| 1 | import numpy |
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| 2 | from PyQt4 import QtGui |
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| 3 | from PyQt4 import QtCore |
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| 4 | |
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| 5 | from BaseInteractor import BaseInteractor |
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| 6 | from sas.qtgui.Plotting.PlotterData import Data1D |
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| 7 | import sas.qtgui.Utilities.GuiUtils as GuiUtils |
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| 8 | from sas.qtgui.Plotting.SlicerModel import SlicerModel |
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| 9 | |
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| 10 | |
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| 11 | class BoxInteractor(BaseInteractor, SlicerModel): |
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| 12 | """ |
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| 13 | BoxInteractor define a rectangle that return data1D average of Data2D |
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| 14 | in a rectangle area defined by -x, x ,y, -y |
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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 | BaseInteractor.__init__(self, base, axes, color=color) |
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| 18 | SlicerModel.__init__(self) |
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| 19 | # Class initialization |
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| 20 | self.markers = [] |
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| 21 | self.axes = axes |
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| 22 | self._item = item |
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| 23 | #connecting artist |
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| 24 | self.connect = self.base.connect |
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| 25 | # which direction is the preferred interaction direction |
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| 26 | self.direction = None |
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| 27 | # determine x y values |
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| 28 | self.x = 0.5 * min(numpy.fabs(self.base.data.xmax), |
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| 29 | numpy.fabs(self.base.data.xmin)) |
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| 30 | self.y = 0.5 * min(numpy.fabs(self.base.data.xmax), |
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| 31 | numpy.fabs(self.base.data.xmin)) |
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| 32 | # when reach qmax reset the graph |
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| 33 | self.qmax = max(self.base.data.xmax, self.base.data.xmin, |
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| 34 | self.base.data.ymax, self.base.data.ymin) |
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| 35 | # Number of points on the plot |
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| 36 | self.nbins = 30 |
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| 37 | # If True, I(|Q|) will be return, otherwise, |
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| 38 | # negative q-values are allowed |
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| 39 | self.fold = True |
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| 40 | # reference of the current Slab averaging |
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| 41 | self.averager = None |
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| 42 | # Create vertical and horizaontal lines for the rectangle |
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| 43 | self.vertical_lines = VerticalLines(self, |
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| 44 | self.axes, |
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| 45 | color='blue', |
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| 46 | zorder=zorder, |
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| 47 | y=self.y, |
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| 48 | x=self.x) |
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| 49 | self.vertical_lines.qmax = self.qmax |
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| 50 | |
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| 51 | self.horizontal_lines = HorizontalLines(self, |
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| 52 | self.axes, |
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| 53 | color='green', |
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| 54 | zorder=zorder, |
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| 55 | x=self.x, |
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| 56 | y=self.y) |
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| 57 | self.horizontal_lines.qmax = self.qmax |
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| 58 | # draw the rectangle and plost the data 1D resulting |
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| 59 | # of averaging data2D |
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| 60 | self.update() |
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| 61 | self._post_data() |
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| 62 | self.setModelFromParams() |
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| 63 | |
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| 64 | def update_and_post(self): |
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| 65 | """ |
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| 66 | Update the slicer and plot the resulting data |
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| 67 | """ |
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| 68 | self.update() |
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| 69 | self._post_data() |
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| 70 | |
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| 71 | def set_layer(self, n): |
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| 72 | """ |
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| 73 | Allow adding plot to the same panel |
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| 74 | |
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| 75 | :param n: the number of layer |
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| 76 | |
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| 77 | """ |
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| 78 | self.layernum = n |
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| 79 | self.update() |
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| 80 | |
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| 81 | def clear(self): |
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| 82 | """ |
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| 83 | Clear the slicer and all connected events related to this slicer |
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| 84 | """ |
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| 85 | self.averager = None |
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| 86 | self.clear_markers() |
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| 87 | self.horizontal_lines.clear() |
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| 88 | self.vertical_lines.clear() |
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| 89 | self.base.connect.clearall() |
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| 90 | |
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| 91 | def update(self): |
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| 92 | """ |
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| 93 | Respond to changes in the model by recalculating the profiles and |
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| 94 | resetting the widgets. |
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| 95 | """ |
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| 96 | # #Update the slicer if an horizontal line is dragged |
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| 97 | if self.horizontal_lines.has_move: |
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| 98 | self.horizontal_lines.update() |
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| 99 | self.vertical_lines.update(y=self.horizontal_lines.y) |
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| 100 | # #Update the slicer if a vertical line is dragged |
