Plotter1D.py @ a618972

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 a618972 was b91c736, checked in by Gervaise Alina <gervyh@…>, 15 years ago
append more than one dat into the panel on focus
Property mode set to `100644`
File size: 20.6 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
[b91c736]	26	from sans.guicomm.events import RemoveDataEvent, AddManyDataEvent
[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)
[b91c736]	81
	82	def on_kill_focus(self, event):
	83	"""
	84	reset the panel color and post even just after the panel has been on
	85	focus to make sure the group_id is filled after _onEVT_1DREPLOT
	86	is called
	87	"""
	88	self.SetColor(None)
	89	self.draw()
	90	#post nd event to notify guiframe that this panel is on focus
	91	wx.PostEvent(self.parent, AddManyDataEvent(panel=self))
	92
[1bf33c1]	93	def _reset(self):
	94	"""
	95	Resets internal data and graph
	96	"""
	97	self.graph.reset()
	98	self.plots = {}
	99	self.action_ids = {}
	100
	101	def _onEVT_1DREPLOT(self, event):
	102	"""
	103	Data is ready to be displayed
	104	@param event: data event
	105	"""
[ffd23b5]	106
[1bf33c1]	107	#TODO: Check for existence of plot attribute
	108	# Check whether this is a replot. If we ask for a replot
	109	# and the plottable no longer exists, ignore the event.
	110	if hasattr(event, "update") and event.update==True \
	111	and event.plot.name not in self.plots.keys():
	112	return
	113
	114	if hasattr(event, "reset"):
	115	self._reset()
	116
[f5fda87]	117	# Check whether the plottable is empty
	118	is_empty = len(event.plot.x)==0
	119
[1bf33c1]	120	is_new = True
	121	if event.plot.name in self.plots.keys():
[f5fda87]	122	# If the plottable is empty, just remove the plottable from the graph
	123	if is_empty:
	124	self.graph.delete(self.plots[event.plot.name])
[21d99c2]	125	del self.plots[event.plot.name]
	126	else:
	127	# Check whether the class of plottable changed
	128	if not event.plot.__class__==self.plots[event.plot.name].__class__:
	129	#overwrite a plottable using the same name
	130	self.graph.delete(self.plots[event.plot.name])
	131	else:
	132	# plottable is already draw on the panel
	133	is_new = False
[ffd23b5]	134
[f5fda87]	135	if not is_empty:
	136	if is_new:
	137	# a new plottable overwrites a plotted one using the same id
	138	for plottable in self.plots.itervalues():
	139	if hasattr(event.plot,"id") and hasattr(plottable, "id"):
	140	if event.plot.id==plottable.id :
	141	self.graph.delete(plottable)
	142
	143	self.plots[event.plot.name] = event.plot
	144	self.graph.add(self.plots[event.plot.name])
	145	else:
	146	#replot the graph
	147	self.plots[event.plot.name].x = event.plot.x
	148	self.plots[event.plot.name].y = event.plot.y
	149	self.plots[event.plot.name].dy = event.plot.dy
	150	if hasattr(event.plot, 'dx') and hasattr(self.plots[event.plot.name], 'dx'):
	151	self.plots[event.plot.name].dx = event.plot.dx
[31482fc]	152
[1bf33c1]	153	#TODO: Should re-factor this
[6c0568b]	154	## for all added plot the option to hide error show be displayed first
[31482fc]	155	#self.errors_hide = 0
[6c0568b]	156	## Set axis labels
[1bf33c1]	157	self.graph.xaxis(event.plot._xaxis, event.plot._xunit)
	158	self.graph.yaxis(event.plot._yaxis, event.plot._yunit)
[6c0568b]	159	## Set the view scale for all plots
[1bf33c1]	160	self._onEVT_FUNC_PROPERTY()
[6c0568b]	161	## render the graph
[1bf33c1]	162	self.graph.render(self)
	163	self.subplot.figure.canvas.draw_idle()
[31482fc]	164	if self.errors_hide:
	165	self._on_remove_errors(evt=None)
	166	else:
	167	self._on_add_errors( evt=None)
	168
[1bf33c1]	169	def onLeftDown(self,event):
[6c0568b]	170	"""
	171	left button down and ready to drag
