[52b1f77] | 1 | import wx.lib.newevent |
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[2bf92f2] | 2 | import matplotlib |
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| 3 | matplotlib.interactive(False) |
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| 4 | #Use the WxAgg back end. The Wx one takes too long to render |
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| 5 | matplotlib.use('WXAgg') |
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| 6 | from matplotlib.backends.backend_wxagg import FigureCanvasWxAgg |
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| 7 | from matplotlib.figure import Figure |
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| 8 | import os |
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[52b1f77] | 9 | import fittings |
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[2bf92f2] | 10 | from canvas import FigureCanvas |
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| 11 | #TODO: make the plottables interactive |
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| 12 | |
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[52b1f77] | 13 | from plottables import Graph |
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| 14 | #(FuncFitEvent, EVT_FUNC_FIT) = wx.lib.newevent.NewEvent() |
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| 15 | import math,pylab |
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[2bf92f2] | 16 | def show_tree(obj,d=0): |
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| 17 | """Handy function for displaying a tree of graph objects""" |
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| 18 | print "%s%s" % ("-"*d,obj.__class__.__name__) |
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| 19 | if 'get_children' in dir(obj): |
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| 20 | for a in obj.get_children(): show_tree(a,d+1) |
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| 21 | |
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| 22 | |
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| 23 | |
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| 24 | class PlotPanel(wx.Panel): |
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| 25 | """ |
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| 26 | The PlotPanel has a Figure and a Canvas. OnSize events simply set a |
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| 27 | flag, and the actually redrawing of the |
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| 28 | figure is triggered by an Idle event. |
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| 29 | """ |
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| 30 | def __init__(self, parent, id = -1, color = None,\ |
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| 31 | dpi = None, **kwargs): |
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| 32 | wx.Panel.__init__(self, parent, id = id, **kwargs) |
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[52b1f77] | 33 | self.parent = parent |
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[2bf92f2] | 34 | self.figure = Figure(None, dpi) |
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| 35 | #self.figure = pylab.Figure(None, dpi) |
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| 36 | #self.canvas = NoRepaintCanvas(self, -1, self.figure) |
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| 37 | self.canvas = FigureCanvas(self, -1, self.figure) |
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| 38 | self.SetColor(color) |
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| 39 | #self.Bind(wx.EVT_IDLE, self._onIdle) |
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| 40 | #self.Bind(wx.EVT_SIZE, self._onSize) |
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| 41 | self._resizeflag = True |
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| 42 | self._SetSize() |
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| 43 | self.subplot = self.figure.add_subplot(111) |
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| 44 | self.figure.subplots_adjust(left=.2, bottom=.2) |
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| 45 | self.yscale = 'linear' |
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[52b1f77] | 46 | self.xscale = 'linear' |
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[2bf92f2] | 47 | sizer = wx.BoxSizer(wx.VERTICAL) |
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| 48 | sizer.Add(self.canvas,1,wx.EXPAND) |
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| 49 | self.SetSizer(sizer) |
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| 50 | |
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[057210c] | 51 | # Graph object to manage the plottables |
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| 52 | self.graph = Graph() |
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[52b1f77] | 53 | #self.Bind(EVT_FUNC_FIT, self.onFitRange) |
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[2bf92f2] | 54 | self.Bind(wx.EVT_CONTEXT_MENU, self.onContextMenu) |
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[52b1f77] | 55 | #self.Bind(EVT_PROPERTY, self._onEVT_FUNC_PROPERTY) |
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[2bf92f2] | 56 | # Define some constants |
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| 57 | self.colorlist = ['b','g','r','c','m','y'] |
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| 58 | self.symbollist = ['o','x','^','v','<','>','+','s','d','D','h','H','p'] |
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[52b1f77] | 59 | #User scale |
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| 60 | self.xscales ="" |
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| 61 | self.yscales ="" |
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[e2914b1] | 62 | # keep track if the previous transformation of x and y in Property dialog |
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| 63 | self.prevXtrans =" " |
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| 64 | self.prevYtrans =" " |
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| 65 | |
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| 66 | def setTrans(self,xtrans,ytrans): |
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| 67 | """ |
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| 68 | @param xtrans: set x transformation on Property dialog |
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| 69 | @param ytrans: set y transformation on Property dialog |
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| 70 | """ |
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| 71 | self.prevXtrans =xtrans |
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| 72 | self.prevYtrans =ytrans |
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[52b1f77] | 73 | |
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| 74 | def onFitting(self, event): |
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[e2914b1] | 75 | """ |
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| 76 | when clicking on linear Fit on context menu , display Fitting Dialog |
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| 77 | """ |
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[52b1f77] | 78 | list =[] |
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| 79 | list = self.graph.returnPlottable() |
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| 80 | from fitDialog import LinearFit |
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| 81 | print len(list) |
