fitting.py @ 2717081

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 2717081 was 2717081, checked in by Jae Cho <jhjcho@…>, 13 years ago
Callafter(fit_complete)
Property mode set to `100644`
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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_SLICER_PARS_UPDATE
33	from sans.guiframe.gui_style import GUIFRAME_ID
34	from sans.guiframe.plugin_base import PluginBase
35
36	from .console import ConsoleUpdate
37	from .fitproblem import FitProblem
38	from .fitpanel import FitPanel
39	from .fit_thread import FitThread
40	from .pagestate import Reader
41	from .fitpage import Chi2UpdateEvent
42
43	DEFAULT_BEAM = 0.005
44	DEFAULT_QMIN = 0.001
45	DEFAULT_QMAX = 0.13
46	DEFAULT_NPTS = 50
47	MAX_NBR_DATA = 4
48
49
50	(PageInfoEvent, EVT_PAGE_INFO) = wx.lib.newevent.NewEvent()
51
52
53
54	class Plugin(PluginBase):
55	"""
56	Fitting plugin is used to perform fit
57	"""
58	def __init__(self, standalone=False):
59	PluginBase.__init__(self, name="Fitting", standalone=standalone)
60
61	#list of panel to send to guiframe
62	self.mypanels = []
63	# reference to the current running thread
64	self.calc_2D = None
65	self.calc_1D = None
66	self.fit_thread_list = {}
67	self.residuals = None
68	self.fit_panel = None
69	# Start with a good default
70	self.elapsed = 0.022
71	# the type of optimizer selected, park or scipy
72	self.fitter = None
73	self.fit_panel = None
74	#let fit ready
75	self.fitproblem_count = None
76	#Flag to let the plug-in know that it is running stand alone
77	self.standalone = True
78	## dictionary of page closed and id
79	self.closed_page_dict = {}
80	## Fit engine
81	self._fit_engine = 'scipy'
82	## Relative error desired in the sum of squares (float); scipy only
83	self.ftol=1.49012e-08
84	#List of selected data
85	self.selected_data_list = []
86	## list of slicer panel created to display slicer parameters and results
87	self.slicer_panels = []
88	# model 2D view
89	self.model2D_id = None
90	#keep reference of the simultaneous fit page
91	self.sim_page = None
92	self.index_model = 0
93	#Create a reader for fit page's state
94	self.state_reader = None
95	self._extensions = '.fitv'
96	self.scipy_id = wx.NewId()
97	self.park_id = wx.NewId()
98
99	self.temp_state = []
100	self.state_index = 0
101	self.sfile_ext = None
102	# take care of saving data, model and page associated with each other
103	self.page_finder = {}
104	# Log startup
105	logging.info("Fitting plug-in started")
106
107	def populate_menu(self, owner):
108	"""
109	Create a menu for the Fitting plug-in
110
111	:param id: id to create a menu
112	:param owner: owner of menu
113
114	:return: list of information to populate the main menu
115
116	"""
117	#Menu for fitting
118	self.menu1 = wx.Menu()
119	id1 = wx.NewId()
120	simul_help = "Add new fit panel"
121	self.menu1.Append(id1, '&New Fit Page',simul_help)
122	wx.EVT_MENU(owner, id1, self.on_add_new_page)
123	self.menu1.AppendSeparator()
124	id1 = wx.NewId()
125	simul_help = "Simultaneous Fit"
126	self.menu1.Append(id1, '&Simultaneous Fit',simul_help)
127	wx.EVT_MENU(owner, id1, self.on_add_sim_page)
128	self.menu1.AppendSeparator()
129	#Set park engine
130
131	scipy_help= "Scipy Engine: Perform Simple fit. More in Help window...."
132	self.menu1.AppendCheckItem(self.scipy_id, "Simple FitEngine [LeastSq]",scipy_help)
133	wx.EVT_MENU(owner, self.scipy_id, self._onset_engine_scipy)
134
135	park_help = "Park Engine: Perform Complex fit. More in Help window...."
136	self.menu1.AppendCheckItem(self.park_id, "Complex FitEngine [ParkMC]",park_help)
137	wx.EVT_MENU(owner, self.park_id, self._onset_engine_park)
138
139	self.menu1.FindItemById(self.scipy_id).Check(True)
140	self.menu1.FindItemById(self.park_id).Check(False)
141	#create menubar items
142	return [(self.menu1, self.sub_menu)]
143
144	def on_add_sim_page(self, event):
145	"""
146	Create a page to access simultaneous fit option
147	"""
148	if self.sim_page != None:
149	msg= "Simultaneous Fit page already opened"
150	wx.PostEvent(self.parent, StatusEvent(status= msg))
151	return
152
153	self.sim_page= self.fit_panel.add_sim_page()
154
155	def help(self, evt):
156	"""
157	Show a general help dialog.
158	"""
159	from help_panel import HelpWindow
160	frame = HelpWindow(None, -1, 'HelpWindow')
161	frame.Show(True)
162
163	def get_context_menu(self, plotpanel=None):
164	"""
165	Get the context menu items available for P(r).them allow fitting option
166	for Data2D and Data1D only.
167
168	:param graph: the Graph object to which we attach the context menu
169
170	:return: a list of menu items with call-back function
171
172	:note: if Data1D was generated from Theory1D
173	the fitting option is not allowed
174
175	"""
176	graph = plotpanel.graph
177	fit_option = "Select data for fitting"
178	fit_hint = "Dialog with fitting parameters "
179
180	if graph.selected_plottable not in plotpanel.plots:
181	return []
182	item = plotpanel.plots[graph.selected_plottable]
183	if item.__class__.__name__ is "Data2D":
184	if hasattr(item,"is_data"):
185	if item.is_data:
186	return [[fit_option, fit_hint, self._onSelect]]
187	else:
188	return []
189	return [[fit_option, fit_hint, self._onSelect]]
190	else:
191
192	# if is_data is true , this in an actual data loaded
193	#else it is a data created from a theory model
194	if hasattr(item,"is_data"):
195	if item.is_data:
196	return [[fit_option, fit_hint,
197	self._onSelect]]
198	else:
199	return []
200	return []
201
202
203	def get_panels(self, parent):
204	"""
205	Create and return a list of panel objects
206	"""
207	self.parent = parent
208	#self.parent.Bind(EVT_FITSTATE_UPDATE, self.on_set_state_helper)
209	# Creation of the fit panel
210	self.fit_panel = FitPanel(parent=self.parent, manager=self)
211	self.on_add_new_page(event=None)
212	#Set the manager for the main panel
213	self.fit_panel.set_manager(self)
214	# List of windows used for the perspective
215	self.perspective = []
216	self.perspective.append(self.fit_panel.window_name)
217
218	#index number to create random model name
219	self.index_model = 0
220	self.index_theory= 0
221	self.parent.Bind(EVT_SLICER_PANEL, self._on_slicer_event)
222	self.parent.Bind(EVT_SLICER_PARS_UPDATE, self._onEVT_SLICER_PANEL)
223	self.parent._mgr.Bind(wx.aui.EVT_AUI_PANE_CLOSE,self._onclearslicer)
224	#Create reader when fitting panel are created
225	self.state_reader = Reader(self.set_state)
226	#append that reader to list of available reader
227	loader = Loader()
228	loader.associate_file_reader(".fitv", self.state_reader)
229	#loader.associate_file_reader(".svs", self.state_reader)
230	#from sans.perspectives.calculator.sld_panel import SldPanel
231	#Send the fitting panel to guiframe
232	self.mypanels.append(self.fit_panel)
233	#self.mypanels.append(SldPanel(parent=self.parent, base=self.parent))
234	return self.mypanels
235
236	def clear_panel(self):
237	"""
238	"""
239	self.fit_panel.clear_panel()
240
241	def set_default_perspective(self):
242	"""
243	Call back method that True to notify the parent that the current plug-in
244	can be set as default perspective.
