1 | import numpy |
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2 | |
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3 | import sas.qtgui.Utilities.GuiUtils as GuiUtils |
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4 | from .BaseInteractor import BaseInteractor |
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5 | from sas.qtgui.Plotting.PlotterData import Data1D |
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6 | from sas.qtgui.Utilities.GuiUtils import formatNumber |
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7 | from sas.qtgui.Plotting.SlicerModel import SlicerModel |
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8 | |
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9 | class AnnulusInteractor(BaseInteractor, SlicerModel): |
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10 | """ |
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11 | Select an annulus through a 2D plot. |
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12 | This interactor is used to average 2D data with the region |
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13 | defined by 2 radius. |
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14 | this class is defined by 2 Ringinterators. |
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15 | """ |
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16 | def __init__(self, base, axes, item=None, color='black', zorder=3): |
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17 | |
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18 | BaseInteractor.__init__(self, base, axes, color=color) |
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19 | SlicerModel.__init__(self) |
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20 | |
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21 | self.markers = [] |
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22 | self.axes = axes |
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23 | self.base = base |
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24 | self._item = item |
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25 | self.qmax = min(numpy.fabs(self.base.data.xmax), |
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26 | numpy.fabs(self.base.data.xmin)) # must be positive |
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27 | self.connect = self.base.connect |
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28 | |
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29 | # Number of points on the plot |
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30 | self.nbins = 36 |
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31 | # Cursor position of Rings (Left(-1) or Right(1)) |
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32 | self.xmaxd = self.base.data.xmax |
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33 | self.xmind = self.base.data.xmin |
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34 | |
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35 | if (self.xmaxd + self.xmind) > 0: |
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36 | self.sign = 1 |
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37 | else: |
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38 | self.sign = -1 |
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39 | # Inner circle |
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40 | self.inner_circle = RingInteractor(self, self.axes, |
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41 | zorder=zorder, |
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42 | r=self.qmax / 2.0, sign=self.sign) |
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43 | self.inner_circle.qmax = self.qmax |
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44 | self.outer_circle = RingInteractor(self, self.axes, |
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45 | zorder=zorder + 1, r=self.qmax / 1.8, |
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46 | sign=self.sign) |
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47 | self.outer_circle.qmax = self.qmax * 1.2 |
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48 | self.update() |
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49 | self._post_data() |
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50 | |
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51 | self.setModelFromParams() |
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52 | |
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53 | def set_layer(self, n): |
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54 | """ |
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55 | Allow adding plot to the same panel |
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56 | :param n: the number of layer |
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57 | """ |
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58 | self.layernum = n |
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59 | self.update() |
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60 | |
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61 | def clear(self): |
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62 | """ |
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63 | Clear the slicer and all connected events related to this slicer |
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64 | """ |
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65 | self.clear_markers() |
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66 | self.outer_circle.clear() |
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67 | self.inner_circle.clear() |
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68 | self.base.connect.clearall() |
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69 | |
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70 | def update(self): |
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71 | """ |
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72 | Respond to changes in the model by recalculating the profiles and |
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73 | resetting the widgets. |
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74 | """ |
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75 | # Update locations |
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76 | self.inner_circle.update() |
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77 | self.outer_circle.update() |
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78 | |
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79 | def save(self, ev): |
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80 | """ |
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81 | Remember the roughness for this layer and the next so that we |
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82 | can restore on Esc. |
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83 | """ |
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84 | self.inner_circle.save(ev) |
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85 | self.outer_circle.save(ev) |
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86 | |
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87 | def _post_data(self, nbins=None): |
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88 | """ |
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89 | Uses annulus parameters to plot averaged data into 1D data. |
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90 | |
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91 | :param nbins: the number of points to plot |
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92 | |
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93 | """ |
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94 | # Data to average |
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95 | data = self.base.data |
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96 | if data is None: |
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97 | return |
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98 | |
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99 | from sas.sascalc.dataloader.manipulations import Ring |
