 coloridx = self.get_colorindex(color)
490 self._plotter.set_point(type, size, coloridx, vpid, dataid)
491
492 def show_point(self, vpid=None, dataid=None):
493 """\
494 show markers for the specified dataset.
495
496 Parameters:
497 vpid: viewport id. when not given, the last viewport
498 will be the target.
499 dataid: dataset id. when not given, the last dataset used.
500 """
501 if dataid is None:
502 if vpid is None: vpid = -1
503 dataid = -1
504
505 self._plotter.show_point(vpid, dataid)
506
507 def hide_point(self, vpid=None, dataid=None):
508 """\
509 hide markers for the specified dataset.
510
511 Parameters:
512 vpid: viewport id. when not given, the last viewport
513 will be the target.
514 dataid: dataset id. when not given, the last dataset used.
515 """
516 if dataid is None:
517 if vpid is None: vpid = -1
518 dataid = -1
519
520 self._plotter.hide_point(vpid, dataid)
521
522 def set_xmask(self, xmin, xmax, color=None, fstyle=None, width=None, hsep=None, vpid=None):
523 """\
524 add a rectangle which spans the full y range.
525
526 Parameters:
527 xmin: the smaller end of mask region
528 xmax: the larger end of mask region
529 color: color of mask region. see output of list_colornames().
530 default is "lightgray".
531 fstyle: fill style. see output of list_fillstyles().
532 default is "solid".
533 width: width of outline of mask region. default is 1.
534 hsep: spacing of hatched lines. default is 1.0
535 vpid: viewport id. when not given, the last viewport
536 will be the target.
537 """
538 if color is None: color = "lightgray"
539 if fstyle is None: fstyle = "solid"
540 if width is None: width = 1
541 if hsep is None: hsep = 1.0
542 if vpid is None: vpid = -1
543
544 coloridx = self.get_colorindex(color)
545 fstyleidx = self.get_fillstyleindex(fstyle)
546
547 self._plotter.set_mask_x(xmin, xmax, coloridx, fstyleidx, width, hsep, vpid)
548
549 def set_arrow(self, xtail, xhead, ytail, yhead, color=None, width=None, linestyle=None, headsize=None, headfs=None, headangle=None, headvent=None, vpid=None, arrowid=None):
550 """\
551 draw an arrow or change existing arrow attributes.
552
553 Parameters:
554 xtail: x position of arrow tail
555 xhead: x position of arrow head
556 ytail: y position of arrow tail
557 yhead: y position of arrow head
558 color: color of arrow. see output of list_colornames().
559 default is "black".
560 width: width of arrow line and outline of arrow head.
561 default is 1.
562 linestyle: line style. available styles can be listed via
563 list_linestyles().
564 headsize: size of arrow head. default is 1.0.
565 headfs: fill style of arrow head. see output of
566 list_arrowheadfillstyles(). default is "solid".
567 headangle: acute angle of arrow head in unit of degree.
568 default is 45.0.
569 headvent: fraction of the triangular arrow-head that is
570 cut away from the back. 0.0 gives a triangular
571 wedge arrow head while 1.0 gives an open
572 '>'-shaped one. default is 0.3.
573 vpid: viewport id. when not given, the last viewport
574 will be the target.
575 arrowid: arrow id. when not given, the arrow having the
576 final arrow id for the specified viewport will
577 be the target.
578 """
579 if color is None: color = "black"
580 if width is None: width = 1
581 if linestyle is None: linestyle = "solid"
582 if headsize is None: headsize = 1.0
583 if headfs is None: headfs = "solid"
584 if headangle is None: headangle = 45.0
585 if headvent is None: headvent = 0.3
586 if vpid is None: vpid = -1
587 if arrowid is None: arrowid = -1
588
589 coloridx = self.get_colorindex(color)
590 linestyleidx = self.get_linestyleindex(linestyle)
591 headfsidx = self.get_arrowheadfillstyleindex(headfs)
592
593 self._plotter.set_arrow(xtail, xhead, ytail, yhead, coloridx, width, linestyleidx, headsize, headfsidx, headangle, headvent, vpid, arrowid)
594
595 def set_text(self, text, posx=None, posy=None, angle=None, fjust=None, size=None, style=None, color=None, bgcolor=None, vpid=None, textid=None):
596 """\
597 write text string or change existing text attributes.
598
599 Parameters:
600 text: text string.
601 posx: x position of text in world coordinate.
602 default is center of x axis.
603 posy: y position of text in world coordinate.
604 default is center of y axis.
605 angle: rotation angle of text in unit of degree.
606 0.0 (default) is horizontal.
607 fjust: horizontal justification of text string. if 0.0
608 (default) is given, the text is left-justified at
609 (posx, posy). if 0.5, the text is centered, and if
610 1.0, the text is right-justified.