245	when returning False, the plug-in is not candidate for an automatic
246	default perspective setting
247	"""
248	return True
249
250	def delete_data(self, data):
251	"""
252	delete the given data from panel
253	"""
254	self.fit_panel.delete_data(data)
255
256	def set_data(self, data_list=None):
257	"""
258	receive a list of data to fit
259	"""
260	if data_list is None:
261	data_list = []
262	selected_data_list = []
263	if len(data_list) > MAX_NBR_DATA :
264	from fitting_widgets import DataDialog
265	dlg = DataDialog(data_list=data_list, nb_data=MAX_NBR_DATA)
266	if dlg.ShowModal() == wx.ID_OK:
267	selected_data_list = dlg.get_data()
268	dlg.Destroy()
269
270	else:
271	selected_data_list = data_list
272	try:
273	for data in selected_data_list:
274	page = self.add_fit_page(data=data)
275	wx.PostEvent(self.parent, NewPlotEvent(plot=data,
276	title=str(data.title)))
277	except:
278	msg = "Fitting Set_data: " + str(sys.exc_value)
279	wx.PostEvent(self.parent, StatusEvent(status=msg, info="error"))
280
281	def set_top_panel(self):
282	"""
283	Close default (welcome) panel
284	"""
285	if 'default' in self.parent.panels:
286	self.parent.on_close_welcome_panel()
287
288
289	def set_theory(self, theory_list=None):
290	"""
291	"""
292	#set the model state for a given theory_state:
293	for item in theory_list:
294	try:
295	_, theory_state = item
296	self.fit_panel.set_model_state(theory_state)
297	except:
298	msg = "Fitting: cannot deal with the theory received"
299	logging.error("set_theory " + msg + "\n" + str(sys.exc_value))
300	wx.PostEvent(self.parent, StatusEvent(status=msg, info="error"))
301
302	def set_state(self, state=None, datainfo=None, format=None):
303	"""
304	Call-back method for the fit page state reader.
305	This method is called when a .fitv/.svs file is loaded.
306
307	: param state: PageState object
308	: param datainfo: data
309	"""
310	#state = self.state_reader.get_state()
311	if state != None:
312	state = state.clone()
313	# store fitting state in temp_state
314	self.temp_state.append(state)
315	else:
316	self.temp_state = []
317	# index to start with for a new set_state
318	self.state_index = 0
319	# state file format
320	self.sfile_ext = format
321
322	self.on_set_state_helper(event=None)
323
324	def on_set_state_helper(self,event=None):
325	"""
326	Set_state_helper. This actually sets state after plotting data from state file.
327
328	: event: FitStateUpdateEvent called by dataloader.plot_data from guiframe
329	"""
330	if len(self.temp_state) == 0:
331	if self.state_index==0 and len(self.mypanels) <= 0 and self.sfile_ext =='.svs':
332	self.fit_panel.add_default_pages()
333	self.temp_state = []
334	self.state_index = 0
335	return
336
337	try:
338	# Load fitting state
339	state = self.temp_state[self.state_index]
340	#panel state should have model selection to set_state
341	if state.formfactorcombobox != None:
342	#set state
343	data = self.parent.create_gui_data(state.data)
344	data.group_id = state.data.group_id
345	self.parent.add_data(data_list={data.id:data})
346	wx.PostEvent(self.parent, NewPlotEvent(plot=data,
347	title=data.title))
348	#need to be fix later make sure we are sendind guiframe.data
349	#to panel
350	state.data = data
351	page = self.fit_panel.set_state(state)
352	else:
353	#just set data because set_state won't work
354	data = self.parent.create_gui_data(state.data)
355	data.group_id = state.data.group_id
356	self.parent.add_data(data_list={data.id:data})
357	wx.PostEvent(self.parent, NewPlotEvent(plot=data,
358	title=data.title))
359	page = self.add_fit_page(data)
360	caption = page.window_name
361	self.store_data(page=page.uid, data=data, caption=caption)
362	self.mypanels.append(page)
363
364	# get ready for the next set_state
365	self.state_index += 1
366
367	#reset state variables to default when all set_state is finished.
368	if len(self.temp_state) == self.state_index:
369
370	self.temp_state = []
371	#self.state_index = 0
372	# Make sure the user sees the fitting panel after loading
373	#self.parent.set_perspective(self.perspective)
374	self.on_perspective(event=None)
375	except:
376	self.state_index==0
377	self.temp_state = []
378	raise
379
380	def save_fit_state(self, filepath, fitstate):
381	"""
382	save fit page state into file
383	"""
384	self.state_reader.write(filename=filepath, fitstate=fitstate)
385
386	def set_fit_range(self, uid, qmin, qmax):
387	"""
388	Set the fitting range of a given page
389	"""
390	self.page_finder[uid].set_range(qmin=qmin, qmax=qmax)
391
392	def schedule_for_fit(self,value=0, uid=None,fitproblem =None):
393	"""
394	Set the fit problem field to 0 or 1 to schedule that problem to fit.
395	Schedule the specified fitproblem or get the fit problem related to
396	the current page and set value.
397
398	:param value: integer 0 or 1
399	:param fitproblem: fitproblem to schedule or not to fit
400
401	"""
402	if fitproblem !=None:
403	fitproblem.schedule_tofit(value)
404	else:
405	self.page_finder[uid].schedule_tofit(value)
406
407	def get_page_finder(self):
408	"""
409	return self.page_finder used also by simfitpage.py
410	"""
411	return self.page_finder
412
413	def set_page_finder(self,modelname,names,values):
414	"""
415	Used by simfitpage.py to reset a parameter given the string constrainst.
416
417	:param modelname: the name ot the model for with the parameter has to reset
418	:param value: can be a string in this case.
419	:param names: the paramter name
420
421	:note: expecting park used for fit.
422
423	"""
424	sim_page_id = self.sim_page.uid
425	for uid, value in self.page_finder.iteritems():
426	if uid != sim_page_id:
427	list = value.get_model()
428	model = list[0]
429	if model.name == modelname:
430	value.set_model_param(names, values)
431	break
432
433	def split_string(self,item):
434	"""
435	receive a word containing dot and split it. used to split parameterset
436	name into model name and parameter name example: ::
437
438	paramaterset (item) = M1.A
439	Will return model_name = M1 , parameter name = A
440
441	"""
442	if string.find(item,".")!=-1:
443	param_names= re.split("\.",item)
444	model_name=param_names[0]
445	##Assume max len is 3; eg., M0.radius.width
446	if len(param_names) == 3:
447	param_name=param_names[1]+"."+param_names[2]
448	else:
449	param_name=param_names[1]
450	return model_name,param_name
451
452	def set_ftol(self, ftol=None):
453	"""
454	Set ftol: Relative error desired in the sum of chi squares.
455	"""
456	# check if it is flaot
457	try:
458	f_tol = float(ftol)
459	except:
460	# default
461	f_tol = 1.49012e-08
462
463	self.ftol = f_tol
464
465	def stop_fit(self, uid):
466	"""
467	Stop the fit engine
468	"""
469	if uid in self.fit_thread_list.keys():
470	calc_fit = self.fit_thread_list[uid]
471	if calc_fit is not None and calc_fit.isrunning():
472	calc_fit.stop()
473	msg = "Fit stop!"
