1 | |
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2 | import math |
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3 | import wx |
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4 | #from copy import deepcopy |
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5 | from BaseInteractor import _BaseInteractor |
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6 | from sans.guiframe.events import NewPlotEvent |
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7 | from sans.guiframe.events import StatusEvent |
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8 | from sans.guiframe.events import SlicerParameterEvent |
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9 | from sans.guiframe.events import EVT_SLICER_PARS |
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10 | from sans.guiframe.dataFitting import Data1D |
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11 | |
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12 | |
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13 | class SectorInteractor(_BaseInteractor): |
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14 | """ |
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15 | Draw a sector slicer.Allow to performQ averaging on data 2D |
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16 | """ |
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17 | def __init__(self, base, axes, color='black', zorder=3): |
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18 | |
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19 | _BaseInteractor.__init__(self, base, axes, color=color) |
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20 | ## Class initialization |
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21 | self.markers = [] |
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22 | self.axes = axes |
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23 | ## connect the plot to event |
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24 | self.connect = self.base.connect |
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25 | |
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26 | ## compute qmax limit to reset the graph |
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27 | x = math.pow(max(self.base.data2D.xmax, |
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28 | math.fabs(self.base.data2D.xmin)), 2) |
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29 | y = math.pow(max(self.base.data2D.ymax, |
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30 | math.fabs(self.base.data2D.ymin)), 2) |
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31 | self.qmax = math.sqrt(x + y) |
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32 | ## Number of points on the plot |
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33 | self.nbins = 20 |
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34 | ## Angle of the middle line |
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35 | self.theta2 = math.pi/3 |
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36 | ## Absolute value of the Angle between the middle line and any side line |
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37 | self.phi = math.pi/12 |
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38 | ## Middle line |
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39 | self.main_line = LineInteractor(self, self.base.subplot, color='blue', |
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40 | zorder=zorder, r=self.qmax, |
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41 | theta= self.theta2) |
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42 | self.main_line.qmax = self.qmax |
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43 | ## Right Side line |
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44 | self.right_line = SideInteractor(self, self.base.subplot, color='black', |
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45 | zorder=zorder, r=self.qmax, |
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46 | phi=-1*self.phi, theta2=self.theta2) |
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47 | self.right_line.qmax = self.qmax |
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48 | ## Left Side line |
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49 | self.left_line = SideInteractor(self, self.base.subplot, color='black', |
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50 | zorder=zorder, r=self.qmax, |
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51 | phi=self.phi, theta2=self.theta2) |
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52 | self.left_line.qmax = self.qmax |
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53 | ## draw the sector |
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54 | self.update() |
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55 | self._post_data() |
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56 | ## Bind to slice parameter events |
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57 | self.base.Bind(EVT_SLICER_PARS, self._onEVT_SLICER_PARS) |
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58 | |
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59 | def _onEVT_SLICER_PARS(self, event): |
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60 | """ |
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61 | receive an event containing parameters values to reset the slicer |
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62 | |
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63 | :param event: event of type SlicerParameterEvent with params as |
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64 | attribute |
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65 | |
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66 | """ |
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67 | wx.PostEvent(self.base.parent, |
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68 | StatusEvent(status="SectorSlicer._onEVT_SLICER_PARS")) |
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69 | event.Skip() |
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70 | if event.type == self.__class__.__name__: |
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71 | self.set_params(event.params) |
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72 | self.base.update() |
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73 | |
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74 | def set_layer(self, n): |
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75 | """ |
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76 | Allow adding plot to the same panel |
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77 | |
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78 | :param n: the number of layer |
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79 | |
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80 | """ |
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81 | self.layernum = n |
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82 | self.update() |
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83 | |
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84 | def clear(self): |
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85 | """ |
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86 | Clear the slicer and all connected events related to this slicer |
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87 | """ |
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88 | self.clear_markers() |
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89 | self.main_line.clear() |
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90 | self.left_line.clear() |
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91 | self.right_line.clear() |
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92 | self.base.connect.clearall() |
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93 | self.base.Unbind(EVT_SLICER_PARS) |
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94 | |
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95 | def update(self): |
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96 | """ |
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97 | Respond to changes in the model by recalculating the profiles and |
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98 | resetting the widgets. |
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99 | """ |
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100 | # Update locations |
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101 | ## Check if the middle line was dragged and |
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102 | #update the picture accordingly |
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103 | if self.main_line.has_move: |
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104 | self.main_line.update() |