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| 82 | if len(list.keys())>0: |
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| 83 | first_item = list.keys()[0] |
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| 84 | print first_item, list[first_item].__class__.__name__ |
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| 85 | dlg = LinearFit( None, first_item, self.onFitDisplay, -1, 'Fitting') |
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| 86 | dlg.ShowModal() |
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| 87 | |
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| 88 | def _onProperties(self, event): |
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[e2914b1] | 89 | """ |
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| 90 | when clicking on Properties on context menu ,The Property dialog is displayed |
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| 91 | The user selects a transformation for x or y value and a new plot is displayed |
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| 92 | """ |
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[52b1f77] | 93 | from PropertyDialog import Properties |
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| 94 | dial = Properties(self, -1, 'Properties') |
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[e2914b1] | 95 | dial.setValues( self.prevXtrans, self.prevYtrans ) |
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[52b1f77] | 96 | if dial.ShowModal() == wx.ID_OK: |
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| 97 | self.xscales, self.yscales = dial.getValues() |
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| 98 | self._onEVT_FUNC_PROPERTY() |
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| 99 | dial.Destroy() |
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| 100 | |
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| 101 | def toX(self,x): |
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[e2914b1] | 102 | """ |
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| 103 | This function is used to load value on Plottable.View |
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| 104 | @param x: Float value |
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| 105 | @return x, |
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| 106 | """ |
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[52b1f77] | 107 | return x |
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| 108 | |
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| 109 | def toX2(self,x): |
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| 110 | """ |
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[e2914b1] | 111 | This function is used to load value on Plottable.View |
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[52b1f77] | 112 | Calculate x^(2) |
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| 113 | @param x: float value |
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| 114 | """ |
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[1d40f44] | 115 | return x*x |
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[e2914b1] | 116 | |
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[52b1f77] | 117 | def fromX2(self,x): |
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| 118 | """ |
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[e2914b1] | 119 | This function is used to load value on Plottable.View |
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[52b1f77] | 120 | Calculate square root of x |
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| 121 | @param x: float value |
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| 122 | """ |
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[e2914b1] | 123 | if not x >=0 : |
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| 124 | raise ValueError, "square root of a negative value " |
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[52b1f77] | 125 | else: |
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[e2914b1] | 126 | return math.sqrt(x) |
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| 127 | |
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| 128 | def toLogXY(self,x,y): |
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[52b1f77] | 129 | """ |
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[e2914b1] | 130 | This function is used to load value on Plottable.View |
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[52b1f77] | 131 | calculate log x |
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| 132 | @param x: float value |
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| 133 | """ |
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[e2914b1] | 134 | if not x*y > 0: |
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| 135 | raise ValueError, "Log(X*Y)of a negative value " |
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[52b1f77] | 136 | else: |
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[e2914b1] | 137 | return math.log(x*y) |
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| 138 | |
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[52b1f77] | 139 | def fromLogXY(self,x): |
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| 140 | """ |
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[e2914b1] | 141 | This function is used to load value on Plottable.View |
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[52b1f77] | 142 | Calculate e^(x) |
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| 143 | @param x: float value |
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| 144 | """ |
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[e2914b1] | 145 | return math.exp(x*y) |
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[52b1f77] | 146 | |
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[2bf92f2] | 147 | def set_yscale(self, scale='linear'): |
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[e2914b1] | 148 | """ |
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| 149 | Set the scale on Y-axis |
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| 150 | @param scale: the scale of y-axis |
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| 151 | """ |
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[2bf92f2] | 152 | self.subplot.set_yscale(scale) |
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| 153 | self.yscale = scale |
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| 154 | |
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| 155 | def get_yscale(self): |
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[e2914b1] | 156 | """ |
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| 157 | @return: Y-axis scale |
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| 158 | """ |
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[2bf92f2] | 159 | return self.yscale |
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[52b1f77] | 160 | |
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| 161 | def set_xscale(self, scale='linear'): |
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[e2914b1] | 162 | """ |
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| 163 | Set the scale on x-axis |
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| 164 | @param scale: the scale of x-axis |
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| 165 | """ |
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[52b1f77] | 166 | self.subplot.set_xscale(scale) |
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| 167 | self.xscale = scale |
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[e2914b1] | 168 | |
