fitting.py @ 0c975ab

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 0c975ab was 908b817, checked in by Gervaise Alina <gervyh@…>, 13 years ago
edit menu fitting label
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2
3	################################################################################
4	#This software was developed by the University of Tennessee as part of the
5	#Distributed Data Analysis of Neutron Scattering Experiments (DANSE)
6	#project funded by the US National Science Foundation.
7	#
8	#See the license text in license.txt
9	#
10	#copyright 2009, University of Tennessee
11	################################################################################
12
13
14	import re
15	import sys
16	import wx
17	import logging
18	import numpy
19	import string
20	import time
21	from copy import deepcopy
22	import models
23	import fitpage
24
25
26	from DataLoader.loader import Loader
27	from sans.guiframe.dataFitting import Data2D
28	from sans.guiframe.dataFitting import Data1D
29	from sans.guiframe.events import NewPlotEvent
30	from sans.guiframe.events import StatusEvent
31	from sans.guiframe.events import EVT_SLICER_PANEL
32	from sans.guiframe.events import EVT_REMOVE_DATA
33	from sans.guiframe.events import EVT_SLICER_PARS_UPDATE
34	from sans.guiframe.gui_style import GUIFRAME_ID
35	from sans.guiframe.plugin_base import PluginBase
36
37	from .console import ConsoleUpdate
38	from .fitproblem import FitProblem
39	from .fitpanel import FitPanel
40	from .fit_thread import FitThread
41	from .pagestate import Reader
42	from .fitpage import Chi2UpdateEvent
43
44	DEFAULT_BEAM = 0.005
45	DEFAULT_QMIN = 0.001
46	DEFAULT_QMAX = 0.13
47	DEFAULT_NPTS = 50
48	MAX_NBR_DATA = 4
49
50
51	(PageInfoEvent, EVT_PAGE_INFO) = wx.lib.newevent.NewEvent()
52
53
54
55	class Plugin(PluginBase):
56	"""
57	Fitting plugin is used to perform fit
58	"""
59	def __init__(self, standalone=False):
60	PluginBase.__init__(self, name="Fitting", standalone=standalone)
61
62	#list of panel to send to guiframe
63	self.mypanels = []
64	# reference to the current running thread
65	self.calc_2D = None
66	self.calc_1D = None
67	self.fit_thread_list = {}
68	self.residuals = None
69	self.fit_panel = None
70	# Start with a good default
71	self.elapsed = 0.022
72	# the type of optimizer selected, park or scipy
73	self.fitter = None
74	self.fit_panel = None
75	#let fit ready
76	self.fitproblem_count = None
77	#Flag to let the plug-in know that it is running stand alone
78	self.standalone = True
79	## dictionary of page closed and id
80	self.closed_page_dict = {}
81	## Fit engine
82	self._fit_engine = 'scipy'
83	## Relative error desired in the sum of squares (float); scipy only
84	self.ftol=1.49012e-08
85	#List of selected data
86	self.selected_data_list = []
87	## list of slicer panel created to display slicer parameters and results
88	self.slicer_panels = []
89	# model 2D view
90	self.model2D_id = None
91	#keep reference of the simultaneous fit page
92	self.sim_page = None
93	self.index_model = 0
94	#Create a reader for fit page's state
95	self.state_reader = None
96	self._extensions = '.fitv'
97	self.scipy_id = wx.NewId()
98	self.park_id = wx.NewId()
99
100	self.temp_state = []
101	self.state_index = 0
102	self.sfile_ext = None
103	# take care of saving data, model and page associated with each other
104	self.page_finder = {}
105	# Log startup
106	logging.info("Fitting plug-in started")
107
108	def populate_menu(self, owner):
109	"""
110	Create a menu for the Fitting plug-in
111
112	:param id: id to create a menu
113	:param owner: owner of menu
114
115	:return: list of information to populate the main menu
116
117	"""
118	#Menu for fitting
119	self.menu1 = wx.Menu()
120	id1 = wx.NewId()
121	simul_help = "Add new fit panel"
122	self.menu1.Append(id1, '&New Fit Page',simul_help)
123	wx.EVT_MENU(owner, id1, self.on_add_new_page)
124	self.menu1.AppendSeparator()
125	id1 = wx.NewId()
126	simul_help = "Simultaneous Fit"
127	self.menu1.Append(id1, '&Simultaneous Fit',simul_help)
128	wx.EVT_MENU(owner, id1, self.on_add_sim_page)
129	self.menu1.AppendSeparator()
130	#Set park engine
131
132	scipy_help= "Scipy Engine: Perform Simple fit. More in Help window...."
133	self.menu1.AppendCheckItem(self.scipy_id, "Simple Fit [Scipy]",scipy_help)
134	wx.EVT_MENU(owner, self.scipy_id, self._onset_engine_scipy)
135
136	park_help = "Park Engine: Perform Complex fit. More in Help window...."
137	self.menu1.AppendCheckItem(self.park_id, "Complex Fit [Park]",park_help)
138	wx.EVT_MENU(owner, self.park_id, self._onset_engine_park)
139
140	self.menu1.FindItemById(self.scipy_id).Check(True)
141	self.menu1.FindItemById(self.park_id).Check(False)
142	#create menubar items
143	return [(self.menu1, self.sub_menu)]
144
145	def on_add_sim_page(self, event):
146	"""
147	Create a page to access simultaneous fit option
148	"""
149	if self.sim_page != None:
150	msg= "Simultaneous Fit page already opened"
151	wx.PostEvent(self.parent, StatusEvent(status= msg))
152	return
153
154	self.sim_page= self.fit_panel.add_sim_page()
155
156	def help(self, evt):
157	"""
158	Show a general help dialog.
159	"""
160	from help_panel import HelpWindow
161	frame = HelpWindow(None, -1, 'HelpWindow')
162	frame.Show(True)
163
164	def get_context_menu(self, plotpanel=None):
165	"""
166	Get the context menu items available for P(r).them allow fitting option
167	for Data2D and Data1D only.
