fitting.py @ 07c8630

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 07c8630 was 59afa71, checked in by Jae Cho <jhjcho@…>, 13 years ago
fixed more for simfit
Property mode set to `100644`
File size: 66.3 KB

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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	if sys.platform.count("darwin")==0:
53	ON_MAC = False
54	else:
55	ON_MAC = True
56
57	class Plugin(PluginBase):
58	"""
59	Fitting plugin is used to perform fit
60	"""
61	def __init__(self, standalone=False):
62	PluginBase.__init__(self, name="Fitting", standalone=standalone)
63
64	#list of panel to send to guiframe
65	self.mypanels = []
66	# reference to the current running thread
67	self.calc_2D = None
68	self.calc_1D = None
69	self.fit_thread_list = {}
70	self.residuals = None
71	self.fit_panel = None
72	# Start with a good default
73	self.elapsed = 0.022
74	# the type of optimizer selected, park or scipy
75	self.fitter = None
76	self.fit_panel = None
77	#let fit ready
78	self.fitproblem_count = None
79	#Flag to let the plug-in know that it is running stand alone
80	self.standalone = True
81	## dictionary of page closed and id
82	self.closed_page_dict = {}
83	## Fit engine
84	self._fit_engine = 'scipy'
85	## Relative error desired in the sum of squares (float); scipy only
86	self.ftol=1.49012e-08
87	#List of selected data
88	self.selected_data_list = []
89	## list of slicer panel created to display slicer parameters and results
90	self.slicer_panels = []
91	# model 2D view
92	self.model2D_id = None
93	#keep reference of the simultaneous fit page
94	self.sim_page = None
95	self.index_model = 0
96	#Create a reader for fit page's state
97	self.state_reader = None
98	self._extensions = '.fitv'
99	self.scipy_id = wx.NewId()
100	self.park_id = wx.NewId()
101
102	self.temp_state = []
103	self.state_index = 0
104	self.sfile_ext = None
105	# take care of saving data, model and page associated with each other
106	self.page_finder = {}
107	# Log startup
108	logging.info("Fitting plug-in started")
109
110	def populate_menu(self, owner):
111	"""
112	Create a menu for the Fitting plug-in
113
114	:param id: id to create a menu
115	:param owner: owner of menu
116
117	:return: list of information to populate the main menu
118
119	"""
120	#Menu for fitting
121	self.menu1 = wx.Menu()
122	id1 = wx.NewId()
123	simul_help = "Add new fit panel"
124	self.menu1.Append(id1, '&New Fit Page',simul_help)
125	wx.EVT_MENU(owner, id1, self.on_add_new_page)
126	self.menu1.AppendSeparator()
127	id1 = wx.NewId()
128	simul_help = "Simultaneous Fit"
129	self.menu1.Append(id1, '&Simultaneous Fit',simul_help)
130	wx.EVT_MENU(owner, id1, self.on_add_sim_page)
131	self.menu1.AppendSeparator()
132	#Set park engine
133
134	scipy_help= "Scipy Engine: Perform Simple fit. More in Help window...."
135	self.menu1.AppendCheckItem(self.scipy_id, "Simple FitEngine [LeastSq]",scipy_help)
136	wx.EVT_MENU(owner, self.scipy_id, self._onset_engine_scipy)
137
138	park_help = "Park Engine: Perform Complex fit. More in Help window...."
139	self.menu1.AppendCheckItem(self.park_id, "Complex FitEngine [ParkMC]",park_help)
140	wx.EVT_MENU(owner, self.park_id, self._onset_engine_park)
141
142	self.menu1.FindItemById(self.scipy_id).Check(True)
143	self.menu1.FindItemById(self.park_id).Check(False)
144	#create menubar items
145	return [(self.menu1, self.sub_menu)]
146
147	def on_add_sim_page(self, event):
148	"""
149	Create a page to access simultaneous fit option
150	"""
151	if self.sim_page != None:
152	msg= "Simultaneous Fit page already opened"
153	wx.PostEvent(self.parent, StatusEvent(status= msg))
154	return
155
156	self.sim_page= self.fit_panel.add_sim_page()
157
158	def help(self, evt):
159	"""
160	Show a general help dialog.
161	"""
162	from help_panel import HelpWindow
163	frame = HelpWindow(None, -1, 'HelpWindow')
164	frame.Show(True)
165
166	def get_context_menu(self, plotpanel=None):
167	"""
168	Get the context menu items available for P(r).them allow fitting option
169	for Data2D and Data1D only.
