| 1 | #TODO: the line slicer should listen to all 2DREFRESH events, get the data and slice it |
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| 2 | # before pushing a new 1D data update. |
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| 3 | |
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| 4 | # |
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| 5 | #TODO: NEED MAJOR REFACTOR |
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| 6 | # |
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| 7 | |
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| 8 | import math |
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| 9 | import wx |
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| 10 | from copy import deepcopy |
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| 11 | # Debug printout |
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| 12 | from sans.guicomm.events import NewPlotEvent, StatusEvent,SlicerParameterEvent,EVT_SLICER_PARS |
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| 13 | from BaseInteractor import _BaseInteractor |
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| 14 | |
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| 15 | |
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| 16 | class AnnulusInteractor(_BaseInteractor): |
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| 17 | """ |
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| 18 | Select an annulus through a 2D plot. |
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| 19 | This interactor is used to average 2D data with the region |
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| 20 | defined by 2 radius. |
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| 21 | this class is defined by 2 Ringinterators. |
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| 22 | """ |
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| 23 | def __init__(self,base,axes,color='black', zorder=3): |
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| 24 | |
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| 25 | _BaseInteractor.__init__(self, base, axes, color=color) |
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| 26 | self.markers = [] |
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| 27 | self.axes = axes |
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| 28 | self.base= base |
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| 29 | self.qmax = min(math.fabs(self.base.data2D.xmax),math.fabs(self.base.data2D.xmin)) #must be positive |
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| 30 | self.connect = self.base.connect |
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| 31 | |
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| 32 | ## Number of points on the plot |
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| 33 | self.nbins = 20 |
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| 34 | |
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| 35 | #Cursor position of Rings (Left(-1) or Right(1)) |
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| 36 | self.xmaxd=self.base.data2D.xmax |
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| 37 | self.xmind=self.base.data2D.xmin |
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| 38 | |
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| 39 | if (self.xmaxd+self.xmind)>0: |
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| 40 | self.sign=1 |
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| 41 | else: |
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| 42 | self.sign=-1 |
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| 43 | |
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| 44 | # Inner circle |
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| 45 | self.inner_circle = RingInteractor(self, self.base.subplot, zorder=zorder, r=self.qmax/2.0,sign=self.sign) |
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| 46 | self.inner_circle.qmax = self.qmax |
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| 47 | self.outer_circle = RingInteractor(self, self.base.subplot, zorder=zorder+1, r=self.qmax/1.8,sign=self.sign) |
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| 48 | self.outer_circle.qmax = self.qmax*1.2 |
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| 49 | |
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| 50 | self.update() |
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| 51 | self._post_data() |
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| 52 | |
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| 53 | # Bind to slice parameter events |
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| 54 | self.base.Bind(EVT_SLICER_PARS, self._onEVT_SLICER_PARS) |
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| 55 | |
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| 56 | |
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| 57 | |
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| 58 | def _onEVT_SLICER_PARS(self, event): |
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| 59 | """ |
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| 60 | receive an event containing parameters values to reset the slicer |
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| 61 | @param event: event of type SlicerParameterEvent with params as |
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| 62 | attribute |
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| 63 | """ |
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| 64 | wx.PostEvent(self.base, StatusEvent(status="AnnulusSlicer._onEVT_SLICER_PARS")) |
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| 65 | event.Skip() |
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| 66 | if event.type == self.__class__.__name__: |
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| 67 | self.set_params(event.params) |
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| 68 | self.base.update() |
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| 69 | |
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| 70 | def set_layer(self, n): |
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| 71 | """ |
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| 72 | Allow adding plot to the same panel |
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| 73 | @param n: the number of layer |
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| 74 | """ |
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| 75 | self.layernum = n |
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| 76 | self.update() |
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| 77 | |
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| 78 | def clear(self): |
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| 79 | """ |
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| 80 | Clear the slicer and all connected events related to this slicer |
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| 81 | """ |
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| 82 | self.clear_markers() |
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| 83 | self.outer_circle.clear() |
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| 84 | self.inner_circle.clear() |
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| 85 | self.base.connect.clearall() |
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| 86 | self.base.Unbind(EVT_SLICER_PARS) |
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| 87 | |
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| 88 | |
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| 89 | def update(self): |
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| 90 | """ |
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| 91 | Respond to changes in the model by recalculating the profiles and |
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| 92 | resetting the widgets. |
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| 93 | """ |
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| 94 | # Update locations |
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| 95 | self.inner_circle.update() |
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| 96 | self.outer_circle.update() |
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| 97 | |
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| 98 | |
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| 99 | def save(self, ev): |
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| 100 | """ |
