1 | from PyQt4 import QtGui |
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2 | |
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3 | import matplotlib.pyplot as plt |
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4 | from matplotlib.font_manager import FontProperties |
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5 | |
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6 | from sas.sasgui.guiframe.dataFitting import Data1D |
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7 | from sas.sasgui.plottools import transform |
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8 | from sas.sasgui.plottools.convert_units import convert_unit |
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9 | from sas.qtgui.PlotterBase import PlotterBase |
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10 | from sas.qtgui.AddText import AddText |
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11 | from sas.qtgui.SetGraphRange import SetGraphRange |
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12 | |
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13 | class PlotterWidget(PlotterBase): |
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14 | """ |
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15 | 1D Plot widget for use with a QDialog |
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16 | """ |
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17 | def __init__(self, parent=None, manager=None, quickplot=False): |
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18 | super(PlotterWidget, self).__init__(parent, manager=manager, quickplot=quickplot) |
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19 | self.parent = parent |
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20 | self.addText = AddText(self) |
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21 | |
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22 | @property |
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23 | def data(self): |
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24 | return self._data |
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25 | |
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26 | @data.setter |
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27 | def data(self, value): |
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28 | """ data setter """ |
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29 | self._data = value |
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30 | self.xLabel = "%s(%s)"%(value._xaxis, value._xunit) |
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31 | self.yLabel = "%s(%s)"%(value._yaxis, value._yunit) |
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32 | self.title(title=value.title) |
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33 | |
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34 | def plot(self, data=None, marker=None, linestyle=None, hide_error=False): |
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35 | """ |
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36 | Plot self._data |
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37 | """ |
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38 | # Data1D |
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39 | if isinstance(data, Data1D): |
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40 | self.data = data |
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41 | assert(self._data) |
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42 | |
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43 | # Shortcut for an axis |
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44 | ax = self.ax |
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45 | |
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46 | if marker == None: |
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47 | marker = 'o' |
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48 | |
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49 | if linestyle == None: |
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50 | linestyle = '' |
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51 | |
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52 | # plot data with/without errorbars |
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53 | if hide_error: |
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54 | ax.plot(self._data.view.x, self._data.view.y, |
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55 | marker=marker, |
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56 | linestyle=linestyle, |
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57 | label=self._title, |
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58 | picker=True) |
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59 | else: |
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60 | ax.errorbar(self._data.view.x, self._data.view.y, |
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61 | yerr=self._data.view.dx, xerr=None, |
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62 | capsize=2, linestyle='', |
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63 | barsabove=False, |
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64 | marker=marker, |
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65 | lolims=False, uplims=False, |
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66 | xlolims=False, xuplims=False, |
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67 | label=self._title, |
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68 | picker=True) |
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69 | |
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70 | # Now add the legend with some customizations. |
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71 | self.legend = ax.legend(loc='upper right', shadow=True) |
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72 | #self.legend.get_frame().set_alpha(0.4) |
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73 | self.legend.set_picker(True) |
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74 | |
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75 | # Current labels for axes |
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76 | ax.set_ylabel(self.y_label) |
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77 | ax.set_xlabel(self.x_label) |
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78 | |
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79 | # Title only for regular charts |
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80 | if not self.quickplot: |
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81 | ax.set_title(label=self._title) |
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82 | |
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83 | # Include scaling (log vs. linear) |
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84 | ax.set_xscale(self.xscale) |
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85 | ax.set_yscale(self.yscale) |
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86 | |
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87 | # define the ranges |
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88 | self.setRange = SetGraphRange(parent=self, |
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89 | x_range=self.ax.get_xlim(), y_range=self.ax.get_ylim()) |
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90 | |
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91 | # refresh canvas |
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92 | self.canvas.draw() |
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93 | |
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94 | def contextMenu(self): |
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95 | """ |
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96 | Define common context menu and associated actions for the MPL widget |