168
169	:param graph: the Graph object to which we attach the context menu
170
171	:return: a list of menu items with call-back function
172
173	:note: if Data1D was generated from Theory1D
174	the fitting option is not allowed
175
176	"""
177	graph = plotpanel.graph
178	fit_option = "Select data for fitting"
179	fit_hint = "Dialog with fitting parameters "
180
181	if graph.selected_plottable not in plotpanel.plots:
182	return []
183	item = plotpanel.plots[graph.selected_plottable]
184	if item.__class__.__name__ is "Data2D":
185	if hasattr(item,"is_data"):
186	if item.is_data:
187	return [[fit_option, fit_hint, self._onSelect]]
188	else:
189	return []
190	return [[fit_option, fit_hint, self._onSelect]]
191	else:
192
193	# if is_data is true , this in an actual data loaded
194	#else it is a data created from a theory model
195	if hasattr(item,"is_data"):
196	if item.is_data:
197	return [[fit_option, fit_hint,
198	self._onSelect]]
199	else:
200	return []
201	return []
202
203
204	def get_panels(self, parent):
205	"""
206	Create and return a list of panel objects
207	"""
208	self.parent = parent
209	#self.parent.Bind(EVT_FITSTATE_UPDATE, self.on_set_state_helper)
210	# Creation of the fit panel
211	self.fit_panel = FitPanel(parent=self.parent, manager=self)
212	self.on_add_new_page(event=None)
213	#Set the manager for the main panel
214	self.fit_panel.set_manager(self)
215	# List of windows used for the perspective
216	self.perspective = []
217	self.perspective.append(self.fit_panel.window_name)
218
219	#index number to create random model name
220	self.index_model = 0
221	self.index_theory= 0
222	self.parent.Bind(EVT_SLICER_PANEL, self._on_slicer_event)
223
224	self.parent.Bind(EVT_REMOVE_DATA, self._closed_fitpage)
225	self.parent.Bind(EVT_SLICER_PARS_UPDATE, self._onEVT_SLICER_PANEL)
226	self.parent._mgr.Bind(wx.aui.EVT_AUI_PANE_CLOSE,self._onclearslicer)
227	#Create reader when fitting panel are created
228	self.state_reader = Reader(self.set_state)
229	#append that reader to list of available reader
230	loader = Loader()
231	loader.associate_file_reader(".fitv", self.state_reader)
232	loader.associate_file_reader(".svs", self.state_reader)
233	from sans.perspectives.calculator.sld_panel import SldPanel
234	#Send the fitting panel to guiframe
235	self.mypanels.append(self.fit_panel)
236	self.mypanels.append(SldPanel(parent=self.parent, base=self.parent))
237	return self.mypanels
238
239	def clear_panel(self):
240	"""
241	"""
242	self.fit_panel.clear_panel()
243
244	def set_default_perspective(self):
245	"""
246	Call back method that True to notify the parent that the current plug-in
247	can be set as default perspective.
248	when returning False, the plug-in is not candidate for an automatic
249	default perspective setting
250	"""
251	return True
252
253	def delete_data(self, data):
254	"""
255	delete the given data from panel
256	"""
257	self.fit_panel.delete_data(data)
258
259	def set_data(self, data_list=None):
260	"""
261	receive a list of data to fit
262	"""
263	if data_list is None:
264	data_list = []
265	selected_data_list = []
266	if len(data_list) > MAX_NBR_DATA :
267	from fitting_widgets import DataDialog
268	dlg = DataDialog(data_list=data_list, nb_data=MAX_NBR_DATA)
269	if dlg.ShowModal() == wx.ID_OK:
270	selected_data_list = dlg.get_data()
271	else:
272	selected_data_list = data_list
273	try:
274	for data in selected_data_list:
275	self.add_fit_page(data=data)
276	wx.PostEvent(self.parent, NewPlotEvent(plot=data,
277	title=str(data.title)))
278
279	except:
280	raise
281	#msg = "Fitting Set_data: " + str(sys.exc_value)
282	#wx.PostEvent(self.parent, StatusEvent(status=msg, info="error"))
283
284	def set_top_panel(self):
285	"""
286	Close default (welcome) panel
287	"""
288	if 'default' in self.parent.panels:
289	self.parent.on_close_welcome_panel()
290
291
292	def set_theory(self, theory_list=None):
293	"""
294	"""
295	#set the model state for a given theory_state:
296	for item in theory_list:
297	try:
298	_, theory_state = item
299	self.fit_panel.set_model_state(theory_state)
300	except:
301	msg = "Fitting: cannot deal with the theory received"
302	logging.error("set_theory " + msg + "\n" + str(sys.exc_value))
303	wx.PostEvent(self.parent, StatusEvent(status=msg, info="error"))
304
305	def set_state(self, state=None, datainfo=None, format=None):
306	"""
307	Call-back method for the fit page state reader.
308	This method is called when a .fitv/.svs file is loaded.
309
310	: param state: PageState object
311	: param datainfo: data
312	"""
313	#state = self.state_reader.get_state()
314	if state != None:
315	state = state.clone()
316	# store fitting state in temp_state
317	self.temp_state.append(state)
318	else:
319	self.temp_state = []
320	# index to start with for a new set_state
321	self.state_index = 0
322	# state file format
323	self.sfile_ext = format
324
325	self.on_set_state_helper(event=None)
326
327	def on_set_state_helper(self,event=None):
328	"""
329	Set_state_helper. This actually sets state after plotting data from state file.
330
331	: event: FitStateUpdateEvent called by dataloader.plot_data from guiframe
332	"""
333	if len(self.temp_state) == 0:
334	if self.state_index==0 and len(self.mypanels) <= 0 and self.sfile_ext =='.svs':
335	self.fit_panel.add_default_pages()
336	self.temp_state = []
337	self.state_index = 0
338	return
339
340	try:
341	# Load fitting state
342	state = self.temp_state[self.state_index]
343	#panel state should have model selection to set_state
344	if state.formfactorcombobox != None:
345	#set state
346	data = self.parent.create_gui_data(state.data)
347	data.group_id = state.data.group_id
348	self.parent.add_data(data_list={data.id:data})
349	wx.PostEvent(self.parent, NewPlotEvent(plot=data,
350	title=data.title))
351	#need to be fix later make sure we are sendind guiframe.data
352	#to panel
353	state.data = data
354	page = self.fit_panel.set_state(state)
355	else:
356	#just set data because set_state won't work
357	data = self.parent.create_gui_data(state.data)
358	data.group_id = state.data.group_id
359	self.parent.add_data(data_list={data.id:data})
360	wx.PostEvent(self.parent, NewPlotEvent(plot=data,
361	title=data.title))
362	page = self.add_fit_page(data)
363	caption = page.window_name
364	self.store_data(page=page.id, data=data, caption=caption)
365	self.mypanels.append(page)
366
367	# get ready for the next set_state
368	self.state_index += 1
369
370	#reset state variables to default when all set_state is finished.
371	if len(self.temp_state) == self.state_index:
372
373	self.temp_state = []
374	#self.state_index = 0
375	# Make sure the user sees the fitting panel after loading
376	#self.parent.set_perspective(self.perspective)
377	self.on_perspective(event=None)
378	except:
379	self.state_index==0
380	self.temp_state = []
381	raise
382
383	def save_fit_state(self, filepath, fitstate):
384	"""
385	save fit page state into file
386	"""
387	self.state_reader.write(filename=filepath, fitstate=fitstate)
388
389	def set_fit_range(self, uid, qmin, qmax):
390	"""
391	Set the fitting range of a given page
392	"""
393	self.page_finder[uid].set_range(qmin=qmin, qmax=qmax)
394
395	def schedule_for_fit(self,value=0, uid=None,fitproblem =None):
396	"""
397	Set the fit problem field to 0 or 1 to schedule that problem to fit.
398	Schedule the specified fitproblem or get the fit problem related to
399	the current page and set value.
400
401	:param value: integer 0 or 1
402	:param fitproblem: fitproblem to schedule or not to fit
403
404	"""
405	if fitproblem !=None:
406	fitproblem.schedule_tofit(value)
407	else:
408	self.page_finder[uid].schedule_tofit(value)
409
410	def get_page_finder(self):
411	"""
412	return self.page_finder used also by simfitpage.py
413	"""
414	return self.page_finder
415
416	def set_page_finder(self,modelname,names,values):
417	"""
418	Used by simfitpage.py to reset a parameter given the string constrainst.
419
420	:param modelname: the name ot the model for with the parameter has to reset
421	:param value: can be a string in this case.