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[52b1f77] | 169 | def get_xscale(self): |
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[e2914b1] | 170 | """ |
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| 171 | @return: x-axis scale |
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| 172 | """ |
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[52b1f77] | 173 | return self.xscale |
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[2bf92f2] | 174 | |
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| 175 | def SetColor(self, rgbtuple): |
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| 176 | """Set figure and canvas colours to be the same""" |
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| 177 | if not rgbtuple: |
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| 178 | rgbtuple = wx.SystemSettings.GetColour(wx.SYS_COLOUR_BTNFACE).Get() |
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| 179 | col = [c/255.0 for c in rgbtuple] |
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| 180 | self.figure.set_facecolor(col) |
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| 181 | self.figure.set_edgecolor(col) |
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| 182 | self.canvas.SetBackgroundColour(wx.Colour(*rgbtuple)) |
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| 183 | |
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| 184 | def _onSize(self, event): |
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| 185 | self._resizeflag = True |
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| 186 | |
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| 187 | def _onIdle(self, evt): |
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| 188 | if self._resizeflag: |
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| 189 | self._resizeflag = False |
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| 190 | self._SetSize() |
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| 191 | self.draw() |
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| 192 | |
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| 193 | def _SetSize(self, pixels = None): |
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| 194 | """ |
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| 195 | This method can be called to force the Plot to be a desired size, which defaults to |
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| 196 | the ClientSize of the panel |
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| 197 | """ |
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| 198 | if not pixels: |
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| 199 | pixels = self.GetClientSize() |
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| 200 | self.canvas.SetSize(pixels) |
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| 201 | self.figure.set_size_inches(pixels[0]/self.figure.get_dpi(), |
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| 202 | pixels[1]/self.figure.get_dpi()) |
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| 203 | |
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| 204 | def draw(self): |
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| 205 | """Where the actual drawing happens""" |
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| 206 | self.figure.canvas.draw_idle() |
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| 207 | |
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| 208 | |
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| 209 | |
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| 210 | def onSaveImage(self, evt): |
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| 211 | #figure.savefig |
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| 212 | print "Save image not implemented" |
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| 213 | path = None |
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| 214 | dlg = wx.FileDialog(self, "Choose a file", os.getcwd(), "", "*.png", wx.SAVE) |
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| 215 | if dlg.ShowModal() == wx.ID_OK: |
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| 216 | path = dlg.GetPath() |
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| 217 | mypath = os.path.basename(path) |
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| 218 | print path |
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| 219 | dlg.Destroy() |
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| 220 | if not path == None: |
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| 221 | self.subplot.figure.savefig(path,dpi=300, facecolor='w', edgecolor='w', |
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| 222 | orentation='portrait', papertype=None, format='png') |
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| 223 | |
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| 224 | def onContextMenu(self, event): |
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| 225 | """ |
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| 226 | Default context menu for a plot panel |
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| 227 | """ |
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| 228 | # Slicer plot popup menu |
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| 229 | slicerpop = wx.Menu() |
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| 230 | slicerpop.Append(313,'&Save image', 'Save image as PNG') |
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| 231 | wx.EVT_MENU(self, 313, self.onSaveImage) |
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[52b1f77] | 232 | slicerpop.Append(316, '&Load 1D data file') |
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| 233 | |
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| 234 | wx.EVT_MENU(self, 314, self.onSave1DData) |
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| 235 | wx.EVT_MENU(self, 316, self._onLoad1DData) |
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| 236 | slicerpop.AppendSeparator() |
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| 237 | slicerpop.Append(315, '&Properties') |
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| 238 | |
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| 239 | slicerpop.AppendSeparator() |
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| 240 | slicerpop.Append(317, '&Linear Fit') |
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| 241 | |
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| 242 | wx.EVT_MENU(self, 314, self.onSave1DData) |
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| 243 | wx.EVT_MENU(self, 316, self._onLoad1DData) |
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| 244 | wx.EVT_MENU(self, 315, self._onProperties) |
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| 245 | wx.EVT_MENU(self, 317, self.onFitting) |
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| 246 | |
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[2bf92f2] | 247 | pos = event.GetPosition() |
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| 248 | pos = self.ScreenToClient(pos) |
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| 249 | self.PopupMenu(slicerpop, pos) |
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| 250 | |
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| 251 | |
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| 252 | ## The following is plottable functionality |
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| 253 | |
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| 254 | |
