fitpage.py @ e7430b6

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 e7430b6 was 49b7efa, checked in by Gervaise Alina <gervyh@…>, 16 years ago
working on model window display
Property mode set to `100644`
File size: 22.9 KB

Line
1	import sys
2	import wx
3	import wx.lib
4	import numpy
5	import copy
6
7	from sans.guicomm.events import StatusEvent
8	(ModelEventbox, EVT_MODEL_BOX) = wx.lib.newevent.NewEvent()
9	_BOX_WIDTH = 80
10
11	def format_number(value, high=False):
12	"""
13	Return a float in a standardized, human-readable formatted string
14	"""
15	try:
16	value = float(value)
17	except:
18	print "returning 0"
19	return "0"
20
21	if high:
22	return "%-6.4g" % value
23	else:
24	return "%-5.3g" % value
25
26
27	class FitPage(wx.Panel):
28	"""
29	FitPanel class contains fields allowing to display results when
30	fitting a model and one data
31	@note: For Fit to be performed the user should check at least one parameter
32	on fit Panel window.
33
34	"""
35	## Internal name for the AUI manager
36	window_name = "Fit page"
37	## Title to appear on top of the window
38	window_caption = "Fit Page"
39
40
41	def __init__(self, parent, args, *kwargs):
42	wx.Panel.__init__(self, parent, args, *kwargs)
43	"""
44	Initialization of the Panel
45	"""
46	self.manager = None
47	self.parent = parent
48	self.event_owner=None
49	#panel interface
50	self.vbox = wx.BoxSizer(wx.VERTICAL)
51	self.sizer4 = wx.GridBagSizer(5,5)
52	self.sizer3 = wx.GridBagSizer(5,5)
53	self.sizer2 = wx.GridBagSizer(5,5)
54	self.sizer1 = wx.GridBagSizer(5,5)
55	self.DataSource = wx.TextCtrl(self, -1,size=(_BOX_WIDTH,20))
56	self.DataSource.SetToolTipString("name of data to fit")
57	self.modelbox = wx.ComboBox(self, -1)
58	id = wx.NewId()
59	self.btFit =wx.Button(self,id,'Fit')
60	self.btFit.Bind(wx.EVT_BUTTON, self.onFit,id=id)
61	self.btFit.SetToolTipString("Perform fit.")
62	self.vbox.Add(self.sizer3)
63	self.vbox.Add(self.sizer2)
64	self.vbox.Add(self.sizer4)
65	self.vbox.Add(self.sizer1)
66
67	ix = 0
68	iy = 1
69	self.sizer3.Add(wx.StaticText(self, -1, 'Data Source'),(iy,ix),\
70	(1,1), wx.LEFT\|wx.EXPAND\|wx.ADJUST_MINSIZE, 15)
71	ix += 1
72	self.sizer3.Add(self.DataSource,(iy,ix),(1,1), wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
73	ix += 1
74	self.sizer3.Add((20,20),(iy,ix),(1,1),wx.RIGHT\|wx.EXPAND\|wx.ADJUST_MINSIZE,0)
75	ix = 0
76	iy += 1
77	self.sizer3.Add(wx.StaticText(self,-1,'Model'),(iy,ix),(1,1)\
78	, wx.LEFT\|wx.EXPAND\|wx.ADJUST_MINSIZE, 15)
79	ix += 1
80	self.sizer3.Add(self.modelbox,(iy,ix),(1,1), wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
81	ix = 1
82	iy = 1
83	self.text4_1 = wx.StaticText(self, -1, 'Min')
84	self.sizer4.Add(self.text4_1,(iy, ix),(1,1),\
85	wx.LEFT\|wx.EXPAND\|wx.ADJUST_MINSIZE, 15)
86	self.text4_1.Hide()
87	ix += 2
88	self.text4_2 = wx.StaticText(self, -1, 'Max')
89	self.sizer4.Add(self.text4_2,(iy, ix),(1,1),\
90	wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
91	self.text4_2.Hide()
92	ix = 0
93	iy += 1
94	#set maximum range for x in linear scale
95	self.text4_3 = wx.StaticText(self, -1, 'Maximum Data\n Range (Linear)', style=wx.ALIGN_LEFT)
96	self.sizer4.Add(self.text4_3,(iy,ix),(1,1),\
97	wx.LEFT\|wx.EXPAND\|wx.ADJUST_MINSIZE, 15)
98	self.text4_3.Hide()
99	ix += 1
100	self.xmin = wx.TextCtrl(self, -1,size=(_BOX_WIDTH,20))
101	self.xmin.SetToolTipString("Minimun value of x in linear scale.")
