1 | from asap.asaplot import ASAPlot
|
---|
2 | from asap import rcParams
|
---|
3 |
|
---|
4 | class asapplotter:
|
---|
5 | """
|
---|
6 | The ASAP plotter.
|
---|
7 | By default the plotter is set up to plot polarisations
|
---|
8 | 'colour stacked' and scantables across panels.
|
---|
9 | Note:
|
---|
10 | Currenly it only plots 'spectra' not Tsys or
|
---|
11 | other variables.
|
---|
12 | """
|
---|
13 | def __init__(self):
|
---|
14 | self._plotter = ASAPlot()
|
---|
15 |
|
---|
16 | self._tdict = {'Time':'t','time':'t','t':'t','T':'t'}
|
---|
17 | self._bdict = {'Beam':'b','beam':'b','b':'b','B':'b'}
|
---|
18 | self._idict = {'IF':'i','if':'i','i':'i','I':'i'}
|
---|
19 | self._pdict = {'Pol':'p','pol':'p','p':'p'}
|
---|
20 | self._sdict = {'scan':'s','Scan':'s','s':'s','S':'s'}
|
---|
21 | self._cdict = {'t':'len(self._cursor["t"])',
|
---|
22 | 'b':'len(self._cursor["b"])',
|
---|
23 | 'i':'len(self._cursor["i"])',
|
---|
24 | 'p':'len(self._cursor["p"])',
|
---|
25 | 's':'len(scans)'}
|
---|
26 | self._ldict = {'b':'Beam',
|
---|
27 | 'i':'IF',
|
---|
28 | 'p':'Pol',
|
---|
29 | 's':'Scan'}
|
---|
30 | self._dicts = [self._tdict,self._bdict,
|
---|
31 | self._idict,self._pdict,
|
---|
32 | self._sdict]
|
---|
33 | self._panels = 's'
|
---|
34 | self._stacking = rcParams['plotter.stacking']
|
---|
35 | self._rows = None
|
---|
36 | self._cols = None
|
---|
37 | self._autoplot = False
|
---|
38 | self._minmaxx = None
|
---|
39 | self._minmaxy = None
|
---|
40 | self._data = None
|
---|
41 | self._lmap = []
|
---|
42 | self._title = None
|
---|
43 | self._ordinate = None
|
---|
44 | self._abcissa = None
|
---|
45 | self._cursor = {'t':None, 'b':None,
|
---|
46 | 'i':None, 'p':None
|
---|
47 | }
|
---|
48 |
|
---|
49 | def _translate(self, name):
|
---|
50 | for d in self._dicts:
|
---|
51 | if d.has_key(name):
|
---|
52 | return d[name]
|
---|
53 | return None
|
---|
54 |
|
---|
55 | def plot(self, *args):
|
---|
56 | """
|
---|
57 | Plot a (list of) scantables.
|
---|
58 | Parameters:
|
---|
59 | one or more comma separated scantables
|
---|
60 | Note:
|
---|
61 | If a (list) of scantables was specified in a previous call
|
---|
62 | to plot, no argument has to be given to 'replot'
|
---|
63 | NO checking is done that the abcissas of the scantables
|
---|
64 | are consistent e.g. all 'channel' or all 'velocity' etc.
|
---|
65 | """
|
---|
66 | if self._plotter.is_dead:
|
---|
67 | self._plotter = ASAPlot()
|
---|
68 | self._plotter.clear()
|
---|
69 | self._plotter.hold()
|
---|
70 | if len(args) > 0:
|
---|
71 | if self._data is not None:
|
---|
72 | if list(args) != self._data:
|
---|
73 | self._data = list(args)
|
---|
74 | # reset cursor
|
---|
75 | self.set_cursor()
|
---|
76 | else:
|
---|
77 | self._data = list(args)
|
---|
78 | self.set_cursor()
|
---|
79 | if self._panels == 't':
|
---|
80 | if self._data[0].nrow() > 49:
|
---|
81 | print "Scan to be plotted contains more than 25 rows.\n \
|
---|
82 | Can't plot that many panels..."
