| 1 | import numpy |
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| 2 | |
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| 3 | import sas.qtgui.Utilities.GuiUtils as GuiUtils |
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| 4 | from .BaseInteractor import BaseInteractor |
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| 5 | from sas.qtgui.Plotting.PlotterData import Data1D |
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| 6 | from sas.qtgui.Utilities.GuiUtils import formatNumber |
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| 7 | from sas.qtgui.Plotting.SlicerModel import SlicerModel |
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| 8 | |
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| 9 | class AnnulusInteractor(BaseInteractor, SlicerModel): |
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| 10 | """ |
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| 11 | Select an annulus through a 2D plot. |
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| 12 | This interactor is used to average 2D data with the region |
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| 13 | defined by 2 radius. |
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| 14 | this class is defined by 2 Ringinterators. |
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| 15 | """ |
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| 16 | def __init__(self, base, axes, item=None, color='black', zorder=3): |
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| 17 | |
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| 18 | BaseInteractor.__init__(self, base, axes, color=color) |
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| 19 | SlicerModel.__init__(self) |
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| 20 | |
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| 21 | self.markers = [] |
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| 22 | self.axes = axes |
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| 23 | self.base = base |
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| 24 | self._item = item |
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| 25 | self.qmax = min(numpy.fabs(self.base.data.xmax), |
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| 26 | numpy.fabs(self.base.data.xmin)) # must be positive |
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| 27 | self.connect = self.base.connect |
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| 28 | |
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| 29 | # Number of points on the plot |
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| 30 | self.nbins = 36 |
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| 31 | # Cursor position of Rings (Left(-1) or Right(1)) |
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| 32 | self.xmaxd = self.base.data.xmax |
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| 33 | self.xmind = self.base.data.xmin |
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| 34 | |
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| 35 | if (self.xmaxd + self.xmind) > 0: |
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| 36 | self.sign = 1 |
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| 37 | else: |
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| 38 | self.sign = -1 |
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| 39 | # Inner circle |
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| 40 | self.inner_circle = RingInteractor(self, self.axes, |
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| 41 | zorder=zorder, |
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| 42 | r=self.qmax / 2.0, sign=self.sign) |
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| 43 | self.inner_circle.qmax = self.qmax |
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| 44 | self.outer_circle = RingInteractor(self, self.axes, |
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| 45 | zorder=zorder + 1, r=self.qmax / 1.8, |
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| 46 | sign=self.sign) |
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| 47 | self.outer_circle.qmax = self.qmax * 1.2 |
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| 48 | self.update() |
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| 49 | self._post_data() |
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| 50 | |
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| 51 | self.setModelFromParams() |
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| 52 | |
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| 53 | def set_layer(self, n): |
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| 54 | """ |
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| 55 | Allow adding plot to the same panel |
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| 56 | :param n: the number of layer |
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| 57 | """ |
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| 58 | self.layernum = n |
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| 59 | self.update() |
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| 60 | |
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| 61 | def clear(self): |
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| 62 | """ |
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| 63 | Clear the slicer and all connected events related to this slicer |
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| 64 | """ |
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| 65 | self.clear_markers() |
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| 66 | self.outer_circle.clear() |
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| 67 | self.inner_circle.clear() |
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| 68 | self.base.connect.clearall() |
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| 69 | |
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| 70 | def update(self): |
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| 71 | """ |
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| 72 | Respond to changes in the model by recalculating the profiles and |
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| 73 | resetting the widgets. |
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| 74 | """ |
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| 75 | # Update locations |
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| 76 | self.inner_circle.update() |
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| 77 | self.outer_circle.update() |
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| 78 | |
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| 79 | def save(self, ev): |
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| 80 | """ |
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| 81 | Remember the roughness for this layer and the next so that we |
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| 82 | can restore on Esc. |
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| 83 | """ |
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| 84 | self.inner_circle.save(ev) |
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| 85 | self.outer_circle.save(ev) |
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| 86 | |
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| 87 | def _post_data(self, nbins=None): |
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| 88 | """ |
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| 89 | Uses annulus parameters to plot averaged data into 1D data. |
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| 90 | |
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| 91 | :param nbins: the number of points to plot |
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| 92 | |
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| 93 | """ |
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| 94 | # Data to average |
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| 95 | data = self.base.data |
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| 96 | if data is None: |
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| 97 | return |
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| 98 | |
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| 99 | from sas.sascalc.dataloader.manipulations import Ring |