102	self.sizer4.Add(self.xmin,(iy, ix),(1,1), wx.LEFT\|wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
103	self.xmin.Bind(wx.EVT_KILL_FOCUS, self._onTextEnter)
104	self.xmin.Hide()
105	ix += 2
106	self.xmax = wx.TextCtrl(self, -1,size=(_BOX_WIDTH,20))
107	self.xmax.SetToolTipString("Maximum value of x in linear scale.")
108	self.sizer4.Add(self.xmax,(iy,ix),(1,1), wx.LEFT\|wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
109	self.xmax.Bind(wx.EVT_KILL_FOCUS, self._onTextEnter)
110	self.xmax.Hide()
111	#Set chisqr result into TextCtrl
112	ix = 0
113	iy = 1
114	self.text1_1 = wx.StaticText(self, -1, 'Chi2/dof', style=wx.ALIGN_LEFT)
115	self.sizer1.Add(self.text1_1,(iy,ix),(1,1),\
116	wx.LEFT\|wx.EXPAND\|wx.ADJUST_MINSIZE, 15)
117	ix += 1
118	self.tcChi = wx.TextCtrl(self, -1,size=(_BOX_WIDTH,20))
119	self.tcChi.SetToolTipString("Chi^2 over degrees of freedom.")
120	self.sizer1.Add(self.tcChi,(iy,ix),(1,1), wx.LEFT\|wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
121	ix +=2
122	self.sizer1.Add(self.btFit,(iy,ix),(1,1), wx.LEFT\|wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
123
124	# contains link between model ,all its parameters, and panel organization
125	self.parameters=[]
126	#contains link between a model and selected parameters to fit
127	self.param_toFit=[]
128	# model on which the fit would be performed
129	self.model=None
130	# preview selected model name
131	self.prevmodel_name=None
132	# flag to check if the user has selected a new model in the combox box
133	self.model_hasChanged=False
134	#flag to check if the user has selected a new data
135	self.data_hasChanged=False
136	#dictionary of model name and model class
137	self.model_list_box={}
138	# Data1D to make a deep comparison between 2 Data1D for checking data
139	#change
140	from sans.guitools.plottables import Data1D
141	self.prevData = Data1D(x=[], y=[],dx=None, dy=None)
142	self.prevData.name= None
143
144	self.data=None
145	self.vbox.Layout()
146	self.vbox.Fit(self)
147	self.SetSizer(self.vbox)
148	self.Centre()
149
150
151	def set_owner(self,owner):
152	"""
153	set owner of fitpage
154	@param owner: the class responsible of plotting
155	"""
156	self.event_owner=owner
157
158
159	def set_manager(self, manager):
160	"""
161	set panel manager
162	@param manager: instance of plugin fitting
163	"""
164	self.manager = manager
165
166
167	def _DataNameEnter(self):
168	"""
169	reset the panel when a new data is selected
170	"""
171	if len(self.parameters )>0:
172	for item in self.parameters:
173	item[0].SetValue(False)
174	wx.EVT_CHECKBOX(self, item[0].GetId(), self.select_param)
175	item[2].Hide()
176	item[3].Clear()
177	item[3].Hide()
178	self.xmax.Disable()
179	self.xmin.Disable()
180	self.text1_1.Hide()
181	self.tcChi.Clear()
182	self.vbox.Layout()
183	self.GrandParent.GetSizer().Layout()