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| 255 | def properties(self,prop): |
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| 256 | """Set some properties of the graph. |
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| 257 | |
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| 258 | The set of properties is not yet determined. |
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| 259 | """ |
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| 260 | # The particulars of how they are stored and manipulated (e.g., do |
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| 261 | # we want an inventory internally) is not settled. I've used a |
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| 262 | # property dictionary for now. |
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| 263 | # |
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| 264 | # How these properties interact with a user defined style file is |
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| 265 | # even less clear. |
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| 266 | |
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| 267 | # Properties defined by plot |
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| 268 | self.subplot.set_xlabel(r"$%s$" % prop["xlabel"]) |
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| 269 | self.subplot.set_ylabel(r"$%s$" % prop["ylabel"]) |
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| 270 | self.subplot.set_title(prop["title"]) |
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| 271 | |
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| 272 | # Properties defined by user |
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| 273 | #self.axes.grid(True) |
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| 274 | |
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| 275 | def clear(self): |
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| 276 | """Reset the plot""" |
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| 277 | |
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| 278 | # TODO: Redraw is brutal. Render to a backing store and swap in |
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| 279 | # TODO: rather than redrawing on the fly. |
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| 280 | self.subplot.clear() |
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| 281 | self.subplot.hold(True) |
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| 282 | |
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| 283 | |
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| 284 | def render(self): |
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| 285 | """Commit the plot after all objects are drawn""" |
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| 286 | # TODO: this is when the backing store should be swapped in. |
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| 287 | from matplotlib.font_manager import FontProperties |
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| 288 | self.subplot.legend(prop=FontProperties(size=10)) |
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| 289 | #self.subplot.legend() |
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| 290 | pass |
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| 291 | |
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| 292 | def xaxis(self,label,units): |
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| 293 | """xaxis label and units. |
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| 294 | |
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| 295 | Axis labels know about units. |
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| 296 | |
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| 297 | We need to do this so that we can detect when axes are not |
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| 298 | commesurate. Currently this is ignored other than for formatting |
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| 299 | purposes. |
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| 300 | """ |
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| 301 | if units != "": label = label + " (" + units + ")" |
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| 302 | self.subplot.set_xlabel(label) |
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| 303 | pass |
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| 304 | |
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| 305 | def yaxis(self,label,units): |
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| 306 | """yaxis label and units.""" |
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| 307 | if units != "": label = label + " (" + units + ")" |
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| 308 | self.subplot.set_ylabel(label) |
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| 309 | pass |
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| 310 | |
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| 311 | def _connect_to_xlim(self,callback): |
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| 312 | """Bind the xlim change notification to the callback""" |
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| 313 | def process_xlim(axes): |
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| 314 | lo,hi = subplot.get_xlim() |
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| 315 | callback(lo,hi) |
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| 316 | self.subplot.callbacks.connect('xlim_changed',process_xlim) |
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| 317 | |
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| 318 | #def connect(self,trigger,callback): |
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| 319 | # print "PlotPanel.connect???" |
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| 320 | # if trigger == 'xlim': self._connect_to_xlim(callback) |
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| 321 | |
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| 322 | def points(self,x,y,dx=None,dy=None,color=0,symbol=0,label=None): |
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| 323 | """Draw markers with error bars""" |
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| 324 | self.subplot.set_yscale('linear') |
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[52b1f77] | 325 | self.subplot.set_xscale('linear') |
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[2bf92f2] | 326 | # Convert tuple (lo,hi) to array [(x-lo),(hi-x)] |
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| 327 | if dx != None and type(dx) == type(()): |
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| 328 | dx = nx.vstack((x-dx[0],dx[1]-x)).transpose() |
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| 329 | if dy != None and type(dy) == type(()): |
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| 330 | dy = nx.vstack((y-dy[0],dy[1]-y)).transpose() |
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| 331 | |
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| 332 | if dx==None and dy==None: |
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| 333 | h = self.subplot.plot(x,y,color=self._color(color), |
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| 334 | marker=self._symbol(symbol),linestyle='',label=label) |
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| 335 | else: |
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| 336 | self.subplot.errorbar(x, y, yerr=dy, xerr=None, |