|
---|
83 | return
|
---|
84 | self._plot_time(self._data[0], self._stacking)
|
---|
85 | elif self._panels == 's':
|
---|
86 | self._plot_scans(self._data, self._stacking)
|
---|
87 | else:
|
---|
88 | self._plot_other(self._data, self._stacking)
|
---|
89 | if self._minmaxx is not None or self._minmaxy is not None:
|
---|
90 | self._plotter.set_limits(xlim=self._minmaxx,ylim=self._minmaxy)
|
---|
91 | self._plotter.release()
|
---|
92 | return
|
---|
93 |
|
---|
94 | def _plot_time(self, scan, colmode):
|
---|
95 | if colmode == 't':
|
---|
96 | return
|
---|
97 | n = len(self._cursor["t"])
|
---|
98 | cdict = {'b':'scan.setbeam(j)',
|
---|
99 | 'i':'scan.setif(j)',
|
---|
100 | 'p':'scan.setpol(j)'}
|
---|
101 | cdict2 = {'b':'self._cursor["b"]',
|
---|
102 | 'i':'self._cursor["i"]',
|
---|
103 | 'p':'self._cursor["p"]'}
|
---|
104 | ncol = 1
|
---|
105 | if self._stacking is not None:
|
---|
106 | ncol = eval(self._cdict.get(colmode))
|
---|
107 | self._plotter.set_panels()
|
---|
108 | if n > 1:
|
---|
109 | if self._rows and self._cols:
|
---|
110 | n = min(n,self._rows*self._cols)
|
---|
111 | self._plotter.set_panels(rows=self._rows,cols=self._cols,
|
---|
112 | nplots=n)
|
---|
113 | else:
|
---|
114 | self._plotter.set_panels(rows=n,cols=0,nplots=n)
|
---|
115 | rows = self._cursor["t"]
|
---|
116 | self._plotter.palette(1)
|
---|
117 | for rowsel in rows:
|
---|
118 | i = self._cursor["t"].index(rowsel)
|
---|
119 | if n > 1:
|
---|
120 | self._plotter.palette(1)
|
---|
121 | self._plotter.subplot(i)
|
---|
122 | colvals = eval(cdict2.get(colmode))
|
---|
123 | for j in colvals:
|
---|
124 | polmode = "raw"
|
---|
125 | jj = colvals.index(j)
|
---|
126 | savej = j
|
---|
127 | for k in cdict.keys():
|
---|
128 | sel = eval(cdict2.get(k))
|
---|
129 | j = sel[0]
|
---|
130 | if k == "p":
|
---|
131 | which = self._cursor["p"].index(j)
|
---|
132 | polmode = self._polmode[which]
|
---|
133 | j = which
|
---|
134 | eval(cdict.get(k))
|
---|
135 | j = savej
|
---|
136 | if colmode == "p":
|
---|
137 | polmode = self._polmode[self._cursor["p"].index(j)]
|
---|
138 | j = jj
|
---|
139 | eval(cdict.get(colmode))
|
---|
140 | x = None
|
---|
141 | y = None
|
---|
142 | m = None
|
---|
143 | if not self._title:
|
---|
144 | tlab = scan._getsourcename(rowsel)
|
---|
145 | else:
|
---|
146 | if len(self._title) == n:
|
---|
147 | tlab = self._title[rowsel]
|
---|
148 | else:
|
---|
149 | tlab = scan._getsourcename(rowsel)
|
---|
150 | x,xlab = scan.get_abcissa(rowsel)
|
---|
151 | if self._abcissa: xlab = self._abcissa
|
---|
152 | y = None
|
---|
153 | if polmode == "stokes":
|
---|
154 | y = scan._getstokesspectrum(rowsel)
|
---|
155 | elif polmode == "stokes2":
|
---|
156 | y = scan._getstokesspectrum(rowsel,True)
|
---|
157 | else:
|
---|
158 | y = scan._getspectrum(rowsel)
|
---|
159 | if self._ordinate:
|
---|
160 | ylab = self._ordinate
|
---|
161 | else:
|
---|