422	:param names: the paramter name
423
424	:note: expecting park used for fit.
425
426	"""
427	sim_page_id = self.sim_page.uid
428	for uid, value in self.page_finder.iteritems():
429	if uid != sim_page_id:
430	list = value.get_model()
431	model = list[0]
432	if model.name == modelname:
433	value.set_model_param(names, values)
434	break
435
436	def split_string(self,item):
437	"""
438	receive a word containing dot and split it. used to split parameterset
439	name into model name and parameter name example: ::
440
441	paramaterset (item) = M1.A
442	Will return model_name = M1 , parameter name = A
443
444	"""
445	if string.find(item,".")!=-1:
446	param_names= re.split("\.",item)
447	model_name=param_names[0]
448	##Assume max len is 3; eg., M0.radius.width
449	if len(param_names) == 3:
450	param_name=param_names[1]+"."+param_names[2]
451	else:
452	param_name=param_names[1]
453	return model_name,param_name
454
455	def set_ftol(self, ftol=None):
456	"""
457	Set ftol: Relative error desired in the sum of chi squares.
458	"""
459	# check if it is flaot
460	try:
461	f_tol = float(ftol)
462	except:
463	# default
464	f_tol = 1.49012e-08
465
466	self.ftol = f_tol
467
468	def stop_fit(self, uid):
469	"""
470	Stop the fit engine
471	"""
472	if uid in self.fit_thread_list.keys():
473	calc_fit = self.fit_thread_list[uid]
474	if calc_fit is not None and calc_fit.isrunning():
475	calc_fit.stop()
476	msg = "Fit stop!"
477	wx.PostEvent(self.parent, StatusEvent(status=msg, type="stop"))
478	#set the fit button label of page when fit stop is trigger from
479	#simultaneous fit pane
480	if self.sim_page is not None and uid == self.sim_page.uid:
481	for uid, value in self.page_finder.iteritems():
482	if value.get_scheduled() == 1:
483	if uid in self.fit_panel.opened_pages.keys():
484	panel = self.fit_panel.opened_pages[uid]
485	panel. _on_fit_complete()
486
487	def set_smearer(self, uid, smearer, qmin=None, qmax=None, draw=True,
488	enable2D=False):
489	"""
490	Get a smear object and store it to a fit problem
491
492	:param smearer: smear object to allow smearing data
493
494	"""
495	if uid not in self.page_finder.keys():
496	msg = "Cannot find ID: %s in page_finder" % str(uid)
497	raise ValueError, msg
498	self.page_finder[uid].set_smearer(smearer)
499	self.page_finder[uid].set_enable2D(enable2D)
500	if draw:
501	## draw model 1D with smeared data
502	data = self.page_finder[uid].get_fit_data()
503	model = self.page_finder[uid].get_model()
504	if model is None:
505	return
506	enable1D = True
507	enable2D = self.page_finder[uid].get_enable2D()
508	if enable2D:
509	enable1D = False
510
511	## if user has already selected a model to plot
512	## redraw the model with data smeared
513	smear = self.page_finder[uid].get_smearer()
514	self.draw_model(model=model, data=data, page_id=uid, smearer=smear,
515	enable1D=enable1D, enable2D=enable2D,
516	qmin=qmin, qmax=qmax)
517
518	def draw_model(self, model, page_id, data=None, smearer=None,
519	enable1D=True, enable2D=False,
520	state=None,
521	toggle_mode_on=False,
522	qmin=DEFAULT_QMIN, qmax=DEFAULT_QMAX,
523	qstep=DEFAULT_NPTS,
524	update_chisqr=True):
525	"""
526	Draw model.
527
528	:param model: the model to draw
529	:param name: the name of the model to draw
530	:param data: the data on which the model is based to be drawn
531	:param description: model's description
532	:param enable1D: if true enable drawing model 1D
533	:param enable2D: if true enable drawing model 2D
534	:param qmin: Range's minimum value to draw model
535	:param qmax: Range's maximum value to draw model
536	:param qstep: number of step to divide the x and y-axis
537	:param update_chisqr: update chisqr [bool]
538
539	"""
540	if data.__class__.__name__ == "Data1D" or not enable2D:
541	## draw model 1D with no loaded data
542	self._draw_model1D(model=model,
543	data=data,
544	page_id=page_id,
545	enable1D=enable1D,
546	smearer=smearer,
547	qmin=qmin,
548	qmax=qmax,
549	toggle_mode_on=toggle_mode_on,
550	state=state,
551	qstep=qstep,
552	update_chisqr=update_chisqr)
553	else:
554	## draw model 2D with no initial data
555	self._draw_model2D(model=model,
556	page_id=page_id,
557	data=data,
558	enable2D=enable2D,
559	smearer=smearer,
560	qmin=qmin,
561	qmax=qmax,
562	state=state,
563	toggle_mode_on=toggle_mode_on,
564	qstep=qstep,
565	update_chisqr=update_chisqr)
566
567	def onFit(self):
568	"""
569	perform fit
570	"""
571	## count the number of fitproblem schedule to fit
572	fitproblem_count = 0
573	for value in self.page_finder.values():
574	if value.get_scheduled() == 1:
575	fitproblem_count += 1
576
577	## if simultaneous fit change automatically the engine to park
578	if fitproblem_count > 1:
579	self._on_change_engine(engine='park')
580
581	self.fitproblem_count = fitproblem_count
582
583	from sans.fit.Fitting import Fit
584	fitter = Fit(self._fit_engine)
585
586	if self._fit_engine == "park":
587	engineType = "Simultaneous Fit"
588	else:
589	engineType = "Single Fit"
590
591	fproblemId = 0
592	self.current_pg = None
593	list_page_id = []
594	for page_id, value in self.page_finder.iteritems():
595	try:
596	if value.get_scheduled() == 1:
597	#Get list of parameters name to fit
598	pars = []
599	templist = []
600
601	page = self.fit_panel.get_page_by_id(page_id)
602	templist = page.get_param_list()
603	# missing fit parameters
604	#if not templist:
605	# return
606	# have the list
607	for element in templist:
608	name = str(element[1])
609	pars.append(name)
610	#Set Engine (model , data) related to the page on
611	self._fit_helper(value=value, pars=pars,
612	fitter=fitter,
613	fitproblem_id=fproblemId,
614	title=engineType)
615	list_page_id.append(page_id)
616	fproblemId += 1
617	current_page_id = page_id
618	except:
619	#raise
620	msg= "%s error: %s" % (engineType, sys.exc_value)
621	wx.PostEvent(self.parent, StatusEvent(status=msg, info="error",
622	type="stop"))
623	return
624	## If a thread is already started, stop it
625	#if self.calc_fit!= None and self.calc_fit.isrunning():
626	# self.calc_fit.stop()
627	#Handler used for park engine displayed message
628	handler = ConsoleUpdate(parent=self.parent,
629	manager=self,
630	improvement_delta=0.1)
631
632	## perform single fit
633	if fitproblem_count == 1:
634	calc_fit = FitThread(handler = handler,
635	fn=fitter,
636	pars=pars,
637	page_id=list_page_id,
638	completefn=self._single_fit_completed,
639	ftol=self.ftol)
640	else:
641	current_page_id = self.sim_page.uid
642	## Perform more than 1 fit at the time
643	calc_fit = FitThread(handler=handler,
644	fn=fitter,
645	page_id=list_page_id,
646	updatefn=handler.update_fit,
647	ftol=self.ftol)
648	self.fit_thread_list[current_page_id] = calc_fit
649	calc_fit.queue()
650	self.ready_fit(calc_fit=calc_fit)
651
652
653	def ready_fit(self, calc_fit):
654	"""
655	Ready for another fit
656	"""
657	if self.fitproblem_count != None and self.fitproblem_count > 1:
658	calc_fit.ready(2.5)
659
660	else:
661	time.sleep(0.4)
662
663	def remove_plot(self, uid, theory=False):
