Plotter1D.py @ 2389bd4

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 2389bd4 was a85f622, checked in by Jae Cho <jhjcho@…>, 15 years ago
changed and removed "hide error" from context menu for data generated from model plot
Property mode set to `100644`
File size: 19.7 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
	108	is_new = True
	109	if event.plot.name in self.plots.keys():
	110	# Check whether the class of plottable changed
	111	if not event.plot.__class__==self.plots[event.plot.name].__class__:
[ab8f936]	112	#overwrite a plottable using the same name
[1bf33c1]	113	self.graph.delete(self.plots[event.plot.name])
	114	else:
[ab8f936]	115	# plottable is already draw on the panel
[1bf33c1]	116	is_new = False
[ffd23b5]	117
[1bf33c1]	118	if is_new:
[ab8f936]	119	# a new plottable overwrites a plotted one using the same id
	120	for plottable in self.plots.itervalues():
[a7bd562]	121	if hasattr(event.plot,"id") and hasattr(plottable, "id"):
[e48a62e]	122	if event.plot.id==plottable.id :
	123	self.graph.delete(plottable)
[ab8f936]	124
[1bf33c1]	125	self.plots[event.plot.name] = event.plot
	126	self.graph.add(self.plots[event.plot.name])
	127	else:
[ab8f936]	128	#replot the graph
[1bf33c1]	129	self.plots[event.plot.name].x = event.plot.x
	130	self.plots[event.plot.name].y = event.plot.y
	131	self.plots[event.plot.name].dy = event.plot.dy
	132	if hasattr(event.plot, 'dx') and hasattr(self.plots[event.plot.name], 'dx'):
	133	self.plots[event.plot.name].dx = event.plot.dx
[31482fc]	134
[1bf33c1]	135	#TODO: Should re-factor this
[6c0568b]	136	## for all added plot the option to hide error show be displayed first
[31482fc]	137	#self.errors_hide = 0
[6c0568b]	138	## Set axis labels
[1bf33c1]	139	self.graph.xaxis(event.plot._xaxis, event.plot._xunit)
	140	self.graph.yaxis(event.plot._yaxis, event.plot._yunit)
[6c0568b]	141	## Set the view scale for all plots
[1bf33c1]	142	self._onEVT_FUNC_PROPERTY()
[6c0568b]	143	## render the graph
[1bf33c1]	144	self.graph.render(self)
	145	self.subplot.figure.canvas.draw_idle()
[31482fc]	146	if self.errors_hide:
	147	self._on_remove_errors(evt=None)
	148	else:
	149	self._on_add_errors( evt=None)
	150	return
	151
[1bf33c1]	152	def onLeftDown(self,event):
[6c0568b]	153	"""
	154	left button down and ready to drag
	155	Display the position of the mouse on the statusbar
	156	"""
[1bf33c1]	157	PlotPanel.onLeftDown(self, event)
	158	ax = event.inaxes
	159	if ax != None:
	160	position = "x: %8.3g y: %8.3g" % (event.xdata, event.ydata)
	161	wx.PostEvent(self.parent, StatusEvent(status=position))
	162
[6c0568b]	163
[1bf33c1]	164	def _onRemove(self, event):
	165	"""
[6c0568b]	166	Remove a plottable from the graph and render the graph
	167	@param event: Menu event
[1bf33c1]	168	"""
[6c0568b]	169	## Check if there is a selected graph to remove
[1debb29]	170	if not self.graph.selected_plottable == None and\
	171	self.graph.selected_plottable in self.plots.keys():
	172	color=self.graph.plottables[self.plots[self.graph.selected_plottable]]
	173
	174	event = RemoveDataEvent(data =self.plots[self.graph.selected_plottable])
	175	wx.PostEvent(self.parent, event)
[1bf33c1]	176	self.graph.delete(self.plots[self.graph.selected_plottable])
	177	del self.plots[self.graph.selected_plottable]
[1debb29]	178	## increment graph color
	179	self.graph.color += color
[1bf33c1]	180	self.graph.render(self)