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105 | self.right_line.update(delta=-self.left_line.phi/2, |
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106 | mline=self.main_line.theta) |
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107 | self.left_line.update(delta=self.left_line.phi/2, |
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108 | mline=self.main_line.theta) |
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109 | ## Check if the left side has moved and update the slicer accordingly |
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110 | if self.left_line.has_move: |
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111 | self.main_line.update() |
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112 | self.left_line.update(phi=None, delta=None, mline=self.main_line, |
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113 | side=True, left=True) |
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114 | self.right_line.update(phi=self.left_line.phi, delta=None, |
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115 | mline=self.main_line, side=True, |
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116 | left=False, right=True) |
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117 | ## Check if the right side line has moved and |
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118 | #update the slicer accordingly |
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119 | if self.right_line.has_move: |
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120 | self.main_line.update() |
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121 | self.right_line.update(phi=None, delta=None, mline=self.main_line, |
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122 | side=True, left=False, right=True) |
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123 | self.left_line.update(phi=self.right_line.phi, delta=None, |
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124 | mline=self.main_line, side=True, left=False) |
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125 | |
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126 | def save(self, ev): |
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127 | """ |
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128 | Remember the roughness for this layer and the next so that we |
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129 | can restore on Esc. |
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130 | """ |
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131 | self.base.freeze_axes() |
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132 | self.main_line.save(ev) |
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133 | self.right_line.save(ev) |
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134 | self.left_line.save(ev) |
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135 | |
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136 | def _post_data(self, nbins=None): |
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137 | """ |
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138 | compute sector averaging of data2D into data1D |
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139 | |
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140 | :param nbins: the number of point to plot for the average 1D data |
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141 | """ |
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142 | ## get the data2D to average |
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143 | data = self.base.data2D |
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144 | # If we have no data, just return |
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145 | if data == None: |
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146 | return |
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147 | ## Averaging |
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148 | from sans.dataloader.manipulations import SectorQ |
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149 | radius = self.qmax |
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150 | phimin = -self.left_line.phi + self.main_line.theta |
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151 | phimax = self.left_line.phi + self.main_line.theta |
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152 | if nbins == None: |
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153 | nbins = 20 |
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154 | sect = SectorQ(r_min=0.0, r_max=radius, |
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155 | phi_min=phimin + math.pi, |
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156 | phi_max=phimax + math.pi, nbins=nbins) |
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157 | |
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158 | sector = sect(self.base.data2D) |
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159 | ##Create 1D data resulting from average |
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160 | |
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161 | if hasattr(sector, "dxl"): |
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162 | dxl = sector.dxl |
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163 | else: |
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164 | dxl = None |
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165 | if hasattr(sector, "dxw"): |
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166 | dxw = sector.dxw |
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167 | else: |
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168 | dxw = None |
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169 | new_plot = Data1D(x=sector.x, y=sector.y, dy=sector.dy, dx=sector.dx) |
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170 | new_plot.dxl = dxl |
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171 | new_plot.dxw = dxw |
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172 | new_plot.name = "SectorQ" + "(" + self.base.data2D.name + ")" |
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173 | new_plot.source = self.base.data2D.source |
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174 | #new_plot.info=self.base.data2D.info |
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175 | new_plot.interactive = True |
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176 | new_plot.detector = self.base.data2D.detector |
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177 | ## If the data file does not tell us what the axes are, just assume... |
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178 | new_plot.xaxis("\\rm{Q}", "A^{-1}") |
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179 | new_plot.yaxis("\\rm{Intensity}", "cm^{-1}") |
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180 | if hasattr(data, "scale") and data.scale == 'linear' and \ |
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181 | self.base.data2D.name.count("Residuals") > 0: |
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182 | new_plot.ytransform = 'y' |
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183 | new_plot.yaxis("\\rm{Residuals} ", "/") |
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184 | |
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185 | new_plot.group_id = "SectorQ" + self.base.data2D.name |
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186 | new_plot.id = None |
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187 | new_plot.is_data = True |
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188 | |
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189 | wx.PostEvent(self.base.parent, NewPlotEvent(plot=new_plot, |
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190 | title="SectorQ" + self.base.data2D.name)) |
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191 | |
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192 | def moveend(self, ev): |
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193 | """ |
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194 | Called a dragging motion ends.Get slicer event |
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195 | """ |
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196 | self.base.thaw_axes() |
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197 | ## Post parameters |
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198 | event = SlicerParameterEvent() |
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199 | event.type = self.__class__.__name__ |
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200 | event.params = self.get_params() |
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201 | ## Send slicer paramers to plotter2D |
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202 | wx.PostEvent(self.base, event) |
