import sys import wx import wx.lib import numpy,math import copy from sans.guicomm.events import StatusEvent (ModelEventbox, EVT_MODEL_BOX) = wx.lib.newevent.NewEvent() _BOX_WIDTH = 80 def format_number(value, high=False): """ Return a float in a standardized, human-readable formatted string """ try: value = float(value) except: print "returning 0" return "0" if high: return "%-6.4g" % value else: return "%-5.3g" % value class FitPage2D(wx.Panel): """ FitPanel class contains fields allowing to display results when fitting a model and one data @note: For Fit to be performed the user should check at least one parameter on fit Panel window. """ ## Internal name for the AUI manager window_name = "Fit page" ## Title to appear on top of the window window_caption = "Fit Page" def __init__(self, parent,data, *args, **kwargs): wx.Panel.__init__(self, parent, *args, **kwargs) """ Initialization of the Panel """ self.manager = None self.parent = parent self.event_owner=None #panel interface self.vbox = wx.BoxSizer(wx.VERTICAL) self.sizer5 = wx.GridBagSizer(5,5) self.sizer4 = wx.GridBagSizer(5,5) self.sizer3 = wx.GridBagSizer(5,5) self.sizer2 = wx.GridBagSizer(5,5) self.sizer1 = wx.GridBagSizer(5,5) #self.DataSource = wx.TextCtrl(self, -1,size=(_BOX_WIDTH,20)) #self.DataSource.SetToolTipString("name of data to fit") #self.DataSource.SetValue(str(data.name)) #self.DataSource.Disable() self.DataSource =wx.StaticText(self, -1,str(data.name)) self.modelbox = wx.ComboBox(self, -1) id = wx.NewId() self.btFit =wx.Button(self,id,'Fit') self.btFit.Bind(wx.EVT_BUTTON, self.onFit,id=id) self.btFit.SetToolTipString("Perform fit.") self.static_line_1 = wx.StaticLine(self, -1) self.vbox.Add(self.sizer3) self.vbox.Add(self.sizer2) self.vbox.Add(self.static_line_1, 0, wx.EXPAND, 0) self.vbox.Add(self.sizer5) self.vbox.Add(self.sizer4) self.vbox.Add(self.sizer1) id = wx.NewId() self.btClose =wx.Button(self,id,'Close') self.btClose.Bind(wx.EVT_BUTTON, self.onClose,id=id) self.btClose.SetToolTipString("Close page.") ix = 0 iy = 1 self.sizer3.Add(wx.StaticText(self, -1, 'Data Source'),(iy,ix),\ (1,1), wx.LEFT|wx.EXPAND|wx.ADJUST_MINSIZE, 15) ix += 1 self.sizer3.Add(self.DataSource,(iy,ix),(1,1), wx.EXPAND|wx.ADJUST_MINSIZE, 0) ix += 1 self.sizer3.Add((20,20),(iy,ix),(1,1),wx.RIGHT|wx.EXPAND|wx.ADJUST_MINSIZE,0) ix = 0 iy += 1 self.sizer3.Add(wx.StaticText(self,-1,'Model'),(iy,ix),(1,1)\ , wx.LEFT|wx.EXPAND|wx.ADJUST_MINSIZE, 15) ix += 1 self.sizer3.Add(self.modelbox,(iy,ix),(1,1), wx.EXPAND|wx.ADJUST_MINSIZE, 0) ix = 0 iy = 1 #set maximum range for x in linear scale self.text4_3 = wx.StaticText(self, -1, 'Maximum Data\n Range (Linear)', style=wx.ALIGN_LEFT) self.sizer4.Add(self.text4_3,(iy,ix),(1,1),\ wx.LEFT|wx.EXPAND|wx.ADJUST_MINSIZE, 15) ix += 1 self.text4_1 = wx.StaticText(self, -1, 'Min') self.sizer4.Add(self.text4_1,(iy, ix),(1,1),\ wx.LEFT|wx.EXPAND|wx.ADJUST_MINSIZE, 15) #self.text4_1.Hide() ix += 2 self.text4_2 = wx.StaticText(self, -1, 'Max') self.sizer4.Add(self.text4_2,(iy, ix),(1,1),\ wx.EXPAND|wx.ADJUST_MINSIZE, 0) #self.text4_2.Hide() #self.text4_3.Hide() ix = 0 iy += 1 self.text4_4 = wx.StaticText(self, -1, 'x range') self.sizer4.Add(self.text4_4,(iy, ix),(1,1),\ wx.LEFT|wx.EXPAND|wx.ADJUST_MINSIZE, 15) ix += 1 self.xmin = wx.TextCtrl(self, -1,size=(_BOX_WIDTH,20)) self.xmin.SetValue(format_number(data.xmin)) self.xmin.SetToolTipString("Minimun value of x in linear