162 | ylab = 'Flux ('+scan.get_fluxunit()+')'
|
---|
163 | m = scan._getmask(rowsel)
|
---|
164 | if self._lmap and len(self._lmap) > 0:
|
---|
165 | llab = self._lmap[jj]
|
---|
166 | else:
|
---|
167 | if colmode == 'p':
|
---|
168 | if polmode == "stokes":
|
---|
169 | llab = scan._getpolarizationlabel(0,1,0)
|
---|
170 | elif polmode == "stokes2":
|
---|
171 | llab = scan._getpolarizationlabel(0,1,1)
|
---|
172 | else:
|
---|
173 | llab = scan._getpolarizationlabel(1,0,0)
|
---|
174 | else:
|
---|
175 | llab = self._ldict.get(colmode)+' '+str(j)
|
---|
176 | self._plotter.set_line(label=llab)
|
---|
177 | self._plotter.plot(x,y,m)
|
---|
178 | xlim=[min(x),max(x)]
|
---|
179 | self._plotter.axes.set_xlim(xlim)
|
---|
180 | self._plotter.set_axes('xlabel',xlab)
|
---|
181 | self._plotter.set_axes('ylabel',ylab)
|
---|
182 | self._plotter.set_axes('title',tlab)
|
---|
183 | return
|
---|
184 |
|
---|
185 | def _plot_scans(self, scans, colmode):
|
---|
186 | print "Can only plot one row per scan."
|
---|
187 | if colmode == 's':
|
---|
188 | return
|
---|
189 | cdict = {'b':'scan.setbeam(j)',
|
---|
190 | 'i':'scan.setif(j)',
|
---|
191 | 'p':'scan.setpol(j)'}
|
---|
192 | cdict2 = {'b':'self._cursor["b"]',
|
---|
193 | 'i':'self._cursor["i"]',
|
---|
194 | 'p':'self._cursor["p"]'}
|
---|
195 |
|
---|
196 | n = len(scans)
|
---|
197 | ncol = 1
|
---|
198 | if self._stacking is not None:
|
---|
199 | scan = scans[0]
|
---|
200 | ncol = eval(self._cdict.get(colmode))
|
---|
201 | self._plotter.set_panels()
|
---|
202 | if n > 1:
|
---|
203 | if self._rows and self._cols:
|
---|
204 | n = min(n,self._rows*self._cols)
|
---|
205 | self._plotter.set_panels(rows=self._rows,cols=self._cols,
|
---|
206 | nplots=n)
|
---|
207 | else:
|
---|
208 | self._plotter.set_panels(rows=n,cols=0,nplots=n)
|
---|
209 | self._plotter.palette(1)
|
---|
210 | for scan in scans:
|
---|
211 | if n > 1:
|
---|
212 | self._plotter.subplot(scans.index(scan))
|
---|
213 | self._plotter.palette(1)
|
---|
214 | colvals = eval(cdict2.get(colmode))
|
---|
215 | rowsel = self._cursor["t"][0]
|
---|
216 | for j in colvals:
|
---|
217 | polmode = "raw"
|
---|
218 | jj = colvals.index(j)
|
---|
219 | savej = j
|
---|
220 | for k in cdict.keys():
|
---|
221 | sel = eval(cdict2.get(k))
|
---|
222 | j = sel[0]
|
---|
223 | eval(cdict.get(k))
|
---|
224 | if k == "p":
|
---|
225 | which = self._cursor["p"].index(j)
|
---|
226 | polmode = self._polmode[which]
|
---|
227 | j = which
|
---|
228 | j = savej
|
---|
229 | if colmode == "p":
|
---|
230 | polmode = self._polmode[self._cursor["p"].index(j)]
|
---|
231 | j = jj
|
---|
232 | eval(cdict.get(colmode))
|
---|
233 | x = None
|
---|
234 | y = None
|
---|
235 | m = None
|
---|
236 | tlab = self._title
|
---|
237 | if not self._title:
|
---|
238 | tlab = scan._getsourcename(rowsel)
|
---|
239 | x,xlab = scan.get_abcissa(rowsel)
|
---|
240 | if self._abcissa: xlab = self._abcissa