170
171	:param graph: the Graph object to which we attach the context menu
172
173	:return: a list of menu items with call-back function
174
175	:note: if Data1D was generated from Theory1D
176	the fitting option is not allowed
177
178	"""
179	graph = plotpanel.graph
180	fit_option = "Select data for fitting"
181	fit_hint = "Dialog with fitting parameters "
182
183	if graph.selected_plottable not in plotpanel.plots:
184	return []
185	item = plotpanel.plots[graph.selected_plottable]
186	if item.__class__.__name__ is "Data2D":
187	if hasattr(item,"is_data"):
188	if item.is_data:
189	return [[fit_option, fit_hint, self._onSelect]]
190	else:
191	return []
192	return [[fit_option, fit_hint, self._onSelect]]
193	else:
194
195	# if is_data is true , this in an actual data loaded
196	#else it is a data created from a theory model
197	if hasattr(item,"is_data"):
198	if item.is_data:
199	return [[fit_option, fit_hint,
200	self._onSelect]]
201	else:
202	return []
203	return []
204
205
206	def get_panels(self, parent):
207	"""
208	Create and return a list of panel objects
209	"""
210	self.parent = parent
211	#self.parent.Bind(EVT_FITSTATE_UPDATE, self.on_set_state_helper)
212	# Creation of the fit panel
213	self.fit_panel = FitPanel(parent=self.parent, manager=self)
214	self.on_add_new_page(event=None)
215	#Set the manager for the main panel
216	self.fit_panel.set_manager(self)
217	# List of windows used for the perspective
218	self.perspective = []
219	self.perspective.append(self.fit_panel.window_name)
220
221	#index number to create random model name
222	self.index_model = 0
223	self.index_theory= 0
224	self.parent.Bind(EVT_SLICER_PANEL, self._on_slicer_event)
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	dlg.Destroy()
272
273	else:
274	selected_data_list = data_list
275	try:
276	for data in selected_data_list:
277	page = self.add_fit_page(data=data)
278	wx.PostEvent(self.parent, NewPlotEvent(plot=data,
279	title=str(data.title)))
280	except:
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.uid, 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	del self.fit_thread_list[uid]
479	#set the fit button label of page when fit stop is trigger from
480	#simultaneous fit pane
481	if self.sim_page is not None and uid == self.sim_page.uid:
482	for uid, value in self.page_finder.iteritems():
483	if value.get_scheduled() == 1:
484	if uid in self.fit_panel.opened_pages.keys():
485	panel = self.fit_panel.opened_pages[uid]
486	panel. _on_fit_complete()
487
488	def set_smearer(self, uid, smearer, qmin=None, qmax=None, draw=True,
489	enable2D=False):
490	"""
491	Get a smear object and store it to a fit problem
492
493	:param smearer: smear object to allow smearing data
494
495	"""
496	if uid not in self.page_finder.keys():
497	msg = "Cannot find ID: %s in page_finder" % str(uid)
498	raise ValueError, msg
499	self.page_finder[uid].set_smearer(smearer)
500	self.page_finder[uid].set_enable2D(enable2D)
501	if draw:
502	## draw model 1D with smeared data
503	data = self.page_finder[uid].get_fit_data()
504	model = self.page_finder[uid].get_model()
505	if model is None:
506	return
507	enable1D = True
508	enable2D = self.page_finder[uid].get_enable2D()
509	if enable2D:
510	enable1D = False
511
512	## if user has already selected a model to plot
513	## redraw the model with data smeared
514	smear = self.page_finder[uid].get_smearer()
515	self.draw_model(model=model, data=data, page_id=uid, smearer=smear,
516	enable1D=enable1D, enable2D=enable2D,
517	qmin=qmin, qmax=qmax)
518	self._mac_sleep(0.2)
519
520	def _mac_sleep(self, sec=0.2):
521	"""
522	Give sleep to MAC
523	"""
524	if ON_MAC:
525	time.sleep(sec)
526
527	def draw_model(self, model, page_id, data=None, smearer=None,
528	enable1D=True, enable2D=False,
529	state=None,
530	toggle_mode_on=False,
531	qmin=DEFAULT_QMIN, qmax=DEFAULT_QMAX,
532	qstep=DEFAULT_NPTS,
533	update_chisqr=True):
534	"""
535	Draw model.
536
537	:param model: the model to draw
538	:param name: the name of the model to draw
539	:param data: the data on which the model is based to be drawn
540	:param description: model's description
541	:param enable1D: if true enable drawing model 1D
542	:param enable2D: if true enable drawing model 2D
543	:param qmin: Range's minimum value to draw model
544	:param qmax: Range's maximum value to draw model
545	:param qstep: number of step to divide the x and y-axis
546	:param update_chisqr: update chisqr [bool]
547
548	"""
549	if data.__class__.__name__ == "Data1D" or not enable2D:
550	## draw model 1D with no loaded data
551	self._draw_model1D(model=model,
552	data=data,
553	page_id=page_id,
554	enable1D=enable1D,
555	smearer=smearer,
556	qmin=qmin,
557	qmax=qmax,
558	toggle_mode_on=toggle_mode_on,
559	state=state,
560	qstep=qstep,
561	update_chisqr=update_chisqr)
562	else:
563	## draw model 2D with no initial data
564	self._draw_model2D(model=model,
565	page_id=page_id,
566	data=data,
567	enable2D=enable2D,
568	smearer=smearer,
569	qmin=qmin,
570	qmax=qmax,
571	state=state,
572	toggle_mode_on=toggle_mode_on,
573	qstep=qstep,
574	update_chisqr=update_chisqr)
575
576	def onFit(self, uid=None):
577	"""
578	perform fit
579
580	: param type: uid for single fit, None for simultaneous fit
581	"""
582	from sans.fit.Fitting import Fit
583	from .fit_thread import FitThread
584	from .console import ConsoleUpdate
585	## count the number of fitproblem schedule to fit
586	#if uid == None or self._fit_engine == "park":
587	fitproblem_count = 0
588	for value in self.page_finder.values():
589	if value.get_scheduled() == 1:
590	fitproblem_count += 1
591
592	## if simultaneous fit change automatically the engine to park
593	# scipy can not handle two thread running at the same time
594	if fitproblem_count > 1 or len(self.fit_thread_list)>0:
595	self._on_change_engine(engine='park')
596
597	self.fitproblem_count = fitproblem_count
598
599	fitter = Fit(self._fit_engine)
600	if self._fit_engine == "park":
601	engineType = "Simultaneous Fit"
602	else:
603	engineType = "Single Fit"
604
605	fproblemId = 0
606	self.current_pg = None
607	list_page_id = []
608	for page_id, value in self.page_finder.iteritems():
609	# For simulfit (uid give with None), do for-loop
610	# if uid is specified (singlefit), do it only on the page.
611	if engineType == "Single Fit":
612	if page_id != uid:
613	continue
614	try:
615	if value.get_scheduled() == 1:
616	#Get list of parameters name to fit
617	pars = []
618	templist = []
619
620	page = self.fit_panel.get_page_by_id(page_id)
621	templist = page.get_param_list()
622	# missing fit parameters
623	#if not templist:
624	# return
625	# have the list
626	for element in templist:
627	name = str(element[1])
628	pars.append(name)
629	#Set Engine (model , data) related to the page on
630	self._fit_helper(value=value, pars=pars,
631	fitter=fitter,
632	fitproblem_id=fproblemId,
633	title=engineType)
634	list_page_id.append(page_id)
635	fproblemId += 1
636	current_page_id = page_id
637	except:
638	#raise
639	msg= "%s error: %s" % (engineType, sys.exc_value)
640	wx.PostEvent(self.parent, StatusEvent(status=msg, info="error",
641	type="stop"))
642	return
643	## If a thread is already started, stop it
644	#if self.calc_fit!= None and self.calc_fit.isrunning():
645	# self.calc_fit.stop()
646	msg = "Fitting is in progress..."