474	wx.PostEvent(self.parent, StatusEvent(status=msg, type="stop"))
475	#set the fit button label of page when fit stop is trigger from
476	#simultaneous fit pane
477	if self.sim_page is not None and uid == self.sim_page.uid:
478	for uid, value in self.page_finder.iteritems():
479	if value.get_scheduled() == 1:
480	if uid in self.fit_panel.opened_pages.keys():
481	panel = self.fit_panel.opened_pages[uid]
482	panel. _on_fit_complete()
483
484	def set_smearer(self, uid, smearer, qmin=None, qmax=None, draw=True,
485	enable2D=False):
486	"""
487	Get a smear object and store it to a fit problem
488
489	:param smearer: smear object to allow smearing data
490
491	"""
492	if uid not in self.page_finder.keys():
493	msg = "Cannot find ID: %s in page_finder" % str(uid)
494	raise ValueError, msg
495	self.page_finder[uid].set_smearer(smearer)
496	self.page_finder[uid].set_enable2D(enable2D)
497	if draw:
498	## draw model 1D with smeared data
499	data = self.page_finder[uid].get_fit_data()
500	model = self.page_finder[uid].get_model()
501	if model is None:
502	return
503	enable1D = True
504	enable2D = self.page_finder[uid].get_enable2D()
505	if enable2D:
506	enable1D = False
507
508	## if user has already selected a model to plot
509	## redraw the model with data smeared
510	smear = self.page_finder[uid].get_smearer()
511	self.draw_model(model=model, data=data, page_id=uid, smearer=smear,
512	enable1D=enable1D, enable2D=enable2D,
513	qmin=qmin, qmax=qmax)
514	time.sleep(0.2)
515
516	def draw_model(self, model, page_id, data=None, smearer=None,
517	enable1D=True, enable2D=False,
518	state=None,
519	toggle_mode_on=False,
520	qmin=DEFAULT_QMIN, qmax=DEFAULT_QMAX,
521	qstep=DEFAULT_NPTS,
522	update_chisqr=True):
523	"""
524	Draw model.
525
526	:param model: the model to draw
527	:param name: the name of the model to draw
528	:param data: the data on which the model is based to be drawn
529	:param description: model's description
530	:param enable1D: if true enable drawing model 1D
531	:param enable2D: if true enable drawing model 2D
532	:param qmin: Range's minimum value to draw model
533	:param qmax: Range's maximum value to draw model
534	:param qstep: number of step to divide the x and y-axis
535	:param update_chisqr: update chisqr [bool]
536
537	"""
538	if data.__class__.__name__ == "Data1D" or not enable2D:
539	## draw model 1D with no loaded data
540	self._draw_model1D(model=model,
541	data=data,
542	page_id=page_id,
543	enable1D=enable1D,
544	smearer=smearer,
545	qmin=qmin,
546	qmax=qmax,
547	toggle_mode_on=toggle_mode_on,
548	state=state,
549	qstep=qstep,
550	update_chisqr=update_chisqr)
551	else:
552	## draw model 2D with no initial data
553	self._draw_model2D(model=model,
554	page_id=page_id,
555	data=data,
556	enable2D=enable2D,
557	smearer=smearer,
558	qmin=qmin,
559	qmax=qmax,
560	state=state,
561	toggle_mode_on=toggle_mode_on,
562	qstep=qstep,
563	update_chisqr=update_chisqr)
564
565	def onFit(self):
566	"""
567	perform fit
568	"""
569	## count the number of fitproblem schedule to fit
570	fitproblem_count = 0
571	for value in self.page_finder.values():
572	if value.get_scheduled() == 1:
573	fitproblem_count += 1
574
575	## if simultaneous fit change automatically the engine to park
576	if fitproblem_count > 1:
577	self._on_change_engine(engine='park')
578
579	self.fitproblem_count = fitproblem_count
580
581	from sans.fit.Fitting import Fit
582	fitter = Fit(self._fit_engine)
583
584	if self._fit_engine == "park":
585	engineType = "Simultaneous Fit"
586	else:
587	engineType = "Single Fit"
588
589	fproblemId = 0
590	self.current_pg = None
591	list_page_id = []
592	for page_id, value in self.page_finder.iteritems():
593	try:
594	if value.get_scheduled() == 1:
595	#Get list of parameters name to fit
596	pars = []
597	templist = []
598
599	page = self.fit_panel.get_page_by_id(page_id)
600	templist = page.get_param_list()
601	# missing fit parameters
602	#if not templist:
603	# return
604	# have the list
605	for element in templist:
606	name = str(element[1])
607	pars.append(name)
608	#Set Engine (model , data) related to the page on
609	self._fit_helper(value=value, pars=pars,
610	fitter=fitter,
611	fitproblem_id=fproblemId,
612	title=engineType)
613	list_page_id.append(page_id)
614	fproblemId += 1
615	current_page_id = page_id
616	except:
617	#raise
618	msg= "%s error: %s" % (engineType, sys.exc_value)
619	wx.PostEvent(self.parent, StatusEvent(status=msg, info="error",
620	type="stop"))
621	return
622	## If a thread is already started, stop it
623	#if self.calc_fit!= None and self.calc_fit.isrunning():
624	# self.calc_fit.stop()
625	msg = "Fitting is in progress..."
