fitting.py @ b770c3d

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 b770c3d was bdc25e2, checked in by Jae Cho <jhjcho@…>, 13 years ago
removed some sleep commands
Property mode set to `100644`
File size: 65.8 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
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, uid=None):
566	"""
567	perform fit
568
569	: param type: uid for single fit, None for simultaneous fit
570	"""
571	from sans.fit.Fitting import Fit
572	from .fit_thread import FitThread
573	from .console import ConsoleUpdate
574	## count the number of fitproblem schedule to fit
575	#if uid == None or self._fit_engine == "park":
576	fitproblem_count = 0
577	for value in self.page_finder.values():
578	if value.get_scheduled() == 1:
579	fitproblem_count += 1
580
581	## if simultaneous fit change automatically the engine to park
582	# scipy can not handle two thread running at the same time
583	if fitproblem_count > 1 or len(self.fit_thread_list)>0:
584	self._on_change_engine(engine='park')
585
586	self.fitproblem_count = fitproblem_count
587
588	fitter = Fit(self._fit_engine)
589	if self._fit_engine == "park":
590	engineType = "Simultaneous Fit"
591	else:
592	engineType = "Single Fit"
593
594	fproblemId = 0
595	self.current_pg = None
596	list_page_id = []
597	for page_id, value in self.page_finder.iteritems():
598	# For simulfit (uid give with None), do for-loop
599	# if uid is specified (singlefit), do it only on the page.
600	if engineType == "Single Fit":
601	if page_id != uid:
602	continue
603	try:
604	if value.get_scheduled() == 1:
605	#Get list of parameters name to fit
606	pars = []
607	templist = []
608
609	page = self.fit_panel.get_page_by_id(page_id)
610	templist = page.get_param_list()
611	# missing fit parameters
612	#if not templist:
613	# return
614	# have the list
615	for element in templist:
616	name = str(element[1])
617	pars.append(name)
618	#Set Engine (model , data) related to the page on
619	self._fit_helper(value=value, pars=pars,
620	fitter=fitter,
621	fitproblem_id=fproblemId,
622	title=engineType)
623	list_page_id.append(page_id)
624	fproblemId += 1
625	current_page_id = page_id
626	except:
627	#raise
628	msg= "%s error: %s" % (engineType, sys.exc_value)
629	wx.PostEvent(self.parent, StatusEvent(status=msg, info="error",
630	type="stop"))
631	return
632	## If a thread is already started, stop it
633	#if self.calc_fit!= None and self.calc_fit.isrunning():
634	# self.calc_fit.stop()
635	msg = "Fitting is in progress..."
636	wx.PostEvent( self.parent, StatusEvent(status=msg, type="progress" ))
637
638	#Handler used for park engine displayed message
639	handler = ConsoleUpdate(parent=self.parent,
640	manager=self,
641	improvement_delta=0.1)
642
643	#time.sleep(0.2)
644	## perform single fit
645
646	if fitproblem_count == 1:
647	calc_fit = FitThread(handler = handler,
648	fn=fitter,
649	pars=pars,
650	page_id=list_page_id,
651	completefn=self._single_fit_completed,
652	ftol=self.ftol)
653	else:
654	current_page_id = self.sim_page.uid
655	## Perform more than 1 fit at the time
656	calc_fit = FitThread(handler=handler,
657	fn=fitter,
658	page_id=list_page_id,
659	updatefn=handler.update_fit,
660	completefn=self._simul_fit_completed,
661	ftol=self.ftol)
662
663	self.fit_thread_list[current_page_id] = calc_fit
664	#time.sleep(0.3)
665
666	#self.ready_fit(calc_fit=calc_fit)
667	calc_fit.queue()
668
669	def ready_fit(self, calc_fit):
670	"""
671	Ready for another fit
672	"""
673	if self.fitproblem_count != None and self.fitproblem_count > 1:
674	calc_fit.ready(2.5)
675
676	else:
677	time.sleep(0.4)
678
679	def remove_plot(self, uid, theory=False):
680	"""
681	remove model plot when a fit page is closed
682	"""
683	fitproblem = self.page_finder[uid]
684	data = fitproblem.get_fit_data()
685	model = fitproblem.get_model()
686	plot_id = None
687	if model is not None:
688	plot_id = data.id + name
689	if theory:
690	plot_id = data.id
691	group_id = data.group_id
692	wx.PostEvent(self.parent, NewPlotEvent(id=plot_id,
693	group_id=group_id,
694	action='remove'))
695
696	def store_data(self, uid, data=None, caption=None):
697	"""
698	Helper to save page reference into the plug-in
699
700	:param page: page to store
701
702	"""
703	#create a fitproblem storing all link to data,model,page creation
704	if not uid in self.page_finder.keys():
705	self.page_finder[uid] = FitProblem()
706	self.page_finder[uid].set_fit_data(data)
707	self.page_finder[uid].set_fit_tab_caption(caption)
708
709	def on_add_new_page(self, event=None):
