1 | """ |
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2 | Boxsum Class: determine 2 rectangular area to compute |
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3 | the sum of pixel of a Data. |
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4 | """ |
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5 | import numpy |
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6 | from PyQt4 import QtGui |
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7 | from PyQt4 import QtCore |
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8 | from sas.qtgui.Utilities.GuiUtils import formatNumber |
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9 | |
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10 | from BaseInteractor import BaseInteractor |
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11 | from sas.sascalc.dataloader.manipulations import Boxavg |
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12 | from sas.sascalc.dataloader.manipulations import Boxsum |
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13 | |
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14 | from sas.qtgui.Plotting.SlicerModel import SlicerModel |
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15 | |
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16 | |
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17 | class BoxSumCalculator(BaseInteractor): |
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18 | """ |
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19 | Boxsum Class: determine 2 rectangular area to compute |
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20 | the sum of pixel of a Data. |
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21 | Uses PointerInteractor , VerticalDoubleLine,HorizontalDoubleLine. |
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22 | @param zorder: Artists with lower zorder values are drawn first. |
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23 | @param x_min: the minimum value of the x coordinate |
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24 | @param x_max: the maximum value of the x coordinate |
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25 | @param y_min: the minimum value of the y coordinate |
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26 | @param y_max: the maximum value of the y coordinate |
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27 | |
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28 | """ |
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29 | def __init__(self, base, axes, color='black', zorder=3): |
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30 | BaseInteractor.__init__(self, base, axes, color=color) |
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31 | |
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32 | # list of Boxsmun markers |
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33 | self.markers = [] |
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34 | self.axes = axes |
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35 | self._model = None |
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36 | self.update_model = False |
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37 | |
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38 | # connect the artist for the motion |
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39 | self.connect = self.base.connect |
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40 | |
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41 | # when qmax is reached the selected line is reset the its previous value |
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42 | self.qmax = min(self.base.data.xmax, self.base.data.xmin) |
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43 | |
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44 | # Define the boxsum limits |
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45 | self.xmin = -1 * 0.5 * min(numpy.fabs(self.base.data.xmax), |
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46 | numpy.fabs(self.base.data.xmin)) |
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47 | self.ymin = -1 * 0.5 * min(numpy.fabs(self.base.data.xmax), |
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48 | numpy.fabs(self.base.data.xmin)) |
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49 | self.xmax = 0.5 * min(numpy.fabs(self.base.data.xmax), |
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50 | numpy.fabs(self.base.data.xmin)) |
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51 | self.ymax = 0.5 * min(numpy.fabs(self.base.data.xmax), |
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52 | numpy.fabs(self.base.data.xmin)) |
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53 | # center of the boxSum |
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54 | self.center_x = 0.0002 |
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55 | self.center_y = 0.0003 |
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56 | # Number of points on the plot |
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57 | self.nbins = 20 |
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58 | # Define initial result the summation |
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59 | self.count = 0 |
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60 | self.error = 0 |
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61 | self.total = 0 |
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62 | self.totalerror = 0 |
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63 | self.points = 0 |
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64 | # Flag to determine if the current figure has moved |
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65 | # set to False == no motion , set to True== motion |
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66 | self.has_move = False |
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67 | # Create Boxsum edges |
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68 | self.horizontal_lines = HorizontalDoubleLine(self, |
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69 | self.axes, |
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70 | color='blue', |
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71 | zorder=zorder, |
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72 | y=self.ymax, |
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73 | x=self.xmax, |
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74 | center_x=self.center_x, |
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75 | center_y=self.center_y) |