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| 101 | Remember the roughness for this layer and the next so that we |
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| 102 | can restore on Esc. |
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| 103 | """ |
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| 104 | self.base.freeze_axes() |
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| 105 | self.inner_circle.save(ev) |
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| 106 | self.outer_circle.save(ev) |
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| 107 | |
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| 108 | def _post_data(self,nbins=None): |
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| 109 | """ |
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| 110 | Uses annulus parameters to plot averaged data into 1D data. |
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| 111 | @param nbins: the number of points to plot |
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| 112 | """ |
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| 113 | #Data to average |
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| 114 | data = self.base.data2D |
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| 115 | # If we have no data, just return |
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| 116 | if data == None: |
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| 117 | return |
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| 118 | |
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| 119 | from DataLoader.manipulations import SectorPhi |
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| 120 | |
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| 121 | rmin= min(math.fabs(self.inner_circle.get_radius()), |
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| 122 | math.fabs(self.outer_circle.get_radius())) |
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| 123 | rmax = max(math.fabs(self.inner_circle.get_radius()), |
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| 124 | math.fabs(self.outer_circle.get_radius())) |
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| 125 | #if the user does not specify the numbers of points to plot |
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| 126 | # the default number will be nbins= 20 |
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| 127 | if nbins==None: |
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| 128 | self.nbins= 20 |
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| 129 | else: |
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| 130 | self.nbins = nbins |
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| 131 | ## create the data1D Q average of data2D |
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| 132 | sect = SectorPhi(r_min=rmin , r_max= rmax, |
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| 133 | phi_min=0, phi_max=2*math.pi , nbins=self.nbins) |
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| 134 | sector = sect(self.base.data2D) |
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| 135 | |
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| 136 | from sans.guiframe.dataFitting import Data1D |
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| 137 | if hasattr(sector,"dxl"): |
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| 138 | dxl= sector.dxl |
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| 139 | else: |
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| 140 | dxl= None |
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| 141 | if hasattr(sector,"dxw"): |
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| 142 | dxw= sector.dxw |
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| 143 | else: |
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| 144 | dxw= None |
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| 145 | |
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| 146 | new_plot = Data1D(x=sector.x,y=sector.y,dy=sector.dy,dxl=dxl,dxw=dxw) |
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| 147 | new_plot.name = "SectorPhi" +"("+ self.base.data2D.name+")" |
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| 148 | |
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| 149 | new_plot.source=self.base.data2D.source |
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| 150 | #new_plot.info=self.base.data2D.info |
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| 151 | |
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| 152 | new_plot.interactive = True |
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| 153 | new_plot.detector =self.base.data2D.detector |
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| 154 | # If the data file does not tell us what the axes are, just assume... |
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| 155 | new_plot.xaxis("\\rm{\phi}", 'degrees') |
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| 156 | new_plot.yaxis("\\rm{Intensity} ","cm^{-1}") |
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| 157 | new_plot.group_id = "SectorPhi"+self.base.data2D.name |
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| 158 | new_plot.id= "SectorPhi"+self.base.data2D.name |
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| 159 | new_plot.xtransform="x" |
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| 160 | new_plot.ytransform="y" |
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| 161 | wx.PostEvent(self.base.parent, NewPlotEvent(plot=new_plot, |
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| 162 | title="SectorPhi" )) |
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| 163 | |
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| 164 | |
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| 165 | def moveend(self, ev): |
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| 166 | """ |
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| 167 | Called when any dragging motion ends. |
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| 168 | Post an event (type =SlicerParameterEvent) |
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| 169 | to plotter 2D with a copy slicer parameters |
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| 170 | Call _post_data method |
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| 171 | """ |
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| 172 | self.base.thaw_axes() |
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| 173 | # Post parameters to plotter 2D |
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| 174 | event = SlicerParameterEvent() |
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| 175 | event.type = self.__class__.__name__ |
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| 176 | event.params = self.get_params() |
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| 177 | wx.PostEvent(self.base, event) |
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| 178 | # create a 1D data plot |
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| 179 | self._post_data() |
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| 180 | |
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| 181 | def restore(self): |
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| 182 | """ |
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| 183 | Restore the roughness for this layer. |
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| 184 | """ |
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| 185 | self.inner_circle.restore() |
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| 186 | self.outer_circle.restore() |
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| 187 | |
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| 188 | def move(self, x, y, ev): |
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| 189 | """ |
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| 190 | Process move to a new position, making sure that the move is allowed. |
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| 191 | """ |
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| 192 | pass |
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| 193 | |
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| 194 | def set_cursor(self, x, y): |
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| 195 | pass |
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| 196 | |
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| 197 | def get_params(self): |
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| 198 | """ |
