source: trunk/python/asapplotter.py@ 238

Last change on this file since 238 was 226, checked in by mar637, 20 years ago

added rcParams to support rc style default parameters, read from .asaprc
  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 11.1 KB
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[203]1from asap.asaplot import ASAPlot
[226]2from asap import rcParams
[203]3
4class asapplotter:
[226]5 """
6 The ASAP plotter.
7 By default the plotter is set up to plot polarisations
8 'colour stacked' and scantables across panels.
9 The defaul plotter is called 'plotter'.
10 Note:
11 Currenly it only plots 'spectra' not Tsys or
12 other variables.
13 """
[203]14 def __init__(self):
15 self._plotter = ASAPlot()
16
17 self._tdict = {'Time':'t','time':'t','t':'t','T':'t'}
18 self._bdict = {'Beam':'b','beam':'b','b':'b','B':'b'}
19 self._idict = {'IF':'i','if':'i','i':'i','I':'i'}
20 self._pdict = {'Pol':'p','pol':'p','p':'p'}
21 self._sdict = {'scan':'s','Scan':'s','s':'s','S':'s'}
22 self._cdict = {'t':'scan.nrow()',
23 'b':'scan.nbeam()',
24 'i':'scan.nif()',
25 'p':'scan.npol()',
26 's':'len(scans)'}
27 self._ldict = {'b':'Beam',
28 'i':'IF',
29 'p':'Pol',
30 's':'Scan'}
31 self._dicts = [self._tdict,self._bdict,
32 self._idict,self._pdict,
33 self._sdict]
34 self._panels = 's'
[226]35 self._stacking = rcParams['plotter.stacking']
[203]36 self._autoplot = False
37 self._minmax = None
38 self._data = None
39 self._lmap = []
[226]40 self._title = None
[203]41
42 def _translate(self, name):
43 for d in self._dicts:
44 if d.has_key(name):
45 return d[name]
46 return None
47
48 def plot(self,*args):
49 """
50 Plot a (list of) scantables.
51 Parameters:
52 one or more comma separated scantables
53 Note:
54 If a (list) of scantables was specified in a previous call
55 to plot, no argument has to be given to 'replot'
56 NO checking is done that the abscissas of the scantables
57 are consistent e.g. all 'channel' or all 'velocity' etc.
58 """
59 if self._plotter.is_dead:
60 self._plotter = ASAPlot()
61 self._plotter.clear()
62 self._plotter.hold()
63 if len(args) > 0:
64 self._data = tuple(args)
65 if self._panels == 't':
66 if self._data[0].nrow() > 25:
67 print "Scan to be plotted contains more than 25 rows.\nCan't plot that many panels..."
68 return
69 self._plot_time(self._data[0], self._stacking)
70 elif self._panels == 's':
71 self._plot_scans(self._data, self._stacking)
72 else:
73 self._plot_other(self._data, self._stacking)
74 if self._minmax is not None:
75 self._plotter.set_limits(xlim=self._minmax)
76 self._plotter.release()
77 return
78
79 def _plot_time(self, scan, colmode):
80 if colmode == 't':
81 return
82 n = scan.nrow()
83 cdict = {'b':'scan.setbeam(j)',
84 'i':'scan.setif(j)',
85 'p':'scan.setpol(j)'}
86 if self._stacking is not None:
87 ncol = eval(self._cdict.get(colmode))
88 self._plotter.set_panels()
89 if n > 1:
90 self._plotter.set_panels(rows=n)
91 for i in range(n):
92 if n > 1:
93 self._plotter.palette(0)
94 self._plotter.subplot(i)
95 for j in range(ncol):
96 eval(cdict.get(colmode))
97 x = None
98 y = None
99 m = None
[226]100 if not self._title:
101 tlab = scan._getsourcename(i)
102 else:
103 if len(self._title) == n:
104 tlab = self._title[i]
105 else:
106 tlab = scan._getsourcename(i)
[203]107 x,xlab = scan.get_abcissa(i)
108 y = scan.getspectrum(i)
109 ylab = 'Flux ('+scan.get_fluxunit()+')'
110 m = scan.getmask(i)
[226]111 if self._lmap and len(self._lmap) > 0:
[203]112 llab = self._lmap[j]
113 else:
114 llab = self._ldict.get(colmode)+' '+str(j)
115 self._plotter.set_line(label=llab)
116 self._plotter.plot(x,y,m)
117 xlim=[min(x),max(x)]
118 self._plotter.axes.set_xlim(xlim)
119 self._plotter.set_axes('xlabel',xlab)
120 self._plotter.set_axes('ylabel',ylab)
121 self._plotter.set_axes('title',tlab)
122 return
123
124 def _plot_scans(self, scans, colmode):
125 if colmode == 's':
126 return
127 cdict = {'b':'scan.setbeam(j)',
128 'i':'scan.setif(j)',
129 'p':'scan.setpol(j)'}
130 n = len(scans)
131 if self._stacking is not None:
132 scan = scans[0]
133 ncol = eval(self._cdict.get(colmode))
134 self._plotter.set_panels()
135 if n > 1:
136 self._plotter.set_panels(rows=n)
137 i = 0
138 for scan in scans:
139 if n > 1:
140 self._plotter.subplot(i)
141 self._plotter.palette(0)
142 for j in range(ncol):
143 eval(cdict.get(colmode))
144 x = None
145 y = None
146 m = None
[226]147 tlab = self._title
148 if not self._title:
149 tlab = scan._getsourcename()
[203]150 x,xlab = scan.get_abcissa()
151 y = scan.getspectrum()
152 ylab = 'Flux ('+scan.get_fluxunit()+')'
153 m = scan.getmask()
