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asapplotter.py @ 2693

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Last change on this file since 2693 was 2693, checked in by Kana Sugimoto, 11 years ago

New Development: Yes

JIRA Issue: Yes (Trac-287)

Ready for Test: Yes

Interface Changes: Yes

What Interface Changed: a new method, asapplotter.plotpointings2

Test Programs:

Put in Release Notes: No

Module(s): asapplotter, sdplot

Description:

a new method, asapplotter.plotpointings2, is created.
This method will be supposed to replace asapplotter.plotpointing
in near future if there's no issue found.
plotpointings2 plots pointing directions of a scantable.
It is possible to plot pointings of different source type, scanno,
ifno, polno, or beamno in different colors by setting the 'colorby'
paramter. When showline=True, the scan pattern is plotted in dotted
line.
This function alway plots pointings on ASAP plotter and works properly
with custom toolbar.

Property svn:eol-style set to native
Property svn:keywords set to Author Date Id Revision

File size: 78.1 KB

Rev	Line
[1824]	1	from asap.parameters import rcParams
	2	from asap.selector import selector
	3	from asap.scantable import scantable
[1862]	4	from asap.logging import asaplog, asaplog_post_dec
[1153]	5	import matplotlib.axes
[1556]	6	from matplotlib.font_manager import FontProperties
	7	from matplotlib.text import Text
[2535]	8	from matplotlib import _pylab_helpers
[1556]	9
[1317]	10	import re
[203]	11
[2150]	12	def new_asaplot(visible=None,**kwargs):
	13	"""
	14	Returns a new asaplot instance based on the backend settings.
	15	"""
	16	if visible == None:
	17	visible = rcParams['plotter.gui']
	18
	19	backend=matplotlib.get_backend()
	20	if not visible:
	21	from asap.asaplot import asaplot
	22	elif backend == 'TkAgg':
	23	from asap.asaplotgui import asaplotgui as asaplot
	24	elif backend == 'Qt4Agg':
	25	from asap.asaplotgui_qt4 import asaplotgui as asaplot
	26	elif backend == 'GTkAgg':
	27	from asap.asaplotgui_gtk import asaplotgui as asaplot
	28	else:
	29	from asap.asaplot import asaplot
	30	return asaplot(**kwargs)
	31
[203]	32	class asapplotter:
[226]	33	"""
	34	The ASAP plotter.
	35	By default the plotter is set up to plot polarisations
	36	'colour stacked' and scantables across panels.
[1858]	37
	38	.. note::
	39
[226]	40	Currenly it only plots 'spectra' not Tsys or
	41	other variables.
[1858]	42
[226]	43	"""
[1563]	44	def __init__(self, visible=None , **kwargs):
[734]	45	self._visible = rcParams['plotter.gui']
	46	if visible is not None:
	47	self._visible = visible
[2451]	48	self._plotter = None
	49	self._inikwg = kwargs
[710]	50
[554]	51	self._panelling = None
	52	self._stacking = None
	53	self.set_panelling()
	54	self.set_stacking()
[377]	55	self._rows = None
	56	self._cols = None
[525]	57	self._minmaxx = None
	58	self._minmaxy = None
[710]	59	self._datamask = None
[203]	60	self._data = None
[607]	61	self._lmap = None
[226]	62	self._title = None
[257]	63	self._ordinate = None
	64	self._abcissa = None
[709]	65	self._abcunit = None
[920]	66	self._usermask = []
	67	self._maskselection = None
	68	self._selection = selector()
[1023]	69	self._hist = rcParams['plotter.histogram']
[1556]	70	self._fp = FontProperties()
[2037]	71	self._margins = self.set_margin(refresh=False)
[1897]	72	self._offset = None
[1981]	73	self._startrow = 0
	74	self._ipanel = -1
	75	self._panelrows = []
[2053]	76	self._headtext={'string': None, 'textobj': None}
[2451]	77	self._colormap = None
	78	self._linestyles = None
	79	self._legendloc = None
[1023]	80
[920]	81	def _translate(self, instr):
[1910]	82	keys = "s b i p t r".split()
[920]	83	if isinstance(instr, str):
	84	for key in keys:
	85	if instr.lower().startswith(key):
	86	return key
	87	return None
	88
[2535]	89	@asaplog_post_dec
[2451]	90	def _reload_plotter(self):
	91	if self._plotter is not None:
[2535]	92	#if not self._plotter.is_dead:
	93	# # clear lines and axes
	94	# try:
	95	# self._plotter.clear()
	96	# except: # Can't remove when already killed.
	97	# pass
[2451]	98	if self.casabar_exists():
	99	del self._plotter.figmgr.casabar
	100	self._plotter.quit()
	101	del self._plotter
[2535]	102	asaplog.push('Loading new plotter')
[2451]	103	self._plotter = new_asaplot(self._visible,**self._inikwg)
	104	self._plotter.figmgr.casabar=self._new_custombar()
	105	# just to make sure they're set
	106	self._plotter.palette(color=0,colormap=self._colormap,
	107	linestyle=0,linestyles=self._linestyles)
	108	self._plotter.legend(self._legendloc)
[710]	109
[2173]	110	def _new_custombar(self):
[1819]	111	backend=matplotlib.get_backend()
[2168]	112	if not self._visible:
	113	return None
	114	elif backend == "TkAgg":
[2155]	115	from asap.customgui_tkagg import CustomToolbarTkAgg
[1819]	116	return CustomToolbarTkAgg(self)
[2168]	117	elif backend == "Qt4Agg":
	118	from asap.customgui_qt4agg import CustomToolbarQT4Agg
	119	return CustomToolbarQT4Agg(self)
[1995]	120	return None
[1819]	121
[2147]	122	def casabar_exists(self):
	123	if not hasattr(self._plotter.figmgr,'casabar'):
	124	return False
	125	elif self._plotter.figmgr.casabar:
	126	return True
	127	return False
	128
[2453]	129	def _assert_plotter(self,action="status",errmsg=None):
[2451]	130	"""
[2453]	131	Check plot window status. Returns True if plot window is alive.
[2451]	132	Parameters
[2453]	133	action: An action to take if the plotter window is not alive.
	134	['status'\|'reload'\|'halt']
	135	The action 'status' simply returns False if asaplot
	136	is not alive. When action='reload', plot window is
	137	reloaded and the method returns True. Finally, an
	138	error is raised when action='halt'.
[2451]	139	errmsg: An error (warning) message to send to the logger,
[2453]	140	when plot window is not alive.
[2451]	141	"""
[2538]	142	isAlive = (self._plotter is not None) and self._plotter._alive()
[2535]	143	# More tests
[2538]	144	#if isAlive:
	145	# if self._plotter.figmgr:
	146	# figmgr = self._plotter.figmgr
	147	# figid = figmgr.num
	148	# # Make sure figid=0 is what asapplotter expects.
	149	# # It might be already destroied/overridden by matplotlib
	150	# # commands or other plotting methods using asaplot.
	151	# isAlive = _pylab_helpers.Gcf.has_fignum(figid) and \
	152	# (figmgr == \
	153	# _pylab_helpers.Gcf.get_fig_manager(figid))
	154	# else:
	155	# isAlive = False
[2535]	156
	157	if isAlive:
[2451]	158	return True
	159	# Plotter is not alive.
	160	haltmsg = "Plotter window has not yet been loaded or is closed."
	161	if type(errmsg)==str and len(errmsg) > 0:
	162	haltmsg = errmsg
	163
[2453]	164	if action.upper().startswith("R"):
[2451]	165	# reload plotter
	166	self._reload_plotter()
	167	return True
[2453]	168	elif action.upper().startswith("H"):
[2451]	169	# halt
	170	asaplog.push(haltmsg)
	171	asaplog.post("ERROR")
	172	raise RuntimeError(haltmsg)
	173	else:
	174	if errmsg:
	175	asaplog.push(errmsg)
	176	asaplog.post("WARN")
	177	return False
	178
	179
[1862]	180	@asaplog_post_dec
[935]	181	def plot(self, scan=None):
[203]	182	"""
[920]	183	Plot a scantable.
[203]	184	Parameters:
[920]	185	scan: a scantable
[203]	186	Note:
[920]	187	If a scantable was specified in a previous call
[203]	188	to plot, no argument has to be given to 'replot'
[920]	189	NO checking is done that the abcissas of the scantable
[203]	190	are consistent e.g. all 'channel' or all 'velocity' etc.
	191	"""
[2451]	192	if not self._data and not scan:
	193	msg = "Input is not a scantable"
	194	raise TypeError(msg)
[1981]	195	self._startrow = 0
	196	self._ipanel = -1
[2056]	197	self._reset_header()
[2451]	198	self._panelrows = []
	199
[2453]	200	self._assert_plotter(action="reload")
[2147]	201	if self.casabar_exists():
[1984]	202	self._plotter.figmgr.casabar.set_pagecounter(1)
[2451]	203
[600]	204	self._plotter.hold()
[1945]	205	#self._plotter.clear()
[1897]	206	if scan:
	207	self.set_data(scan, refresh=False)
[2451]	208	self._plotter.palette(color=0,colormap=self._colormap,
	209	linestyle=0,linestyles=self._linestyles)
	210	self._plotter.legend(self._legendloc)
[920]	211	self._plot(self._data)
[709]	212	if self._minmaxy is not None:
	213	self._plotter.set_limits(ylim=self._minmaxy)
[2147]	214	if self.casabar_exists(): self._plotter.figmgr.casabar.enable_button()
[203]	215	self._plotter.release()
[1153]	216	self._plotter.tidy()
	217	self._plotter.show(hardrefresh=False)
[203]	218	return
	219
[1572]	220	def gca(self):
[2451]	221	errmsg = "No axis to retun. Need to plot first."
[2453]	222	if not self._assert_plotter(action="status",errmsg=errmsg):
[2451]	223	return None
[1572]	224	return self._plotter.figure.gca()
	225
[1550]	226	def refresh(self):
[1572]	227	"""Do a soft refresh"""
[2451]	228	errmsg = "No figure to re-plot. Need to plot first."
[2453]	229	self._assert_plotter(action="halt",errmsg=errmsg)
[2451]	230
[1550]	231	self._plotter.figure.show()
	232
[1555]	233	def create_mask(self, nwin=1, panel=0, color=None):
[1597]	234	"""
[1927]	235	Interactively define a mask. It retruns a mask that is equivalent to
[1597]	236	the one created manually with scantable.create_mask.
	237	Parameters:
	238	nwin: The number of mask windows to create interactively
	239	default is 1.
	240	panel: Which panel to use for mask selection. This is useful