664	"""
665	remove model plot when a fit page is closed
666	"""
667	fitproblem = self.page_finder[uid]
668	data = fitproblem.get_fit_data()
669	model = fitproblem.get_model()
670	plot_id = None
671	if model is not None:
672	plot_id = data.id + name
673	if theory:
674	plot_id = data.id
675	group_id = data.group_id
676	wx.PostEvent(self.parent, NewPlotEvent(id=plot_id,
677	group_id=group_id,
678	action='remove'))
679
680	def store_data(self, uid, data=None, caption=None):
681	"""
682	Helper to save page reference into the plug-in
683
684	:param page: page to store
685
686	"""
687	#create a fitproblem storing all link to data,model,page creation
688	if not uid in self.page_finder.keys():
689	self.page_finder[uid] = FitProblem()
690	self.page_finder[uid].set_fit_data(data)
691	self.page_finder[uid].set_fit_tab_caption(caption)
692
693	def on_add_new_page(self, event=None):
694	"""
695	ask fit panel to create a new empty page
696	"""
697	try:
698	page = self.fit_panel.add_empty_page()
699	page_caption = page.window_name
700	# add data associated to the page created
701	if page != None:
702	self.store_data(uid=page.uid, caption=page_caption,
703	data=page.get_data())
704	wx.PostEvent(self.parent, StatusEvent(status="Page Created",
705	info="info"))
706	else:
707	msg = "Page was already Created"
708	wx.PostEvent(self.parent, StatusEvent(status=msg,
709	info="warning"))
710	self.set_top_panel()
711	except:
712	raise
713	#msg = "Creating Fit page: %s"%sys.exc_value
714	#wx.PostEvent(self.parent, StatusEvent(status=msg, info="error"))
715
716
717	def add_fit_page(self, data):
718	"""
719	given a data, ask to the fitting panel to create a new fitting page,
720	get this page and store it into the page_finder of this plug-in
721	"""
722	page = self.fit_panel.set_data(data)
723	page_caption = page.window_name
724	#append Data1D to the panel containing its theory
725	#if theory already plotted
726	if page.uid in self.page_finder:
727	theory_data = self.page_finder[page.uid].get_theory_data()
728	if issubclass(data.__class__, Data2D):
729	data.group_id = wx.NewId()
730	if theory_data is not None:
731	group_id = str(page.uid) + " Model1D"
732	wx.PostEvent(self.parent,
733	NewPlotEvent(group_id=group_id,
734	action="delete"))
735	self.parent.update_data(prev_data=theory_data, new_data=data)
736	else:
737	if theory_data is not None:
738	group_id = str(page.uid) + " Model2D"
739	data.group_id = theory_data.group_id
740	wx.PostEvent(self.parent,
741	NewPlotEvent(group_id=group_id,
742	action="delete"))
743	self.parent.update_data(prev_data=theory_data, new_data=data)
744
745	self.store_data(uid=page.uid, data=data, caption=page.window_name)
746	if self.sim_page is not None:
747	self.sim_page.draw_page()
748	return page
749
750	def _onEVT_SLICER_PANEL(self, event):
751	"""
752	receive and event telling to update a panel with a name starting with
753	event.panel_name. this method update slicer panel for a given interactor.
754
755	:param event: contains type of slicer , paramaters for updating the panel
756	and panel_name to find the slicer 's panel concerned.
757	"""
758	for item in self.parent.panels:
759	if self.parent.panels[item].window_caption.startswith(event.panel_name):
760	self.parent.panels[item].set_slicer(event.type, event.params)
761
762	self.parent._mgr.Update()
763
764	def _closed_fitpage(self, event):
765	"""
766	request fitpanel to close a given page when its unique data is removed
767	from the plot. close fitpage only when the a loaded data is removed
768	"""
769	if event is None or event.data is None:
770	return
771	if hasattr(event.data,"is_data"):
772	if not event.data.is_data or \
773	event.data.__class__.__name__ == "Data1D":
774	self.fit_panel.close_page_with_data(event.data)
775
776	def _add_page_onmenu(self, name, fitproblem=None):
777	"""
778	Add name of a closed page of fitpanel in a menu
779	"""
780	list = self.menu1.GetMenuItems()
781	for item in list:
782	if name == item.GetItemLabel():
783	self.closed_page_dict[name][1] = fitproblem
784
785	if not name in self.closed_page_dict.keys():
786	# Post paramters
787	event_id = wx.NewId()
788	self.menu1.Append(event_id, name, "Show %s fit panel" % name)
789	self.closed_page_dict[name]= [event_id, fitproblem]
790	wx.EVT_MENU(self.parent, event_id, self._open_closed_page)
791
792	def _open_closed_page(self, event):
793	"""
794	reopen a closed page
795	"""
796	for name, value in self.closed_page_dict.iteritems():
797	if event.GetId() in value:
798	uid,fitproblem = value
799	if name !="Model":
800	data= fitproblem.get_fit_data()
801	page = self.fit_panel.add_fit_page(data=data, reset=True)
802	if fitproblem != None:
803	self.page_finder[uid] = fitproblem
804	if self.sim_page != None:
805	self.sim_page.draw_page()
806
807	else:
808	model = fitproblem
809	self.fit_panel.add_model_page(model=model, topmenu=True,
810	reset= True)
811	break
812
813	def _reset_schedule_problem(self, value=0):
814	"""
815	unschedule or schedule all fitproblem to be fit
816	"""
817	for page_id in self.page_finder.keys():
818	self.page_finder[page_id].schedule_tofit(value)
819
820	def _fit_helper(self, pars, value, fitproblem_id,fitter, title="Single Fit " ):
821	"""
822	helper for fitting
823	"""
824	metadata = value.get_fit_data()
825	model = value.get_model()
826	smearer = value.get_smearer()
827	qmin, qmax = value.get_range()
828	self.fit_id = fitproblem_id
829	#Create list of parameters for fitting used
830	templist = []
831
832	try:
833	#Extra list of parameters and their constraints
834	listOfConstraint = []
835
836	param = value.get_model_param()
837	if len(param) > 0:
838	for item in param:
839	## check if constraint
840	if item[0] != None and item[1] != None:
841	listOfConstraint.append((item[0],item[1]))
842
843	#Do the single fit
844	fitter.set_model(model, self.fit_id,
845	pars, constraints=listOfConstraint)
846
847	fitter.set_data(data=metadata, id=self.fit_id,
848	smearer=smearer, qmin=qmin, qmax=qmax)
849
850	fitter.select_problem_for_fit(id=self.fit_id,
851	value=value.get_scheduled())
852	value.clear_model_param()
853	except:
854	raise
855	#msg = title + " error: %s" % sys.exc_value
856	#wx.PostEvent(self.parent, StatusEvent(status=msg, type="stop"))
857
858	def _onSelect(self,event):
859	"""
860	when Select data to fit a new page is created .Its reference is
861	added to self.page_finder
862	"""
863	self.panel = event.GetEventObject()
864	Plugin.on_perspective(self, event=event)
865	for plottable in self.panel.graph.plottables:
866	if plottable.__class__.__name__ in ["Data1D", "Theory1D"]:
867	if plottable.name == self.panel.graph.selected_plottable:
868	data = plottable
869	self.add_fit_page(data=data)
870	return
871	else:
872	data = plottable
873	self.add_fit_page(data=data)
874	self.set_top_panel()
875
876	def update_fit(self, result=None, msg=""):
877	"""
878	"""
879	print "update_fit result", result
880
881	def _single_fit_completed(self, result, pars, page_id, elapsed=None):
882	"""