647	wx.PostEvent( self.parent, StatusEvent(status=msg, type="progress" ))
648
649	#Handler used for park engine displayed message
650	handler = ConsoleUpdate(parent=self.parent,
651	manager=self,
652	improvement_delta=0.1)
653
654	self._mac_sleep(0.2)
655	## perform single fit
656
657	if fitproblem_count == 1:
658	calc_fit = FitThread(handler = handler,
659	fn=fitter,
660	pars=pars,
661	page_id=list_page_id,
662	completefn=self._single_fit_completed,
663	ftol=self.ftol)
664	else:
665	current_page_id = self.sim_page.uid
666	## Perform more than 1 fit at the time
667	calc_fit = FitThread(handler=handler,
668	fn=fitter,
669	page_id=list_page_id,
670	updatefn=handler.update_fit,
671	completefn=self._simul_fit_completed,
672	ftol=self.ftol)
673
674	self.fit_thread_list[current_page_id] = calc_fit
675	self._mac_sleep(0.2)
676
677	#self.ready_fit(calc_fit=calc_fit)
678	calc_fit.queue()
679
680	def ready_fit(self, calc_fit):
681	"""
682	Ready for another fit
683	"""
684	if self.fitproblem_count != None and self.fitproblem_count > 1:
685	calc_fit.ready(2.5)
686
687	else:
688	time.sleep(0.4)
689
690	def remove_plot(self, uid, theory=False):
691	"""
692	remove model plot when a fit page is closed
693	"""
694	fitproblem = self.page_finder[uid]
695	data = fitproblem.get_fit_data()
696	model = fitproblem.get_model()
697	plot_id = None
698	if model is not None:
699	plot_id = data.id + name
700	if theory:
701	plot_id = data.id
702	group_id = data.group_id
703	wx.PostEvent(self.parent, NewPlotEvent(id=plot_id,
704	group_id=group_id,
705	action='remove'))
706
707	def store_data(self, uid, data=None, caption=None):
708	"""
709	Helper to save page reference into the plug-in
710
711	:param page: page to store
712
713	"""
714	#create a fitproblem storing all link to data,model,page creation
715	if not uid in self.page_finder.keys():
716	self.page_finder[uid] = FitProblem()
717	self.page_finder[uid].set_fit_data(data)
718	self.page_finder[uid].set_fit_tab_caption(caption)
719
720	def on_add_new_page(self, event=None):
721	"""
722	ask fit panel to create a new empty page
723	"""
724	try:
725	page = self.fit_panel.add_empty_page()
726	page_caption = page.window_name
727	# add data associated to the page created
728	if page != None:
729	self.store_data(uid=page.uid, caption=page_caption,
730	data=page.get_data())
731	wx.PostEvent(self.parent, StatusEvent(status="Page Created",
732	info="info"))
733	else:
734	msg = "Page was already Created"
735	wx.PostEvent(self.parent, StatusEvent(status=msg,
736	info="warning"))
737	self.set_top_panel()
738	except:
739	raise
740	#msg = "Creating Fit page: %s"%sys.exc_value
741	#wx.PostEvent(self.parent, StatusEvent(status=msg, info="error"))
742
743
744	def add_fit_page(self, data):
745	"""
746	given a data, ask to the fitting panel to create a new fitting page,
747	get this page and store it into the page_finder of this plug-in
748	"""
749	page = self.fit_panel.set_data(data)
750	page_caption = page.window_name
751	#append Data1D to the panel containing its theory
752	#if theory already plotted
753	if page.uid in self.page_finder:
754	theory_data = self.page_finder[page.uid].get_theory_data()
755	if issubclass(data.__class__, Data2D):
756	data.group_id = wx.NewId()
757	if theory_data is not None:
758	group_id = str(page.uid) + " Model1D"
759	wx.PostEvent(self.parent,
760	NewPlotEvent(group_id=group_id,
761	action="delete"))
762	self.parent.update_data(prev_data=theory_data, new_data=data)
763	else:
764	if theory_data is not None:
765	group_id = str(page.uid) + " Model2D"
766	data.group_id = theory_data.group_id
767	wx.PostEvent(self.parent,
768	NewPlotEvent(group_id=group_id,
769	action="delete"))
770	self.parent.update_data(prev_data=theory_data, new_data=data)
771
772	self.store_data(uid=page.uid, data=data, caption=page.window_name)
773	if self.sim_page is not None:
774	self.sim_page.draw_page()
775	return page
776
777	def _onEVT_SLICER_PANEL(self, event):
778	"""
779	receive and event telling to update a panel with a name starting with
780	event.panel_name. this method update slicer panel for a given interactor.
781
782	:param event: contains type of slicer , paramaters for updating the panel
783	and panel_name to find the slicer 's panel concerned.
784	"""
785	for item in self.parent.panels:
786	if self.parent.panels[item].window_caption.startswith(event.panel_name):
787	self.parent.panels[item].set_slicer(event.type, event.params)
788
789	self.parent._mgr.Update()
790
791	def _closed_fitpage(self, event):
792	"""
793	request fitpanel to close a given page when its unique data is removed
794	from the plot. close fitpage only when the a loaded data is removed
795	"""
796	if event is None or event.data is None:
797	return
798	if hasattr(event.data,"is_data"):
799	if not event.data.is_data or \
800	event.data.__class__.__name__ == "Data1D":
801	self.fit_panel.close_page_with_data(event.data)
802
803	def _add_page_onmenu(self, name, fitproblem=None):
804	"""
805	Add name of a closed page of fitpanel in a menu
806	"""
807	list = self.menu1.GetMenuItems()
808	for item in list:
809	if name == item.GetItemLabel():
810	self.closed_page_dict[name][1] = fitproblem
811
812	if not name in self.closed_page_dict.keys():
813	# Post paramters
814	event_id = wx.NewId()
815	self.menu1.Append(event_id, name, "Show %s fit panel" % name)
816	self.closed_page_dict[name]= [event_id, fitproblem]
817	wx.EVT_MENU(self.parent, event_id, self._open_closed_page)
818
819	def _open_closed_page(self, event):
820	"""
821	reopen a closed page
822	"""
823	for name, value in self.closed_page_dict.iteritems():
824	if event.GetId() in value:
825	uid,fitproblem = value
826	if name !="Model":
827	data= fitproblem.get_fit_data()
828	page = self.fit_panel.add_fit_page(data=data, reset=True)
829	if fitproblem != None:
830	self.page_finder[uid] = fitproblem
831	if self.sim_page != None:
832	self.sim_page.draw_page()
833
834	else:
835	model = fitproblem
836	self.fit_panel.add_model_page(model=model, topmenu=True,
837	reset= True)
838	break
839
840	def _reset_schedule_problem(self, value=0, uid=None):
