[959eb01] | 1 | """ |
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| 2 | Sector interactor |
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| 3 | """ |
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| 4 | import math |
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[5251ec6] | 5 | |
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[959eb01] | 6 | import wx |
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[5251ec6] | 7 | |
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[959eb01] | 8 | from sas.sasgui.guiframe.events import NewPlotEvent |
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| 9 | from sas.sasgui.guiframe.events import StatusEvent |
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| 10 | from sas.sasgui.guiframe.events import SlicerParameterEvent |
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| 11 | from sas.sasgui.guiframe.events import EVT_SLICER_PARS |
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| 12 | from sas.sasgui.guiframe.dataFitting import Data1D |
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| 13 | |
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[5251ec6] | 14 | from .BaseInteractor import _BaseInteractor |
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| 15 | |
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[959eb01] | 16 | |
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| 17 | class SectorInteractor(_BaseInteractor): |
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| 18 | """ |
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| 19 | Draw a sector slicer.Allow to performQ averaging on data 2D |
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| 20 | """ |
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| 21 | def __init__(self, base, axes, color='black', zorder=3): |
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| 22 | |
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| 23 | _BaseInteractor.__init__(self, base, axes, color=color) |
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| 24 | ## Class initialization |
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| 25 | self.markers = [] |
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| 26 | self.axes = axes |
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| 27 | ## connect the plot to event |
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| 28 | self.connect = self.base.connect |
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| 29 | |
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| 30 | ## compute qmax limit to reset the graph |
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| 31 | x = math.pow(max(self.base.data2D.xmax, |
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| 32 | math.fabs(self.base.data2D.xmin)), 2) |
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| 33 | y = math.pow(max(self.base.data2D.ymax, |
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| 34 | math.fabs(self.base.data2D.ymin)), 2) |
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| 35 | self.qmax = math.sqrt(x + y) |
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| 36 | ## Number of points on the plot |
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| 37 | self.nbins = 20 |
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| 38 | ## Angle of the middle line |
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| 39 | self.theta2 = math.pi / 3 |
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| 40 | ## Absolute value of the Angle between the middle line and any side line |
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| 41 | self.phi = math.pi / 12 |
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[8de66b6] | 42 | # Binning base for log/lin binning |
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| 43 | self.bin_base = 0 |
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[959eb01] | 44 | ## Middle line |
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| 45 | self.main_line = LineInteractor(self, self.base.subplot, color='blue', |
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| 46 | zorder=zorder, r=self.qmax, |
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| 47 | theta=self.theta2) |
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| 48 | self.main_line.qmax = self.qmax |
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| 49 | ## Right Side line |
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| 50 | self.right_line = SideInteractor(self, self.base.subplot, color='black', |
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| 51 | zorder=zorder, r=self.qmax, |
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| 52 | phi=-1 * self.phi, theta2=self.theta2) |
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| 53 | self.right_line.qmax = self.qmax |
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| 54 | ## Left Side line |
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| 55 | self.left_line = SideInteractor(self, self.base.subplot, color='black', |
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| 56 | zorder=zorder, r=self.qmax, |
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| 57 | phi=self.phi, theta2=self.theta2) |
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| 58 | self.left_line.qmax = self.qmax |
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| 59 | ## draw the sector |
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| 60 | self.update() |
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| 61 | self._post_data() |
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| 62 | ## Bind to slice parameter events |
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| 63 | self.base.Bind(EVT_SLICER_PARS, self._onEVT_SLICER_PARS) |
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| 64 | |
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| 65 | def _onEVT_SLICER_PARS(self, event): |
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| 66 | """ |
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| 67 | receive an event containing parameters values to reset the slicer |
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| 68 | |
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| 69 | :param event: event of type SlicerParameterEvent with params as |
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| 70 | attribute |
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| 71 | |
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| 72 | """ |
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| 73 | wx.PostEvent(self.base.parent, |
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| 74 | StatusEvent(status="SectorSlicer._onEVT_SLICER_PARS")) |
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| 75 | event.Skip() |
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| 76 | if event.type == self.__class__.__name__: |
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| 77 | self.set_params(event.params) |
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| 78 | self.base.update() |
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| 79 | |
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| 80 | def set_layer(self, n): |
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| 81 | """ |
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| 82 | Allow adding plot to the same panel |
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| 83 | |