scale.") self.sizer4.Add(self.xmin,(iy, ix),(1,1), wx.LEFT|wx.EXPAND|wx.ADJUST_MINSIZE, 0) self.xmin.Bind(wx.EVT_KILL_FOCUS, self._onTextEnter) self.xmin.Bind(wx.EVT_TEXT_ENTER, self._onTextEnter) ix += 2 self.xmax = wx.TextCtrl(self, -1,size=(_BOX_WIDTH,20)) self.xmax.SetValue(format_number(data.xmax)) self.xmax.SetToolTipString("Maximum value of x in linear scale.") self.sizer4.Add(self.xmax,(iy,ix),(1,1), wx.LEFT|wx.EXPAND|wx.ADJUST_MINSIZE, 0) self.xmax.Bind(wx.EVT_KILL_FOCUS, self._onTextEnter) self.xmax.Bind(wx.EVT_TEXT_ENTER, self._onTextEnter) iy +=1 ix = 0 self.text4_5 = wx.StaticText(self, -1, 'y range') self.sizer4.Add(self.text4_5,(iy, ix),(1,1),\ wx.LEFT|wx.EXPAND|wx.ADJUST_MINSIZE, 15) ix += 1 self.ymin = wx.TextCtrl(self, -1,size=(_BOX_WIDTH,20)) self.ymin.SetValue(format_number(data.ymin)) self.ymin.SetToolTipString("Minimun value of y in linear scale.") self.sizer4.Add(self.ymin,(iy, ix),(1,1), wx.LEFT|wx.EXPAND|wx.ADJUST_MINSIZE, 0) self.ymin.Bind(wx.EVT_KILL_FOCUS, self._onTextEnter) self.ymin.Bind(wx.EVT_TEXT_ENTER, self._onTextEnter) ix += 2 self.ymax = wx.TextCtrl(self, -1,size=(_BOX_WIDTH,20)) self.ymax.SetValue(format_number(data.ymax)) self.ymax.SetToolTipString("Maximum value of y in linear scale.") self.sizer4.Add(self.ymax,(iy,ix),(1,1), wx.LEFT|wx.EXPAND|wx.ADJUST_MINSIZE, 0) self.ymax.Bind(wx.EVT_KILL_FOCUS, self._onTextEnter) self.ymax.Bind(wx.EVT_TEXT_ENTER, self._onTextEnter) #Set chisqr result into TextCtrl ix = 0 iy = 1 self.text1_1 = wx.StaticText(self, -1, 'Chi2/dof', style=wx.ALIGN_LEFT) self.sizer1.Add(self.text1_1,(iy,ix),(1,1),\ wx.LEFT|wx.EXPAND|wx.ADJUST_MINSIZE, 15) ix += 1 self.tcChi = wx.TextCtrl(self, -1,size=(_BOX_WIDTH,20)) self.tcChi.SetToolTipString("Chi^2 over degrees of freedom.") self.sizer1.Add(self.tcChi,(iy,ix),(1,1), wx.LEFT|wx.EXPAND|wx.ADJUST_MINSIZE, 0) ix +=2 self.sizer1.Add(self.btFit,(iy,ix),(1,1), wx.LEFT|wx.EXPAND|wx.ADJUST_MINSIZE, 0) ix+= 1 self.sizer1.Add( self.btClose,(iy,ix),(1,1), wx.LEFT|wx.EXPAND|wx.ADJUST_MINSIZE, 0) ix= 1 iy+=1 self.sizer1.Add((20,20),(iy,ix),(1,1), wx.LEFT|wx.EXPAND|wx.ADJUST_MINSIZE, 0) # contains link between model ,all its parameters, and panel organization self.parameters=[] #contains link between a model and selected parameters to fit self.param_toFit=[] # model on which the fit would be performed self.model=None # preview selected model name #dictionary of model name and model class self.model_list_box={} self.data = data self.vbox.Layout() self.vbox.Fit(self) self.SetSizer(self.vbox) self.Centre() def set_owner(self,owner): """ set owner of fitpage @param owner: the class responsible of plotting """ self.event_owner=owner def set_manager(self, manager): """ set panel manager @param manager: instance of plugin fitting """ self.manager = manager def onClose(self,event): """ close the page associated with this panel""" self.GrandParent.onClose() def compute_chisqr(self): """ @param fn: function that return model value @return residuals """ flag=self.checkFitRange() res=[] if flag== True: try: xmin = float(self.xmin.GetValue()) xmax = float(self.xmax.GetValue()) ymin = float(self.ymin.GetValue()) ymax = float(self.ymax.GetValue()) for i in range(len(self.data.y_bins)): if self.data.y_bins[i]>= ymin and self.data.y_bins[i]<= ymax: for j in range(len(self.data.x_bins)): if self.data.x_bins[j]>= xmin and self.data.x_bins[j]<= xmax: res.append( (self.data.image[j][i]- self.model.runXY(\ [self.data.x_bins[j],self.data.y_bins[i]]))\ /self.data.err_image[j][i] ) sum=0 for item in res: if numpy.isfinite(item): sum +=item self.tcChi.SetValue(format_number(math.fabs(sum))) except: wx.PostEvent(self.parent.GrandParent, StatusEvent(status=\ "Chisqr cannot be compute: %s"% sys.exc_value)) def onFit(self,event): """ signal for fitting""" flag=self.checkFitRange() self.set_manager(self.manager) qmin=float(self.xmin.GetValue()) qmax =float( self.xmax.GetValue()) if len(self.param_toFit) >0 and flag==True: self.manager.schedule_for_fit( value=1,fitproblem =None) self.manager._on_single_fit(qmin=qmin,qmax=qmax) else: wx.PostEvent(self.parent.GrandParent, StatusEvent(status=\ "Select at least on parameter to fit ")) def populate_box(self, dict): """ Populate each combox box of each page @param page: the page to populate """ id=0 self.model_list_box=dict list_name=[] for item in self.model_list_box.itervalues(): name = item.__name__ if hasattr(item, "name"): name = item.name list_name.append(name) list_name.sort() for name in list_name: self.modelbox.Insert(name,int(id)) id+=1 wx.EVT_COMBOBOX(self.modelbox,-1, self._on_select_model) return 0 def _on_select_model(self,event): """ react when a model is selected from page's combo box post an event to its owner to draw an appropriate theory """ for item in self.model_list_box.itervalues(): name = item.__name__ if hasattr(item, "name"): name = item.name #print "fitpage: _on_select_model model name",name ,event.GetString() if name ==event.GetString(): try: evt = ModelEventbox(model=item(),name=name) wx.PostEvent(self.event_owner, evt) except: raise #ValueError,"model.name is not equal to model class name" break def _onTextEnter(self,event): """ set a flag to determine if the fitting range entered by the user is valid """ try: flag=self.checkFitRange() if flag==True and self.model!=None: print"fit page",self.xmin.GetValue(),self.xmax.GetValue() self.manager.redraw_model(float(self.xmin.GetValue())\ ,float(self.xmax.GetValue())) except: wx.PostEvent(self.parent.GrandParent, StatusEvent(status=\ "Drawing Error:wrong value entered %s"% sys.exc_value)) def checkFitRange(self): """ Check the validity of fitting range @note: xmin should always be less than xmax or else each control box background is colored in pink. """ flag = True valueMin = self.xmin.GetValue() valueMax = self.xmax.GetValue() # Check for possible values entered print "fitpage: checkfitrange:",valueMin,valueMax try: if (float(valueMax)> float(valueMin)): self.xmax.SetBackgroundColour(wx.WHITE) self.xmin.SetBackgroundColour(wx.WHITE) else: flag = False self.xmin.SetBackgroundColour("pink") self.xmax.SetBackgroundColour("pink") except: flag = False self.xmin.SetBackgroundColour("pink") self.xmax.SetBackgroundColour("pink") self.xmin.Refresh() self.xmax.Refresh() return flag def get_model_box(self): """ return reference to combox box self.model""" return self.modelbox def get_param_list(self): """ @return self.param_toFit: list containing references to TextCtrl checked.Theses TextCtrl will allow reference to parameters to fit. @raise: if return an empty list of parameter fit will nnote work properly so raise ValueError,"missing parameter to fit" """ if self.param_toFit !