Source code for sas.sasgui.guiframe.local_perspectives.plotting.boxSlicer

import wx
import math
import numpy as np
from sas.sasgui.guiframe.events import NewPlotEvent
from sas.sasgui.guiframe.events import StatusEvent
from sas.sasgui.guiframe.events import SlicerParameterEvent
from sas.sasgui.guiframe.events import EVT_SLICER_PARS
from BaseInteractor import _BaseInteractor
from sas.sasgui.guiframe.dataFitting import Data1D


[docs]class BoxInteractor(_BaseInteractor): """ BoxInteractor define a rectangle that return data1D average of Data2D in a rectangle area defined by -x, x ,y, -y """ def __init__(self, base, axes, color='black', zorder=3): _BaseInteractor.__init__(self, base, axes, color=color) # # Class initialization self.markers = [] self.axes = axes # #connecting artist self.connect = self.base.connect # # which direction is the preferred interaction direction self.direction = None # # determine x y values self.x = 0.5 * min(math.fabs(self.base.data2D.xmax), math.fabs(self.base.data2D.xmin)) self.y = 0.5 * min(math.fabs(self.base.data2D.xmax), math.fabs(self.base.data2D.xmin)) # # when reach qmax reset the graph self.qmax = max(self.base.data2D.xmax, self.base.data2D.xmin, self.base.data2D.ymax, self.base.data2D.ymin) # # Number of points on the plot self.nbins = 30 # # If True, I(|Q|) will be return, otherwise, # negative q-values are allowed self.fold = True # # reference of the current Slab averaging self.averager = None # # Create vertical and horizaontal lines for the rectangle self.vertical_lines = VerticalLines(self, self.base.subplot, color='blue', zorder=zorder, y=self.y, x=self.x) self.vertical_lines.qmax = self.qmax self.horizontal_lines = HorizontalLines(self, self.base.subplot, color='green', zorder=zorder, x=self.x, y=self.y) self.horizontal_lines.qmax = self.qmax # # draw the rectangle and plost the data 1D resulting # # of averaging data2D self.update() self._post_data() # # Bind to slice parameter events self.base.Bind(EVT_SLICER_PARS, self._onEVT_SLICER_PARS) def _onEVT_SLICER_PARS(self, event): """ receive an event containing parameters values to reset the slicer :param event: event of type SlicerParameterEvent with params as attribute """ wx.PostEvent(self.base.parent, StatusEvent(status="BoxSlicer._onEVT_SLICER_PARS")) event.Skip() if event.type == self.__class__.__name__: self.set_params(event.params) self.base.update()
[docs] def update_and_post(self): """ Update the slicer and plot the resulting data """ self.update() self._post_data()
[docs] def set_layer(self, n): """ Allow adding plot to the same panel :param n: the number of layer """ self.layernum = n self.update()
[docs] def clear(self): """ Clear the slicer and all connected events related to this slicer """ self.averager = None self.clear_markers() self.horizontal_lines.clear() self.vertical_lines.clear() self.base.connect.clearall() self.base.Unbind(EVT_SLICER_PARS)
[docs] def update(self): """ Respond to changes in the model by recalculating the profiles and resetting the widgets. """ # #Update the slicer if an horizontal line is dragged if self.horizontal_lines.has_move: self.horizontal_lines.update() self.vertical_lines.update(y=self.horizontal_lines.y) # #Update the slicer if a vertical line is dragged if self.vertical_lines.has_move: self.vertical_lines.update() self.horizontal_lines.update(x=self.vertical_lines.x)
[docs] def save(self, ev): """ Remember the roughness for this layer and the next so that we can restore on Esc. """ self.base.freeze_axes() self.vertical_lines.save(ev) self.horizontal_lines.save(ev)
def _post_data(self): pass
[docs] def post_data(self, new_slab=None, nbins=None, direction=None): """ post data averaging in Qx or Qy given new_slab type :param new_slab: slicer that determine with direction to average :param nbins: the number of points plotted when averaging :param direction: the direction of averaging """ if self.direction is None: self.direction = direction x_min = -1 * math.fabs(self.vertical_lines.x) x_max = math.fabs(self.vertical_lines.x) y_min = -1 * math.fabs(self.horizontal_lines.y) y_max = math.fabs(self.horizontal_lines.y) if nbins is not None: self.nbins = nbins if self.averager is None: if new_slab is None: msg = "post data:cannot average , averager is empty" raise ValueError, msg self.averager = new_slab if self.direction == "X": if self.fold: x_low = 0 else: x_low = math.fabs(x_min) bin_width = (x_max + x_low) / self.nbins elif self.direction == "Y": if self.fold: y_low = 0 else: y_low = math.fabs(y_min) bin_width = (y_max + y_low) / self.nbins else: msg = "post data:no Box Average direction was supplied" raise ValueError, msg # # Average data2D given Qx or Qy box = self.averager(x_min=x_min, x_max=x_max, y_min=y_min, y_max=y_max, bin_width=bin_width) box.fold = self.fold boxavg = box(self.base.data2D) # 3 Create Data1D to plot if hasattr(boxavg, "dxl"): dxl = boxavg.dxl else: dxl = None if hasattr(boxavg, "dxw"): dxw = boxavg.dxw else: dxw = None new_plot = Data1D(x=boxavg.x, y=boxavg.y, dy=boxavg.dy) new_plot.dxl = dxl new_plot.dxw = dxw new_plot.name = str(self.averager.