883	Display fit result on one page of the notebook.
884
885	:param result: result of fit
886	:param pars: list of names of parameters fitted
887	:param current_pg: the page where information will be displayed
888	:param qmin: the minimum value of x to replot the model
889	:param qmax: the maximum value of x to replot model
890
891	"""
892	try:
893	if result == None:
894	msg= "Single Fitting did not converge!!!"
895	wx.PostEvent(self.parent,
896	StatusEvent(status=msg,
897	info="warning",
898	type="stop"))
899	return
900	if not numpy.isfinite(result.fitness) or \
901	numpy.any(result.pvec == None) or \
902	not numpy.all(numpy.isfinite(result.pvec)):
903	msg = "Single Fitting did not converge!!!"
904	wx.PostEvent(self.parent,
905	StatusEvent(status=msg,
906	info="warning",
907	type="stop"))
908	return
909	for uid in page_id:
910	value = self.page_finder[uid]
911	model = value.get_model()
912	page_id = uid
913
914	param_name = []
915	for name in pars:
916	param_name.append(name)
917
918	cpage = self.fit_panel.get_page_by_id(uid)
919	cpage.onsetValues(result.fitness,
920	param_name, result.pvec,result.stderr)
921	cpage._on_fit_complete()
922
923	except ValueError:
924	msg = "Single Fitting did not converge!!!"
925	wx.PostEvent(self.parent, StatusEvent(status=msg, info="error",
926	type="stop"))
927	return
928	except:
929	raise
930	#msg = "Single Fit completed but Following"
931	#msg += " error occurred:%s" % sys.exc_value
932	#wx.PostEvent(self.parent, StatusEvent(status=msg, info="error",
933	# type="stop"))
934	return
935
936	def _simul_fit_completed(self, result, page_id,pars=None, elapsed=None):
937	"""
938	Parameter estimation completed,
939	display the results to the user
940
941	:param alpha: estimated best alpha
942	:param elapsed: computation time
943
944	"""
945	if page_id is None:
946	page_id = []
947	## fit more than 1 model at the same time
948	try:
949	msg = ""
950	if result == None:
951	msg= "Complex Fitting did not converge!!!"
952	wx.PostEvent(self.parent, StatusEvent(status=msg,
953	type="stop"))
954	return
955	if not numpy.isfinite(result.fitness) or \
956	numpy.any(result.pvec == None) or not \
957	numpy.all(numpy.isfinite(result.pvec)):
958	msg= "Simultaneous Fitting did not converge!!!"
959	wx.PostEvent(self.parent, StatusEvent(status=msg,type="stop"))
960	return
961
962	for uid in page_id:
963	value = self.page_finder[uid]
964	model = value.get_model()
965	data = value.get_fit_data()
966	small_param_name = []
967	small_out = []
968	small_cov = []
969	#Separate result in to data corresponding to each page
970	for p in result.parameters:
971	model_name, param_name = self.split_string(p.name)
972	if model.name == model_name:
973	p_name= model.name+"."+param_name
974	if p.name == p_name:
975	if p.value != None and numpy.isfinite(p.value):
976	small_out.append(p.value)
977	small_param_name.append(param_name)
978	small_cov.append(p.stderr)
979	# Display result on each page
980	cpage = self.fit_panel.get_page_by_id(uid)
981	cpage.onsetValues(result.fitness,
982	small_param_name,
983	small_out,small_cov)
984	cpage._on_fit_complete()
985
986	except Exception:
987	msg = "Complex Fitting did not converge!!!"
988	wx.PostEvent(self.parent, StatusEvent(status=msg, info="error",
989	type="stop"))
990	return
991
992	except:
993	msg = "Simultaneous Fit completed"
994	msg += " but Following error occurred:%s" % sys.exc_value
995	wx.PostEvent(self.parent, StatusEvent(status=msg, type="stop"))
996
997	def _on_show_panel(self, event):
998	"""
999	"""
1000	pass
1001
1002	def _onset_engine_park(self,event):
1003	"""
1004	set engine to park
1005	"""
1006	self._on_change_engine('park')
1007
1008	def _onset_engine_scipy(self,event):
1009	"""
1010	set engine to scipy
1011	"""
1012	self._on_change_engine('scipy')
1013
1014	def _on_slicer_event(self, event):
1015	"""
1016	Receive a panel as event and send it to guiframe
1017
1018	:param event: event containing a panel
1019
1020	"""
1021	if event.panel is not None:
1022	new_panel = event.panel
1023	self.slicer_panels.append(event.panel)
1024	# Set group ID if available
1025	event_id = self.parent.popup_panel(new_panel)
1026	#self.menu3.Append(event_id, new_panel.window_caption,
1027	# "Show %s plot panel" % new_panel.window_caption)
1028	# Set id to allow us to reference the panel later
1029
1030	new_panel.uid = event_id
1031	self.mypanels.append(new_panel)
1032
1033	def _onclearslicer(self, event):
1034	"""
1035	Clear the boxslicer when close the panel associate with this slicer
1036	"""
1037	name =event.GetPane().caption
1038
1039	for panel in self.slicer_panels:
1040	if panel.window_caption==name:
1041
1042	for item in self.parent.panels:
1043	if hasattr(self.parent.panels[item],"uid"):
1044	if self.parent.panels[item].uid ==panel.base.uid:
1045	self.parent.panels[item].onClearSlicer(event)
1046	self.parent._mgr.Update()
1047	break
1048	break
1049
1050	def _return_engine_type(self):
1051	"""
1052	return the current type of engine
1053	"""
1054	return self._fit_engine
1055
1056
1057	def _on_change_engine(self, engine='park'):
1058	"""
1059	Allow to select the type of engine to perform fit
1060
1061	:param engine: the key work of the engine
1062
1063	"""
1064	## saving fit engine name
1065	self._fit_engine = engine
1066	## change menu item state
1067	if engine=="park":
1068	self.menu1.FindItemById(self.park_id).Check(True)
1069	self.menu1.FindItemById(self.scipy_id).Check(False)
1070	else:
1071	self.menu1.FindItemById(self.park_id).Check(False)
1072	self.menu1.FindItemById(self.scipy_id).Check(True)
1073	## post a message to status bar
1074	msg = "Engine set to: %s" % self._fit_engine
1075	wx.PostEvent(self.parent,
1076	StatusEvent(status=msg))
1077	## send the current engine type to fitpanel
1078	self.fit_panel._on_engine_change(name=self._fit_engine)
1079
1080	def _on_model_panel(self, evt):
1081	"""