=[]: return self.param_toFit else: raise ValueError,"missing parameter to fit" def set_panel(self,model): """ Build the panel from the model content @param model: the model selected in combo box for fitting purpose """ self.sizer2.Clear(True) self.parameters = [] self.param_toFit=[] self.model = model keys = self.model.getParamList() keys.sort() disp_list=self.model.getDispParamList() disp_list.sort() iy = 1 ix = 0 self.cb1 = wx.CheckBox(self, -1,'Parameters', (10, 10)) wx.EVT_CHECKBOX(self, self.cb1.GetId(), self.select_all_param) self.sizer2.Add(self.cb1,(iy, ix),(1,1),\ wx.LEFT|wx.EXPAND|wx.ADJUST_MINSIZE, 15) ix +=1 self.text2_2 = wx.StaticText(self, -1, 'Values') self.sizer2.Add(self.text2_2,(iy, ix),(1,1),\ wx.EXPAND|wx.ADJUST_MINSIZE, 0) ix +=2 self.text2_3 = wx.StaticText(self, -1, 'Errors') self.sizer2.Add(self.text2_3,(iy, ix),(1,1),\ wx.EXPAND|wx.ADJUST_MINSIZE, 0) self.text2_3.Hide() ix +=1 self.text2_4 = wx.StaticText(self, -1, 'Units') self.sizer2.Add(self.text2_4,(iy, ix),(1,1),\ wx.EXPAND|wx.ADJUST_MINSIZE, 0) self.text2_4.Hide() for item in keys: if not item in disp_list: iy += 1 ix = 0 cb = wx.CheckBox(self, -1, item, (10, 10)) cb.SetValue(False) self.sizer2.Add( cb,( iy, ix),(1,1), wx.LEFT|wx.EXPAND|wx.ADJUST_MINSIZE, 15) wx.EVT_CHECKBOX(self, cb.GetId(), self.select_param) ix += 1 value= self.model.getParam(item) ctl1 = wx.TextCtrl(self, -1, size=(_BOX_WIDTH,20), style=wx.TE_PROCESS_ENTER) ctl1.SetValue(str (format_number(value))) ctl1.Bind(wx.EVT_KILL_FOCUS, self._onparamEnter) ctl1.Bind(wx.EVT_TEXT_ENTER,self._onparamEnter) self.sizer2.Add(ctl1, (iy,ix),(1,1), wx.EXPAND) ix += 1 text2=wx.StaticText(self, -1, '+/-') self.sizer2.Add(text2,(iy, ix),(1,1),\ wx.EXPAND|wx.ADJUST_MINSIZE, 0) text2.Hide() ix += 1 ctl2 = wx.TextCtrl(self, -1, size=(_BOX_WIDTH,20), style=wx.TE_PROCESS_ENTER) self.sizer2.Add(ctl2, (iy,ix),(1,1), wx.EXPAND|wx.ADJUST_MINSIZE, 0) ctl2.Hide() ix +=1 #save data self.parameters.append([cb,ctl1,text2,ctl2]) # Units try: units = wx.StaticText(self, -1, self.model.details[item][0], style=wx.ALIGN_LEFT) except: units = wx.StaticText(self, -1, "", style=wx.ALIGN_LEFT) self.sizer2.Add(units, (iy,ix),(1,1), wx.EXPAND|wx.ADJUST_MINSIZE, 0) iy+=1 self.sizer2.Add((20,20),(iy,ix),(1,1), wx.LEFT|wx.EXPAND|wx.ADJUST_MINSIZE, 15) ix= 0 iy=1 if len(disp_list)>0: disp = wx.StaticText(self, -1, 'Dispersion') self.sizer5.Add(disp,( iy, ix),(1,1), wx.LEFT|wx.EXPAND|wx.ADJUST_MINSIZE, 15) ix += 1 values = wx.StaticText(self, -1, 'Values') self.sizer5.Add(values,( iy, ix),(1,1), wx.EXPAND|wx.ADJUST_MINSIZE, 0) #ix += 1 #disps = wx.StaticText(self, -1, 'Disp') #self.sizer5.Add(disps,( iy, ix),(1,1), wx.EXPAND|wx.ADJUST_MINSIZE, 0) #ix += 1 #npts = wx.StaticText(self, -1, 'npts') #self.sizer5.Add(npts,( iy, ix),(1,1), wx.EXPAND|wx.ADJUST_MINSIZE, 0) iy+=1 for item in disp_list: ix = 0 cb2 = wx.CheckBox(self, -1, item, (10, 10)) cb2.SetValue(False) self.sizer5.Add( cb2,( iy, ix),(1,1), wx.LEFT|wx.EXPAND|wx.ADJUST_MINSIZE, 15) wx.EVT_CHECKBOX(self, cb2.GetId(), self.select_param) ix += 1 value= self.model.getParam(item) ctl2 = wx.TextCtrl(self, -1, size=(_BOX_WIDTH,20), style=wx.TE_PROCESS_ENTER) ctl2.SetValue(str (format_number(value))) ctl2.Bind(wx.EVT_KILL_FOCUS, self._onparamEnter) ctl2.Bind(wx.EVT_TEXT_ENTER,self._onparamEnter) self.sizer5.Add(ctl2, (iy,ix),(1,1), wx.EXPAND|wx.ADJUST_MINSIZE, 0) iy += 1 #Display units text on panel for item in keys: if self.model.details[item][0]!