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76 | self.horizontal_lines.qmax = self.qmax |
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77 | |
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78 | self.vertical_lines = VerticalDoubleLine(self, |
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79 | self.axes, |
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80 | color='black', |
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81 | zorder=zorder, |
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82 | y=self.ymax, |
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83 | x=self.xmax, |
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84 | center_x=self.center_x, |
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85 | center_y=self.center_y) |
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86 | self.vertical_lines.qmax = self.qmax |
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87 | |
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88 | self.center = PointInteractor(self, |
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89 | self.axes, color='grey', |
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90 | zorder=zorder, |
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91 | center_x=self.center_x, |
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92 | center_y=self.center_y) |
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93 | # Save the name of the slicer panel associate with this slicer |
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94 | self.panel_name = "" |
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95 | # Update and post slicer parameters |
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96 | self.update_model = False |
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97 | self.update() |
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98 | self.postData() |
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99 | |
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100 | # set up the model |
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101 | self._model = QtGui.QStandardItemModel(1, 9) |
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102 | self.setModelFromParams() |
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103 | self.update_model = True |
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104 | self._model.itemChanged.connect(self.setParamsFromModel) |
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105 | |
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106 | def setModelFromParams(self): |
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107 | """ |
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108 | Set up the Qt model for data handling between controls |
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109 | """ |
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110 | parameters = self.getParams() |
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111 | # Crete/overwrite model items |
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112 | self._model.setData(self._model.index(0, 0), |
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113 | QtCore.QVariant(formatNumber(parameters['Height']))) |
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114 | self._model.setData(self._model.index(0, 1), |
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115 | QtCore.QVariant(formatNumber(parameters['Width']))) |
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116 | self._model.setData(self._model.index(0, 2), |
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117 | QtCore.QVariant(formatNumber(parameters['center_x']))) |
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118 | self._model.setData(self._model.index(0, 3), |
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119 | QtCore.QVariant(formatNumber(parameters['center_y']))) |
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120 | |
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121 | self.setReadOnlyParametersFromModel() |
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122 | |
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123 | def model(self): |
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124 | ''' model accessor ''' |
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125 | return self._model |
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126 | |
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127 | def setReadOnlyParametersFromModel(self): |
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128 | """ |
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129 | Cast model content onto "read-only" subset of parameters |
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130 | """ |
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131 | parameters = self.getParams() |
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132 | self._model.setData(self._model.index(0, 4), |
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133 | QtCore.QVariant(formatNumber(parameters['avg']))) |
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134 | self._model.setData(self._model.index(0, 5), |
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135 | QtCore.QVariant(formatNumber(parameters['avg_error']))) |
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136 | self._model.setData(self._model.index(0, 6), |
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137 | QtCore.QVariant(formatNumber(parameters['sum']))) |
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138 | self._model.setData(self._model.index(0, 7), |
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139 | QtCore.QVariant(formatNumber(parameters['sum_error']))) |
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140 | self._model.setData(self._model.index(0, 8), |
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141 | QtCore.QVariant(formatNumber(parameters['num_points']))) |
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142 | |
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143 | def setParamsFromModel(self): |
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144 | """ |
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145 | Cast model content onto params dict |
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146 | """ |
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147 | params = {} |
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148 | params["Height"] = float(self.model().item(0, 0).text()) |
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149 | params["Width"] = float(self.model().item(0, 1).text()) |