	172	Display the position of the mouse on the statusbar
	173	"""
[1bf33c1]	174	PlotPanel.onLeftDown(self, event)
	175	ax = event.inaxes
	176	if ax != None:
	177	position = "x: %8.3g y: %8.3g" % (event.xdata, event.ydata)
	178	wx.PostEvent(self.parent, StatusEvent(status=position))
[b91c736]	179
[1bf33c1]	180	def _onRemove(self, event):
	181	"""
[6c0568b]	182	Remove a plottable from the graph and render the graph
	183	@param event: Menu event
[1bf33c1]	184	"""
[6c0568b]	185	## Check if there is a selected graph to remove
[1debb29]	186	if not self.graph.selected_plottable == None and\
	187	self.graph.selected_plottable in self.plots.keys():
	188	color=self.graph.plottables[self.plots[self.graph.selected_plottable]]
	189
	190	event = RemoveDataEvent(data =self.plots[self.graph.selected_plottable])
	191	wx.PostEvent(self.parent, event)
[1bf33c1]	192	self.graph.delete(self.plots[self.graph.selected_plottable])
	193	del self.plots[self.graph.selected_plottable]
[1debb29]	194	## increment graph color
	195	self.graph.color += color
[1bf33c1]	196	self.graph.render(self)
	197	self.subplot.figure.canvas.draw_idle()
[1debb29]	198
[1bf33c1]	199
	200
	201	def onContextMenu(self, event):
	202	"""
	203	1D plot context menu
	204	@param event: wx context event
	205	"""
	206	slicerpop = PanelMenu()
	207	slicerpop.set_plots(self.plots)
	208	slicerpop.set_graph(self.graph)
	209
[9a585d0]	210	# Various plot options
	211	id = wx.NewId()
	212	slicerpop.Append(id,'&Save image', 'Save image as PNG')
	213	wx.EVT_MENU(self, id, self.onSaveImage)
	214
	215	id = wx.NewId()
	216	slicerpop.Append(id,'&Print image', 'Print image ')
[18eba35]	217	wx.EVT_MENU(self, id, self.onPrint)
	218
	219	id = wx.NewId()
	220	slicerpop.Append(id,'&Print Preview', 'image preview for print')
	221	wx.EVT_MENU(self, id, self.onPrinterPreview)
[9a585d0]	222
	223	slicerpop.AppendSeparator()
	224	item_list = self.parent.get_context_menu(self.graph)
[6c0568b]	225
[9a585d0]	226	if (not item_list==None) and (not len(item_list)==0):
	227	for item in item_list:
	228	try:
	229	id = wx.NewId()
	230	slicerpop.Append(id, item[0], item[1])
	231	wx.EVT_MENU(self, id, item[2])
	232	except:
[6c0568b]	233	wx.PostEvent(self.parent, StatusEvent(status=\
	234	"ModelPanel1D.onContextMenu: bad menu item %s"%sys.exc_value))
[9a585d0]	235	pass
	236	slicerpop.AppendSeparator()
[6c0568b]	237
[1bf33c1]	238	if self.graph.selected_plottable in self.plots:
	239	plot = self.plots[self.graph.selected_plottable]
	240	id = wx.NewId()
	241	name = plot.name
[6c0568b]	242
[42d27f2]	243	slicerpop.Append(id, "&Save points" )
[1bf33c1]	244	self.action_ids[str(id)] = plot
	245	wx.EVT_MENU(self, id, self._onSave)
[31482fc]	246
[1bf33c1]	247	id = wx.NewId()
	248	slicerpop.Append(id, "Remove %s curve" % name)
	249	self.action_ids[str(id)] = plot
	250	wx.EVT_MENU(self, id, self._onRemove)
[9a585d0]	251	slicerpop.AppendSeparator()
[1bf33c1]	252	# Option to hide
	253	#TODO: implement functionality to hide a plottable (legend click)
[d468daa]	254
[1bf33c1]	255	if self.graph.selected_plottable in self.plots:
[0b16ee3]	256	selected_plot= self.plots[self.graph.selected_plottable]
	257	#if self.plots[self.graph.selected_plottable].name in self.err_dy.iterkeys()\
	258	# and self.errors_hide:
	259	if selected_plot.__class__.__name__=="Data1D":
[a85f622]	260	if numpy.all(selected_plot.dy==0):
[0b16ee3]	261	id = wx.NewId()
[a85f622]	262	slicerpop.Append(id, '&Show errors')
[0b16ee3]	263	wx.EVT_MENU(self, id, self._on_add_errors)
[a85f622]	264	elif selected_plot.dy !=None and selected_plot.dy != []:
[dd66fbd]	265	id = wx.NewId()
[18eba35]	266	slicerpop.Append(id, '&Hide Error bars')
[dd66fbd]	267	wx.EVT_MENU(self, id, self._on_remove_errors)