184
185
186	def copy_data(self,dataset):
187	"""
188	copy a select data in the panel to compared with the previous selected data
189	@param dataset: the data selected
190	@note : everything a data is selected, the panel check is it is different
191	from the previous selected data
192	"""
193
194	try:
195	if dataset !=None:
196	self.prevData.x= copy.deepcopy(dataset.x)
197	self.prevData.y= copy.deepcopy(dataset.y)
198	self.prevData.name=dataset.name
199	if dataset.dy==None:
200	self.prevData.dy= copy.deepcopy(dataset.dy)
201	except:
202	raise ValueError, " copy_data: cannot copy data"
203
204
205	def onFit(self,event):
206	""" signal for fitting"""
207
208	flag=self.checkFitRange()
209	self.set_manager(self.manager)
210
211	qmin=float(self.xmin.GetValue())
212	qmax =float( self.xmax.GetValue())
213	if len(self.param_toFit) >0 and flag==True:
214	#self.manager._on_single_fit(model=self.model,qmin=qmin,qmax=qmax)
215	self.manager._on_single_fit(qmin=qmin,qmax=qmax)
216	else:
217	wx.PostEvent(self.parent.GrandParent, StatusEvent(status=\
218	"Select at least on parameter to fit "))
219	def populate_box(self, dict):
220	"""
221	Populate each combox box of each page
222	@param page: the page to populate
223	"""
224	id=0
225	self.model_list_box=dict
226	list_name=[]
227	for item in self.model_list_box.itervalues():
228	if hasattr(item, "name"):
229	name = item.name
230	else:
231	name = item.__name__
232	list_name.append(name)
233	list_name.sort()
234	for name in list_name:
235	self.modelbox.Insert(name,int(id))
236	id+=1
237	wx.EVT_COMBOBOX(self.modelbox,-1, self._on_select_model)
238	return 0
239
240
241	def _on_select_model(self,event):
242	"""
243	react when a model is selected from page's combo box
244	post an event to its owner to draw an appropriate theory
245	"""
246	for item in self.model_list_box.itervalues():
247	model=item()
248	if hasattr(model, "name"):
249	name = model.name
250	else:
251	name = model.__class__.__name__
252	try:
253	if name ==event.GetString():
254	evt = ModelEventbox(model=model,name=name)
255	wx.PostEvent(self.event_owner, evt)
256	except:
257	raise #ValueError,"model.name is not equal to model class name"
258
259
260	def _onTextEnter(self,event):
261	"""
262	set a flag to determine if the fitting range entered by the user is valid
263	"""
264	try:
265	flag=self.checkFitRange()
266	if flag==True and self.model!=None:
267	self.manager.redraw_model(float(self.xmin.GetValue())\
268	,float(self.xmax.GetValue()))
269	except:
270	wx.PostEvent(self.parent.GrandParent, StatusEvent(status=\
271	"Drawing Error:wrong value entered %s"% sys.exc_value))
272
273	def checkFitRange(self):
274	"""
275	Check the validity of fitting range
276	@note: xmin should always be less than xmax or else each control box
277	background is colored in pink.