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| 100 | rmin = min(numpy.fabs(self.inner_circle.get_radius()), |
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| 101 | numpy.fabs(self.outer_circle.get_radius())) |
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| 102 | rmax = max(numpy.fabs(self.inner_circle.get_radius()), |
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| 103 | numpy.fabs(self.outer_circle.get_radius())) |
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| 104 | # If the user does not specify the numbers of points to plot |
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| 105 | # the default number will be nbins= 36 |
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| 106 | if nbins is None: |
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| 107 | self.nbins = 36 |
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| 108 | else: |
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| 109 | self.nbins = nbins |
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| 110 | # Create the data1D Q average of data2D |
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| 111 | sect = Ring(r_min=rmin, r_max=rmax, nbins=self.nbins) |
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| 112 | sector = sect(self.base.data) |
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| 113 | |
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| 114 | if hasattr(sector, "dxl"): |
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| 115 | dxl = sector.dxl |
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| 116 | else: |
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| 117 | dxl = None |
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| 118 | if hasattr(sector, "dxw"): |
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| 119 | dxw = sector.dxw |
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| 120 | else: |
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| 121 | dxw = None |
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| 122 | new_plot = Data1D(x=(sector.x - numpy.pi) * 180 / numpy.pi, |
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| 123 | y=sector.y, dy=sector.dy) |
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| 124 | new_plot.dxl = dxl |
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| 125 | new_plot.dxw = dxw |
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| 126 | new_plot.name = "AnnulusPhi" + "(" + self.base.data.name + ")" |
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| 127 | new_plot.title = "AnnulusPhi" + "(" + self.base.data.name + ")" |
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| 128 | |
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| 129 | new_plot.source = self.base.data.source |
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| 130 | new_plot.interactive = True |
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| 131 | new_plot.detector = self.base.data.detector |
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| 132 | # If the data file does not tell us what the axes are, just assume... |
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| 133 | new_plot.xaxis("\\rm{\phi}", 'degrees') |
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| 134 | new_plot.yaxis("\\rm{Intensity} ", "cm^{-1}") |
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| 135 | if hasattr(data, "scale") and data.scale == 'linear' and \ |
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| 136 | self.base.data.name.count("Residuals") > 0: |
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| 137 | new_plot.ytransform = 'y' |
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| 138 | new_plot.yaxis("\\rm{Residuals} ", "/") |
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| 139 | |
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| 140 | new_plot.group_id = "AnnulusPhi" + self.base.data.name |
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| 141 | new_plot.id = "AnnulusPhi" + self.base.data.name |
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| 142 | new_plot.is_data = True |
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| 143 | new_plot.xtransform = "x" |
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| 144 | new_plot.ytransform = "y" |
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| 145 | item = self._item |
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| 146 | if self._item.parent() is not None: |
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| 147 | item = self._item.parent() |
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| 148 | GuiUtils.updateModelItemWithPlot(item, new_plot, new_plot.id) |
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| 149 | self.base.manager.communicator.plotUpdateSignal.emit([new_plot]) |
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| 150 | |
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| 151 | if self.update_model: |
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| 152 | self.setModelFromParams() |
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| 153 | self.draw() |
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| 154 | |
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| 155 | def validate(self, param_name, param_value): |
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| 156 | """ |
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| 157 | Test the proposed new value "value" for row "row" of parameters |
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| 158 | """ |
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| 159 | MIN_DIFFERENCE = 0.01 |
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| 160 | isValid = True |
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| 161 | |
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| 162 | if param_name == 'inner_radius': |
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| 163 | # First, check the closeness |
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| 164 | if numpy.fabs(param_value - self.getParams()['outer_radius']) < MIN_DIFFERENCE: |
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| 165 | print("Inner and outer radii too close. Please adjust.") |
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| 166 | isValid = False |
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| 167 | elif param_value > self.qmax: |
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| 168 | print("Inner radius exceeds maximum range. Please adjust.") |
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| 169 | isValid = False |
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| 170 | elif param_name == 'outer_radius': |
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| 171 | # First, check the closeness |
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| 172 | if numpy.fabs(param_value - self.getParams()['inner_radius']) < MIN_DIFFERENCE: |
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| 173 | print("Inner and outer radii too close. Please adjust.") |
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| 174 | isValid = False |
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| 175 | elif param_value > self.qmax: |
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| 176 | print("Outer radius exceeds maximum range. Please adjust.") |
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| 177 | isValid = False |
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| 178 | elif param_name == 'nbins': |
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| 179 | # Can't be 0 |
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| 180 | if param_value < 1: |
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| 181 | print("Number of bins cannot be less than or equal to 0. Please adjust.") |
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| 182 | isValid = False |
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| 183 | |
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| 184 | return isValid |
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| 185 | |
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| 186 | def moveend(self, ev): |
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| 187 | """ |
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| 188 | Called when any dragging motion ends. |
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| 189 | Redraw the plot with new parameters. |
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| 190 | """ |