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203 | |
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204 | def restore(self): |
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205 | """ |
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206 | Restore the roughness for this layer. |
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207 | """ |
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208 | self.main_line.restore() |
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209 | self.left_line.restore() |
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210 | self.right_line.restore() |
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211 | |
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212 | def move(self, x, y, ev): |
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213 | """ |
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214 | Process move to a new position, making sure that the move is allowed. |
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215 | """ |
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216 | pass |
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217 | |
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218 | def set_cursor(self, x, y): |
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219 | """ |
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220 | """ |
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221 | pass |
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222 | |
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223 | def get_params(self): |
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224 | """ |
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225 | Store a copy of values of parameters of the slicer into a dictionary. |
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226 | |
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227 | :return params: the dictionary created |
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228 | |
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229 | """ |
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230 | params = {} |
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231 | ## Always make sure that the left and the right line are at phi |
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232 | ## angle of the middle line |
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233 | if math.fabs(self.left_line.phi) != math.fabs(self.right_line.phi): |
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234 | msg = "Phi left and phi right are different" |
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235 | msg += " %f, %f" % (self.left_line.phi, self.right_line.phi) |
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236 | raise ValueError, msg |
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237 | params["Phi"] = self.main_line.theta |
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238 | params["Delta_Phi"] = math.fabs(self.left_line.phi) |
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239 | params["nbins"] = self.nbins |
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240 | return params |
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241 | |
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242 | def set_params(self, params): |
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243 | """ |
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244 | Receive a dictionary and reset the slicer with values contained |
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245 | in the values of the dictionary. |
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246 | |
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247 | :param params: a dictionary containing name of slicer parameters and |
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248 | values the user assigned to the slicer. |
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249 | """ |
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250 | main = params["Phi"] |
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251 | phi = math.fabs(params["Delta_Phi"]) |
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252 | self.nbins = int(params["nbins"]) |
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253 | self.main_line.theta = main |
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254 | ## Reset the slicer parameters |
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255 | self.main_line.update() |
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256 | self.right_line.update(phi=phi, delta=None, mline=self.main_line, |
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257 | side=True, right=True) |
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258 | self.left_line.update(phi=phi, delta=None, |
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259 | mline=self.main_line, side=True) |
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260 | ## post the new corresponding data |
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261 | self._post_data(nbins=self.nbins) |
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262 | |
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263 | def freeze_axes(self): |
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264 | """ |
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265 | """ |
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266 | self.base.freeze_axes() |
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267 | |
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268 | def thaw_axes(self): |
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269 | """ |
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270 | """ |
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271 | self.base.thaw_axes() |
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272 | |
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273 | def draw(self): |
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274 | """ |
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275 | """ |
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276 | self.base.draw() |
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277 | |
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278 | |
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279 | class SideInteractor(_BaseInteractor): |
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280 | """ |
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281 | Draw an oblique line |
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282 | |
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283 | :param phi: the phase between the middle line and one side line |
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284 | :param theta2: the angle between the middle line and x- axis |
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285 | |
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286 | """ |
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287 | def __init__(self, base, axes, color='black', zorder=5, r=1.0, |
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288 | phi=math.pi/4, theta2= math.pi/3): |
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289 | """ |
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290 | """ |
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291 | _BaseInteractor.__init__(self, base, axes, color=color) |
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292 | ## Initialize the class |
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293 | self.markers = [] |
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294 | self.axes = axes |
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295 | ## compute the value of the angle between the current line and |
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296 | ## the x-axis |
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297 | self.save_theta = theta2 + phi |
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298 | self.theta = theta2 + phi |
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299 | ## the value of the middle line angle with respect to the x-axis |
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300 | self.theta2 = theta2 |
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301 | ## Radius to find polar coordinates this line's endpoints |
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302 | self.radius = r |
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303 | ## phi is the phase between the current line and the middle line |
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304 | self.phi = phi |
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305 | ## End points polar coordinates |
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306 | x1 = self.radius * math.cos(self.theta) |
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307 | y1 = self.radius * math.sin(self.theta) |