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[52b1f77] | 337 | ecolor=self._color(color), capsize=2,linestyle='', barsabove=False, |
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[2bf92f2] | 338 | marker=self._symbol(symbol), |
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| 339 | lolims=False, uplims=False, |
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[52b1f77] | 340 | xlolims=False, xuplims=False,label=label) |
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[2bf92f2] | 341 | |
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| 342 | self.subplot.set_yscale(self.yscale) |
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[52b1f77] | 343 | self.subplot.set_xscale(self.xscale) |
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[2bf92f2] | 344 | |
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| 345 | def curve(self,x,y,dy=None,color=0,symbol=0,label=None): |
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| 346 | """Draw a line on a graph, possibly with confidence intervals.""" |
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| 347 | c = self._color(color) |
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| 348 | self.subplot.set_yscale('linear') |
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[52b1f77] | 349 | self.subplot.set_xscale('linear') |
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[2bf92f2] | 350 | |
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| 351 | hlist = self.subplot.plot(x,y,color=c,marker='',linestyle='-',label=label) |
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| 352 | |
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| 353 | self.subplot.set_yscale(self.yscale) |
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[52b1f77] | 354 | self.subplot.set_xscale(self.xscale) |
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[2bf92f2] | 355 | |
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| 356 | def _color(self,c): |
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| 357 | """Return a particular colour""" |
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| 358 | return self.colorlist[c%len(self.colorlist)] |
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| 359 | |
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| 360 | def _symbol(self,s): |
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| 361 | """Return a particular symbol""" |
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| 362 | return self.symbollist[s%len(self.symbollist)] |
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[52b1f77] | 363 | |
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| 364 | def _onEVT_FUNC_PROPERTY(self): |
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| 365 | """ |
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[8cebf9b] | 366 | Receive the x and y transformation from myDialog,Transforms x and y in View |
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| 367 | and set the scale |
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[52b1f77] | 368 | """ |
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| 369 | list =[] |
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| 370 | list = self.graph.returnPlottable() |
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| 371 | for item in list: |
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| 372 | if ( self.xscales=="x" ): |
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[8cebf9b] | 373 | item.transform_x( self.toX, self.errFunctoX ) |
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[52b1f77] | 374 | self.set_xscale("linear") |
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| 375 | self.graph.xaxis('\\rm{q} ', 'A^{-1}') |
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| 376 | |
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| 377 | if ( self.xscales=="x^(2)" ): |
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[b6b9d76] | 378 | item.transform_x( self.toX2, self.errFuncToX2 ) |
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[52b1f77] | 379 | self.set_xscale('linear') |
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| 380 | self.graph.xaxis('\\rm{q^{2}} ', 'A^{-2}') |
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| 381 | |
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| 382 | if (self.xscales=="Log(x)" ): |
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[2da23bc] | 383 | item.transform_x( self.toX, self.errFuncToLogX ) |
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[8cebf9b] | 384 | self.set_xscale("log") |
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| 385 | self.graph.xaxis('\\rm{q} ', 'A^{-1}') |
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[52b1f77] | 386 | |
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| 387 | if ( self.yscales=="y" ): |
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[2da23bc] | 388 | item.transform_y( self.toX, self.errFunctoX ) |
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[52b1f77] | 389 | self.set_yscale("linear") |
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| 390 | self.graph.yaxis("\\rm{Intensity} ","cm^{-1}") |
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| 391 | |
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[b6b9d76] | 392 | if ( self.yscales=="Log(y)" ): |
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[2da23bc] | 393 | item.transform_y( self.toX, self.errFuncToLogX) |
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[52b1f77] | 394 | self.set_yscale("log") |
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| 395 | self.graph.yaxis("\\rm{Intensity} ","cm^{-1}") |
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| 396 | |
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| 397 | if ( self.yscales=="y^(2)" ): |
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[b6b9d76] | 398 | item.transform_y( self.toX2, self.errFuncToX2 ) |
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[52b1f77] | 399 | self.set_yscale("linear") |
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| 400 | self.graph.yaxis("\\rm{Intensity^{2}} ","cm^{-2}") |
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[1d40f44] | 401 | |
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[52b1f77] | 402 | self.prevXtrans = self.xscales |
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| 403 | self.prevYtrans = self.yscales |
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[1d40f44] | 404 | |
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[52b1f77] | 405 | self.graph.render(self) |
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| 406 | self.subplot.figure.canvas.draw_idle() |
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[8cebf9b] | 407 | def errFunctoX(self,x,dx=None): |
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| 408 | """ |
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| 409 | calculate error of x**2 |
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| 410 | @param x: float value |
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| 411 | @param dx: float value |
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| 412 | """ |
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| 413 | if dx >=x: |
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| 414 | return 0.9*x |
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[b6b9d76] | 415 | if dx==None: |
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| 416 | return 0 |
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[8cebf9b] | 417 | return dx |