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| 191 | self._post_data(self.nbins) |
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| 192 | |
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| 193 | def restore(self): |
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| 194 | """ |
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| 195 | Restore the roughness for this layer. |
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| 196 | """ |
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| 197 | self.inner_circle.restore() |
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| 198 | self.outer_circle.restore() |
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| 199 | |
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| 200 | def move(self, x, y, ev): |
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| 201 | """ |
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| 202 | Process move to a new position, making sure that the move is allowed. |
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| 203 | """ |
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| 204 | pass |
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| 205 | |
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| 206 | def set_cursor(self, x, y): |
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| 207 | pass |
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| 208 | |
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| 209 | def getParams(self): |
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| 210 | """ |
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| 211 | Store a copy of values of parameters of the slicer into a dictionary. |
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| 212 | :return params: the dictionary created |
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| 213 | """ |
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| 214 | params = {} |
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| 215 | params["inner_radius"] = numpy.fabs(self.inner_circle._inner_mouse_x) |
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| 216 | params["outer_radius"] = numpy.fabs(self.outer_circle._inner_mouse_x) |
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| 217 | params["nbins"] = self.nbins |
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| 218 | return params |
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| 219 | |
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| 220 | def setParams(self, params): |
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| 221 | """ |
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| 222 | Receive a dictionary and reset the slicer with values contained |
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| 223 | in the values of the dictionary. |
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| 224 | |
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| 225 | :param params: a dictionary containing name of slicer parameters and |
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| 226 | values the user assigned to the slicer. |
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| 227 | """ |
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| 228 | inner = numpy.fabs(params["inner_radius"]) |
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| 229 | outer = numpy.fabs(params["outer_radius"]) |
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| 230 | self.nbins = int(params["nbins"]) |
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| 231 | # Update the picture |
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| 232 | self.inner_circle.set_cursor(inner, self.inner_circle._inner_mouse_y) |
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| 233 | self.outer_circle.set_cursor(outer, self.outer_circle._inner_mouse_y) |
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| 234 | # Post the data given the nbins entered by the user |
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| 235 | self._post_data(self.nbins) |
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| 236 | |
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| 237 | def draw(self): |
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| 238 | """ |
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| 239 | """ |
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| 240 | self.base.draw() |
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| 241 | |
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| 242 | |
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| 243 | class RingInteractor(BaseInteractor): |
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| 244 | """ |
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| 245 | Draw a ring Given a radius |
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| 246 | """ |
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| 247 | def __init__(self, base, axes, color='black', zorder=5, r=1.0, sign=1): |
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| 248 | """ |
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| 249 | :param: the color of the line that defined the ring |
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| 250 | :param r: the radius of the ring |
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| 251 | :param sign: the direction of motion the the marker |
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| 252 | |
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| 253 | """ |
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| 254 | BaseInteractor.__init__(self, base, axes, color=color) |
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| 255 | self.markers = [] |
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| 256 | self.axes = axes |
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| 257 | # Current radius of the ring |
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| 258 | self._inner_mouse_x = r |
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| 259 | # Value of the center of the ring |
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| 260 | self._inner_mouse_y = 0 |
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| 261 | # previous value of that radius |
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| 262 | self._inner_save_x = r |
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| 263 | # Save value of the center of the ring |
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| 264 | self._inner_save_y = 0 |
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| 265 | # Class instantiating RingIterator class |
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| 266 | self.base = base |
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| 267 | # the direction of the motion of the marker |
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| 268 | self.sign = sign |
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| 269 | # # Create a marker |
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| 270 | # Inner circle marker |
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| 271 | x_value = [self.sign * numpy.fabs(self._inner_mouse_x)] |
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| 272 | self.inner_marker = self.axes.plot(x_value, [0], linestyle='', |
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| 273 | marker='s', markersize=10, |
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| 274 | color=self.color, alpha=0.6, |
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| 275 | pickradius=5, label="pick", |
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| 276 | zorder=zorder, |
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| 277 | visible=True)[0] |
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| 278 | # Draw a circle |
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| 279 | [self.inner_circle] = self.axes.plot([], [], linestyle='-', marker='', color=self.color) |
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| 280 | # The number of points that make the ring line |
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| 281 | self.npts = 40 |
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| 282 | |
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| 283 | self.connect_markers([self.inner_marker]) |
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| 284 | self.update() |
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| 285 | |
