import wx.lib.newevent import matplotlib matplotlib.interactive(False) #Use the WxAgg back end. The Wx one takes too long to render matplotlib.use('WXAgg') from matplotlib.backends.backend_wxagg import FigureCanvasWxAgg from matplotlib.figure import Figure import os import fittings import transform from canvas import FigureCanvas from matplotlib.widgets import RectangleSelector from pylab import gca, gcf from plottables import Theory1D #TODO: make the plottables interactive from binder import BindArtist DEBUG = False from plottables import Graph #(FuncFitEvent, EVT_FUNC_FIT) = wx.lib.newevent.NewEvent() import math,pylab,re def show_tree(obj,d=0): """Handy function for displaying a tree of graph objects""" print "%s%s" % ("-"*d,obj.__class__.__name__) if 'get_children' in dir(obj): for a in obj.get_children(): show_tree(a,d+1) from unitConverter import UnitConvertion as convertUnit def _convertUnit(pow,unit): """ Displays the unit with the proper convertion @param pow: the user set the power of the unit @param unit: the unit of the data """ return unit toks=re.match("^", unit) if not toks==None: unitValue= re.split("{",unit) unitPower= re.split("}",unitValue[1]) power= int(unitPower[0])*pow word= unitValue[0]+"{"+str(power)+"}" if power==1: tempUnit=re.split("\^",unitValue[0]) unit=tempUnit[0] else: unit = word #print"this is unit",unit return unit def _rescale(lo,hi,step,pt=None,bal=None,scale='linear'): """ Rescale (lo,hi) by step, returning the new (lo,hi) The scaling is centered on pt, with positive values of step driving lo/hi away from pt and negative values pulling them in. If bal is given instead of point, it is already in [0,1] coordinates. This is a helper function for step-based zooming. """ # Convert values into the correct scale for a linear transformation # TODO: use proper scale transformers loprev = lo hiprev = hi ptprev = pt if scale=='log': assert lo >0 if lo > 0 : lo = math.log10(lo) if hi > 0 : hi = math.log10(hi) if pt is not None: pt = math.log10(pt) # Compute delta from axis range * %, or 1-% if persent is negative if step > 0: delta = float(hi-lo)*step/100 else: delta = float(hi-lo)*step/(100-step) # Add scale factor proportionally to the lo and hi values, preserving the # point under the mouse if bal is None: bal = float(pt-lo)/(hi-lo) lo = lo - bal*delta hi = hi + (1-bal)*delta # Convert transformed values back to the original scale if scale=='log': if (lo <= -250) or (hi >= 250): lo=loprev hi=hiprev else: lo,hi = math.pow(10.,lo),math.pow(10.,hi) return (lo,hi) class PlotPanel(wx.Panel): """ The PlotPanel has a Figure and a Canvas. OnSize events simply set a flag, and the actually redrawing of the figure is triggered by an Idle event. """ def __init__(self, parent, id = -1, color = None,\ dpi = None, **kwargs): wx.Panel.__init__(self, parent, id = id, **kwargs) self.parent = parent self.figure = Figure(None, dpi) #self.figure = pylab.Figure(None, dpi) #self.canvas = NoRepaintCanvas(self, -1, self.figure) self.canvas = FigureCanvas(self, -1, self.figure) self.SetColor(color) #self.Bind(wx.EVT_IDLE, self._onIdle) #self.Bind(wx.EVT_SIZE, self._onSize) self._resizeflag = True self._SetSize() self.subplot = self.figure.add_subplot(111) self.figure.subplots_adjust(left=.2, bottom=.2) self.yscale = 'linear' self.xscale = 'linear' sizer = wx.BoxSizer(wx.VERTICAL) sizer.Add(self.canvas,1,wx.EXPAND) self.SetSizer(sizer) # Graph object to manage the plottables self.graph = Graph() #self.Bind(EVT_FUNC_FIT, self.onFitRange) self.Bind(wx.EVT_CONTEXT_MENU, self.onContextMenu) #self.Bind(EVT_PROPERTY, self._onEVT_FUNC_PROPERTY) # Define some constants self.colorlist = ['b','g','r','c','m','y'] self.symbollist = ['o','x','^','v','<','>','+','s','d','D','h','H','p'] #User scale self.xLabel ="x" self.yLabel ="y" self.viewModel ="--" # keep track if the previous transformation of x and y in Property dialog self.prevXtrans ="x" self.prevYtrans ="y" self.canvas.mpl_connect('scroll_event',self.onWheel) #taking care of dragging self.canvas.mpl_connect('motion_notify_event',self.onMouseMotion) self.canvas.mpl_connect('button_press_event',self.onLeftDown) self.canvas.mpl_connect('button_release_event',self.onLeftUp) self.leftdown=False self.leftup=False self.mousemotion=False self.axes = [self.subplot] ## Fit dialog self._fit_dialog = None # Interactor self.connect = BindArtist(self.subplot.figure) #self.selected_plottable = None # new data for the fit self.fit_result = Theory1D(x=[], y=[], dy=None) #self.fit_result = Data1D(x=[], y=[],dx=None, dy=None) self.fit_result.name = "Fit" # For fit Dialog initial display self.xmin=0.0 self.xmax=0.0 self.xminView=0.0 self.xmaxView=0.0 self._scale_xlo = None self._scale_xhi = None self._scale_ylo = None self._scale_yhi = None self.Avalue=None self.Bvalue=None self.ErrAvalue=None self.ErrBvalue=None self.Chivalue=None # Dragging info self.begDrag=False self.xInit=None self.yInit=None self.xFinal=None self.yFinal=None # Default locations self._default_save_location = os.getcwd() def onLeftDown(self,event): """ left button down and ready to drag""" # Check that the LEFT button was pressed if event.button == 1: self.leftdown=True ax = event.inaxes if ax != None: self.xInit,self.yInit=event.xdata,event.ydata def onLeftUp(self,event): """ Dragging is done """ # Check that the LEFT button was released if event.button == 1: self.leftdown=False self.mousemotion=False self.leftup=True def onMouseMotion(self,event): """ check if the left button is press and the mouse in moving. computer delta for x and y coordinates and then calls draghelper to perform the drag """ self.mousemotion=True if self.leftdown==True and self.mousemotion==True: ax = event.inaxes if ax !=None:#the dragging is perform inside the figure self.xFinal,self.yFinal=event.xdata,event.ydata # Check whether this is the first point if self.xInit==None: self.xInit = self.xFinal self.yInit = self.yFinal xdelta = self.xFinal -self.xInit ydelta = self.yFinal -self.yInit if self.xscale=='log': xdelta = math.log10(self.xFinal) -math.log10(self.xInit) if self.yscale=='log': ydelta = math.log10(self.yFinal) -math.log10(self.yInit) self.dragHelper(xdelta,ydelta) else:# no dragging is perform elsewhere self.dragHelper(0,0) def _offset_graph(self): """ Zoom and offset the graph to the last known settings """ for ax in self.axes: if self._scale_xhi is not None and self._scale_xlo is not None: ax.set_xlim(self._scale_xlo, self._scale_xhi) if self._scale_yhi is not None and self._scale_ylo is not None: ax.set_ylim(self._scale_ylo, self._scale_yhi) def dragHelper(self,xdelta,ydelta): """ dragging occurs here""" # Event occurred inside a plotting area for ax in self.axes: lo,hi= ax.get_xlim() #print "x lo %f and x hi %f"%(lo,hi) newlo,newhi= lo- xdelta, hi- xdelta if self.xscale=='log': if lo > 0: newlo= math.log10(lo)-xdelta if hi > 0: newhi= math.log10(hi)-xdelta if self.xscale=='log': self._scale_xlo = math.pow(10,newlo) self._scale_xhi = math.pow(10,newhi) ax.set_xlim(math.pow(10,newlo),math.pow(10,newhi)) else: self._scale_xlo = newlo self._scale_xhi = newhi ax.set_xlim(newlo,newhi) #print "new lo %f and new hi %f"%(newlo,newhi) lo,hi= ax.get_ylim() #print "y lo %f and y hi %f"%(lo,hi) newlo,newhi= lo- ydelta, hi- ydelta if self.yscale=='log': if lo > 0: newlo= math.log10(lo)-ydelta if hi > 0: newhi= math.log10(hi)-ydelta #print "new lo %f and new hi %f"%(newlo,newhi) if self.yscale=='log': self._scale_ylo = math.pow(10,newlo) self._scale_yhi = math.pow(10,newhi) ax.set_ylim(math.pow(10,newlo),math.pow(10,newhi)) else: self._scale_ylo = newlo self._scale_yhi = newhi ax.set_ylim(newlo,newhi) self.canvas.draw_idle() def resetFitView(self): """ For fit Dialog initial display """ self.xmin=0.0 self.xmax=0.0 self.xminView=0.0 self.xmaxView=0.0 self._scale_xlo = None self._scale_xhi = None self._scale_ylo = None self._scale_yhi = None self.Avalue=None self.Bvalue=None self.ErrAvalue=None self.ErrBvalue=None self.Chivalue=None def onWheel(self, event): """ Process mouse wheel as zoom events @param event: Wheel event """ ax = event.inaxes step = event.step if ax != None: # Event occurred inside a plotting area lo,hi = ax.get_xlim() lo,hi = _rescale(lo,hi,step,pt=event.xdata,scale=ax.get_xscale()) if not self.xscale=='log' or lo>0: self._scale_xlo = lo self._scale_xhi = hi ax.set_xlim((lo,hi)) lo,hi = ax.get_ylim() lo,hi = _rescale(lo,hi,step,pt=event.ydata,scale=ax.get_yscale()) if not self.yscale=='log' or lo>0: self._scale_ylo = lo self._scale_yhi = hi ax.set_ylim((lo,hi)) else: # Check if zoom happens in the axes xdata,ydata = None,None x,y = event.x,event.y for ax in self.axes: insidex,_ = ax.xaxis.contains(event) if insidex: xdata,_ = ax.transAxes.inverse_xy_tup((x,y)) insidey,_ = ax.yaxis.contains(event) if insidey: _,ydata = ax.transAxes.inverse_xy_tup((x,y)) if xdata is not None: lo,hi = ax.get_xlim() lo,hi = _rescale(lo,hi,step,bal=xdata,scale=ax.get_xscale()) if not self.xscale=='log' or lo>0: self._scale_xlo = lo self._scale_xhi = hi ax.set_xlim((lo,hi)) if ydata is not None: lo,hi = ax.get_ylim() lo,hi = _rescale(lo,hi,step,bal=ydata,scale=ax.get_yscale()) if not self.yscale=='log' or lo>0: self._scale_ylo = lo self._scale_yhi = hi ax.set_ylim((lo,hi)) self.canvas.draw_idle() def returnTrans(self): """ Return values and labels used by Fit Dialog """ return self.xLabel,self.yLabel, self.Avalue, self.Bvalue,\ self.ErrAvalue,self.ErrBvalue,self.Chivalue def setTrans(self,xtrans,ytrans): """ @param xtrans: set x transformation on Property dialog @param ytrans: set y transformation on Property dialog """ self.prevXtrans =xtrans self.prevYtrans =ytrans def onFitting(self, event): """ when clicking on linear Fit on context menu , display Fitting Dialog """ list =[] list = self.graph.returnPlottable() from fitDialog import LinearFit if len(list.keys())>0: first_item = list.keys()[0] dlg = LinearFit( None, first_item, self.onFitDisplay,self.returnTrans, -1, 'Linear Fit') if (self.xmin !=0.0 )and ( self.xmax !=0.0)\ and(self.xminView !=0.0 )and ( self.xmaxView !=0.0): dlg.setFitRange(self.xminView,self.xmaxView,self.xmin,self.xmax) dlg.ShowModal() def linear_plottable_fit(self, plot): """ when clicking on linear Fit on context menu , display Fitting Dialog @param plot: PlotPanel owning the graph """ from fitDialog import LinearFit if self._fit_dialog is not None: return self._fit_dialog = LinearFit( None, plot, self.onFitDisplay,self.returnTrans, -1, 'Linear Fit') # Set the zoom area if self._scale_xhi is not None and self._scale_xlo is not None: self._fit_dialog.set_fit_region(self._scale_xlo, self._scale_xhi) # Register