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308 | x2 = -1 * self.radius * math.cos(self.theta) |
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309 | y2 = -1 * self.radius * math.sin(self.theta) |
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310 | ## defining a new marker |
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311 | try: |
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312 | self.inner_marker = self.axes.plot([x1/2.5], [y1/2.5], linestyle='', |
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313 | marker='s', markersize=10, |
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314 | color=self.color, alpha=0.6, |
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315 | pickradius=5, label="pick", |
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316 | # Prefer this to other lines |
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317 | zorder=zorder, visible=True)[0] |
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318 | except: |
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319 | self.inner_marker = self.axes.plot([x1/2.5],[y1/2.5], linestyle='', |
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320 | marker='s', markersize=10, |
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321 | color=self.color, alpha=0.6, |
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322 | label="pick", visible=True)[0] |
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323 | message = "\nTHIS PROTOTYPE NEEDS THE LATEST" |
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324 | message += " VERSION OF MATPLOTLIB\n Get the SVN version that" |
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325 | message += " is at least as recent as June 1, 2007" |
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326 | owner = self.base.base.parent |
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327 | wx.PostEvent(owner, |
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328 | StatusEvent(status="sectorSlicer: %s" % message)) |
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329 | |
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330 | ## Defining the current line |
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331 | self.line = self.axes.plot([x1, x2], [y1, y2], |
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332 | linestyle='-', marker='', |
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333 | color=self.color, visible=True)[0] |
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334 | ## Flag to differentiate the left line from the right line motion |
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335 | self.left_moving = False |
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336 | ## Flag to define a motion |
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337 | self.has_move = False |
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338 | ## connecting markers and draw the picture |
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339 | self.connect_markers([self.inner_marker, self.line]) |
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340 | |
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341 | def set_layer(self, n): |
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342 | """ |
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343 | Allow adding plot to the same panel |
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344 | |
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345 | :param n: the number of layer |
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346 | |
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347 | """ |
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348 | self.layernum = n |
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349 | self.update() |
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350 | |
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351 | def clear(self): |
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352 | """ |
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353 | Clear the slicer and all connected events related to this slicer |
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354 | """ |
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355 | self.clear_markers() |
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356 | try: |
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357 | self.line.remove() |
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358 | self.inner_marker.remove() |
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359 | except: |
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360 | # Old version of matplotlib |
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361 | for item in range(len(self.axes.lines)): |
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362 | del self.axes.lines[0] |
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363 | |
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364 | def update(self, phi=None, delta=None, mline=None, |
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365 | side=False, left= False, right=False): |
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366 | """ |
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367 | Draw oblique line |
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368 | |
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369 | :param phi: the phase between the middle line and the current line |
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370 | :param delta: phi/2 applied only when the mline was moved |
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371 | |
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372 | """ |
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373 | #print "update left or right ", self.has_move |
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374 | self.left_moving = left |
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375 | theta3 = 0 |
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376 | if phi != None: |
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377 | self.phi = phi |
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378 | if delta == None: |
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379 | delta = 0 |
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380 | if right: |
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381 | self.phi = -1 * math.fabs(self.phi) |
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382 | #delta=-delta |
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383 | else: |
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384 | self.phi = math.fabs(self.phi) |
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385 | if side: |
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386 | self.theta = mline.theta + self.phi |
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387 | |
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388 | if mline != None : |
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389 | if delta != 0: |
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390 | self.theta2 = mline + delta |
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391 | else: |
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392 | self.theta2 = mline.theta |
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393 | if delta == 0: |
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394 | theta3 = self.theta + delta |
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395 | else: |
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396 | theta3 = self.theta2 + delta |
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397 | x1 = self.radius * math.cos(theta3) |
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398 | y1 = self.radius * math.sin(theta3) |
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399 | x2 = -1 * self.radius * math.cos(theta3) |
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400 | y2 = -1 * self.radius * math.sin(theta3) |
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401 | self.inner_marker.set(xdata=[x1/2.5], ydata=[y1/2.5]) |
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402 | self.line.set(xdata=[x1, x2], ydata=[y1, y2]) |
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403 | |
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404 | def save(self, ev): |
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405 | """ |
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406 | Remember the roughness for this layer and the next so that we |
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407 | can restore on Esc. |
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408 | """ |
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409 | self.save_theta = self.theta |
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410 | self.base.freeze_axes() |