841	"""
842	unschedule or schedule all fitproblem to be fit
843	"""
844	# case that uid is not specified
845	if uid == None:
846	for page_id in self.page_finder.keys():
847	self.page_finder[page_id].schedule_tofit(value)
848	# when uid is given
849	else:
850	self.page_finder[uid].schedule_tofit(value)
851
852	def _fit_helper(self, pars, value, fitproblem_id,fitter, title="Single Fit " ):
853	"""
854	helper for fitting
855	"""
856	metadata = value.get_fit_data()
857	model = value.get_model()
858	smearer = value.get_smearer()
859	qmin, qmax = value.get_range()
860	self.fit_id = fitproblem_id
861	#Create list of parameters for fitting used
862	templist = []
863
864	try:
865	#Extra list of parameters and their constraints
866	listOfConstraint = []
867
868	param = value.get_model_param()
869	if len(param) > 0:
870	for item in param:
871	## check if constraint
872	if item[0] != None and item[1] != None:
873	listOfConstraint.append((item[0],item[1]))
874
875	#Do the single fit
876	fitter.set_model(model, self.fit_id,
877	pars, constraints=listOfConstraint)
878
879	fitter.set_data(data=metadata, id=self.fit_id,
880	smearer=smearer, qmin=qmin, qmax=qmax)
881
882	fitter.select_problem_for_fit(id=self.fit_id,
883	value=value.get_scheduled())
884	value.clear_model_param()
885	except:
886	raise
887	#msg = title + " error: %s" % sys.exc_value
888	#wx.PostEvent(self.parent, StatusEvent(status=msg, type="stop"))
889
890	def _onSelect(self,event):
891	"""
892	when Select data to fit a new page is created .Its reference is
893	added to self.page_finder
894	"""
895	self.panel = event.GetEventObject()
896	Plugin.on_perspective(self, event=event)
897	for plottable in self.panel.graph.plottables:
898	if plottable.__class__.__name__ in ["Data1D", "Theory1D"]:
899	data_id = self.panel.graph.selected_plottable
900	if plottable == self.panel.plots[data_id]:
901	data = plottable
902	self.add_fit_page(data=data)
903	return
904	else:
905	data = plottable
906	self.add_fit_page(data=data)
907	self.set_top_panel()
908
909	def update_fit(self, result=None, msg=""):
910	"""
911	"""
912	print "update_fit result", result
913
914	def _single_fit_completed(self, result, pars, page_id, elapsed=None):
915	"""
916	Display fit result on one page of the notebook.
917
918	:param result: result of fit
919	:param pars: list of names of parameters fitted
920	:param current_pg: the page where information will be displayed
921	:param qmin: the minimum value of x to replot the model
922	:param qmax: the maximum value of x to replot model
923
924	"""
925	self._mac_sleep(0.2)
926	if page_id[0] in self.fit_thread_list.keys():
927	del self.fit_thread_list[page_id[0]]
928	try:
929	if result == None:
930	self._update_fit_button(page_id)
931	msg= "Single Fitting did not converge!!!"
932	wx.PostEvent(self.parent,
933	StatusEvent(status=msg,
934	info="warning",
935	type="stop"))
936	return
937	if not numpy.isfinite(result.fitness) or \
938	numpy.any(result.pvec == None) or \
939	not numpy.all(numpy.isfinite(result.pvec)):
940	msg = "Single Fitting did not converge!!!"
941	wx.PostEvent(self.parent,
942	StatusEvent(status=msg,
943	info="warning",
944	type="stop"))
945	self._update_fit_button(page_id)
946	return
947
948	for uid in page_id:
949	value = self.page_finder[uid]
950	model = value.get_model()
951	page_id = uid
952
953	param_name = []
954	for name in pars:
955	param_name.append(name)
956
957	cpage = self.fit_panel.get_page_by_id(uid)
958	# Make sure we got all results (CallAfter is important to MAC)
959	wx.CallAfter(cpage.onsetValues, result.fitness,
960	param_name, result.pvec, result.stderr)
961	cpage._on_fit_complete()
962	if result.stderr == None:
963	msg = "Fit Abort: "
964	else:
965	msg = "Fitting: "
966	msg += "Completed!!!"
967	wx.PostEvent(self.parent, StatusEvent(status=msg))
968	return
969	except ValueError:
970	self._update_fit_button(page_id)
971	msg = "Single Fitting did not converge!!!"
972	wx.PostEvent(self.parent, StatusEvent(status=msg, info="error",
973	type="stop"))
974	return
975	except:
976	self._update_fit_button(page_id)
977	msg = "Single Fit completed but Following"
978	msg += " error occurred:%s" % sys.exc_value
979	wx.PostEvent(self.parent, StatusEvent(status=msg, info="error",
980	type="stop"))
981	raise
982	return
983
984	def _simul_fit_completed(self, result, page_id,pars=None, elapsed=None):
985	"""
986	Parameter estimation completed,
987	display the results to the user
988
989	:param alpha: estimated best alpha
990	:param elapsed: computation time
991
992	"""
993	self.fit_thread_list = {}
994	if page_id is None:
995	page_id = []
996	## fit more than 1 model at the same time
997	self._mac_sleep(0.2)
998	try:
999	msg = ""
1000	if result == None:
1001	self._update_fit_button(page_id)
1002	msg= "Complex Fitting did not converge!!!"
1003	wx.PostEvent(self.parent, StatusEvent(status=msg,
1004	type="stop"))
1005	return
1006	if not numpy.isfinite(result.fitness) or \
1007	numpy.any(result.pvec == None) or not \
1008	numpy.all(numpy.isfinite(result.pvec)):
1009	self._update_fit_button(page_id)
1010	msg= "Simultaneous Fitting did not converge!!!"
1011	wx.PostEvent(self.parent, StatusEvent(status=msg,type="stop"))
1012	return
1013
1014	for uid in page_id:
1015	value = self.page_finder[uid]
1016	model = value.get_model()
1017	data = value.get_fit_data()
1018	small_param_name = []
1019	small_out = []
1020	small_cov = []
1021	#Separate result in to data corresponding to each page
1022	for p in result.parameters:
1023	model_name, param_name = self.split_string(p.name)
1024	if model.name == model_name:
1025	p_name= model.name+"."+param_name
1026	if p.name == p_name:
1027	if p.value != None and numpy.isfinite(p.value):
1028	small_out.append(p.value)
1029	small_param_name.append(param_name)
1030	small_cov.append(p.stderr)
1031	# Display result on each page
1032	cpage = self.fit_panel.get_page_by_id(uid)
1033	wx.CallAfter(cpage.onsetValues,
1034	result.fitness,
1035	small_param_name,
1036	small_out,small_cov)
1037	cpage._on_fit_complete()
1038	msg = "Fit completed!"