|
---|
241 | if polmode == "stokes":
|
---|
242 | y = scan._getstokesspectrum(rowsel)
|
---|
243 | elif polmode == "stokes2":
|
---|
244 | y = scan._getstokesspectrum(rowsel,True)
|
---|
245 | else:
|
---|
246 | y = scan._getspectrum(rowsel)
|
---|
247 | if self._ordinate:
|
---|
248 | ylab = self._ordinate
|
---|
249 | else:
|
---|
250 | ylab = 'Flux ('+scan.get_fluxunit()+')'
|
---|
251 | m = scan._getmask(rowsel)
|
---|
252 | if self._lmap and len(self._lmap) > 0:
|
---|
253 | llab = self._lmap[jj]
|
---|
254 | else:
|
---|
255 | if colmode == 'p':
|
---|
256 | if polmode == "stokes":
|
---|
257 | llab = scan._getpolarizationlabel(0,1,0)
|
---|
258 | elif polmode == "stokes2":
|
---|
259 | llab = scan._getpolarizationlabel(0,1,1)
|
---|
260 | else:
|
---|
261 | llab = scan._getpolarizationlabel(1,0,0)
|
---|
262 | else:
|
---|
263 | llab = self._ldict.get(colmode)+' '+str(j)
|
---|
264 | self._plotter.set_line(label=llab)
|
---|
265 | self._plotter.plot(x,y,m)
|
---|
266 | xlim=[min(x),max(x)]
|
---|
267 | self._plotter.axes.set_xlim(xlim)
|
---|
268 |
|
---|
269 | self._plotter.set_axes('xlabel',xlab)
|
---|
270 | self._plotter.set_axes('ylabel',ylab)
|
---|
271 | self._plotter.set_axes('title',tlab)
|
---|
272 | return
|
---|
273 |
|
---|
274 | def _plot_other(self,scans,colmode):
|
---|
275 | if colmode == self._panels:
|
---|
276 | return
|
---|
277 | cdict = {'b':'scan.setbeam(i)',
|
---|
278 | 'i':'scan.setif(i)',
|
---|
279 | 'p':'scan.setpol(i)'}
|
---|
280 | cdict2 = {'b':'self._cursor["b"]',
|
---|
281 | 'i':'self._cursor["i"]',
|
---|
282 | 'p':'self._cursor["p"]',
|
---|
283 | 's': 'scans',
|
---|
284 | 't': 'self._cursor["t"]'}
|
---|
285 | scan = scans[0]
|
---|
286 | n = eval(self._cdict.get(self._panels))
|
---|
287 | ncol=1
|
---|
288 | if self._stacking is not None:
|
---|
289 | ncol = eval(self._cdict.get(colmode))
|
---|
290 | self._plotter.set_panels()
|
---|
291 | if n > 1:
|
---|
292 | if self._rows and self._cols:
|
---|
293 | n = min(n,self._rows*self._cols)
|
---|
294 | self._plotter.set_panels(rows=self._rows,cols=self._cols,
|
---|
295 | nplots=n)
|
---|
296 | else:
|
---|
297 | self._plotter.set_panels(rows=n,cols=0,nplots=n)
|
---|
298 | self._plotter.palette(1)
|
---|
299 | panels = self._cursor[self._panels]
|
---|
300 | for i in panels:
|
---|
301 | polmode = "raw"
|
---|
302 | ii = self._cursor[self._panels].index(i)
|
---|
303 | if n>1:
|
---|
304 | self._plotter.subplot(ii)
|
---|
305 | if self._panels == "p":
|
---|
306 | polmode = self._polmode[ii]
|
---|
307 | eval(cdict.get(self._panels))
|
---|
308 | else:
|
---|
309 | eval(cdict.get(self._panels))
|
---|
310 | colvals = eval(cdict2.get(colmode))
|
---|
311 | for j in colvals:
|
---|
312 | rowsel = self._cursor["t"][0]
|
---|
313 | jj = colvals.index(j)
|
---|
314 | savei = i
|
---|
315 | for k in cdict.keys():
|
---|
316 | if k != self._panels:
|
---|
317 | sel = eval(cdict2.get(k))