	241	if different IFs are spread over panels (default 0)
	242	"""
[2451]	243	## this method relies on already plotted figure
[2453]	244	if not self._assert_plotter(action="status") or (self._data is None):
[2451]	245	msg = "Cannot create mask interactively on plot. Can only create mask after plotting."
	246	asaplog.push( msg )
	247	asaplog.post( "ERROR" )
[1555]	248	return []
[1547]	249	outmask = []
[1549]	250	self._plotter.subplot(panel)
	251	xmin, xmax = self._plotter.axes.get_xlim()
[1548]	252	marg = 0.05*(xmax-xmin)
[1549]	253	self._plotter.axes.set_xlim(xmin-marg, xmax+marg)
[1550]	254	self.refresh()
[1695]	255
[1555]	256	def cleanup(lines=False, texts=False, refresh=False):
	257	if lines:
	258	del self._plotter.axes.lines[-1]
	259	if texts:
	260	del self._plotter.axes.texts[-1]
	261	if refresh:
	262	self.refresh()
	263
	264	for w in xrange(nwin):
[1547]	265	wpos = []
[1695]	266	self.text(0.05,1.0, "Add start boundary",
[1555]	267	coords="relative", fontsize=10)
	268	point = self._plotter.get_point()
	269	cleanup(texts=True)
	270	if point is None:
	271	continue
	272	wpos.append(point[0])
[1695]	273	self.axvline(wpos[0], color=color)
[1551]	274	self.text(0.05,1.0, "Add end boundary", coords="relative", fontsize=10)
[1555]	275	point = self._plotter.get_point()
	276	cleanup(texts=True, lines=True)
	277	if point is None:
	278	self.refresh()
	279	continue
	280	wpos.append(point[0])
	281	self.axvspan(wpos[0], wpos[1], alpha=0.1,
	282	edgecolor=color, facecolor=color)
	283	ymin, ymax = self._plotter.axes.get_ylim()
[1547]	284	outmask.append(wpos)
[1153]	285
[1555]	286	self._plotter.axes.set_xlim(xmin, xmax)
	287	self.refresh()
	288	if len(outmask) > 0:
	289	return self._data.create_mask(*outmask)
	290	return []
	291
[1153]	292	# forwards to matplotlib axes
	293	def text(self, args, *kwargs):
[2453]	294	self._assert_plotter(action="reload")
[1547]	295	if kwargs.has_key("interactive"):
	296	if kwargs.pop("interactive"):
	297	pos = self._plotter.get_point()
	298	args = tuple(pos)+args
[1153]	299	self._axes_callback("text", args, *kwargs)
[1547]	300
[1358]	301	text.__doc__ = matplotlib.axes.Axes.text.__doc__
[1559]	302
[1153]	303	def arrow(self, args, *kwargs):
[2453]	304	self._assert_plotter(action="reload")
[1547]	305	if kwargs.has_key("interactive"):
	306	if kwargs.pop("interactive"):
	307	pos = self._plotter.get_region()
	308	dpos = (pos[0][0], pos[0][1],
	309	pos[1][0]-pos[0][0],
	310	pos[1][1] - pos[0][1])
	311	args = dpos + args
[1153]	312	self._axes_callback("arrow", args, *kwargs)
[1547]	313
[1358]	314	arrow.__doc__ = matplotlib.axes.Axes.arrow.__doc__
[1559]	315
	316	def annotate(self, text, xy=None, xytext=None, **kwargs):
[2453]	317	self._assert_plotter(action="reload")
[1559]	318	if kwargs.has_key("interactive"):
	319	if kwargs.pop("interactive"):
	320	xy = self._plotter.get_point()
	321	xytext = self._plotter.get_point()
	322	if not kwargs.has_key("arrowprops"):
	323	kwargs["arrowprops"] = dict(arrowstyle="->")
	324	self._axes_callback("annotate", text, xy, xytext, **kwargs)
	325
	326	annotate.__doc__ = matplotlib.axes.Axes.annotate.__doc__
	327
[1153]	328	def axvline(self, args, *kwargs):
[2453]	329	self._assert_plotter(action="reload")
[1547]	330	if kwargs.has_key("interactive"):
	331	if kwargs.pop("interactive"):
	332	pos = self._plotter.get_point()
	333	args = (pos[0],)+args
[1153]	334	self._axes_callback("axvline", args, *kwargs)
[1559]	335
[1358]	336	axvline.__doc__ = matplotlib.axes.Axes.axvline.__doc__
[1547]	337
[1153]	338	def axhline(self, args, *kwargs):
[2453]	339	self._assert_plotter(action="reload")
[1547]	340	if kwargs.has_key("interactive"):
	341	if kwargs.pop("interactive"):
	342	pos = self._plotter.get_point()
	343	args = (pos[1],)+args
[1153]	344	self._axes_callback("axhline", args, *kwargs)
[1559]	345
[1358]	346	axhline.__doc__ = matplotlib.axes.Axes.axhline.__doc__
[1547]	347
[1153]	348	def axvspan(self, args, *kwargs):
[2453]	349	self._assert_plotter(action="reload")
[1547]	350	if kwargs.has_key("interactive"):
	351	if kwargs.pop("interactive"):
	352	pos = self._plotter.get_region()
	353	dpos = (pos[0][0], pos[1][0])
	354	args = dpos + args
[1153]	355	self._axes_callback("axvspan", args, *kwargs)
	356	# hack to preventy mpl from redrawing the patch
	357	# it seem to convert the patch into lines on every draw.
	358	# This doesn't happen in a test script???
[1547]	359	#del self._plotter.axes.patches[-1]
	360
[1358]	361	axvspan.__doc__ = matplotlib.axes.Axes.axvspan.__doc__
[1232]	362
[1153]	363	def axhspan(self, args, *kwargs):
[2453]	364	self._assert_plotter(action="reload")
[1547]	365	if kwargs.has_key("interactive"):
	366	if kwargs.pop("interactive"):
	367	pos = self._plotter.get_region()
	368	dpos = (pos[0][1], pos[1][1])
	369	args = dpos + args
[1232]	370	self._axes_callback("axhspan", args, *kwargs)
[1153]	371	# hack to preventy mpl from redrawing the patch
	372	# it seem to convert the patch into lines on every draw.
	373	# This doesn't happen in a test script???
[1547]	374	#del self._plotter.axes.patches[-1]
[1559]	375
[1358]	376	axhspan.__doc__ = matplotlib.axes.Axes.axhspan.__doc__
[1153]	377
	378	def _axes_callback(self, axesfunc, args, *kwargs):
[2453]	379	self._assert_plotter(action="reload")
[1153]	380	panel = 0
	381	if kwargs.has_key("panel"):
	382	panel = kwargs.pop("panel")
	383	coords = None
	384	if kwargs.has_key("coords"):
	385	coords = kwargs.pop("coords")
	386	if coords.lower() == 'world':
	387	kwargs["transform"] = self._plotter.axes.transData
	388	elif coords.lower() == 'relative':
	389	kwargs["transform"] = self._plotter.axes.transAxes
	390	self._plotter.subplot(panel)
	391	self._plotter.axes.set_autoscale_on(False)
	392	getattr(self._plotter.axes, axesfunc)(args, *kwargs)
	393	self._plotter.show(False)
	394	self._plotter.axes.set_autoscale_on(True)
	395	# end matplotlib.axes fowarding functions
	396
[1862]	397	@asaplog_post_dec
[1819]	398	def set_data(self, scan, refresh=True):
	399	"""
[1824]	400	Set a scantable to plot.
[1819]	401	Parameters:
	402	scan: a scantable
	403	refresh: True (default) or False. If True, the plot is
[1824]	404	replotted based on the new parameter setting(s).
[1819]	405	Otherwise,the parameter(s) are set without replotting.
	406	Note:
	407	The user specified masks and data selections will be reset
	408	if a new scantable is set. This method should be called before
[1824]	409	setting data selections (set_selection) and/or masks (set_mask).
[1819]	410	"""
	411	from asap import scantable
	412	if isinstance(scan, scantable):
[2604]	413	if (self._data is not None) and (scan != self._data):
	414	del self._data
	415	msg = "A new scantable is set to the plotter. "\
	416	"The masks and data selections are reset."
	417	asaplog.push( msg )
	418	self._data = scan
	419	# reset
	420	self._reset()
[1819]	421	else:
	422	msg = "Input is not a scantable"
	423	raise TypeError(msg)
[1547]	424
[1819]	425	# ranges become invalid when unit changes
	426	if self._abcunit and self._abcunit != self._data.get_unit():
	427	self._minmaxx = None
	428	self._minmaxy = None
	429	self._abcunit = self._data.get_unit()
	430	self._datamask = None
	431	if refresh: self.plot()
	432
[1862]	433	@asaplog_post_dec
[1819]	434	def set_mode(self, stacking=None, panelling=None, refresh=True):
[203]	435	"""
[377]	436	Set the plots look and feel, i.e. what you want to see on the plot.
[203]	437	Parameters:
	438	stacking: tell the plotter which variable to plot
[1217]	439	as line colour overlays (default 'pol')
[203]	440	panelling: tell the plotter which variable to plot
	441	across multiple panels (default 'scan'
[1819]	442	refresh: True (default) or False. If True, the plot is
[1824]	443	replotted based on the new parameter setting(s).
[1819]	444	Otherwise,the parameter(s) are set without replotting.
[203]	445	Note:
	446	Valid modes are:
	447	'beam' 'Beam' 'b': Beams
	448	'if' 'IF' 'i': IFs
	449	'pol' 'Pol' 'p': Polarisations
	450	'scan' 'Scan' 's': Scans
	451	'time' 'Time' 't': Times
[1989]	452	'row' 'Row' 'r': Rows
	453	When either 'stacking' or 'panelling' is set to 'row',
	454	the other parameter setting is ignored.
[203]	455	"""
[753]	456	msg = "Invalid mode"
	457	if not self.set_panelling(panelling) or \
	458	not self.set_stacking(stacking):
[1859]	459	raise TypeError(msg)
[1989]	460	#if self._panelling == 'r':
	461	# self._stacking = '_r'
	462	#if self._stacking == 'r':
	463	# self._panelling = '_r'
[1819]	464	if refresh and self._data: self.plot(self._data)
[203]	465	return
	466
[554]	467	def set_panelling(self, what=None):
[1858]	468	"""Set the 'panelling' mode i.e. which type of spectra should be
	469	spread across different panels.
	470	"""
	471
[554]	472	mode = what
	473	if mode is None:
	474	mode = rcParams['plotter.panelling']
	475	md = self._translate(mode)
[203]	476	if md:
[554]	477	self._panelling = md
[226]	478	self._title = None
[1989]	479	#if md == 'r':
	480	# self._stacking = '_r'
[1981]	481	# you need to reset counters for multi page plotting
	482	self._reset_counters()
[203]	483	return True
	484	return False
	485
[1819]	486	def set_layout(self,rows=None,cols=None,refresh=True):
[377]	487	"""
	488	Set the multi-panel layout, i.e. how many rows and columns plots
	489	are visible.