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[e2914b1] | 418 | def errFuncToX2(self,x,dx=None): |
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[52b1f77] | 419 | """ |
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[e2914b1] | 420 | calculate error of x**2 |
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[52b1f77] | 421 | @param x: float value |
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[e2914b1] | 422 | @param dx: float value |
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[52b1f77] | 423 | """ |
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[1d40f44] | 424 | if dx != None: |
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[8cebf9b] | 425 | err = 2*x*dx |
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| 426 | if err >= x: |
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| 427 | err = 0.9*x |
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| 428 | return err |
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[52b1f77] | 429 | else: |
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[8cebf9b] | 430 | return 0.0 |
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[e2914b1] | 431 | def errFuncfromX2(self,x,dx=None): |
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| 432 | """ |
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| 433 | calculate error of sqrt(x) |
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| 434 | @param x: float value |
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| 435 | @param dx: float value |
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| 436 | """ |
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[1d40f44] | 437 | if (x > 0): |
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| 438 | if(dx != None): |
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| 439 | err = dx/(2*math.sqrt(x)) |
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| 440 | else: |
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| 441 | err = 0 |
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[8cebf9b] | 442 | if err >= x: |
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[1d40f44] | 443 | err = 0.9*x |
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| 444 | else: |
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[8cebf9b] | 445 | err = 0.9*x |
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[1d40f44] | 446 | |
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[8cebf9b] | 447 | return err |
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| 448 | |
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[e2914b1] | 449 | def errFuncToLogX(self,x,dx=None): |
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| 450 | """ |
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| 451 | calculate error of Log(xy) |
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| 452 | @param x: float value |
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| 453 | @param dx: float value |
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| 454 | """ |
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[b6b9d76] | 455 | if x!=0: |
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| 456 | if dx==None: |
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[1d40f44] | 457 | #err = 1/x |
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| 458 | err = 0 |
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[b6b9d76] | 459 | else: |
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| 460 | err = dx/x |
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[e2914b1] | 461 | if err >= x: |
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| 462 | err = 0.9*x |
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| 463 | else: |
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[b6b9d76] | 464 | err = 0.9*x |
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| 465 | |
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| 466 | return err |
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[e2914b1] | 467 | |
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| 468 | def errFuncfromLogXY(self,x,dx=None): |
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| 469 | """ |
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[1d40f44] | 470 | calculate error of Log(xy) |
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[e2914b1] | 471 | @param x: float value |
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| 472 | @param dx: float value |
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| 473 | """ |
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[1d40f44] | 474 | return |
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| 475 | |
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[e2914b1] | 476 | |
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[52b1f77] | 477 | def onFitDisplay(self, plottable): |
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[e2914b1] | 478 | """ |
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| 479 | Add a new plottable into the graph .In this case this plottable will be used |
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| 480 | to fit some data |
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| 481 | @param plottable: the plottable to plot |
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| 482 | """ |
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[52b1f77] | 483 | self.graph.add(plottable) |
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| 484 | self.graph.render(self) |
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| 485 | self.subplot.figure.canvas.draw_idle() |
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| 486 | |
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[2bf92f2] | 487 | |
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| 488 | class NoRepaintCanvas(FigureCanvasWxAgg): |
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| 489 | """We subclass FigureCanvasWxAgg, overriding the _onPaint method, so that |
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| 490 | the draw method is only called for the first two paint events. After that, |
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| 491 | the canvas will only be redrawn when it is resized. |
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| 492 | """ |
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| 493 | def __init__(self, *args, **kwargs): |
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| 494 | FigureCanvasWxAgg.__init__(self, *args, **kwargs) |
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| 495 | self._drawn = 0 |
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| 496 | |
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| 497 | def _onPaint(self, evt): |
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| 498 | """ |
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| 499 | Called when wxPaintEvt is generated |
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| 500 | """ |
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| 501 | if not self._isRealized: |
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| 502 | self.realize() |
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| 503 | if self._drawn < 2: |
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| 504 | self.draw(repaint = False) |
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| 505 | self._drawn += 1 |
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| 506 | self.gui_repaint(drawDC=wx.PaintDC(self)) |
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| 507 | |
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