Source code for sas.qtgui.Plotting.Masks.BoxMask

import numpy as np

from sas.qtgui.Plotting.Slicers.BaseInteractor import BaseInteractor
from sas.qtgui.Plotting.Slicers.BoxSum import PointInteractor
from sas.qtgui.Plotting.Slicers.BoxSum import VerticalDoubleLine
from sas.qtgui.Plotting.Slicers.BoxSum import HorizontalDoubleLine


[docs]class BoxMask(BaseInteractor): """ BoxMask Class: determine 2 rectangular area to find the pixel of a Data inside of box. 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, side=None, x_min=0.008, x_max=0.008, y_min=0.0025, y_max=0.0025): """ """ BaseInteractor.__init__(self, base, axes, color=color) # list of Boxmask markers self.markers = [] self.axes = axes self.mask = None self.is_inside = side # connect the artist for the motion self.connect = self.base.connect # when qmax is reached the selected line is reset self.qmax = min(self.data.xmax, self.data.xmin) # Define the box limits self.xmin = -1 * 0.5 * min(np.fabs(self.data.xmax), np.fabs(self.data.xmin)) self.ymin = -1 * 0.5 * min(np.fabs(self.data.xmax), np.fabs(self.data.xmin)) self.xmax = 0.5 * min(np.fabs(self.data.xmax), np.fabs(self.data.xmin)) self.ymax = 0.5 * min(np.fabs(self.data.xmax), np.fabs(self.data.xmin)) # center of the box 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 # Flag to determine if the current figure has moved # set to False == no motion , set to True== motion self.has_move = False # Create Box edges self.horizontal_lines = HorizontalDoubleLine(self, self.axes, 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.axes, color='grey', 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.axes, 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()
[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()
[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) # if self.is_inside is not None: out = self._post_data() return out
[docs] def save(self, ev): """ Remember the roughness for this layer and the next so that we can restore on Esc. """ 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 """ from sas.sascalc.dataloader.manipulations import Boxcut # # Data 2D for which the pixel will be summed data = self.data mask = data.mask # # 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 mask = Boxcut(x_min=x_min, x_max=x_max, y_min=y_min, y_max=y_max) if self.is_inside: out = (mask(data) == False) else: out = (mask(data)) # self.base.data.mask=out self.mask = mask return out
[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._post_data()
[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"] = np.fabs(self.vertical_lines.half_width) * 2 params["Height"] = np.fabs(self.horizontal_lines.half_height) * 2 params["center_x"] = self.center.x params["center_y"] = self.center.y return params
[docs] def get_mask(self): """ return mask as a result of boxcut """ mask = self.mask return mask
[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 = np.fabs(params["Width"]) / 2 y_max = np.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 draw(self): self.base.update()