	181	self.subplot.figure.canvas.draw_idle()
[1debb29]	182
[1bf33c1]	183
	184
	185	def onContextMenu(self, event):
	186	"""
	187	1D plot context menu
	188	@param event: wx context event
	189	"""
	190	slicerpop = PanelMenu()
	191	slicerpop.set_plots(self.plots)
	192	slicerpop.set_graph(self.graph)
	193
[9a585d0]	194	# Various plot options
	195	id = wx.NewId()
	196	slicerpop.Append(id,'&Save image', 'Save image as PNG')
	197	wx.EVT_MENU(self, id, self.onSaveImage)
	198
	199	id = wx.NewId()
	200	slicerpop.Append(id,'&Print image', 'Print image ')
[18eba35]	201	wx.EVT_MENU(self, id, self.onPrint)
	202
	203	id = wx.NewId()
	204	slicerpop.Append(id,'&Print Preview', 'image preview for print')
	205	wx.EVT_MENU(self, id, self.onPrinterPreview)
[9a585d0]	206
	207	slicerpop.AppendSeparator()
	208	item_list = self.parent.get_context_menu(self.graph)
[6c0568b]	209
[9a585d0]	210	if (not item_list==None) and (not len(item_list)==0):
	211	for item in item_list:
	212	try:
	213	id = wx.NewId()
	214	slicerpop.Append(id, item[0], item[1])
	215	wx.EVT_MENU(self, id, item[2])
	216	except:
[6c0568b]	217	wx.PostEvent(self.parent, StatusEvent(status=\
	218	"ModelPanel1D.onContextMenu: bad menu item %s"%sys.exc_value))
[9a585d0]	219	pass
	220	slicerpop.AppendSeparator()
[6c0568b]	221
[1bf33c1]	222	if self.graph.selected_plottable in self.plots:
	223	plot = self.plots[self.graph.selected_plottable]
	224	id = wx.NewId()
	225	name = plot.name
[6c0568b]	226
[42d27f2]	227	slicerpop.Append(id, "&Save points" )
[1bf33c1]	228	self.action_ids[str(id)] = plot
	229	wx.EVT_MENU(self, id, self._onSave)
[31482fc]	230
[1bf33c1]	231	id = wx.NewId()
	232	slicerpop.Append(id, "Remove %s curve" % name)
	233	self.action_ids[str(id)] = plot
	234	wx.EVT_MENU(self, id, self._onRemove)
[9a585d0]	235	slicerpop.AppendSeparator()
[1bf33c1]	236	# Option to hide
	237	#TODO: implement functionality to hide a plottable (legend click)
[d468daa]	238
[1bf33c1]	239	if self.graph.selected_plottable in self.plots:
[0b16ee3]	240	selected_plot= self.plots[self.graph.selected_plottable]
	241	#if self.plots[self.graph.selected_plottable].name in self.err_dy.iterkeys()\
	242	# and self.errors_hide:
	243	if selected_plot.__class__.__name__=="Data1D":
[a85f622]	244	if numpy.all(selected_plot.dy==0):
[0b16ee3]	245	id = wx.NewId()
[a85f622]	246	slicerpop.Append(id, '&Show errors')
[0b16ee3]	247	wx.EVT_MENU(self, id, self._on_add_errors)
[a85f622]	248	elif selected_plot.dy !=None and selected_plot.dy != []:
[dd66fbd]	249	id = wx.NewId()
[18eba35]	250	slicerpop.Append(id, '&Hide Error bars')
[dd66fbd]	251	wx.EVT_MENU(self, id, self._on_remove_errors)
[3cc533e]	252
	253	id = wx.NewId()
	254	slicerpop.Append(id, '&Linear fit')
	255	wx.EVT_MENU(self, id, self.onFitting)
[1bf33c1]	256
[9a585d0]	257	slicerpop.AppendSeparator()
[6c0568b]	258
[1bf33c1]	259	id = wx.NewId()
	260	slicerpop.Append(id, '&Change scale')
	261	wx.EVT_MENU(self, id, self._onProperties)
[6c0568b]	262
[1bf33c1]	263	id = wx.NewId()
	264	slicerpop.Append(id, '&Reset Graph')
[d468daa]	265	wx.EVT_MENU(self, id, self.onResetGraph)
[6d920cd]	266
[1bf33c1]	267	pos = event.GetPosition()
	268	pos = self.ScreenToClient(pos)
	269	self.PopupMenu(slicerpop, pos)
[18eba35]	270
	271
[869c368]	272	def _on_remove_errors(self, evt):
[6c0568b]	273	"""
	274	Save name and dy of data in dictionary self.err_dy
	275	Create a new data1D with the same x, y
	276	vector and dy with zeros.