710	"""
711	ask fit panel to create a new empty page
712	"""
713	try:
714	page = self.fit_panel.add_empty_page()
715	page_caption = page.window_name
716	# add data associated to the page created
717	if page != None:
718	self.store_data(uid=page.uid, caption=page_caption,
719	data=page.get_data())
720	wx.PostEvent(self.parent, StatusEvent(status="Page Created",
721	info="info"))
722	else:
723	msg = "Page was already Created"
724	wx.PostEvent(self.parent, StatusEvent(status=msg,
725	info="warning"))
726	self.set_top_panel()
727	except:
728	raise
729	#msg = "Creating Fit page: %s"%sys.exc_value
730	#wx.PostEvent(self.parent, StatusEvent(status=msg, info="error"))
731
732
733	def add_fit_page(self, data):
734	"""
735	given a data, ask to the fitting panel to create a new fitting page,
736	get this page and store it into the page_finder of this plug-in
737	"""
738	page = self.fit_panel.set_data(data)
739	page_caption = page.window_name
740	#append Data1D to the panel containing its theory
741	#if theory already plotted
742	if page.uid in self.page_finder:
743	theory_data = self.page_finder[page.uid].get_theory_data()
744	if issubclass(data.__class__, Data2D):
745	data.group_id = wx.NewId()
746	if theory_data is not None:
747	group_id = str(page.uid) + " Model1D"
748	wx.PostEvent(self.parent,
749	NewPlotEvent(group_id=group_id,
750	action="delete"))
751	self.parent.update_data(prev_data=theory_data, new_data=data)
752	else:
753	if theory_data is not None:
754	group_id = str(page.uid) + " Model2D"
755	data.group_id = theory_data.group_id
756	wx.PostEvent(self.parent,
757	NewPlotEvent(group_id=group_id,
758	action="delete"))
759	self.parent.update_data(prev_data=theory_data, new_data=data)
760
761	self.store_data(uid=page.uid, data=data, caption=page.window_name)
762	if self.sim_page is not None:
763	self.sim_page.draw_page()
764	return page
765
766	def _onEVT_SLICER_PANEL(self, event):
767	"""
768	receive and event telling to update a panel with a name starting with
769	event.panel_name. this method update slicer panel for a given interactor.
770
771	:param event: contains type of slicer , paramaters for updating the panel
772	and panel_name to find the slicer 's panel concerned.
773	"""
774	for item in self.parent.panels:
775	if self.parent.panels[item].window_caption.startswith(event.panel_name):
776	self.parent.panels[item].set_slicer(event.type, event.params)
777
778	self.parent._mgr.Update()
779
780	def _closed_fitpage(self, event):
781	"""
782	request fitpanel to close a given page when its unique data is removed
783	from the plot. close fitpage only when the a loaded data is removed
784	"""
785	if event is None or event.data is None:
786	return
787	if hasattr(event.data,"is_data"):
788	if not event.data.is_data or \
789	event.data.__class__.__name__ == "Data1D":
790	self.fit_panel.close_page_with_data(event.data)
791
792	def _add_page_onmenu(self, name, fitproblem=None):
793	"""
794	Add name of a closed page of fitpanel in a menu
795	"""
796	list = self.menu1.GetMenuItems()
797	for item in list:
798	if name == item.GetItemLabel():
799	self.closed_page_dict[name][1] = fitproblem
800
801	if not name in self.closed_page_dict.keys():
802	# Post paramters
803	event_id = wx.NewId()
804	self.menu1.Append(event_id, name, "Show %s fit panel" % name)
805	self.closed_page_dict[name]= [event_id, fitproblem]
806	wx.EVT_MENU(self.parent, event_id, self._open_closed_page)
807
808	def _open_closed_page(self, event):
809	"""
810	reopen a closed page
811	"""
812	for name, value in self.closed_page_dict.iteritems():
813	if event.GetId() in value:
814	uid,fitproblem = value
815	if name !="Model":
816	data= fitproblem.get_fit_data()
817	page = self.fit_panel.add_fit_page(data=data, reset=True)
818	if fitproblem != None:
819	self.page_finder[uid] = fitproblem
820	if self.sim_page != None:
821	self.sim_page.draw_page()
822
823	else:
824	model = fitproblem
825	self.fit_panel.add_model_page(model=model, topmenu=True,
826	reset= True)
827	break
828
829	def _reset_schedule_problem(self, value=0, uid=None):
830	"""
831	unschedule or schedule all fitproblem to be fit
832	"""
833	# case that uid is not specified
834	if uid == None:
835	for page_id in self.page_finder.keys():
836	self.page_finder[page_id].schedule_tofit(value)
837	# when uid is given
838	else:
839	self.page_finder[uid].schedule_tofit(value)
840
841	def _fit_helper(self, pars, value, fitproblem_id,fitter, title="Single Fit " ):
842	"""
843	helper for fitting
844	"""
845	metadata = value.get_fit_data()