626	wx.PostEvent( self.parent, StatusEvent(status=msg, type="progress" ))
627
628	#Handler used for park engine displayed message
629	handler = ConsoleUpdate(parent=self.parent,
630	manager=self,
631	improvement_delta=0.1)
632	time.sleep(0.2)
633	## perform single fit
634	if fitproblem_count == 1:
635	calc_fit = FitThread(handler = handler,
636	fn=fitter,
637	pars=pars,
638	page_id=list_page_id,
639	completefn=self._single_fit_completed,
640	ftol=self.ftol)
641	else:
642	current_page_id = self.sim_page.uid
643	## Perform more than 1 fit at the time
644	calc_fit = FitThread(handler=handler,
645	fn=fitter,
646	page_id=list_page_id,
647	updatefn=handler.update_fit,
648	completefn=self._simul_fit_completed,
649	ftol=self.ftol)
650	self.fit_thread_list[current_page_id] = calc_fit
651	time.sleep(0.3)
652
653	self.ready_fit(calc_fit=calc_fit)
654	calc_fit.queue()
655
656	def ready_fit(self, calc_fit):
657	"""
658	Ready for another fit
659	"""
660	if self.fitproblem_count != None and self.fitproblem_count > 1:
661	calc_fit.ready(2.5)
662
663	else:
664	time.sleep(0.4)
665
666	def remove_plot(self, uid, theory=False):
667	"""
668	remove model plot when a fit page is closed
669	"""
670	fitproblem = self.page_finder[uid]
671	data = fitproblem.get_fit_data()
672	model = fitproblem.get_model()
673	plot_id = None
674	if model is not None:
675	plot_id = data.id + name
676	if theory:
677	plot_id = data.id
678	group_id = data.group_id
679	wx.PostEvent(self.parent, NewPlotEvent(id=plot_id,
680	group_id=group_id,
681	action='remove'))
682
683	def store_data(self, uid, data=None, caption=None):
684	"""
685	Helper to save page reference into the plug-in
686
687	:param page: page to store
688
689	"""
690	#create a fitproblem storing all link to data,model,page creation
691	if not uid in self.page_finder.keys():
692	self.page_finder[uid] = FitProblem()
693	self.page_finder[uid].set_fit_data(data)
694	self.page_finder[uid].set_fit_tab_caption(caption)
695
696	def on_add_new_page(self, event=None):
697	"""
698	ask fit panel to create a new empty page
699	"""
700	try:
701	page = self.fit_panel.add_empty_page()
702	page_caption = page.window_name
703	# add data associated to the page created
704	if page != None:
705	self.store_data(uid=page.uid, caption=page_caption,
706	data=page.get_data())
707	wx.PostEvent(self.parent, StatusEvent(status="Page Created",
708	info="info"))
709	else:
710	msg = "Page was already Created"
711	wx.PostEvent(self.parent, StatusEvent(status=msg,
712	info="warning"))
713	self.set_top_panel()
714	except:
715	raise
716	#msg = "Creating Fit page: %s"%sys.exc_value
717	#wx.PostEvent(self.parent, StatusEvent(status=msg, info="error"))
718
719
720	def add_fit_page(self, data):
721	"""
722	given a data, ask to the fitting panel to create a new fitting page,
723	get this page and store it into the page_finder of this plug-in
724	"""
725	page = self.fit_panel.set_data(data)
726	page_caption = page.window_name
727	#append Data1D to the panel containing its theory
728	#if theory already plotted
729	if page.uid in self.page_finder:
730	theory_data = self.page_finder[page.uid].get_theory_data()
731	if issubclass(data.__class__, Data2D):
732	data.group_id = wx.NewId()
733	if theory_data is not None:
734	group_id = str(page.uid) + " Model1D"
735	wx.PostEvent(self.parent,
736	NewPlotEvent(group_id=group_id,
737	action="delete"))
738	self.parent.update_data(prev_data=theory_data, new_data=data)
739	else:
740	if theory_data is not None:
741	group_id = str(page.uid) + " Model2D"
742	data.group_id = theory_data.group_id
743	wx.PostEvent(self.parent,
744	NewPlotEvent(group_id=group_id,
745	action="delete"))
746	self.parent.update_data(prev_data=theory_data, new_data=data)
747
748	self.store_data(uid=page.uid, data=data, caption=page.window_name)
749	if self.sim_page is not None:
750	self.sim_page.draw_page()
751	return page
752
753	def _onEVT_SLICER_PANEL(self, event):
754	"""
755	receive and event telling to update a panel with a name starting with
756	event.panel_name. this method update slicer panel for a given interactor.
757
758	:param event: contains type of slicer , paramaters for updating the panel
759	and panel_name to find the slicer 's panel concerned.
760	"""
761	for item in self.parent.panels:
762	if self.parent.panels[item].window_caption.startswith(event.panel_name):
763	self.parent.panels[item].set_slicer(event.type, event.params)
764
765	self.parent._mgr.Update()
766
767	def _closed_fitpage(self, event):
768	"""
769	request fitpanel to close a given page when its unique data is removed
770	from the plot. close fitpage only when the a loaded data is removed
771	"""
772	if event is None or event.data is None:
773	return
774	if hasattr(event.data,"is_data"):
775	if not event.data.is_data or \
776	event.data.__class__.__name__ == "Data1D":
777	self.fit_panel.close_page_with_data(event.data)
778
779	def _add_page_onmenu(self, name, fitproblem=None):
780	"""
781	Add name of a closed page of fitpanel in a menu
782	"""
783	list = self.menu1.GetMenuItems()
784	for item in list:
785	if name == item.GetItemLabel():
786	self.closed_page_dict[name][1] = fitproblem
787
788	if not name in self.closed_page_dict.keys():
789	# Post paramters
790	event_id = wx.NewId()
791	self.menu1.Append(event_id, name, "Show %s fit panel" % name)
792	self.closed_page_dict[name]= [event_id, fitproblem]
793	wx.EVT_MENU(self.parent, event_id, self._open_closed_page)
794
795	def _open_closed_page(self, event):
796	"""
797	reopen a closed page
798	"""
799	for name, value in self.closed_page_dict.iteritems():
800	if event.GetId() in value:
801	uid,fitproblem = value
802	if name !="Model":
803	data= fitproblem.get_fit_data()
804	page = self.fit_panel.add_fit_page(data=data, reset=True)
805	if fitproblem != None:
806	self.page_finder[uid] = fitproblem
807	if self.sim_page != None:
808	self.sim_page.draw_page()
809
810	else:
811	model = fitproblem
812	self.fit_panel.add_model_page(model=model, topmenu=True,
813	reset= True)
814	break
815
816	def _reset_schedule_problem(self, value=0):
817	"""
818	unschedule or schedule all fitproblem to be fit
819	"""
820	for page_id in self.page_finder.keys():
821	self.page_finder[page_id].schedule_tofit(value)
822
823	def _fit_helper(self, pars, value, fitproblem_id,fitter, title="Single Fit " ):
824	"""
825	helper for fitting
826	"""
827	metadata = value.get_fit_data()
828	model = value.get_model()
829	smearer = value.get_smearer()
830	qmin, qmax = value.get_range()
831	self.fit_id = fitproblem_id
832	#Create list of parameters for fitting used
833	templist = []
834
835	try:
836	#Extra list of parameters and their constraints
837	listOfConstraint = []
838
839	param = value.get_model_param()
840	if len(param) > 0:
841	for item in param:
842	## check if constraint
843	if item[0] != None and item[1] != None:
844	listOfConstraint.append((item[0],item[1]))
845
846	#Do the single fit
847	fitter.set_model(model, self.fit_id,
848	pars, constraints=listOfConstraint)
849
850	fitter.set_data(data=metadata, id=self.fit_id,
851	smearer=smearer, qmin=qmin, qmax=qmax)
852
853	fitter.select_problem_for_fit(id=self.fit_id,
854	value=value.get_scheduled())
855	value.clear_model_param()
856	except:
857	raise
858	#msg = title + " error: %s" % sys.exc_value
859	#wx.PostEvent(self.parent, StatusEvent(status=msg, type="stop"))
860
861	def _onSelect(self,event):
862	"""
863	when Select data to fit a new page is created .Its reference is
864	added to self.page_finder
865	"""
866	self.panel = event.GetEventObject()
867	Plugin.on_perspective(self, event=event)
868	for plottable in self.panel.graph.plottables:
869	if plottable.__class__.__name__ in ["Data1D", "Theory1D"]:
870	data_id = self.panel.graph.selected_plottable
871	if plottable == self.panel.plots[data_id]:
872	data = plottable
873	self.add_fit_page(data=data)
874	return
875	else:
876	data = plottable
877	self.add_fit_page(data=data)
878	self.set_top_panel()
879
880	def update_fit(self, result=None, msg=""):
881	"""
882	"""
883	print "update_fit result", result
884
885	def _single_fit_completed(self, result, pars, page_id, elapsed=None):
886	"""
887	Display fit result on one page of the notebook.
888
889	:param result: result of fit
890	:param pars: list of names of parameters fitted
891	:param current_pg: the page where information will be displayed
892	:param qmin: the minimum value of x to replot the model
893	:param qmax: the maximum value of x to replot model
894
895	"""
896	time.sleep(0.2)
897	try:
898	if result == None:
899	self._update_fit_button(page_id)
900	msg= "Single Fitting did not converge!!!"