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150 | params["center_x"] = float(self.model().item(0, 2).text()) |
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151 | params["center_y"] = float(self.model().item(0, 3).text()) |
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152 | self.update_model = False |
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153 | self.setParams(params) |
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154 | self.setReadOnlyParametersFromModel() |
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155 | self.update_model = True |
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156 | |
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157 | def setPanelName(self, name): |
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158 | """ |
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159 | Store the name of the panel associated to this slicer |
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160 | @param name: the name of this panel |
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161 | """ |
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162 | self.panel_name = name |
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163 | |
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164 | def setLayer(self, n): |
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165 | """ |
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166 | Allow adding plot to the same panel |
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167 | :param n: the number of layer |
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168 | """ |
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169 | self.layernum = n |
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170 | self.update() |
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171 | |
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172 | def clear(self): |
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173 | """ |
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174 | Clear the slicer and all connected events related to this slicer |
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175 | """ |
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176 | self.clear_markers() |
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177 | self.horizontal_lines.clear() |
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178 | self.vertical_lines.clear() |
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179 | self.center.clear() |
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180 | self.base.connect.clearall() |
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181 | |
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182 | def update(self): |
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183 | """ |
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184 | Respond to changes in the model by recalculating the profiles and |
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185 | resetting the widgets. |
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186 | """ |
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187 | # check if the center point has moved and update the figure accordingly |
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188 | if self.center.has_move: |
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189 | self.center.update() |
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190 | self.horizontal_lines.update(center=self.center) |
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191 | self.vertical_lines.update(center=self.center) |
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192 | # check if the horizontal lines have moved and |
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193 | # update the figure accordingly |
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194 | if self.horizontal_lines.has_move: |
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195 | self.horizontal_lines.update() |
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196 | self.vertical_lines.update(y1=self.horizontal_lines.y1, |
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197 | y2=self.horizontal_lines.y2, |
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198 | height=self.horizontal_lines.half_height) |
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199 | # check if the vertical lines have moved and |
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200 | # update the figure accordingly |
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201 | if self.vertical_lines.has_move: |
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202 | self.vertical_lines.update() |
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203 | self.horizontal_lines.update(x1=self.vertical_lines.x1, |
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204 | x2=self.vertical_lines.x2, |
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205 | width=self.vertical_lines.half_width) |
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206 | |
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207 | def save(self, ev): |
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208 | """ |
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209 | Remember the roughness for this layer and the next so that we |
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210 | can restore on Esc. |
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211 | """ |
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212 | self.horizontal_lines.save(ev) |
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213 | self.vertical_lines.save(ev) |
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214 | self.center.save(ev) |
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215 | |
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216 | def postData(self): |
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217 | """ |
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218 | Get the limits of the boxsum and compute the sum of the pixel |
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219 | contained in that region and the error on that sum |
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220 | """ |
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221 | # the region of the summation |
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222 | x_min = self.horizontal_lines.x2 |
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223 | x_max = self.horizontal_lines.x1 |
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224 | y_min = self.vertical_lines.y2 |
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225 | y_max = self.vertical_lines.y1 |