846	model = value.get_model()
847	smearer = value.get_smearer()
848	qmin, qmax = value.get_range()
849	self.fit_id = fitproblem_id
850	#Create list of parameters for fitting used
851	templist = []
852
853	try:
854	#Extra list of parameters and their constraints
855	listOfConstraint = []
856
857	param = value.get_model_param()
858	if len(param) > 0:
859	for item in param:
860	## check if constraint
861	if item[0] != None and item[1] != None:
862	listOfConstraint.append((item[0],item[1]))
863
864	#Do the single fit
865	fitter.set_model(model, self.fit_id,
866	pars, constraints=listOfConstraint)
867
868	fitter.set_data(data=metadata, id=self.fit_id,
869	smearer=smearer, qmin=qmin, qmax=qmax)
870
871	fitter.select_problem_for_fit(id=self.fit_id,
872	value=value.get_scheduled())
873	value.clear_model_param()
874	except:
875	raise
876	#msg = title + " error: %s" % sys.exc_value
877	#wx.PostEvent(self.parent, StatusEvent(status=msg, type="stop"))
878
879	def _onSelect(self,event):
880	"""
881	when Select data to fit a new page is created .Its reference is
882	added to self.page_finder
883	"""
884	self.panel = event.GetEventObject()
885	Plugin.on_perspective(self, event=event)
886	for plottable in self.panel.graph.plottables:
887	if plottable.__class__.__name__ in ["Data1D", "Theory1D"]:
888	data_id = self.panel.graph.selected_plottable
889	if plottable == self.panel.plots[data_id]:
890	data = plottable
891	self.add_fit_page(data=data)
892	return
893	else:
894	data = plottable
895	self.add_fit_page(data=data)
896	self.set_top_panel()
897
898	def update_fit(self, result=None, msg=""):
899	"""
900	"""
901	print "update_fit result", result
902
903	def _single_fit_completed(self, result, pars, page_id, elapsed=None):
904	"""
905	Display fit result on one page of the notebook.
906
907	:param result: result of fit
908	:param pars: list of names of parameters fitted
909	:param current_pg: the page where information will be displayed
910	:param qmin: the minimum value of x to replot the model
911	:param qmax: the maximum value of x to replot model
912
913	"""
914	del self.fit_thread_list[page_id[0]]
915	#time.sleep(0.2)
916	try:
917	if result == None:
918	self._update_fit_button(page_id)
919	msg= "Single Fitting did not converge!!!"
920	wx.PostEvent(self.parent,
921	StatusEvent(status=msg,
922	info="warning",
923	type="stop"))
924	return
925	if not numpy.isfinite(result.fitness) or \
926	numpy.any(result.pvec == None) or \
927	not numpy.all(numpy.isfinite(result.pvec)):
928	msg = "Single Fitting did not converge!!!"
929	wx.PostEvent(self.parent,
930	StatusEvent(status=msg,
931	info="warning",
932	type="stop"))
933	self._update_fit_button(page_id)
934	return
935
936	for uid in page_id:
937	value = self.page_finder[uid]
938	model = value.get_model()
939	page_id = uid
940
941	param_name = []
942	for name in pars:
943	param_name.append(name)
944
945	cpage = self.fit_panel.get_page_by_id(uid)
946
947	cpage.onsetValues(result.fitness,
948	param_name, result.pvec,result.stderr)
949	wx.CallAfter(cpage._on_fit_complete)
950	if result.stderr == None:
951	msg = "Fit Abort: "
952	else:
953	msg = "Fitting: "
954	msg += "Completed!!!"
955	wx.PostEvent(self.parent, StatusEvent(status=msg))
956	return
957	except ValueError:
958	self._update_fit_button(page_id)
959	msg = "Single Fitting did not converge!!!"
960	wx.PostEvent(self.parent, StatusEvent(status=msg, info="error",
961	type="stop"))
962	return
963	except:
964	self._update_fit_button(page_id)
965	msg = "Single Fit completed but Following"
966	msg += " error occurred:%s" % sys.exc_value
967	wx.PostEvent(self.parent, StatusEvent(status=msg, info="error",
968	type="stop"))
969	raise
970	return
971
972	def _simul_fit_completed(self, result, page_id,pars=None, elapsed=None):
973	"""
974	Parameter estimation completed,
975	display the results to the user
976
977	:param alpha: estimated best alpha
978	:param elapsed: computation time
979
980	"""
981	self.fit_thread_list = {}
982	if page_id is None:
983	page_id = []
984	## fit more than 1 model at the same time
985	#time.sleep(0.2)
986	try:
987	msg = ""
988	if result == None:
989	self._update_fit_button(page_id)
990	msg= "Complex Fitting did not converge!!!"
991	wx.PostEvent(self.parent, StatusEvent(status=msg,
992	type="stop"))
993	return
994	if not numpy.isfinite(result.fitness) or \
995	numpy.any(result.pvec == None) or not \
996	numpy.all(numpy.isfinite(result.pvec)):
997	self._update_fit_button(page_id)
998	msg= "Simultaneous Fitting did not converge!!!"