	277	post self.err_dy as event (ErrorDataEvent) for any object
	278	which wants to reconstruct the initial data.
	279	@param evt: Menu event
	280	"""
[869c368]	281	if not self.graph.selected_plottable == None:
[6c0568b]	282	## store existing dy
[869c368]	283	name =self.plots[self.graph.selected_plottable].name
	284	dy = self.plots[self.graph.selected_plottable].dy
	285	self.err_dy[name]= dy
[6c0568b]	286	## Create a new dy for a new plottable
[18eba35]	287	import numpy
	288	dy= numpy.zeros(len(self.plots[self.graph.selected_plottable].y))
[0b16ee3]	289	selected_plot= self.plots[self.graph.selected_plottable]
	290
	291	if selected_plot.__class__.__name__=="Data1D":
[8068b52]	292	# Make sure that we can pass a basic Data1D
	293	dxl = None
	294	dxw = None
	295	if hasattr(selected_plot, "dxl"):
	296	dxl = selected_plot.dxl
	297	if hasattr(selected_plot, "dxw"):
	298	dxw = selected_plot.dxw
[4ac8556]	299	new_plot = Data1D( x=selected_plot.x,
[3b69ca6]	300	y= selected_plot.y,
	301	dx=selected_plot.dx,
[4ac8556]	302	dy=dy)
	303	new_plot.dxl = dxl
	304	new_plot.dxw = dxw
	305
[0b16ee3]	306	else:
[3b69ca6]	307	new_plot = Theory1D(x=selected_plot.x,y=selected_plot.y,dy=dy)
[869c368]	308	new_plot.interactive = True
[31482fc]	309	self.errors_hide = True
[869c368]	310	new_plot.name = self.plots[self.graph.selected_plottable].name
	311	if hasattr(self.plots[self.graph.selected_plottable], "group_id"):
	312	new_plot.group_id = self.plots[self.graph.selected_plottable].group_id
	313	new_plot.id = self.plots[self.graph.selected_plottable].id
	314	else:
	315	new_plot.group_id = str(time.time())
	316	new_plot.id = str(time.time())
	317	label, unit = self.plots[self.graph.selected_plottable].get_xaxis()
	318	new_plot.xaxis(label, unit)
	319	label, unit = self.plots[self.graph.selected_plottable].get_yaxis()
	320	new_plot.yaxis(label, unit)
[6c0568b]	321	## save the color of the selected plottable before it is deleted
[869c368]	322	color=self.graph.plottables[self.plots[self.graph.selected_plottable]]
[18eba35]	323	self.graph.delete(self.plots[self.graph.selected_plottable])
[6c0568b]	324	## add newly created plottable to the graph with the save color
[0b16ee3]	325	self.graph.color += color
[dd66fbd]	326	self.graph.add(new_plot,color)
[6c0568b]	327	## transforming the view of the new data into the same of the previous data
[869c368]	328	self._onEVT_FUNC_PROPERTY()
[6c0568b]	329	## save the plot
[869c368]	330	self.plots[self.graph.selected_plottable]=new_plot
[6c0568b]	331	## Render the graph
[869c368]	332	self.graph.render(self)
	333	self.subplot.figure.canvas.draw_idle()
[18eba35]	334
	335	event = ErrorDataEvent(err_dy=self.err_dy)
	336	wx.PostEvent(self.parent, event)
[1bf33c1]	337
[6c0568b]	338
[1bf33c1]	339	def _on_add_errors(self, evt):
	340	"""
[6c0568b]	341	create a new data1D witht the errors saved in self.err_dy
	342	to show errors of the plot.