154 if len(self._lmap) > 0:
155 llab = self._lmap[j]
156 else:
157 llab = self._ldict.get(colmode)+' '+str(j)
158 self._plotter.set_line(label=llab)
159 self._plotter.plot(x,y,m)
160 xlim=[min(x),max(x)]
161 self._plotter.axes.set_xlim(xlim)
162
163 self._plotter.set_axes('xlabel',xlab)
164 self._plotter.set_axes('ylabel',ylab)
165 self._plotter.set_axes('title',tlab)
166 i += 1
167 return
168
169 def _plot_other(self,scans,colmode):
170 if colmode == self._panels:
171 return
172 cdict = {'b':'scan.setbeam(j)',
173 'i':'scan.setif(j)',
174 'p':'scan.setpol(j)',
175 's':'scans[j]'}
176 scan = scans[0]
177 n = eval(self._cdict.get(self._panels))
178 if self._stacking is not None:
179 ncol = eval(self._cdict.get(colmode))
180 self._plotter.set_panels()
181 if n > 1:
182 self._plotter.set_panels(rows=n)
183 for i in range(n):
184 if n>1:
185 self._plotter.subplot(i)
186 self._plotter.palette(0)
187 k=0
188 j=i
189 eval(cdict.get(self._panels))
190 for j in range(ncol):
191 if colmode == 's':
192 scan = eval(cdict.get(colmode))
193 elif colmode == 't':
194 k = j
195 else:
196 eval(cdict.get(colmode))
197 x = None
198 y = None
199 m = None
200 x,xlab = scan.get_abcissa(k)
201 y = scan.getspectrum(k)
202 ylab = 'Flux ('+scan.get_fluxunit()+')'
203 m = scan.getmask(k)
204 if colmode == 's' or colmode == 't':
[226]205 if not self._title:
206 tlab = self._ldict.get(self._panels)+' '+str(i)
207 else:
208 if len(self.title) == n:
209 tlab = self._title[i]
210 else:
211 tlab = self._ldict.get(self._panels)+' '+str(i)
[203]212 llab = scan._getsourcename(k)
213 else:
[226]214 if self._title and len(self._title) > 0:
215 tlab = self._title[k]
216 else:
217 tlab = scan._getsourcename(k)
218 if self._lmap and len(self._lmap) > 0:
[203]219 llab = self._lmap[j]
220 else:
221 llab = self._ldict.get(colmode)+' '+str(j)
222 self._plotter.set_line(label=llab)
223 self._plotter.plot(x,y,m)
224 xlim=[min(x),max(x)]
225 self._plotter.axes.set_xlim(xlim)
226
227 self._plotter.set_axes('xlabel',xlab)
228 self._plotter.set_axes('ylabel',ylab)
229 self._plotter.set_axes('title',tlab)
230
231 return
232
233
[226]234 def set_mode(self, stacking=None, panelling=None):
[203]235 """
236 Parameters:
237 stacking: tell the plotter which variable to plot
238 as line colour overlays (default 'pol')
239 panelling: tell the plotter which variable to plot
240 across multiple panels (default 'scan'
241 Note:
242 Valid modes are:
243 'beam' 'Beam' 'b': Beams
244 'if' 'IF' 'i': IFs
245 'pol' 'Pol' 'p': Polarisations
246 'scan' 'Scan' 's': Scans
247 'time' 'Time' 't': Times
248 """
249 if not self.set_panels(panelling):
250 print "Invalid mode"
[226]251 return
[203]252 if not self.set_stacking(stacking):
253 print "Invalid mode"
[226]254 return
255 if self._data: self.plot()
[203]256 return
257
[226]258 def set_panels(self, what=None):
259 if not what:
260 what = rcParams['plotter.panelling']
[203]261 md = self._translate(what)
262 if md:
[226]263 self._panels = md
264 self._title = None
[203]265 return True
266 return False
267
[226]268 def set_stacking(self, what=None):
269 if not what:
270 what = rcParams['plotter.stacking']
[203]271 md = self._translate(what)
272 if md:
273 self._stacking = md
[226]274 self._lmap = None
[203]275 return True
276 return False
277
278 def set_range(self,start=None,end=None):
279 """
280 Set the range of interest on the abcissa of the plot
281 Parameters:
282 start,end: The start an end point of the 'zoom' window
283 Note:
284 These become non-sensical when the unit changes.
285 use plotter.set_range() without parameters to reset
286
287 """
288 if start is None and end is None:
289 self._minmax = None
[226]290 if self._data: self.plot()
[203]291 else:
292 self._minmax = [start,end]
[226]293 if self._data: self.plot()
[203]294 return
295
[226]296 def set_legend_map(self, mp=[]):
[203]297 """
298 Specify a mapping for the legend instead of using the default
299 indices:
300 Parameters:
301 mp: a list of 'strings'. This should have the same length
302 as the number of elements on the legend and then maps
303 to the indeces in order
304
305 Example:
306 If the data has to IFs/rest frequencies with index 0 and 1
307 for CO and SiO:
308 plotter.set_stacking('i')
309 plotter.set_legend_map(['CO','SiO'])
310 plotter.plot()
311 """
312 self._lmap = mp
[226]313 if self._data: self.plot()
314 return
315
316 def set_title(self, title=None):
317 self._title = title
318 if self._data: self.plot()
319 return
320
[203]321if __name__ == '__main__':
322 plotter = asapplotter()
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