	490	Parameters:
	491	rows: The number of rows of plots
	492	cols: The number of columns of plots
[1819]	493	refresh: True (default) or False. If True, the plot is
[1824]	494	replotted based on the new parameter setting(s).
[1819]	495	Otherwise,the parameter(s) are set without replotting.
[377]	496	Note:
	497	If no argument is given, the potter reverts to its auto-plot
	498	behaviour.
	499	"""
	500	self._rows = rows
	501	self._cols = cols
[1819]	502	if refresh and self._data: self.plot(self._data)
[377]	503	return
	504
[709]	505	def set_stacking(self, what=None):
[1858]	506	"""Set the 'stacking' mode i.e. which type of spectra should be
	507	overlayed.
	508	"""
[554]	509	mode = what
[709]	510	if mode is None:
	511	mode = rcParams['plotter.stacking']
[554]	512	md = self._translate(mode)
[203]	513	if md:
	514	self._stacking = md
[226]	515	self._lmap = None
[1989]	516	#if md == 'r':
	517	# self._panelling = '_r'
[1981]	518	# you need to reset counters for multi page plotting
	519	self._reset_counters()
[203]	520	return True
	521	return False
	522
[1981]	523	def _reset_counters(self):
	524	self._startrow = 0
	525	self._ipanel = -1
	526	self._panelrows = []
	527
[1897]	528	def set_range(self,xstart=None,xend=None,ystart=None,yend=None,refresh=True, offset=None):
[203]	529	"""
	530	Set the range of interest on the abcissa of the plot
	531	Parameters:
[525]	532	[x,y]start,[x,y]end: The start and end points of the 'zoom' window
[1819]	533	refresh: True (default) or False. If True, the plot is
[1824]	534	replotted based on the new parameter setting(s).
[1819]	535	Otherwise,the parameter(s) are set without replotting.
[1897]	536	offset: shift the abcissa by the given amount. The abcissa label will
	537	have '(relative)' appended to it.
[203]	538	Note:
	539	These become non-sensical when the unit changes.
	540	use plotter.set_range() without parameters to reset
	541
	542	"""
[1897]	543	self._offset = offset
[525]	544	if xstart is None and xend is None:
	545	self._minmaxx = None
[600]	546	else:
	547	self._minmaxx = [xstart,xend]
[525]	548	if ystart is None and yend is None:
	549	self._minmaxy = None
[600]	550	else:
[709]	551	self._minmaxy = [ystart,yend]
[1819]	552	if refresh and self._data: self.plot(self._data)
[203]	553	return
[709]	554
[1819]	555	def set_legend(self, mp=None, fontsize = None, mode = 0, refresh=True):
[203]	556	"""
	557	Specify a mapping for the legend instead of using the default
	558	indices:
	559	Parameters:
[1101]	560	mp: a list of 'strings'. This should have the same length
	561	as the number of elements on the legend and then maps
	562	to the indeces in order. It is possible to uses latex
	563	math expression. These have to be enclosed in r'',
	564	e.g. r'$x^{2}$'
	565	fontsize: The font size of the label (default None)
	566	mode: where to display the legend
	567	Any other value for loc else disables the legend:
[1096]	568	0: auto
	569	1: upper right
	570	2: upper left
	571	3: lower left
	572	4: lower right
	573	5: right
	574	6: center left
	575	7: center right
	576	8: lower center
	577	9: upper center
	578	10: center
[1819]	579	refresh: True (default) or False. If True, the plot is
[1824]	580	replotted based on the new parameter setting(s).
[1819]	581	Otherwise,the parameter(s) are set without replotting.
[203]	582
	583	Example:
[485]	584	If the data has two IFs/rest frequencies with index 0 and 1
[203]	585	for CO and SiO:
	586	plotter.set_stacking('i')
[710]	587	plotter.set_legend(['CO','SiO'])
[203]	588	plotter.plot()
[710]	589	plotter.set_legend([r'$^{12}CO$', r'SiO'])
[203]	590	"""
	591	self._lmap = mp
[2451]	592	#self._plotter.legend(mode)
	593	self._legendloc = mode
[1101]	594	if isinstance(fontsize, int):
	595	from matplotlib import rc as rcp
	596	rcp('legend', fontsize=fontsize)
[1819]	597	if refresh and self._data: self.plot(self._data)
[226]	598	return
	599
[1819]	600	def set_title(self, title=None, fontsize=None, refresh=True):
[710]	601	"""
[2451]	602	Set the title of sub-plots. If multiple sub-plots are plotted,
[710]	603	multiple titles have to be specified.
[1819]	604	Parameters:
[2451]	605	title: a list of titles of sub-plots.
	606	fontsize: a font size of titles (integer)
[1819]	607	refresh: True (default) or False. If True, the plot is
[1824]	608	replotted based on the new parameter setting(s).
[1819]	609	Otherwise,the parameter(s) are set without replotting.
[710]	610	Example:
	611	# two panels are visible on the plotter
[2451]	612	plotter.set_title(['First Panel','Second Panel'])
[710]	613	"""
[226]	614	self._title = title
[1101]	615	if isinstance(fontsize, int):
	616	from matplotlib import rc as rcp
	617	rcp('axes', titlesize=fontsize)
[1819]	618	if refresh and self._data: self.plot(self._data)
[226]	619	return
	620
[1819]	621	def set_ordinate(self, ordinate=None, fontsize=None, refresh=True):
[710]	622	"""
	623	Set the y-axis label of the plot. If multiple panels are plotted,
	624	multiple labels have to be specified.
[1021]	625	Parameters:
	626	ordinate: a list of ordinate labels. None (default) let
	627	data determine the labels
[2451]	628	fontsize: a font size of vertical axis labels (integer)
[1819]	629	refresh: True (default) or False. If True, the plot is
[1824]	630	replotted based on the new parameter setting(s).
[1819]	631	Otherwise,the parameter(s) are set without replotting.
[710]	632	Example:
	633	# two panels are visible on the plotter
[2451]	634	plotter.set_ordinate(['First Y-Axis','Second Y-Axis'])
[710]	635	"""
[257]	636	self._ordinate = ordinate
[1101]	637	if isinstance(fontsize, int):
	638	from matplotlib import rc as rcp
	639	rcp('axes', labelsize=fontsize)
	640	rcp('ytick', labelsize=fontsize)
[1819]	641	if refresh and self._data: self.plot(self._data)
[257]	642	return
	643
[1819]	644	def set_abcissa(self, abcissa=None, fontsize=None, refresh=True):
[710]	645	"""
	646	Set the x-axis label of the plot. If multiple panels are plotted,
	647	multiple labels have to be specified.
[1021]	648	Parameters:
	649	abcissa: a list of abcissa labels. None (default) let
	650	data determine the labels
[2451]	651	fontsize: a font size of horizontal axis labels (integer)
[1819]	652	refresh: True (default) or False. If True, the plot is
[1824]	653	replotted based on the new parameter setting(s).
[1819]	654	Otherwise,the parameter(s) are set without replotting.
[710]	655	Example:
	656	# two panels are visible on the plotter
[2451]	657	plotter.set_ordinate(['First X-Axis','Second X-Axis'])
[710]	658	"""
[257]	659	self._abcissa = abcissa
[1101]	660	if isinstance(fontsize, int):
	661	from matplotlib import rc as rcp
	662	rcp('axes', labelsize=fontsize)
	663	rcp('xtick', labelsize=fontsize)
[1819]	664	if refresh and self._data: self.plot(self._data)
[257]	665	return
	666
[1819]	667	def set_colors(self, colmap, refresh=True):
[377]	668	"""
[1217]	669	Set the colours to be used. The plotter will cycle through
	670	these colours when lines are overlaid (stacking mode).
[1021]	671	Parameters:
[1217]	672	colmap: a list of colour names
[1819]	673	refresh: True (default) or False. If True, the plot is
[1824]	674	replotted based on the new parameter setting(s).
[1819]	675	Otherwise,the parameter(s) are set without replotting.
[710]	676	Example:
[2451]	677	plotter.set_colors('red green blue')
[710]	678	# If for example four lines are overlaid e.g I Q U V
	679	# 'I' will be 'red', 'Q' will be 'green', U will be 'blue'
	680	# and 'V' will be 'red' again.
	681	"""
[2451]	682	#if isinstance(colmap,str):
	683	# colmap = colmap.split()
	684	#self._plotter.palette(0, colormap=colmap)
	685	self._colormap = colmap
[1819]	686	if refresh and self._data: self.plot(self._data)
[710]	687
[1217]	688	# alias for english speakers
	689	set_colours = set_colors
	690
[1819]	691	def set_histogram(self, hist=True, linewidth=None, refresh=True):
[1021]	692	"""
	693	Enable/Disable histogram-like plotting.
	694	Parameters:
	695	hist: True (default) or False. The fisrt default
	696	is taken from the .asaprc setting
	697	plotter.histogram
[2451]	698	linewidth: a line width
[1819]	699	refresh: True (default) or False. If True, the plot is
[1824]	700	replotted based on the new parameter setting(s).
[1819]	701	Otherwise,the parameter(s) are set without replotting.
[1021]	702	"""
[1023]	703	self._hist = hist
[1101]	704	if isinstance(linewidth, float) or isinstance(linewidth, int):
	705	from matplotlib import rc as rcp
	706	rcp('lines', linewidth=linewidth)
[1819]	707	if refresh and self._data: self.plot(self._data)
[1023]	708
[1819]	709	def set_linestyles(self, linestyles=None, linewidth=None, refresh=True):
[710]	710	"""
[734]	711	Set the linestyles to be used. The plotter will cycle through
	712	these linestyles when lines are overlaid (stacking mode) AND
	713	only one color has been set.
[710]	714	Parameters:
[2451]	715	linestyles: a list of linestyles to use.
[710]	716	'line', 'dashed', 'dotted', 'dashdot',
	717	'dashdotdot' and 'dashdashdot' are
	718	possible
[2451]	719	linewidth: a line width
[1819]	720	refresh: True (default) or False. If True, the plot is
[1824]	721	replotted based on the new parameter setting(s).
[1819]	722	Otherwise,the parameter(s) are set without replotting.
[710]	723	Example:
[2451]	724	plotter.set_colors('black')