[1bf33c1]	343	Compute reasonable errors for a data set without
	344	errors and transorm the plottable to a Data1D
[6c0568b]	345	@param evt: Menu event
[1bf33c1]	346	"""
[4ac8556]	347
[1bf33c1]	348
[1debb29]	349	if not self.graph.selected_plottable == None \
	350	and self.graph.selected_plottable in self.plots.keys():
[6c0568b]	351	##Reset the flag to display the hide option on the context menu
[31482fc]	352	self.errors_hide = False
[6c0568b]	353	## restore dy
[1bf33c1]	354	length = len(self.plots[self.graph.selected_plottable].x)
	355	dy = numpy.zeros(length)
[3b69ca6]	356
[869c368]	357	selected_plot= self.plots[self.graph.selected_plottable]
[0b16ee3]	358
[869c368]	359	try:
	360	dy = self.err_dy[selected_plot.name]
[0b16ee3]	361
[869c368]	362	except:
[bb5c1c7]	363	#for i in range(length):
	364	#dy[i] = math.sqrt(self.plots[self.graph.selected_plottable].y[i])
[0b16ee3]	365	if hasattr(selected_plot,"dy"):
	366	dy= selected_plot.dy
	367	else:
	368	dy = numpy.zeros(selected_plot.dy)
	369
[6c0568b]	370	## Create a new plottable data1D
[0b16ee3]	371	if selected_plot.__class__.__name__=="Data1D":
[8068b52]	372	# Make sure that we can pass a basic Data1D
	373	dxl = None
	374	dxw = None
	375	if hasattr(selected_plot, "dxl"):
	376	dxl = selected_plot.dxl
	377	if hasattr(selected_plot, "dxw"):
	378	dxw = selected_plot.dxw
[4ac8556]	379	new_plot = Data1D( x=selected_plot.x,
[3b69ca6]	380	y= selected_plot.y,
	381	dx=selected_plot.dx,
[4ac8556]	382	dy=dy)
	383	new_plot.dxl = dxl
	384	new_plot.dxw = dxw
	385
[0b16ee3]	386	else:
	387	## Create a new plottable Theory1D
[3b69ca6]	388	new_plot = Theory1D(x=selected_plot.x,y=selected_plot.y,dy=dy)
	389
[1bf33c1]	390	new_plot.interactive = True
	391	new_plot.name = self.plots[self.graph.selected_plottable].name
	392	if hasattr(self.plots[self.graph.selected_plottable], "group_id"):
	393	new_plot.group_id = self.plots[self.graph.selected_plottable].group_id
[d1dd9d4]	394	new_plot.id = self.plots[self.graph.selected_plottable].id
[1bf33c1]	395	else:
	396	new_plot.group_id = str(time.time())
[d1dd9d4]	397	new_plot.id = str(time.time())
[1bf33c1]	398
	399	label, unit = self.plots[self.graph.selected_plottable].get_xaxis()
	400	new_plot.xaxis(label, unit)
	401	label, unit = self.plots[self.graph.selected_plottable].get_yaxis()
	402	new_plot.yaxis(label, unit)
[6c0568b]	403	## save the color of the selected plottable before it is deleted
[18eba35]	404	color=self.graph.plottables[self.plots[self.graph.selected_plottable]]
	405	self.graph.delete(self.plots[self.graph.selected_plottable])
[0b16ee3]	406	self.graph.color += color
[6c0568b]	407	## add newly created plottable to the graph with the save color
[18eba35]	408	self.graph.add(new_plot, color)
[6c0568b]	409	## transforming the view of the new data into the same of the previous data
[ffd23b5]	410	self._onEVT_FUNC_PROPERTY()
[6c0568b]	411	## save the plot
[1bf33c1]	412	self.plots[self.graph.selected_plottable]=new_plot
[6c0568b]	413	## render the graph with its new content
[1bf33c1]	414	self.graph.render(self)
[8bd764d]	415	self.subplot.figure.canvas.draw_idle()
	416
[6c0568b]	417
[42d27f2]	418	def _onsaveTXT(self, path):
	419	"""
