Plotter1D.py @ 095ab1b

ESS_GUIESS_GUI_DocsESS_GUI_batch_fittingESS_GUI_bumps_abstractionESS_GUI_iss1116ESS_GUI_iss879ESS_GUI_iss959ESS_GUI_openclESS_GUI_orderingESS_GUI_sync_sascalccostrafo411magnetic_scattrelease-4.1.1release-4.1.2release-4.2.2release_4.0.1ticket-1009ticket-1094-headlessticket-1242-2d-resolutionticket-1243ticket-1249ticket885unittest-saveload

Last change on this file since 095ab1b was 21d99c2, checked in by Mathieu Doucet <doucetm@…>, 15 years ago
guiframe: revised logic for removing empty plots
Property mode set to `100644`
File size: 20.1 KB

Rev	Line
[1bf33c1]	1	"""
	2	This software was developed by the University of Tennessee as part of the
	3	Distributed Data Analysis of Neutron Scattering Experiments (DANSE)
	4	project funded by the US National Science Foundation.
	5
	6	See the license text in license.txt
	7
	8	copyright 2008, University of Tennessee
	9	"""
	10
	11
	12	import wx
[4ac8556]	13	import sys
	14	import os
	15	import pylab
	16	import math
	17	import numpy
	18	import time
[0d9dae8]	19
[1bf33c1]	20	import danse.common.plottools
	21	from danse.common.plottools.PlotPanel import PlotPanel
[e5664f2]	22	from danse.common.plottools.plottables import Graph
[3b69ca6]	23	from sans.guiframe import dataFitting
[1bf33c1]	24	from sans.guicomm.events import EVT_NEW_PLOT
[18eba35]	25	from sans.guicomm.events import StatusEvent ,NewPlotEvent,SlicerEvent,ErrorDataEvent
[1debb29]	26	from sans.guicomm.events import RemoveDataEvent
[0d9dae8]	27	from sans.guiframe.utils import PanelMenu
[4ac8556]	28	from sans.guiframe.dataFitting import Data1D
[e5664f2]	29	from sans.guiframe.dataFitting import Theory1D
[1bf33c1]	30	from binder import BindArtist
	31
[0d9dae8]	32
	33	DEFAULT_QMAX = 0.05
[1bf33c1]	34	DEFAULT_QSTEP = 0.001
	35	DEFAULT_BEAM = 0.005
	36	BIN_WIDTH =1
	37
[0d9dae8]	38
[1bf33c1]	39	class ModelPanel1D(PlotPanel):
	40	"""
	41	Plot panel for use with the GUI manager
	42	"""
	43
	44	## Internal name for the AUI manager
	45	window_name = "plotpanel"
	46	## Title to appear on top of the window
	47	window_caption = "Plot Panel"
	48	## Flag to tell the GUI manager that this panel is not
	49	# tied to any perspective
	50	ALWAYS_ON = True
	51	## Group ID
	52	group_id = None
	53
	54	def __init__(self, parent, id = -1, color = None,\
	55	dpi = None, style = wx.NO_FULL_REPAINT_ON_RESIZE, **kwargs):
	56	"""
	57	Initialize the panel
	58	"""
	59	PlotPanel.__init__(self, parent, id = id, style = style, **kwargs)
	60
	61	## Reference to the parent window
	62	self.parent = parent
	63	## Plottables
	64	self.plots = {}
[869c368]	65	## save errors dy for each data plotted
	66	self.err_dy={}
[6c0568b]	67	## flag to determine if the hide or show context menu item should
	68	## be displayed
[31482fc]	69	self.errors_hide=False
[1bf33c1]	70	## Unique ID (from gui_manager)
	71	self.uid = None
	72	## Action IDs for internal call-backs
	73	self.action_ids = {}
[6063b16]	74	## Default locations
	75	self._default_save_location = os.getcwd()
[1bf33c1]	76	## Graph
	77	self.graph = Graph()
	78	self.graph.xaxis("\\rm{Q}", 'A^{-1}')
	79	self.graph.yaxis("\\rm{Intensity} ","cm^{-1}")
	80	self.graph.render(self)
	81
[6c0568b]	82
[1bf33c1]	83	def _reset(self):
	84	"""
	85	Resets internal data and graph
	86	"""
	87	self.graph.reset()
	88	self.plots = {}
	89	self.action_ids = {}
	90
[6c0568b]	91
[1bf33c1]	92	def _onEVT_1DREPLOT(self, event):
	93	"""
	94	Data is ready to be displayed
	95	@param event: data event
	96	"""
[ffd23b5]	97
[1bf33c1]	98	#TODO: Check for existence of plot attribute
	99	# Check whether this is a replot. If we ask for a replot
	100	# and the plottable no longer exists, ignore the event.