[3cc533e]	268
	269	id = wx.NewId()
	270	slicerpop.Append(id, '&Linear fit')
	271	wx.EVT_MENU(self, id, self.onFitting)
[1bf33c1]	272
[9a585d0]	273	slicerpop.AppendSeparator()
[6c0568b]	274
[1bf33c1]	275	id = wx.NewId()
	276	slicerpop.Append(id, '&Change scale')
	277	wx.EVT_MENU(self, id, self._onProperties)
[6c0568b]	278
[1bf33c1]	279	id = wx.NewId()
	280	slicerpop.Append(id, '&Reset Graph')
[d468daa]	281	wx.EVT_MENU(self, id, self.onResetGraph)
[6d920cd]	282
[1bf33c1]	283	pos = event.GetPosition()
	284	pos = self.ScreenToClient(pos)
	285	self.PopupMenu(slicerpop, pos)
[18eba35]	286
	287
[869c368]	288	def _on_remove_errors(self, evt):
[6c0568b]	289	"""
	290	Save name and dy of data in dictionary self.err_dy
	291	Create a new data1D with the same x, y
	292	vector and dy with zeros.
	293	post self.err_dy as event (ErrorDataEvent) for any object
	294	which wants to reconstruct the initial data.
	295	@param evt: Menu event
	296	"""
[869c368]	297	if not self.graph.selected_plottable == None:
[6c0568b]	298	## store existing dy
[869c368]	299	name =self.plots[self.graph.selected_plottable].name
	300	dy = self.plots[self.graph.selected_plottable].dy
	301	self.err_dy[name]= dy
[6c0568b]	302	## Create a new dy for a new plottable
[18eba35]	303	import numpy
	304	dy= numpy.zeros(len(self.plots[self.graph.selected_plottable].y))
[0b16ee3]	305	selected_plot= self.plots[self.graph.selected_plottable]
	306
	307	if selected_plot.__class__.__name__=="Data1D":
[8068b52]	308	# Make sure that we can pass a basic Data1D
	309	dxl = None
	310	dxw = None
	311	if hasattr(selected_plot, "dxl"):
	312	dxl = selected_plot.dxl
	313	if hasattr(selected_plot, "dxw"):
	314	dxw = selected_plot.dxw
[4ac8556]	315	new_plot = Data1D( x=selected_plot.x,
[3b69ca6]	316	y= selected_plot.y,
	317	dx=selected_plot.dx,
[4ac8556]	318	dy=dy)
	319	new_plot.dxl = dxl
	320	new_plot.dxw = dxw
	321
[0b16ee3]	322	else:
[3b69ca6]	323	new_plot = Theory1D(x=selected_plot.x,y=selected_plot.y,dy=dy)
[869c368]	324	new_plot.interactive = True
[31482fc]	325	self.errors_hide = True
[869c368]	326	new_plot.name = self.plots[self.graph.selected_plottable].name
	327	if hasattr(self.plots[self.graph.selected_plottable], "group_id"):
	328	new_plot.group_id = self.plots[self.graph.selected_plottable].group_id
	329	new_plot.id = self.plots[self.graph.selected_plottable].id
	330	else:
	331	new_plot.group_id = str(time.time())
	332	new_plot.id = str(time.time())
	333	label, unit = self.plots[self.graph.selected_plottable].get_xaxis()
	334	new_plot.xaxis(label, unit)
	335	label, unit = self.plots[self.graph.selected_plottable].get_yaxis()
	336	new_plot.yaxis(label, unit)
[6c0568b]	337	## save the color of the selected plottable before it is deleted
[869c368]	338	color=self.graph.plottables[self.plots[self.graph.selected_plottable]]
[18eba35]	339	self.graph.delete(self.plots[self.graph.selected_plottable])
[6c0568b]	340	## add newly created plottable to the graph with the save color
[0b16ee3]	341	self.graph.color += color
[dd66fbd]	342	self.graph.add(new_plot,color)
[6c0568b]	343	## transforming the view of the new data into the same of the previous data
[869c368]	344	self._onEVT_FUNC_PROPERTY()
[6c0568b]	345	## save the plot
[869c368]	346	self.plots[self.graph.selected_plottable]=new_plot
[6c0568b]	347	## Render the graph
[869c368]	348	self.graph.render(self)
	349	self.subplot.figure.canvas.draw_idle()
[18eba35]	350
	351	event = ErrorDataEvent(err_dy=self.err_dy)
	352	wx.PostEvent(self.parent, event)
[1bf33c1]	353
[6c0568b]	354
[1bf33c1]	355	def _on_add_errors(self, evt):
	356	"""
[6c0568b]	357	create a new data1D witht the errors saved in self.err_dy
	358	to show errors of the plot.