1082	react to model selection on any combo box or model menu.plot the model
1083
1084	:param evt: wx.combobox event
1085
1086	"""
1087	model = evt.model
1088	uid = evt.uid
1089	qmin = evt.qmin
1090	qmax = evt.qmax
1091	smearer = evt.smearer
1092
1093	if model == None:
1094	return
1095
1096	if self.page_finder[uid].get_model() is None:
1097	model.name = "M" + str(self.index_model)
1098	self.index_model += 1
1099	else:
1100	model.name = self.page_finder[uid].get_model().name
1101	# save the name containing the data name with the appropriate model
1102	self.page_finder[uid].set_model(model)
1103	self.page_finder[uid].set_range(qmin=qmin, qmax=qmax)
1104	if self.sim_page is not None:
1105	self.sim_page.draw_page()
1106
1107	def _update1D(self,x, output):
1108	"""
1109	Update the output of plotting model 1D
1110	"""
1111	msg = "Plot updating ... "
1112	wx.PostEvent(self.parent, StatusEvent(status=msg,type="update"))
1113	self.ready_fit()
1114
1115
1116	def _fill_default_model2D(self, theory, page_id, qmax,qstep, qmin=None):
1117	"""
1118	fill Data2D with default value
1119
1120	:param theory: Data2D to fill
1121
1122	"""
1123	from DataLoader.data_info import Detector, Source
1124
1125	detector = Detector()
1126	theory.detector.append(detector)
1127	theory.source= Source()
1128
1129	## Default values
1130	theory.detector[0].distance= 8000 # mm
1131	theory.source.wavelength= 6 # A
1132	theory.detector[0].pixel_size.x= 5 # mm
1133	theory.detector[0].pixel_size.y= 5 # mm
1134
1135	theory.detector[0].beam_center.x= qmax
1136	theory.detector[0].beam_center.y= qmax
1137
1138	## create x_bins and y_bins of the model 2D
1139	pixel_width_x = theory.detector[0].pixel_size.x
1140	pixel_width_y = theory.detector[0].pixel_size.y
1141	center_x = theory.detector[0].beam_center.x/pixel_width_x
1142	center_y = theory.detector[0].beam_center.y/pixel_width_y
1143
1144	# theory default: assume the beam
1145	#center is located at the center of sqr detector
1146	xmax = qmax
1147	xmin = -qmax
1148	ymax = qmax
1149	ymin = -qmax
1150
1151	x= numpy.linspace(start= -1*qmax,
1152	stop=qmax,
1153	num=qstep,
1154	endpoint=True)
1155	y = numpy.linspace(start=-1*qmax,
1156	stop= qmax,
1157	num= qstep,
1158	endpoint=True)
1159
1160	## use data info instead
1161	new_x = numpy.tile(x, (len(y),1))
1162	new_y = numpy.tile(y, (len(x),1))
1163	new_y = new_y.swapaxes(0,1)
1164
1165	# all data reuire now in 1d array
1166	qx_data = new_x.flatten()
1167	qy_data = new_y.flatten()
1168
1169	q_data = numpy.sqrt(qx_dataqx_data+qy_dataqy_data)
1170	# set all True (standing for unmasked) as default
1171	mask = numpy.ones(len(qx_data), dtype = bool)
1172
1173	# calculate the range of qx and qy: this way,
1174	# it is a little more independent
1175	x_size = xmax- xmin
1176	y_size = ymax -ymin
1177
1178	# store x and y bin centers in q space
1179	x_bins = x
1180	y_bins = y
1181	# bin size: x- & y-directions
1182	xstep = x_size/len(x_bins-1)
1183	ystep = y_size/len(y_bins-1)
1184
1185	#theory.data = numpy.zeros(len(mask))
1186	theory.err_data = numpy.ones(len(mask))
1187	theory.qx_data = qx_data
1188	theory.qy_data = qy_data
1189	theory.q_data = q_data
1190	theory.mask = mask
1191	theory.x_bins = x_bins
1192	theory.y_bins = y_bins
1193
1194	# max and min taking account of the bin sizes
1195	theory.xmin = xmin
1196	theory.xmax = xmax
1197	theory.ymin = ymin
1198	theory.ymax = ymax
1199	theory.group_id = str(page_id) + " Model2D"
1200	theory.id = str(page_id) + " Model2D"
1201
1202	def _complete1D(self, x,y, page_id, elapsed,index,model,
1203	toggle_mode_on=False,state=None,
1204	data=None, update_chisqr=True):
1205	"""
1206	Complete plotting 1D data
1207	"""
1208	try:
1209	new_plot = Data1D(x=x, y=y)
1210	new_plot.is_data = False
1211	new_plot.symbol = GUIFRAME_ID.CURVE_SYMBOL_NUM
1212	if data != None:
1213	_xaxis, _xunit = data.get_xaxis()
1214	_yaxis, _yunit = data.get_yaxis()
1215	new_plot.title = data.name
1216	#if the theory is already plotted use the same group id
1217	#to replot
1218	if page_id in self.page_finder:
1219	theory_data = self.page_finder[page_id].get_theory_data()
1220	if theory_data is not None:
1221	data.group_id = theory_data.group_id
1222	#data is plotted before the theory, then take its group_id
1223	#assign to the new theory
1224	new_plot.group_id = data.group_id
1225
1226	else:
1227	_xaxis, _xunit = "\\rm{Q}", 'A^{-1}'
1228	_yaxis, _yunit = "\\rm{Intensity} ", "cm^{-1}"
1229	new_plot.title = "Analytical model 1D "
1230	#find a group id to plot theory without data
1231	new_plot.group_id = str(page_id) + " Model1D"
1232	new_plot.id = str(page_id) + " Model1D"
1233
1234	#find if this theory was already plotted and replace that plot given
1235	#the same id
1236
1237	theory_data = self.page_finder[page_id].get_theory_data()
1238	if theory_data is not None:
1239	new_plot.id = theory_data.id
1240
1241	new_plot.name = model.name + " ["+ str(model.__class__.__name__)+ "]"
1242	new_plot.xaxis(_xaxis, _xunit)
1243	new_plot.yaxis(_yaxis, _yunit)
1244	if toggle_mode_on:
1245	new_plot.id = str(page_id) + " Model"
1246	wx.PostEvent(self.parent,
1247	NewPlotEvent(group_id=str(page_id) + " Model2D",
1248	action="Hide"))
1249
1250	self.page_finder[page_id].set_theory_data(new_plot)
1251	if data is None:
1252	data_id = None
1253	else:
1254	data_id = data.id
1255	self.parent.update_theory(data_id=data_id,
1256	theory=new_plot,
1257	state=state)
1258	current_pg = self.fit_panel.get_page_by_id(page_id)
1259	title = new_plot.title
1260	wx.PostEvent(self.parent, NewPlotEvent(plot=new_plot,
1261	title= str(title)))
1262
1263	self.page_finder[page_id].set_theory_data(new_plot)
1264
1265	if update_chisqr:
1266	wx.PostEvent(current_pg,
1267	Chi2UpdateEvent(output=self._cal_chisqr(data=data,
1268	page_id=page_id,
1269	index=index)))
1270	else:
1271	self._plot_residuals(page_id, data, index)
1272
1273	msg = "Plot 1D complete !"