	101	if hasattr(event, "update") and event.update==True \
	102	and event.plot.name not in self.plots.keys():
	103	return
	104
	105	if hasattr(event, "reset"):
	106	self._reset()
	107
[f5fda87]	108	# Check whether the plottable is empty
	109	is_empty = len(event.plot.x)==0
	110
[1bf33c1]	111	is_new = True
	112	if event.plot.name in self.plots.keys():
[f5fda87]	113	# If the plottable is empty, just remove the plottable from the graph
	114	if is_empty:
	115	self.graph.delete(self.plots[event.plot.name])
[21d99c2]	116	del self.plots[event.plot.name]
	117	else:
	118	# Check whether the class of plottable changed
	119	if not event.plot.__class__==self.plots[event.plot.name].__class__:
	120	#overwrite a plottable using the same name
	121	self.graph.delete(self.plots[event.plot.name])
	122	else:
	123	# plottable is already draw on the panel
	124	is_new = False
[ffd23b5]	125
[f5fda87]	126	if not is_empty:
	127	if is_new:
	128	# a new plottable overwrites a plotted one using the same id
	129	for plottable in self.plots.itervalues():
	130	if hasattr(event.plot,"id") and hasattr(plottable, "id"):
	131	if event.plot.id==plottable.id :
	132	self.graph.delete(plottable)
	133
	134	self.plots[event.plot.name] = event.plot
	135	self.graph.add(self.plots[event.plot.name])
	136	else:
	137	#replot the graph
	138	self.plots[event.plot.name].x = event.plot.x
	139	self.plots[event.plot.name].y = event.plot.y
	140	self.plots[event.plot.name].dy = event.plot.dy
	141	if hasattr(event.plot, 'dx') and hasattr(self.plots[event.plot.name], 'dx'):
	142	self.plots[event.plot.name].dx = event.plot.dx
[31482fc]	143
[1bf33c1]	144	#TODO: Should re-factor this
[6c0568b]	145	## for all added plot the option to hide error show be displayed first
[31482fc]	146	#self.errors_hide = 0
[6c0568b]	147	## Set axis labels
[1bf33c1]	148	self.graph.xaxis(event.plot._xaxis, event.plot._xunit)
	149	self.graph.yaxis(event.plot._yaxis, event.plot._yunit)
[6c0568b]	150	## Set the view scale for all plots
[1bf33c1]	151	self._onEVT_FUNC_PROPERTY()
[6c0568b]	152	## render the graph
[1bf33c1]	153	self.graph.render(self)
	154	self.subplot.figure.canvas.draw_idle()
[31482fc]	155	if self.errors_hide:
	156	self._on_remove_errors(evt=None)
	157	else:
	158	self._on_add_errors( evt=None)
	159	return
	160
[1bf33c1]	161	def onLeftDown(self,event):
[6c0568b]	162	"""
	163	left button down and ready to drag
	164	Display the position of the mouse on the statusbar
	165	"""
[1bf33c1]	166	PlotPanel.onLeftDown(self, event)
	167	ax = event.inaxes
	168	if ax != None:
	169	position = "x: %8.3g y: %8.3g" % (event.xdata, event.ydata)
	170	wx.PostEvent(self.parent, StatusEvent(status=position))
	171
[6c0568b]	172
[1bf33c1]	173	def _onRemove(self, event):
	174	"""
[6c0568b]	175	Remove a plottable from the graph and render the graph
	176	@param event: Menu event
[1bf33c1]	177	"""
[6c0568b]	178	## Check if there is a selected graph to remove
[1debb29]	179	if not self.graph.selected_plottable == None and\
	180	self.graph.selected_plottable in self.plots.keys():
	181	color=self.graph.plottables[self.plots[self.graph.selected_plottable]]
	182
	183	event = RemoveDataEvent(data =self.plots[self.graph.selected_plottable])
	184	wx.PostEvent(self.parent, event)