999	wx.PostEvent(self.parent, StatusEvent(status=msg,type="stop"))
1000	return
1001
1002	for uid in page_id:
1003	value = self.page_finder[uid]
1004	model = value.get_model()
1005	data = value.get_fit_data()
1006	small_param_name = []
1007	small_out = []
1008	small_cov = []
1009	#Separate result in to data corresponding to each page
1010	for p in result.parameters:
1011	model_name, param_name = self.split_string(p.name)
1012	if model.name == model_name:
1013	p_name= model.name+"."+param_name
1014	if p.name == p_name:
1015	if p.value != None and numpy.isfinite(p.value):
1016	small_out.append(p.value)
1017	small_param_name.append(param_name)
1018	small_cov.append(p.stderr)
1019	# Display result on each page
1020	cpage = self.fit_panel.get_page_by_id(uid)
1021	cpage.onsetValues(result.fitness,
1022	small_param_name,
1023	small_out,small_cov)
1024	wx.CallAfter(cpage._on_fit_complete)
1025	msg = "Fit completed!"
1026	wx.PostEvent(self.parent, StatusEvent(status=msg))
1027	except Exception:
1028	self._update_fit_button(page_id)
1029	msg = "Complex Fitting did not converge!!!"
1030	wx.PostEvent(self.parent, StatusEvent(status=msg, info="error",
1031	type="stop"))
1032	return
1033
1034	except:
1035	self._update_fit_button(page_id)
1036	msg = "Simultaneous Fit completed"
1037	msg += " but Following error occurred:%s" % sys.exc_value
1038	wx.PostEvent(self.parent, StatusEvent(status=msg, type="stop"))
1039
1040	def _update_fit_button(self, page_id):
1041	"""
1042	Update Fit button when fit stopped
1043
1044	: parameter page_id: fitpage where the button is
1045	"""
1046	if page_id.__class__.__name__ != 'list':
1047	page_id = [page_id]
1048	for uid in page_id:
1049	page = self.fit_panel.get_page_by_id(uid)
1050	page._on_fit_complete()
1051
1052	def _on_show_panel(self, event):
1053	"""
1054	"""
1055	pass
1056
1057	def _onset_engine_park(self,event):
1058	"""
1059	set engine to park
1060	"""
1061	self._on_change_engine('park')
1062
1063	def _onset_engine_scipy(self,event):
1064	"""
1065	set engine to scipy
1066	"""
1067	self._on_change_engine('scipy')
1068
1069	def _on_slicer_event(self, event):
1070	"""
1071	Receive a panel as event and send it to guiframe
1072
1073	:param event: event containing a panel
1074
1075	"""
1076	if event.panel is not None:
1077	new_panel = event.panel
1078	self.slicer_panels.append(event.panel)
1079	# Set group ID if available
1080	event_id = self.parent.popup_panel(new_panel)
1081	#self.menu3.Append(event_id, new_panel.window_caption,
1082	# "Show %s plot panel" % new_panel.window_caption)
1083	# Set id to allow us to reference the panel later
1084
1085	new_panel.uid = event_id
1086	self.mypanels.append(new_panel)
1087
1088	def _onclearslicer(self, event):
1089	"""
1090	Clear the boxslicer when close the panel associate with this slicer
1091	"""
1092	name =event.GetPane().caption
1093
1094	for panel in self.slicer_panels:
1095	if panel.window_caption==name:
1096
1097	for item in self.parent.panels:
1098	if hasattr(self.parent.panels[item],"uid"):
1099	if self.parent.panels[item].uid ==panel.base.uid:
1100	self.parent.panels[item].onClearSlicer(event)
1101	self.parent._mgr.Update()
1102	break
1103	break
1104
1105	def _return_engine_type(self):
1106	"""
1107	return the current type of engine
1108	"""
1109	return self._fit_engine
1110
1111
1112	def _on_change_engine(self, engine='park'):
1113	"""
1114	Allow to select the type of engine to perform fit
1115
1116	:param engine: the key work of the engine
1117
1118	"""
1119	## saving fit engine name
1120	self._fit_engine = engine
1121	## change menu item state
1122	if engine=="park":
1123	self.menu1.FindItemById(self.park_id).Check(True)
1124	self.menu1.FindItemById(self.scipy_id).Check(False)
1125	else:
1126	self.menu1.FindItemById(self.park_id).Check(False)
1127	self.menu1.FindItemById(self.scipy_id).Check(True)
1128	## post a message to status bar
1129	msg = "Engine set to: %s" % self._fit_engine
1130	wx.PostEvent(self.parent,
1131	StatusEvent(status=msg))
1132	## send the current engine type to fitpanel
1133	self.fit_panel._on_engine_change(name=self._fit_engine)
1134
1135
1136	def _on_model_panel(self, evt):
1137	"""
1138	react to model selection on any combo box or model menu.plot the model
1139
1140	:param evt: wx.combobox event
1141
1142	"""
1143	model = evt.model
1144	uid = evt.uid
1145	qmin = evt.qmin
1146	qmax = evt.qmax
1147	smearer = evt.smearer
1148
1149	if model == None:
1150	return
1151
1152	if self.page_finder[uid].get_model() is None:
1153	model.name = "M" + str(self.index_model)
1154	self.index_model += 1
1155	else:
1156	model.name = self.page_finder[uid].get_model().name
1157	# save the name containing the data name with the appropriate model
1158	self.page_finder[uid].set_model(model)
1159	self.page_finder[uid].set_range(qmin=qmin, qmax=qmax)
1160	if self.sim_page is not None:
1161	self.sim_page.draw_page()
1162
1163	def _update1D(self,x, output):
1164	"""
1165	Update the output of plotting model 1D
1166	"""
1167	msg = "Plot updating ... "