|
---|
318 | i = sel[0]
|
---|
319 | if k == "p":
|
---|
320 | which = self._cursor["p"].index(j)
|
---|
321 | polmode = self._polmode[which]
|
---|
322 | i = which
|
---|
323 | eval(cdict.get(k))
|
---|
324 | i = savei
|
---|
325 | if colmode == 's':
|
---|
326 | scan = j
|
---|
327 | elif colmode == 't':
|
---|
328 | rowsel = j
|
---|
329 | else:
|
---|
330 | savei = i
|
---|
331 | if colmode == 'p':
|
---|
332 | polmode = self._polmode[self._cursor["p"].index(j)]
|
---|
333 | i = j
|
---|
334 | eval(cdict.get(colmode))
|
---|
335 | i = savei
|
---|
336 | x = None
|
---|
337 | y = None
|
---|
338 | m = None
|
---|
339 | x,xlab = scan.get_abcissa(rowsel)
|
---|
340 | if self._abcissa: xlab = self._abcissa
|
---|
341 | if polmode == "stokes":
|
---|
342 | y = scan._getstokesspectrum(rowsel)
|
---|
343 | elif polmode == "stokes2":
|
---|
344 | y = scan._getstokesspectrum(rowsel,True)
|
---|
345 | else:
|
---|
346 | y = scan._getspectrum(rowsel)
|
---|
347 |
|
---|
348 | if self._ordinate:
|
---|
349 | ylab = self._ordinate
|
---|
350 | else:
|
---|
351 | ylab = 'Flux ('+scan.get_fluxunit()+')'
|
---|
352 | m = scan._getmask(rowsel)
|
---|
353 | if colmode == 's' or colmode == 't':
|
---|
354 | if self._title and len(self._title) > 0:
|
---|
355 | tlab = self._title[ii]
|
---|
356 | else:
|
---|
357 | tlab = self._ldict.get(self._panels)+' '+str(i)
|
---|
358 | llab = scan._getsourcename(rowsel)
|
---|
359 | else:
|
---|
360 | if self._title and len(self._title) > 0:
|
---|
361 | tlab = self._title[ii]
|
---|
362 | else:
|
---|
363 | tlab = self._ldict.get(self._panels)+' '+str(i)
|
---|
364 | if self._lmap and len(self._lmap) > 0:
|
---|
365 | llab = self._lmap[jj]
|
---|
366 | else:
|
---|
367 | if colmode == 'p':
|
---|
368 | if polmode == "stokes":
|
---|
369 | llab = scan._getpolarizationlabel(0,1,0)
|
---|
370 | elif polmode == "stokes2":
|
---|
371 | llab = scan._getpolarizationlabel(0,1,1)
|
---|
372 | else:
|
---|
373 | llab = scan._getpolarizationlabel(1,0,0)
|
---|
374 | else:
|
---|
375 | llab = self._ldict.get(colmode)+' '+str(j)
|
---|
376 | if self._panels == 'p':
|
---|
377 | if polmode == "stokes":
|
---|
378 | tlab = scan._getpolarizationlabel(0,1,0)
|
---|
379 | elif polmode == "stokes2":
|
---|
380 | tlab = scan._getpolarizationlabel(0,1,1)
|
---|
381 | else:
|
---|
382 | tlab = scan._getpolarizationlabel(1,0,0)
|
---|
383 | self._plotter.set_line(label=llab)
|
---|
384 | self._plotter.plot(x,y,m)
|
---|
385 | xlim=[min(x),max(x)]
|
---|
386 | self._plotter.axes.set_xlim(xlim)
|
---|
387 |
|
---|
388 | self._plotter.set_axes('xlabel',xlab)
|
---|
389 | self._plotter.set_axes('ylabel',ylab)
|
---|
390 | self._plotter.set_axes('title',tlab)
|
---|
391 |
|
---|
392 | return
|
---|
393 |
|
---|
394 |
|
---|
395 | def set_mode(self, stacking=None, panelling=None):
|
---|
396 | """
|
---|
397 | Set the plots look and feel, i.e. what you want to see on the plot.