the close event self._fit_dialog.register_close(self._linear_fit_close) # Show a non-model dialog self._fit_dialog.Show() def _linear_fit_close(self): """ A fit dialog was closed """ self._fit_dialog = None def _onProperties(self, event): """ when clicking on Properties on context menu ,The Property dialog is displayed The user selects a transformation for x or y value and a new plot is displayed """ if self._fit_dialog is not None: self._fit_dialog.Destroy() self._fit_dialog = None list =[] list = self.graph.returnPlottable() if len(list.keys())>0: first_item = list.keys()[0] if first_item.x !=[]: from PropertyDialog import Properties dial = Properties(self, -1, 'Properties') dial.setValues( self.prevXtrans, self.prevYtrans,self.viewModel ) if dial.ShowModal() == wx.ID_OK: self.xLabel, self.yLabel,self.viewModel = dial.getValues() if self.viewModel =="Guinier lny vs x^(2)": self.xLabel="x^(2)" self.yLabel="ln(y)" self.viewModel = "--" dial.setValues( self.xLabel, self.yLabel,self.viewModel ) self._onEVT_FUNC_PROPERTY() dial.Destroy() def set_yscale(self, scale='linear'): """ Set the scale on Y-axis @param scale: the scale of y-axis """ self.subplot.set_yscale(scale) self.yscale = scale def get_yscale(self): """ @return: Y-axis scale """ return self.yscale def set_xscale(self, scale='linear'): """ Set the scale on x-axis @param scale: the scale of x-axis """ self.subplot.set_xscale(scale) self.xscale = scale def get_xscale(self): """ @return: x-axis scale """ return self.xscale def SetColor(self, rgbtuple): """Set figure and canvas colours to be the same""" if not rgbtuple: rgbtuple = wx.SystemSettings.GetColour(wx.SYS_COLOUR_BTNFACE).Get() col = [c/255.0 for c in rgbtuple] self.figure.set_facecolor(col) self.figure.set_edgecolor(col) self.canvas.SetBackgroundColour(wx.Colour(*rgbtuple)) def _onSize(self, event): self._resizeflag = True def _onIdle(self, evt): if self._resizeflag: self._resizeflag = False self._SetSize() self.draw() def _SetSize(self, pixels = None): """ This method can be called to force the Plot to be a desired size, which defaults to the ClientSize of the panel """ if not pixels: pixels = self.GetClientSize() self.canvas.SetSize(pixels) self.figure.set_size_inches(pixels[0]/self.figure.get_dpi(), pixels[1]/self.figure.get_dpi()) def draw(self): """Where the actual drawing happens""" self.figure.canvas.draw_idle() def onSaveImage(self, evt): #figure.savefig #print "Save image not implemented" path = None dlg = wx.FileDialog(self, "Choose a file", self._default_save_location, "", "*.png", wx.SAVE) if dlg.ShowModal() == wx.ID_OK: path = dlg.GetPath() self._default_save_location = os.path.dirname(path) dlg.Destroy() if not path == None: self.subplot.figure.savefig(path,dpi=300, facecolor='w', edgecolor='w', orentation='portrait', papertype=None, format='png') def onContextMenu(self, event): """ Default context menu for a plot panel """ # Slicer plot popup menu id = wx.NewId() slicerpop = wx.Menu() slicerpop.Append(id,'&Save image', 'Save image as PNG') wx.EVT_MENU(self, id, self.onSaveImage) #id = wx.NewId() #slicerpop.Append(id, '&Load 1D data file') #wx.EVT_MENU(self, id, self._onLoad1DData) id = wx.NewId() slicerpop.AppendSeparator() slicerpop.Append(id, '&Properties') wx.EVT_MENU(self, id, self._onProperties) id = wx.NewId() slicerpop.AppendSeparator() slicerpop.Append(id, '&Linear Fit') wx.EVT_MENU(self, id, self.onFitting) id = wx.NewId() slicerpop.AppendSeparator() slicerpop.Append(id, '&Reset