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97 | """ |
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98 | self.defaultContextMenu() |
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99 | |
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100 | # Additional menu items |
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101 | self.contextMenu.addSeparator() |
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102 | self.actionModifyGraphAppearance =\ |
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103 | self.contextMenu.addAction("Modify Graph Appearance") |
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104 | self.contextMenu.addSeparator() |
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105 | self.actionAddText = self.contextMenu.addAction("Add Text") |
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106 | self.actionRemoveText = self.contextMenu.addAction("Remove Text") |
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107 | self.contextMenu.addSeparator() |
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108 | self.actionChangeScale = self.contextMenu.addAction("Change Scale") |
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109 | self.contextMenu.addSeparator() |
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110 | self.actionSetGraphRange = self.contextMenu.addAction("Set Graph Range") |
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111 | self.actionResetGraphRange =\ |
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112 | self.contextMenu.addAction("Reset Graph Range") |
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113 | # Add the title change for dialogs |
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114 | if self.parent: |
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115 | self.contextMenu.addSeparator() |
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116 | self.actionWindowTitle = self.contextMenu.addAction("Window Title") |
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117 | |
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118 | # Define the callbacks |
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119 | self.actionModifyGraphAppearance.triggered.connect(self.onModifyGraph) |
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120 | self.actionAddText.triggered.connect(self.onAddText) |
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121 | self.actionRemoveText.triggered.connect(self.onRemoveText) |
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122 | self.actionChangeScale.triggered.connect(self.onScaleChange) |
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123 | self.actionSetGraphRange.triggered.connect(self.onSetGraphRange) |
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124 | self.actionResetGraphRange.triggered.connect(self.onResetGraphRange) |
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125 | self.actionWindowTitle.triggered.connect(self.onWindowsTitle) |
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126 | |
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127 | def contextMenuQuickPlot(self): |
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128 | """ |
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129 | Define context menu and associated actions for the quickplot MPL widget |
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130 | """ |
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131 | # Default actions |
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132 | self.defaultContextMenu() |
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133 | |
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134 | # Additional actions |
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135 | self.actionToggleGrid = self.contextMenu.addAction("Toggle Grid On/Off") |
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136 | self.contextMenu.addSeparator() |
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137 | self.actionChangeScale = self.contextMenu.addAction("Change Scale") |
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138 | |
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139 | # Define the callbacks |
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140 | self.actionToggleGrid.triggered.connect(self.onGridToggle) |
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141 | self.actionChangeScale.triggered.connect(self.onScaleChange) |
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142 | |
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143 | def onScaleChange(self): |
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144 | """ |
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145 | Show a dialog allowing axes rescaling |
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146 | """ |
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147 | if self.properties.exec_() == QtGui.QDialog.Accepted: |
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148 | xLabel, yLabel = self.properties.getValues() |
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149 | self.xyTransform(xLabel, yLabel) |
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150 | |
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151 | def onModifyGraph(self): |
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152 | """ |
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153 | Show a dialog allowing chart manipulations |
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154 | """ |
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155 | print ("onModifyGraph") |
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156 | pass |
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157 | |
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158 | def onAddText(self): |
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159 | """ |
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160 | Show a dialog allowing adding custom text to the chart |
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161 | """ |
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162 | if self.addText.exec_() == QtGui.QDialog.Accepted: |
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163 | # Retrieve the new text, its font and color |
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164 | extra_text = self.addText.text() |
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165 | extra_font = self.addText.font() |
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166 | extra_color = self.addText.color() |
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167 | |
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168 | # Place the text on the screen at (0,0) |
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169 | pos_x = self.x_click |
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170 | pos_y = self.y_click |
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171 | |
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172 | # Map QFont onto MPL font |
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173 | mpl_font = FontProperties() |
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174 | mpl_font.set_size(int(extra_font.pointSize())) |
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175 | mpl_font.set_family(str(extra_font.family())) |
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176 | mpl_font.set_weight(int(extra_font.weight())) |
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177 | # MPL style names |
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178 | styles = ['normal', 'italic', 'oblique'] |
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179 | # QFont::Style maps directly onto the above |
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180 | try: |
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181 | mpl_font.set_style(styles[extra_font.style()]) |