1168	wx.PostEvent(self.parent, StatusEvent(status=msg,type="update"))
1169	#self.ready_fit()
1170
1171
1172	def _fill_default_model2D(self, theory, page_id, qmax,qstep, qmin=None):
1173	"""
1174	fill Data2D with default value
1175
1176	:param theory: Data2D to fill
1177
1178	"""
1179	from DataLoader.data_info import Detector, Source
1180
1181	detector = Detector()
1182	theory.detector.append(detector)
1183	theory.source= Source()
1184
1185	## Default values
1186	theory.detector[0].distance= 8000 # mm
1187	theory.source.wavelength= 6 # A
1188	theory.detector[0].pixel_size.x= 5 # mm
1189	theory.detector[0].pixel_size.y= 5 # mm
1190
1191	theory.detector[0].beam_center.x= qmax
1192	theory.detector[0].beam_center.y= qmax
1193
1194	## create x_bins and y_bins of the model 2D
1195	pixel_width_x = theory.detector[0].pixel_size.x
1196	pixel_width_y = theory.detector[0].pixel_size.y
1197	center_x = theory.detector[0].beam_center.x/pixel_width_x
1198	center_y = theory.detector[0].beam_center.y/pixel_width_y
1199
1200	# theory default: assume the beam
1201	#center is located at the center of sqr detector
1202	xmax = qmax
1203	xmin = -qmax
1204	ymax = qmax
1205	ymin = -qmax
1206
1207	x= numpy.linspace(start= -1*qmax,
1208	stop=qmax,
1209	num=qstep,
1210	endpoint=True)
1211	y = numpy.linspace(start=-1*qmax,
1212	stop= qmax,
1213	num= qstep,
1214	endpoint=True)
1215
1216	## use data info instead
1217	new_x = numpy.tile(x, (len(y),1))
1218	new_y = numpy.tile(y, (len(x),1))
1219	new_y = new_y.swapaxes(0,1)
1220
1221	# all data reuire now in 1d array
1222	qx_data = new_x.flatten()
1223	qy_data = new_y.flatten()
1224
1225	q_data = numpy.sqrt(qx_dataqx_data+qy_dataqy_data)
1226	# set all True (standing for unmasked) as default
1227	mask = numpy.ones(len(qx_data), dtype = bool)
1228
1229	# calculate the range of qx and qy: this way,
1230	# it is a little more independent
1231	x_size = xmax- xmin
1232	y_size = ymax -ymin
1233
1234	# store x and y bin centers in q space
1235	x_bins = x
1236	y_bins = y
1237	# bin size: x- & y-directions
1238	xstep = x_size/len(x_bins-1)
1239	ystep = y_size/len(y_bins-1)
1240
1241	#theory.data = numpy.zeros(len(mask))
1242	theory.err_data = numpy.ones(len(mask))
1243	theory.qx_data = qx_data
1244	theory.qy_data = qy_data
1245	theory.q_data = q_data
1246	theory.mask = mask
1247	theory.x_bins = x_bins
1248	theory.y_bins = y_bins
1249
1250	# max and min taking account of the bin sizes
1251	theory.xmin = xmin
1252	theory.xmax = xmax
1253	theory.ymin = ymin
1254	theory.ymax = ymax
1255	theory.group_id = str(page_id) + " Model2D"
1256	theory.id = str(page_id) + " Model2D"
1257
1258	def _complete1D(self, x,y, page_id, elapsed,index,model,
1259	toggle_mode_on=False,state=None,
1260	data=None, update_chisqr=True):
1261	"""
1262	Complete plotting 1D data
1263	"""
1264	try:
1265	new_plot = Data1D(x=x, y=y)
1266	new_plot.is_data = False
1267	new_plot.symbol = GUIFRAME_ID.CURVE_SYMBOL_NUM
1268	if data != None:
1269	_xaxis, _xunit = data.get_xaxis()
1270	_yaxis, _yunit = data.get_yaxis()
1271	new_plot.title = data.name
1272	#if the theory is already plotted use the same group id
1273	#to replot
1274	if page_id in self.page_finder:
1275	theory_data = self.page_finder[page_id].get_theory_data()
1276	if theory_data is not None:
1277	data.group_id = theory_data.group_id
1278	#data is plotted before the theory, then take its group_id
1279	#assign to the new theory
1280	new_plot.group_id = data.group_id
1281
1282	else:
1283	_xaxis, _xunit = "\\rm{Q}", 'A^{-1}'
1284	_yaxis, _yunit = "\\rm{Intensity} ", "cm^{-1}"
1285	new_plot.title = "Analytical model 1D "
1286	#find a group id to plot theory without data
1287	new_plot.group_id = str(page_id) + " Model1D"
1288	new_plot.id = str(page_id) + " Model1D"
1289
1290	#find if this theory was already plotted and replace that plot given
1291	#the same id
1292
1293	theory_data = self.page_finder[page_id].get_theory_data()
1294	if theory_data is not None:
1295	new_plot.id = theory_data.id
1296
1297	new_plot.name = model.name + " ["+ str(model.__class__.__name__)+ "]"
1298	new_plot.xaxis(_xaxis, _xunit)
1299	new_plot.yaxis(_yaxis, _yunit)
1300	if toggle_mode_on:
1301	new_plot.id = str(page_id) + " Model"
1302	wx.PostEvent(self.parent,
1303	NewPlotEvent(group_id=str(page_id) + " Model2D",
1304	action="Hide"))
1305
1306	self.page_finder[page_id].set_theory_data(new_plot)
1307	if data is None:
1308	data_id = None
1309	else:
1310	data_id = data.id
1311
1312	self.parent.update_theory(data_id=data_id,
1313	theory=new_plot,
1314	state=state)
1315
1316	current_pg = self.fit_panel.get_page_by_id(page_id)
1317	title = new_plot.title
1318
1319	wx.PostEvent(self.parent, NewPlotEvent(plot=new_plot,
1320	title= str(title)))
1321
1322	self.page_finder[page_id].set_theory_data(new_plot)
1323
1324	if update_chisqr:
1325	wx.PostEvent(current_pg,
1326	Chi2UpdateEvent(output=self._cal_chisqr(data=data,
1327	page_id=page_id,
1328	index=index)))
1329	else:
1330	self._plot_residuals(page_id, data, index)
1331
1332	msg = "Computation completed!"
