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

"""
    Boxsum Class: determine 2 rectangular area to compute
    the sum of pixel of a Data.
"""
import math
import wx
from BaseInteractor import _BaseInteractor
from sas.sasgui.guiframe.events import SlicerParamUpdateEvent
from sas.sasgui.guiframe.events import EVT_SLICER_PARS
from sas.sasgui.guiframe.events import StatusEvent


[docs]class BoxSum(_BaseInteractor): """ Boxsum Class: determine 2 rectangular area to compute the sum of pixel of a Data. Uses PointerInteractor , VerticalDoubleLine,HorizontalDoubleLine. @param zorder: Artists with lower zorder values are drawn first. @param x_min: the minimum value of the x coordinate @param x_max: the maximum value of the x coordinate @param y_min: the minimum value of the y coordinate @param y_max: the maximum value of the y coordinate """ def __init__(self, base, axes, color='black', zorder=3, x_min=0.008, x_max=0.008, y_min=0.0025, y_max=0.0025): """ """ _BaseInteractor.__init__(self, base, axes, color=color) # # class initialization # # list of Boxsmun markers self.markers = [] self.axes = axes # # connect the artist for the motion self.connect = self.base.connect # # when qmax is reached the selected line is reset the its previous value self.qmax = min(self.base.data2D.xmax, self.base.data2D.xmin) # # Define the boxsum limits self.xmin = -1 * 0.5 * min(math.fabs(self.base.data2D.xmax), math.fabs(self.base.data2D.xmin)) self.ymin = -1 * 0.5 * min(math.fabs(self.base.data2D.xmax), math.fabs(self.base.data2D.xmin)) self.xmax = 0.5 * min(math.fabs(self.base.data2D.xmax), math.fabs(self.base.data2D.xmin)) self.ymax = 0.5 * min(math.fabs(self.base.data2D.xmax), math.fabs(self.base.data2D.xmin)) # # center of the boxSum self.center_x = 0.0002 self.center_y = 0.0003 # # Number of points on the plot self.nbins = 20 # # Define initial result the summation self.count = 0 self.error = 0 self.total = 0 self.totalerror = 0 self.points = 0 # # Flag to determine if the current figure has moved # # set to False == no motion , set to True== motion self.has_move = False # # Create Boxsum edges self.horizontal_lines = HorizontalDoubleLine(self, self.base.subplot, color='blue', zorder=zorder, y=self.ymax, x=self.xmax, center_x=self.center_x, center_y=self.center_y) self.horizontal_lines.qmax = self.qmax self.vertical_lines = VerticalDoubleLine(self, self.base.subplot, color='black', zorder=zorder, y=self.ymax, x=self.xmax, center_x=self.center_x, center_y=self.center_y) self.vertical_lines.qmax = self.qmax self.center = PointInteractor(self, self.base.subplot, color='grey', zorder=zorder, center_x=self.center_x, center_y=self.center_y) # # Save the name of the slicer panel associate with this slicer self.panel_name = "" # # Update and post slicer parameters self.update() self._post_data() # # Bind to slice parameter events self.base.Bind(EVT_SLICER_PARS, self._onEVT_SLICER_PARS)
[docs] def set_panel_name(self, name): """ Store the name of the panel associated to this slicer @param name: the name of this panel """ self.panel_name = name
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 """ # # Post e message to declare what kind of event has being received wx.PostEvent(self.base.parent, StatusEvent(status="Boxsum._onEVT_SLICER_PARS")) event.Skip() # # reset the slicer with the values contains the event.params dictionary if event.type == self.__class__.__name__: self.set_params(event.params) self.base.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 the slicer and all connected events related to this slicer """ self.clear_markers() self.horizontal_lines.clear() self.vertical_lines.clear() self.center.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. """ # # check if the center point has moved and update the figure accordingly if self.center.has_move: self.center.update() self.horizontal_lines.update(center=self.center) self.vertical_lines.update(center=self.center) # # check if the horizontal lines have moved and # update the figure accordingly if self.horizontal_lines.has_move: self.horizontal_lines.update() self.vertical_lines.update(y1=self.horizontal_lines.y1, y2=self.horizontal_lines.y2, height=self.horizontal_lines.half_height) # # check if the vertical lines have moved and # update the figure accordingly if self.vertical_lines.has_move: self.vertical_lines.update() self.horizontal_lines.update(x1=self.vertical_lines.x1, x2=self.vertical_lines.x2, width=self.vertical_lines.half_width)
[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.horizontal_lines.save(ev) self.vertical_lines.save(ev) self.center.save(ev)