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182 | except: |
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183 | pass |
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184 | |
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185 | if len(extra_text) > 0: |
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186 | new_text = self.ax.text(str(pos_x), |
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187 | str(pos_y), |
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188 | extra_text, |
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189 | color=extra_color, |
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190 | fontproperties=mpl_font) |
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191 | # Update the list of annotations |
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192 | self.textList.append(new_text) |
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193 | self.canvas.draw_idle() |
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194 | |
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195 | def onRemoveText(self): |
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196 | """ |
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197 | Remove the most recently added text |
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198 | """ |
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199 | num_text = len(self.textList) |
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200 | if num_text < 1: |
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201 | return |
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202 | txt = self.textList[num_text - 1] |
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203 | text_remove = txt.get_text() |
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204 | txt.remove() |
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205 | self.textList.remove(txt) |
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206 | |
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207 | self.canvas.draw_idle() |
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208 | |
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209 | def onSetGraphRange(self): |
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210 | """ |
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211 | Show a dialog allowing setting the chart ranges |
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212 | """ |
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213 | # min and max of data |
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214 | if self.setRange.exec_() == QtGui.QDialog.Accepted: |
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215 | x_range = self.setRange.xrange() |
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216 | y_range = self.setRange.yrange() |
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217 | if x_range is not None and y_range is not None: |
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218 | self.ax.set_xlim(x_range) |
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219 | self.ax.set_ylim(y_range) |
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220 | self.canvas.draw_idle() |
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221 | |
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222 | def onResetGraphRange(self): |
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223 | """ |
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224 | Resets the chart X and Y ranges to their original values |
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225 | """ |
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226 | x_range = (self.data.x.min(), self.data.x.max()) |
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227 | y_range = (self.data.y.min(), self.data.y.max()) |
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228 | if x_range is not None and y_range is not None: |
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229 | self.ax.set_xlim(x_range) |
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230 | self.ax.set_ylim(y_range) |
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231 | self.canvas.draw_idle() |
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232 | |
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233 | def xyTransform(self, xLabel="", yLabel=""): |
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234 | """ |
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235 | Transforms x and y in View and set the scale |
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236 | """ |
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237 | # Clear the plot first |
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238 | plt.cla() |
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239 | self.ax.cla() |
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240 | |
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241 | # Changing the scale might be incompatible with |
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242 | # currently displayed data (for instance, going |
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243 | # from ln to log when all plotted values have |
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244 | # negative natural logs). |
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245 | # Go linear and only change the scale at the end. |
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246 | self._xscale = "linear" |
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247 | self._yscale = "linear" |
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248 | _xscale = 'linear' |
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249 | _yscale = 'linear' |
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250 | # Local data is either 1D or 2D |
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251 | if self.data.id == 'fit': |
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252 | return |
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253 | |
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254 | # control axis labels from the panel itself |
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255 | yname, yunits = self.data.get_yaxis() |
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256 | xname, xunits = self.data.get_xaxis() |
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257 | |
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258 | # Goes through all possible scales |
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259 | # self.x_label is already wrapped with Latex "$", so using the argument |
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260 | |
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261 | # X |
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262 | if xLabel == "x": |
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263 | self.data.transformX(transform.toX, transform.errToX) |
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264 | self.xLabel = "%s(%s)" % (xname, xunits) |
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265 | if xLabel == "x^(2)": |
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266 | self.data.transformX(transform.toX2, transform.errToX2) |
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267 | xunits = convert_unit(2, xunits) |
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268 | self.xLabel = "%s^{2}(%s)" % (xname, xunits) |
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269 | if xLabel == "x^(4)": |
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270 | self.data.transformX(transform.toX4, transform.errToX4) |
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271 | xunits = convert_unit(4, xunits) |
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272 | self.xLabel = "%s^{4}(%s)" % (xname, xunits) |
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273 | if xLabel == "ln(x)": |