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411 | |
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412 | def moveend(self, ev): |
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413 | """ |
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414 | """ |
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415 | self.has_move = False |
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416 | self.base.moveend(ev) |
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417 | |
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418 | def restore(self): |
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419 | """ |
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420 | Restore the roughness for this layer. |
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421 | """ |
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422 | self.theta = self.save_theta |
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423 | |
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424 | def move(self, x, y, ev): |
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425 | """ |
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426 | Process move to a new position, making sure that the move is allowed. |
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427 | """ |
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428 | self.theta = math.atan2(y, x) |
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429 | self.has_move = True |
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430 | #ToDo: Simplify below |
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431 | if not self.left_moving: |
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432 | if self.theta2 - self.theta <= 0 and self.theta2 > 0: |
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433 | self.restore() |
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434 | return |
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435 | elif self.theta2 < 0 and self.theta < 0 and \ |
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436 | self.theta-self.theta2 >= 0: |
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437 | self.restore() |
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438 | return |
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439 | elif self.theta2 < 0 and self.theta > 0 and \ |
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440 | (self.theta2 + 2 * math.pi - self.theta) >= math.pi/2: |
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441 | #print "my theta", self.theta |
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442 | self.restore() |
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443 | return |
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444 | elif self.theta2 < 0 and self.theta < 0 and \ |
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445 | (self.theta2 - self.theta) >= math.pi/2: |
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446 | #print "my theta", self.theta |
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447 | self.restore() |
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448 | return |
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449 | elif self.theta2 > 0 and (self.theta2-self.theta >= math.pi/2 or \ |
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450 | (self.theta2-self.theta >= math.pi/2)): |
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451 | #print "self theta encore" |
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452 | self.restore() |
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453 | return |
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454 | else: |
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455 | #print "left move" |
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456 | if self.theta < 0 and (self.theta + math.pi*2-self.theta2) <= 0: |
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457 | self.restore() |
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458 | return |
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459 | elif self.theta2 < 0 and (self.theta-self.theta2) <= 0: |
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460 | self.restore() |
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461 | return |
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462 | elif self.theta > 0 and self.theta-self.theta2 <= 0: |
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463 | #print "my theta", self.theta |
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464 | self.restore() |
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465 | return |
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466 | elif self.theta-self.theta2 >= math.pi/2 or \ |
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467 | ((self.theta + math.pi * 2 - self.theta2) >= math.pi/2 and \ |
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468 | self.theta < 0 and self.theta2 > 0): |
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469 | #print "self theta encore" |
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470 | self.restore() |
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471 | return |
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472 | |
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473 | self.phi = math.fabs(self.theta2 - self.theta) |
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474 | if self.phi > math.pi: |
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475 | self.phi = 2 * math.pi - math.fabs(self.theta2 - self.theta) |
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476 | self.base.base.update() |
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477 | |
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478 | def set_cursor(self, x, y): |
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479 | """ |
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480 | """ |
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481 | self.move(x, y, None) |
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482 | self.update() |
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483 | |
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484 | def get_params(self): |
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485 | """ |
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486 | """ |
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487 | params = {} |
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488 | params["radius"] = self.radius |
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489 | params["theta"] = self.theta |
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490 | return params |
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491 | |
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492 | def set_params(self, params): |
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493 | """ |
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494 | """ |
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495 | x = params["radius"] |
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496 | self.set_cursor(x, self._inner_mouse_y) |
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497 | |
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498 | |
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499 | class LineInteractor(_BaseInteractor): |
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500 | """ |
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501 | Select an annulus through a 2D plot |
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502 | """ |
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503 | def __init__(self, base, axes, color='black', |
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504 | zorder=5, r=1.0, theta=math.pi/4): |
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505 | """ |
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506 | """ |
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507 | _BaseInteractor.__init__(self, base, axes, color=color) |
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508 | |
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509 | self.markers = [] |
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510 | self.axes = axes |
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511 | self.save_theta = theta |
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512 | self.theta= theta |
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513 | self.radius = r |
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514 | self.scale = 10.0 |
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515 | # Inner circle |
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516 | x1 = self.radius * math.cos(self.theta) |
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517 | y1 = self.radius * math.sin(self.theta) |
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518 | x2 = -1*self.radius * math.cos(self.theta) |