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| 286 | def set_layer(self, n): |
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| 287 | """ |
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| 288 | Allow adding plot to the same panel |
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| 289 | |
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| 290 | :param n: the number of layer |
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| 291 | |
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| 292 | """ |
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| 293 | self.layernum = n |
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| 294 | self.update() |
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| 295 | |
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| 296 | def clear(self): |
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| 297 | """ |
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| 298 | Clear the slicer and all connected events related to this slicer |
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| 299 | """ |
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| 300 | self.clear_markers() |
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| 301 | self.inner_marker.remove() |
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| 302 | self.inner_circle.remove() |
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| 303 | |
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| 304 | def get_radius(self): |
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| 305 | """ |
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| 306 | :return self._inner_mouse_x: the current radius of the ring |
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| 307 | """ |
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| 308 | return self._inner_mouse_x |
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| 309 | |
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| 310 | def update(self): |
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| 311 | """ |
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| 312 | Draw the new roughness on the graph. |
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| 313 | """ |
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| 314 | # Plot inner circle |
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| 315 | x = [] |
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| 316 | y = [] |
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| 317 | for i in range(self.npts): |
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| 318 | phi = 2.0 * numpy.pi / (self.npts - 1) * i |
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| 319 | |
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| 320 | xval = 1.0 * self._inner_mouse_x * numpy.cos(phi) |
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| 321 | yval = 1.0 * self._inner_mouse_x * numpy.sin(phi) |
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| 322 | |
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| 323 | x.append(xval) |
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| 324 | y.append(yval) |
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| 325 | |
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| 326 | self.inner_marker.set(xdata=[self.sign * numpy.fabs(self._inner_mouse_x)], |
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| 327 | ydata=[0]) |
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| 328 | self.inner_circle.set_data(x, y) |
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| 329 | |
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| 330 | def save(self, ev): |
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| 331 | """ |
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| 332 | Remember the roughness for this layer and the next so that we |
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| 333 | can restore on Esc. |
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| 334 | """ |
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| 335 | self._inner_save_x = self._inner_mouse_x |
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| 336 | self._inner_save_y = self._inner_mouse_y |
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| 337 | |
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| 338 | def moveend(self, ev): |
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| 339 | """ |
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| 340 | Called after a dragging motion |
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| 341 | """ |
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| 342 | self.base.moveend(ev) |
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| 343 | |
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| 344 | def restore(self): |
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| 345 | """ |
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| 346 | Restore the roughness for this layer. |
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| 347 | """ |
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| 348 | self._inner_mouse_x = self._inner_save_x |
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| 349 | self._inner_mouse_y = self._inner_save_y |
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| 350 | |
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| 351 | def move(self, x, y, ev): |
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| 352 | """ |
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| 353 | Process move to a new position, making sure that the move is allowed. |
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| 354 | """ |
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| 355 | self._inner_mouse_x = x |
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| 356 | self._inner_mouse_y = y |
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| 357 | self.base.base.update() |
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| 358 | |
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| 359 | def set_cursor(self, x, y): |
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| 360 | """ |
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| 361 | draw the ring given x, y value |
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| 362 | """ |
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| 363 | self.move(x, y, None) |
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| 364 | self.update() |
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| 365 | |
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| 366 | def getParams(self): |
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| 367 | """ |
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| 368 | Store a copy of values of parameters of the slicer into a dictionary. |
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| 369 | :return params: the dictionary created |
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| 370 | """ |
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| 371 | params = {} |
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| 372 | params["radius"] = numpy.fabs(self._inner_mouse_x) |
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| 373 | return params |
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| 374 | |
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| 375 | def setParams(self, params): |
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| 376 | """ |
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| 377 | Receive a dictionary and reset the slicer with values contained |
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| 378 | in the values of the dictionary. |
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| 379 | |
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| 380 | :param params: a dictionary containing name of slicer parameters and |
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| 381 | values the user assigned to the slicer. |
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| 382 | |
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| 383 | """ |
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| 384 | x = params["radius"] |
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| 385 | self.set_cursor(x, self._inner_mouse_y) |
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| 386 | |
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| 387 | |
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