1039	wx.PostEvent(self.parent, StatusEvent(status=msg))
1040	except Exception:
1041	self._update_fit_button(page_id)
1042	msg = "Complex Fitting did not converge!!!"
1043	wx.PostEvent(self.parent, StatusEvent(status=msg, info="error",
1044	type="stop"))
1045	return
1046
1047	except:
1048	self._update_fit_button(page_id)
1049	msg = "Simultaneous Fit completed"
1050	msg += " but Following error occurred:%s" % sys.exc_value
1051	wx.PostEvent(self.parent, StatusEvent(status=msg, type="stop"))
1052
1053	def _update_fit_button(self, page_id):
1054	"""
1055	Update Fit button when fit stopped
1056
1057	: parameter page_id: fitpage where the button is
1058	"""
1059	if page_id.__class__.__name__ != 'list':
1060	page_id = [page_id]
1061	for uid in page_id:
1062	page = self.fit_panel.get_page_by_id(uid)
1063	page._on_fit_complete()
1064
1065	def _on_show_panel(self, event):
1066	"""
1067	"""
1068	pass
1069
1070	def _onset_engine_park(self,event):
1071	"""
1072	set engine to park
1073	"""
1074	self._on_change_engine('park')
1075
1076	def _onset_engine_scipy(self,event):
1077	"""
1078	set engine to scipy
1079	"""
1080	self._on_change_engine('scipy')
1081
1082	def _on_slicer_event(self, event):
1083	"""
1084	Receive a panel as event and send it to guiframe
1085
1086	:param event: event containing a panel
1087
1088	"""
1089	if event.panel is not None:
1090	new_panel = event.panel
1091	self.slicer_panels.append(event.panel)
1092	# Set group ID if available
1093	event_id = self.parent.popup_panel(new_panel)
1094	#self.menu3.Append(event_id, new_panel.window_caption,
1095	# "Show %s plot panel" % new_panel.window_caption)
1096	# Set id to allow us to reference the panel later
1097
1098	new_panel.uid = event_id
1099	self.mypanels.append(new_panel)
1100
1101	def _onclearslicer(self, event):
1102	"""
1103	Clear the boxslicer when close the panel associate with this slicer
1104	"""
1105	name =event.GetPane().caption
1106
1107	for panel in self.slicer_panels:
1108	if panel.window_caption==name:
1109
1110	for item in self.parent.panels:
1111	if hasattr(self.parent.panels[item],"uid"):
1112	if self.parent.panels[item].uid ==panel.base.uid:
1113	self.parent.panels[item].onClearSlicer(event)
1114	self.parent._mgr.Update()
1115	break
1116	break
1117
1118	def _return_engine_type(self):
1119	"""
1120	return the current type of engine
1121	"""
1122	return self._fit_engine
1123
1124
1125	def _on_change_engine(self, engine='park'):
1126	"""
1127	Allow to select the type of engine to perform fit
1128
1129	:param engine: the key work of the engine
1130
1131	"""
1132	## saving fit engine name
1133	self._fit_engine = engine
1134	## change menu item state
1135	if engine=="park":
1136	self.menu1.FindItemById(self.park_id).Check(True)
1137	self.menu1.FindItemById(self.scipy_id).Check(False)
1138	else:
1139	self.menu1.FindItemById(self.park_id).Check(False)
1140	self.menu1.FindItemById(self.scipy_id).Check(True)
1141	## post a message to status bar
1142	msg = "Engine set to: %s" % self._fit_engine
1143	wx.PostEvent(self.parent,
1144	StatusEvent(status=msg))
1145	## send the current engine type to fitpanel
1146	self.fit_panel._on_engine_change(name=self._fit_engine)
1147
1148
1149	def _on_model_panel(self, evt):
1150	"""
1151	react to model selection on any combo box or model menu.plot the model
1152
1153	:param evt: wx.combobox event
1154
1155	"""
1156	model = evt.model
1157	uid = evt.uid
1158	qmin = evt.qmin
1159	qmax = evt.qmax
1160	smearer = evt.smearer
1161
1162	if model == None:
1163	return
1164
1165	if self.page_finder[uid].get_model() is None:
1166	model.name = "M" + str(self.index_model)
1167	self.index_model += 1
1168	else:
1169	model.name = self.page_finder[uid].get_model().name
1170	# save the name containing the data name with the appropriate model
1171	self.page_finder[uid].set_model(model)
1172	self.page_finder[uid].set_range(qmin=qmin, qmax=qmax)
1173	if self.sim_page is not None:
1174	self.sim_page.draw_page()
1175
1176	def _update1D(self,x, output):
1177	"""
1178	Update the output of plotting model 1D
1179	"""
1180	msg = "Plot updating ... "
1181	wx.PostEvent(self.parent, StatusEvent(status=msg,type="update"))
1182	#self.ready_fit()
1183
1184
1185	def _fill_default_model2D(self, theory, page_id, qmax,qstep, qmin=None):
1186	"""
1187	fill Data2D with default value
1188
1189	:param theory: Data2D to fill
1190
1191	"""
1192	from DataLoader.data_info import Detector, Source
1193
1194	detector = Detector()
1195	theory.detector.append(detector)
1196	theory.source= Source()
1197
1198	## Default values
1199	theory.detector[0].distance= 8000 # mm
1200	theory.source.wavelength= 6 # A
1201	theory.detector[0].pixel_size.x= 5 # mm
1202	theory.detector[0].pixel_size.y= 5 # mm
1203
1204	theory.detector[0].beam_center.x= qmax
1205	theory.detector[0].beam_center.y= qmax
1206
1207	## create x_bins and y_bins of the model 2D
1208	pixel_width_x = theory.detector[0].pixel_size.x
1209	pixel_width_y = theory.detector[0].pixel_size.y