__name__) + \ "(" + self.base.data2D.name + ")" new_plot.source = self.base.data2D.source new_plot.interactive = True new_plot.detector = self.base.data2D.detector # # If the data file does not tell us what the axes are, just assume... new_plot.xaxis("\\rm{Q}", "A^{-1}") new_plot.yaxis("\\rm{Intensity} ", "cm^{-1}") data = self.base.data2D if hasattr(data, "scale") and data.scale == 'linear' and \ self.base.data2D.name.count("Residuals") > 0: new_plot.ytransform = 'y' new_plot.yaxis("\\rm{Residuals} ", "/") new_plot.group_id = "2daverage" + self.base.data2D.name new_plot.id = (self.averager.__name__) + self.base.data2D.name new_plot.is_data = True self.base.parent.update_theory(data_id=self.base.data2D.id, \ theory=new_plot) wx.PostEvent(self.base.parent, NewPlotEvent(plot=new_plot, title=str(self.averager.__name__)))
[docs] def moveend(self, ev): """ Called after a dragging event. Post the slicer new parameters and creates a new Data1D corresponding to the new average """ self.base.thaw_axes() # Post parameters event = SlicerParameterEvent() event.type = self.__class__.__name__ event.params = self.get_params() wx.PostEvent(self.base.parent, event) # create the new data1D self._post_data()
[docs] def restore(self): """ Restore the roughness for this layer. """ self.horizontal_lines.restore() self.vertical_lines.restore()
[docs] def move(self, x, y, ev): """ Process move to a new position, making sure that the move is allowed. """ pass
[docs] def set_cursor(self, x, y): pass
[docs] def get_params(self): """ Store a copy of values of parameters of the slicer into a dictionary. :return params: the dictionary created """ params = {} params["x_max"] = math.fabs(self.vertical_lines.x) params["y_max"] = math.fabs(self.horizontal_lines.y) params["nbins"] = self.nbins return params
[docs] def set_params(self, params): """ Receive a dictionary and reset the slicer with values contained in the values of the dictionary. :param params: a dictionary containing name of slicer parameters and values the user assigned to the slicer. """ self.x = float(math.fabs(params["x_max"])) self.y = float(math.fabs(params["y_max"])) self.nbins = params["nbins"] self.horizontal_lines.update(x=self.x, y=self.y) self.vertical_lines.update(x=self.x, y=self.y) self.post_data(nbins=None)
[docs] def freeze_axes(self): """ """ self.base.freeze_axes()
[docs] def thaw_axes(self): """ """ self.base.thaw_axes()
[docs] def draw(self): """ """ self.base.draw()
[docs]class HorizontalLines(_BaseInteractor): """ Draw 2 Horizontal lines centered on (0,0) that can move on the x- direction and in opposite direction """ def __init__(self, base, axes, color='black', zorder=5, x=0.5, y=0.5): """ """ _BaseInteractor.__init__(self, base, axes, color=color) # #Class initialization self.markers = [] self.axes = axes # # Saving the end points of two lines self.x = x self.save_x = x self.y = y self.save_y = y # # Creating a marker # Inner circle marker self.inner_marker = self.axes.plot([0], [self.y], linestyle='', marker='s', markersize=10, color=self.color, alpha=0.6, pickradius=5, label="pick", zorder=zorder, visible=True)[0] # # Define 2 horizontal lines self.top_line = self.axes.plot([self.x, -self.x], [self.y, self.y], linestyle='-', marker='', color=self.color, visible=True)[0] self.bottom_line = self.axes.plot([self.x, -self.x], [-self.y, -self.y], linestyle='-', marker='', color=self.color, visible=True)[0] # # Flag to check the motion of the lines self.has_move = False # # Connecting markers to mouse events and draw self.connect_markers([self.top_line, self.inner_marker]) self.update()
[docs] def set_layer(self, n): """ Allow adding plot to the same panel :param n: the number of layer """ self.layernum = n self.update()
[docs] def clear(self): """ Clear this slicer and its markers """ self.clear_markers() try: self.inner_marker.remove() self.top_line.remove() self.bottom_line.remove() except: # Old version of matplotlib for item in range(len(self.axes.lines)): del self.axes.lines[0]