	420	Save file as txt
[1abcb04]	421
	422	TODO: Refactor and remove this method. See TODO in _onSave.
[42d27f2]	423	"""
	424	data = self.plots[self.graph.selected_plottable]
	425
	426	if not path == None:
	427	out = open(path, 'w')
	428	has_errors = True
	429	if data.dy==None or data.dy==[]:
	430	has_errors = False
	431
	432	# Sanity check
	433	if has_errors:
	434	try:
	435	if len(data.y) != len(data.dy):
	436
	437	has_errors = False
	438	except:
	439	has_errors = False
[8bd764d]	440
[42d27f2]	441	if has_errors:
	442	out.write("<X> <Y> <dY>\n")
	443	else:
	444	out.write("<X> <Y>\n")
	445
	446	for i in range(len(data.x)):
	447	if has_errors:
	448	out.write("%g %g %g\n" % (data.x[i],
	449	data.y[i],
	450	data.dy[i]))
	451	else:
	452	out.write("%g %g\n" % (data.x[i],
	453	data.y[i]))
	454
	455	out.close()
[6063b16]	456	try:
	457	self._default_save_location = os.path.dirname(path)
	458	except:
	459	pass
[8bd764d]	460
[1bf33c1]	461	def _onSave(self, evt):
	462	"""
	463	Save a data set to a text file
	464	@param evt: Menu event
	465	"""
[f0a9a3cc]	466
[1bf33c1]	467	id = str(evt.GetId())
	468	if id in self.action_ids:
	469
	470	path = None
[5fe5871c]	471	wildcard = "Text files (.txt)\|.txt\|"\
[7959f297]	472	"CanSAS 1D files(.xml)\|.xml"
[6063b16]	473	dlg = wx.FileDialog(self, "Choose a file",
	474	self._default_save_location, "",wildcard , wx.SAVE)
[42d27f2]	475
[1bf33c1]	476	if dlg.ShowModal() == wx.ID_OK:
	477	path = dlg.GetPath()
	478	mypath = os.path.basename(path)
[1abcb04]	479
	480	#TODO: This is bad design. The DataLoader is designed to recognize extensions.
	481	# It should be a simple matter of calling the .save(file, data, '.xml') method
[f0a9a3cc]	482	# of the DataLoader.loader.Loader class.
	483	from DataLoader.loader import Loader
	484	#Instantiate a loader
	485	loader = Loader()
	486	data = self.plots[self.graph.selected_plottable]
	487	format=".txt"
	488	if os.path.splitext(mypath)[1].lower() == format:
	489	self._onsaveTXT( path)
	490
	491	format= ".xml"
	492	if os.path.splitext(mypath)[1].lower() ==format:
	493	loader.save( path, data, format)
	494	try:
	495	self._default_save_location = os.path.dirname(path)
	496	except:
	497	pass
[1bf33c1]	498	dlg.Destroy()
[5fe5871c]	499
[f0a9a3cc]	500
	501
	502
[5fe5871c]	503
[6c0568b]	504
[1bf33c1]	505
[6c0568b]	506
[1bf33c1]	507

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SasView

source: sasview/guiframe/local_perspectives/plotting/Plotter1D.py @ 2389bd4

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