fitpage.py @ 1b07935d

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 1b07935d was 1b07935d, checked in by Gervaise Alina <gervyh@…>, 16 years ago
creating a panel for model display
Property mode set to `100644`
File size: 22.8 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	for item in self.model_list_box.itervalues():
227	if hasattr(item, "name"):
228	name = item.name
229	else:
230	name = item.__name__
231
232	self.modelbox.Insert(name,int(id))
233	id+=1
234
235	wx.EVT_COMBOBOX(self.modelbox,-1, self._on_select_model)
236	return 0
237
238
239	def _on_select_model(self,event):
240	"""
241	react when a model is selected from page's combo box
242	post an event to its owner to draw an appropriate theory
243	"""
244	for item in self.model_list_box.itervalues():
245	model=item()
246	if hasattr(model, "name"):
247	name = model.name
248	else:
249	name = model.__class__.__name__
250	try:
251	if name ==event.GetString():
252	evt = ModelEventbox(model=model,name=name)
253	wx.PostEvent(self.event_owner, evt)
254	except:
255	raise #ValueError,"model.name is not equal to model class name"
256
257
258
259	def _onTextEnter(self,event):
260	"""
261	set a flag to determine if the fitting range entered by the user is valid
262	"""
263	try:
264	flag=self.checkFitRange()
265	if flag==True and self.model!=None:
266	self.manager.redraw_model(float(self.xmin.GetValue())\
267	,float(self.xmax.GetValue()))
268	except:
269	wx.PostEvent(self.parent.GrandParent, StatusEvent(status=\
270	"Drawing Error:wrong value entered %s"% sys.exc_value))
271
272	def checkFitRange(self):
273	"""
274	Check the validity of fitting range
275	@note: xmin should always be less than xmax or else each control box
276	background is colored in pink.
277	"""
278
279	flag = True
280	valueMin = self.xmin.GetValue()
281	valueMax = self.xmax.GetValue()
282	# Check for possible values entered
283
284	try:
285	if (float(valueMax)> float(valueMin)):
286	self.xmax.SetBackgroundColour(wx.WHITE)
287	self.xmin.SetBackgroundColour(wx.WHITE)
288	else:
289	flag = False
290	self.xmin.SetBackgroundColour("pink")
291	self.xmax.SetBackgroundColour("pink")
292	except:
293	flag = False
294	self.xmin.SetBackgroundColour("pink")
295	self.xmax.SetBackgroundColour("pink")
296
297	self.xmin.Refresh()
298	self.xmax.Refresh()
299	return flag
300
301	def check_data_change(self,dataset):
302	"""
303	check if data selected has changed and set flag self.data_hasChanged
304	has true is changed or false is unchanged
305	@param dataset: data selected
306	"""
307	self.data_hasChanged=False
308	if self.prevData.__class__ !=dataset.__class__:
309	self.data_hasChanged=True
310
311	elif self.prevData.name != dataset.name:
312	self.data_hasChanged=True
313
314	elif len(self.prevData.x) != len(self.prevData.y):
315	self.data_hasChanged=True
316
317	else:
318	for i in range(len(dataset.x)):
319	if self.prevData.x[i] !=dataset.x[i]:
320	self.data_hasChanged=True
321	break
322
323	if self.prevData.y[i] !=dataset.y[i]:
324	self.data_hasChanged=True
325	break
326
327	if dataset.dy !=None:
328	if self.prevData.dy[i] !=dataset.dy[i]:
329	self.data_hasChanged=True
330	break
331
332
333	def set_data_name(self,dataset):
334	"""
335	set data's name.if data has changed reset the panel and xmin and xmax
336	@param name: data 's name
337	@attention: still haven't find a better way to display Q name and unit
338	for xmin and xmax range sizer
339	"""
340	self.check_data_change(dataset)
341	if self.data_hasChanged==True:
342	self._DataNameEnter()
343	self.data=dataset
344	self.copy_data(dataset)
345	#Displaying Data information
346	self.DataSource.SetValue(str(dataset.name))
347	self._xaxis,self._xunit=dataset.get_xaxis()
348	self.text4_3.SetLabel(self._xaxis+"["+self._xunit+"]")
349	self.text4_1.Show()
350	self.text4_2.Show()
351	self.text4_3.Show()
352
353	self.xmin.SetValue(format_number(min(dataset.x)))
354	self.xmin.Show()
355
356	self.xmax.SetValue(format_number(max(dataset.x)))
357	self.xmax.Show()
358
359	if ((len(self.param_toFit ) >0) and self.DataSource.GetValue()and \
360	self.modelbox.GetValue() and (self.model_hasChanged ==False)):
361	self.xmin.Enable()
362	self.xmax.Enable()
363	else:
364	self.xmin.Disable()
365	self.xmax.Disable()
366
367	self.vbox.Layout()
368	self.GrandParent.GetSizer().Layout()
369
370
371	def set_model_name(self,name):
372	"""
373	set model name. set also self.model_hasChanged to true is the model
374	type has changed or false if it didn't
375	@param name: model 's name
376	"""
377	self.model_hasChanged=False
378	if (name != self.prevmodel_name):
379	self.model_hasChanged=True
380	self.tcChi.Clear()
381	#self.modelbox.SetValue(str(name))
382	self.prevmodel_name=self.modelbox.GetValue()
383
384
385	def get_model_box(self):
386	""" return reference to combox box self.model"""
387	return self.modelbox
388
389
390	def get_param_list(self):
391	"""
392	@return self.param_toFit: list containing references to TextCtrl
393	checked.Theses TextCtrl will allow reference to parameters to fit.