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| 101 | if self.vertical_lines.has_move: |
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| 102 | self.vertical_lines.update() |
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| 103 | self.horizontal_lines.update(x=self.vertical_lines.x) |
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| 104 | |
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| 105 | def save(self, ev): |
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| 106 | """ |
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| 107 | Remember the roughness for this layer and the next so that we |
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| 108 | can restore on Esc. |
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| 109 | """ |
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| 110 | self.vertical_lines.save(ev) |
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| 111 | self.horizontal_lines.save(ev) |
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| 112 | |
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| 113 | def _post_data(self): |
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| 114 | pass |
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| 115 | |
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| 116 | def post_data(self, new_slab=None, nbins=None, direction=None): |
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| 117 | """ |
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| 118 | post data averaging in Qx or Qy given new_slab type |
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| 119 | |
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| 120 | :param new_slab: slicer that determine with direction to average |
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| 121 | :param nbins: the number of points plotted when averaging |
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| 122 | :param direction: the direction of averaging |
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| 123 | |
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| 124 | """ |
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| 125 | if self.direction is None: |
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| 126 | self.direction = direction |
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| 127 | |
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| 128 | x_min = -1 * numpy.fabs(self.vertical_lines.x) |
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| 129 | x_max = numpy.fabs(self.vertical_lines.x) |
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| 130 | y_min = -1 * numpy.fabs(self.horizontal_lines.y) |
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| 131 | y_max = numpy.fabs(self.horizontal_lines.y) |
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| 132 | |
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| 133 | if nbins is not None: |
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| 134 | self.nbins = nbins |
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| 135 | if self.averager is None: |
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| 136 | if new_slab is None: |
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| 137 | msg = "post data:cannot average , averager is empty" |
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| 138 | raise ValueError, msg |
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| 139 | self.averager = new_slab |
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| 140 | if self.direction == "X": |
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| 141 | if self.fold: |
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| 142 | x_low = 0 |
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| 143 | else: |
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| 144 | x_low = numpy.fabs(x_min) |
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| 145 | bin_width = (x_max + x_low) / self.nbins |
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| 146 | elif self.direction == "Y": |
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| 147 | if self.fold: |
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| 148 | y_low = 0 |
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| 149 | else: |
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| 150 | y_low = numpy.fabs(y_min) |
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| 151 | bin_width = (y_max + y_low) / self.nbins |
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| 152 | else: |
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| 153 | msg = "post data:no Box Average direction was supplied" |
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| 154 | raise ValueError, msg |
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| 155 | # # Average data2D given Qx or Qy |
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| 156 | box = self.averager(x_min=x_min, x_max=x_max, y_min=y_min, y_max=y_max, |
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| 157 | bin_width=bin_width) |
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| 158 | box.fold = self.fold |
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| 159 | boxavg = box(self.base.data) |
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| 160 | # 3 Create Data1D to plot |
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| 161 | if hasattr(boxavg, "dxl"): |
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| 162 | dxl = boxavg.dxl |
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| 163 | else: |
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| 164 | dxl = None |
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| 165 | if hasattr(boxavg, "dxw"): |
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| 166 | dxw = boxavg.dxw |
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| 167 | else: |
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| 168 | dxw = None |
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| 169 | new_plot = Data1D(x=boxavg.x, y=boxavg.y, dy=boxavg.dy) |
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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 = str(self.averager.__name__) + \ |
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| 173 | "(" + self.base.data.name + ")" |
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| 174 | new_plot.title = str(self.averager.__name__) + \ |
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| 175 | "(" + self.base.data.name + ")" |
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| 176 | new_plot.source = self.base.data.source |
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| 177 | new_plot.interactive = True |
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| 178 | new_plot.detector = self.base.data.detector |
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| 179 | # # If the data file does not tell us what the axes are, just assume... |
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| 180 | new_plot.xaxis("\\rm{Q}", "A^{-1}") |
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| 181 | new_plot.yaxis("\\rm{Intensity} ", "cm^{-1}") |
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| 182 | |
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| 183 | data = self.base.data |
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| 184 | if hasattr(data, "scale") and data.scale == 'linear' and \ |
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| 185 | self.base.data.name.count("Residuals") > 0: |
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| 186 | new_plot.ytransform = 'y' |
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| 187 | new_plot.yaxis("\\rm{Residuals} ", "/") |
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| 188 | |
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| 189 | new_plot.group_id = "2daverage" + self.base.data.name |
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| 190 | new_plot.id = (self.averager.__name__) + self.base.data.name |
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| 191 | new_plot.is_data = True |
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| 192 | variant_plot = QtCore.QVariant(new_plot) |
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| 193 | GuiUtils.updateModelItemWithPlot(self._item, variant_plot, new_plot.id) |
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| 194 | |
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| 195 | if self.update_model: |