def _post_data(self): """ Get the limits of the boxsum and compute the sum of the pixel contained in that region and the error on that sum """ # # the region of the summation x_min = self.horizontal_lines.x2 x_max = self.horizontal_lines.x1 y_min = self.vertical_lines.y2 y_max = self.vertical_lines.y1 # #computation of the sum and its error from sas.sascalc.dataloader.manipulations import Boxavg box = Boxavg(x_min=x_min, x_max=x_max, y_min=y_min, y_max=y_max) self.count, self.error = box(self.base.data2D) # Dig out number of points summed, SMK & PDB, 04/03/2013 from sas.sascalc.dataloader.manipulations import Boxsum boxtotal = Boxsum(x_min=x_min, x_max=x_max, y_min=y_min, y_max=y_max) self.total, self.totalerror, self.points = boxtotal(self.base.data2D)
[docs] def moveend(self, ev): """ After a dragging motion this function is called to compute the error and the sum of pixel of a given data 2D """ self.base.thaw_axes() # # compute error an d sum of data's pixel self._post_data() # # Create and event ( posted to guiframe)that set the # #current slicer parameter to a panel of name self.panel_name self.type = self.__class__.__name__ params = self.get_params() event = SlicerParamUpdateEvent(type=self.type, params=params, panel_name=self.panel_name) wx.PostEvent(self.base.parent, event)
[docs] def restore(self): """ Restore the roughness for this layer. """ self.horizontal_lines.restore() self.vertical_lines.restore() self.center.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["Width"] = math.fabs(self.vertical_lines.half_width) * 2 params["Height"] = math.fabs(self.horizontal_lines.half_height) * 2 params["center_x"] = self.center.x params["center_y"] = self.center.y params["num_points"] = self.points params["avg"] = self.count params["avg_error"] = self.error params["sum"] = self.total params["sum_error"] = self.totalerror return params
[docs] def get_result(self): """ return the result of box summation """ result = {} result["num_points"] = self.points result["avg"] = self.count result["avg_error"] = self.error result["sum"] = self.total result["sum_error"] = self.totalerror return result
[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. """ x_max = math.fabs(params["Width"]) / 2 y_max = math.fabs(params["Height"]) / 2 self.center_x = params["center_x"] self.center_y = params["center_y"] # update the slicer given values of params self.center.update(center_x=self.center_x, center_y=self.center_y) self.horizontal_lines.update(center=self.center, width=x_max, height=y_max) self.vertical_lines.update(center=self.center, width=x_max, height=y_max) # compute the new error and sum given values of params self._post_data()
[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 PointInteractor(_BaseInteractor): """ Draw a point that can be dragged with the marker. this class controls the motion the center of the BoxSum """ def __init__(self, base, axes, color='black', zorder=5, center_x=0.0, center_y=0.0): """ """ _BaseInteractor.__init__(self, base, axes, color=color) # # Initialization the class self.markers = [] self.axes = axes # center coordinates self.x = center_x self.y = center_y # # saved value of the center coordinates self.save_x = center_x self.save_y = center_y # # Create a marker self.center_marker = self.axes.plot([self.x], [self.y], linestyle='', marker='s', markersize=10, color=self.color, alpha=0.6, pickradius=5, label="pick", zorder=zorder, visible=True)[0] # # Draw a point self.center = self.axes.plot([self.x], [self.y], linestyle='-', marker='', color=self.color, visible=True)[0] # # Flag to determine the motion this point self.has_move = False # # connecting the marker to allow them to move self.connect_markers([self.center_marker]) # # Update the figure 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 figure and its markers """ self.clear_markers() try: self.center.remove() self.center_marker.remove() except: # Old version of matplotlib for item in range(len(self.axes.lines)): del self.axes.lines[0]
[docs] def update(self, center_x=None, center_y=None): """ Draw the new roughness on the graph. """ if center_x is not None: self.x = center_x if center_y is not None: self.y = center_y self.center_marker.set(xdata=[self.x], ydata=[self.y]) self.center.set(xdata=[self.x], ydata=[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): """ """ self.has_move = False self.base.moveend(ev)
[docs] def restore(self): """ Restore the roughness for this layer. """ self.y = self.save_y self.x = self.save_x
[docs] def move(self, x, y, ev): """ Process move to a new position, making sure that the move is allowed. """ self.x = x self.y = y self.has_move = True self.base.base.update()