394	@raise: if return an empty list of parameter fit will nnote work
395	properly so raise ValueError,"missing parameter to fit"
396	"""
397	if self.param_toFit !=[]:
398	return self.param_toFit
399	else:
400	raise ValueError,"missing parameter to fit"
401
402
403	def set_panel(self,model):
404	"""
405	Build the panel from the model content
406	@param model: the model selected in combo box for fitting purpose
407	"""
408
409	self.sizer2.Clear(True)
410	self.parameters = []
411	self.param_toFit=[]
412	self.model = model
413	keys = self.model.getParamList()
414	keys.sort()
415	iy = 1
416	ix = 0
417	self.cb1 = wx.CheckBox(self, -1,'Parameters', (10, 10))
418	wx.EVT_CHECKBOX(self, self.cb1.GetId(), self.select_all_param)
419	self.sizer2.Add(self.cb1,(iy, ix),(1,1),\
420	wx.LEFT\|wx.EXPAND\|wx.ADJUST_MINSIZE, 15)
421	ix +=1
422	self.text2_2 = wx.StaticText(self, -1, 'Values')
423	self.sizer2.Add(self.text2_2,(iy, ix),(1,1),\
424	wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
425	ix +=2
426	self.text2_3 = wx.StaticText(self, -1, 'Errors')
427	self.sizer2.Add(self.text2_3,(iy, ix),(1,1),\
428	wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
429	self.text2_3.Hide()
430	ix +=1
431	self.text2_4 = wx.StaticText(self, -1, 'Units')
432	self.sizer2.Add(self.text2_4,(iy, ix),(1,1),\
433	wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
434	self.text2_4.Hide()
435	for item in keys:
436	iy += 1
437	ix = 0
438
439	cb = wx.CheckBox(self, -1, item, (10, 10))
440	cb.SetValue(False)
441	self.sizer2.Add( cb,( iy, ix),(1,1), wx.LEFT\|wx.EXPAND\|wx.ADJUST_MINSIZE, 15)
442	wx.EVT_CHECKBOX(self, cb.GetId(), self.select_param)
443
444	ix += 1
445	value= self.model.getParam(item)
446	ctl1 = wx.TextCtrl(self, -1, size=(_BOX_WIDTH,20), style=wx.TE_PROCESS_ENTER)
447	ctl1.SetValue(str (format_number(value)))
448	ctl1.Bind(wx.EVT_KILL_FOCUS, self._onparamEnter)
449	self.sizer2.Add(ctl1, (iy,ix),(1,1), wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
450	ix += 1
451	text2=wx.StaticText(self, -1, '+/-')
452	self.sizer2.Add(text2,(iy, ix),(1,1),\
453	wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
454	text2.Hide()
455	ix += 1
456	ctl2 = wx.TextCtrl(self, -1, size=(_BOX_WIDTH,20), style=wx.TE_PROCESS_ENTER)
457	self.sizer2.Add(ctl2, (iy,ix),(1,1), wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
458	ctl2.Hide()
459	ix +=1
460	# Units
461	try:
462	units = wx.StaticText(self, -1, self.model.details[item][0], style=wx.ALIGN_LEFT)
463	except:
464	units = wx.StaticText(self, -1, "", style=wx.ALIGN_LEFT)
465
466	self.sizer2.Add(units, (iy,ix),(1,1), wx.EXPAND\|wx.ADJUST_MINSIZE, 0)
467	#save data
468	self.parameters.append([cb,ctl1,text2,ctl2])
469	#Display units text on panel
470	for item in keys:
471	if self.model.details[item][0]!='':
472	self.text2_4.Show()
473	break
474	else:
475	self.text2_4.Hide()
476	#Disable or enable fit button
477	if (self.modelbox.GetValue() and self.DataSource.GetValue()):
478	if not (len(self.param_toFit ) >0):
479	self.xmin.Disable()
480	self.xmax.Disable()
481	else:
482	self.xmin.Enable()
483	self.xmax.Enable()
484	else:
485	self.xmin.Disable()
486	self.xmax.Disable()
487
488	self.vbox.Layout()
489	self.GrandParent.GetSizer().Layout()
490
491
492
493	def _onparamEnter(self,event):
494	"""
495	when enter value on panel redraw model according to changed
496	"""
497	self.set_model_parameter()
498
499	def set_model_parameter(self):
500	if len(self.parameters) !=0 and self.model !=None:
501	for item in self.parameters:
502	try:
503	name=str(item[0].GetLabelText())
504	value= float(item[1].GetValue())
505
506	self.model.setParam(name,value)
507	self.manager.redraw_model(float(self.xmin.GetValue())\
508	,float(self.xmax.GetValue()))
509	except:
510	wx.PostEvent(self.parent.GrandParent, StatusEvent(status=\
511	"Drawing Error:wrong value entered : %s"% sys.exc_value))
512	def select_all_param(self,event):
513	"""
514	set to true or false all checkBox given the main checkbox value cb1
515	"""
516	self.param_toFit=[]
517	if self.parameters !=[]:
518	if self.cb1.GetValue()==True:
519	for item in self.parameters:
520
521	item[0].SetValue(True)
522	list= [item[0],item[1],item[2],item[3]]
523	self.param_toFit.append(list )
524	if (self.modelbox.GetValue() and self.DataSource.GetValue()):
525	if not (len(self.param_toFit ) >0):
526	self.xmin.Disable()
527	self.xmax.Disable()
528	else:
529	self.xmin.Enable()
530	self.xmax.Enable()
531	else:
532	for item in self.parameters:
533	item[0].SetValue(False)
534	self.param_toFit=[]
535
536	self.xmin.Disable()
537	self.xmax.Disable()
538
539
540	def select_param(self,event):
541	"""
542	Select TextCtrl checked for fitting purpose and stores them
543	in self.param_toFit=[] list
544	"""
545	self.param_toFit=[]
546	for item in self.parameters:
547	if item[0].GetValue()==True:
548	list= [item[0],item[1],item[2],item[3]]
549	self.param_toFit.append(list )
550	else:
551	if item in self.param_toFit:
552	self.param_toFit.remove(item)
553	if len(self.parameters)==len(self.param_toFit):
554	self.cb1.SetValue(True)
555	else:
556	self.cb1.SetValue(False)
557	if (self.modelbox.GetValue() and self.DataSource.GetValue()):
558	if not (len(self.param_toFit ) >0):
559	self.xmin.Disable()
560	self.xmax.Disable()
561	else:
562	self.xmin.Enable()
563	self.xmax.Enable()
564	else:
565	self.xmin.Disable()
566	self.xmax.Disable()
567
568
569
570	def onsetValues(self,chisqr, out,cov):
571	"""
572	Build the panel from the fit result
573	@param chisqr:Value of the goodness of fit metric
574	@param out:list of parameter with the best value found during fitting
575	@param cov:Covariance matrix
576
577	"""
578	#print "fitting : onsetvalues out",out
579	self.tcChi.Clear()
580	self.tcChi.SetValue(format_number(chisqr))
581	params = {}
582	is_modified = False
583	has_error = False
584	if out.__class__==numpy.float64:
585	self.param_toFit[0][1].SetValue(format_number(out))
586	self.param_toFit[0][1].Refresh()
587	if cov !=None :
588	self.text2_3.Show()
589	self.param_toFit[0][2].Show()
590	self.param_toFit[0][3].Clear()
591	self.param_toFit[0][3].SetValue(format_number(cov[0]))
592	self.param_toFit[0][3].Show()
593	#out is a list : set parameters and errors in TextCtrl
594	else:
595	i=0
596	#print "fitpage: list param model",list
597	#for item in self.param_toFit:
598	# print "fitpage: list display",item[0].GetLabelText()
599	for item in self.param_toFit:
600	if( out != None ) and len(out)<=len(self.param_toFit)and i < len(out):
601	item[1].SetValue(format_number(out[i]))
602	item[1].Refresh()
603	if (cov !=None)and len(cov)<=len(self.param_toFit)and i < len(cov):
604	self.text2_3.Show()
605	item[2].Show()
606	item[3].Clear()
607	item[3].SetValue(format_number(cov[i]))
608	item[3].Show()
609	i+=1
610
611	self.vbox.Layout()
612	self.GrandParent.GetSizer().Layout()
613

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source: sasview/sansview/perspectives/fitting/fitpage.py @ 1b07935d

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