|
---|
398 | Parameters:
|
---|
399 | stacking: tell the plotter which variable to plot
|
---|
400 | as line colour overlays (default 'pol')
|
---|
401 | panelling: tell the plotter which variable to plot
|
---|
402 | across multiple panels (default 'scan'
|
---|
403 | Note:
|
---|
404 | Valid modes are:
|
---|
405 | 'beam' 'Beam' 'b': Beams
|
---|
406 | 'if' 'IF' 'i': IFs
|
---|
407 | 'pol' 'Pol' 'p': Polarisations
|
---|
408 | 'scan' 'Scan' 's': Scans
|
---|
409 | 'time' 'Time' 't': Times
|
---|
410 | """
|
---|
411 | if not self.set_panels(panelling):
|
---|
412 | print "Invalid mode"
|
---|
413 | return
|
---|
414 | if not self.set_stacking(stacking):
|
---|
415 | print "Invalid mode"
|
---|
416 | return
|
---|
417 | if self._data: self.plot()
|
---|
418 | return
|
---|
419 |
|
---|
420 | def set_panels(self, what=None):
|
---|
421 | if not what:
|
---|
422 | what = rcParams['plotter.panelling']
|
---|
423 | md = self._translate(what)
|
---|
424 | if md:
|
---|
425 | self._panels = md
|
---|
426 | self._title = None
|
---|
427 | return True
|
---|
428 | return False
|
---|
429 |
|
---|
430 | def set_layout(self,rows=None,cols=None):
|
---|
431 | """
|
---|
432 | Set the multi-panel layout, i.e. how many rows and columns plots
|
---|
433 | are visible.
|
---|
434 | Parameters:
|
---|
435 | rows: The number of rows of plots
|
---|
436 | cols: The number of columns of plots
|
---|
437 | Note:
|
---|
438 | If no argument is given, the potter reverts to its auto-plot
|
---|
439 | behaviour.
|
---|
440 | """
|
---|
441 | self._rows = rows
|
---|
442 | self._cols = cols
|
---|
443 | if self._data: self.plot()
|
---|
444 | return
|
---|
445 |
|
---|
446 | def set_stacking(self, what=None):
|
---|
447 | if not what:
|
---|
448 | what = rcParams['plotter.stacking']
|
---|
449 | md = self._translate(what)
|
---|
450 | if md:
|
---|
451 | self._stacking = md
|
---|
452 | self._lmap = None
|
---|
453 | return True
|
---|
454 | return False
|
---|
455 |
|
---|
456 | def set_range(self,xstart=None,xend=None,ystart=None,yend=None):
|
---|
457 | """
|
---|
458 | Set the range of interest on the abcissa of the plot
|
---|
459 | Parameters:
|
---|
460 | [x,y]start,[x,y]end: The start and end points of the 'zoom' window
|
---|
461 | Note:
|
---|
462 | These become non-sensical when the unit changes.