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100 | rmin = min(numpy.fabs(self.inner_circle.get_radius()), |
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101 | numpy.fabs(self.outer_circle.get_radius())) |
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102 | rmax = max(numpy.fabs(self.inner_circle.get_radius()), |
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103 | numpy.fabs(self.outer_circle.get_radius())) |
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104 | # If the user does not specify the numbers of points to plot |
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105 | # the default number will be nbins= 36 |
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106 | if nbins is None: |
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107 | self.nbins = 36 |
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108 | else: |
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109 | self.nbins = nbins |
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110 | # Create the data1D Q average of data2D |
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111 | sect = Ring(r_min=rmin, r_max=rmax, nbins=self.nbins) |
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112 | sector = sect(self.base.data) |
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113 | |
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114 | if hasattr(sector, "dxl"): |
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115 | dxl = sector.dxl |
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116 | else: |
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117 | dxl = None |
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118 | if hasattr(sector, "dxw"): |
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119 | dxw = sector.dxw |
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120 | else: |
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121 | dxw = None |
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122 | new_plot = Data1D(x=(sector.x - numpy.pi) * 180 / numpy.pi, |
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123 | y=sector.y, dy=sector.dy) |
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124 | new_plot.dxl = dxl |
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125 | new_plot.dxw = dxw |
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126 | new_plot.name = "AnnulusPhi" + "(" + self.base.data.name + ")" |
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127 | new_plot.title = "AnnulusPhi" + "(" + self.base.data.name + ")" |
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128 | |
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129 | new_plot.source = self.base.data.source |
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130 | new_plot.interactive = True |
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131 | new_plot.detector = self.base.data.detector |
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132 | # If the data file does not tell us what the axes are, just assume... |
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133 | new_plot.xaxis("\\rm{\phi}", 'degrees') |
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134 | new_plot.yaxis("\\rm{Intensity} ", "cm^{-1}") |
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135 | if hasattr(data, "scale") and data.scale == 'linear' and \ |
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136 | self.base.data.name.count("Residuals") > 0: |
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137 | new_plot.ytransform = 'y' |
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138 | new_plot.yaxis("\\rm{Residuals} ", "/") |
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139 | |
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140 | new_plot.group_id = "AnnulusPhi" + self.base.data.name |
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141 | new_plot.id = "AnnulusPhi" + self.base.data.name |
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142 | new_plot.is_data = True |
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143 | new_plot.xtransform = "x" |
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144 | new_plot.ytransform = "y" |
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145 | GuiUtils.updateModelItemWithPlot(self._item, new_plot, new_plot.id) |
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146 | self.base.manager.communicator.plotUpdateSignal.emit([new_plot]) |
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147 | |
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148 | if self.update_model: |
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149 | self.setModelFromParams() |
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150 | self.draw() |
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151 | |
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152 | def validate(self, param_name, param_value): |
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153 | """ |
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154 | Test the proposed new value "value" for row "row" of parameters |
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155 | """ |
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156 | MIN_DIFFERENCE = 0.01 |
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157 | isValid = True |
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158 | |
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159 | if param_name == 'inner_radius': |
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160 | # First, check the closeness |
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161 | if numpy.fabs(param_value - self.getParams()['outer_radius']) < MIN_DIFFERENCE: |
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162 | print("Inner and outer radii too close. Please adjust.") |
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163 | isValid = False |
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164 | elif param_value > self.qmax: |
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165 | print("Inner radius exceeds maximum range. Please adjust.") |
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166 | isValid = False |
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167 | elif param_name == 'outer_radius': |
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168 | # First, check the closeness |
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169 | if numpy.fabs(param_value - self.getParams()['inner_radius']) < MIN_DIFFERENCE: |
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170 | print("Inner and outer radii too close. Please adjust.") |
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171 | isValid = False |
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172 | elif param_value > self.qmax: |
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173 | print("Outer radius exceeds maximum range. Please adjust.") |
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174 | isValid = False |
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175 | elif param_name == 'nbins': |
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176 | # Can't be 0 |
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177 | if param_value < 1: |
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178 | print("Number of bins cannot be less than or equal to 0. Please adjust.") |
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179 | isValid = False |
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180 | |
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181 | return isValid |
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182 | |
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183 | def moveend(self, ev): |
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184 | """ |
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185 | Called when any dragging motion ends. |
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186 | Redraw the plot with new parameters. |
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187 | """ |
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188 | self._post_data(self.nbins) |
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189 | |