	725	plotter.set_linestyles('line dashed dotted dashdot')
[710]	726	# If for example four lines are overlaid e.g I Q U V
	727	# 'I' will be 'solid', 'Q' will be 'dashed',
	728	# U will be 'dotted' and 'V' will be 'dashdot'.
	729	"""
[2451]	730	#if isinstance(linestyles,str):
	731	# linestyles = linestyles.split()
	732	#self._plotter.palette(color=0,linestyle=0,linestyles=linestyles)
	733	self._linestyles = linestyles
[1101]	734	if isinstance(linewidth, float) or isinstance(linewidth, int):
	735	from matplotlib import rc as rcp
	736	rcp('lines', linewidth=linewidth)
[1819]	737	if refresh and self._data: self.plot(self._data)
[710]	738
[1819]	739	def set_font(self, refresh=True,**kwargs):
[1101]	740	"""
	741	Set font properties.
	742	Parameters:
	743	family: one of 'sans-serif', 'serif', 'cursive', 'fantasy', 'monospace'
	744	style: one of 'normal' (or 'roman'), 'italic' or 'oblique'
	745	weight: one of 'normal or 'bold'
	746	size: the 'general' font size, individual elements can be adjusted
	747	seperately
[1819]	748	refresh: True (default) or False. If True, the plot is
[1824]	749	replotted based on the new parameter setting(s).
[1819]	750	Otherwise,the parameter(s) are set without replotting.
[1101]	751	"""
	752	from matplotlib import rc as rcp
[1547]	753	fdict = {}
	754	for k,v in kwargs.iteritems():
	755	if v:
	756	fdict[k] = v
[1556]	757	self._fp = FontProperties(**fdict)
[1819]	758	if refresh and self._data: self.plot(self._data)
[1101]	759
[2037]	760	def set_margin(self,margin=[],refresh=True):
[1819]	761	"""
[2037]	762	Set margins between subplots and plot edges.
[1819]	763	Parameters:
[2037]	764	margin: a list of margins in figure coordinate (0-1),
[1824]	765	i.e., fraction of the figure width or height.
[1819]	766	The order of elements should be:
	767	[left, bottom, right, top, horizontal space btw panels,
[1824]	768	vertical space btw panels].
[1819]	769	refresh: True (default) or False. If True, the plot is
[1824]	770	replotted based on the new parameter setting(s).
[1819]	771	Otherwise,the parameter(s) are set without replotting.
	772	Note
[2037]	773	* When margin is not specified, the values are reset to the defaults
[1819]	774	of matplotlib.
[1824]	775	* If any element is set to be None, the current value is adopted.
[1819]	776	"""
[2037]	777	if margin == []: self._margins=self._reset_margin()
[1824]	778	else:
[2037]	779	self._margins=[None]*6
	780	self._margins[0:len(margin)]=margin
	781	#print "panel margin set to ",self._margins
[1819]	782	if refresh and self._data: self.plot(self._data)
	783
[2037]	784	def _reset_margin(self):
[1819]	785	ks=map(lambda x: 'figure.subplot.'+x,
	786	['left','bottom','right','top','hspace','wspace'])
	787	return map(matplotlib.rcParams.get,ks)
	788
[1259]	789	def plot_lines(self, linecat=None, doppler=0.0, deltachan=10, rotate=90.0,
[1146]	790	location=None):
	791	"""
[1158]	792	Plot a line catalog.
	793	Parameters:
	794	linecat: the linecatalog to plot
[1168]	795	doppler: the velocity shift to apply to the frequencies
[1158]	796	deltachan: the number of channels to include each side of the
	797	line to determine a local maximum/minimum
[1927]	798	rotate: the rotation (in degrees) for the text label (default 90.0)
[1158]	799	location: the location of the line annotation from the 'top',
	800	'bottom' or alternate (None - the default)
[1165]	801	Notes:
	802	If the spectrum is flagged no line will be drawn in that location.
[1146]	803	"""
[2451]	804	errmsg = "Cannot plot spectral lines. Need to plot scantable first."
[2453]	805	self._assert_plotter(action="halt",errmsg=errmsg)
[1259]	806	if not self._data:
	807	raise RuntimeError("No scantable has been plotted yet.")
[1146]	808	from asap._asap import linecatalog
[1259]	809	if not isinstance(linecat, linecatalog):
	810	raise ValueError("'linecat' isn't of type linecatalog.")
	811	if not self._data.get_unit().endswith("Hz"):
	812	raise RuntimeError("Can only overlay linecatalogs when data is in frequency.")
[1739]	813	from numpy import ma
[1146]	814	for j in range(len(self._plotter.subplots)):
	815	self._plotter.subplot(j)
	816	lims = self._plotter.axes.get_xlim()
[1153]	817	for row in range(linecat.nrow()):
[1259]	818	# get_frequency returns MHz
	819	base = { "GHz": 1000.0, "MHz": 1.0, "Hz": 1.0e-6 }
	820	restf = linecat.get_frequency(row)/base[self._data.get_unit()]
[1165]	821	c = 299792.458
[1174]	822	freq = restf*(1.0-doppler/c)
[1146]	823	if lims[0] < freq < lims[1]:
	824	if location is None:
	825	loc = 'bottom'
[1153]	826	if row%2: loc='top'
[1146]	827	else: loc = location
[1153]	828	maxys = []
	829	for line in self._plotter.axes.lines:
	830	v = line._x
	831	asc = v[0] < v[-1]
	832
	833	idx = None
	834	if not asc:
	835	if v[len(v)-1] <= freq <= v[0]:
	836	i = len(v)-1
	837	while i>=0 and v[i] < freq:
	838	idx = i
	839	i-=1
	840	else:
	841	if v[0] <= freq <= v[len(v)-1]:
	842	i = 0
	843	while i<len(v) and v[i] < freq:
	844	idx = i
	845	i+=1
	846	if idx is not None:
	847	lower = idx - deltachan
	848	upper = idx + deltachan
	849	if lower < 0: lower = 0
	850	if upper > len(v): upper = len(v)
	851	s = slice(lower, upper)
[1167]	852	y = line._y[s]
[1165]	853	maxy = ma.maximum(y)
	854	if isinstance( maxy, float):
	855	maxys.append(maxy)
[1164]	856	if len(maxys):
	857	peak = max(maxys)
[1165]	858	if peak > self._plotter.axes.get_ylim()[1]:
	859	loc = 'bottom'
[1164]	860	else:
	861	continue
[1157]	862	self._plotter.vline_with_label(freq, peak,
	863	linecat.get_name(row),
	864	location=loc, rotate=rotate)
[1153]	865	self._plotter.show(hardrefresh=False)
[1146]	866
[1153]	867
[710]	868	def save(self, filename=None, orientation=None, dpi=None):
	869	"""
[1927]	870	Save the plot to a file. The known formats are 'png', 'ps', 'eps'.
[377]	871	Parameters:
	872	filename: The name of the output file. This is optional
	873	and autodetects the image format from the file
	874	suffix. If non filename is specified a file
	875	called 'yyyymmdd_hhmmss.png' is created in the
	876	current directory.
[709]	877	orientation: optional parameter for postscript only (not eps).
	878	'landscape', 'portrait' or None (default) are valid.
	879	If None is choosen for 'ps' output, the plot is
	880	automatically oriented to fill the page.
[710]	881	dpi: The dpi of the output non-ps plot
[377]	882	"""
[2451]	883	errmsg = "Cannot save figure. Need to plot first."
[2453]	884	self._assert_plotter(action="halt",errmsg=errmsg)
[2451]	885
[709]	886	self._plotter.save(filename,orientation,dpi)
[377]	887	return
[709]	888
[1862]	889	@asaplog_post_dec
[1819]	890	def set_mask(self, mask=None, selection=None, refresh=True):
[525]	891	"""
[734]	892	Set a plotting mask for a specific polarization.
[2451]	893	This is useful for masking out 'noise' Pangle outside a source.
[734]	894	Parameters:
[920]	895	mask: a mask from scantable.create_mask
	896	selection: the spectra to apply the mask to.
[1819]	897	refresh: True (default) or False. If True, the plot is
[1824]	898	replotted based on the new parameter setting(s).
[1819]	899	Otherwise,the parameter(s) are set without replotting.
[734]	900	Example:
[920]	901	select = selector()
[2451]	902	select.setpolstrings('Pangle')
[920]	903	plotter.set_mask(mymask, select)
[734]	904	"""
[710]	905	if not self._data:
[920]	906	msg = "Can only set mask after a first call to plot()"
[1859]	907	raise RuntimeError(msg)
[920]	908	if len(mask):
	909	if isinstance(mask, list) or isinstance(mask, tuple):
	910	self._usermask = array(mask)
[710]	911	else:
[920]	912	self._usermask = mask
	913	if mask is None and selection is None:
	914	self._usermask = []
	915	self._maskselection = None
	916	if isinstance(selection, selector):
[947]	917	self._maskselection = {'b': selection.get_beams(),
	918	's': selection.get_scans(),
	919	'i': selection.get_ifs(),
	920	'p': selection.get_pols(),
[920]	921	't': [] }
[710]	922	else:
[920]	923	self._maskselection = None
[1819]	924	if refresh: self.plot(self._data)
[710]	925
[709]	926	def _slice_indeces(self, data):
	927	mn = self._minmaxx[0]
	928	mx = self._minmaxx[1]
	929	asc = data[0] < data[-1]
	930	start=0
	931	end = len(data)-1
	932	inc = 1
	933	if not asc:
	934	start = len(data)-1
	935	end = 0
	936	inc = -1
	937	# find min index
[1819]	938	#while start > 0 and data[start] < mn:
	939	# start+= inc
	940	minind=start
	941	for ind in xrange(start,end+inc,inc):
	942	if data[ind] > mn: break
	943	minind=ind
[709]	944	# find max index
[1819]	945	#while end > 0 and data[end] > mx:
	946	# end-=inc
	947	#if end > 0: end +=1
	948	maxind=end
	949	for ind in xrange(end,start-inc,-inc):
	950	if data[ind] < mx: break
	951	maxind=ind
	952	start=minind
	953	end=maxind
[709]	954	if start > end:
[1819]	955	return end,start+1
	956	elif start < end:
	957	return start,end+1
	958	else:
	959	return start,end
[709]	960
[710]	961	def _reset(self):
[920]	962	self._usermask = []
[710]	963	self._usermaskspectra = None
[1897]	964	self._offset = None
[920]	965	self.set_selection(None, False)
[2051]	966	self._reset_header()
[920]	967
[2051]	968	def _reset_header(self):
[2053]	969	self._headtext={'string': None, 'textobj': None}
[2051]	970
[920]	971	def _plot(self, scan):
[947]	972	savesel = scan.get_selection()
	973	sel = savesel + self._selection
[1910]	974	order = self._get_sortstring([self._panelling,self._stacking])