1210	center_x = theory.detector[0].beam_center.x/pixel_width_x
1211	center_y = theory.detector[0].beam_center.y/pixel_width_y
1212
1213	# theory default: assume the beam
1214	#center is located at the center of sqr detector
1215	xmax = qmax
1216	xmin = -qmax
1217	ymax = qmax
1218	ymin = -qmax
1219
1220	x= numpy.linspace(start= -1*qmax,
1221	stop=qmax,
1222	num=qstep,
1223	endpoint=True)
1224	y = numpy.linspace(start=-1*qmax,
1225	stop= qmax,
1226	num= qstep,
1227	endpoint=True)
1228
1229	## use data info instead
1230	new_x = numpy.tile(x, (len(y),1))
1231	new_y = numpy.tile(y, (len(x),1))
1232	new_y = new_y.swapaxes(0,1)
1233
1234	# all data reuire now in 1d array
1235	qx_data = new_x.flatten()
1236	qy_data = new_y.flatten()
1237
1238	q_data = numpy.sqrt(qx_dataqx_data+qy_dataqy_data)
1239	# set all True (standing for unmasked) as default
1240	mask = numpy.ones(len(qx_data), dtype = bool)
1241
1242	# calculate the range of qx and qy: this way,
1243	# it is a little more independent
1244	x_size = xmax- xmin
1245	y_size = ymax -ymin
1246
1247	# store x and y bin centers in q space
1248	x_bins = x
1249	y_bins = y
1250	# bin size: x- & y-directions
1251	xstep = x_size/len(x_bins-1)
1252	ystep = y_size/len(y_bins-1)
1253
1254	#theory.data = numpy.zeros(len(mask))
1255	theory.err_data = numpy.ones(len(mask))
1256	theory.qx_data = qx_data
1257	theory.qy_data = qy_data
1258	theory.q_data = q_data
1259	theory.mask = mask
1260	theory.x_bins = x_bins
1261	theory.y_bins = y_bins
1262
1263	# max and min taking account of the bin sizes
1264	theory.xmin = xmin
1265	theory.xmax = xmax
1266	theory.ymin = ymin
1267	theory.ymax = ymax
1268	theory.group_id = str(page_id) + " Model2D"
1269	theory.id = str(page_id) + " Model2D"
1270
1271	def _complete1D(self, x,y, page_id, elapsed,index,model,
1272	toggle_mode_on=False,state=None,
1273	data=None, update_chisqr=True):
1274	"""
1275	Complete plotting 1D data
1276	"""
1277	try:
1278	new_plot = Data1D(x=x, y=y)
1279	new_plot.is_data = False
1280	new_plot.symbol = GUIFRAME_ID.CURVE_SYMBOL_NUM
1281	if data != None:
1282	_xaxis, _xunit = data.get_xaxis()
1283	_yaxis, _yunit = data.get_yaxis()
1284	new_plot.title = data.name
1285	#if the theory is already plotted use the same group id
1286	#to replot
1287	if page_id in self.page_finder:
1288	theory_data = self.page_finder[page_id].get_theory_data()
1289	if theory_data is not None:
1290	data.group_id = theory_data.group_id
1291	#data is plotted before the theory, then take its group_id
1292	#assign to the new theory
1293	new_plot.group_id = data.group_id
1294
1295	else:
1296	_xaxis, _xunit = "\\rm{Q}", 'A^{-1}'
1297	_yaxis, _yunit = "\\rm{Intensity} ", "cm^{-1}"
1298	new_plot.title = "Analytical model 1D "
1299	#find a group id to plot theory without data
1300	new_plot.group_id = str(page_id) + " Model1D"
1301	new_plot.id = str(page_id) + " Model1D"
1302
1303	#find if this theory was already plotted and replace that plot given
1304	#the same id
1305
1306	theory_data = self.page_finder[page_id].get_theory_data()
1307	if theory_data is not None:
1308	new_plot.id = theory_data.id
1309
1310	new_plot.name = model.name + " ["+ str(model.__class__.__name__)+ "]"
1311	new_plot.xaxis(_xaxis, _xunit)
1312	new_plot.yaxis(_yaxis, _yunit)
1313	if toggle_mode_on:
1314	new_plot.id = str(page_id) + " Model"
1315	wx.PostEvent(self.parent,
1316	NewPlotEvent(group_id=str(page_id) + " Model2D",
1317	action="Hide"))
1318
1319	self.page_finder[page_id].set_theory_data(new_plot)
1320	if data is None:
1321	data_id = None
1322	else:
1323	data_id = data.id
1324
1325	self.parent.update_theory(data_id=data_id,
1326	theory=new_plot,
1327	state=state)
1328
1329	current_pg = self.fit_panel.get_page_by_id(page_id)
1330	title = new_plot.title
1331
1332	wx.PostEvent(self.parent, NewPlotEvent(plot=new_plot,
1333	title= str(title)))
1334
1335	self.page_finder[page_id].set_theory_data(new_plot)
1336
1337	if update_chisqr:
1338	wx.PostEvent(current_pg,
1339	Chi2UpdateEvent(output=self._cal_chisqr(data=data,
1340	page_id=page_id,
1341	index=index)))
1342	else:
1343	self._plot_residuals(page_id, data, index)
1344
1345	msg = "Computation completed!"
1346	wx.PostEvent( self.parent, StatusEvent(status=msg, type="stop" ))
1347
1348	#self.current_pg.state.theory_data = deepcopy(self.theory_data)
1349	except:
1350	raise
1351	#msg = " Error occurred when drawing %s Model 1D: " % new_plot.name
1352	#msg += " %s" % sys.exc_value
1353	#wx.PostEvent(self.parent, StatusEvent(status=msg, type="stop"))
1354
1355	def _update2D(self, output,time=None):
1356	"""
1357	Update the output of plotting model
1358	"""
1359	wx.PostEvent(self.parent, StatusEvent(status="Plot \
1360	#updating ... ", type="update"))
1361	#self.ready_fit()
1362
1363	def _complete2D(self, image, data, model, page_id, elapsed, index, qmin,
1364	qmax, toggle_mode_on=False,state=None,qstep=DEFAULT_NPTS,
1365	update_chisqr=True):
1366	"""
1367	Complete get the result of modelthread and create model 2D
1368	that can be plot.