[1bf33c1]	185	self.graph.delete(self.plots[self.graph.selected_plottable])
	186	del self.plots[self.graph.selected_plottable]
[1debb29]	187	## increment graph color
	188	self.graph.color += color
[1bf33c1]	189	self.graph.render(self)
	190	self.subplot.figure.canvas.draw_idle()
[1debb29]	191
[1bf33c1]	192
	193
	194	def onContextMenu(self, event):
	195	"""
	196	1D plot context menu
	197	@param event: wx context event
	198	"""
	199	slicerpop = PanelMenu()
	200	slicerpop.set_plots(self.plots)
	201	slicerpop.set_graph(self.graph)
	202
[9a585d0]	203	# Various plot options
	204	id = wx.NewId()
	205	slicerpop.Append(id,'&Save image', 'Save image as PNG')
	206	wx.EVT_MENU(self, id, self.onSaveImage)
	207
	208	id = wx.NewId()
	209	slicerpop.Append(id,'&Print image', 'Print image ')
[18eba35]	210	wx.EVT_MENU(self, id, self.onPrint)
	211
	212	id = wx.NewId()
	213	slicerpop.Append(id,'&Print Preview', 'image preview for print')
	214	wx.EVT_MENU(self, id, self.onPrinterPreview)
[9a585d0]	215
	216	slicerpop.AppendSeparator()
	217	item_list = self.parent.get_context_menu(self.graph)
[6c0568b]	218
[9a585d0]	219	if (not item_list==None) and (not len(item_list)==0):
	220	for item in item_list:
	221	try:
	222	id = wx.NewId()
	223	slicerpop.Append(id, item[0], item[1])
	224	wx.EVT_MENU(self, id, item[2])
	225	except:
[6c0568b]	226	wx.PostEvent(self.parent, StatusEvent(status=\
	227	"ModelPanel1D.onContextMenu: bad menu item %s"%sys.exc_value))
[9a585d0]	228	pass
	229	slicerpop.AppendSeparator()
[6c0568b]	230
[1bf33c1]	231	if self.graph.selected_plottable in self.plots:
	232	plot = self.plots[self.graph.selected_plottable]
	233	id = wx.NewId()
	234	name = plot.name
[6c0568b]	235
[42d27f2]	236	slicerpop.Append(id, "&Save points" )
[1bf33c1]	237	self.action_ids[str(id)] = plot
	238	wx.EVT_MENU(self, id, self._onSave)
[31482fc]	239
[1bf33c1]	240	id = wx.NewId()
	241	slicerpop.Append(id, "Remove %s curve" % name)
	242	self.action_ids[str(id)] = plot
	243	wx.EVT_MENU(self, id, self._onRemove)
[9a585d0]	244	slicerpop.AppendSeparator()
[1bf33c1]	245	# Option to hide
	246	#TODO: implement functionality to hide a plottable (legend click)
[d468daa]	247
[1bf33c1]	248	if self.graph.selected_plottable in self.plots:
[0b16ee3]	249	selected_plot= self.plots[self.graph.selected_plottable]
	250	#if self.plots[self.graph.selected_plottable].name in self.err_dy.iterkeys()\
	251	# and self.errors_hide:
	252	if selected_plot.__class__.__name__=="Data1D":
[a85f622]	253	if numpy.all(selected_plot.dy==0):
[0b16ee3]	254	id = wx.NewId()
[a85f622]	255	slicerpop.Append(id, '&Show errors')
[0b16ee3]	256	wx.EVT_MENU(self, id, self._on_add_errors)
[a85f622]	257	elif selected_plot.dy !=None and selected_plot.dy != []:
[dd66fbd]	258	id = wx.NewId()
[18eba35]	259	slicerpop.Append(id, '&Hide Error bars')
[dd66fbd]	260	wx.EVT_MENU(self, id, self._on_remove_errors)
[3cc533e]	261
	262	id = wx.NewId()
	263	slicerpop.Append(id, '&Linear fit')
	264	wx.EVT_MENU(self, id, self.onFitting)
[1bf33c1]	265
[9a585d0]	266	slicerpop.AppendSeparator()
[6c0568b]	267
[1bf33c1]	268	id = wx.NewId()
	269	slicerpop.Append(id, '&Change scale')
	270	wx.EVT_MENU(self, id, self._onProperties)
[6c0568b]	271
[1bf33c1]	272	id = wx.NewId()
	273	slicerpop.Append(id, '&Reset Graph')