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| 84 | :param n: the number of layer |
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| 85 | |
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| 86 | """ |
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| 87 | self.layernum = n |
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| 88 | self.update() |
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| 89 | |
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| 90 | def clear(self): |
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| 91 | """ |
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| 92 | Clear the slicer and all connected events related to this slicer |
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| 93 | """ |
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| 94 | self.clear_markers() |
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| 95 | self.main_line.clear() |
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| 96 | self.left_line.clear() |
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| 97 | self.right_line.clear() |
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| 98 | self.base.connect.clearall() |
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| 99 | self.base.Unbind(EVT_SLICER_PARS) |
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| 100 | |
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| 101 | def update(self): |
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| 102 | """ |
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| 103 | Respond to changes in the model by recalculating the profiles and |
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| 104 | resetting the widgets. |
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| 105 | """ |
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| 106 | # Update locations |
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| 107 | ## Check if the middle line was dragged and |
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| 108 | #update the picture accordingly |
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| 109 | if self.main_line.has_move: |
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| 110 | self.main_line.update() |
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| 111 | self.right_line.update(delta=-self.left_line.phi / 2, |
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| 112 | mline=self.main_line.theta) |
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| 113 | self.left_line.update(delta=self.left_line.phi / 2, |
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| 114 | mline=self.main_line.theta) |
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| 115 | ## Check if the left side has moved and update the slicer accordingly |
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| 116 | if self.left_line.has_move: |
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| 117 | self.main_line.update() |
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| 118 | self.left_line.update(phi=None, delta=None, mline=self.main_line, |
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| 119 | side=True, left=True) |
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| 120 | self.right_line.update(phi=self.left_line.phi, delta=None, |
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| 121 | mline=self.main_line, side=True, |
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| 122 | left=False, right=True) |
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| 123 | ## Check if the right side line has moved and |
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| 124 | #update the slicer accordingly |
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| 125 | if self.right_line.has_move: |
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| 126 | self.main_line.update() |
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| 127 | self.right_line.update(phi=None, delta=None, mline=self.main_line, |
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| 128 | side=True, left=False, right=True) |
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| 129 | self.left_line.update(phi=self.right_line.phi, delta=None, |
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| 130 | mline=self.main_line, side=True, left=False) |
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| 131 | |
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| 132 | def save(self, ev): |
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| 133 | """ |
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| 134 | Remember the roughness for this layer and the next so that we |
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| 135 | can restore on Esc. |
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| 136 | """ |
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| 137 | self.base.freeze_axes() |
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| 138 | self.main_line.save(ev) |
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| 139 | self.right_line.save(ev) |
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| 140 | self.left_line.save(ev) |
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| 141 | |
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| 142 | def _post_data(self, nbins=None): |
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| 143 | """ |
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| 144 | compute sector averaging of data2D into data1D |
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| 145 | |
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| 146 | :param nbins: the number of point to plot for the average 1D data |
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| 147 | """ |
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| 148 | ## get the data2D to average |
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| 149 | data = self.base.data2D |
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| 150 | # If we have no data, just return |
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[235f514] | 151 | if data is None: |
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[959eb01] | 152 | return |
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| 153 | ## Averaging |
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| 154 | from sas.sascalc.dataloader.manipulations import SectorQ |
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| 155 | radius = self.qmax |
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| 156 | phimin = -self.left_line.phi + self.main_line.theta |
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| 157 | phimax = self.left_line.phi + self.main_line.theta |
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[8de66b6] | 158 | bin_base = self.bin_base |
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[235f514] | 159 | if nbins is None: |
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[959eb01] | 160 | nbins = 20 |
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| 161 | sect = SectorQ(r_min=0.0, r_max=radius, |
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| 162 | phi_min=phimin + math.pi, |
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[8de66b6] | 163 | phi_max=phimax + math.pi, nbins=nbins, base=bin_base) |
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[959eb01] | 164 | |
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| 165 | sector = sect(self.base.data2D) |
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| 166 | ##Create 1D data resulting from average |