278	"""
279
280	flag = True
281	valueMin = self.xmin.GetValue()
282	valueMax = self.xmax.GetValue()
283	# Check for possible values entered
284
285	try:
286	if (float(valueMax)> float(valueMin)):
287	self.xmax.SetBackgroundColour(wx.WHITE)
288	self.xmin.SetBackgroundColour(wx.WHITE)
289	else:
290	flag = False
291	self.xmin.SetBackgroundColour("pink")
292	self.xmax.SetBackgroundColour("pink")
293	except:
294	flag = False
295	self.xmin.SetBackgroundColour("pink")
296	self.xmax.SetBackgroundColour("pink")
297
298	self.xmin.Refresh()
299	self.xmax.Refresh()
300	return flag
301
302	def check_data_change(self,dataset):
303	"""
304	check if data selected has changed and set flag self.data_hasChanged
305	has true is changed or false is unchanged
306	@param dataset: data selected
307	"""
308	self.data_hasChanged=False
309	if self.prevData.__class__ !=dataset.__class__:
310	self.data_hasChanged=True
311
312	elif self.prevData.name != dataset.name:
313	self.data_hasChanged=True
314
315	elif len(self.prevData.x) != len(self.prevData.y):
316	self.data_hasChanged=True
317
318	else:
319	for i in range(len(dataset.x)):
320	if self.prevData.x[i] !=dataset.x[i]:
321	self.data_hasChanged=True
322	break
323
324	if self.prevData.y[i] !=dataset.y[i]:
325	self.data_hasChanged=True
326	break
327
328	if dataset.dy !=None:
329	if self.prevData.dy[i] !=dataset.dy[i]:
330	self.data_hasChanged=True
331	break
332
333
334	def set_data_name(self,dataset):
335	"""
336	set data's name.if data has changed reset the panel and xmin and xmax
337	@param name: data 's name
338	@attention: still haven't find a better way to display Q name and unit
339	for xmin and xmax range sizer
340	"""
341	self.check_data_change(dataset)
342	if self.data_hasChanged==True:
343	self._DataNameEnter()
344	self.data=dataset
345	self.copy_data(dataset)
346	#Displaying Data information
347	self.DataSource.SetValue(str(dataset.name))
348	self._xaxis,self._xunit=dataset.get_xaxis()
349	self.text4_3.SetLabel(self._xaxis+"["+self._xunit+"]")
350	self.text4_1.Show()
351	self.text4_2.Show()
352	self.text4_3.Show()
353
354	self.xmin.SetValue(format_number(min(dataset.x)))
355	self.xmin.Show()
356
357	self.xmax.SetValue(format_number(max(dataset.x)))
358	self.xmax.Show()
359
360	if ((len(self.param_toFit ) >0) and self.DataSource.GetValue()and \
361	self.modelbox.GetValue() and (self.model_hasChanged ==False)):
362	self.xmin.Enable()
363	self.xmax.Enable()
364	else:
365	self.xmin.Disable()
366	self.xmax.Disable()
367
368	self.vbox.Layout()
369	self.GrandParent.GetSizer().Layout()
370
371
372	def set_model_name(self,name):
373	"""
374	set model name. set also self.model_hasChanged to true is the model
375	type has changed or false if it didn't
376	@param name: model 's name
377	"""
378	self.model_hasChanged=False
379	if (name != self.prevmodel_name):
380	self.model_hasChanged=True
381	self.tcChi.Clear()
382	#self.modelbox.SetValue(str(name))
383	self.prevmodel_name=self.modelbox.GetValue()
384
385
386	def get_model_box(self):
387	""" return reference to combox box self.model"""
388	return self.modelbox
389
390
391	def get_param_list(self):
392	"""
393	@return self.param_toFit: list containing references to TextCtrl
394	checked.Theses TextCtrl will allow reference to parameters to fit.