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226 | #computation of the sum and its error |
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227 | box = Boxavg(x_min=x_min, x_max=x_max, y_min=y_min, y_max=y_max) |
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228 | self.count, self.error = box(self.base.data) |
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229 | # Dig out number of points summed, SMK & PDB, 04/03/2013 |
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230 | boxtotal = Boxsum(x_min=x_min, x_max=x_max, y_min=y_min, y_max=y_max) |
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231 | self.total, self.totalerror, self.points = boxtotal(self.base.data) |
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232 | if self.update_model: |
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233 | self.setModelFromParams() |
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234 | self.draw() |
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235 | |
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236 | def moveend(self, ev): |
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237 | """ |
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238 | After a dragging motion this function is called to compute |
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239 | the error and the sum of pixel of a given data 2D |
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240 | """ |
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241 | # compute error an d sum of data's pixel |
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242 | self.postData() |
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243 | |
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244 | def restore(self): |
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245 | """ |
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246 | Restore the roughness for this layer. |
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247 | """ |
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248 | self.horizontal_lines.restore() |
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249 | self.vertical_lines.restore() |
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250 | self.center.restore() |
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251 | |
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252 | def getParams(self): |
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253 | """ |
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254 | Store a copy of values of parameters of the slicer into a dictionary. |
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255 | :return params: the dictionary created |
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256 | """ |
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257 | params = {} |
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258 | params["Width"] = numpy.fabs(self.vertical_lines.half_width) * 2 |
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259 | params["Height"] = numpy.fabs(self.horizontal_lines.half_height) * 2 |
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260 | params["center_x"] = self.center.x |
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261 | params["center_y"] = self.center.y |
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262 | params["num_points"] = self.points |
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263 | params["avg"] = self.count |
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264 | params["avg_error"] = self.error |
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265 | params["sum"] = self.total |
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266 | params["sum_error"] = self.totalerror |
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267 | return params |
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268 | |
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269 | def getResult(self): |
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270 | """ |
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271 | Return the result of box summation |
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272 | """ |
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273 | result = {} |
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274 | result["num_points"] = self.points |
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275 | result["avg"] = self.count |
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276 | result["avg_error"] = self.error |
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277 | result["sum"] = self.total |
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278 | result["sum_error"] = self.totalerror |
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279 | return result |
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280 | |
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281 | def setParams(self, params): |
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282 | """ |
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283 | Receive a dictionary and reset the slicer with values contained |
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284 | in the values of the dictionary. |
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285 | :param params: a dictionary containing name of slicer parameters |
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286 | and values the user assigned to the slicer. |
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287 | """ |
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288 | x_max = numpy.fabs(params["Width"]) / 2 |
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289 | y_max = numpy.fabs(params["Height"]) / 2 |
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290 | |
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291 | self.center_x = params["center_x"] |
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292 | self.center_y = params["center_y"] |
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293 | # update the slicer given values of params |
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294 | self.center.update(center_x=self.center_x, center_y=self.center_y) |
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295 | self.horizontal_lines.update(center=self.center, |
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296 | width=x_max, height=y_max) |
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297 | self.vertical_lines.update(center=self.center, |
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298 | width=x_max, height=y_max) |
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299 | # compute the new error and sum given values of params |