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| 167 | |
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| 168 | if hasattr(sector, "dxl"): |
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| 169 | dxl = sector.dxl |
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| 170 | else: |
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| 171 | dxl = None |
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| 172 | if hasattr(sector, "dxw"): |
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| 173 | dxw = sector.dxw |
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| 174 | else: |
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| 175 | dxw = None |
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| 176 | new_plot = Data1D(x=sector.x, y=sector.y, dy=sector.dy, dx=sector.dx) |
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| 177 | new_plot.dxl = dxl |
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| 178 | new_plot.dxw = dxw |
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| 179 | new_plot.name = "SectorQ" + "(" + self.base.data2D.name + ")" |
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| 180 | new_plot.source = self.base.data2D.source |
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| 181 | #new_plot.info=self.base.data2D.info |
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| 182 | new_plot.interactive = True |
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| 183 | new_plot.detector = self.base.data2D.detector |
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| 184 | ## If the data file does not tell us what the axes are, just assume... |
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| 185 | new_plot.xaxis("\\rm{Q}", "A^{-1}") |
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| 186 | new_plot.yaxis("\\rm{Intensity}", "cm^{-1}") |
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| 187 | if hasattr(data, "scale") and data.scale == 'linear' and \ |
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| 188 | self.base.data2D.name.count("Residuals") > 0: |
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| 189 | new_plot.ytransform = 'y' |
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| 190 | new_plot.yaxis("\\rm{Residuals} ", "/") |
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| 191 | |
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| 192 | new_plot.group_id = "2daverage" + self.base.data2D.name |
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| 193 | new_plot.id = "SectorQ" + self.base.data2D.name |
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| 194 | new_plot.is_data = True |
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| 195 | self.base.parent.update_theory(data_id=data.id, theory=new_plot) |
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| 196 | wx.PostEvent(self.base.parent, |
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| 197 | NewPlotEvent(plot=new_plot, title="SectorQ" + self.base.data2D.name)) |
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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 a dragging motion ends.Get slicer event |
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| 202 | """ |
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| 203 | self.base.thaw_axes() |
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| 204 | ## Post parameters |
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| 205 | event = SlicerParameterEvent() |
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| 206 | event.type = self.__class__.__name__ |
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| 207 | event.params = self.get_params() |
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| 208 | ## Send slicer paramers to plotter2D |
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| 209 | wx.PostEvent(self.base, event) |
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| 210 | |
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| 211 | def restore(self): |
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| 212 | """ |
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| 213 | Restore the roughness for this layer. |
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| 214 | """ |
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| 215 | self.main_line.restore() |
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| 216 | self.left_line.restore() |
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| 217 | self.right_line.restore() |
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| 218 | |
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| 219 | def move(self, x, y, ev): |
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| 220 | """ |
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| 221 | Process move to a new position, making sure that the move is allowed. |
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| 222 | """ |
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| 223 | pass |
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| 224 | |
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| 225 | def set_cursor(self, x, y): |
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| 226 | """ |
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| 227 | """ |
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| 228 | pass |
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| 229 | |
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| 230 | def get_params(self): |
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| 231 | """ |
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| 232 | Store a copy of values of parameters of the slicer into a dictionary. |
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| 233 | |
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| 234 | :return params: the dictionary created |
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| 235 | |
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| 236 | """ |
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| 237 | params = {} |
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| 238 | ## Always make sure that the left and the right line are at phi |
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| 239 | ## angle of the middle line |
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| 240 | if math.fabs(self.left_line.phi) != math.fabs(self.right_line.phi): |
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| 241 | msg = "Phi left and phi right are different" |
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| 242 | msg += " %f, %f" % (self.left_line.phi, self.right_line.phi) |
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[5251ec6] | 243 | raise ValueError(msg) |
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[959eb01] | 244 | params["Phi [deg]"] = self.main_line.theta * 180 / math.pi |
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| 245 | params["Delta_Phi [deg]"] = math.fabs(self.left_line.phi * 180 / math.pi) |
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| 246 | params["nbins"] = self.nbins |
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[8de66b6] | 247 | params["binning base"] = self.bin_base |
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[959eb01] | 248 | return params |
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| 249 | |
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| 250 | def set_params(self, params): |