395	@raise: if return an empty list of parameter fit will nnote work
396	properly so raise ValueError,"missing parameter to fit"
397	"""
398	if self.param_toFit !=[]:
399	return self.param_toFit
400	else:
401	raise ValueError,"missing parameter to fit"
402
403
404	def set_panel(self,model):
405	"""
406	Build the panel from the model content
407	@param model: the model selected in combo box for fitting purpose
408	"""
409
410	self.sizer2.Clear(True)
411	self.parameters = []
412	self.param_toFit=[]
413	self.model = model
414	keys = self.model.getParamList()
415	keys.sort()
416	iy = 1
417	ix = 0
418	self.cb1 = wx.CheckBox(self, -1,'Parameters', (10, 10))
419	wx.EVT_CHECKBOX(self, self.cb1.GetId(), self.select_all_param)
420	self.sizer2.Add(self.cb1,(iy, ix),(1,1),\
421	wx.LEFT\|wx.EXPAND\|wx.ADJUST_MINSIZE, 15)
422	ix +=1
423	self.text2_2 = wx.StaticText(self, -1, 'Values')
424	self.sizer2.Add(self.text2_2,(iy, ix),(1,1),\
425	wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
426	ix +=2
427	self.text2_3 = wx.StaticText(self, -1, 'Errors')
428	self.sizer2.Add(self.text2_3,(iy, ix),(1,1),\
429	wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
430	self.text2_3.Hide()
431	ix +=1
432	self.text2_4 = wx.StaticText(self, -1, 'Units')
433	self.sizer2.Add(self.text2_4,(iy, ix),(1,1),\
434	wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
435	self.text2_4.Hide()
436	for item in keys:
437	iy += 1
438	ix = 0
439
440	cb = wx.CheckBox(self, -1, item, (10, 10))
441	cb.SetValue(False)
442	self.sizer2.Add( cb,( iy, ix),(1,1), wx.LEFT\|wx.EXPAND\|wx.ADJUST_MINSIZE, 15)
443	wx.EVT_CHECKBOX(self, cb.GetId(), self.select_param)
444
445	ix += 1
446	value= self.model.getParam(item)
447	ctl1 = wx.TextCtrl(self, -1, size=(_BOX_WIDTH,20), style=wx.TE_PROCESS_ENTER)
448	ctl1.SetValue(str (format_number(value)))
449	ctl1.Bind(wx.EVT_KILL_FOCUS, self._onparamEnter)
450	self.sizer2.Add(ctl1, (iy,ix),(1,1), wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
451	ix += 1
452	text2=wx.StaticText(self, -1, '+/-')
453	self.sizer2.Add(text2,(iy, ix),(1,1),\
454	wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
455	text2.Hide()
456	ix += 1
457	ctl2 = wx.TextCtrl(self, -1, size=(_BOX_WIDTH,20), style=wx.TE_PROCESS_ENTER)
458	self.sizer2.Add(ctl2, (iy,ix),(1,1), wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
459	ctl2.Hide()
460	ix +=1
461	# Units
462	try:
463	units = wx.StaticText(self, -1, self.model.details[item][0], style=wx.ALIGN_LEFT)
464	except:
465	units = wx.StaticText(self, -1, "", style=wx.ALIGN_LEFT)
466
467	self.sizer2.Add(units, (iy,ix),(1,1), wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
468	#save data
469	self.parameters.append([cb,ctl1,text2,ctl2])
470	#Display units text on panel
471	for item in keys:
472	if self.model.details[item][0]!='':
473	self.text2_4.Show()
474	break
475	else:
476	self.text2_4.Hide()
477	#Disable or enable fit button
478	if (self.modelbox.GetValue() and self.DataSource.GetValue()):
479	if not (len(self.param_toFit ) >0):
480	self.xmin.Disable()
481	self.xmax.Disable()
482	else:
483	self.xmin.Enable()
484	self.xmax.Enable()
485	else:
486	self.xmin.Disable()
487	self.xmax.Disable()
488
489	self.vbox.Layout()
490	self.GrandParent.GetSizer().Layout()
491
492
493
494	def _onparamEnter(self,event):
495	"""
496	when enter value on panel redraw model according to changed
497	"""
498	self.set_model_parameter()
499
500	def set_model_parameter(self):
501	if len(self.parameters) !=0 and self.model !=None:
502	for item in self.parameters:
503	try:
504	name=str(item[0].GetLabelText())
505	value= float(item[1].GetValue())
506
507	self.model.setParam(name,value)
508	self.manager.redraw_model(float(self.xmin.GetValue())\
509	,float(self.xmax.GetValue()))
510	except:
511	wx.PostEvent(self.parent.GrandParent, StatusEvent(status=\
512	"Drawing Error:wrong value entered : %s"% sys.exc_value))
513	def select_all_param(self,event):
514	"""
515	set to true or false all checkBox given the main checkbox value cb1
516	"""
517	self.param_toFit=[]
518	if self.parameters !=[]:
519	if self.cb1.GetValue()==True:
520	for item in self.parameters:
521
522	item[0].SetValue(True)
523	list= [item[0],item[1],item[2],item[3]]
524	self.param_toFit.append(list )
525	if (self.modelbox.GetValue() and self.DataSource.GetValue()):
526	if not (len(self.param_toFit ) >0):
527	self.xmin.Disable()
528	self.xmax.Disable()
529	else:
530	self.xmin.Enable()
531	self.xmax.Enable()
532	else:
533	for item in self.parameters:
534	item[0].SetValue(False)
535	self.param_toFit=[]
536
537	self.xmin.Disable()
538	self.xmax.Disable()
539
540
541	def select_param(self,event):
542	"""
543	Select TextCtrl checked for fitting purpose and stores them
544	in self.param_toFit=[] list
545	"""
546	self.param_toFit=[]
547	for item in self.parameters:
548	if item[0].GetValue()==True:
549	list= [item[0],item[1],item[2],item[3]]
550	self.param_toFit.append(list )
551	else:
552	if item in self.param_toFit:
553	self.param_toFit.remove(item)
554	if len(self.parameters)==len(self.param_toFit):
555	self.cb1.SetValue(True)
556	else:
557	self.cb1.SetValue(False)
558	if (self.modelbox.GetValue() and self.DataSource.GetValue()):
559	if not (len(self.param_toFit ) >0):
560	self.xmin.Disable()
561	self.xmax.Disable()
562	else:
563	self.xmin.Enable()
564	self.xmax.Enable()
565	else:
566	self.xmin.Disable()
567	self.xmax.Disable()
568
569
570
571	def onsetValues(self,chisqr, out,cov):
572	"""
573	Build the panel from the fit result
574	@param chisqr:Value of the goodness of fit metric
575	@param out:list of parameter with the best value found during fitting
576	@param cov:Covariance matrix
577
578	"""
579	#print "fitting : onsetvalues out",out
580	self.tcChi.Clear()
581	self.tcChi.SetValue(format_number(chisqr))
582	params = {}
583	is_modified = False
584	has_error = False
585	if out.__class__==numpy.float64:
586	self.param_toFit[0][1].SetValue(format_number(out))
587	self.param_toFit[0][1].Refresh()
588	if cov !=None :
589	self.text2_3.Show()
590	self.param_toFit[0][2].Show()
591	self.param_toFit[0][3].Clear()
592	self.param_toFit[0][3].SetValue(format_number(cov[0]))
593	self.param_toFit[0][3].Show()
594	#out is a list : set parameters and errors in TextCtrl
595	else:
596	i=0
597	#print "fitpage: list param model",list
598	#for item in self.param_toFit:
599	# print "fitpage: list display",item[0].GetLabelText()
600	for item in self.param_toFit:
601	if( out != None ) and len(out)<=len(self.param_toFit)and i < len(out):
602	item[1].SetValue(format_number(out[i]))
603	item[1].Refresh()
604	if (cov !=None)and len(cov)<=len(self.param_toFit)and i < len(cov):
605	self.text2_3.Show()
606	item[2].Show()
607	item[3].Clear()
608	item[3].SetValue(format_number(cov[i]))
609	item[3].Show()
610	i+=1
611
612	self.vbox.Layout()
613	self.GrandParent.GetSizer().Layout()
614

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source: sasview/sansview/perspectives/fitting/fitpage.py @ e7430b6

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