[d468daa]	274	wx.EVT_MENU(self, id, self.onResetGraph)
[6d920cd]	275
[1bf33c1]	276	pos = event.GetPosition()
	277	pos = self.ScreenToClient(pos)
	278	self.PopupMenu(slicerpop, pos)
[18eba35]	279
	280
[869c368]	281	def _on_remove_errors(self, evt):
[6c0568b]	282	"""
	283	Save name and dy of data in dictionary self.err_dy
	284	Create a new data1D with the same x, y
	285	vector and dy with zeros.
	286	post self.err_dy as event (ErrorDataEvent) for any object
	287	which wants to reconstruct the initial data.
	288	@param evt: Menu event
	289	"""
[869c368]	290	if not self.graph.selected_plottable == None:
[6c0568b]	291	## store existing dy
[869c368]	292	name =self.plots[self.graph.selected_plottable].name
	293	dy = self.plots[self.graph.selected_plottable].dy
	294	self.err_dy[name]= dy
[6c0568b]	295	## Create a new dy for a new plottable
[18eba35]	296	import numpy
	297	dy= numpy.zeros(len(self.plots[self.graph.selected_plottable].y))
[0b16ee3]	298	selected_plot= self.plots[self.graph.selected_plottable]
	299
	300	if selected_plot.__class__.__name__=="Data1D":
[8068b52]	301	# Make sure that we can pass a basic Data1D
	302	dxl = None
	303	dxw = None
	304	if hasattr(selected_plot, "dxl"):
	305	dxl = selected_plot.dxl
	306	if hasattr(selected_plot, "dxw"):
	307	dxw = selected_plot.dxw
[4ac8556]	308	new_plot = Data1D( x=selected_plot.x,
[3b69ca6]	309	y= selected_plot.y,
	310	dx=selected_plot.dx,
[4ac8556]	311	dy=dy)
	312	new_plot.dxl = dxl
	313	new_plot.dxw = dxw
	314
[0b16ee3]	315	else:
[3b69ca6]	316	new_plot = Theory1D(x=selected_plot.x,y=selected_plot.y,dy=dy)
[869c368]	317	new_plot.interactive = True
[31482fc]	318	self.errors_hide = True
[869c368]	319	new_plot.name = self.plots[self.graph.selected_plottable].name
	320	if hasattr(self.plots[self.graph.selected_plottable], "group_id"):
	321	new_plot.group_id = self.plots[self.graph.selected_plottable].group_id
	322	new_plot.id = self.plots[self.graph.selected_plottable].id
	323	else:
	324	new_plot.group_id = str(time.time())
	325	new_plot.id = str(time.time())
	326	label, unit = self.plots[self.graph.selected_plottable].get_xaxis()
	327	new_plot.xaxis(label, unit)
	328	label, unit = self.plots[self.graph.selected_plottable].get_yaxis()
	329	new_plot.yaxis(label, unit)
[6c0568b]	330	## save the color of the selected plottable before it is deleted
[869c368]	331	color=self.graph.plottables[self.plots[self.graph.selected_plottable]]
[18eba35]	332	self.graph.delete(self.plots[self.graph.selected_plottable])
[6c0568b]	333	## add newly created plottable to the graph with the save color
[0b16ee3]	334	self.graph.color += color
[dd66fbd]	335	self.graph.add(new_plot,color)
[6c0568b]	336	## transforming the view of the new data into the same of the previous data
[869c368]	337	self._onEVT_FUNC_PROPERTY()
[6c0568b]	338	## save the plot
[869c368]	339	self.plots[self.graph.selected_plottable]=new_plot
[6c0568b]	340	## Render the graph
[869c368]	341	self.graph.render(self)
	342	self.subplot.figure.canvas.draw_idle()
[18eba35]	343
	344	event = ErrorDataEvent(err_dy=self.err_dy)
	345	wx.PostEvent(self.parent, event)
[1bf33c1]	346
[6c0568b]	347
[1bf33c1]	348	def _on_add_errors(self, evt):
	349	"""
[6c0568b]	350	create a new data1D witht the errors saved in self.err_dy
	351	to show errors of the plot.