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| 251 | """ |
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| 252 | Receive a dictionary and reset the slicer with values contained |
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| 253 | in the values of the dictionary. |
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| 254 | |
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| 255 | :param params: a dictionary containing name of slicer parameters and |
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| 256 | values the user assigned to the slicer. |
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| 257 | """ |
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| 258 | main = params["Phi [deg]"] * math.pi / 180 |
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| 259 | phi = math.fabs(params["Delta_Phi [deg]"] * math.pi / 180) |
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| 260 | self.nbins = int(params["nbins"]) |
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[8de66b6] | 261 | self.bin_base = params["binning base"] |
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[959eb01] | 262 | self.main_line.theta = main |
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| 263 | ## Reset the slicer parameters |
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| 264 | self.main_line.update() |
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| 265 | self.right_line.update(phi=phi, delta=None, mline=self.main_line, |
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| 266 | side=True, right=True) |
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| 267 | self.left_line.update(phi=phi, delta=None, |
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| 268 | mline=self.main_line, side=True) |
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| 269 | ## post the new corresponding data |
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| 270 | self._post_data(nbins=self.nbins) |
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| 271 | |
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| 272 | def freeze_axes(self): |
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| 273 | """ |
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| 274 | """ |
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| 275 | self.base.freeze_axes() |
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| 276 | |
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| 277 | def thaw_axes(self): |
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| 278 | """ |
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| 279 | """ |
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| 280 | self.base.thaw_axes() |
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| 281 | |
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| 282 | def draw(self): |
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| 283 | """ |
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| 284 | """ |
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| 285 | self.base.draw() |
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| 286 | |
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| 287 | |
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| 288 | class SideInteractor(_BaseInteractor): |
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| 289 | """ |
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| 290 | Draw an oblique line |
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| 291 | |
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| 292 | :param phi: the phase between the middle line and one side line |
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| 293 | :param theta2: the angle between the middle line and x- axis |
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| 294 | |
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| 295 | """ |
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| 296 | def __init__(self, base, axes, color='black', zorder=5, r=1.0, |
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| 297 | phi=math.pi / 4, theta2=math.pi / 3): |
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| 298 | """ |
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| 299 | """ |
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| 300 | _BaseInteractor.__init__(self, base, axes, color=color) |
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| 301 | ## Initialize the class |
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| 302 | self.markers = [] |
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| 303 | self.axes = axes |
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| 304 | ## compute the value of the angle between the current line and |
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| 305 | ## the x-axis |
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| 306 | self.save_theta = theta2 + phi |
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| 307 | self.theta = theta2 + phi |
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| 308 | ## the value of the middle line angle with respect to the x-axis |
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| 309 | self.theta2 = theta2 |
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| 310 | ## Radius to find polar coordinates this line's endpoints |
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| 311 | self.radius = r |
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| 312 | ## phi is the phase between the current line and the middle line |
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| 313 | self.phi = phi |
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| 314 | ## End points polar coordinates |
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| 315 | x1 = self.radius * math.cos(self.theta) |
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| 316 | y1 = self.radius * math.sin(self.theta) |
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| 317 | x2 = -1 * self.radius * math.cos(self.theta) |
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| 318 | y2 = -1 * self.radius * math.sin(self.theta) |
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| 319 | ## defining a new marker |
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| 320 | self.inner_marker = self.axes.plot([x1 / 2.5], [y1 / 2.5], linestyle='', |
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| 321 | marker='s', markersize=10, |
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| 322 | color=self.color, alpha=0.6, |
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| 323 | pickradius=5, label="pick", |
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| 324 | zorder=zorder, visible=True)[0] |
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| 325 | |
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| 326 | ## Defining the current line |
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| 327 | self.line = self.axes.plot([x1, x2], [y1, y2], |
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| 328 | linestyle='-', marker='', |
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| 329 | color=self.color, visible=True)[0] |
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| 330 | ## Flag to differentiate the left line from the right line motion |
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| 331 | self.left_moving = False |
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| 332 | ## Flag to define a motion |
