| 1 | import numpy |
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| 2 | |
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| 3 | from sas.qtgui.Plotting.Slicers.BaseInteractor import BaseInteractor |
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| 4 | from sas.qtgui.Plotting.Slicers.AnnulusSlicer import RingInteractor |
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| 5 | |
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| 6 | class CircularMask(BaseInteractor): |
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| 7 | """ |
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| 8 | Draw a ring Given a radius |
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| 9 | """ |
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| 10 | def __init__(self, base, axes, color='grey', zorder=3, side=None): |
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| 11 | """ |
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| 12 | :param: the color of the line that defined the ring |
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| 13 | :param r: the radius of the ring |
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| 14 | :param sign: the direction of motion the the marker |
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| 15 | """ |
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| 16 | BaseInteractor.__init__(self, base, axes, color=color) |
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| 17 | self.markers = [] |
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| 18 | self.axes = axes |
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| 19 | self.base = base |
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| 20 | self.is_inside = side |
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| 21 | self.qmax = min(numpy.fabs(self.base.data.xmax), |
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| 22 | numpy.fabs(self.base.data.xmin)) # must be positive |
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| 23 | self.connect = self.base.connect |
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| 24 | |
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| 25 | # Cursor position of Rings (Left(-1) or Right(1)) |
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| 26 | self.xmaxd = self.base.data.xmax |
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| 27 | self.xmind = self.base.data.xmin |
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| 28 | |
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| 29 | if (self.xmaxd + self.xmind) > 0: |
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| 30 | self.sign = 1 |
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| 31 | else: |
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| 32 | self.sign = -1 |
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| 33 | # Inner circle |
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| 34 | self.outer_circle = RingInteractor(self, self.axes, 'blue', |
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| 35 | zorder=zorder + 1, r=self.qmax / 1.8, |
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| 36 | sign=self.sign) |
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| 37 | self.outer_circle.qmax = self.qmax * 1.2 |
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| 38 | self.update() |
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| 39 | self._post_data() |
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| 40 | |
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| 41 | def set_layer(self, n): |
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| 42 | """ |
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| 43 | Allow adding plot to the same panel |
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| 44 | :param n: the number of layer |
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| 45 | """ |
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| 46 | self.layernum = n |
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| 47 | self.update() |
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| 48 | |
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| 49 | def clear(self): |
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| 50 | """ |
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| 51 | Clear the slicer and all connected events related to this slicer |
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| 52 | """ |
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| 53 | self.clear_markers() |
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| 54 | self.outer_circle.clear() |
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| 55 | |
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| 56 | self.base.connect.clearall() |
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| 57 | |
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| 58 | def update(self): |
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| 59 | """ |
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| 60 | Respond to changes in the model by recalculating the profiles and |
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| 61 | resetting the widgets. |
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| 62 | """ |
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| 63 | # Update locations |
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| 64 | self.outer_circle.update() |
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| 65 | self._post_data() |
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| 66 | out = self._post_data() |
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| 67 | return out |
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| 68 | |
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| 69 | def save(self, ev): |
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| 70 | """ |
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| 71 | Remember the roughness for this layer and the next so that we |
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| 72 | can restore on Esc. |
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| 73 | """ |
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| 74 | self.outer_circle.save(ev) |
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| 75 | |
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| 76 | def _post_data(self): |
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| 77 | """ |
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| 78 | Uses annulus parameters to plot averaged data into 1D data. |
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| 79 | |
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| 80 | :param nbins: the number of points to plot |
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| 81 | |
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| 82 | """ |
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| 83 | # Data to average |
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| 84 | data = self.base.data |
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| 85 | |
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| 86 | # If we have no data, just return |
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| 87 | if data is None: |
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| 88 | return |
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| 89 | mask = data.mask |
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| 90 | from sas.sascalc.dataloader.manipulations import Ringcut |
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| 91 | |
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| 92 | rmin = 0 |
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| 93 | rmax = numpy.fabs(self.outer_circle.get_radius()) |
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| 94 | |
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| 95 | # Create the data1D Q average of data2D |
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| 96 | mask = Ringcut(r_min=rmin, r_max=rmax) |
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| 97 | |
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| 98 | if self.is_inside: |
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| 99 | out = (mask(data) == False) |
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| 100 | else: |
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| 101 | out = (mask(data)) |
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| 102 | return out |
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| 103 | |
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| 104 | |
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| 105 | def moveend(self, ev): |
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| 106 | """ |
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| 107 | Called when any dragging motion ends. |
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| 108 | Post an event (type =SlicerParameterEvent) |
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| 109 | to plotter 2D with a copy slicer parameters |
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| 110 | Call _post_data method |
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| 111 | """ |
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| 112 | #self.base.thaw_axes() |
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| 113 | # create a 1D data plot |
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| 114 | self._post_data() |
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| 115 | |
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| 116 | def restore(self): |
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| 117 | """ |
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| 118 | Restore the roughness for this layer. |
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| 119 | """ |
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| 120 | self.outer_circle.restore() |
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| 121 | |
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| 122 | def move(self, x, y, ev): |
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| 123 | """ |
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| 124 | Process move to a new position, making sure that the move is allowed. |
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| 125 | """ |
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| 126 | pass |
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| 127 | |
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| 128 | def set_cursor(self, x, y): |
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| 129 | pass |
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| 130 | |
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| 131 | def getParams(self): |
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| 132 | """ |
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| 133 | Store a copy of values of parameters of the slicer into a dictionary. |
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| 134 | |
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| 135 | :return params: the dictionary created |
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| 136 | |
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| 137 | """ |
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| 138 | params = {} |
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| 139 | params["outer_radius"] = numpy.fabs(self.outer_circle._inner_mouse_x) |
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| 140 | return params |
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| 141 | |
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| 142 | def setParams(self, params): |
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| 143 | """ |
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| 144 | Receive a dictionary and reset the slicer with values contained |
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| 145 | in the values of the dictionary. |
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| 146 | |
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| 147 | :param params: a dictionary containing name of slicer parameters and |
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| 148 | values the user assigned to the slicer. |
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| 149 | """ |
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| 150 | outer = numpy.fabs(params["outer_radius"]) |
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| 151 | # Update the picture |
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| 152 | self.outer_circle.set_cursor(outer, self.outer_circle._inner_mouse_y) |
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| 153 | # Post the data given the nbins entered by the user |
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| 154 | self._post_data() |
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| 155 | |
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| 156 | def draw(self): |
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| 157 | self.base.update() |
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| 158 | |
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