901	wx.PostEvent(self.parent,
902	StatusEvent(status=msg,
903	info="warning",
904	type="stop"))
905	return
906	if not numpy.isfinite(result.fitness) or \
907	numpy.any(result.pvec == None) or \
908	not numpy.all(numpy.isfinite(result.pvec)):
909	msg = "Single Fitting did not converge!!!"
910	wx.PostEvent(self.parent,
911	StatusEvent(status=msg,
912	info="warning",
913	type="stop"))
914	self._update_fit_button(page_id)
915	return
916	for uid in page_id:
917	value = self.page_finder[uid]
918	model = value.get_model()
919	page_id = uid
920
921	param_name = []
922	for name in pars:
923	param_name.append(name)
924
925	cpage = self.fit_panel.get_page_by_id(uid)
926	cpage.onsetValues(result.fitness,
927	param_name, result.pvec,result.stderr)
928	wx.CallAfter(cpage._on_fit_complete)
929	if result.stderr == None:
930	msg = "Fit Abort: "
931	else:
932	msg = "Fitting: "
933	msg += "Completed!!!"
934	wx.PostEvent(self.parent, StatusEvent(status=msg))
935	except ValueError:
936	self._update_fit_button(page_id)
937	msg = "Single Fitting did not converge!!!"
938	wx.PostEvent(self.parent, StatusEvent(status=msg, info="error",
939	type="stop"))
940	return
941	except:
942	self._update_fit_button(page_id)
943	msg = "Single Fit completed but Following"
944	msg += " error occurred:%s" % sys.exc_value
945	wx.PostEvent(self.parent, StatusEvent(status=msg, info="error",
946	type="stop"))
947	raise
948	return
949
950	def _simul_fit_completed(self, result, page_id,pars=None, elapsed=None):
951	"""
952	Parameter estimation completed,
953	display the results to the user
954
955	:param alpha: estimated best alpha
956	:param elapsed: computation time
957
958	"""
959	if page_id is None:
960	page_id = []
961	## fit more than 1 model at the same time
962	time.sleep(0.2)
963	try:
964	msg = ""
965	if result == None:
966	self._update_fit_button(page_id)
967	msg= "Complex Fitting did not converge!!!"
968	wx.PostEvent(self.parent, StatusEvent(status=msg,
969	type="stop"))
970	return
971	if not numpy.isfinite(result.fitness) or \
972	numpy.any(result.pvec == None) or not \
973	numpy.all(numpy.isfinite(result.pvec)):
974	self._update_fit_button(page_id)
975	msg= "Simultaneous Fitting did not converge!!!"
976	wx.PostEvent(self.parent, StatusEvent(status=msg,type="stop"))
977	return
978
979	for uid in page_id:
980	value = self.page_finder[uid]
981	model = value.get_model()
982	data = value.get_fit_data()
983	small_param_name = []
984	small_out = []
985	small_cov = []
986	#Separate result in to data corresponding to each page
987	for p in result.parameters:
988	model_name, param_name = self.split_string(p.name)
989	if model.name == model_name:
990	p_name= model.name+"."+param_name
991	if p.name == p_name:
992	if p.value != None and numpy.isfinite(p.value):
993	small_out.append(p.value)
994	small_param_name.append(param_name)
995	small_cov.append(p.stderr)
996	# Display result on each page
997	cpage = self.fit_panel.get_page_by_id(uid)
998	cpage.onsetValues(result.fitness,
999	small_param_name,
1000	small_out,small_cov)
1001	wx.CallAfter(cpage._on_fit_complete)
1002	msg = "Fit completed!"
1003	wx.PostEvent(self.parent, StatusEvent(status=msg))
1004	except Exception:
1005	self._update_fit_button(page_id)
1006	msg = "Complex Fitting did not converge!!!"
1007	wx.PostEvent(self.parent, StatusEvent(status=msg, info="error",
1008	type="stop"))
1009	return
1010
1011	except:
1012	self._update_fit_button(page_id)
1013	msg = "Simultaneous Fit completed"
1014	msg += " but Following error occurred:%s" % sys.exc_value
1015	wx.PostEvent(self.parent, StatusEvent(status=msg, type="stop"))
1016
1017	def _update_fit_button(self, page_id):
1018	"""
1019	Update Fit button when fit stopped
1020
1021	: parameter page_id: fitpage where the button is
1022	"""
1023	if page_id.__class__.__name__ != 'list':
1024	page_id = [page_id]
1025	for uid in page_id:
1026	page = self.fit_panel.get_page_by_id(uid)
1027	page._on_fit_complete()
1028
1029	def _on_show_panel(self, event):
1030	"""
1031	"""
1032	pass
1033
1034	def _onset_engine_park(self,event):
1035	"""
1036	set engine to park
1037	"""
1038	self._on_change_engine('park')
1039
1040	def _onset_engine_scipy(self,event):
1041	"""
1042	set engine to scipy
1043	"""
1044	self._on_change_engine('scipy')
1045
1046	def _on_slicer_event(self, event):
1047	"""
1048	Receive a panel as event and send it to guiframe
1049
1050	:param event: event containing a panel
1051
1052	"""
1053	if event.panel is not None:
1054	new_panel = event.panel
1055	self.slicer_panels.append(event.panel)
1056	# Set group ID if available
1057	event_id = self.parent.popup_panel(new_panel)
1058	#self.menu3.Append(event_id, new_panel.window_caption,
1059	# "Show %s plot panel" % new_panel.window_caption)
1060	# Set id to allow us to reference the panel later
1061
1062	new_panel.uid = event_id
1063	self.mypanels.append(new_panel)
1064
1065	def _onclearslicer(self, event):
1066	"""
1067	Clear the boxslicer when close the panel associate with this slicer
1068	"""
1069	name =event.GetPane().caption
1070
1071	for panel in self.slicer_panels:
1072	if panel.window_caption==name:
1073
1074	for item in self.parent.panels:
1075	if hasattr(self.parent.panels[item],"uid"):
1076	if self.parent.panels[item].uid ==panel.base.uid:
1077	self.parent.panels[item].onClearSlicer(event)
1078	self.parent._mgr.Update()
1079	break
1080	break
1081
1082	def _return_engine_type(self):
1083	"""
1084	return the current type of engine
1085	"""
1086	return self._fit_engine
1087
1088
1089	def _on_change_engine(self, engine='park'):
1090	"""
1091	Allow to select the type of engine to perform fit
1092
1093	:param engine: the key work of the engine
1094
1095	"""
1096	## saving fit engine name
1097	self._fit_engine = engine
1098	## change menu item state
1099	if engine=="park":
1100	self.menu1.FindItemById(self.park_id).Check(True)
1101	self.menu1.FindItemById(self.scipy_id).Check(False)
1102	else:
1103	self.menu1.FindItemById(self.park_id).Check(False)
1104	self.menu1.FindItemById(self.scipy_id).Check(True)
1105	## post a message to status bar
1106	msg = "Engine set to: %s" % self._fit_engine