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300 | self.postData() |
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301 | |
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302 | def draw(self): |
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303 | """ Redraw canvas""" |
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304 | self.base.draw() |
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305 | |
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306 | |
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307 | |
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308 | class PointInteractor(BaseInteractor): |
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309 | """ |
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310 | Draw a point that can be dragged with the marker. |
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311 | this class controls the motion the center of the BoxSum |
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312 | """ |
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313 | def __init__(self, base, axes, color='black', zorder=5, center_x=0.0, |
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314 | center_y=0.0): |
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315 | BaseInteractor.__init__(self, base, axes, color=color) |
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316 | # Initialization the class |
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317 | self.markers = [] |
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318 | self.axes = axes |
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319 | # center coordinates |
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320 | self.x = center_x |
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321 | self.y = center_y |
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322 | # saved value of the center coordinates |
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323 | self.save_x = center_x |
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324 | self.save_y = center_y |
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325 | # Create a marker |
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326 | self.center_marker = self.axes.plot([self.x], [self.y], linestyle='', |
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327 | marker='s', markersize=10, |
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328 | color=self.color, alpha=0.6, |
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329 | pickradius=5, label="pick", |
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330 | zorder=zorder, |
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331 | visible=True)[0] |
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332 | # Draw a point |
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333 | self.center = self.axes.plot([self.x], [self.y], |
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334 | linestyle='-', marker='', |
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335 | color=self.color, |
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336 | visible=True)[0] |
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337 | # Flag to determine the motion this point |
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338 | self.has_move = False |
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339 | # connecting the marker to allow them to move |
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340 | self.connect_markers([self.center_marker]) |
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341 | # Update the figure |
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342 | self.update() |
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343 | |
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344 | def setLayer(self, n): |
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345 | """ |
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346 | Allow adding plot to the same panel |
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347 | @param n: the number of layer |
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348 | """ |
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349 | self.layernum = n |
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350 | self.update() |
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351 | |
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352 | def clear(self): |
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353 | """ |
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354 | Clear this figure and its markers |
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355 | """ |
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356 | self.clear_markers() |
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357 | self.center.remove() |
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358 | self.center_marker.remove() |
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359 | |
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360 | def update(self, center_x=None, center_y=None): |
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361 | """ |
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362 | Draw the new roughness on the graph. |
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363 | """ |
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364 | if center_x != None: |
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365 | self.x = center_x |
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366 | if center_y != None: |
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367 | self.y = center_y |
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368 | self.center_marker.set(xdata=[self.x], ydata=[self.y]) |
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369 | self.center.set(xdata=[self.x], ydata=[self.y]) |
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370 | |
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371 | def save(self, ev): |
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372 | """ |
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373 | Remember the roughness for this layer and the next so that we |
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374 | can restore on Esc. |
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375 | """ |
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376 | self.save_x = self.x |
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377 | self.save_y = self.y |
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378 | |
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379 | def moveend(self, ev): |
