1 | """ |
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2 | This software was developed by the University of Tennessee as part of the |
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3 | Distributed Data Analysis of Neutron Scattering Experiments (DANSE) |
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4 | project funded by the US National Science Foundation. |
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5 | |
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6 | See the license text in license.txt |
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7 | |
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8 | copyright 2008, University of Tennessee |
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9 | """ |
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10 | |
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11 | |
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12 | import wx |
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13 | import sys |
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14 | import danse.common.plottools |
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15 | from danse.common.plottools.PlotPanel import PlotPanel |
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16 | from danse.common.plottools.plottables import Graph,Data1D |
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17 | from sans.guicomm.events import EVT_NEW_PLOT |
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18 | from sans.guicomm.events import StatusEvent ,NewPlotEvent |
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19 | |
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20 | |
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21 | from SlicerParameters import SlicerEvent |
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22 | from binder import BindArtist |
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23 | (InternalEvent, EVT_INTERNAL) = wx.lib.newevent.NewEvent() |
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24 | #from SlicerParameters import SlicerEvent |
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25 | #(InternalEvent, EVT_INTERNAL) = wx.lib.newevent.NewEvent() |
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26 | DEFAULT_QMAX = 0.05 |
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27 | |
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28 | DEFAULT_QSTEP = 0.001 |
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29 | DEFAULT_BEAM = 0.005 |
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30 | BIN_WIDTH =1 |
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31 | import pylab |
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32 | |
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33 | class PanelMenu(wx.Menu): |
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34 | plots = None |
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35 | graph = None |
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36 | |
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37 | def set_plots(self, plots): |
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38 | self.plots = plots |
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39 | |
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40 | def set_graph(self, graph): |
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41 | self.graph = graph |
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42 | class ModelPanel1D(PlotPanel): |
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43 | """ |
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44 | Plot panel for use with the GUI manager |
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45 | """ |
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46 | |
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47 | ## Internal name for the AUI manager |
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48 | window_name = "plotpanel" |
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49 | ## Title to appear on top of the window |
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50 | window_caption = "Plot Panel" |
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51 | ## Flag to tell the GUI manager that this panel is not |
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52 | # tied to any perspective |
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53 | ALWAYS_ON = True |
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54 | ## Group ID |
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55 | group_id = None |
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56 | |
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57 | def __init__(self, parent, id = -1, color = None,\ |
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58 | dpi = None, style = wx.NO_FULL_REPAINT_ON_RESIZE, **kwargs): |
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59 | """ |
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60 | Initialize the panel |
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61 | """ |
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62 | PlotPanel.__init__(self, parent, id = id, style = style, **kwargs) |
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63 | |
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64 | ## Reference to the parent window |
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65 | self.parent = parent |
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66 | ## Plottables |
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67 | self.plots = {} |
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68 | |
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69 | ## Unique ID (from gui_manager) |
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70 | self.uid = None |
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71 | |
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72 | ## Action IDs for internal call-backs |
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73 | self.action_ids = {} |
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74 | |
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75 | ## Graph |
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76 | self.graph = Graph() |
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77 | self.graph.xaxis("\\rm{Q}", 'A^{-1}') |
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78 | self.graph.yaxis("\\rm{Intensity} ","cm^{-1}") |
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79 | self.graph.render(self) |
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80 | |
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81 | def _reset(self): |
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82 | """ |
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83 | Resets internal data and graph |
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84 | """ |
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85 | self.graph.reset() |
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86 | self.plots = {} |
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87 | self.action_ids = {} |
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88 | |
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89 | def _onEVT_1DREPLOT(self, event): |
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90 | """ |
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91 | Data is ready to be displayed |
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92 | @param event: data event |
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93 | """ |
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94 | |
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95 | #TODO: Check for existence of plot attribute |
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96 | |
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97 | # Check whether this is a replot. If we ask for a replot |
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98 | # and the plottable no longer exists, ignore the event. |
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99 | if hasattr(event, "update") and event.update==True \ |
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100 | and event.plot.name not in self.plots.keys(): |
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101 | return |
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102 | |
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103 | if hasattr(event, "reset"): |
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104 | self._reset() |
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105 | |
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106 | is_new = True |
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107 | if event.plot.name in self.plots.keys(): |
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108 | # Check whether the class of plottable changed |
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109 | if not event.plot.__class__==self.plots[event.plot.name].__class__: |
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110 | #overwrite a plottable using the same name |
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111 | self.graph.delete(self.plots[event.plot.name]) |
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112 | else: |
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113 | # plottable is already draw on the panel |
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114 | is_new = False |
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115 | |
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116 | |
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117 | |
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118 | if is_new: |
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119 | # a new plottable overwrites a plotted one using the same id |
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120 | for plottable in self.plots.itervalues(): |