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274 | self.data.transformX(transform.toLogX, transform.errToLogX) |
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275 | self.xLabel = "\ln{(%s)}(%s)" % (xname, xunits) |
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276 | if xLabel == "log10(x)": |
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277 | self.data.transformX(transform.toX_pos, transform.errToX_pos) |
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278 | _xscale = 'log' |
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279 | self.xLabel = "%s(%s)" % (xname, xunits) |
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280 | if xLabel == "log10(x^(4))": |
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281 | self.data.transformX(transform.toX4, transform.errToX4) |
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282 | xunits = convert_unit(4, xunits) |
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283 | self.xLabel = "%s^{4}(%s)" % (xname, xunits) |
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284 | _xscale = 'log' |
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285 | |
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286 | # Y |
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287 | if yLabel == "ln(y)": |
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288 | self.data.transformY(transform.toLogX, transform.errToLogX) |
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289 | self.yLabel = "\ln{(%s)}(%s)" % (yname, yunits) |
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290 | if yLabel == "y": |
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291 | self.data.transformY(transform.toX, transform.errToX) |
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292 | self.yLabel = "%s(%s)" % (yname, yunits) |
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293 | if yLabel == "log10(y)": |
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294 | self.data.transformY(transform.toX_pos, transform.errToX_pos) |
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295 | _yscale = 'log' |
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296 | self.yLabel = "%s(%s)" % (yname, yunits) |
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297 | if yLabel == "y^(2)": |
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298 | self.data.transformY(transform.toX2, transform.errToX2) |
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299 | yunits = convert_unit(2, yunits) |
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300 | self.yLabel = "%s^{2}(%s)" % (yname, yunits) |
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301 | if yLabel == "1/y": |
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302 | self.data.transformY(transform.toOneOverX, transform.errOneOverX) |
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303 | yunits = convert_unit(-1, yunits) |
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304 | self.yLabel = "1/%s(%s)" % (yname, yunits) |
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305 | if yLabel == "y*x^(2)": |
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306 | self.data.transformY(transform.toYX2, transform.errToYX2) |
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307 | xunits = convert_unit(2, xunits) |
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308 | self.yLabel = "%s \ \ %s^{2}(%s%s)" % (yname, xname, yunits, xunits) |
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309 | if yLabel == "y*x^(4)": |
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310 | self.data.transformY(transform.toYX4, transform.errToYX4) |
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311 | xunits = convert_unit(4, xunits) |
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312 | self.yLabel = "%s \ \ %s^{4}(%s%s)" % (yname, xname, yunits, xunits) |
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313 | if yLabel == "1/sqrt(y)": |
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314 | self.data.transformY(transform.toOneOverSqrtX, |
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315 | transform.errOneOverSqrtX) |
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316 | yunits = convert_unit(-0.5, yunits) |
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317 | self.yLabel = "1/\sqrt{%s}(%s)" % (yname, yunits) |
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318 | if yLabel == "ln(y*x)": |
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319 | self.data.transformY(transform.toLogXY, transform.errToLogXY) |
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320 | self.yLabel = "\ln{(%s \ \ %s)}(%s%s)" % (yname, xname, yunits, xunits) |
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321 | if yLabel == "ln(y*x^(2))": |
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322 | self.data.transformY(transform.toLogYX2, transform.errToLogYX2) |
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323 | xunits = convert_unit(2, xunits) |
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324 | self.yLabel = "\ln (%s \ \ %s^{2})(%s%s)" % (yname, xname, yunits, xunits) |
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325 | if yLabel == "ln(y*x^(4))": |
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326 | self.data.transformY(transform.toLogYX4, transform.errToLogYX4) |
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327 | xunits = convert_unit(4, xunits) |
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328 | self.yLabel = "\ln (%s \ \ %s^{4})(%s%s)" % (yname, xname, yunits, xunits) |
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329 | if yLabel == "log10(y*x^(4))": |
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330 | self.data.transformY(transform.toYX4, transform.errToYX4) |
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331 | xunits = convert_unit(4, xunits) |
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332 | _yscale = 'log' |
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333 | self.yLabel = "%s \ \ %s^{4}(%s%s)" % (yname, xname, yunits, xunits) |
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334 | |
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335 | # Perform the transformation of data in data1d->View |
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336 | self.data.transformView() |
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337 | |
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338 | self.xscale = _xscale |
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339 | self.yscale = _yscale |
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340 | |
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341 | # Plot the updated chart |
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342 | self.plot(marker='o', linestyle='') |
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343 | |
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344 | |
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345 | class Plotter(QtGui.QDialog, PlotterWidget): |
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346 | def __init__(self, parent=None, quickplot=False): |
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347 | |
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348 | QtGui.QDialog.__init__(self) |
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349 | PlotterWidget.__init__(self, manager=parent, quickplot=quickplot) |
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350 | icon = QtGui.QIcon() |
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351 | icon.addPixmap(QtGui.QPixmap(":/res/ball.ico"), QtGui.QIcon.Normal, QtGui.QIcon.Off) |
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352 | self.setWindowIcon(icon) |
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353 | |
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354 | |
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