Graph') wx.EVT_MENU(self, id, self.onResetGraph) pos = event.GetPosition() pos = self.ScreenToClient(pos) self.PopupMenu(slicerpop, pos) ## The following is plottable functionality def properties(self,prop): """Set some properties of the graph. The set of properties is not yet determined. """ # The particulars of how they are stored and manipulated (e.g., do # we want an inventory internally) is not settled. I've used a # property dictionary for now. # # How these properties interact with a user defined style file is # even less clear. # Properties defined by plot self.subplot.set_xlabel(r"$%s$" % prop["xlabel"]) self.subplot.set_ylabel(r"$%s$" % prop["ylabel"]) self.subplot.set_title(prop["title"]) # Properties defined by user #self.axes.grid(True) def clear(self): """Reset the plot""" # TODO: Redraw is brutal. Render to a backing store and swap in # TODO: rather than redrawing on the fly. self.subplot.clear() self.subplot.hold(True) def render(self): """Commit the plot after all objects are drawn""" # TODO: this is when the backing store should be swapped in. from matplotlib.font_manager import FontProperties self.subplot.legend(prop=FontProperties(size=10)) #self.subplot.legend() pass def xaxis(self,label,units): """xaxis label and units. Axis labels know about units. We need to do this so that we can detect when axes are not commesurate. Currently this is ignored other than for formatting purposes. """ if units != "": label = label + " (" + units + ")" self.subplot.set_xlabel(label) pass def yaxis(self,label,units): """yaxis label and units.""" if units != "": label = label + " (" + units + ")" self.subplot.set_ylabel(label) pass def _connect_to_xlim(self,callback): """Bind the xlim change notification to the callback""" def process_xlim(axes): lo,hi = subplot.get_xlim() callback(lo,hi) self.subplot.callbacks.connect('xlim_changed',process_xlim) #def connect(self,trigger,callback): # print "PlotPanel.connect???" # if trigger == 'xlim': self._connect_to_xlim(callback) def interactive_points(self,x,y,dx=None,dy=None,name='', color=0,symbol=0,label=None): """Draw markers with error bars""" self.subplot.set_yscale('linear') self.subplot.set_xscale('linear') from plottable_interactor import PointInteractor p = PointInteractor(self, self.subplot, zorder=3, id=name) p.points(x, y, dx=dx, dy=dy, color=color, symbol=symbol, label=label) self.subplot.set_yscale(self.yscale) self.subplot.set_xscale(self.xscale) def interactive_curve(self,x,y,dy=None,name='',color=0,symbol=0,label=None): """Draw markers with error bars""" self.subplot.set_yscale('linear') self.subplot.set_xscale('linear') from plottable_interactor import PointInteractor p = PointInteractor(self, self.subplot, zorder=4, id=name) p.curve(x, y, dy=dy, color=color, symbol=symbol, label=label) self.subplot.set_yscale(self.yscale) self.subplot.set_xscale(self.xscale) def plottable_selected(self, id): """ Called to register a plottable as selected """ #TODO: check that it really is in the list of plottables self.graph.selected_plottable = id def points(self,x,y,dx=None,dy=None,color=0,symbol=0,label=None): """Draw markers with error bars""" self.subplot.set_yscale('linear') self.subplot.set_xscale('linear') # Convert tuple (lo,hi) to array [(x-lo),(hi-x)] if dx != None and type(dx) == type(()): dx = nx.vstack((x-dx[0],dx[1]-x)).transpose() if dy != None and type(dy) == type(()): dy = nx.vstack((y-dy[0],dy[1]-y)).transpose() if dx==None and dy==None: h = self.subplot.plot(x,y,color=self._color(color), marker=self._symbol(symbol),linestyle='',label=label) else: col = self._color(color) self.subplot.errorbar(x, y, yerr=dy, xerr=None, ecolor=col, capsize=2,linestyle='', barsabove=False, mec=col, mfc=col, marker=self._symbol(symbol), lolims=False, uplims=False, xlolims=False, xuplims=False,label=label) self.subplot.set_yscale(self.yscale) self.subplot.set_xscale(self.xscale) def curve(self,x,y,dy=None,color=0,symbol=0,label=None): """Draw a line on a graph, possibly with confidence intervals.""" c = self._color(color) self.subplot.set_yscale('linear') self.subplot.set_xscale('linear') hlist = self.subplot.plot(x,y,color=c,marker='',linestyle='-',label=label) self.subplot.set_yscale(self.yscale) self.subplot.set_xscale(self.xscale) def _color(self,c): """Return a particular colour""" return self.colorlist[c%len(self.colorlist)] def _symbol(self,s): """Return a particular symbol""" return self.symbollist[s%len(self.symbollist)] def _replot(self, remove_fit=False): """ Rescale the plottables according to the latest user selection and update the plot @param remove_fit: Fit line will be removed if True """ self.graph.reset_scale() self._onEVT_FUNC_PROPERTY(remove_fit=remove_fit) #TODO: Why do we have to have the following line? self.fit_result.reset_view() self.graph.render(self) self.subplot.figure.canvas.draw_idle() def _onEVT_FUNC_PROPERTY(self, remove_fit=True): """ Receive the x and y transformation from myDialog,Transforms x and y in View and set the scale """ # The logic should be in the right order # Delete first, and then get the whole list... if remove_fit: self.graph.delete(self.fit_result) list =[] list = self.graph.returnPlottable() # Changing the scale might be incompatible with # currently displayed data (for instance, going # from ln to log when all plotted values have # negative natural logs). # Go linear and only change the scale at the end. self.set_xscale("linear") self.set_yscale("linear") _xscale = 'linear' _yscale = 'linear' for item in list: print item.name item.setLabel(self.xLabel,self.yLabel) if ( self.xLabel=="x" ): item.transformX(transform.toX,transform.errToX) name, units = item.get_xaxis() self.graph.xaxis("%s" % name, "%s" % units) if ( self.xLabel=="x^(2)" ): item.transformX(transform.toX2,transform.errToX2) name, units = item.get_xaxis() units=convertUnit(2,units) self.graph.xaxis("%s^{2}" % name, "%s" % units) if (self.xLabel=="log10(x)" ): item.transformX(transform.toX_pos,transform.errToX_pos) _xscale = 'log' name, units = item.get_xaxis() self.graph.xaxis("\log_{10}\ \ (%s)" % name, "%s" % units) if ( self.yLabel=="ln(y)" ): item.transformY(transform.toLogX,transform.errToLogX) name, units = item.get_yaxis() self.graph.yaxis("\log\ \ %s" % name, "%s" % units) if ( self.yLabel=="y" ): item.transformY(transform.toX,transform.errToX) name, units = item.get_yaxis() self.graph.yaxis("%s" % name, "%s" % units) if ( self.yLabel=="log10(y)" ): item.transformY(transform.toX_pos,transform.errToX_pos) _yscale = 'log' name, units = item.get_yaxis() self.graph.yaxis("\log_{10}\ \ (%s)" % name, "%s" % units) if ( self.yLabel=="y^(2)" ): item.transformY( transform.toX2,transform.errToX2 ) name, units = item.get_yaxis() units=convertUnit(2,units) self.graph.yaxis("%s^{2}" % name, "%s" % units) if ( self.yLabel =="1/y"): item.transformY(transform.toOneOverX,transform.errOneOverX ) name, units = item.get_yaxis() units=convertUnit(-1,units) self.graph.yaxis("1/%s" % name, "%s" % units) if ( self.yLabel =="1/sqrt(y)" ): item.transformY(transform.toOneOverSqrtX,transform.errOneOverSqrtX ) name, units = item.get_yaxis() units=convertUnit(-0.5,units) self.graph.yaxis("1/\sqrt{%s}" %name, "%s" % units) if ( self.yLabel =="ln(y*x)"): item.transformY( transform.toLogXY,transform.errToLogXY) yname, yunits = item.get_yaxis() xname, xunits = item.get_xaxis() self.graph.yaxis("\log\ (%s \ \ %s)" % (yname,xname), "%s%s" % (yunits,xunits)) if ( self.yLabel =="ln(y*x^(2))"): item.transformY( transform.toLogYX2,transform.errToLogYX2) yname, yunits = item.get_yaxis() xname, xunits = item.get_xaxis() xunits = convertUnit(2,xunits) self.graph.yaxis("\log (%s \ \ %s^{2})" % (yname,xname), "%s%s" % (yunits,xunits)) if ( self.yLabel =="ln(y*x^(4))"): item.transformY(transform.toLogYX4,transform.errToLogYX4) yname, yunits = item.get_yaxis() xname, xunits = item.get_xaxis() xunits = convertUnit(4,xunits) self.graph.yaxis("\log (%s \ \ %s^{4})" % (yname,xname), "%s%s" % (yunits,xunits)) if ( self.viewModel == "Guinier lny vs x^(2)"): item.transformX(transform.toX2,transform.errToX2) name, units = item.get_xaxis() units = convertUnit(2,units) self.graph.xaxis("%s^{2}" % name, "%s" % units) item.transformY(transform.toLogX,transform.errToLogX ) name, units = item.get_yaxis() self.graph.yaxis("\log\ \ %s" % name, "%s" % units) item.transformView() self.resetFitView() self.prevXtrans = self.xLabel self.prevYtrans = self.yLabel self.graph.render(self) self.set_xscale(_xscale) self.set_yscale(_yscale) self.subplot.figure.canvas.draw_idle() def onFitDisplay(self, tempx,tempy,xminView,xmaxView,xmin,xmax,func): """ Add a new plottable into the graph .In this case this plottable will be used to fit some data @param tempx: The x data of fit line @param tempy: The y data of fit line @param xminView: the lower bound of fitting range @param xminView: the upper bound of fitting range @param xmin: the lowest value of data to fit to the line @param xmax: the highest value of data to fit to the line """ # Saving value to redisplay in Fit Dialog when it is opened again self.Avalue,self.Bvalue,self.ErrAvalue,self.ErrBvalue,self.Chivalue=func self.xminView=xminView self.xmaxView=xmaxView self.xmin= xmin self.xmax= xmax #In case need to change the range of data plotted list =[] list = self.graph.returnPlottable() for item in list: #item.onFitRange(xminView,xmaxView) item.onFitRange(None,None) # Create new data plottable with result self.fit_result.x =[] self.fit_result.y =[] self.fit_result.x =tempx self.fit_result.y =tempy self.fit_result.dx=None self.fit_result.dy=None #Load the view with the new values self.fit_result.reset_view() # Add the new plottable to the graph self.graph.add(self.fit_result) self.graph.render(self) self._offset_graph() self.subplot.figure.canvas.draw_idle() def onResetGraph(self,event): """ Reset the graph by plotting the full range of data """ list =[] list = self.graph.returnPlottable() for item in list: item.onReset() self.graph.render(self) self.subplot.figure.canvas.draw_idle() class NoRepaintCanvas(FigureCanvasWxAgg): """We subclass FigureCanvasWxAgg, overriding the _onPaint method, so that the draw method is only called for the first two paint events. After that, the canvas will only be redrawn when it is resized. """ def __init__(self, *args, **kwargs): FigureCanvasWxAgg.__init__(self, *args, **kwargs) self._drawn = 0 def _onPaint(self, evt): """ Called when wxPaintEvt is generated """ if not self._isRealized: self.realize() if self._drawn < 2: self.draw(repaint = False) self._drawn += 1 self.gui_repaint(drawDC=wx.PaintDC(self))