[docs] def set_cursor(self, x, y): """ """ self.move(x, y, None) self.update()
[docs]class VerticalDoubleLine(_BaseInteractor): """ Draw 2 vertical lines moving in opposite direction and centered on a point (PointInteractor) """ def __init__(self, base, axes, color='black', zorder=5, x=0.5, y=0.5, center_x=0.0, center_y=0.0): """ """ _BaseInteractor.__init__(self, base, axes, color=color) # # Initialization the class self.markers = [] self.axes = axes # # Center coordinates self.center_x = center_x self.center_y = center_y # # defined end points vertical lignes and their saved values self.y1 = y + self.center_y self.save_y1 = self.y1 delta = self.y1 - self.center_y self.y2 = self.center_y - delta self.save_y2 = self.y2 self.x1 = x + self.center_x self.save_x1 = self.x1 delta = self.x1 - self.center_x self.x2 = self.center_x - delta self.save_x2 = self.x2 # # save the color of the line self.color = color # # the height of the rectangle self.half_height = math.fabs(y) self.save_half_height = math.fabs(y) # # the with of the rectangle self.half_width = math.fabs(self.x1 - self.x2) / 2 self.save_half_width = math.fabs(self.x1 - self.x2) / 2 # # Create marker self.right_marker = self.axes.plot([self.x1], [0], linestyle='', marker='s', markersize=10, color=self.color, alpha=0.6, pickradius=5, label="pick", zorder=zorder, visible=True)[0] # # define the left and right lines of the rectangle self.right_line = self.axes.plot([self.x1, self.x1], [self.y1, self.y2], linestyle='-', marker='', color=self.color, visible=True)[0] self.left_line = self.axes.plot([self.x2, self.x2], [self.y1, self.y2], linestyle='-', marker='', color=self.color, visible=True)[0] # # Flag to determine if the lines have moved self.has_move = False # # connection the marker and draw the pictures self.connect_markers([self.right_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.right_marker.remove() self.right_line.remove() self.left_line.remove() except: # Old version of matplotlib for item in range(len(self.axes.lines)): del self.axes.lines[0]
[docs] def update(self, x1=None, x2=None, y1=None, y2=None, width=None, height=None, center=None): """ Draw the new roughness on the graph. :param x1: new maximum value of x coordinates :param x2: new minimum value of x coordinates :param y1: new maximum value of y coordinates :param y2: new minimum value of y coordinates :param width: is the width of the new rectangle :param height: is the height of the new rectangle :param center: provided x, y coordinates of the center point """ # # save the new height, witdh of the rectangle if given as a param if width is not None: self.half_width = width if height is not None: self.half_height = height # # If new center coordinates are given draw the rectangle # #given these value if center is not None: self.center_x = center.x self.center_y = center.y self.x1 = self.half_width + self.center_x self.x2 = -self.half_width + self.center_x self.y1 = self.half_height + self.center_y self.y2 = -self.half_height + self.center_y self.right_marker.set(xdata=[self.x1], ydata=[self.center_y]) self.right_line.set(xdata=[self.x1, self.x1], ydata=[self.y1, self.y2]) self.left_line.set(xdata=[self.x2, self.x2], ydata=[self.y1, self.y2]) return # # if x1, y1, y2, y3 are given draw the rectangle with this value if x1 is not None: self.x1 = x1 if x2 is not None: self.x2 = x2 if y1 is not None: self.y1 = y1 if y2 is not None: self.y2 = y2 # # Draw 2 vertical lines and a marker self.right_marker.set(xdata=[self.x1], ydata=[self.center_y]) self.right_line.set(xdata=[self.x1, self.x1], ydata=[self.y1, self.y2]) self.left_line.set(xdata=[self.x2, self.x2], ydata=[self.y1, self.y2])
[docs] def save(self, ev): """ Remember the roughness for this layer and the next so that we can restore on Esc. """ self.save_x2 = self.x2 self.save_y2 = self.y2 self.save_x1 = self.x1 self.save_y1 = self.y1 self.save_half_height = self.half_height self.save_half_width = self.half_width self.base.freeze_axes()
[docs] def moveend(self, ev): """ After a dragging motion reset the flag self.has_move to False """ self.has_move = False self.base.moveend(ev)
[docs] def restore(self): """ Restore the roughness for this layer. """ self.y2 = self.save_y2 self.x2 = self.save_x2 self.y1 = self.save_y1 self.x1 = self.save_x1 self.half_height = self.save_half_height self.half_width = self.save_half_width
[docs] def move(self, x, y, ev): """ Process move to a new position, making sure that the move is allowed. """ self.x1 = x delta = self.x1 - self.center_x self.x2 = self.center_x - delta self.half_width = math.fabs(self.x1 - self.x2) / 2 self.has_move = True self.base.base.update()