[docs] def update(self, x=None, y=None): """ Draw the new roughness on the graph. :param x: x-coordinates to reset current class x :param y: y-coordinates to reset current class y """ # # Reset x, y- coordinates if send as parameters if x is not None: self.x = np.sign(self.x) * math.fabs(x) if y is not None: self.y = np.sign(self.y) * math.fabs(y) # # Draw lines and markers self.inner_marker.set(xdata=[0], ydata=[self.y]) self.top_line.set(xdata=[self.x, -self.x], ydata=[self.y, self.y]) self.bottom_line.set(xdata=[self.x, -self.x], ydata=[-self.y, -self.y])
[docs] def save(self, ev): """ Remember the roughness for this layer and the next so that we can restore on Esc. """ self.save_x = self.x self.save_y = self.y self.base.freeze_axes()
[docs] def moveend(self, ev): """ Called after a dragging this edge and set self.has_move to False to specify the end of dragging motion """ self.has_move = False self.base.moveend(ev)
[docs] def restore(self): """ Restore the roughness for this layer. """ self.x = self.save_x self.y = self.save_y
[docs] def move(self, x, y, ev): """ Process move to a new position, making sure that the move is allowed. """ self.y = y self.has_move = True self.base.base.update()
[docs]class VerticalLines(_BaseInteractor): """ Select an annulus through a 2D plot """ def __init__(self, base, axes, color='black', zorder=5, x=0.5, y=0.5): """ """ _BaseInteractor.__init__(self, base, axes, color=color) self.markers = [] self.axes = axes self.x = math.fabs(x) self.save_x = self.x self.y = math.fabs(y) self.save_y = y # Inner circle marker self.inner_marker = self.axes.plot([self.x], [0], linestyle='', marker='s', markersize=10, color=self.color, alpha=0.6, pickradius=5, label="pick", zorder=zorder, visible=True)[0] self.right_line = self.axes.plot([self.x, self.x], [self.y, -self.y], linestyle='-', marker='', color=self.color, visible=True)[0] self.left_line = self.axes.plot([-self.x, -self.x], [self.y, -self.y], linestyle='-', marker='', color=self.color, visible=True)[0] self.has_move = False self.connect_markers([self.right_line, self.inner_marker]) self.update()
[docs] def set_layer(self, n): """ Allow adding plot to the same panel :param n: the number of layer """ self.layernum = n self.update()
[docs] def clear(self): """ Clear this slicer and its markers """ self.clear_markers() try: self.inner_marker.remove() self.left_line.remove() self.right_line.remove() except: # Old version of matplotlib for item in range(len(self.axes.lines)): del self.axes.lines[0]
[docs] def update(self, x=None, y=None): """ Draw the new roughness on the graph. :param x: x-coordinates to reset current class x :param y: y-coordinates to reset current class y """ # # reset x, y -coordinates if given as parameters if x is not None: self.x = np.sign(self.x) * math.fabs(x) if y is not None: self.y = np.sign(self.y) * math.fabs(y) # # draw lines and markers self.inner_marker.set(xdata=[self.x], ydata=[0]) self.left_line.set(xdata=[-self.x, -self.x], ydata=[self.y, -self.y]) self.right_line.set(xdata=[self.x, self.x], ydata=[self.y, -self.y])
[docs] def save(self, ev): """ Remember the roughness for this layer and the next so that we can restore on Esc. """ self.save_x = self.x self.save_y = self.y self.base.freeze_axes()
[docs] def moveend(self, ev): """ Called after a dragging this edge and set self.has_move to False to specify the end of dragging motion """ self.has_move = False self.base.moveend(ev)
[docs] def restore(self): """ Restore the roughness for this layer. """ self.x = self.save_x self.y = self.save_y
[docs] def move(self, x, y, ev): """ Process move to a new position, making sure that the move is allowed. """ self.has_move = True self.x = x self.base.base.update()
[docs]class BoxInteractorX(BoxInteractor): """ Average in Qx direction """ def __init__(self, base, axes, color='black', zorder=3): BoxInteractor.__init__(self, base, axes, color=color) self.base = base self._post_data() def _post_data(self): """ Post data creating by averaging in Qx direction """ from sas.sascalc.dataloader.manipulations import SlabX self.post_data(SlabX, direction="X")
[docs]class BoxInteractorY(BoxInteractor): """ Average in Qy direction """ def __init__(self, base, axes, color='black', zorder=3): BoxInteractor.__init__(self, base, axes, color=color) self.base = base self._post_data() def _post_data(self): """ Post data creating by averaging in Qy direction """ from sas.sascalc.dataloader.manipulations import SlabY self.post_data(SlabY, direction="Y")