	975	if order:
	976	sel.set_order(order)
[947]	977	scan.set_selection(sel)
[920]	978	d = {'b': scan.getbeam, 's': scan.getscan,
[1949]	979	'i': scan.getif, 'p': scan.getpol, 't': scan.get_time,
[1989]	980	'r': int}#, '_r': int}
[920]	981
[2650]	982	polmodes = dict(zip(sel.get_pols(), sel.get_poltypes()))
[1148]	983	# this returns either a tuple of numbers or a length (ncycles)
	984	# convert this into lengths
	985	n0,nstack0 = self._get_selected_n(scan)
	986	if isinstance(n0, int): n = n0
[1175]	987	else: n = len(n0)
[1148]	988	if isinstance(nstack0, int): nstack = nstack0
[1175]	989	else: nstack = len(nstack0)
[1989]	990	# In case of row stacking
	991	rowstack = False
	992	titlemode = self._panelling
	993	if self._stacking == "r" and self._panelling != "r":
	994	rowstack = True
	995	titlemode = '_r'
[1913]	996	nptot = n
[1582]	997	maxpanel, maxstack = 16,16
[1913]	998	if nstack > maxstack:
	999	msg ="Scan to be overlayed contains more than %d selections.\n" \
	1000	"Selecting first %d selections..." % (maxstack, maxstack)
[920]	1001	asaplog.push(msg)
[1861]	1002	asaplog.post('WARN')
[998]	1003	nstack = min(nstack,maxstack)
[2038]	1004	#n = min(n-self._ipanel-1,maxpanel)
	1005	n = n-self._ipanel-1
[2011]	1006
	1007	ganged = False
[920]	1008	if n > 1:
	1009	ganged = rcParams['plotter.ganged']
[1819]	1010	if self._panelling == 'i':
	1011	ganged = False
[920]	1012	if self._rows and self._cols:
	1013	n = min(n,self._rows*self._cols)
	1014	self._plotter.set_panels(rows=self._rows,cols=self._cols,
[2650]	1015	nplots=n,margin=self._margins,
	1016	ganged=ganged)
[920]	1017	else:
[2038]	1018	n = min(n,maxpanel)
[2650]	1019	self._plotter.set_panels(rows=n,cols=0,nplots=n,
	1020	margin=self._margins,ganged=ganged)
[920]	1021	else:
[2037]	1022	self._plotter.set_panels(margin=self._margins)
[1913]	1023	#r = 0
[1981]	1024	r = self._startrow
[920]	1025	nr = scan.nrow()
	1026	a0,b0 = -1,-1
	1027	allxlim = []
[1018]	1028	allylim = []
[1981]	1029	#newpanel=True
	1030	newpanel=False
[920]	1031	panelcount,stackcount = 0,0
[1981]	1032	# If this is not the first page
	1033	if r > 0:
	1034	# panelling value of the prev page
	1035	a0 = d[self._panelling](r-1)
	1036	# set the initial stackcount large not to plot
	1037	# the start row automatically
	1038	stackcount = nstack
	1039
[1002]	1040	while r < nr:
[920]	1041	a = d[self._panelling](r)
	1042	b = d[self._stacking](r)
	1043	if a > a0 and panelcount < n:
	1044	if n > 1:
	1045	self._plotter.subplot(panelcount)
	1046	self._plotter.palette(0)
	1047	#title
	1048	xlab = self._abcissa and self._abcissa[panelcount] \
	1049	or scan._getabcissalabel()
[1897]	1050	if self._offset and not self._abcissa:
	1051	xlab += " (relative)"
[920]	1052	ylab = self._ordinate and self._ordinate[panelcount] \
	1053	or scan._get_ordinate_label()
[1547]	1054	self._plotter.set_axes('xlabel', xlab)
	1055	self._plotter.set_axes('ylabel', ylab)
[1989]	1056	#lbl = self._get_label(scan, r, self._panelling, self._title)
	1057	lbl = self._get_label(scan, r, titlemode, self._title)
[920]	1058	if isinstance(lbl, list) or isinstance(lbl, tuple):
	1059	if 0 <= panelcount < len(lbl):
	1060	lbl = lbl[panelcount]
	1061	else:
	1062	# get default label
[1989]	1063	#lbl = self._get_label(scan, r, self._panelling, None)
	1064	lbl = self._get_label(scan, r, titlemode, None)
[920]	1065	self._plotter.set_axes('title',lbl)
	1066	newpanel = True
[1913]	1067	stackcount = 0
[920]	1068	panelcount += 1
[1981]	1069	# save the start row to plot this panel for future revisit.
	1070	if self._panelling != 'r' and \
	1071	len(self._panelrows) < self._ipanel+1+panelcount:
	1072	self._panelrows += [r]
	1073
[1944]	1074	#if (b > b0 or newpanel) and stackcount < nstack:
[2650]	1075	if stackcount < nstack and (newpanel or \
	1076	rowstack or (a == a0 and b > b0)):
[920]	1077	y = []
	1078	if len(polmodes):
	1079	y = scan._getspectrum(r, polmodes[scan.getpol(r)])
	1080	else:
	1081	y = scan._getspectrum(r)
[1995]	1082	# flag application
	1083	mr = scan._getflagrow(r)
[1739]	1084	from numpy import ma, array
[1995]	1085	if mr:
	1086	y = ma.masked_array(y,mask=mr)
	1087	else:
	1088	m = scan._getmask(r)
	1089	from numpy import logical_not, logical_and
	1090	if self._maskselection and len(self._usermask) == len(m):
[2277]	1091	if d[self._stacking](r) in self._maskselection[self._stacking]:
[1995]	1092	m = logical_and(m, self._usermask)
[2277]	1093	y = ma.masked_array(y,mask=logical_not(array(m,copy=False)))
[1995]	1094
[1897]	1095	x = array(scan._getabcissa(r))
	1096	if self._offset:
	1097	x += self._offset
[920]	1098	if self._minmaxx is not None:
	1099	s,e = self._slice_indeces(x)
	1100	x = x[s:e]
	1101	y = y[s:e]
[1096]	1102	if len(x) > 1024 and rcParams['plotter.decimate']:
	1103	fac = len(x)/1024
[920]	1104	x = x[::fac]
	1105	y = y[::fac]
	1106	llbl = self._get_label(scan, r, self._stacking, self._lmap)
	1107	if isinstance(llbl, list) or isinstance(llbl, tuple):
	1108	if 0 <= stackcount < len(llbl):
	1109	# use user label
	1110	llbl = llbl[stackcount]
	1111	else:
	1112	# get default label
	1113	llbl = self._get_label(scan, r, self._stacking, None)
	1114	self._plotter.set_line(label=llbl)
[1023]	1115	plotit = self._plotter.plot
	1116	if self._hist: plotit = self._plotter.hist
[1995]	1117	if len(x) > 0 and not mr:
[1146]	1118	plotit(x,y)
	1119	xlim= self._minmaxx or [min(x),max(x)]
	1120	allxlim += xlim
	1121	ylim= self._minmaxy or [ma.minimum(y),ma.maximum(y)]
	1122	allylim += ylim
[1819]	1123	else:
	1124	xlim = self._minmaxx or []
	1125	allxlim += xlim
	1126	ylim= self._minmaxy or []
	1127	allylim += ylim
[920]	1128	stackcount += 1
[1981]	1129	a0=a
	1130	b0=b
[920]	1131	# last in colour stack -> autoscale x
[1819]	1132	if stackcount == nstack and len(allxlim) > 0:
[920]	1133	allxlim.sort()
[1819]	1134	self._plotter.subplots[panelcount-1]['axes'].set_xlim([allxlim[0],allxlim[-1]])
[1989]	1135	if ganged:
	1136	allxlim = [allxlim[0],allxlim[-1]]
	1137	else:
	1138	# clear
	1139	allxlim =[]
[920]	1140
	1141	newpanel = False
[1981]	1142	#a0=a
	1143	#b0=b
[920]	1144	# ignore following rows
[1981]	1145	if (panelcount == n and stackcount == nstack) or (r == nr-1):
[1018]	1146	# last panel -> autoscale y if ganged
[1989]	1147	#if rcParams['plotter.ganged'] and len(allylim) > 0:
	1148	if ganged and len(allylim) > 0:
[1018]	1149	allylim.sort()
	1150	self._plotter.set_limits(ylim=[allylim[0],allylim[-1]])
[998]	1151	break
[920]	1152	r+=1 # next row
[1981]	1153
	1154	# save the current counter for multi-page plotting
	1155	self._startrow = r+1
	1156	self._ipanel += panelcount
[2147]	1157	if self.casabar_exists():
[1981]	1158	if self._ipanel >= nptot-1:
[1913]	1159	self._plotter.figmgr.casabar.disable_next()
	1160	else:
	1161	self._plotter.figmgr.casabar.enable_next()
[1981]	1162	if self._ipanel + 1 - panelcount > 0:
	1163	self._plotter.figmgr.casabar.enable_prev()
	1164	else:
	1165	self._plotter.figmgr.casabar.disable_prev()
	1166
[947]	1167	#reset the selector to the scantable's original
	1168	scan.set_selection(savesel)
[1824]	1169
[1819]	1170	#temporary switch-off for older matplotlib
	1171	#if self._fp is not None:
	1172	if self._fp is not None and getattr(self._plotter.figure,'findobj',False):
[1556]	1173	for o in self._plotter.figure.findobj(Text):
	1174	o.set_fontproperties(self._fp)
[920]	1175
[1910]	1176	def _get_sortstring(self, lorders):
	1177	d0 = {'s': 'SCANNO', 'b': 'BEAMNO', 'i':'IFNO',
	1178	'p': 'POLNO', 'c': 'CYCLENO', 't' : 'TIME', 'r':None, '_r':None }
[1944]	1179	if not (type(lorders) == list) and not (type(lorders) == tuple):
[1910]	1180	return None
	1181	if len(lorders) > 0:
	1182	lsorts = []
	1183	for order in lorders:
[1989]	1184	if order == "r":
	1185	# don't sort if row panelling/stacking
	1186	return None
[1910]	1187	ssort = d0[order]
	1188	if ssort:
	1189	lsorts.append(ssort)
	1190	return lsorts
	1191	return None
	1192
[1582]	1193	def set_selection(self, selection=None, refresh=True, **kw):
[1819]	1194	"""
	1195	Parameters:
	1196	selection: a selector object (default unset the selection)
	1197	refresh: True (default) or False. If True, the plot is
[1824]	1198	replotted based on the new parameter setting(s).
[1819]	1199	Otherwise,the parameter(s) are set without replotting.
	1200	"""
[1582]	1201	if selection is None:
	1202	# reset
	1203	if len(kw) == 0:
	1204	self._selection = selector()
	1205	else:
	1206	# try keywords
	1207	for k in kw:
	1208	if k not in selector.fields:
	1209	raise KeyError("Invalid selection key '%s', valid keys are %s" % (k, selector.fields))
	1210	self._selection = selector(**kw)
	1211	elif isinstance(selection, selector):
	1212	self._selection = selection
	1213	else:
	1214	raise TypeError("'selection' is not of type selector")
	1215
[1910]	1216	order = self._get_sortstring([self._panelling,self._stacking])
	1217	if order:
	1218	self._selection.set_order(order)
[2650]	1219	if refresh and self._data:
	1220	self.plot()
[920]	1221
	1222	def _get_selected_n(self, scan):
[1148]	1223	d1 = {'b': scan.getbeamnos, 's': scan.getscannos,
[1910]	1224	'i': scan.getifnos, 'p': scan.getpolnos, 't': scan.ncycle,
[1989]	1225	'r': scan.nrow}#, '_r': False}
[1148]	1226	d2 = { 'b': self._selection.get_beams(),
	1227	's': self._selection.get_scans(),