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| 333 | self.has_move = False |
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| 334 | ## connecting markers and draw the picture |
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| 335 | self.connect_markers([self.inner_marker, self.line]) |
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| 336 | |
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| 337 | def set_layer(self, n): |
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| 338 | """ |
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| 339 | Allow adding plot to the same panel |
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| 340 | |
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| 341 | :param n: the number of layer |
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| 342 | |
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| 343 | """ |
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| 344 | self.layernum = n |
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| 345 | self.update() |
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| 346 | |
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| 347 | def clear(self): |
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| 348 | """ |
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| 349 | Clear the slicer and all connected events related to this slicer |
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| 350 | """ |
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| 351 | self.clear_markers() |
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| 352 | try: |
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| 353 | self.line.remove() |
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| 354 | self.inner_marker.remove() |
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| 355 | except: |
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| 356 | # Old version of matplotlib |
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| 357 | for item in range(len(self.axes.lines)): |
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| 358 | del self.axes.lines[0] |
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| 359 | |
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| 360 | def update(self, phi=None, delta=None, mline=None, |
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| 361 | side=False, left=False, right=False): |
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| 362 | """ |
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| 363 | Draw oblique line |
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| 364 | |
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| 365 | :param phi: the phase between the middle line and the current line |
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| 366 | :param delta: phi/2 applied only when the mline was moved |
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| 367 | |
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| 368 | """ |
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| 369 | #print "update left or right ", self.has_move |
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| 370 | self.left_moving = left |
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| 371 | theta3 = 0 |
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[7432acb] | 372 | if phi is not None: |
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[959eb01] | 373 | self.phi = phi |
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[235f514] | 374 | if delta is None: |
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[959eb01] | 375 | delta = 0 |
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| 376 | if right: |
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| 377 | self.phi = -1 * math.fabs(self.phi) |
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| 378 | #delta=-delta |
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| 379 | else: |
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| 380 | self.phi = math.fabs(self.phi) |
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| 381 | if side: |
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| 382 | self.theta = mline.theta + self.phi |
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| 383 | |
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[7432acb] | 384 | if mline is not None: |
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[959eb01] | 385 | if delta != 0: |
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| 386 | self.theta2 = mline + delta |
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| 387 | else: |
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| 388 | self.theta2 = mline.theta |
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| 389 | if delta == 0: |
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| 390 | theta3 = self.theta + delta |
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| 391 | else: |
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| 392 | theta3 = self.theta2 + delta |
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| 393 | x1 = self.radius * math.cos(theta3) |
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| 394 | y1 = self.radius * math.sin(theta3) |
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| 395 | x2 = -1 * self.radius * math.cos(theta3) |
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| 396 | y2 = -1 * self.radius * math.sin(theta3) |
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| 397 | self.inner_marker.set(xdata=[x1 / 2.5], ydata=[y1 / 2.5]) |
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| 398 | self.line.set(xdata=[x1, x2], ydata=[y1, y2]) |
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| 399 | |
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| 400 | def save(self, ev): |
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| 401 | """ |
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| 402 | Remember the roughness for this layer and the next so that we |
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| 403 | can restore on Esc. |
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| 404 | """ |
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| 405 | self.save_theta = self.theta |
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| 406 | self.base.freeze_axes() |
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| 407 | |
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| 408 | def moveend(self, ev): |
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| 409 | """ |
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| 410 | """ |
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| 411 | self.has_move = False |
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| 412 | self.base.moveend(ev) |
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| 413 | |
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| 414 | def restore(self): |
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| 415 | """ |
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| 416 | Restore the roughness for this layer. |
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| 417 | """ |
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| 418 | self.theta = self.save_theta |
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| 419 | |
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| 420 | def move(self, x, y, ev): |
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| 421 | """ |