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| 199 | Store a copy of values of parameters of the slicer into a dictionary. |
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| 200 | @return params: the dictionary created |
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| 201 | """ |
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| 202 | params = {} |
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| 203 | params["inner_radius"] = math.fabs(self.inner_circle._inner_mouse_x) |
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| 204 | params["outer_radius"] = math.fabs(self.outer_circle._inner_mouse_x) |
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| 205 | params["nbins"] = self.nbins |
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| 206 | return params |
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| 207 | |
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| 208 | def set_params(self, params): |
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| 209 | """ |
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| 210 | Receive a dictionary and reset the slicer with values contained |
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| 211 | in the values of the dictionary. |
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| 212 | @param params: a dictionary containing name of slicer parameters and |
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| 213 | values the user assigned to the slicer. |
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| 214 | """ |
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| 215 | inner = math.fabs(params["inner_radius"] ) |
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| 216 | outer = math.fabs(params["outer_radius"] ) |
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| 217 | self.nbins = int(params["nbins"]) |
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| 218 | ## Update the picture |
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| 219 | self.inner_circle.set_cursor(inner, self.inner_circle._inner_mouse_y) |
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| 220 | self.outer_circle.set_cursor(outer, self.outer_circle._inner_mouse_y) |
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| 221 | ## Post the data given the nbins entered by the user |
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| 222 | self._post_data(self.nbins) |
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| 223 | |
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| 224 | def freeze_axes(self): |
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| 225 | self.base.freeze_axes() |
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| 226 | |
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| 227 | def thaw_axes(self): |
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| 228 | self.base.thaw_axes() |
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| 229 | |
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| 230 | def draw(self): |
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| 231 | self.base.draw() |
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| 232 | |
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| 233 | |
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| 234 | class RingInteractor(_BaseInteractor): |
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| 235 | """ |
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| 236 | Draw a ring Given a radius |
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| 237 | @param: the color of the line that defined the ring |
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| 238 | @param r: the radius of the ring |
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| 239 | @param sign: the direction of motion the the marker |
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| 240 | """ |
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| 241 | def __init__(self,base,axes,color='black', zorder=5, r=1.0,sign=1): |
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| 242 | |
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| 243 | _BaseInteractor.__init__(self, base, axes, color=color) |
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| 244 | self.markers = [] |
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| 245 | self.axes = axes |
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| 246 | # Current radius of the ring |
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| 247 | self._inner_mouse_x = r |
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| 248 | #Value of the center of the ring |
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| 249 | self._inner_mouse_y = 0 |
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| 250 | # previous value of that radius |
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| 251 | self._inner_save_x = r |
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| 252 | #Save value of the center of the ring |
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| 253 | self._inner_save_y = 0 |
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| 254 | #Class instantiating RingIterator class |
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| 255 | self.base= base |
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| 256 | #the direction of the motion of the marker |
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| 257 | self.sign=sign |
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| 258 | ## Create a marker |
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| 259 | try: |
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| 260 | # Inner circle marker |
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| 261 | self.inner_marker = self.axes.plot([self.sign*math.fabs(self._inner_mouse_x)],[0], linestyle='', |
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| 262 | marker='s', markersize=10, |
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| 263 | color=self.color, alpha=0.6, |
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| 264 | pickradius=5, label="pick", |
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| 265 | zorder=zorder, # Prefer this to other lines |
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| 266 | visible=True)[0] |
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| 267 | except: |
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| 268 | self.inner_marker = self.axes.plot([self.sign*math.fabs(self._inner_mouse_x)],[0], linestyle='', |
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| 269 | marker='s', markersize=10, |
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| 270 | color=self.color, alpha=0.6, |
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| 271 | label="pick", |
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| 272 | visible=True)[0] |
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| 273 | message = "\nTHIS PROTOTYPE NEEDS THE LATEST VERSION OF MATPLOTLIB\n" |
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| 274 | message += "Get the SVN version that is at least as recent as June 1, 2007" |
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| 275 | |
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| 276 | owner=self.base.base.parent |
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| 277 | wx.PostEvent(owner, StatusEvent(status="AnnulusSlicer: %s"%message)) |
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| 278 | |
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| 279 | # Draw a circle |
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| 280 | [self.inner_circle] = self.axes.plot([],[], |
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| 281 | linestyle='-', marker='', |
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| 282 | color=self.color) |
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| 283 | # the number of points that make the ring line |
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| 284 | self.npts = 40 |
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| 285 | |
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| 286 | self.connect_markers([self.inner_marker]) |
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| 287 | self.update() |
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| 288 | |
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| 289 | def set_layer(self, n): |
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| 290 | """ |
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| 291 | Allow adding plot to the same panel |