[1bf33c1]	352	Compute reasonable errors for a data set without
	353	errors and transorm the plottable to a Data1D
[6c0568b]	354	@param evt: Menu event
[1bf33c1]	355	"""
[4ac8556]	356
[1bf33c1]	357
[1debb29]	358	if not self.graph.selected_plottable == None \
	359	and self.graph.selected_plottable in self.plots.keys():
[6c0568b]	360	##Reset the flag to display the hide option on the context menu
[31482fc]	361	self.errors_hide = False
[6c0568b]	362	## restore dy
[1bf33c1]	363	length = len(self.plots[self.graph.selected_plottable].x)
	364	dy = numpy.zeros(length)
[3b69ca6]	365
[869c368]	366	selected_plot= self.plots[self.graph.selected_plottable]
[0b16ee3]	367
[869c368]	368	try:
	369	dy = self.err_dy[selected_plot.name]
[0b16ee3]	370
[869c368]	371	except:
[bb5c1c7]	372	#for i in range(length):
	373	#dy[i] = math.sqrt(self.plots[self.graph.selected_plottable].y[i])
[0b16ee3]	374	if hasattr(selected_plot,"dy"):
	375	dy= selected_plot.dy
	376	else:
	377	dy = numpy.zeros(selected_plot.dy)
	378
[6c0568b]	379	## Create a new plottable data1D
[0b16ee3]	380	if selected_plot.__class__.__name__=="Data1D":
[8068b52]	381	# Make sure that we can pass a basic Data1D
	382	dxl = None
	383	dxw = None
	384	if hasattr(selected_plot, "dxl"):
	385	dxl = selected_plot.dxl
	386	if hasattr(selected_plot, "dxw"):
	387	dxw = selected_plot.dxw
[4ac8556]	388	new_plot = Data1D( x=selected_plot.x,
[3b69ca6]	389	y= selected_plot.y,
	390	dx=selected_plot.dx,
[4ac8556]	391	dy=dy)
	392	new_plot.dxl = dxl
	393	new_plot.dxw = dxw
	394
[0b16ee3]	395	else:
	396	## Create a new plottable Theory1D
[3b69ca6]	397	new_plot = Theory1D(x=selected_plot.x,y=selected_plot.y,dy=dy)
	398
[1bf33c1]	399	new_plot.interactive = True
	400	new_plot.name = self.plots[self.graph.selected_plottable].name
	401	if hasattr(self.plots[self.graph.selected_plottable], "group_id"):
	402	new_plot.group_id = self.plots[self.graph.selected_plottable].group_id
[d1dd9d4]	403	new_plot.id = self.plots[self.graph.selected_plottable].id
[1bf33c1]	404	else:
	405	new_plot.group_id = str(time.time())
[d1dd9d4]	406	new_plot.id = str(time.time())
[1bf33c1]	407
	408	label, unit = self.plots[self.graph.selected_plottable].get_xaxis()
	409	new_plot.xaxis(label, unit)
	410	label, unit = self.plots[self.graph.selected_plottable].get_yaxis()
	411	new_plot.yaxis(label, unit)
[6c0568b]	412	## save the color of the selected plottable before it is deleted
[18eba35]	413	color=self.graph.plottables[self.plots[self.graph.selected_plottable]]
	414	self.graph.delete(self.plots[self.graph.selected_plottable])
[0b16ee3]	415	self.graph.color += color
[6c0568b]	416	## add newly created plottable to the graph with the save color
[18eba35]	417	self.graph.add(new_plot, color)
[6c0568b]	418	## transforming the view of the new data into the same of the previous data
[ffd23b5]	419	self._onEVT_FUNC_PROPERTY()
[6c0568b]	420	## save the plot
[1bf33c1]	421	self.plots[self.graph.selected_plottable]=new_plot
[6c0568b]	422	## render the graph with its new content
[1bf33c1]	423	self.graph.render(self)
[8bd764d]	424	self.subplot.figure.canvas.draw_idle()
	425
[6c0568b]	426
[42d27f2]	427	def _onsaveTXT(self, path):
	428	"""