	1228	'i': self._selection.get_ifs(),
	1229	'p': self._selection.get_pols(),
[1910]	1230	't': self._selection.get_cycles(),
[1989]	1231	'r': False}#, '_r': 1}
[920]	1232	n = d2[self._panelling] or d1[self._panelling]()
	1233	nstack = d2[self._stacking] or d1[self._stacking]()
[1989]	1234	# handle row panelling/stacking
	1235	if self._panelling == 'r':
	1236	nstack = 1
	1237	elif self._stacking == 'r':
	1238	n = 1
[920]	1239	return n,nstack
	1240
	1241	def _get_label(self, scan, row, mode, userlabel=None):
[1153]	1242	if isinstance(userlabel, list) and len(userlabel) == 0:
	1243	userlabel = " "
[947]	1244	pms = dict(zip(self._selection.get_pols(),self._selection.get_poltypes()))
[920]	1245	if len(pms):
	1246	poleval = scan._getpollabel(scan.getpol(row),pms[scan.getpol(row)])
	1247	else:
	1248	poleval = scan._getpollabel(scan.getpol(row),scan.poltype())
	1249	d = {'b': "Beam "+str(scan.getbeam(row)),
[1819]	1250	#'s': scan._getsourcename(row),
	1251	's': "Scan "+str(scan.getscan(row))+\
	1252	" ("+str(scan._getsourcename(row))+")",
[920]	1253	'i': "IF"+str(scan.getif(row)),
[964]	1254	'p': poleval,
[1910]	1255	't': str(scan.get_time(row)),
	1256	'r': "row "+str(row),
[1913]	1257	#'_r': str(scan.get_time(row))+",\nIF"+str(scan.getif(row))+", "+poleval+", Beam"+str(scan.getbeam(row)) }
	1258	'_r': "" }
[920]	1259	return userlabel or d[mode]
[1153]	1260
[1819]	1261	def plotazel(self, scan=None, outfile=None):
[1391]	1262	"""
[1696]	1263	plot azimuth and elevation versus time of a scantable
[1391]	1264	"""
[1923]	1265	visible = rcParams['plotter.gui']
[1696]	1266	from matplotlib import pylab as PL
[2586]	1267	from matplotlib.dates import DateFormatter
	1268	from pytz import timezone
[1696]	1269	from matplotlib.dates import HourLocator, MinuteLocator,SecondLocator, DayLocator
[1391]	1270	from matplotlib.ticker import MultipleLocator
[1739]	1271	from numpy import array, pi
[1923]	1272	if not visible or not self._visible:
	1273	PL.ioff()
	1274	from matplotlib.backends.backend_agg import FigureCanvasAgg
	1275	PL.gcf().canvas.switch_backends(FigureCanvasAgg)
[1819]	1276	self._data = scan
[1556]	1277	dates = self._data.get_time(asdatetime=True)
[1391]	1278	t = PL.date2num(dates)
	1279	tz = timezone('UTC')
	1280	PL.cla()
	1281	PL.ioff()
	1282	PL.clf()
[2037]	1283	# Adjust subplot margins
[2576]	1284	if not self._margins or len(self._margins) != 6:
[2037]	1285	self.set_margin(refresh=False)
	1286	lef, bot, rig, top, wsp, hsp = self._margins
[1819]	1287	PL.gcf().subplots_adjust(left=lef,bottom=bot,right=rig,top=top,
	1288	wspace=wsp,hspace=hsp)
[1824]	1289
[1391]	1290	tdel = max(t) - min(t)
	1291	ax = PL.subplot(2,1,1)
	1292	el = array(self._data.get_elevation())*180./pi
	1293	PL.ylabel('El [deg.]')
	1294	dstr = dates[0].strftime('%Y/%m/%d')
	1295	if tdel > 1.0:
	1296	dstr2 = dates[len(dates)-1].strftime('%Y/%m/%d')
	1297	dstr = dstr + " - " + dstr2
	1298	majloc = DayLocator()
	1299	minloc = HourLocator(range(0,23,12))
	1300	timefmt = DateFormatter("%b%d")
[1696]	1301	elif tdel > 24./60.:
	1302	timefmt = DateFormatter('%H:%M')
	1303	majloc = HourLocator()
	1304	minloc = MinuteLocator(30)
[1391]	1305	else:
[1696]	1306	timefmt = DateFormatter('%H:%M')
	1307	majloc = MinuteLocator(interval=5)
	1308	minloc = SecondLocator(30)
	1309
[1391]	1310	PL.title(dstr)
[1819]	1311	if tdel == 0.0:
	1312	th = (t - PL.floor(t))*24.0
	1313	PL.plot(th,el,'o',markersize=2, markerfacecolor='b', markeredgecolor='b')
	1314	else:
	1315	PL.plot_date(t,el,'o', markersize=2, markerfacecolor='b', markeredgecolor='b',tz=tz)
	1316	#ax.grid(True)
	1317	ax.xaxis.set_major_formatter(timefmt)
	1318	ax.xaxis.set_major_locator(majloc)
	1319	ax.xaxis.set_minor_locator(minloc)
[1391]	1320	ax.yaxis.grid(True)
[1819]	1321	yloc = MultipleLocator(30)
	1322	ax.set_ylim(0,90)
	1323	ax.yaxis.set_major_locator(yloc)
[1391]	1324	if tdel > 1.0:
	1325	labels = ax.get_xticklabels()
	1326	# PL.setp(labels, fontsize=10, rotation=45)
	1327	PL.setp(labels, fontsize=10)
[1819]	1328
[1391]	1329	# Az plot
	1330	az = array(self._data.get_azimuth())*180./pi
	1331	if min(az) < 0:
	1332	for irow in range(len(az)):
	1333	if az[irow] < 0: az[irow] += 360.0
	1334
[1819]	1335	ax2 = PL.subplot(2,1,2)
	1336	#PL.xlabel('Time (UT [hour])')
	1337	PL.ylabel('Az [deg.]')
	1338	if tdel == 0.0:
	1339	PL.plot(th,az,'o',markersize=2, markeredgecolor='b',markerfacecolor='b')
	1340	else:
	1341	PL.plot_date(t,az,'o', markersize=2,markeredgecolor='b',markerfacecolor='b',tz=tz)
	1342	ax2.xaxis.set_major_formatter(timefmt)
	1343	ax2.xaxis.set_major_locator(majloc)
	1344	ax2.xaxis.set_minor_locator(minloc)
	1345	#ax2.grid(True)
	1346	ax2.set_ylim(0,360)
[1696]	1347	ax2.yaxis.grid(True)
[1819]	1348	#hfmt = DateFormatter('%H')
	1349	#hloc = HourLocator()
	1350	yloc = MultipleLocator(60)
	1351	ax2.yaxis.set_major_locator(yloc)
	1352	if tdel > 1.0:
	1353	labels = ax2.get_xticklabels()
	1354	PL.setp(labels, fontsize=10)
	1355	PL.xlabel('Time (UT [day])')
	1356	else:
	1357	PL.xlabel('Time (UT [hour])')
	1358
[1391]	1359	PL.ion()
	1360	PL.draw()
[2416]	1361	if matplotlib.get_backend() == 'Qt4Agg': PL.gcf().show()
[2576]	1362	if (outfile is not None):
	1363	PL.savefig(outfile)
[1391]	1364
[2693]	1365
	1366	def plotpointing2(self, scan=None, colorby='', showline=False, projection=''):
	1367	"""
	1368	plot telescope pointings
	1369	Parameters:
	1370	infile : input filename or scantable instance
	1371	colorby : change color by either
	1372	'type'(source type)\|'scan'\|'if'\|'pol'\|'beam'
	1373	showline : show dotted line
	1374	projection : projection type either
	1375	''(no projection [deg])\|'coord'(not implemented)
	1376	"""
	1377	from numpy import array, pi
	1378	from asap import scantable
	1379	# check for scantable
	1380	if isinstance(scan, scantable):
	1381	if self._data is not None:
	1382	if scan != self._data:
	1383	self._data = scan
	1384	# reset
	1385	self._reset()
	1386	else:
	1387	self._data = scan
	1388	self._reset()
	1389	if not self._data:
	1390	msg = "Input is not a scantable"
	1391	raise TypeError(msg)
	1392	# check for color mode
	1393	validtypes=['type','scan','if','pol', 'beam']
	1394	stype = None
	1395	if (colorby in validtypes):
	1396	stype = colorby[0]
	1397	elif len(colorby) > 0:
	1398	msg = "Invalid choice of 'colorby' (choices: %s)" % str(validtypes)
	1399	raise ValueError(msg)
	1400	self._assert_plotter(action="reload")
	1401	self._plotter.hold()
	1402	if self.casabar_exists(): self._plotter.figmgr.casabar.disable_button()
	1403	# for now, only one plot
	1404	self._plotter.set_panels(rows=1,cols=1)
	1405	# first panel
	1406	self._plotter.subplot(0)
	1407	# first color and linestyles
	1408	self._plotter.palette(0)
	1409	self.gca().set_aspect('equal')
	1410	basesel = scan.get_selection()
	1411	marker = "+"
	1412	if showline:
	1413	basesel.set_order(["TIME"])
	1414	scan.set_selection(basesel)
	1415	if not (stype in ["t", "s"]):
	1416	marker = "+:"
	1417	if not stype:
	1418	selIds = [""] # cheating
	1419	sellab = "all points"
	1420	elif stype == 't':
	1421	selIds = range(15)
	1422	sellab = "src type "
	1423	else:
	1424	selIds = getattr(self._data,'get'+colorby+'nos')()
	1425	sellab = colorby.upper()
	1426	selFunc = "set_"+colorby+"s"
	1427	for idx in selIds:
	1428	sel = selector() + basesel
	1429	if stype:
	1430	bid = getattr(basesel,'get_'+colorby+"s")()
	1431	if (len(bid) > 0) and (not idx in bid):
	1432	# base selection doesn't contain idx
	1433	# Note summation of selector is logical sum if
	1434	continue
	1435	getattr(sel, selFunc)([idx])
	1436	if not sel.is_empty():
	1437	try:
	1438	self._data.set_selection(sel)
	1439	except RuntimeError, instance:
	1440	if stype == 't' and str(instance).startswith("Selection contains no data."):
	1441	continue
	1442	else:
	1443	self._data.set_selection(basesel)
	1444	raise RuntimeError, instance
	1445	if self._data.nrow() == 0:
	1446	self._data.set_selection(basesel)
	1447	continue
	1448	print "Plotting direction of %s = %s" % (colorby, str(idx))
	1449	dir = array(self._data.get_directionval()).transpose()
	1450	ra = dir[0]*180./pi
	1451	dec = dir[1]*180./pi
	1452	self._plotter.set_line(label=(sellab+str(idx)))
	1453	self._plotter.plot(ra,dec,marker)
	1454
	1455	# restore original selection
	1456	self._data.set_selection(basesel)
	1457	# need to plot scan pattern explicitly
	1458	if showline and (stype in ["t", "s"]):
	1459	dir = array(self._data.get_directionval()).transpose()
	1460	ra = dir[0]*180./pi
	1461	dec = dir[1]*180./pi
	1462	self._plotter.set_line(label="scan pattern")
	1463	self._plotter.plot(ra,dec,":")
	1464
	1465	xlab = 'RA [deg.]'
	1466	ylab = 'Declination [deg.]'
	1467	self._plotter.set_axes('xlabel', xlab)
	1468	self._plotter.set_axes('ylabel', ylab)
	1469	self._plotter.set_axes('title', 'Telescope pointings')
	1470	if stype: self._plotter.legend(self._legendloc)
	1471	else: self._plotter.legend(None)
	1472	# reverse x-axis
	1473	xmin, xmax = self.gca().get_xlim()
	1474	self._plotter.set_limits(xlim=[xmax,xmin])
	1475
	1476	self._plotter.release()
	1477	self._plotter.show(hardrefresh=False)
	1478	return
	1479
[1819]	1480	def plotpointing(self, scan=None, outfile=None):
[1391]	1481	"""
	1482	plot telescope pointings
	1483	"""
[1923]	1484	visible = rcParams['plotter.gui']