1107	wx.PostEvent(self.parent,
1108	StatusEvent(status=msg))
1109	## send the current engine type to fitpanel
1110	self.fit_panel._on_engine_change(name=self._fit_engine)
1111
1112	def _on_model_panel(self, evt):
1113	"""
1114	react to model selection on any combo box or model menu.plot the model
1115
1116	:param evt: wx.combobox event
1117
1118	"""
1119	model = evt.model
1120	uid = evt.uid
1121	qmin = evt.qmin
1122	qmax = evt.qmax
1123	smearer = evt.smearer
1124
1125	if model == None:
1126	return
1127
1128	if self.page_finder[uid].get_model() is None:
1129	model.name = "M" + str(self.index_model)
1130	self.index_model += 1
1131	else:
1132	model.name = self.page_finder[uid].get_model().name
1133	# save the name containing the data name with the appropriate model
1134	self.page_finder[uid].set_model(model)
1135	self.page_finder[uid].set_range(qmin=qmin, qmax=qmax)
1136	if self.sim_page is not None:
1137	self.sim_page.draw_page()
1138
1139	def _update1D(self,x, output):
1140	"""
1141	Update the output of plotting model 1D
1142	"""
1143	msg = "Plot updating ... "
1144	wx.PostEvent(self.parent, StatusEvent(status=msg,type="update"))
1145	#self.ready_fit()
1146
1147
1148	def _fill_default_model2D(self, theory, page_id, qmax,qstep, qmin=None):
1149	"""
1150	fill Data2D with default value
1151
1152	:param theory: Data2D to fill
1153
1154	"""
1155	from DataLoader.data_info import Detector, Source
1156
1157	detector = Detector()
1158	theory.detector.append(detector)
1159	theory.source= Source()
1160
1161	## Default values
1162	theory.detector[0].distance= 8000 # mm
1163	theory.source.wavelength= 6 # A
1164	theory.detector[0].pixel_size.x= 5 # mm
1165	theory.detector[0].pixel_size.y= 5 # mm
1166
1167	theory.detector[0].beam_center.x= qmax
1168	theory.detector[0].beam_center.y= qmax
1169
1170	## create x_bins and y_bins of the model 2D
1171	pixel_width_x = theory.detector[0].pixel_size.x
1172	pixel_width_y = theory.detector[0].pixel_size.y
1173	center_x = theory.detector[0].beam_center.x/pixel_width_x
1174	center_y = theory.detector[0].beam_center.y/pixel_width_y
1175
1176	# theory default: assume the beam
1177	#center is located at the center of sqr detector
1178	xmax = qmax
1179	xmin = -qmax
1180	ymax = qmax
1181	ymin = -qmax
1182
1183	x= numpy.linspace(start= -1*qmax,
1184	stop=qmax,
1185	num=qstep,
1186	endpoint=True)
1187	y = numpy.linspace(start=-1*qmax,
1188	stop= qmax,
1189	num= qstep,
1190	endpoint=True)
1191
1192	## use data info instead
1193	new_x = numpy.tile(x, (len(y),1))
1194	new_y = numpy.tile(y, (len(x),1))
1195	new_y = new_y.swapaxes(0,1)
1196
1197	# all data reuire now in 1d array
1198	qx_data = new_x.flatten()
1199	qy_data = new_y.flatten()
1200
1201	q_data = numpy.sqrt(qx_dataqx_data+qy_dataqy_data)
1202	# set all True (standing for unmasked) as default
1203	mask = numpy.ones(len(qx_data), dtype = bool)
1204
1205	# calculate the range of qx and qy: this way,
1206	# it is a little more independent
1207	x_size = xmax- xmin
1208	y_size = ymax -ymin
1209
1210	# store x and y bin centers in q space
1211	x_bins = x
1212	y_bins = y
1213	# bin size: x- & y-directions
1214	xstep = x_size/len(x_bins-1)
1215	ystep = y_size/len(y_bins-1)
1216
1217	#theory.data = numpy.zeros(len(mask))
1218	theory.err_data = numpy.ones(len(mask))
1219	theory.qx_data = qx_data
1220	theory.qy_data = qy_data
1221	theory.q_data = q_data
1222	theory.mask = mask
1223	theory.x_bins = x_bins
1224	theory.y_bins = y_bins
1225
1226	# max and min taking account of the bin sizes
1227	theory.xmin = xmin
1228	theory.xmax = xmax
1229	theory.ymin = ymin
1230	theory.ymax = ymax
1231	theory.group_id = str(page_id) + " Model2D"
1232	theory.id = str(page_id) + " Model2D"
1233
1234	def _complete1D(self, x,y, page_id, elapsed,index,model,
1235	toggle_mode_on=False,state=None,
1236	data=None, update_chisqr=True):
1237	"""
1238	Complete plotting 1D data
1239	"""
1240	try:
1241	new_plot = Data1D(x=x, y=y)
1242	new_plot.is_data = False
1243	new_plot.symbol = GUIFRAME_ID.CURVE_SYMBOL_NUM
1244	if data != None:
1245	_xaxis, _xunit = data.get_xaxis()
1246	_yaxis, _yunit = data.get_yaxis()
1247	new_plot.title = data.name
1248	#if the theory is already plotted use the same group id
1249	#to replot
1250	if page_id in self.page_finder:
1251	theory_data = self.page_finder[page_id].get_theory_data()
1252	if theory_data is not None:
1253	data.group_id = theory_data.group_id
1254	#data is plotted before the theory, then take its group_id
1255	#assign to the new theory
1256	new_plot.group_id = data.group_id
1257
1258	else:
1259	_xaxis, _xunit = "\\rm{Q}", 'A^{-1}'
1260	_yaxis, _yunit = "\\rm{Intensity} ", "cm^{-1}"
1261	new_plot.title = "Analytical model 1D "
1262	#find a group id to plot theory without data
1263	new_plot.group_id = str(page_id) + " Model1D"
1264	new_plot.id = str(page_id) + " Model1D"
1265
1266	#find if this theory was already plotted and replace that plot given
1267	#the same id
1268
1269	theory_data = self.page_finder[page_id].get_theory_data()
1270	if theory_data is not None:
1271	new_plot.id = theory_data.id
1272
1273	new_plot.name = model.name + " ["+ str(model.__class__.__name__)+ "]"
1274	new_plot.xaxis(_xaxis, _xunit)
1275	new_plot.yaxis(_yaxis, _yunit)
1276	if toggle_mode_on:
1277	new_plot.id = str(page_id) + " Model"
1278	wx.PostEvent(self.parent,
1279	NewPlotEvent(group_id=str(page_id) + " Model2D",
1280	action="Hide"))
1281
1282	self.page_finder[page_id].set_theory_data(new_plot)
1283	if data is None:
1284	data_id = None
1285	else:
1286	data_id = data.id
1287	self.parent.update_theory(data_id=data_id,
1288	theory=new_plot,
1289	state=state)
1290	current_pg = self.fit_panel.get_page_by_id(page_id)
1291	title = new_plot.title
1292	wx.PostEvent(self.parent, NewPlotEvent(plot=new_plot,
1293	title= str(title)))
1294
1295	self.page_finder[page_id].set_theory_data(new_plot)
1296
1297	if update_chisqr:
1298	wx.PostEvent(current_pg,
1299	Chi2UpdateEvent(output=self._cal_chisqr(data=data,
1300	page_id=page_id,
1301	index=index)))
1302	else:
1303	self._plot_residuals(page_id, data, index)
1304
1305	msg = "Computation completed!"