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121 | if event.plot.id==plottable.id : |
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122 | self.graph.delete(plottable) |
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123 | |
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124 | self.plots[event.plot.name] = event.plot |
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125 | self.graph.add(self.plots[event.plot.name]) |
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126 | else: |
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127 | #replot the graph |
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128 | self.plots[event.plot.name].x = event.plot.x |
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129 | self.plots[event.plot.name].y = event.plot.y |
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130 | self.plots[event.plot.name].dy = event.plot.dy |
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131 | if hasattr(event.plot, 'dx') and hasattr(self.plots[event.plot.name], 'dx'): |
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132 | self.plots[event.plot.name].dx = event.plot.dx |
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133 | |
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134 | |
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135 | # Check axis labels |
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136 | #TODO: Should re-factor this |
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137 | #if event.plot._xunit != self.graph.prop["xunit"]: |
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138 | |
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139 | self.graph.xaxis(event.plot._xaxis, event.plot._xunit) |
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140 | |
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141 | #if event.plot._yunit != self.graph.prop["yunit"]: |
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142 | self.graph.yaxis(event.plot._yaxis, event.plot._yunit) |
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143 | |
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144 | # Set the view scale for all plots |
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145 | |
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146 | self._onEVT_FUNC_PROPERTY() |
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147 | |
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148 | self.graph.render(self) |
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149 | self.subplot.figure.canvas.draw_idle() |
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150 | |
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151 | def onLeftDown(self,event): |
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152 | """ left button down and ready to drag""" |
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153 | |
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154 | PlotPanel.onLeftDown(self, event) |
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155 | ax = event.inaxes |
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156 | if ax != None: |
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157 | position = "x: %8.3g y: %8.3g" % (event.xdata, event.ydata) |
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158 | wx.PostEvent(self.parent, StatusEvent(status=position)) |
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159 | |
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160 | def _onRemove(self, event): |
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161 | """ |
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162 | """ |
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163 | if not self.graph.selected_plottable == None: |
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164 | print self.graph.selected_plottable |
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165 | |
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166 | |
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167 | self.graph.delete(self.plots[self.graph.selected_plottable]) |
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168 | del self.plots[self.graph.selected_plottable] |
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169 | self.graph.render(self) |
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170 | self.subplot.figure.canvas.draw_idle() |
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171 | |
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172 | |
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173 | def onContextMenu(self, event): |
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174 | """ |
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175 | 1D plot context menu |
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176 | @param event: wx context event |
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177 | """ |
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178 | #slicerpop = wx.Menu() |
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179 | slicerpop = PanelMenu() |
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180 | slicerpop.set_plots(self.plots) |
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181 | slicerpop.set_graph(self.graph) |
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182 | |
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183 | # Option to save the data displayed |
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184 | |
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185 | #for plot in self.graph.plottables: |
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186 | if self.graph.selected_plottable in self.plots: |
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187 | plot = self.plots[self.graph.selected_plottable] |
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188 | id = wx.NewId() |
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189 | name = plot.name |
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190 | slicerpop.Append(id, "&Save %s points" % name) |
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191 | self.action_ids[str(id)] = plot |
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192 | wx.EVT_MENU(self, id, self._onSave) |
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193 | |
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194 | # Option to delete plottable |
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195 | id = wx.NewId() |
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196 | slicerpop.Append(id, "Remove %s curve" % name) |
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197 | self.action_ids[str(id)] = plot |
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198 | wx.EVT_MENU(self, id, self._onRemove) |
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199 | |
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200 | # Option to hide |
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201 | #TODO: implement functionality to hide a plottable (legend click) |
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202 | slicerpop.AppendSeparator() |
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203 | |
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204 | # Various plot options |
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205 | id = wx.NewId() |
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206 | slicerpop.Append(id,'&Save image', 'Save image as PNG') |
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207 | wx.EVT_MENU(self, id, self.onSaveImage) |
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208 | |
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209 | |
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210 | item_list = self.parent.get_context_menu(self.graph) |
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211 | if (not item_list==None) and (not len(item_list)==0): |
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212 | slicerpop.AppendSeparator() |
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213 | for item in item_list: |
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214 | try: |
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215 | id = wx.NewId() |
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216 | slicerpop.Append(id, item[0], item[1]) |
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217 | wx.EVT_MENU(self, id, item[2]) |
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218 | except: |
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219 | print sys.exc_value |
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220 | print RuntimeError, "View1DPanel.onContextMenu: bad menu item" |
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221 | |
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222 | slicerpop.AppendSeparator() |
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223 | |
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224 | if self.graph.selected_plottable in self.plots: |
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225 | if self.plots[self.graph.selected_plottable].__class__.__name__=="Theory1D": |
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226 | id = wx.NewId() |
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227 | slicerpop.Append(id, '&Add errors to data') |
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228 | #print "panel scale before ",self.xLabel, self.yLabel |
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229 | #print "cyllinder before adding error", self.plots[self.graph.selected_plottable].x |
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230 | wx.EVT_MENU(self, id, self._on_add_errors) |
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231 | else: |
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232 | id = wx.NewId() |