[1696]	1485	from matplotlib import pylab as PL
[1819]	1486	from numpy import array, pi
[1923]	1487	if not visible or not self._visible:
	1488	PL.ioff()
	1489	from matplotlib.backends.backend_agg import FigureCanvasAgg
	1490	PL.gcf().canvas.switch_backends(FigureCanvasAgg)
[1819]	1491	self._data = scan
[1391]	1492	dir = array(self._data.get_directionval()).transpose()
	1493	ra = dir[0]*180./pi
	1494	dec = dir[1]*180./pi
	1495	PL.cla()
[1819]	1496	#PL.ioff()
[1391]	1497	PL.clf()
[2037]	1498	# Adjust subplot margins
[2576]	1499	if not self._margins or len(self._margins) != 6:
[2037]	1500	self.set_margin(refresh=False)
	1501	lef, bot, rig, top, wsp, hsp = self._margins
[1819]	1502	PL.gcf().subplots_adjust(left=lef,bottom=bot,right=rig,top=top,
	1503	wspace=wsp,hspace=hsp)
	1504	ax = PL.gca()
	1505	#ax = PL.axes([0.1,0.1,0.8,0.8])
	1506	#ax = PL.axes([0.1,0.1,0.8,0.8])
[1391]	1507	ax.set_aspect('equal')
[1696]	1508	PL.plot(ra, dec, 'b,')
[1391]	1509	PL.xlabel('RA [deg.]')
	1510	PL.ylabel('Declination [deg.]')
	1511	PL.title('Telescope pointings')
	1512	[xmin,xmax,ymin,ymax] = PL.axis()
	1513	PL.axis([xmax,xmin,ymin,ymax])
[2416]	1514	PL.ion()
[1391]	1515	PL.draw()
[2416]	1516	if matplotlib.get_backend() == 'Qt4Agg': PL.gcf().show()
[2576]	1517	if (outfile is not None):
	1518	PL.savefig(outfile)
[1819]	1519
	1520	# plot total power data
	1521	# plotting in time is not yet implemented..
[1862]	1522	@asaplog_post_dec
[2576]	1523	def plottp(self, scan=None):
[1819]	1524	from asap import scantable
	1525	if not self._data and not scan:
	1526	msg = "Input is not a scantable"
	1527	raise TypeError(msg)
	1528	if isinstance(scan, scantable):
	1529	if self._data is not None:
	1530	if scan != self._data:
	1531	self._data = scan
	1532	# reset
	1533	self._reset()
	1534	else:
	1535	self._data = scan
	1536	self._reset()
	1537	# ranges become invalid when abcissa changes?
	1538	#if self._abcunit and self._abcunit != self._data.get_unit():
	1539	# self._minmaxx = None
	1540	# self._minmaxy = None
	1541	# self._abcunit = self._data.get_unit()
	1542	# self._datamask = None
	1543
[2693]	1544	self._assert_plotter(action="reload")
	1545	self._plotter.hold()
	1546	self._plotter.clear()
[2037]	1547	# Adjust subplot margins
[2576]	1548	if not self._margins or len(self._margins) !=6:
	1549	self.set_margin(refresh=False)
[2037]	1550	lef, bot, rig, top, wsp, hsp = self._margins
[1819]	1551	self._plotter.figure.subplots_adjust(
	1552	left=lef,bottom=bot,right=rig,top=top,wspace=wsp,hspace=hsp)
[2147]	1553	if self.casabar_exists(): self._plotter.figmgr.casabar.disable_button()
[1819]	1554	self._plottp(self._data)
	1555	if self._minmaxy is not None:
	1556	self._plotter.set_limits(ylim=self._minmaxy)
	1557	self._plotter.release()
	1558	self._plotter.tidy()
	1559	self._plotter.show(hardrefresh=False)
	1560	return
	1561
	1562	def _plottp(self,scan):
	1563	"""
	1564	private method for plotting total power data
	1565	"""
	1566	from numpy import ma, array, arange, logical_not
	1567	r=0
	1568	nr = scan.nrow()
	1569	a0,b0 = -1,-1
	1570	allxlim = []
	1571	allylim = []
	1572	y=[]
	1573	self._plotter.set_panels()
	1574	self._plotter.palette(0)
	1575	#title
	1576	#xlab = self._abcissa and self._abcissa[panelcount] \
	1577	# or scan._getabcissalabel()
	1578	#ylab = self._ordinate and self._ordinate[panelcount] \
	1579	# or scan._get_ordinate_label()
	1580	xlab = self._abcissa or 'row number' #or Time
	1581	ylab = self._ordinate or scan._get_ordinate_label()
	1582	self._plotter.set_axes('xlabel',xlab)
	1583	self._plotter.set_axes('ylabel',ylab)
	1584	lbl = self._get_label(scan, r, 's', self._title)
	1585	if isinstance(lbl, list) or isinstance(lbl, tuple):
	1586	# if 0 <= panelcount < len(lbl):
	1587	# lbl = lbl[panelcount]
	1588	# else:
	1589	# get default label
	1590	lbl = self._get_label(scan, r, self._panelling, None)
	1591	self._plotter.set_axes('title',lbl)
	1592	y=array(scan._get_column(scan._getspectrum,-1))
	1593	m = array(scan._get_column(scan._getmask,-1))
	1594	y = ma.masked_array(y,mask=logical_not(array(m,copy=False)))
	1595	x = arange(len(y))
	1596	# try to handle spectral data somewhat...
	1597	l,m = y.shape
	1598	if m > 1:
	1599	y=y.mean(axis=1)
	1600	plotit = self._plotter.plot
	1601	llbl = self._get_label(scan, r, self._stacking, None)
	1602	self._plotter.set_line(label=llbl)
	1603	if len(x) > 0:
	1604	plotit(x,y)
	1605
	1606
	1607	# forwards to matplotlib.Figure.text
	1608	def figtext(self, args, *kwargs):
	1609	"""
	1610	Add text to figure at location x,y (relative 0-1 coords).
	1611	This method forwards args and *kwargs to a Matplotlib method,
	1612	matplotlib.Figure.text.
	1613	See the method help for detailed information.
	1614	"""
[2453]	1615	self._assert_plotter(action="reload")
[1819]	1616	self._plotter.text(args, *kwargs)
	1617	# end matplotlib.Figure.text forwarding function
	1618
	1619
	1620	# printing header information
[1862]	1621	@asaplog_post_dec
[2053]	1622	def print_header(self, plot=True, fontsize=9, logger=False, selstr='', extrastr=''):
[1819]	1623	"""
	1624	print data (scantable) header on the plot and/or logger.
[2056]	1625	To plot the header on the plot, this method should be called after
	1626	plotting spectra by the method, asapplotter.plot.
[1819]	1627	Parameters:
[1824]	1628	plot: whether or not print header info on the plot.
[2053]	1629	fontsize: header font size (valid only plot=True)
[1819]	1630	logger: whether or not print header info on the logger.
	1631	selstr: additional selection string (not verified)
[2053]	1632	extrastr: additional string to print at the beginning (not verified)
[1819]	1633	"""
[1859]	1634	if not plot and not logger:
	1635	return
	1636	if not self._data:
	1637	raise RuntimeError("No scantable has been set yet.")
[1824]	1638	# Now header will be printed on plot and/or logger.
	1639	# Get header information and format it.
[2112]	1640	ssum=self._data._list_header()
[1819]	1641	# Print Observation header to the upper-left corner of plot
[2290]	1642	headstr=[ssum[0:ssum.find('Obs. Type:')]]
	1643	headstr.append(ssum[ssum.find('Obs. Type:'):ssum.find('Flux Unit:')])
[2053]	1644	if extrastr != '':
	1645	headstr[0]=extrastr+'\n'+headstr[0]
	1646	self._headtext['extrastr'] = extrastr
[2112]	1647	if selstr != '':
	1648	selstr += '\n'
	1649	self._headtext['selstr'] = selstr
[2056]	1650	ssel=(selstr+self._data.get_selection().__str__()+self._selection.__str__() or 'none')
[2053]	1651	headstr.append('*Selections*\n'+ssel)
[1824]	1652
[2051]	1653	if plot:
[2451]	1654	errmsg = "Can plot header only after the first call to plot()."
[2453]	1655	self._assert_plotter(action="halt",errmsg=errmsg)
[1819]	1656	self._plotter.hold()
[2053]	1657	self._header_plot(headstr,fontsize=fontsize)
[1819]	1658	import time
[2106]	1659	self._plotter.figure.text(0.99,0.01,
[1819]	1660	time.strftime("%a %d %b %Y %H:%M:%S %Z"),
	1661	horizontalalignment='right',
	1662	verticalalignment='bottom',fontsize=8)
	1663	self._plotter.release()
	1664	if logger:
[2053]	1665	selstr = "Selections: "+ssel
[1819]	1666	asaplog.push("----------------\n Plot Summary\n----------------")
[2053]	1667	asaplog.push(extrastr)
[2290]	1668	asaplog.push(ssum[0:ssum.find('Selection:')]\
[2112]	1669	+ selstr)
[2053]	1670	self._headtext['string'] = headstr
	1671	del ssel, ssum, headstr
[2051]	1672
[2053]	1673	def _header_plot(self, texts, fontsize=9):
	1674	self._headtext['textobj']=[]
	1675	nstcol=len(texts)
	1676	for i in range(nstcol):
	1677	self._headtext['textobj'].append(
	1678	self._plotter.figure.text(0.03+float(i)/nstcol,0.98,
	1679	texts[i],
	1680	horizontalalignment='left',
	1681	verticalalignment='top',
	1682	fontsize=fontsize))
	1683
	1684	def clear_header(self):
	1685	if not self._headtext['textobj']:
	1686	asaplog.push("No header has been plotted. Exit without any operation")
	1687	asaplog.post("WARN")
[2453]	1688	elif self._assert_plotter(action="status"):
[2053]	1689	self._plotter.hold()
	1690	for textobj in self._headtext['textobj']:
	1691	#if textobj.get_text() in self._headstring:
	1692	try:
	1693	textobj.remove()
	1694	except NotImplementedError:
	1695	self._plotter.figure.texts.pop(self._plotter.figure.texts.index(textobj))
	1696	self._plotter.release()
	1697	self._reset_header()
[2576]	1698
	1699	# plot spectra by pointing
	1700	@asaplog_post_dec
	1701	def plotgrid(self, scan=None,center=None,spacing=None,rows=None,cols=None):
	1702	"""
	1703	Plot spectra based on direction.
	1704
	1705	Parameters:
	1706	scan: a scantable to plot
	1707	center: the grid center direction (a list) of plots in the
	1708	unit of DIRECTION column.
	1709	(default) the center of map region
	1710	spacing: a list of horizontal (R.A.) and vertical (Dec.)
	1711	spacing in the unit of DIRECTION column.
	1712	(default) Calculated by the extent of map region and
	1713	the number of rows and cols to cover
	1714	rows: number of panels (grid points) in horizontal direction
	1715	cols: number of panels (grid points) in vertical direction
	1716
	1717	Note:
	1718	- Only the first IFNO, POLNO, and BEAM in the scantable will be
	1719	plotted.
	1720	- This method doesn't re-grid and average spectra in scantable. Use
	1721	asapgrid module to re-grid spectra before plotting with this method.