1306	wx.PostEvent( self.parent, StatusEvent(status=msg, type="stop" ))
1307	#self.current_pg.state.theory_data = deepcopy(self.theory_data)
1308	except:
1309	raise
1310	#msg = " Error occurred when drawing %s Model 1D: " % new_plot.name
1311	#msg += " %s" % sys.exc_value
1312	#wx.PostEvent(self.parent, StatusEvent(status=msg, type="stop"))
1313
1314	def _update2D(self, output,time=None):
1315	"""
1316	Update the output of plotting model
1317	"""
1318	wx.PostEvent(self.parent, StatusEvent(status="Plot \
1319	#updating ... ", type="update"))
1320	#self.ready_fit()
1321
1322	def _complete2D(self, image, data, model, page_id, elapsed, index, qmin,
1323	qmax, toggle_mode_on=False,state=None,qstep=DEFAULT_NPTS,
1324	update_chisqr=True):
1325	"""
1326	Complete get the result of modelthread and create model 2D
1327	that can be plot.
1328	"""
1329	err_image = numpy.zeros(numpy.shape(image))
1330
1331	new_plot= Data2D(image=image, err_image=err_image)
1332	new_plot.name = model.name
1333	new_plot.title = "Analytical model 2D "
1334	if data is None:
1335	self._fill_default_model2D(theory=new_plot,
1336	qmax=qmax,
1337	page_id=page_id,
1338	qstep=qstep,
1339	qmin= qmin)
1340
1341	else:
1342	new_plot.id = str(page_id) + " Model2D"
1343	new_plot.group_id = str(page_id) + " Model2D"
1344	new_plot.x_bins = data.x_bins
1345	new_plot.y_bins = data.y_bins
1346	new_plot.detector = data.detector
1347	new_plot.source = data.source
1348	new_plot.is_data = False
1349	new_plot.qx_data = data.qx_data
1350	new_plot.qy_data = data.qy_data
1351	new_plot.q_data = data.q_data
1352	#numpy.zeros(len(data.err_data))#data.err_data
1353	new_plot.err_data = err_image
1354	new_plot.mask = data.mask
1355	## plot boundaries
1356	new_plot.ymin = data.ymin
1357	new_plot.ymax = data.ymax
1358	new_plot.xmin = data.xmin
1359	new_plot.xmax = data.xmax
1360	title = data.title
1361	if len(title) > 1:
1362	new_plot.title = "Model2D for " + data.name
1363	new_plot.is_data = False
1364	new_plot.name = model.name + " ["+ str(model.__class__.__name__)+ "]"
1365
1366	theory_data = deepcopy(new_plot)
1367	theory_data.name = "Unknown"
1368	if toggle_mode_on:
1369	new_plot.id = str(page_id) + " Model"
1370	wx.PostEvent(self.parent,
1371	NewPlotEvent(group_id=str(page_id) + " Model1D",
1372	action="Hide"))
1373
1374	self.page_finder[page_id].set_theory_data(new_plot)
1375	if data is None:
1376	data_id = None
1377	else:
1378	data_id = data.id
1379	self.parent.update_theory(data_id=data_id,
1380	theory=new_plot,
1381	state=state)
1382	current_pg = self.fit_panel.get_page_by_id(page_id)
1383	title = new_plot.title
1384
1385	wx.PostEvent(self.parent, NewPlotEvent(plot=new_plot,
1386	title=title))
1387	self.page_finder[page_id].set_theory_data(new_plot)
1388	# Chisqr in fitpage
1389	if update_chisqr:
1390	wx.PostEvent(current_pg,
1391	Chi2UpdateEvent(output=\
1392	self._cal_chisqr(data=data,
1393	page_id=page_id,
1394	index=index)))
1395	else:
1396	self._plot_residuals(page_id, data, index)
1397	msg = "Computation completed!"
1398	wx.PostEvent(self.parent, StatusEvent(status=msg, type="stop"))
1399
1400	def _draw_model2D(self, model, page_id, data=None, smearer=None,
1401	description=None, enable2D=False,
1402	state=None,
1403	toggle_mode_on=False,
1404	qmin=DEFAULT_QMIN, qmax=DEFAULT_QMAX,
1405	qstep=DEFAULT_NPTS,
1406	update_chisqr=True):
1407	"""
1408	draw model in 2D
1409
1410	:param model: instance of the model to draw
1411	:param description: the description of the model
1412	:param enable2D: when True allows to draw model 2D
1413	:param qmin: the minimum value to draw model 2D
1414	:param qmax: the maximum value to draw model 2D
1415	:param qstep: the number of division of Qx and Qy of the model to draw
1416
1417	"""
1418	x= numpy.linspace(start=-1*qmax,
1419	stop=qmax,
1420	num=qstep,
1421	endpoint=True)
1422	y = numpy.linspace(start= -1*qmax,
1423	stop=qmax,
1424	num=qstep,
1425	endpoint=True)
1426	if model is None:
1427	msg = "Panel with ID: %s does not contained model" % str(page_id)
1428	raise ValueError, msg
1429	## use data info instead
1430	if data is not None:
1431	## check if data2D to plot
1432	if hasattr(data, "x_bins"):
1433	enable2D = True
1434	x = data.x_bins
1435	y = data.y_bins
1436
1437	if not enable2D:
1438	return None, None
1439	try:
1440	from model_thread import Calc2D
1441	## If a thread is already started, stop it
1442	if (self.calc_2D is not None) and self.calc_2D.isrunning():
1443	self.calc_2D.stop()
1444	self.calc_2D = Calc2D(x=x,
1445	y=y,
1446	model=model,
1447	data=data,
1448	page_id=page_id,
1449	smearer=smearer,
1450	qmin=qmin,
1451	qmax=qmax,
1452	qstep=qstep,
1453	toggle_mode_on=toggle_mode_on,
1454	state=state,
1455	completefn=self._complete2D,
1456	#updatefn= self._update2D,
1457	update_chisqr=update_chisqr)
1458
1459	self.calc_2D.queue()
1460
1461	except:
1462	raise
1463	#msg = " Error occurred when drawing %s Model 2D: " % model.name
1464	#msg += " %s" % sys.exc_value
1465	#wx.PostEvent(self.parent, StatusEvent(status=msg))
1466
1467	def _draw_model1D(self, model, page_id, data=None, smearer=None,
1468	qmin=DEFAULT_QMIN, qmax=DEFAULT_QMAX,
1469	state=None,
1470	toggle_mode_on=False,
1471	qstep=DEFAULT_NPTS, update_chisqr=True,
1472	enable1D=True):
1473	"""
1474	Draw model 1D from loaded data1D
1475
1476	:param data: loaded data
1477	:param model: the model to plot
1478
1479	"""
1480	x= numpy.linspace(start=qmin,
1481	stop=qmax,
1482	num=qstep,
1483	endpoint=True
1484	)
1485	if data is not None:
1486	## check for data2D
1487	if hasattr(data,"x_bins"):
1488	return
1489	x = data.x
1490	if qmin == None :
1491	qmin == DEFAULT_QMIN
1492
1493	if qmax == None:
1494	qmax == DEFAULT_QMAX
1495	if not enable1D:
1496	return
1497	try:
1498	from model_thread import Calc1D