1333	wx.PostEvent( self.parent, StatusEvent(status=msg, type="stop" ))
1334
1335	#self.current_pg.state.theory_data = deepcopy(self.theory_data)
1336	except:
1337	raise
1338	#msg = " Error occurred when drawing %s Model 1D: " % new_plot.name
1339	#msg += " %s" % sys.exc_value
1340	#wx.PostEvent(self.parent, StatusEvent(status=msg, type="stop"))
1341
1342	def _update2D(self, output,time=None):
1343	"""
1344	Update the output of plotting model
1345	"""
1346	wx.PostEvent(self.parent, StatusEvent(status="Plot \
1347	#updating ... ", type="update"))
1348	#self.ready_fit()
1349
1350	def _complete2D(self, image, data, model, page_id, elapsed, index, qmin,
1351	qmax, toggle_mode_on=False,state=None,qstep=DEFAULT_NPTS,
1352	update_chisqr=True):
1353	"""
1354	Complete get the result of modelthread and create model 2D
1355	that can be plot.
1356	"""
1357	err_image = numpy.zeros(numpy.shape(image))
1358
1359	new_plot= Data2D(image=image, err_image=err_image)
1360	new_plot.name = model.name
1361	new_plot.title = "Analytical model 2D "
1362	if data is None:
1363	self._fill_default_model2D(theory=new_plot,
1364	qmax=qmax,
1365	page_id=page_id,
1366	qstep=qstep,
1367	qmin= qmin)
1368
1369	else:
1370	new_plot.id = str(page_id) + " Model2D"
1371	new_plot.group_id = str(page_id) + " Model2D"
1372	new_plot.x_bins = data.x_bins
1373	new_plot.y_bins = data.y_bins
1374	new_plot.detector = data.detector
1375	new_plot.source = data.source
1376	new_plot.is_data = False
1377	new_plot.qx_data = data.qx_data
1378	new_plot.qy_data = data.qy_data
1379	new_plot.q_data = data.q_data
1380	#numpy.zeros(len(data.err_data))#data.err_data
1381	new_plot.err_data = err_image
1382	new_plot.mask = data.mask
1383	## plot boundaries
1384	new_plot.ymin = data.ymin
1385	new_plot.ymax = data.ymax
1386	new_plot.xmin = data.xmin
1387	new_plot.xmax = data.xmax
1388	title = data.title
1389	if len(title) > 1:
1390	new_plot.title = "Model2D for " + data.name
1391	new_plot.is_data = False
1392	new_plot.name = model.name + " ["+ str(model.__class__.__name__)+ "]"
1393
1394	theory_data = deepcopy(new_plot)
1395	theory_data.name = "Unknown"
1396	if toggle_mode_on:
1397	new_plot.id = str(page_id) + " Model"
1398	wx.PostEvent(self.parent,
1399	NewPlotEvent(group_id=str(page_id) + " Model1D",
1400	action="Hide"))
1401
1402	self.page_finder[page_id].set_theory_data(new_plot)
1403	if data is None:
1404	data_id = None
1405	else:
1406	data_id = data.id
1407	self.parent.update_theory(data_id=data_id,
1408	theory=new_plot,
1409	state=state)
1410	current_pg = self.fit_panel.get_page_by_id(page_id)
1411	title = new_plot.title
1412
1413	wx.PostEvent(self.parent, NewPlotEvent(plot=new_plot,
1414	title=title))
1415	self.page_finder[page_id].set_theory_data(new_plot)
1416	# Chisqr in fitpage
1417	if update_chisqr:
1418	wx.PostEvent(current_pg,
1419	Chi2UpdateEvent(output=\
1420	self._cal_chisqr(data=data,
1421	page_id=page_id,
1422	index=index)))
1423	else:
1424	self._plot_residuals(page_id, data, index)
1425	msg = "Computation completed!"