|
---|
463 | use plotter.set_range() without parameters to reset
|
---|
464 |
|
---|
465 | """
|
---|
466 | if xstart is None and xend is None:
|
---|
467 | self._minmaxx = None
|
---|
468 | if self._data: self.plot()
|
---|
469 | return
|
---|
470 | if ystart is None and yend is None:
|
---|
471 | self._minmaxy = None
|
---|
472 | if self._data: self.plot()
|
---|
473 | return
|
---|
474 | self._minmaxx = [xstart,xend]
|
---|
475 | self._minmaxy = [ystart,yend]
|
---|
476 | if self._data: self.plot()
|
---|
477 | return
|
---|
478 |
|
---|
479 | def set_legend(self, mp=None):
|
---|
480 | """
|
---|
481 | Specify a mapping for the legend instead of using the default
|
---|
482 | indices:
|
---|
483 | Parameters:
|
---|
484 | mp: a list of 'strings'. This should have the same length
|
---|
485 | as the number of elements on the legend and then maps
|
---|
486 | to the indeces in order
|
---|
487 |
|
---|
488 | Example:
|
---|
489 | If the data has two IFs/rest frequencies with index 0 and 1
|
---|
490 | for CO and SiO:
|
---|
491 | plotter.set_stacking('i')
|
---|
492 | plotter.set_legend_map(['CO','SiO'])
|
---|
493 | plotter.plot()
|
---|
494 | """
|
---|
495 | self._lmap = mp
|
---|
496 | if self._data: self.plot()
|
---|
497 | return
|
---|
498 |
|
---|
499 | def set_title(self, title=None):
|
---|
500 | self._title = title
|
---|
501 | if self._data: self.plot()
|
---|
502 | return
|
---|
503 |
|
---|
504 | def set_ordinate(self, ordinate=None):
|
---|
505 | self._ordinate = ordinate
|
---|
506 | if self._data: self.plot()
|
---|
507 | return
|
---|
508 |
|
---|
509 | def set_abcissa(self, abcissa=None):
|
---|
510 | self._abcissa = abcissa
|
---|
511 | if self._data: self.plot()
|
---|
512 | return
|
---|
513 |
|
---|
514 | def save(self, filename=None):
|
---|
515 | """
|
---|
516 | Save the plot to a file. The know formats are 'png', 'ps', 'eps'.
|
---|
517 | Parameters:
|
---|
518 | filename: The name of the output file. This is optional
|
---|
519 | and autodetects the image format from the file
|
---|
520 | suffix. If non filename is specified a file
|
---|
521 | called 'yyyymmdd_hhmmss.png' is created in the
|
---|
522 | current directory.
|
---|
523 | """
|
---|
524 | self._plotter.save(filename)
|
---|
525 | return
|
---|
526 |
|
---|
527 | def set_cursor(self, row=None,beam=None,IF=None,pol=None):
|
---|
528 | """
|
---|
529 | Specify a 'cursor' for plotting selected spectra. Time (rows),
|
---|
530 | Beam, IF, Polarisation ranges can be specified.
|
---|
531 | Parameters:
|
---|
532 | Default for all paramaters is to select all available
|
---|
533 | row: selects the rows (time stamps) to be plotted, this has
|
---|
534 | to be a vector of row indices, e.g. row=[0,2,5] or row=[2]
|
---|
535 | beam: select a range of beams
|
---|
536 | IF: select a range of IFs
|
---|
537 | pol: select Polarisations for plotting these can be by index
|
---|
538 | (raw polarisations (default)) or by names any of:
|
---|
539 | ["I", "Q", "U", "V"] or
|
---|
540 | ["I", "Plinear", "Pangle", "V"] or
|
---|
541 | ["XX", "YY", "Real(XY)", "Imag(XY)"]
|
---|
542 | Circular polarisation are not handled yet.
|
---|
543 | Example:
|
---|
544 | plotter.set_mode('pol','time')
|
---|
545 | plotter.plot(myscan) # plots all raw polarisations colour stacked
|
---|
546 | plotter.set_cursor(pol=["I"]) # plot "I" only for all rows
|
---|
547 | # plot "I" only for two time stamps row=0 and row=2
|
---|
548 | plotter.set_cursor(row=[0,2],pol=["I"])
|
---|
549 |
|
---|
550 | Note:
|
---|
551 | Be careful to select only exisiting polarisations.