	429	Save file as txt
[1abcb04]	430
	431	TODO: Refactor and remove this method. See TODO in _onSave.
[42d27f2]	432	"""
	433	data = self.plots[self.graph.selected_plottable]
	434
	435	if not path == None:
	436	out = open(path, 'w')
	437	has_errors = True
	438	if data.dy==None or data.dy==[]:
	439	has_errors = False
	440
	441	# Sanity check
	442	if has_errors:
	443	try:
	444	if len(data.y) != len(data.dy):
	445
	446	has_errors = False
	447	except:
	448	has_errors = False
[8bd764d]	449
[42d27f2]	450	if has_errors:
	451	out.write("<X> <Y> <dY>\n")
	452	else:
	453	out.write("<X> <Y>\n")
	454
	455	for i in range(len(data.x)):
	456	if has_errors:
	457	out.write("%g %g %g\n" % (data.x[i],
	458	data.y[i],
	459	data.dy[i]))
	460	else:
	461	out.write("%g %g\n" % (data.x[i],
	462	data.y[i]))
	463
	464	out.close()
[6063b16]	465	try:
	466	self._default_save_location = os.path.dirname(path)
	467	except:
	468	pass
[8bd764d]	469
[1bf33c1]	470	def _onSave(self, evt):
	471	"""
	472	Save a data set to a text file
	473	@param evt: Menu event
	474	"""
[f0a9a3cc]	475
[1bf33c1]	476	id = str(evt.GetId())
	477	if id in self.action_ids:
	478
	479	path = None
[5fe5871c]	480	wildcard = "Text files (.txt)\|.txt\|"\
[7959f297]	481	"CanSAS 1D files(.xml)\|.xml"
[6063b16]	482	dlg = wx.FileDialog(self, "Choose a file",
	483	self._default_save_location, "",wildcard , wx.SAVE)
[42d27f2]	484
[1bf33c1]	485	if dlg.ShowModal() == wx.ID_OK:
	486	path = dlg.GetPath()
	487	mypath = os.path.basename(path)
[1abcb04]	488
	489	#TODO: This is bad design. The DataLoader is designed to recognize extensions.
	490	# It should be a simple matter of calling the .save(file, data, '.xml') method
[f0a9a3cc]	491	# of the DataLoader.loader.Loader class.
	492	from DataLoader.loader import Loader
	493	#Instantiate a loader
	494	loader = Loader()
	495	data = self.plots[self.graph.selected_plottable]
	496	format=".txt"
	497	if os.path.splitext(mypath)[1].lower() == format:
	498	self._onsaveTXT( path)
	499
	500	format= ".xml"
	501	if os.path.splitext(mypath)[1].lower() ==format:
	502	loader.save( path, data, format)
	503	try:
	504	self._default_save_location = os.path.dirname(path)
	505	except:
	506	pass
[1bf33c1]	507	dlg.Destroy()
[5fe5871c]	508
[f0a9a3cc]	509
	510
	511
[5fe5871c]	512
[6c0568b]	513
[1bf33c1]	514
[6c0568b]	515
[1bf33c1]	516

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SasView

source: sasview/guiframe/local_perspectives/plotting/Plotter1D.py @ 095ab1b

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