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| 422 | Process move to a new position, making sure that the move is allowed. |
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| 423 | """ |
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| 424 | self.theta = math.atan2(y, x) |
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| 425 | self.has_move = True |
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| 426 | #ToDo: Simplify below |
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| 427 | if not self.left_moving: |
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| 428 | if self.theta2 - self.theta <= 0 and self.theta2 > 0: |
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| 429 | self.restore() |
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| 430 | return |
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| 431 | elif self.theta2 < 0 and self.theta < 0 and \ |
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| 432 | self.theta - 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.theta2 + 2 * math.pi - self.theta) >= math.pi / 2: |
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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 - self.theta) >= math.pi / 2: |
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| 441 | self.restore() |
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| 442 | return |
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| 443 | elif self.theta2 > 0 and (self.theta2 - self.theta >= math.pi / 2 or \ |
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| 444 | (self.theta2 - self.theta >= math.pi / 2)): |
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| 445 | self.restore() |
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| 446 | return |
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| 447 | else: |
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| 448 | if self.theta < 0 and (self.theta + math.pi * 2 - self.theta2) <= 0: |
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| 449 | self.restore() |
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| 450 | return |
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| 451 | elif self.theta2 < 0 and (self.theta - self.theta2) <= 0: |
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| 452 | self.restore() |
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| 453 | return |
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| 454 | elif self.theta > 0 and self.theta - self.theta2 <= 0: |
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| 455 | self.restore() |
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| 456 | return |
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| 457 | elif self.theta - self.theta2 >= math.pi / 2 or \ |
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| 458 | ((self.theta + math.pi * 2 - self.theta2) >= math.pi / 2 and \ |
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| 459 | self.theta < 0 and self.theta2 > 0): |
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| 460 | self.restore() |
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| 461 | return |
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| 462 | |
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| 463 | self.phi = math.fabs(self.theta2 - self.theta) |
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| 464 | if self.phi > math.pi: |
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| 465 | self.phi = 2 * math.pi - math.fabs(self.theta2 - self.theta) |
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| 466 | self.base.base.update() |
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| 467 | |
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| 468 | def set_cursor(self, x, y): |
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| 469 | """ |
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| 470 | """ |
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| 471 | self.move(x, y, None) |
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| 472 | self.update() |
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| 473 | |
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| 474 | def get_params(self): |
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| 475 | """ |
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| 476 | """ |
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| 477 | params = {} |
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| 478 | params["radius"] = self.radius |
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| 479 | params["theta"] = self.theta |
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| 480 | return params |
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| 481 | |
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| 482 | def set_params(self, params): |
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| 483 | """ |
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| 484 | """ |
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| 485 | x = params["radius"] |
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| 486 | self.set_cursor(x, None) |
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| 487 | |
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| 488 | |
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| 489 | class LineInteractor(_BaseInteractor): |
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| 490 | """ |
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| 491 | Select an annulus through a 2D plot |
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| 492 | """ |
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| 493 | def __init__(self, base, axes, color='black', |
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| 494 | zorder=5, r=1.0, theta=math.pi / 4): |
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| 495 | """ |
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| 496 | """ |
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| 497 | _BaseInteractor.__init__(self, base, axes, color=color) |
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| 498 | |
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| 499 | self.markers = [] |
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| 500 | self.axes = axes |
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| 501 | self.save_theta = theta |
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| 502 | self.theta = theta |
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| 503 | self.radius = r |
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| 504 | self.scale = 10.0 |
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| 505 | # Inner circle |
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| 506 | x1 = self.radius * math.cos(self.theta) |
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| 507 | y1 = self.radius * math.sin(self.theta) |
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| 508 | x2 = -1 * self.radius * math.cos(self.theta) |
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| 509 | y2 = -1 * self.radius * math.sin(self.theta) |
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| 510 | # Inner circle marker |
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| 511 | self.inner_marker = self.axes.plot([x1 / 2.5], [y1 / 2.5], linestyle='', |
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| 512 | marker='s', markersize=10, |
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| 513 | color=self.color, alpha=0.6, |