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380 | """ |
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381 | """ |
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382 | self.has_move = False |
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383 | self.base.moveend(ev) |
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384 | |
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385 | def restore(self): |
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386 | """ |
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387 | Restore the roughness for this layer. |
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388 | """ |
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389 | self.y = self.save_y |
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390 | self.x = self.save_x |
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391 | |
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392 | def move(self, x, y, ev): |
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393 | """ |
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394 | Process move to a new position, making sure that the move is allowed. |
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395 | """ |
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396 | self.x = x |
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397 | self.y = y |
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398 | self.has_move = True |
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399 | self.base.base.update() |
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400 | |
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401 | def setCursor(self, x, y): |
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402 | """ |
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403 | """ |
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404 | self.move(x, y, None) |
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405 | self.update() |
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406 | |
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407 | class VerticalDoubleLine(BaseInteractor): |
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408 | """ |
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409 | Draw 2 vertical lines moving in opposite direction and centered on |
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410 | a point (PointInteractor) |
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411 | """ |
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412 | def __init__(self, base, axes, color='black', zorder=5, x=0.5, y=0.5, |
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413 | center_x=0.0, center_y=0.0): |
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414 | BaseInteractor.__init__(self, base, axes, color=color) |
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415 | # Initialization the class |
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416 | self.markers = [] |
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417 | self.axes = axes |
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418 | # Center coordinates |
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419 | self.center_x = center_x |
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420 | self.center_y = center_y |
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421 | # defined end points vertical lignes and their saved values |
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422 | self.y1 = y + self.center_y |
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423 | self.save_y1 = self.y1 |
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424 | |
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425 | delta = self.y1 - self.center_y |
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426 | self.y2 = self.center_y - delta |
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427 | self.save_y2 = self.y2 |
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428 | |
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429 | self.x1 = x + self.center_x |
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430 | self.save_x1 = self.x1 |
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431 | |
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432 | delta = self.x1 - self.center_x |
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433 | self.x2 = self.center_x - delta |
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434 | self.save_x2 = self.x2 |
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435 | # # save the color of the line |
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436 | self.color = color |
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437 | # the height of the rectangle |
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438 | self.half_height = numpy.fabs(y) |
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439 | self.save_half_height = numpy.fabs(y) |
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440 | # the with of the rectangle |
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441 | self.half_width = numpy.fabs(self.x1 - self.x2) / 2 |
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442 | self.save_half_width = numpy.fabs(self.x1 - self.x2) / 2 |
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443 | # Create marker |
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444 | self.right_marker = self.axes.plot([self.x1], [0], linestyle='', |
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445 | marker='s', markersize=10, |
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446 | color=self.color, alpha=0.6, |
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447 | pickradius=5, label="pick", |
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448 | zorder=zorder, visible=True)[0] |
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449 | |
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450 | # Define the left and right lines of the rectangle |
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451 | self.right_line = self.axes.plot([self.x1, self.x1], [self.y1, self.y2], |
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452 | linestyle='-', marker='', |
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453 | color=self.color, visible=True)[0] |
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454 | self.left_line = self.axes.plot([self.x2, self.x2], [self.y1, self.y2], |
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455 | linestyle='-', marker='', |
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456 | color=self.color, visible=True)[0] |