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| 196 | self.setModelFromParams() |
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| 197 | self.draw() |
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| 198 | |
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| 199 | def moveend(self, ev): |
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| 200 | """ |
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| 201 | Called after a dragging event. |
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| 202 | Post the slicer new parameters and creates a new Data1D |
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| 203 | corresponding to the new average |
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| 204 | """ |
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| 205 | self._post_data() |
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| 206 | |
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| 207 | def restore(self): |
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| 208 | """ |
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| 209 | Restore the roughness for this layer. |
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| 210 | """ |
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| 211 | self.horizontal_lines.restore() |
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| 212 | self.vertical_lines.restore() |
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| 213 | |
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| 214 | def move(self, x, y, ev): |
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| 215 | """ |
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| 216 | Process move to a new position, making sure that the move is allowed. |
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| 217 | """ |
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| 218 | pass |
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| 219 | |
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| 220 | def set_cursor(self, x, y): |
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| 221 | pass |
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| 222 | |
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| 223 | def getParams(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 | params["x_max"] = numpy.fabs(self.vertical_lines.x) |
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| 232 | params["y_max"] = numpy.fabs(self.horizontal_lines.y) |
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| 233 | params["nbins"] = self.nbins |
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| 234 | return params |
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| 235 | |
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| 236 | def setParams(self, params): |
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| 237 | """ |
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| 238 | Receive a dictionary and reset the slicer with values contained |
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| 239 | in the values of the dictionary. |
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| 240 | |
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| 241 | :param params: a dictionary containing name of slicer parameters and |
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| 242 | values the user assigned to the slicer. |
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| 243 | """ |
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| 244 | self.x = float(numpy.fabs(params["x_max"])) |
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| 245 | self.y = float(numpy.fabs(params["y_max"])) |
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| 246 | self.nbins = params["nbins"] |
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| 247 | |
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| 248 | self.horizontal_lines.update(x=self.x, y=self.y) |
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| 249 | self.vertical_lines.update(x=self.x, y=self.y) |
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| 250 | self.post_data(nbins=None) |
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| 251 | |
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| 252 | def draw(self): |
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| 253 | """ |
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| 254 | """ |
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| 255 | self.base.draw() |
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| 256 | |
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| 257 | |
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| 258 | class HorizontalLines(BaseInteractor): |
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| 259 | """ |
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| 260 | Draw 2 Horizontal lines centered on (0,0) that can move |
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| 261 | on the x- direction and in opposite direction |
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| 262 | """ |
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| 263 | def __init__(self, base, axes, color='black', zorder=5, x=0.5, y=0.5): |
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| 264 | """ |
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| 265 | """ |
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| 266 | BaseInteractor.__init__(self, base, axes, color=color) |
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| 267 | # Class initialization |
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| 268 | self.markers = [] |
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| 269 | self.axes = axes |
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| 270 | # Saving the end points of two lines |
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| 271 | self.x = x |
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| 272 | self.save_x = x |
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| 273 | |
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| 274 | self.y = y |
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| 275 | self.save_y = y |
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| 276 | # Creating a marker |
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| 277 | # Inner circle marker |
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| 278 | self.inner_marker = self.axes.plot([0], [self.y], linestyle='', |
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| 279 | marker='s', markersize=10, |
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| 280 | color=self.color, alpha=0.6, |
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| 281 | pickradius=5, label="pick", |
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| 282 | zorder=zorder, |
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| 283 | visible=True)[0] |
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| 284 | # Define 2 horizontal lines |
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| 285 | self.top_line = self.axes.plot([self.x, -self.x], [self.y, self.y], |
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| 286 | linestyle='-', marker='', |
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| 287 | color=self.color, visible=True)[0] |
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| 288 | self.bottom_line = self.axes.plot([self.x, -self.x], [-self.y, -self.y], |
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| 289 | linestyle='-', marker='', |
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| 290 | color=self.color, visible=True)[0] |
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| 291 | # Flag to check the motion of the lines |
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| 292 | self.has_move = False |
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| 293 | # Connecting markers to mouse events and draw |
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| 294 | self.connect_markers([self.top_line, self.inner_marker]) |
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| 295 | self.update() |
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| 296 | |
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| 297 | def set_layer(self, n): |
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| 298 | """ |
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| 299 | Allow adding plot to the same panel |
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| 300 | |