1274	wx.PostEvent( self.parent, StatusEvent(status=msg, type="stop" ))
1275	#self.current_pg.state.theory_data = deepcopy(self.theory_data)
1276	except:
1277	raise
1278	#msg = " Error occurred when drawing %s Model 1D: " % new_plot.name
1279	#msg += " %s" % sys.exc_value
1280	#wx.PostEvent(self.parent, StatusEvent(status=msg, type="stop"))
1281
1282	def _update2D(self, output,time=None):
1283	"""
1284	Update the output of plotting model
1285	"""
1286	wx.PostEvent(self.parent, StatusEvent(status="Plot \
1287	#updating ... ", type="update"))
1288	self.ready_fit()
1289
1290	def _complete2D(self, image, data, model, page_id, elapsed, index, qmin,
1291	qmax, toggle_mode_on=False,state=None,qstep=DEFAULT_NPTS,
1292	update_chisqr=True):
1293	"""
1294	Complete get the result of modelthread and create model 2D
1295	that can be plot.
1296	"""
1297	err_image = numpy.zeros(numpy.shape(image))
1298
1299	new_plot= Data2D(image=image, err_image=err_image)
1300	new_plot.name = model.name
1301	new_plot.title = "Analytical model 2D "
1302	if data is None:
1303	self._fill_default_model2D(theory=new_plot,
1304	qmax=qmax,
1305	page_id=page_id,
1306	qstep=qstep,
1307	qmin= qmin)
1308
1309	else:
1310	new_plot.id = str(page_id) + " Model2D"
1311	new_plot.group_id = str(page_id) + " Model2D"
1312	new_plot.x_bins = data.x_bins
1313	new_plot.y_bins = data.y_bins
1314	new_plot.detector = data.detector
1315	new_plot.source = data.source
1316	new_plot.is_data = False
1317	new_plot.qx_data = data.qx_data
1318	new_plot.qy_data = data.qy_data
1319	new_plot.q_data = data.q_data
1320	#numpy.zeros(len(data.err_data))#data.err_data
1321	new_plot.err_data = err_image
1322	new_plot.mask = data.mask
1323	## plot boundaries
1324	new_plot.ymin = data.ymin
1325	new_plot.ymax = data.ymax
1326	new_plot.xmin = data.xmin
1327	new_plot.xmax = data.xmax
1328	title = data.title
1329	if len(title) > 1:
1330	new_plot.title = "Model2D for " + data.name
1331	new_plot.is_data = False
1332	new_plot.name = model.name + " ["+ str(model.__class__.__name__)+ "]"
1333
1334	theory_data = deepcopy(new_plot)
1335	theory_data.name = "Unknown"
1336	if toggle_mode_on:
1337	new_plot.id = str(page_id) + " Model"
1338	wx.PostEvent(self.parent,
1339	NewPlotEvent(group_id=str(page_id) + " Model1D",
1340	action="Hide"))
1341
1342	self.page_finder[page_id].set_theory_data(new_plot)
1343	if data is None:
1344	data_id = None
1345	else:
1346	data_id = data.id
1347	self.parent.update_theory(data_id=data_id,
1348	theory=new_plot,
1349	state=state)
1350	current_pg = self.fit_panel.get_page_by_id(page_id)
1351	title = new_plot.title
1352
1353	wx.PostEvent(self.parent, NewPlotEvent(plot=new_plot,
1354	title=title))
1355	self.page_finder[page_id].set_theory_data(new_plot)
1356	# Chisqr in fitpage
1357	if update_chisqr:
1358	wx.PostEvent(current_pg,
1359	Chi2UpdateEvent(output=\
1360	self._cal_chisqr(data=data,
1361	page_id=page_id,
1362	index=index)))
1363	else:
1364	self._plot_residuals(page_id, data, index)
1365	msg = "Plot 2D complete !"
1366	wx.PostEvent(self.parent, StatusEvent(status=msg, type="stop"))
1367
1368	def _draw_model2D(self, model, page_id, data=None, smearer=None,
1369	description=None, enable2D=False,
1370	state=None,
1371	toggle_mode_on=False,
1372	qmin=DEFAULT_QMIN, qmax=DEFAULT_QMAX,
1373	qstep=DEFAULT_NPTS,
1374	update_chisqr=True):
1375	"""
1376	draw model in 2D
1377
1378	:param model: instance of the model to draw
1379	:param description: the description of the model
1380	:param enable2D: when True allows to draw model 2D
1381	:param qmin: the minimum value to draw model 2D
1382	:param qmax: the maximum value to draw model 2D
1383	:param qstep: the number of division of Qx and Qy of the model to draw
1384
1385	"""
1386	x= numpy.linspace(start=-1*qmax,
1387	stop=qmax,
1388	num=qstep,
1389	endpoint=True)
1390	y = numpy.linspace(start= -1*qmax,
1391	stop=qmax,
1392	num=qstep,
1393	endpoint=True)
1394	if model is None:
1395	msg = "Panel with ID: %s does not contained model" % str(page_id)
1396	raise ValueError, msg
1397	## use data info instead
1398	if data is not None:
1399	## check if data2D to plot
1400	if hasattr(data, "x_bins"):
1401	enable2D = True
1402	x = data.x_bins
1403	y = data.y_bins
1404
1405	if not enable2D:
1406	return None, None
1407	try:
1408	from model_thread import Calc2D
1409	## If a thread is already started, stop it
1410	if (self.calc_2D is not None) and self.calc_2D.isrunning():
1411	self.calc_2D.stop()
1412	self.calc_2D = Calc2D(x=x,
1413	y=y,
1414	model=model,
1415	data=data,
1416	page_id=page_id,
1417	smearer=smearer,
1418	qmin=qmin,
1419	qmax=qmax,
1420	qstep=qstep,
1421	toggle_mode_on=toggle_mode_on,
1422	state=state,
1423	completefn=self._complete2D,
1424	#updatefn= self._update2D,
1425	update_chisqr=update_chisqr)
1426
1427	self.calc_2D.queue()
1428
1429	except:
1430	raise
1431	#msg = " Error occurred when drawing %s Model 2D: " % model.name
1432	#msg += " %s" % sys.exc_value
1433	#wx.PostEvent(self.parent, StatusEvent(status=msg))
1434
1435	def _draw_model1D(self, model, page_id, data=None, smearer=None,
1436	qmin=DEFAULT_QMIN, qmax=DEFAULT_QMAX,
1437	state=None,
1438	toggle_mode_on=False,
1439	qstep=DEFAULT_NPTS, update_chisqr=True,
1440	enable1D=True):
1441	"""
1442	Draw model 1D from loaded data1D
1443
1444	:param data: loaded data
1445	:param model: the model to plot
1446
1447	"""
1448	x= numpy.linspace(start=qmin,
1449	stop=qmax,
1450	num=qstep,
1451	endpoint=True
1452	)
1453	if data is not None:
1454	## check for data2D
1455	if hasattr(data,"x_bins"):
1456	return
1457	x = data.x
1458	if qmin == None :
1459	qmin == DEFAULT_QMIN
1460
1461	if qmax == None:
1462	qmax == DEFAULT_QMAX
1463	if not enable1D:
1464	return
1465	try:
1466	from model_thread import Calc1D