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| 514 | pickradius=5, label="pick", |
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| 515 | zorder=zorder, |
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| 516 | visible=True)[0] |
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| 517 | self.line = self.axes.plot([x1, x2], [y1, y2], |
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| 518 | linestyle='-', marker='', |
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| 519 | color=self.color, visible=True)[0] |
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| 520 | self.npts = 20 |
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| 521 | self.has_move = False |
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| 522 | self.connect_markers([self.inner_marker, self.line]) |
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| 523 | self.update() |
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| 524 | |
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| 525 | def set_layer(self, n): |
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| 526 | """ |
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| 527 | """ |
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| 528 | self.layernum = n |
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| 529 | self.update() |
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| 530 | |
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| 531 | def clear(self): |
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| 532 | """ |
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| 533 | """ |
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| 534 | self.clear_markers() |
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| 535 | try: |
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| 536 | self.inner_marker.remove() |
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| 537 | self.line.remove() |
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| 538 | except: |
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| 539 | # Old version of matplotlib |
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| 540 | for item in range(len(self.axes.lines)): |
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| 541 | del self.axes.lines[0] |
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| 542 | |
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| 543 | def update(self, theta=None): |
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| 544 | """ |
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| 545 | Draw the new roughness on the graph. |
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| 546 | """ |
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| 547 | |
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[7432acb] | 548 | if theta is not None: |
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[959eb01] | 549 | self.theta = theta |
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| 550 | x1 = self.radius * math.cos(self.theta) |
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| 551 | y1 = self.radius * math.sin(self.theta) |
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| 552 | x2 = -1 * self.radius * math.cos(self.theta) |
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| 553 | y2 = -1 * self.radius * math.sin(self.theta) |
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| 554 | |
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| 555 | self.inner_marker.set(xdata=[x1 / 2.5], ydata=[y1 / 2.5]) |
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| 556 | self.line.set(xdata=[x1, x2], ydata=[y1, y2]) |
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| 557 | |
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| 558 | def save(self, ev): |
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| 559 | """ |
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| 560 | Remember the roughness for this layer and the next so that we |
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| 561 | can restore on Esc. |
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| 562 | """ |
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| 563 | self.save_theta = self.theta |
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| 564 | self.base.freeze_axes() |
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| 565 | |
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| 566 | def moveend(self, ev): |
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| 567 | """ |
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| 568 | """ |
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| 569 | self.has_move = False |
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| 570 | self.base.moveend(ev) |
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| 571 | |
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| 572 | def restore(self): |
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| 573 | """ |
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| 574 | Restore the roughness for this layer. |
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| 575 | """ |
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| 576 | self.theta = self.save_theta |
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| 577 | |
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| 578 | def move(self, x, y, ev): |
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| 579 | """ |
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| 580 | Process move to a new position, making sure that the move is allowed. |
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| 581 | """ |
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| 582 | self.theta = math.atan2(y, x) |
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| 583 | self.has_move = True |
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| 584 | self.base.base.update() |
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| 585 | |
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| 586 | def set_cursor(self, x, y): |
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| 587 | """ |
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| 588 | """ |
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| 589 | self.move(x, y, None) |
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| 590 | self.update() |
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| 591 | |
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| 592 | def get_params(self): |
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| 593 | """ |
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| 594 | """ |
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| 595 | params = {} |
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| 596 | params["radius"] = self.radius |
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| 597 | params["theta"] = self.theta |
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| 598 | return params |
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| 599 | |
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| 600 | def set_params(self, params): |
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| 601 | """ |
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| 602 | """ |
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| 603 | x = params["radius"] |
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| 604 | self.set_cursor(x, None) |
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