611 size: size of text string. the default is 1.0.
612 style: font style. "normal", "roman", "italic" and "script"
613 are available. default is "normal".
614 color: color of text. see output of list_colornames().
615 default is "black".
616 bgcolor: background color of text. see output of
617 list_colornames(). default is transparent(-1).
618 vpid: viewport id. when not given, the last viewport will
619 be the target.
620 textid: text id independently defined for each viewport.
621 when not given, the text having the final text id
622 for the specified viewport will be the target.
623 """
624 if posx is None: posx = -1.0
625 if posy is None: posy = -1.0
626 if angle is None: angle = 0.0
627 if fjust is None: fjust = 0.0
628 if size is None: size = 1.0
629 if style is None: style = ""
630 if color is None: color = "black"
631 if bgcolor is None: bgcolor = "" # transparent
632 if vpid is None: vpid = -1
633 if textid is None: textid = -1
634
635 coloridx = self.get_colorindex(color)
636 bgcoloridx = self.get_colorindex(bgcolor) if (bgcolor.strip() != "") else -1 #bgcolor
637
638 self._plotter.set_text(text, posx, posy, angle, fjust, size, style, coloridx, bgcoloridx, vpid, textid)
639
640 def set_xlabel(self, label, style=None, size=None, posx=None, posy=None, vpid=None):
641 """\
642 set label string along x axis. when the position of label is
643 specified explicitly by posx and posy, the label appears so
644 that its center placed on the specified position.
645
646 Parameters:
647 label: label string.
648 style: font style. "normal", "roman", "italic" and "script"
649 are available. default is "normal".
650 size: font size. default is 1.1 (10% larger than that
651 of number labels)
652 posx: x position of label string in window coordinate.
653 default is the center of x axis.
654 posy: y position of label string in window coordinate.
655 vpid: viewport id. when not given, the last viewport
656 will be the target.
657 """
658 if style is None: style = ""
659 if size is None: size = 1.1
660 if posx is None: posx = -1.0
661 if posy is None: posy = -1.0
662 if vpid is None: vpid = -1
663
664 self._plotter.set_label_x(label, posx, posy, size, style, 1, 0, vpid)
665
666 def set_ylabel(self, label, style=None, size=None, posx=None, posy=None, vpid=None):
667 """\
668 set label string along y axis. when the position of label is
669 specified explicitly by posx and posy, the label appears so
670 that its center placed on the specified position.
671
672 Parameters:
673 label: label string.
674 style: font style. "normal", "roman", "italic" and "script"
675 are available. default is "normal".
676 size: font size. default is 1.1 (10% larger than that
677 of number labels)
678 posx: x position of label string in window coordinate.
679 posy: y position of label string in window coordinate.
680 default is the center of y axis.
681 vpid: viewport id. when not given, the last viewport
682 will be the target.
683 """
684 if style is None: style = ""
685 if size is None: size = 1.1
686 if posx is None: posx = -1.0
687 if posy is None: posy = -1.0
688 if vpid is None: vpid = -1
689
690 self._plotter.set_label_y(label, posx, posy, size, style, 1, 0, vpid)
691
692 def set_title(self, title, style=None, size=None, posx=None, posy=None, vpid=None):
693 """\
694 set title string over the top of the specified viewport.
695 when the position of title is specified explicitly by posx
696 and posy, the title appears so that its center placed on
697 the specified position.
698
699 Parameters:
700 title: title string.
701 style: font style. "normal", "roman", "italic" and "script"
702 are available. default is "normal".
703 size: font size. default is 1.5 (50% larger than that
704 of number titles)
705 posx: x position of title string in window coordinate.
706 posy: y position of title string.
707 default is the center of y axis.
708 vpid: viewport id. when not given, the last viewport
709 will be the target.
710 """
711 if style is None: style = ""
712 if size is None: size = 1.5
713 if posx is None: posx = -1.0
714 if posy is None: posy = -1.0
715 if vpid is None: vpid = -1
716
717 self._plotter.set_title(title, posx, posy, size, style, 1, 0, vpid)
718
719 def set_vpbgcolor(self, bgcolor, vpid=None):
720 """\
721 change the background color of the specified viewport.
722 default is transparent.
723
724 Parameters:
725 bgcolor: background color. see output of list_colornames().
726 default is "" (transparent).
727 vpid: viewport id. when not given, the last viewport
728 will be the target.
729 """
730 if vpid is None: vpid = -1
731
732 if bgcolor.strip() == "":
733 coloridx = -1
734 else:
735 coloridx = self.get_colorindex(bgcolor)
736
737 self._plotter.set_vpbgcolor(coloridx, vpid)
738
739 def plot(self):
740 """\
741 execute actual plotting.