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457 | # Flag to determine if the lines have moved |
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458 | self.has_move = False |
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459 | # Connection the marker and draw the pictures |
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460 | self.connect_markers([self.right_marker]) |
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461 | self.update() |
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462 | |
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463 | def setLayer(self, n): |
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464 | """ |
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465 | Allow adding plot to the same panel |
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466 | :param n: the number of layer |
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467 | """ |
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468 | self.layernum = n |
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469 | self.update() |
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470 | |
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471 | def clear(self): |
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472 | """ |
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473 | Clear this slicer and its markers |
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474 | """ |
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475 | self.clear_markers() |
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476 | self.right_marker.remove() |
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477 | self.right_line.remove() |
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478 | self.left_line.remove() |
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479 | |
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480 | def update(self, x1=None, x2=None, y1=None, y2=None, width=None, |
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481 | height=None, center=None): |
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482 | """ |
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483 | Draw the new roughness on the graph. |
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484 | :param x1: new maximum value of x coordinates |
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485 | :param x2: new minimum value of x coordinates |
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486 | :param y1: new maximum value of y coordinates |
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487 | :param y2: new minimum value of y coordinates |
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488 | :param width: is the width of the new rectangle |
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489 | :param height: is the height of the new rectangle |
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490 | :param center: provided x, y coordinates of the center point |
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491 | """ |
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492 | # Save the new height, witdh of the rectangle if given as a param |
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493 | if width is not None: |
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494 | self.half_width = width |
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495 | if height is not None: |
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496 | self.half_height = height |
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497 | # If new center coordinates are given draw the rectangle |
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498 | # given these value |
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499 | if center is not None: |
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500 | self.center_x = center.x |
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501 | self.center_y = center.y |
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502 | self.x1 = self.half_width + self.center_x |
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503 | self.x2 = -self.half_width + self.center_x |
---|
504 | self.y1 = self.half_height + self.center_y |
---|
505 | self.y2 = -self.half_height + self.center_y |
---|
506 | |
---|
507 | self.right_marker.set(xdata=[self.x1], ydata=[self.center_y]) |
---|
508 | self.right_line.set(xdata=[self.x1, self.x1], |
---|
509 | ydata=[self.y1, self.y2]) |
---|
510 | self.left_line.set(xdata=[self.x2, self.x2], |
---|
511 | ydata=[self.y1, self.y2]) |
---|
512 | return |
---|
513 | # if x1, y1, y2, y3 are given draw the rectangle with this value |
---|
514 | if x1 is not None: |
---|
515 | self.x1 = x1 |
---|
516 | if x2 is not None: |
---|
517 | self.x2 = x2 |
---|
518 | if y1 is not None: |
---|
519 | self.y1 = y1 |
---|
520 | if y2 is not None: |
---|
521 | self.y2 = y2 |
---|
522 | # Draw 2 vertical lines and a marker |
---|
523 | self.right_marker.set(xdata=[self.x1], ydata=[self.center_y]) |
---|
524 | self.right_line.set(xdata=[self.x1, self.x1], ydata=[self.y1, self.y2]) |
---|
525 | self.left_line.set(xdata=[self.x2, self.x2], ydata=[self.y1, self.y2]) |
---|
526 | |
---|
527 | def save(self, ev): |
---|
528 | """ |
---|
529 | Remember the roughness for this layer and the next so that we |
---|
530 | can restore on Esc. |
---|
531 | """ |
---|
532 | self.save_x2 = self.x2 |
---|
533 | self.save_y2 = self.y2 |
---|
534 | self.save_x1 = self.x1 |
---|
535 | self.save_y1 = self.y1 |
---|
536 | self.save_half_height = self.half_height |
---|
537 | self.save_half_width = self.half_width |
---|
538 | |
---|
539 | def moveend(self, ev): |
---|
540 | """ |
---|
541 | After a dragging motion reset the flag self.has_move to False |
---|
542 | """ |
---|
543 | self.has_move = False |
---|
544 | self.base.moveend(ev) |
---|
545 | |
---|
546 | def restore(self): |
---|
547 | """ |
---|
548 | Restore the roughness for this layer. |
---|
549 | """ |
---|
550 | self.y2 = self.save_y2 |
---|
551 | self.x2 = self.save_x2 |
---|
552 | self.y1 = self.save_y1 |
---|
553 | self.x1 = self.save_x1 |
---|
554 | self.half_height = self.save_half_height |
---|
555 | self.half_width = self.save_half_width |
---|
556 | |
---|
557 | def move(self, x, y, ev): |
---|
558 | """ |
---|
559 | Process move to a new position, making sure that the move is allowed. |
---|
560 | """ |
---|
561 | self.x1 = x |
---|
562 | delta = self.x1 - self.center_x |
---|
563 | self.x2 = self.center_x - delta |
---|
564 | self.half_width = numpy.fabs(self.x1 - self.x2) / 2 |
---|
565 | self.has_move = True |
---|
566 | self.base.base.update() |