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| 301 | :param n: the number of layer |
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| 302 | |
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| 303 | """ |
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| 304 | self.layernum = n |
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| 305 | self.update() |
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| 306 | |
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| 307 | def clear(self): |
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| 308 | """ |
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| 309 | Clear this slicer and its markers |
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| 310 | """ |
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| 311 | self.clear_markers() |
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| 312 | self.inner_marker.remove() |
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| 313 | self.top_line.remove() |
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| 314 | self.bottom_line.remove() |
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| 315 | |
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| 316 | def update(self, x=None, y=None): |
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| 317 | """ |
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| 318 | Draw the new roughness on the graph. |
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| 319 | |
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| 320 | :param x: x-coordinates to reset current class x |
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| 321 | :param y: y-coordinates to reset current class y |
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| 322 | |
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| 323 | """ |
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| 324 | # Reset x, y- coordinates if send as parameters |
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| 325 | if x is not None: |
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| 326 | self.x = numpy.sign(self.x) * numpy.fabs(x) |
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| 327 | if y is not None: |
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| 328 | self.y = numpy.sign(self.y) * numpy.fabs(y) |
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| 329 | # Draw lines and markers |
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| 330 | self.inner_marker.set(xdata=[0], ydata=[self.y]) |
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| 331 | self.top_line.set(xdata=[self.x, -self.x], ydata=[self.y, self.y]) |
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| 332 | self.bottom_line.set(xdata=[self.x, -self.x], ydata=[-self.y, -self.y]) |
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| 333 | |
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| 334 | def save(self, ev): |
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| 335 | """ |
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| 336 | Remember the roughness for this layer and the next so that we |
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| 337 | can restore on Esc. |
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| 338 | """ |
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| 339 | self.save_x = self.x |
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| 340 | self.save_y = self.y |
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| 341 | |
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| 342 | def moveend(self, ev): |
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| 343 | """ |
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| 344 | Called after a dragging this edge and set self.has_move to False |
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| 345 | to specify the end of dragging motion |
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| 346 | """ |
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| 347 | self.has_move = False |
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| 348 | self.base.moveend(ev) |
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| 349 | |
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| 350 | def restore(self): |
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| 351 | """ |
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| 352 | Restore the roughness for this layer. |
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| 353 | """ |
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| 354 | self.x = self.save_x |
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| 355 | self.y = self.save_y |
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| 356 | |
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| 357 | def move(self, x, y, ev): |
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| 358 | """ |
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| 359 | Process move to a new position, making sure that the move is allowed. |
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| 360 | """ |
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| 361 | self.y = y |
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| 362 | self.has_move = True |
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| 363 | self.base.base.update() |
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| 364 | |
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| 365 | |
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| 366 | class VerticalLines(BaseInteractor): |
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| 367 | """ |
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| 368 | Select an annulus through a 2D plot |
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| 369 | """ |
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| 370 | def __init__(self, base, axes, color='black', zorder=5, x=0.5, y=0.5): |
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| 371 | """ |
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| 372 | """ |
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| 373 | BaseInteractor.__init__(self, base, axes, color=color) |
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| 374 | self.markers = [] |
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| 375 | self.axes = axes |
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| 376 | self.x = numpy.fabs(x) |
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| 377 | self.save_x = self.x |
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| 378 | self.y = numpy.fabs(y) |
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| 379 | self.save_y = y |
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| 380 | # Inner circle marker |
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| 381 | self.inner_marker = self.axes.plot([self.x], [0], linestyle='', |
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| 382 | marker='s', markersize=10, |
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| 383 | color=self.color, alpha=0.6, |
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| 384 | pickradius=5, label="pick", |
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| 385 | zorder=zorder, visible=True)[0] |
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| 386 | self.right_line = self.axes.plot([self.x, self.x], |
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| 387 | [self.y, -self.y], |
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| 388 | linestyle='-', marker='', |
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| 389 | color=self.color, visible=True)[0] |
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| 390 | self.left_line = self.axes.plot([-self.x, -self.x], |
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| 391 | [self.y, -self.y], |
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| 392 | linestyle='-', marker='', |
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| 393 | color=self.color, visible=True)[0] |
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| 394 | self.has_move = False |
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| 395 | self.connect_markers([self.right_line, self.inner_marker]) |
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| 396 | self.update() |
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| 397 | |
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| 398 | def set_layer(self, n): |
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| 399 | """ |