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190 | def restore(self): |
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191 | """ |
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192 | Restore the roughness for this layer. |
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193 | """ |
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194 | self.inner_circle.restore() |
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195 | self.outer_circle.restore() |
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196 | |
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197 | def move(self, x, y, ev): |
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198 | """ |
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199 | Process move to a new position, making sure that the move is allowed. |
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200 | """ |
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201 | pass |
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202 | |
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203 | def set_cursor(self, x, y): |
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204 | pass |
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205 | |
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206 | def getParams(self): |
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207 | """ |
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208 | Store a copy of values of parameters of the slicer into a dictionary. |
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209 | :return params: the dictionary created |
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210 | """ |
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211 | params = {} |
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212 | params["inner_radius"] = numpy.fabs(self.inner_circle._inner_mouse_x) |
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213 | params["outer_radius"] = numpy.fabs(self.outer_circle._inner_mouse_x) |
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214 | params["nbins"] = self.nbins |
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215 | return params |
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216 | |
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217 | def setParams(self, params): |
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218 | """ |
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219 | Receive a dictionary and reset the slicer with values contained |
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220 | in the values of the dictionary. |
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221 | |
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222 | :param params: a dictionary containing name of slicer parameters and |
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223 | values the user assigned to the slicer. |
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224 | """ |
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225 | inner = numpy.fabs(params["inner_radius"]) |
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226 | outer = numpy.fabs(params["outer_radius"]) |
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227 | self.nbins = int(params["nbins"]) |
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228 | # Update the picture |
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229 | self.inner_circle.set_cursor(inner, self.inner_circle._inner_mouse_y) |
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230 | self.outer_circle.set_cursor(outer, self.outer_circle._inner_mouse_y) |
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231 | # Post the data given the nbins entered by the user |
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232 | self._post_data(self.nbins) |
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233 | |
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234 | def draw(self): |
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235 | """ |
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236 | """ |
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237 | self.base.draw() |
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238 | |
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239 | |
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240 | class RingInteractor(BaseInteractor): |
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241 | """ |
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242 | Draw a ring Given a radius |
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243 | """ |
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244 | def __init__(self, base, axes, color='black', zorder=5, r=1.0, sign=1): |
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245 | """ |
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246 | :param: the color of the line that defined the ring |
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247 | :param r: the radius of the ring |
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248 | :param sign: the direction of motion the the marker |
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249 | |
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250 | """ |
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251 | BaseInteractor.__init__(self, base, axes, color=color) |
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252 | self.markers = [] |
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253 | self.axes = axes |
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254 | # Current radius of the ring |
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255 | self._inner_mouse_x = r |
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256 | # Value of the center of the ring |
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257 | self._inner_mouse_y = 0 |
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258 | # previous value of that radius |
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259 | self._inner_save_x = r |
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260 | # Save value of the center of the ring |
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261 | self._inner_save_y = 0 |
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262 | # Class instantiating RingIterator class |
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263 | self.base = base |
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264 | # the direction of the motion of the marker |
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265 | self.sign = sign |
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266 | # # Create a marker |
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267 | # Inner circle marker |
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268 | x_value = [self.sign * numpy.fabs(self._inner_mouse_x)] |
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269 | self.inner_marker = self.axes.plot(x_value, [0], linestyle='', |
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270 | marker='s', markersize=10, |
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271 | color=self.color, alpha=0.6, |
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272 | pickradius=5, label="pick", |
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273 | zorder=zorder, |
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274 | visible=True)[0] |
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275 | # Draw a circle |
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276 | [self.inner_circle] = self.axes.plot([], [], linestyle='-', marker='', color=self.color) |
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277 | # The number of points that make the ring line |
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278 | self.npts = 40 |
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279 | |
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280 | self.connect_markers([self.inner_marker]) |
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281 | self.update() |
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282 | |
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283 | def set_layer(self, n): |