1369	"""
1370	err_image = numpy.zeros(numpy.shape(image))
1371
1372	new_plot= Data2D(image=image, err_image=err_image)
1373	new_plot.name = model.name
1374	new_plot.title = "Analytical model 2D "
1375	if data is None:
1376	self._fill_default_model2D(theory=new_plot,
1377	qmax=qmax,
1378	page_id=page_id,
1379	qstep=qstep,
1380	qmin= qmin)
1381
1382	else:
1383	new_plot.id = str(page_id) + " Model2D"
1384	new_plot.group_id = str(page_id) + " Model2D"
1385	new_plot.x_bins = data.x_bins
1386	new_plot.y_bins = data.y_bins
1387	new_plot.detector = data.detector
1388	new_plot.source = data.source
1389	new_plot.is_data = False
1390	new_plot.qx_data = data.qx_data
1391	new_plot.qy_data = data.qy_data
1392	new_plot.q_data = data.q_data
1393	#numpy.zeros(len(data.err_data))#data.err_data
1394	new_plot.err_data = err_image
1395	new_plot.mask = data.mask
1396	## plot boundaries
1397	new_plot.ymin = data.ymin
1398	new_plot.ymax = data.ymax
1399	new_plot.xmin = data.xmin
1400	new_plot.xmax = data.xmax
1401	title = data.title
1402	if len(title) > 1:
1403	new_plot.title = "Model2D for " + data.name
1404	new_plot.is_data = False
1405	new_plot.name = model.name + " ["+ str(model.__class__.__name__)+ "]"
1406
1407	theory_data = deepcopy(new_plot)
1408	theory_data.name = "Unknown"
1409	if toggle_mode_on:
1410	new_plot.id = str(page_id) + " Model"
1411	wx.PostEvent(self.parent,
1412	NewPlotEvent(group_id=str(page_id) + " Model1D",
1413	action="Hide"))
1414
1415	self.page_finder[page_id].set_theory_data(new_plot)
1416	if data is None:
1417	data_id = None
1418	else:
1419	data_id = data.id
1420	self.parent.update_theory(data_id=data_id,
1421	theory=new_plot,
1422	state=state)
1423	current_pg = self.fit_panel.get_page_by_id(page_id)
1424	title = new_plot.title
1425
1426	wx.PostEvent(self.parent, NewPlotEvent(plot=new_plot,
1427	title=title))
1428	self.page_finder[page_id].set_theory_data(new_plot)
1429	# Chisqr in fitpage
1430	if update_chisqr:
1431	wx.PostEvent(current_pg,
1432	Chi2UpdateEvent(output=\
1433	self._cal_chisqr(data=data,
1434	page_id=page_id,
1435	index=index)))
1436	else:
1437	self._plot_residuals(page_id, data, index)
1438	msg = "Computation completed!"
1439	wx.PostEvent(self.parent, StatusEvent(status=msg, type="stop"))
1440
1441	def _draw_model2D(self, model, page_id, data=None, smearer=None,
1442	description=None, enable2D=False,
1443	state=None,
1444	toggle_mode_on=False,
1445	qmin=DEFAULT_QMIN, qmax=DEFAULT_QMAX,
1446	qstep=DEFAULT_NPTS,
1447	update_chisqr=True):
1448	"""
1449	draw model in 2D
1450
1451	:param model: instance of the model to draw
1452	:param description: the description of the model
1453	:param enable2D: when True allows to draw model 2D
1454	:param qmin: the minimum value to draw model 2D
1455	:param qmax: the maximum value to draw model 2D
1456	:param qstep: the number of division of Qx and Qy of the model to draw
1457
1458	"""
1459	x= numpy.linspace(start=-1*qmax,
1460	stop=qmax,
1461	num=qstep,
1462	endpoint=True)
1463	y = numpy.linspace(start= -1*qmax,
1464	stop=qmax,
1465	num=qstep,
1466	endpoint=True)
1467	if model is None:
1468	msg = "Panel with ID: %s does not contained model" % str(page_id)
1469	raise ValueError, msg
1470	## use data info instead
1471	if data is not None:
1472	## check if data2D to plot
1473	if hasattr(data, "x_bins"):
1474	enable2D = True
1475	x = data.x_bins
1476	y = data.y_bins
1477
1478	if not enable2D:
1479	return None, None
1480	try:
1481	from model_thread import Calc2D
1482	## If a thread is already started, stop it
1483	if (self.calc_2D is not None) and self.calc_2D.isrunning():
1484	self.calc_2D.stop()
1485	self.calc_2D = Calc2D(x=x,
1486	y=y,
1487	model=model,
1488	data=data,
1489	page_id=page_id,
1490	smearer=smearer,
1491	qmin=qmin,
1492	qmax=qmax,
1493	qstep=qstep,
1494	toggle_mode_on=toggle_mode_on,
1495	state=state,
1496	completefn=self._complete2D,
1497	#updatefn= self._update2D,
1498	update_chisqr=update_chisqr)
1499
1500	self.calc_2D.queue()
1501
1502	except:
1503	raise
1504	#msg = " Error occurred when drawing %s Model 2D: " % model.name
1505	#msg += " %s" % sys.exc_value
1506	#wx.PostEvent(self.parent, StatusEvent(status=msg))
1507
1508	def _draw_model1D(self, model, page_id, data=None, smearer=None,
1509	qmin=DEFAULT_QMIN, qmax=DEFAULT_QMAX,
1510	state=None,
1511	toggle_mode_on=False,
1512	qstep=DEFAULT_NPTS, update_chisqr=True,
1513	enable1D=True):
1514	"""
1515	Draw model 1D from loaded data1D
1516
1517	:param data: loaded data
1518	:param model: the model to plot
1519
1520	"""
1521	x= numpy.linspace(start=qmin,
1522	stop=qmax,
1523	num=qstep,
1524	endpoint=True
1525	)
1526	if data is not None:
1527	## check for data2D
1528	if hasattr(data,"x_bins"):
1529	return
1530	x = data.x
1531	if qmin == None :
1532	qmin == DEFAULT_QMIN
1533
1534	if qmax == None:
1535	qmax == DEFAULT_QMAX
1536	if not enable1D:
1537	return
1538	try:
1539	from model_thread import Calc1D
1540	## If a thread is already started, stop it
1541	if (self.calc_1D is not None) and self.calc_1D.isrunning():
1542	self.calc_1D.stop()
1543	self.calc_1D = Calc1D(x=x,
1544	data=data,
1545	model=model,
1546	page_id=page_id,
1547	qmin=qmin,
1548	qmax=qmax,
1549	smearer=smearer,
1550	state=state,
1551	toggle_mode_on=toggle_mode_on,
1552	completefn=self._complete1D,
1553	#updatefn = self._update1D,
1554	update_chisqr=update_chisqr)
1555
1556	self.calc_1D.queue()
1557	except:
1558	msg = " Error occurred when drawing %s Model 1D: " % model.name
1559	msg += " %s" % sys.exc_value
1560	wx.PostEvent(self.parent, StatusEvent(status=msg))
1561
1562	def _cal_chisqr(self, page_id, data=None, index=None):
1563	"""
1564	Get handy Chisqr using the output from draw1D and 2D,
1565	instead of calling expansive CalcChisqr in guithread
1566	"""
1567	# default chisqr
1568	chisqr = None
1569
1570	# return None if data == None
1571	if data == None: return chisqr
1572
1573	# Get data: data I, theory I, and data dI in order
1574	if data.__class__.__name__ == "Data2D":
1575	if index == None:
1576	index = numpy.ones(len(data.data),ntype=bool)
1577	# get rid of zero error points
1578	index = index & (data.err_data != 0 )
1579	index = index & (numpy.isfinite(data.data))
1580	fn = data.data[index]
1581	theory_data = self.page_finder[page_id].get_theory_data()
1582	gn = theory_data.data[index]
1583	en = data.err_data[index]
1584	else:
1585	# 1 d theory from model_thread is only in the range of index
1586	if index == None:
1587	index = numpy.ones(len(data.y), ntype=bool)
1588	if data.dy == None or data.dy == []:
1589	dy = numpy.ones(len(data.y))
1590	else:
1591	## Set consitently w/AbstractFitengine:
1592	# But this should be corrected later.