1467	## If a thread is already started, stop it
1468	if (self.calc_1D is not None) and self.calc_1D.isrunning():
1469	self.calc_1D.stop()
1470	self.calc_1D = Calc1D(x=x,
1471	data=data,
1472	model=model,
1473	page_id=page_id,
1474	qmin=qmin,
1475	qmax=qmax,
1476	smearer=smearer,
1477	state=state,
1478	toggle_mode_on=toggle_mode_on,
1479	completefn=self._complete1D,
1480	#updatefn = self._update1D,
1481	update_chisqr=update_chisqr)
1482
1483	self.calc_1D.queue()
1484
1485	except:
1486	msg = " Error occurred when drawing %s Model 1D: " % model.name
1487	msg += " %s" % sys.exc_value
1488	wx.PostEvent(self.parent, StatusEvent(status=msg))
1489
1490	def _cal_chisqr(self, page_id, data=None, index=None):
1491	"""
1492	Get handy Chisqr using the output from draw1D and 2D,
1493	instead of calling expansive CalcChisqr in guithread
1494	"""
1495	# default chisqr
1496	chisqr = None
1497
1498	# return None if data == None
1499	if data == None: return chisqr
1500
1501	# Get data: data I, theory I, and data dI in order
1502	if data.__class__.__name__ == "Data2D":
1503	if index == None:
1504	index = numpy.ones(len(data.data),ntype=bool)
1505	# get rid of zero error points
1506	index = index & (data.err_data != 0 )
1507	index = index & (numpy.isfinite(data.data))
1508	fn = data.data[index]
1509	theory_data = self.page_finder[page_id].get_theory_data()
1510	gn = theory_data.data[index]
1511	en = data.err_data[index]
1512	else:
1513	# 1 d theory from model_thread is only in the range of index
1514	if index == None:
1515	index = numpy.ones(len(data.y), ntype=bool)
1516	if data.dy == None or data.dy == []:
1517	dy = numpy.ones(len(data.y))
1518	else:
1519	## Set consitently w/AbstractFitengine:
1520	# But this should be corrected later.
1521	dy = deepcopy(data.dy)
1522	dy[dy==0] = 1
1523	fn = data.y[index]
1524	theory_data = self.page_finder[page_id].get_theory_data()
1525	gn = theory_data.y
1526	en = dy[index]
1527
1528	# residual
1529	res = (fn - gn) / en
1530	residuals = res[numpy.isfinite(res)]
1531	# get chisqr only w/finite
1532	chisqr = numpy.average(residuals * residuals)
1533
1534	self._plot_residuals(page_id, data, index)
1535	return chisqr
1536
1537
1538
1539	def _plot_residuals(self, page_id, data=None, index=None):
1540	"""
1541	Plot the residuals
1542
1543	:param data: data
1544	:param index: index array (bool)
1545	: Note: this is different from the residuals in cal_chisqr()
1546	"""
1547	if data == None:
1548	return
1549
1550	# Get data: data I, theory I, and data dI in order
1551	if data.__class__.__name__ == "Data2D":
1552	# build residuals
1553	#print data
1554	residuals = Data2D()
1555	#residuals.copy_from_datainfo(data)
1556	# Not for trunk the line below, instead use the line above
1557	data.clone_without_data(len(data.data), residuals)
1558	residuals.data = None
1559	fn = data.data#[index]
1560	theory_data = self.page_finder[page_id].get_theory_data()
1561	gn = theory_data.data#[index]
1562	en = data.err_data#[index]
1563	residuals.data = (fn - gn) / en
1564	residuals.qx_data = data.qx_data#[index]
1565	residuals.qy_data = data.qy_data #[index]
1566	residuals.q_data = data.q_data#[index]
1567	residuals.err_data = numpy.ones(len(residuals.data))#[index]
1568	residuals.xmin = min(residuals.qx_data)
1569	residuals.xmax = max(residuals.qx_data)
1570	residuals.ymin = min(residuals.qy_data)
1571	residuals.ymax = max(residuals.qy_data)
1572	residuals.q_data = data.q_data#[index]
1573	residuals.mask = data.mask
1574	residuals.scale = 'linear'
1575	#print "print data",residuals
1576	# check the lengths
1577	if len(residuals.data) != len(residuals.q_data):
1578	return
1579
1580	else:
1581	# 1 d theory from model_thread is only in the range of index
1582	if data.dy == None or data.dy == []:
1583	dy = numpy.ones(len(data.y))
1584	else:
1585	## Set consitently w/AbstractFitengine:
1586	## But this should be corrected later.
1587	dy = deepcopy(data.dy)
1588	dy[dy==0] = 1
1589	fn = data.y[index]
1590	theory_data = self.page_finder[page_id].get_theory_data()
1591	gn = theory_data.y
1592	en = dy[index]
1593	# build residuals
1594	residuals = Data1D()
1595	residuals.y = (fn - gn) / en
1596	residuals.x = data.x[index]
1597	residuals.dy = numpy.ones(len(residuals.y))
1598	residuals.dx = None
1599	residuals.dxl = None
1600	residuals.dxw = None
1601	residuals.ytransform = 'y'
1602	# For latter scale changes
1603	residuals.xaxis('\\rm{Q} ', 'A^{-1}')
1604	residuals.yaxis('\\rm{Residuals} ', 'normalized')
1605
1606	new_plot = residuals
1607	if data.id == None:
1608	data.id = data.name
1609	name = data.id
1610	new_plot.name = "Residuals for " + str(data.name)
1611	## allow to highlight data when plotted
1612	new_plot.interactive = True
1613	## when 2 data have the same id override the 1 st plotted
1614	new_plot.id = new_plot.name#name + " residuals"
1615	##group_id specify on which panel to plot this data
1616	new_plot.group_id = new_plot.id
1617	#new_plot.is_data = True
1618	##post data to plot
1619	title = new_plot.name
1620
1621	# plot data
1622	wx.PostEvent(self.parent, NewPlotEvent(plot=new_plot, title=title))
1623
1624	#def profile(fn, args, *kw):
1625	# import cProfile, pstats, os
1626	# global call_result
1627	# def call():
1628	# global call_result
1629	# call_result = fn(args, *kw)
1630	# cProfile.runctx('call()', dict(call=call), {}, 'profile.out')
1631	# stats = pstats.Stats('profile.out')
1632	# #stats.sort_stats('time')
1633	# stats.sort_stats('calls')
1634	# stats.print_stats()
1635	# os.unlink('profile.out')
1636	# return call_result
1637	if __name__ == "__main__":
1638	i = Plugin()
1639
1640
1641
1642

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SasView

source: sasview/sansview/perspectives/fitting/fitting.py @ 0c975ab

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