[1bf33c1]	359	Compute reasonable errors for a data set without
	360	errors and transorm the plottable to a Data1D
[6c0568b]	361	@param evt: Menu event
[1bf33c1]	362	"""
[4ac8556]	363
[1bf33c1]	364
[1debb29]	365	if not self.graph.selected_plottable == None \
	366	and self.graph.selected_plottable in self.plots.keys():
[6c0568b]	367	##Reset the flag to display the hide option on the context menu
[31482fc]	368	self.errors_hide = False
[6c0568b]	369	## restore dy
[1bf33c1]	370	length = len(self.plots[self.graph.selected_plottable].x)
	371	dy = numpy.zeros(length)
[3b69ca6]	372
[869c368]	373	selected_plot= self.plots[self.graph.selected_plottable]
[0b16ee3]	374
[869c368]	375	try:
	376	dy = self.err_dy[selected_plot.name]
[0b16ee3]	377
[869c368]	378	except:
[bb5c1c7]	379	#for i in range(length):
	380	#dy[i] = math.sqrt(self.plots[self.graph.selected_plottable].y[i])
[0b16ee3]	381	if hasattr(selected_plot,"dy"):
	382	dy= selected_plot.dy
	383	else:
	384	dy = numpy.zeros(selected_plot.dy)
	385
[6c0568b]	386	## Create a new plottable data1D
[0b16ee3]	387	if selected_plot.__class__.__name__=="Data1D":
[8068b52]	388	# Make sure that we can pass a basic Data1D
	389	dxl = None
	390	dxw = None
	391	if hasattr(selected_plot, "dxl"):
	392	dxl = selected_plot.dxl
	393	if hasattr(selected_plot, "dxw"):
	394	dxw = selected_plot.dxw
[4ac8556]	395	new_plot = Data1D( x=selected_plot.x,
[3b69ca6]	396	y= selected_plot.y,
	397	dx=selected_plot.dx,
[4ac8556]	398	dy=dy)
	399	new_plot.dxl = dxl
	400	new_plot.dxw = dxw
	401
[0b16ee3]	402	else:
	403	## Create a new plottable Theory1D
[3b69ca6]	404	new_plot = Theory1D(x=selected_plot.x,y=selected_plot.y,dy=dy)
	405
[1bf33c1]	406	new_plot.interactive = True
	407	new_plot.name = self.plots[self.graph.selected_plottable].name
	408	if hasattr(self.plots[self.graph.selected_plottable], "group_id"):
	409	new_plot.group_id = self.plots[self.graph.selected_plottable].group_id
[d1dd9d4]	410	new_plot.id = self.plots[self.graph.selected_plottable].id
[1bf33c1]	411	else:
	412	new_plot.group_id = str(time.time())
[d1dd9d4]	413	new_plot.id = str(time.time())
[1bf33c1]	414
	415	label, unit = self.plots[self.graph.selected_plottable].get_xaxis()
	416	new_plot.xaxis(label, unit)
	417	label, unit = self.plots[self.graph.selected_plottable].get_yaxis()
	418	new_plot.yaxis(label, unit)
[6c0568b]	419	## save the color of the selected plottable before it is deleted
[18eba35]	420	color=self.graph.plottables[self.plots[self.graph.selected_plottable]]
	421	self.graph.delete(self.plots[self.graph.selected_plottable])
[0b16ee3]	422	self.graph.color += color
[6c0568b]	423	## add newly created plottable to the graph with the save color
[18eba35]	424	self.graph.add(new_plot, color)
[6c0568b]	425	## transforming the view of the new data into the same of the previous data
[ffd23b5]	426	self._onEVT_FUNC_PROPERTY()
[6c0568b]	427	## save the plot
[1bf33c1]	428	self.plots[self.graph.selected_plottable]=new_plot
[6c0568b]	429	## render the graph with its new content
[1bf33c1]	430	self.graph.render(self)
[8bd764d]	431	self.subplot.figure.canvas.draw_idle()
	432
[6c0568b]	433
[42d27f2]	434	def _onsaveTXT(self, path):
	435	"""