1426	wx.PostEvent(self.parent, StatusEvent(status=msg, type="stop"))
1427
1428	def _draw_model2D(self, model, page_id, data=None, smearer=None,
1429	description=None, enable2D=False,
1430	state=None,
1431	toggle_mode_on=False,
1432	qmin=DEFAULT_QMIN, qmax=DEFAULT_QMAX,
1433	qstep=DEFAULT_NPTS,
1434	update_chisqr=True):
1435	"""
1436	draw model in 2D
1437
1438	:param model: instance of the model to draw
1439	:param description: the description of the model
1440	:param enable2D: when True allows to draw model 2D
1441	:param qmin: the minimum value to draw model 2D
1442	:param qmax: the maximum value to draw model 2D
1443	:param qstep: the number of division of Qx and Qy of the model to draw
1444
1445	"""
1446	x= numpy.linspace(start=-1*qmax,
1447	stop=qmax,
1448	num=qstep,
1449	endpoint=True)
1450	y = numpy.linspace(start= -1*qmax,
1451	stop=qmax,
1452	num=qstep,
1453	endpoint=True)
1454	if model is None:
1455	msg = "Panel with ID: %s does not contained model" % str(page_id)
1456	raise ValueError, msg
1457	## use data info instead
1458	if data is not None:
1459	## check if data2D to plot
1460	if hasattr(data, "x_bins"):
1461	enable2D = True
1462	x = data.x_bins
1463	y = data.y_bins
1464
1465	if not enable2D:
1466	return None, None
1467	try:
1468	from model_thread import Calc2D
1469	## If a thread is already started, stop it
1470	if (self.calc_2D is not None) and self.calc_2D.isrunning():
1471	self.calc_2D.stop()
1472	self.calc_2D = Calc2D(x=x,
1473	y=y,
1474	model=model,
1475	data=data,
1476	page_id=page_id,
1477	smearer=smearer,
1478	qmin=qmin,
1479	qmax=qmax,
1480	qstep=qstep,
1481	toggle_mode_on=toggle_mode_on,
1482	state=state,
1483	completefn=self._complete2D,
1484	#updatefn= self._update2D,
1485	update_chisqr=update_chisqr)
1486
1487	self.calc_2D.queue()
1488
1489	except:
1490	raise
1491	#msg = " Error occurred when drawing %s Model 2D: " % model.name
1492	#msg += " %s" % sys.exc_value
1493	#wx.PostEvent(self.parent, StatusEvent(status=msg))
1494
1495	def _draw_model1D(self, model, page_id, data=None, smearer=None,
1496	qmin=DEFAULT_QMIN, qmax=DEFAULT_QMAX,
1497	state=None,
1498	toggle_mode_on=False,
1499	qstep=DEFAULT_NPTS, update_chisqr=True,
1500	enable1D=True):
1501	"""
1502	Draw model 1D from loaded data1D
1503
1504	:param data: loaded data
1505	:param model: the model to plot
1506
1507	"""
1508	x= numpy.linspace(start=qmin,
1509	stop=qmax,
1510	num=qstep,
1511	endpoint=True
1512	)
1513	if data is not None:
1514	## check for data2D
1515	if hasattr(data,"x_bins"):
1516	return
1517	x = data.x
1518	if qmin == None :
1519	qmin == DEFAULT_QMIN
1520
1521	if qmax == None:
1522	qmax == DEFAULT_QMAX
1523	if not enable1D:
1524	return
1525	try:
1526	from model_thread import Calc1D
1527	## If a thread is already started, stop it
1528	if (self.calc_1D is not None) and self.calc_1D.isrunning():
1529	self.calc_1D.stop()
1530	self.calc_1D = Calc1D(x=x,
1531	data=data,
1532	model=model,
1533	page_id=page_id,
1534	qmin=qmin,
1535	qmax=qmax,
1536	smearer=smearer,
1537	state=state,
1538	toggle_mode_on=toggle_mode_on,
1539	completefn=self._complete1D,
1540	#updatefn = self._update1D,
1541	update_chisqr=update_chisqr)
1542
1543	self.calc_1D.queue()
1544
1545	except:
1546	msg = " Error occurred when drawing %s Model 1D: " % model.name
1547	msg += " %s" % sys.exc_value
1548	wx.PostEvent(self.parent, StatusEvent(status=msg))
1549
1550	def _cal_chisqr(self, page_id, data=None, index=None):
1551	"""
1552	Get handy Chisqr using the output from draw1D and 2D,
1553	instead of calling expansive CalcChisqr in guithread
1554	"""
1555	# default chisqr
1556	chisqr = None
1557
1558	# return None if data == None
1559	if data == None: return chisqr
1560
1561	# Get data: data I, theory I, and data dI in order
1562	if data.__class__.__name__ == "Data2D":
1563	if index == None:
1564	index = numpy.ones(len(data.data),ntype=bool)
1565	# get rid of zero error points
1566	index = index & (data.err_data != 0 )
1567	index = index & (numpy.isfinite(data.data))
1568	fn = data.data[index]
1569	theory_data = self.page_finder[page_id].get_theory_data()
1570	gn = theory_data.data[index]
1571	en = data.err_data[index]
1572	else:
1573	# 1 d theory from model_thread is only in the range of index
1574	if index == None:
1575	index = numpy.ones(len(data.y), ntype=bool)
1576	if data.dy == None or data.dy == []:
1577	dy = numpy.ones(len(data.y))
1578	else:
1579	## Set consitently w/AbstractFitengine:
1580	# But this should be corrected later.