1499	## If a thread is already started, stop it
1500	if (self.calc_1D is not None) and self.calc_1D.isrunning():
1501	self.calc_1D.stop()
1502	self.calc_1D = Calc1D(x=x,
1503	data=data,
1504	model=model,
1505	page_id=page_id,
1506	qmin=qmin,
1507	qmax=qmax,
1508	smearer=smearer,
1509	state=state,
1510	toggle_mode_on=toggle_mode_on,
1511	completefn=self._complete1D,
1512	#updatefn = self._update1D,
1513	update_chisqr=update_chisqr)
1514
1515	self.calc_1D.queue()
1516
1517	except:
1518	msg = " Error occurred when drawing %s Model 1D: " % model.name
1519	msg += " %s" % sys.exc_value
1520	wx.PostEvent(self.parent, StatusEvent(status=msg))
1521
1522	def _cal_chisqr(self, page_id, data=None, index=None):
1523	"""
1524	Get handy Chisqr using the output from draw1D and 2D,
1525	instead of calling expansive CalcChisqr in guithread
1526	"""
1527	# default chisqr
1528	chisqr = None
1529
1530	# return None if data == None
1531	if data == None: return chisqr
1532
1533	# Get data: data I, theory I, and data dI in order
1534	if data.__class__.__name__ == "Data2D":
1535	if index == None:
1536	index = numpy.ones(len(data.data),ntype=bool)
1537	# get rid of zero error points
1538	index = index & (data.err_data != 0 )
1539	index = index & (numpy.isfinite(data.data))
1540	fn = data.data[index]
1541	theory_data = self.page_finder[page_id].get_theory_data()
1542	gn = theory_data.data[index]
1543	en = data.err_data[index]
1544	else:
1545	# 1 d theory from model_thread is only in the range of index
1546	if index == None:
1547	index = numpy.ones(len(data.y), ntype=bool)
1548	if data.dy == None or data.dy == []:
1549	dy = numpy.ones(len(data.y))
1550	else:
1551	## Set consitently w/AbstractFitengine:
1552	# But this should be corrected later.
1553	dy = deepcopy(data.dy)
1554	dy[dy==0] = 1
1555	fn = data.y[index]
1556	theory_data = self.page_finder[page_id].get_theory_data()
1557	gn = theory_data.y
1558	en = dy[index]
1559
1560	# residual
1561	res = (fn - gn) / en
1562	residuals = res[numpy.isfinite(res)]
1563	# get chisqr only w/finite
1564	chisqr = numpy.average(residuals * residuals)
1565
1566	self._plot_residuals(page_id, data, index)
1567	return chisqr
1568
1569
1570
1571	def _plot_residuals(self, page_id, data=None, index=None):
1572	"""
1573	Plot the residuals
1574
1575	:param data: data
1576	:param index: index array (bool)
1577	: Note: this is different from the residuals in cal_chisqr()
1578	"""
1579	if data == None:
1580	return
1581
1582	# Get data: data I, theory I, and data dI in order
1583	if data.__class__.__name__ == "Data2D":
1584	# build residuals
1585	#print data
1586	residuals = Data2D()
1587	#residuals.copy_from_datainfo(data)
1588	# Not for trunk the line below, instead use the line above
1589	data.clone_without_data(len(data.data), residuals)
1590	residuals.data = None
1591	fn = data.data#[index]
1592	theory_data = self.page_finder[page_id].get_theory_data()
1593	gn = theory_data.data#[index]
1594	en = data.err_data#[index]
1595	residuals.data = (fn - gn) / en
1596	residuals.qx_data = data.qx_data#[index]
1597	residuals.qy_data = data.qy_data #[index]
1598	residuals.q_data = data.q_data#[index]
1599	residuals.err_data = numpy.ones(len(residuals.data))#[index]
1600	residuals.xmin = min(residuals.qx_data)
1601	residuals.xmax = max(residuals.qx_data)
1602	residuals.ymin = min(residuals.qy_data)
1603	residuals.ymax = max(residuals.qy_data)
1604	residuals.q_data = data.q_data#[index]
1605	residuals.mask = data.mask
1606	residuals.scale = 'linear'
1607	#print "print data",residuals
1608	# check the lengths
1609	if len(residuals.data) != len(residuals.q_data):
1610	return
1611
1612	else:
1613	# 1 d theory from model_thread is only in the range of index
1614	if data.dy == None or data.dy == []:
1615	dy = numpy.ones(len(data.y))
1616	else:
1617	## Set consitently w/AbstractFitengine:
1618	## But this should be corrected later.
1619	dy = deepcopy(data.dy)
1620	dy[dy==0] = 1
1621	fn = data.y[index]
1622	theory_data = self.page_finder[page_id].get_theory_data()
1623	gn = theory_data.y
1624	en = dy[index]
1625	# build residuals
1626	residuals = Data1D()
1627	residuals.y = (fn - gn) / en
1628	residuals.x = data.x[index]
1629	residuals.dy = numpy.ones(len(residuals.y))
1630	residuals.dx = None
1631	residuals.dxl = None
1632	residuals.dxw = None
1633	residuals.ytransform = 'y'
1634	# For latter scale changes
1635	residuals.xaxis('\\rm{Q} ', 'A^{-1}')
1636	residuals.yaxis('\\rm{Residuals} ', 'normalized')
1637
1638	new_plot = residuals
1639	if data.id == None:
1640	data.id = data.name
1641	name = data.id
1642	new_plot.name = "Residuals for " + str(data.name)
1643	## allow to highlight data when plotted
1644	new_plot.interactive = True
1645	## when 2 data have the same id override the 1 st plotted
1646	new_plot.id = new_plot.name#name + " residuals"
1647	##group_id specify on which panel to plot this data
1648	new_plot.group_id = new_plot.id
1649	#new_plot.is_data = True
1650	##post data to plot
1651	title = new_plot.name
1652
1653	# plot data
1654	wx.PostEvent(self.parent, NewPlotEvent(plot=new_plot, title=title))
1655
1656	#def profile(fn, args, *kw):
1657	# import cProfile, pstats, os
1658	# global call_result
1659	# def call():
1660	# global call_result
1661	# call_result = fn(args, *kw)
1662	# cProfile.runctx('call()', dict(call=call), {}, 'profile.out')
1663	# stats = pstats.Stats('profile.out')
1664	# #stats.sort_stats('time')
1665	# stats.sort_stats('calls')
1666	# stats.print_stats()
1667	# os.unlink('profile.out')
1668	# return call_result
1669	if __name__ == "__main__":
1670	i = Plugin()
1671
1672
1673
1674

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SasView

source: sasview/sansview/perspectives/fitting/fitting.py @ 2717081

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