---|
567 | |
---|
568 | def setCursor(self, x, y): |
---|
569 | """ |
---|
570 | Update the figure given x and y |
---|
571 | """ |
---|
572 | self.move(x, y, None) |
---|
573 | self.update() |
---|
574 | |
---|
575 | class HorizontalDoubleLine(BaseInteractor): |
---|
576 | """ |
---|
577 | Select an annulus through a 2D plot |
---|
578 | """ |
---|
579 | def __init__(self, base, axes, color='black', zorder=5, x=0.5, y=0.5, |
---|
580 | center_x=0.0, center_y=0.0): |
---|
581 | |
---|
582 | BaseInteractor.__init__(self, base, axes, color=color) |
---|
583 | # Initialization the class |
---|
584 | self.markers = [] |
---|
585 | self.axes = axes |
---|
586 | # Center coordinates |
---|
587 | self.center_x = center_x |
---|
588 | self.center_y = center_y |
---|
589 | self.y1 = y + self.center_y |
---|
590 | self.save_y1 = self.y1 |
---|
591 | delta = self.y1 - self.center_y |
---|
592 | self.y2 = self.center_y - delta |
---|
593 | self.save_y2 = self.y2 |
---|
594 | self.x1 = x + self.center_x |
---|
595 | self.save_x1 = self.x1 |
---|
596 | delta = self.x1 - self.center_x |
---|
597 | self.x2 = self.center_x - delta |
---|
598 | self.save_x2 = self.x2 |
---|
599 | self.color = color |
---|
600 | self.half_height = numpy.fabs(y) |
---|
601 | self.save_half_height = numpy.fabs(y) |
---|
602 | self.half_width = numpy.fabs(x) |
---|
603 | self.save_half_width = numpy.fabs(x) |
---|
604 | self.top_marker = self.axes.plot([0], [self.y1], linestyle='', |
---|
605 | marker='s', markersize=10, |
---|
606 | color=self.color, alpha=0.6, |
---|
607 | pickradius=5, label="pick", |
---|
608 | zorder=zorder, visible=True)[0] |
---|
609 | |
---|
610 | # Define 2 horizotnal lines |
---|
611 | self.top_line = self.axes.plot([self.x1, -self.x1], [self.y1, self.y1], |
---|
612 | linestyle='-', marker='', |
---|
613 | color=self.color, visible=True)[0] |
---|
614 | self.bottom_line = self.axes.plot([self.x1, -self.x1], |
---|
615 | [self.y2, self.y2], |
---|
616 | linestyle='-', marker='', |
---|
617 | color=self.color, visible=True)[0] |
---|
618 | # Flag to determine if the lines have moved |
---|
619 | self.has_move = False |
---|
620 | # connection the marker and draw the pictures |
---|
621 | self.connect_markers([self.top_marker]) |
---|
622 | self.update() |
---|
623 | |
---|
624 | def setLayer(self, n): |
---|
625 | """ |
---|
626 | Allow adding plot to the same panel |
---|
627 | @param n: the number of layer |
---|
628 | """ |
---|
629 | self.layernum = n |
---|
630 | self.update() |
---|
631 | |
---|
632 | def clear(self): |
---|
633 | """ |
---|
634 | Clear this figure and its markers |
---|
635 | """ |
---|
636 | self.clear_markers() |
---|
637 | self.top_marker.remove() |
---|
638 | self.bottom_line.remove() |
---|
639 | self.top_line.remove() |
---|
640 | |
---|
641 | def update(self, x1=None, x2=None, y1=None, y2=None, |
---|
642 | width=None, height=None, center=None): |
---|
643 | """ |
---|
644 | Draw the new roughness on the graph. |
---|
645 | :param x1: new maximum value of x coordinates |
---|
646 | :param x2: new minimum value of x coordinates |
---|
647 | :param y1: new maximum value of y coordinates |
---|
648 | :param y2: new minimum value of y coordinates |
---|
649 | :param width: is the width of the new rectangle |
---|
650 | :param height: is the height of the new rectangle |
---|
651 | :param center: provided x, y coordinates of the center point |
---|
652 | """ |
---|
653 | # Save the new height, witdh of the rectangle if given as a param |
---|
654 | if width is not None: |
---|
655 | self.half_width = width |
---|
656 | if height is not None: |
---|
657 | self.half_height = height |
---|
658 | # If new center coordinates are given draw the rectangle |
---|
659 | # given these value |
---|
660 | if center is not None: |
---|
661 | self.center_x = center.x |
---|
662 | self.center_y = center.y |
---|
663 | self.x1 = self.half_width + self.center_x |
---|
664 | self.x2 = -self.half_width + self.center_x |
---|
665 | |
---|
666 | self.y1 = self.half_height + self.center_y |
---|
667 | self.y2 = -self.half_height + self.center_y |
---|
668 | |
---|
669 | self.top_marker.set(xdata=[self.center_x], ydata=[self.y1]) |
---|
670 | self.top_line.set(xdata=[self.x1, self.x2], |
---|
671 | ydata=[self.y1, self.y1]) |
---|
672 | self.bottom_line.set(xdata=[self.x1, self.x2], |
---|
673 | ydata=[self.y2, self.y2]) |
---|
674 | return |
---|
675 | # if x1, y1, y2, y3 are given draw the rectangle with this value |
---|
676 | if x1 is not None: |
---|
677 | self.x1 = x1 |
---|
678 | if x2 is not None: |
---|
679 | self.x2 = x2 |
---|
680 | if y1 is not None: |
---|
681 | self.y1 = y1 |
---|
682 | if y2 is not None: |
---|
683 | self.y2 = y2 |
---|
684 | # Draw 2 vertical lines and a marker |
---|
685 | self.top_marker.set(xdata=[self.center_x], ydata=[self.y1]) |
---|
686 | self.top_line.set(xdata=[self.x1, self.x2], ydata=[self.y1, self.y1]) |
---|
687 | self.bottom_line.set(xdata=[self.x1, self.x2], ydata=[self.y2, self.y2]) |
---|
688 | |
---|
689 | def save(self, ev): |
---|
690 | """ |
---|
691 | Remember the roughness for this layer and the next so that we |
---|
692 | can restore on Esc. |
---|
693 | """ |
---|
694 | self.save_x2 = self.x2 |
---|
695 | self.save_y2 = self.y2 |
---|
696 | self.save_x1 = self.x1 |
---|
697 | self.save_y1 = self.y1 |
---|
698 | self.save_half_height = self.half_height |
---|
699 | self.save_half_width = self.half_width |
---|
700 | |
---|
701 | def moveend(self, ev): |
---|
702 | """ |
---|
703 | After a dragging motion reset the flag self.has_move to False |
---|
704 | """ |
---|
705 | self.has_move = False |
---|
706 | self.base.moveend(ev) |
---|
707 | |
---|
708 | def restore(self): |
---|
709 | """ |
---|
710 | Restore the roughness for this layer. |
---|
711 | """ |
---|
712 | self.y2 = self.save_y2 |
---|
713 | self.x2 = self.save_x2 |
---|
714 | self.y1 = self.save_y1 |
---|
715 | self.x1 = self.save_x1 |
---|
716 | self.half_height = self.save_half_height |
---|
717 | self.half_width = self.save_half_width |
---|
718 | |
---|
719 | def move(self, x, y, ev): |
---|
720 | """ |
---|
721 | Process move to a new position, making sure that the move is allowed. |
---|
722 | """ |
---|
723 | self.y1 = y |
---|
724 | delta = self.y1 - self.center_y |
---|
725 | self.y2 = self.center_y - delta |
---|
726 | self.half_height = numpy.fabs(self.y1) - self.center_y |
---|
727 | self.has_move = True |
---|
728 | self.base.base.update() |
---|
729 | |
---|
730 | def setCursor(self, x, y): |
---|
731 | """ |
---|
732 | Update the figure given x and y |
---|
733 | """ |
---|
734 | self.move(x, y, None) |
---|
735 | self.update() |
---|