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519 | y2 = -1*self.radius * math.sin(self.theta) |
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520 | try: |
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521 | # Inner circle marker |
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522 | self.inner_marker = self.axes.plot([x1/2.5], [y1/2.5], linestyle='', |
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523 | marker='s', markersize=10, |
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524 | color=self.color, alpha=0.6, |
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525 | pickradius=5, label="pick", |
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526 | # Prefer this to other lines |
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527 | zorder=zorder, |
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528 | visible=True)[0] |
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529 | except: |
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530 | self.inner_marker = self.axes.plot([x1/2.5], [y1/2.5], linestyle='', |
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531 | marker='s', markersize=10, |
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532 | color=self.color, alpha=0.6, |
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533 | label="pick", |
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534 | visible=True)[0] |
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535 | message = "\nTHIS PROTOTYPE NEEDS THE LATEST VERSION" |
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536 | message += " OF MATPLOTLIB\n Get the SVN version that is at" |
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537 | message += " least as recent as June 1, 2007" |
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538 | self.line = self.axes.plot([x1, x2], [y1, y2], |
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539 | linestyle='-', marker='', |
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540 | color=self.color, visible=True)[0] |
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541 | self.npts = 20 |
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542 | self.has_move = False |
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543 | self.connect_markers([self.inner_marker, self.line]) |
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544 | self.update() |
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545 | |
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546 | def set_layer(self, n): |
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547 | """ |
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548 | """ |
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549 | self.layernum = n |
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550 | self.update() |
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551 | |
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552 | def clear(self): |
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553 | """ |
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554 | """ |
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555 | self.clear_markers() |
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556 | try: |
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557 | self.inner_marker.remove() |
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558 | self.line.remove() |
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559 | except: |
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560 | # Old version of matplotlib |
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561 | for item in range(len(self.axes.lines)): |
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562 | del self.axes.lines[0] |
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563 | |
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564 | def update(self, theta=None): |
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565 | """ |
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566 | Draw the new roughness on the graph. |
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567 | """ |
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568 | |
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569 | if theta != None: |
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570 | self.theta = theta |
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571 | x1 = self.radius * math.cos(self.theta) |
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572 | y1 = self.radius * math.sin(self.theta) |
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573 | x2 = -1 * self.radius * math.cos(self.theta) |
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574 | y2 = -1 * self.radius * math.sin(self.theta) |
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575 | |
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576 | self.inner_marker.set(xdata=[x1/2.5], ydata=[y1/2.5]) |
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577 | self.line.set(xdata=[x1, x2], ydata=[y1, y2]) |
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578 | |
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579 | def save(self, ev): |
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580 | """ |
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581 | Remember the roughness for this layer and the next so that we |
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582 | can restore on Esc. |
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583 | """ |
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584 | self.save_theta= self.theta |
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585 | self.base.freeze_axes() |
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586 | |
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587 | def moveend(self, ev): |
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588 | """ |
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589 | """ |
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590 | self.has_move = False |
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591 | self.base.moveend(ev) |
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592 | |
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593 | def restore(self): |
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594 | """ |
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595 | Restore the roughness for this layer. |
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596 | """ |
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597 | self.theta = self.save_theta |
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598 | |
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599 | def move(self, x, y, ev): |
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600 | """ |
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601 | Process move to a new position, making sure that the move is allowed. |
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602 | """ |
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603 | self.theta = math.atan2(y, x) |
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604 | self.has_move = True |
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605 | self.base.base.update() |
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606 | |
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607 | def set_cursor(self, x, y): |
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608 | """ |
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609 | """ |
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610 | self.move(x, y, None) |
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611 | self.update() |
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612 | |
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613 | def get_params(self): |
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614 | """ |
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615 | """ |
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616 | params = {} |
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617 | params["radius"] = self.radius |
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618 | params["theta"] = self.theta |
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619 | return params |
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620 | |
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621 | def set_params(self, params): |
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622 | """ |
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623 | """ |
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624 | x = params["radius"] |
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625 | self.set_cursor(x, self._inner_mouse_y) |
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626 | |
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