	436	Save file as txt
[1abcb04]	437
	438	TODO: Refactor and remove this method. See TODO in _onSave.
[42d27f2]	439	"""
	440	data = self.plots[self.graph.selected_plottable]
	441
	442	if not path == None:
	443	out = open(path, 'w')
	444	has_errors = True
	445	if data.dy==None or data.dy==[]:
	446	has_errors = False
	447
	448	# Sanity check
	449	if has_errors:
	450	try:
	451	if len(data.y) != len(data.dy):
	452
	453	has_errors = False
	454	except:
	455	has_errors = False
[8bd764d]	456
[42d27f2]	457	if has_errors:
	458	out.write("<X> <Y> <dY>\n")
	459	else:
	460	out.write("<X> <Y>\n")
	461
	462	for i in range(len(data.x)):
	463	if has_errors:
	464	out.write("%g %g %g\n" % (data.x[i],
	465	data.y[i],
	466	data.dy[i]))
	467	else:
	468	out.write("%g %g\n" % (data.x[i],
	469	data.y[i]))
	470
	471	out.close()
[6063b16]	472	try:
	473	self._default_save_location = os.path.dirname(path)
	474	except:
	475	pass
[8bd764d]	476
[1bf33c1]	477	def _onSave(self, evt):
	478	"""
	479	Save a data set to a text file
	480	@param evt: Menu event
	481	"""
[f0a9a3cc]	482
[1bf33c1]	483	id = str(evt.GetId())
	484	if id in self.action_ids:
	485
	486	path = None
[5fe5871c]	487	wildcard = "Text files (.txt)\|.txt\|"\
[7959f297]	488	"CanSAS 1D files(.xml)\|.xml"
[6063b16]	489	dlg = wx.FileDialog(self, "Choose a file",
	490	self._default_save_location, "",wildcard , wx.SAVE)
[42d27f2]	491
[1bf33c1]	492	if dlg.ShowModal() == wx.ID_OK:
	493	path = dlg.GetPath()
	494	mypath = os.path.basename(path)
[1abcb04]	495
	496	#TODO: This is bad design. The DataLoader is designed to recognize extensions.
	497	# It should be a simple matter of calling the .save(file, data, '.xml') method
[f0a9a3cc]	498	# of the DataLoader.loader.Loader class.
	499	from DataLoader.loader import Loader
	500	#Instantiate a loader
	501	loader = Loader()
	502	data = self.plots[self.graph.selected_plottable]
	503	format=".txt"
	504	if os.path.splitext(mypath)[1].lower() == format:
	505	self._onsaveTXT( path)
	506
	507	format= ".xml"
	508	if os.path.splitext(mypath)[1].lower() ==format:
	509	loader.save( path, data, format)
	510	try:
	511	self._default_save_location = os.path.dirname(path)
	512	except:
	513	pass
[1bf33c1]	514	dlg.Destroy()
[5fe5871c]	515
[f0a9a3cc]	516
	517
	518
[5fe5871c]	519
[6c0568b]	520
[1bf33c1]	521
[6c0568b]	522
[1bf33c1]	523

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SasView

source: sasview/guiframe/local_perspectives/plotting/Plotter1D.py @ a618972

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