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233 | slicerpop.Append(id, '&Linear fit') |
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234 | wx.EVT_MENU(self, id, self.onFitting) |
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235 | |
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236 | |
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237 | |
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238 | id = wx.NewId() |
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239 | slicerpop.Append(id, '&Change scale') |
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240 | wx.EVT_MENU(self, id, self._onProperties) |
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241 | |
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242 | id = wx.NewId() |
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243 | #slicerpop.AppendSeparator() |
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244 | slicerpop.Append(id, '&Reset Graph') |
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245 | wx.EVT_MENU(self, id, self.onResetGraph) |
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246 | |
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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 | def _on_add_errors(self, evt): |
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253 | """ |
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254 | Compute reasonable errors for a data set without |
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255 | errors and transorm the plottable to a Data1D |
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256 | """ |
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257 | import math |
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258 | import numpy |
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259 | import time |
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260 | |
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261 | if not self.graph.selected_plottable == None: |
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262 | length = len(self.plots[self.graph.selected_plottable].x) |
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263 | dy = numpy.zeros(length) |
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264 | for i in range(length): |
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265 | dy[i] = math.sqrt(self.plots[self.graph.selected_plottable].y[i]) |
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266 | |
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267 | new_plot = Data1D(self.plots[self.graph.selected_plottable].x, |
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268 | self.plots[self.graph.selected_plottable].y, |
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269 | dy=dy) |
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270 | new_plot.interactive = True |
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271 | new_plot.name = self.plots[self.graph.selected_plottable].name |
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272 | if hasattr(self.plots[self.graph.selected_plottable], "group_id"): |
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273 | new_plot.group_id = self.plots[self.graph.selected_plottable].group_id |
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274 | new_plot.id = self.plots[self.graph.selected_plottable].id |
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275 | else: |
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276 | new_plot.group_id = str(time.time()) |
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277 | new_plot.id = str(time.time()) |
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278 | |
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279 | label, unit = self.plots[self.graph.selected_plottable].get_xaxis() |
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280 | new_plot.xaxis(label, unit) |
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281 | label, unit = self.plots[self.graph.selected_plottable].get_yaxis() |
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282 | new_plot.yaxis(label, unit) |
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283 | #print "panel scale ",self.xLabel, self.yLabel |
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284 | self.graph.delete(self.plots[self.graph.selected_plottable]) |
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285 | |
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286 | self.graph.add(new_plot) |
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287 | # transforming the view of the new data into the same of the previous data |
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288 | self._onEVT_FUNC_PROPERTY() |
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289 | #print "cyllinder", self.plots[self.graph.selected_plottable].x,self.plots[self.graph.selected_plottable].view.x, new_plot.x, new_plot.view.x |
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290 | self.plots[self.graph.selected_plottable]=new_plot |
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291 | |
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292 | self.graph.render(self) |
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293 | self.subplot.figure.canvas.draw_idle() |
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294 | |
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295 | def _onSave(self, evt): |
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296 | """ |
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297 | Save a data set to a text file |
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298 | @param evt: Menu event |
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299 | """ |
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300 | import os |
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301 | id = str(evt.GetId()) |
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302 | if id in self.action_ids: |
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303 | |
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304 | path = None |
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305 | dlg = wx.FileDialog(self, "Choose a file", os.getcwd(), "", "*.txt", wx.SAVE) |
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306 | if dlg.ShowModal() == wx.ID_OK: |
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307 | path = dlg.GetPath() |
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308 | mypath = os.path.basename(path) |
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309 | print path |
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310 | dlg.Destroy() |
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311 | |
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312 | if not path == None: |
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313 | out = open(path, 'w') |
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314 | has_errors = True |
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315 | if self.action_ids[id].dy==None or self.action_ids[id].dy==[]: |
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316 | has_errors = False |
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317 | |
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318 | # Sanity check |
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319 | if has_errors: |
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320 | try: |
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321 | if len(self.action_ids[id].y) != len(self.action_ids[id].dy): |
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322 | print "Y and dY have different lengths" |
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323 | has_errors = False |
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324 | except: |
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325 | has_errors = False |
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326 | |
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327 | if has_errors: |
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328 | out.write("<X> <Y> <dY>\n") |
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329 | else: |
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330 | out.write("<X> <Y>\n") |
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331 | |
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332 | for i in range(len(self.action_ids[id].x)): |
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333 | if has_errors: |
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334 | out.write("%g %g %g\n" % (self.action_ids[id].x[i], |
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335 | self.action_ids[id].y[i], |
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336 | self.action_ids[id].dy[i])) |
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337 | else: |
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338 | out.write("%g %g\n" % (self.action_ids[id].x[i], |
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339 | self.action_ids[id].y[i])) |
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340 | |
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341 | out.close() |
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342 | |
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343 | |
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344 | def _onToggleScale(self, event): |
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345 | if self.get_yscale() == 'log': |
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346 | self.set_yscale('linear') |
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347 | else: |
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348 | self.set_yscale('log') |
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349 | self.subplot.figure.canvas.draw_idle() |
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350 | |
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