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| 400 | Allow adding plot to the same panel |
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| 401 | |
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| 402 | :param n: the number of layer |
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| 403 | |
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| 404 | """ |
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| 405 | self.layernum = n |
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| 406 | self.update() |
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| 407 | |
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| 408 | def clear(self): |
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| 409 | """ |
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| 410 | Clear this slicer and its markers |
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| 411 | """ |
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| 412 | self.clear_markers() |
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| 413 | self.inner_marker.remove() |
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| 414 | self.left_line.remove() |
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| 415 | self.right_line.remove() |
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| 416 | |
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| 417 | def update(self, x=None, y=None): |
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| 418 | """ |
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| 419 | Draw the new roughness on the graph. |
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| 420 | |
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| 421 | :param x: x-coordinates to reset current class x |
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| 422 | :param y: y-coordinates to reset current class y |
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| 423 | |
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| 424 | """ |
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| 425 | # Reset x, y -coordinates if given as parameters |
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| 426 | if x is not None: |
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| 427 | self.x = numpy.sign(self.x) * numpy.fabs(x) |
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| 428 | if y is not None: |
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| 429 | self.y = numpy.sign(self.y) * numpy.fabs(y) |
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| 430 | # Draw lines and markers |
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| 431 | self.inner_marker.set(xdata=[self.x], ydata=[0]) |
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| 432 | self.left_line.set(xdata=[-self.x, -self.x], ydata=[self.y, -self.y]) |
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| 433 | self.right_line.set(xdata=[self.x, self.x], ydata=[self.y, -self.y]) |
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| 434 | |
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| 435 | def save(self, ev): |
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| 436 | """ |
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| 437 | Remember the roughness for this layer and the next so that we |
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| 438 | can restore on Esc. |
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| 439 | """ |
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| 440 | self.save_x = self.x |
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| 441 | self.save_y = self.y |
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| 442 | |
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| 443 | def moveend(self, ev): |
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| 444 | """ |
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| 445 | Called after a dragging this edge and set self.has_move to False |
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| 446 | to specify the end of dragging motion |
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| 447 | """ |
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| 448 | self.has_move = False |
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| 449 | self.base.moveend(ev) |
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| 450 | |
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| 451 | def restore(self): |
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| 452 | """ |
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| 453 | Restore the roughness for this layer. |
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| 454 | """ |
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| 455 | self.x = self.save_x |
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| 456 | self.y = self.save_y |
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| 457 | |
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| 458 | def move(self, x, y, ev): |
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| 459 | """ |
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| 460 | Process move to a new position, making sure that the move is allowed. |
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| 461 | """ |
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| 462 | self.has_move = True |
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| 463 | self.x = x |
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| 464 | self.base.base.update() |
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| 465 | |
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| 466 | |
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| 467 | class BoxInteractorX(BoxInteractor): |
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| 468 | """ |
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| 469 | Average in Qx direction |
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| 470 | """ |
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| 471 | def __init__(self, base, axes, item=None, color='black', zorder=3): |
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| 472 | BoxInteractor.__init__(self, base, axes, item=item, color=color) |
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| 473 | self.base = base |
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| 474 | self._post_data() |
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| 475 | |
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| 476 | def _post_data(self): |
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| 477 | """ |
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| 478 | Post data creating by averaging in Qx direction |
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| 479 | """ |
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| 480 | from sas.sascalc.dataloader.manipulations import SlabX |
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| 481 | self.post_data(SlabX, direction="X") |
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| 482 | |
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| 483 | |
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| 484 | class BoxInteractorY(BoxInteractor): |
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| 485 | """ |
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| 486 | Average in Qy direction |
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| 487 | """ |
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| 488 | def __init__(self, base, axes, item=None, color='black', zorder=3): |
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| 489 | BoxInteractor.__init__(self, base, axes, item=item, color=color) |
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| 490 | self.base = base |
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| 491 | self._post_data() |
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| 492 | |
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| 493 | def _post_data(self): |
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| 494 | """ |
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| 495 | Post data creating by averaging in Qy direction |
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| 496 | """ |
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| 497 | from sas.sascalc.dataloader.manipulations import SlabY |
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| 498 | self.post_data(SlabY, direction="Y") |
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| 499 | |
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