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| 292 | @param n: the number of layer |
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| 293 | """ |
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| 294 | self.layernum = n |
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| 295 | self.update() |
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| 296 | |
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| 297 | def clear(self): |
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| 298 | """ |
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| 299 | Clear the slicer and all connected events related to this slicer |
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| 300 | """ |
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| 301 | self.clear_markers() |
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| 302 | try: |
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| 303 | self.inner_marker.remove() |
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| 304 | self.inner_circle.remove() |
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| 305 | except: |
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| 306 | # Old version of matplotlib |
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| 307 | for item in range(len(self.axes.lines)): |
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| 308 | del self.axes.lines[0] |
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| 309 | |
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| 310 | |
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| 311 | |
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| 312 | def get_radius(self): |
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| 313 | """ |
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| 314 | @return self._inner_mouse_x: the current radius of the ring |
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| 315 | """ |
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| 316 | return self._inner_mouse_x |
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| 317 | |
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| 318 | def update(self): |
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| 319 | """ |
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| 320 | Draw the new roughness on the graph. |
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| 321 | """ |
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| 322 | # Plot inner circle |
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| 323 | x = [] |
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| 324 | y = [] |
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| 325 | for i in range(self.npts): |
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| 326 | phi = 2.0*math.pi/(self.npts-1)*i |
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| 327 | |
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| 328 | xval = 1.0*self._inner_mouse_x*math.cos(phi) |
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| 329 | yval = 1.0*self._inner_mouse_x*math.sin(phi) |
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| 330 | |
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| 331 | x.append(xval) |
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| 332 | y.append(yval) |
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| 333 | |
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| 334 | self.inner_marker.set(xdata=[self.sign*math.fabs(self._inner_mouse_x)],ydata=[0]) |
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| 335 | self.inner_circle.set_data(x, y) |
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| 336 | |
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| 337 | def save(self, ev): |
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| 338 | """ |
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| 339 | Remember the roughness for this layer and the next so that we |
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| 340 | can restore on Esc. |
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| 341 | """ |
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| 342 | self._inner_save_x = self._inner_mouse_x |
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| 343 | self._inner_save_y = self._inner_mouse_y |
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| 344 | self.base.freeze_axes() |
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| 345 | |
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| 346 | def moveend(self, ev): |
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| 347 | """ |
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| 348 | Called after a dragging motion |
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| 349 | """ |
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| 350 | self.base.moveend(ev) |
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| 351 | |
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| 352 | def restore(self): |
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| 353 | """ |
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| 354 | Restore the roughness for this layer. |
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| 355 | """ |
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| 356 | self._inner_mouse_x = self._inner_save_x |
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| 357 | self._inner_mouse_y = self._inner_save_y |
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| 358 | |
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| 359 | def move(self, x, y, ev): |
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| 360 | """ |
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| 361 | Process move to a new position, making sure that the move is allowed. |
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| 362 | """ |
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| 363 | self._inner_mouse_x = x |
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| 364 | self._inner_mouse_y = y |
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| 365 | self.base.base.update() |
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| 366 | |
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| 367 | def set_cursor(self, x, y): |
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| 368 | """ |
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| 369 | draw the ring given x, y value |
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| 370 | """ |
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| 371 | self.move(x, y, None) |
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| 372 | self.update() |
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| 373 | |
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| 374 | |
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| 375 | def get_params(self): |
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| 376 | """ |
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| 377 | Store a copy of values of parameters of the slicer into a dictionary. |
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| 378 | @return params: the dictionary created |
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| 379 | """ |
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| 380 | params = {} |
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| 381 | params["radius"] = math.fabs(self._inner_mouse_x) |
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| 382 | return params |
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| 383 | |
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| 384 | def set_params(self, params): |
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| 385 | """ |
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| 386 | Receive a dictionary and reset the slicer with values contained |
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| 387 | in the values of the dictionary. |
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| 388 | @param params: a dictionary containing name of slicer parameters and |
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| 389 | values the user assigned to the slicer. |
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| 390 | """ |
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| 391 | x = params["radius"] |
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| 392 | self.set_cursor(x, self._inner_mouse_y) |
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| 393 | |
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| 394 | |
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