742 """
743 self._plotter.plot()
744
745 def save(self, filename):
746 """\
747 save the figure in a file with specified name.
748 the filename and device previously set by set_output() is
749 not affected by this command.
750
751 Parameters:
752 filename: output file name.
753 """
754 prev_filename = self._plotter.get_filename()
755 prev_dev = self._plotter.get_device()
756
757 self.set_output(filename)
758 self.plot()
759
760 self.set_output(prev_filename, prev_dev)
761
762 def get_vinfo(self):
763 self._plotter.get_vinfo()
764
765 @classmethod
766 def get_colorindex(cls, colorname):
767 """\
768 convert the given color name into color index used in PGPLOT.
769 """
770 name = colorname.strip().lower()
771 available_color = True
772
773 if name == "white": idx = 0 # our definition of bgcolor
774 elif name == "black": idx = 1 # our definition of fgcolor
775 elif name == "red": idx = 2
776 elif name == "green": idx = 3
777 elif name == "blue": idx = 4
778 elif name == "cyan": idx = 5
779 elif name == "magenta": idx = 6
780 elif name == "yellow": idx = 7
781 elif name == "orange": idx = 8
782 elif name == "yellowgreen": idx = 9
783 elif name == "emerald": idx = 10
784 elif name == "skyblue": idx = 11
785 elif name == "purple": idx = 12
786 elif name == "pink": idx = 13
787 elif name == "gray": idx = 14
788 elif name == "lightgray": idx = 15
789 else: available_color = False
790
791 if (available_color):
792 return idx
793 else:
794 raise ValueError("Unavailable colour name.")
795
796 @classmethod
797 def list_colornames(cls):
798 """\
799 list the available color names.
800 """
801 print "plotter2: default color list ----"
802 print " (0) white (background)"
803 print " (1) black (foreground)"
804 print " (2) red"
805 print " (3) green"
806 print " (4) blue"
807 print " (5) cyan"
808 print " (6) magenta"
809 print " (7) yellow"
810 print " (8) orange"
811 print " (9) yellowgreen"
812 print " (10) emerald"
813 print " (11) skyblue"
814 print " (12) purple"
815 print " (13) pink"
816 print " (14) gray"
817 print " (15) lightgray"
818 print "---------------------------------"
819
820 @classmethod
821 def get_linestyleindex(cls, fstyle):
822 """\
823 convert the given line style into style index used in PGPLOT.
824 """
825 style = fstyle.strip().lower()
826 available_style = True
827
828 if style == "solid": idx = 1
829 elif style == "dashed": idx = 2
830 elif style == "dash-dotted": idx = 3
831 elif style == "dotted": idx = 4
832 elif style == "dash-dot-dot-dotted": idx = 5
833 else: available_style = False
834
835 if (available_style):
836 return idx
837 else:
838 raise ValueError("Unavailable line style.")
839
840 @classmethod
841 def list_linestyles(cls):
842 """\
843 list the available line styles.
844 """
845 print "plotter2: fill style list ----"
846 print " (1) solid"
847 print " (2) dashed"
848 print " (3) dash-dotted"
849 print " (4) dotted"
850 print " (5) dash-dot-dot-dotted"
851 print "------------------------------"
852
853 @classmethod
854 def get_fillstyleindex(cls, fstyle):
855 """\
856 convert the given fill style into style index used in PGPLOT.
857 """
858 style = fstyle.strip().lower()
859 available_style = True
860
861 if style == "solid": idx = 1
862 elif style == "outline": idx = 2
863 elif style == "hatched": idx = 3
864 elif style == "crosshatched": idx = 4
865 else: available_style = False
866
867 if (available_style):
868 return idx
869 else:
870 raise ValueError("Unavailable fill style.")
871
872 @classmethod
873 def list_fillstyles(cls):
874 """\
875 list the available fill styles.
876 """
877 print "plotter2: fill style list ----"
878 print " (1) solid"
879 print " (2) outline"
880 print " (3) hatched"
881 print " (4) crosshatched"
882 print "------------------------------"
883
884 @classmethod
885 def get_arrowheadfillstyleindex(cls, fstyle):
886 """\
887 convert the given arrowhead fill style into style index used in PGPLOT.
888 """
889 style = fstyle.strip().lower()
890 available_style = True
891
892 if style == "solid": idx = 1
893 elif style == "outline": idx = 2
894 else: available_style = False
895
896 if (available_style):
897 return idx
898 else:
899 raise ValueError("Unavailable fill style for arrow head.")
900
901 @classmethod
902 def list_arrowheadfillstyles(cls):
903 """\
904 list the available fill styles for arrow head.
905 """
906 print "plotter2: arrow head fill style list ----"
907 print " (1) solid"
908 print " (2) outline"
909 print "-----------------------------------------"
910
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