1593	dy = deepcopy(data.dy)
1594	dy[dy==0] = 1
1595	fn = data.y[index]
1596	theory_data = self.page_finder[page_id].get_theory_data()
1597	gn = theory_data.y
1598	en = dy[index]
1599
1600	# residual
1601	res = (fn - gn) / en
1602	residuals = res[numpy.isfinite(res)]
1603	# get chisqr only w/finite
1604	chisqr = numpy.average(residuals * residuals)
1605
1606	self._plot_residuals(page_id, data, index)
1607	return chisqr
1608
1609
1610
1611	def _plot_residuals(self, page_id, data=None, index=None):
1612	"""
1613	Plot the residuals
1614
1615	:param data: data
1616	:param index: index array (bool)
1617	: Note: this is different from the residuals in cal_chisqr()
1618	"""
1619	if data == None:
1620	return
1621
1622	# Get data: data I, theory I, and data dI in order
1623	if data.__class__.__name__ == "Data2D":
1624	# build residuals
1625	#print data
1626	residuals = Data2D()
1627	#residuals.copy_from_datainfo(data)
1628	# Not for trunk the line below, instead use the line above
1629	data.clone_without_data(len(data.data), residuals)
1630	residuals.data = None
1631	fn = data.data#[index]
1632	theory_data = self.page_finder[page_id].get_theory_data()
1633	gn = theory_data.data#[index]
1634	en = data.err_data#[index]
1635	residuals.data = (fn - gn) / en
1636	residuals.qx_data = data.qx_data#[index]
1637	residuals.qy_data = data.qy_data #[index]
1638	residuals.q_data = data.q_data#[index]
1639	residuals.err_data = numpy.ones(len(residuals.data))#[index]
1640	residuals.xmin = min(residuals.qx_data)
1641	residuals.xmax = max(residuals.qx_data)
1642	residuals.ymin = min(residuals.qy_data)
1643	residuals.ymax = max(residuals.qy_data)
1644	residuals.q_data = data.q_data#[index]
1645	residuals.mask = data.mask
1646	residuals.scale = 'linear'
1647	#print "print data",residuals
1648	# check the lengths
1649	if len(residuals.data) != len(residuals.q_data):
1650	return
1651
1652	else:
1653	# 1 d theory from model_thread is only in the range of index
1654	if data.dy == None or data.dy == []:
1655	dy = numpy.ones(len(data.y))
1656	else:
1657	## Set consitently w/AbstractFitengine:
1658	## But this should be corrected later.
1659	dy = deepcopy(data.dy)
1660	dy[dy==0] = 1
1661	fn = data.y[index]
1662	theory_data = self.page_finder[page_id].get_theory_data()
1663	gn = theory_data.y
1664	en = dy[index]
1665	# build residuals
1666	residuals = Data1D()
1667	residuals.y = (fn - gn) / en
1668	residuals.x = data.x[index]
1669	residuals.dy = numpy.ones(len(residuals.y))
1670	residuals.dx = None
1671	residuals.dxl = None
1672	residuals.dxw = None
1673	residuals.ytransform = 'y'
1674	# For latter scale changes
1675	residuals.xaxis('\\rm{Q} ', 'A^{-1}')
1676	residuals.yaxis('\\rm{Residuals} ', 'normalized')
1677
1678	new_plot = residuals
1679	if data.id == None:
1680	data.id = data.name
1681	name = data.id
1682	new_plot.name = "Residuals for " + str(data.name)
1683	## allow to highlight data when plotted
1684	new_plot.interactive = True
1685	## when 2 data have the same id override the 1 st plotted
1686	new_plot.id = new_plot.name#name + " residuals"
1687	##group_id specify on which panel to plot this data
1688	new_plot.group_id = new_plot.id
1689	#new_plot.is_data = True
1690	##post data to plot
1691	title = new_plot.name
1692
1693	# plot data
1694	wx.PostEvent(self.parent, NewPlotEvent(plot=new_plot, title=title))
1695
1696	#def profile(fn, args, *kw):
1697	# import cProfile, pstats, os
1698	# global call_result
1699	# def call():
1700	# global call_result
1701	# call_result = fn(args, *kw)
1702	# cProfile.runctx('call()', dict(call=call), {}, 'profile.out')
1703	# stats = pstats.Stats('profile.out')
1704	# #stats.sort_stats('time')
1705	# stats.sort_stats('calls')
1706	# stats.print_stats()
1707	# os.unlink('profile.out')
1708	# return call_result
1709	if __name__ == "__main__":
1710	i = Plugin()
1711
1712
1713
1714

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SasView

source: sasview/sansview/perspectives/fitting/fitting.py @ 07c8630

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