|
---|
552 | """
|
---|
553 | if not self._data:
|
---|
554 | print "Can only set cursor after a first call to plot()"
|
---|
555 | return
|
---|
556 |
|
---|
557 | n = self._data[0].nrow()
|
---|
558 | if row is None:
|
---|
559 | self._cursor["t"] = range(n)
|
---|
560 | else:
|
---|
561 | for i in row:
|
---|
562 | if 0 > i >= n:
|
---|
563 | print "Row index '%d' out of range" % i
|
---|
564 | return
|
---|
565 | self._cursor["t"] = row
|
---|
566 |
|
---|
567 | n = self._data[0].nbeam()
|
---|
568 | if beam is None:
|
---|
569 | self._cursor["b"] = range(n)
|
---|
570 | else:
|
---|
571 | for i in beam:
|
---|
572 | if 0 > i >= n:
|
---|
573 | print "Beam index '%d' out of range" % i
|
---|
574 | return
|
---|
575 | self._cursor["b"] = beam
|
---|
576 |
|
---|
577 | n = self._data[0].nif()
|
---|
578 | if IF is None:
|
---|
579 | self._cursor["i"] = range(n)
|
---|
580 | else:
|
---|
581 | for i in IF:
|
---|
582 | if 0 > i >= n:
|
---|
583 | print "IF index '%d' out of range" %i
|
---|
584 | return
|
---|
585 | self._cursor["i"] = IF
|
---|
586 |
|
---|
587 | n = self._data[0].npol()
|
---|
588 | dstokes = {"I":0,"Q":1,"U":2,"V":3}
|
---|
589 | dstokes2 = {"I":0,"Plinear":1,"Pangle":2,"V":3}
|
---|
590 | draw = {"XX":0, "YY":1,"Real(XY)":2, "Imag(XY)":3}
|
---|
591 | dcirc = { "RR":0,"LL":1,"RL":2,"LR":3}
|
---|
592 |
|
---|
593 | if pol is None:
|
---|
594 | self._cursor["p"] = range(n)
|
---|
595 | self._polmode = ["raw" for i in range(n)]
|
---|
596 | else:
|
---|
597 | if isinstance(pol,str):
|
---|
598 | pol = pol.split()
|
---|
599 | polmode = []
|
---|
600 | pols = []
|
---|
601 | for i in pol:
|
---|
602 | if isinstance(i,str):
|
---|
603 | if draw.has_key(i):
|
---|
604 | pols.append(draw.get(i))
|
---|
605 | polmode.append("raw")
|
---|
606 | elif dstokes.has_key(i):
|
---|
607 | pols.append(dstokes.get(i))
|
---|
608 | polmode.append("stokes")
|
---|
609 | elif dstokes2.has_key(i):
|
---|
610 | pols.append(dstokes2.get(i))
|
---|
611 | polmode.append("stokes2")
|
---|
612 | elif dcirc.has_key(i):
|
---|
613 | pols.append(dcirc.get(i))
|
---|
614 | polmode.append("cricular")
|
---|
615 | else:
|
---|
616 | "Pol type '%s' not valid" %i
|
---|
617 | return
|
---|
618 | elif 0 > i >= n:
|
---|
619 | print "Pol index '%d' out of range" %i
|
---|
620 | return
|
---|
621 | else:
|
---|
622 | pols.append(i)
|
---|
623 | polmode.append("raw")
|
---|
624 | self._cursor["p"] = pols
|
---|
625 | self._polmode = polmode
|
---|
626 | if self._data: self.plot()
|
---|
627 |
|
---|
628 |
|
---|
629 | if __name__ == '__main__':
|
---|
630 | plotter = asapplotter()
|
---|