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284 | """ |
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285 | Allow adding plot to the same panel |
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286 | |
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287 | :param n: the number of layer |
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288 | |
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289 | """ |
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290 | self.layernum = n |
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291 | self.update() |
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292 | |
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293 | def clear(self): |
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294 | """ |
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295 | Clear the slicer and all connected events related to this slicer |
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296 | """ |
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297 | self.clear_markers() |
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298 | self.inner_marker.remove() |
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299 | self.inner_circle.remove() |
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300 | |
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301 | def get_radius(self): |
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302 | """ |
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303 | :return self._inner_mouse_x: the current radius of the ring |
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304 | """ |
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305 | return self._inner_mouse_x |
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306 | |
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307 | def update(self): |
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308 | """ |
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309 | Draw the new roughness on the graph. |
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310 | """ |
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311 | # Plot inner circle |
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312 | x = [] |
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313 | y = [] |
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314 | for i in range(self.npts): |
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315 | phi = 2.0 * numpy.pi / (self.npts - 1) * i |
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316 | |
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317 | xval = 1.0 * self._inner_mouse_x * numpy.cos(phi) |
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318 | yval = 1.0 * self._inner_mouse_x * numpy.sin(phi) |
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319 | |
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320 | x.append(xval) |
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321 | y.append(yval) |
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322 | |
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323 | self.inner_marker.set(xdata=[self.sign * numpy.fabs(self._inner_mouse_x)], |
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324 | ydata=[0]) |
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325 | self.inner_circle.set_data(x, y) |
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326 | |
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327 | def save(self, ev): |
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328 | """ |
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329 | Remember the roughness for this layer and the next so that we |
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330 | can restore on Esc. |
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331 | """ |
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332 | self._inner_save_x = self._inner_mouse_x |
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333 | self._inner_save_y = self._inner_mouse_y |
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334 | |
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335 | def moveend(self, ev): |
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336 | """ |
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337 | Called after a dragging motion |
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338 | """ |
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339 | self.base.moveend(ev) |
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340 | |
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341 | def restore(self): |
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342 | """ |
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343 | Restore the roughness for this layer. |
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344 | """ |
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345 | self._inner_mouse_x = self._inner_save_x |
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346 | self._inner_mouse_y = self._inner_save_y |
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347 | |
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348 | def move(self, x, y, ev): |
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349 | """ |
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350 | Process move to a new position, making sure that the move is allowed. |
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351 | """ |
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352 | self._inner_mouse_x = x |
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353 | self._inner_mouse_y = y |
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354 | self.base.base.update() |
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355 | |
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356 | def set_cursor(self, x, y): |
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357 | """ |
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358 | draw the ring given x, y value |
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359 | """ |
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360 | self.move(x, y, None) |
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361 | self.update() |
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362 | |
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363 | def getParams(self): |
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364 | """ |
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365 | Store a copy of values of parameters of the slicer into a dictionary. |
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366 | :return params: the dictionary created |
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367 | """ |
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368 | params = {} |
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369 | params["radius"] = numpy.fabs(self._inner_mouse_x) |
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370 | return params |
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371 | |
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372 | def setParams(self, params): |
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373 | """ |
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374 | Receive a dictionary and reset the slicer with values contained |
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375 | in the values of the dictionary. |
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376 | |
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377 | :param params: a dictionary containing name of slicer parameters and |
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378 | values the user assigned to the slicer. |
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379 | |
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380 | """ |
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381 | x = params["radius"] |
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382 | self.set_cursor(x, self._inner_mouse_y) |
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383 | |
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384 | |
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