1581	dy = deepcopy(data.dy)
1582	dy[dy==0] = 1
1583	fn = data.y[index]
1584	theory_data = self.page_finder[page_id].get_theory_data()
1585	gn = theory_data.y
1586	en = dy[index]
1587
1588	# residual
1589	res = (fn - gn) / en
1590	residuals = res[numpy.isfinite(res)]
1591	# get chisqr only w/finite
1592	chisqr = numpy.average(residuals * residuals)
1593
1594	self._plot_residuals(page_id, data, index)
1595	return chisqr
1596
1597
1598
1599	def _plot_residuals(self, page_id, data=None, index=None):
1600	"""
1601	Plot the residuals
1602
1603	:param data: data
1604	:param index: index array (bool)
1605	: Note: this is different from the residuals in cal_chisqr()
1606	"""
1607	if data == None:
1608	return
1609
1610	# Get data: data I, theory I, and data dI in order
1611	if data.__class__.__name__ == "Data2D":
1612	# build residuals
1613	#print data
1614	residuals = Data2D()
1615	#residuals.copy_from_datainfo(data)
1616	# Not for trunk the line below, instead use the line above
1617	data.clone_without_data(len(data.data), residuals)
1618	residuals.data = None
1619	fn = data.data#[index]
1620	theory_data = self.page_finder[page_id].get_theory_data()
1621	gn = theory_data.data#[index]
1622	en = data.err_data#[index]
1623	residuals.data = (fn - gn) / en
1624	residuals.qx_data = data.qx_data#[index]
1625	residuals.qy_data = data.qy_data #[index]
1626	residuals.q_data = data.q_data#[index]
1627	residuals.err_data = numpy.ones(len(residuals.data))#[index]
1628	residuals.xmin = min(residuals.qx_data)
1629	residuals.xmax = max(residuals.qx_data)
1630	residuals.ymin = min(residuals.qy_data)
1631	residuals.ymax = max(residuals.qy_data)
1632	residuals.q_data = data.q_data#[index]
1633	residuals.mask = data.mask
1634	residuals.scale = 'linear'
1635	#print "print data",residuals
1636	# check the lengths
1637	if len(residuals.data) != len(residuals.q_data):
1638	return
1639
1640	else:
1641	# 1 d theory from model_thread is only in the range of index
1642	if data.dy == None or data.dy == []:
1643	dy = numpy.ones(len(data.y))
1644	else:
1645	## Set consitently w/AbstractFitengine:
1646	## But this should be corrected later.
1647	dy = deepcopy(data.dy)
1648	dy[dy==0] = 1
1649	fn = data.y[index]
1650	theory_data = self.page_finder[page_id].get_theory_data()
1651	gn = theory_data.y
1652	en = dy[index]
1653	# build residuals
1654	residuals = Data1D()
1655	residuals.y = (fn - gn) / en
1656	residuals.x = data.x[index]
1657	residuals.dy = numpy.ones(len(residuals.y))
1658	residuals.dx = None
1659	residuals.dxl = None
1660	residuals.dxw = None
1661	residuals.ytransform = 'y'
1662	# For latter scale changes
1663	residuals.xaxis('\\rm{Q} ', 'A^{-1}')
1664	residuals.yaxis('\\rm{Residuals} ', 'normalized')
1665
1666	new_plot = residuals
1667	if data.id == None:
1668	data.id = data.name
1669	name = data.id
1670	new_plot.name = "Residuals for " + str(data.name)
1671	## allow to highlight data when plotted
1672	new_plot.interactive = True
1673	## when 2 data have the same id override the 1 st plotted
1674	new_plot.id = new_plot.name#name + " residuals"
1675	##group_id specify on which panel to plot this data
1676	new_plot.group_id = new_plot.id
1677	#new_plot.is_data = True
1678	##post data to plot
1679	title = new_plot.name
1680
1681	# plot data
1682	wx.PostEvent(self.parent, NewPlotEvent(plot=new_plot, title=title))
1683
1684	#def profile(fn, args, *kw):
1685	# import cProfile, pstats, os
1686	# global call_result
1687	# def call():
1688	# global call_result
1689	# call_result = fn(args, *kw)
1690	# cProfile.runctx('call()', dict(call=call), {}, 'profile.out')
1691	# stats = pstats.Stats('profile.out')
1692	# #stats.sort_stats('time')
1693	# stats.sort_stats('calls')
1694	# stats.print_stats()
1695	# os.unlink('profile.out')
1696	# return call_result
1697	if __name__ == "__main__":
1698	i = Plugin()
1699
1700
1701
1702

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SasView

source: sasview/sansview/perspectives/fitting/fitting.py @ b770c3d

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