='': self.text2_4.Show() break else: self.text2_4.Hide() #Disable or enable fit button if not (len(self.param_toFit ) >0): self.xmin.Disable() self.xmax.Disable() self.ymin.Disable() self.ymax.Disable() else: self.xmin.Enable() self.xmax.Enable() self.ymin.Enable() self.ymax.Enable() self.compute_chisqr() self.vbox.Layout() self.GrandParent.GetSizer().Layout() def _onparamEnter(self,event): """ when enter value on panel redraw model according to changed """ self.set_model_parameter() self.compute_chisqr() def set_model_parameter(self): """ this method redraws the model according to parameters values changes and the reset model according to paramaters changes """ if len(self.parameters) !=0 and self.model !=None: for item in self.parameters: try: name=str(item[0].GetLabelText()) value= float(item[1].GetValue()) self.model.setParam(name,value) except: wx.PostEvent(self.parent.GrandParent, StatusEvent(status=\ "Drawing Error:wrong value entered : %s"% sys.exc_value)) self.manager.redraw_model(float(self.xmin.GetValue())\ ,float(self.xmax.GetValue())) def select_all_param(self,event): """ set to true or false all checkBox given the main checkbox value cb1 """ self.param_toFit=[] if self.parameters !=[]: if self.cb1.GetValue()==True: for item in self.parameters: item[0].SetValue(True) list= [item[0],item[1],item[2],item[3]] self.param_toFit.append(list ) if not (len(self.param_toFit ) >0): self.xmin.Disable() self.xmax.Disable() self.ymin.Disable() self.ymax.Disable() else: self.xmin.Enable() self.xmax.Enable() self.ymin.Enable() self.ymax.Enable() else: for item in self.parameters: item[0].SetValue(False) self.param_toFit=[] self.xmin.Disable() self.xmax.Disable() self.ymin.Disable() self.ymax.Disable() def select_param(self,event): """ Select TextCtrl checked for fitting purpose and stores them in self.param_toFit=[] list """ self.param_toFit=[] for item in self.parameters: if item[0].GetValue()==True: list= [item[0],item[1],item[2],item[3]] self.param_toFit.append(list ) else: if item in self.param_toFit: self.param_toFit.remove(item) if len(self.parameters)==len(self.param_toFit): self.cb1.SetValue(True) else: self.cb1.SetValue(False) if not (len(self.param_toFit ) >0): self.xmin.Disable() self.xmax.Disable() self.ymin.Disable() self.ymax.Disable() else: self.xmin.Enable() self.xmax.Enable() self.ymin.Enable() self.ymax.Enable() def onsetValues(self,chisqr, out,cov): """ Build the panel from the fit result @param chisqr:Value of the goodness of fit metric @param out:list of parameter with the best value found during fitting @param cov:Covariance matrix """ #print "fitting : onsetvalues out",out self.tcChi.Clear() self.tcChi.SetValue(format_number(chisqr)) params = {} is_modified = False has_error = False if out.__class__==numpy.float64: self.param_toFit[0][1].SetValue(format_number(out)) self.param_toFit[0][1].Refresh() if cov !=None : self.text2_3.Show() self.param_toFit[0][2].Show() self.param_toFit[0][3].Clear() self.param_toFit[0][3].SetValue(format_number(cov[0])) self.param_toFit[0][3].Show() #out is a list : set parameters and errors in TextCtrl else: i=0 #print "fitpage: list param model",list #for item in self.param_toFit: # print "fitpage: list display",item[0].GetLabelText() for item in self.param_toFit: if( out != None ) and len(out)<=len(self.param_toFit)and i < len(out): #item[1].SetValue(format_number(out[i])) item[1].SetValue(format_number(self.model.getParam(item[0].GetLabelText()))) item[1].Refresh() if (cov !=None)and len(cov)<=len(self.param_toFit)and i < len(cov): self.text2_3.Show() item[2].Show() item[3].Clear() item[3].SetValue(format_number(cov[i])) item[3].Show() i+=1 self.vbox.Layout() self.GrandParent.GetSizer().Layout()