	1722	Only the first spectrum is plotted in case there are multiple
	1723	spectra which belong to a grid.
	1724	"""
	1725	from asap import scantable
[2607]	1726	from numpy import array, ma, cos
[2576]	1727	if not self._data and not scan:
	1728	msg = "No scantable is specified to plot"
	1729	raise TypeError(msg)
[2604]	1730	if scan:
	1731	self.set_data(scan, refresh=False)
	1732	del scan
	1733
[2576]	1734	# Rows and cols
	1735	if rows:
	1736	self._rows = int(rows)
	1737	else:
	1738	msg = "Number of rows to plot are not specified. "
	1739	if self._rows:
	1740	msg += "Using previous value = %d" % (self._rows)
	1741	asaplog.push(msg)
	1742	else:
	1743	self._rows = 1
	1744	msg += "Setting rows = %d" % (self._rows)
	1745	asaplog.post()
	1746	asaplog.push(msg)
	1747	asaplog.post("WARN")
	1748	if cols:
	1749	self._cols = int(cols)
	1750	else:
	1751	msg = "Number of cols to plot are not specified. "
	1752	if self._cols:
	1753	msg += "Using previous value = %d" % (self._cols)
	1754	asaplog.push(msg)
	1755	else:
	1756	self._cols = 1
	1757	msg += "Setting cols = %d" % (self._cols)
	1758	asaplog.post()
	1759	asaplog.push(msg)
	1760	asaplog.post("WARN")
	1761
	1762	# Center and spacing
[2691]	1763	dirarr = array(self._data.get_directionval()).transpose()
	1764	print "Pointing range: (x, y) = (%f - %f, %f - %f)" %\
	1765	(dirarr[0].min(),dirarr[0].max(),dirarr[1].min(),dirarr[1].max())
	1766	dircent = [0.5*(dirarr[0].max() + dirarr[0].min()),
	1767	0.5*(dirarr[1].max() + dirarr[1].min())]
	1768	del dirarr
[2607]	1769	if center is None:
	1770	#asaplog.post()
[2576]	1771	asaplog.push("Grid center is not specified. Automatically calculated from pointing center.")
[2607]	1772	#asaplog.post("WARN")
[2576]	1773	#center = [dirarr[0].mean(), dirarr[1].mean()]
[2691]	1774	center = dircent
[2607]	1775	elif (type(center) in (list, tuple)) and len(center) > 1:
[2691]	1776	from numpy import pi
	1777	# make sure center_x is in +-pi of pointing center
	1778	# (assumes dirs are in rad)
	1779	rotnum = round(abs(center[0] - dircent[0])/(2*pi))
	1780	if center[0] < dircent[0]: rotnum *= -1
	1781	cenx = center[0] - rotnum2pi
	1782	center = [cenx, center[1]]
[2607]	1783	else:
	1784	msg = "Direction of grid center should be a list of float (R.A., Dec.)"
	1785	raise ValueError, msg
[2576]	1786	asaplog.push("Grid center: (%f, %f) " % (center[0],center[1]))
	1787
	1788	if spacing is None:
[2607]	1789	#asaplog.post()
[2576]	1790	asaplog.push("Grid spacing not specified. Automatically calculated from map coverage")
[2607]	1791	#asaplog.post("WARN")
[2576]	1792	# automatically get spacing
	1793	dirarr = array(self._data.get_directionval()).transpose()
	1794	wx = 2. * max(abs(dirarr[0].max()-center[0]),
	1795	abs(dirarr[0].min()-center[0]))
	1796	wy = 2. * max(abs(dirarr[1].max()-center[1]),
	1797	abs(dirarr[1].min()-center[1]))
[2607]	1798	## slightly expand area to plot the edges
[2691]	1799	#wx *= 1.1
	1800	#wy *= 1.1
[2607]	1801	xgrid = wx/max(self._cols-1.,1.)
[2691]	1802	#xgrid = wx/float(max(self._cols,1.))
	1803	xgrid *= cos(center[1])
[2607]	1804	ygrid = wy/max(self._rows-1.,1.)
[2691]	1805	#ygrid = wy/float(max(self._rows,1.))
	1806	# single pointing (identical R.A. and/or Dec. for all spectra.)
[2576]	1807	if xgrid == 0:
	1808	xgrid = 1.
	1809	if ygrid == 0:
	1810	ygrid = 1.
	1811	# spacing should be negative to transpose plot
	1812	spacing = [- xgrid, - ygrid]
	1813	del dirarr, xgrid, ygrid
	1814	#elif isinstance(spacing, str):
	1815	# # spacing is a quantity
[2607]	1816	elif (type(spacing) in (list, tuple)) and len(spacing) > 1:
[2602]	1817	for i in xrange(2):
	1818	val = spacing[i]
	1819	if not isinstance(val, float):
[2576]	1820	raise TypeError("spacing should be a list of float")
[2602]	1821	if val > 0.:
	1822	spacing[i] = -val
[2576]	1823	spacing = spacing[0:2]
	1824	else:
	1825	msg = "Invalid spacing."
	1826	raise TypeError(msg)
[2607]	1827	asaplog.push("Spacing: (%f, %f) (projected)" % (spacing[0],spacing[1]))
[2576]	1828
	1829	ntotpl = self._rows * self._cols
	1830	ifs = self._data.getifnos()
	1831	if len(ifs) > 1:
	1832	msg = "Found multiple IFs in scantable. Only the first IF (IFNO=%d) will be plotted." % ifs[0]
	1833	asaplog.post()
	1834	asaplog.push(msg)
	1835	asaplog.post("WARN")
	1836	pols = self._data.getpolnos()
	1837	if len(pols) > 1:
	1838	msg = "Found multiple POLs in scantable. Only the first POL (POLNO=%d) will be plotted." % pols[0]
	1839	asaplog.post()
	1840	asaplog.push(msg)
	1841	asaplog.post("WARN")
	1842	beams = self._data.getbeamnos()
	1843	if len(beams) > 1:
	1844	msg = "Found multiple BEAMs in scantable. Only the first BEAM (BEAMNO=%d) will be plotted." % beams[0]
	1845	asaplog.post()
	1846	asaplog.push(msg)
	1847	asaplog.post("WARN")
	1848	self._data.set_selection(ifs=[ifs[0]],pols=[pols[0]],beams=[beams[0]])
	1849	if self._data.nrow() > ntotpl:
	1850	msg = "Scantable is finely sampled than plotting grids. "\
	1851	+ "Only the first spectrum is plotted in each grid."
	1852	asaplog.post()
	1853	asaplog.push(msg)
	1854	asaplog.post("WARN")
	1855
	1856	self._assert_plotter(action="reload")
	1857	self._plotter.hold()
[2693]	1858	#self._plotter.clear() #all artists are cleared at set_panels
[2604]	1859	self._plotter.legend()
[2691]	1860
[2576]	1861	# Adjust subplot margins
	1862	if not self._margins or len(self._margins) !=6:
	1863	self.set_margin(refresh=False)
	1864	self._plotter.set_panels(rows=self._rows,cols=self._cols,
[2693]	1865	nplots=ntotpl,margin=self._margins,ganged=True)
[2603]	1866	if self.casabar_exists():
	1867	self._plotter.figmgr.casabar.set_pagecounter(1)
	1868	self._plotter.figmgr.casabar.enable_button()
[2691]	1869	# Plot helper
	1870	from asap._asap import plothelper as plhelper
	1871	ph = plhelper(self._data)
	1872	ph.set_gridval(self._cols, self._rows, spacing[0], spacing[1],
	1873	center[0], center[1], epoch="J2000", projname="SIN")
[2576]	1874	# Actual plot
	1875	npl = 0
	1876	for irow in range(self._data.nrow()):
[2691]	1877	(ix, iy) = ph.get_gpos(irow)
	1878	#print("asapplotter.plotgrid: (ix, iy) = (%f, %f)" % (ix, iy))
[2576]	1879	if ix < 0 or ix >= self._cols:
[2602]	1880	#print "Row %d : Out of X-range (x = %f) ... skipped" % (irow, pos[0])
[2576]	1881	continue
[2691]	1882	ix = int(ix)
	1883	if iy < 0 or iy >= self._rows:
[2602]	1884	#print "Row %d : Out of Y-range (y = %f) ... skipped" % (irow,pos[1])
[2576]	1885	continue
[2691]	1886	iy = int(iy)
	1887	ipanel = ix + iy*self._rows
	1888	#print("Resolved panel Id (%d, %d): %d" % (ix, iy, ipanel))
[2576]	1889	if len(self._plotter.subplots[ipanel]['lines']) > 0:
[2602]	1890	#print "Row %d : panel %d lready plotted ... skipped" % (irow,ipanel)
[2576]	1891	# a spectrum already plotted in the panel
	1892	continue
	1893	# Plotting this row
[2602]	1894	#print "PLOTTING row %d (panel=%d)" % (irow, ipanel)
[2576]	1895	npl += 1
	1896	self._plotter.subplot(ipanel)
[2602]	1897	self._plotter.palette(0,colormap=self._colormap, \
	1898	linestyle=0,linestyles=self._linestyles)
[2576]	1899	xlab = self._abcissa and self._abcissa[ipanel] \
[2603]	1900	or self._data._getabcissalabel(irow)
[2576]	1901	if self._offset and not self._abcissa:
	1902	xlab += " (relative)"
	1903	ylab = self._ordinate and self._ordinate[ipanel] \
[2603]	1904	or self._data._get_ordinate_label()
[2576]	1905	self._plotter.set_axes('xlabel', xlab)
	1906	self._plotter.set_axes('ylabel', ylab)
	1907	lbl = self._data.get_direction(irow)
	1908	self._plotter.set_axes('title',lbl)
	1909
[2603]	1910	y = self._data._getspectrum(irow)
[2576]	1911	# flag application
[2603]	1912	mr = self._data._getflagrow(irow)
[2576]	1913	if mr: # FLAGROW=True
	1914	y = ma.masked_array(y,mask=mr)
	1915	else:
[2603]	1916	m = self._data._getmask(irow)
[2576]	1917	from numpy import logical_not, logical_and
	1918	### user mask is not available so far
	1919	#if self._maskselection and len(self._usermask) == len(m):
	1920	# if d[self._stacking](irow) in self._maskselection[self._stacking]:
	1921	# m = logical_and(m, self._usermask)
	1922	y = ma.masked_array(y,mask=logical_not(array(m,copy=False)))
	1923
[2603]	1924	x = array(self._data._getabcissa(irow))
[2576]	1925	if self._offset:
	1926	x += self._offset
	1927	if self._minmaxx is not None:
	1928	s,e = self._slice_indeces(x)
	1929	x = x[s:e]
	1930	y = y[s:e]
	1931	if len(x) > 1024 and rcParams['plotter.decimate']:
	1932	fac = len(x)/1024
	1933	x = x[::fac]
	1934	y = y[::fac]
	1935	self._plotter.set_line(label=lbl)
	1936	plotit = self._plotter.plot
	1937	if self._hist: plotit = self._plotter.hist
	1938	if len(x) > 0 and not mr:
	1939	plotit(x,y)
	1940	# xlim= self._minmaxx or [min(x),max(x)]
	1941	# allxlim += xlim
	1942	# ylim= self._minmaxy or [ma.minimum(y),ma.maximum(y)]
	1943	# allylim += ylim
	1944	# else:
	1945	# xlim = self._minmaxx or []
	1946	# allxlim += xlim
	1947	# ylim= self._minmaxy or []
	1948	# allylim += ylim
	1949
	1950	if npl >= ntotpl:
	1951	break
	1952
	1953	if self._minmaxy is not None:
	1954	self._plotter.set_limits(ylim=self._minmaxy)
	1955	self._plotter.release()
	1956	self._plotter.tidy()
	1957	self._plotter.show(hardrefresh=False)
	1958	return

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source: trunk/python/asapplotter.py @ 2693

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