[docs] def set_cursor(self, x, y): """ Update the figure given x and y """ self.move(x, y, None) self.update()
[docs]class HorizontalDoubleLine(_BaseInteractor): """ Select an annulus through a 2D plot """ def __init__(self, base, axes, color='black', zorder=5, x=0.5, y=0.5, center_x=0.0, center_y=0.0): _BaseInteractor.__init__(self, base, axes, color=color) # # Initialization the class self.markers = [] self.axes = axes # # Center coordinates self.center_x = center_x self.center_y = center_y self.y1 = y + self.center_y self.save_y1 = self.y1 delta = self.y1 - self.center_y self.y2 = self.center_y - delta self.save_y2 = self.y2 self.x1 = x + self.center_x self.save_x1 = self.x1 delta = self.x1 - self.center_x self.x2 = self.center_x - delta self.save_x2 = self.x2 self.color = color self.half_height = math.fabs(y) self.save_half_height = math.fabs(y) self.half_width = math.fabs(x) self.save_half_width = math.fabs(x) self.top_marker = self.axes.plot([0], [self.y1], linestyle='', marker='s', markersize=10, color=self.color, alpha=0.6, pickradius=5, label="pick", zorder=zorder, visible=True)[0] # Define 2 horizotnal lines self.top_line = self.axes.plot([self.x1, -self.x1], [self.y1, self.y1], linestyle='-', marker='', color=self.color, visible=True)[0] self.bottom_line = self.axes.plot([self.x1, -self.x1], [self.y2, self.y2], linestyle='-', marker='', color=self.color, visible=True)[0] # # Flag to determine if the lines have moved self.has_move = False # # connection the marker and draw the pictures self.connect_markers([self.top_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 figure and its markers """ self.clear_markers() try: self.top_marker.remove() self.bottom_line.remove() self.top_line.remove() except: # Old version of matplotlib for item in range(len(self.axes.lines)): del self.axes.lines[0]
[docs] def update(self, x1=None, x2=None, y1=None, y2=None, width=None, height=None, center=None): """ Draw the new roughness on the graph. :param x1: new maximum value of x coordinates :param x2: new minimum value of x coordinates :param y1: new maximum value of y coordinates :param y2: new minimum value of y coordinates :param width: is the width of the new rectangle :param height: is the height of the new rectangle :param center: provided x, y coordinates of the center point """ # # save the new height, witdh of the rectangle if given as a param if width is not None: self.half_width = width if height is not None: self.half_height = height # # If new center coordinates are given draw the rectangle # #given these value if center is not None: self.center_x = center.x self.center_y = center.y self.x1 = self.half_width + self.center_x self.x2 = -self.half_width + self.center_x self.y1 = self.half_height + self.center_y self.y2 = -self.half_height + self.center_y self.top_marker.set(xdata=[self.center_x], ydata=[self.y1]) self.top_line.set(xdata=[self.x1, self.x2], ydata=[self.y1, self.y1]) self.bottom_line.set(xdata=[self.x1, self.x2], ydata=[self.y2, self.y2]) return # # if x1, y1, y2, y3 are given draw the rectangle with this value if x1 is not None: self.x1 = x1 if x2 is not None: self.x2 = x2 if y1 is not None: self.y1 = y1 if y2 is not None: self.y2 = y2 # # Draw 2 vertical lines and a marker self.top_marker.set(xdata=[self.center_x], ydata=[self.y1]) self.top_line.set(xdata=[self.x1, self.x2], ydata=[self.y1, self.y1]) self.bottom_line.set(xdata=[self.x1, self.x2], ydata=[self.y2, self.y2])
[docs] def save(self, ev): """ Remember the roughness for this layer and the next so that we can restore on Esc. """ self.save_x2 = self.x2 self.save_y2 = self.y2 self.save_x1 = self.x1 self.save_y1 = self.y1 self.save_half_height = self.half_height self.save_half_width = self.half_width self.base.freeze_axes()
[docs] def moveend(self, ev): """ After a dragging motion reset the flag self.has_move to False """ self.has_move = False self.base.moveend(ev)
[docs] def restore(self): """ Restore the roughness for this layer. """ self.y2 = self.save_y2 self.x2 = self.save_x2 self.y1 = self.save_y1 self.x1 = self.save_x1 self.half_height = self.save_half_height self.half_width = self.save_half_width
[docs] def move(self, x, y, ev): """ Process move to a new position, making sure that the move is allowed. """ self.y1 = y delta = self.y1 - self.center_y self.y2 = self.center_y - delta self.half_height = math.fabs(self.y1) - self.center_y self.has_move = True self.base.base.update()
[docs] def set_cursor(self, x, y): """ Update the figure given x and y """ self.move(x, y, None) self.update()