selection

Window to pick selection type/color, load/export ROIs and clear ROIS

class pdsspect.selection.SelectionController(image_set, view)

Bases: object

Controller for Selection

Parameters:

• image_set (PDSSpectImageSet) – pdsspect model
• view (Selection) – View to control

image_set

PDSSpectImageSet – pdsspect model

view

Selection – View to control

add_ROI(coordinates, color, image_set=None)

Add ROI with the given coordinates and color

Parameters:

• coordinates (numpy.ndarray or tuple) –

  Either a (m x 2) array or a tuple of two arrays

  If an array, the first column are the x coordinates and the second are the y coordinates. If a tuple of arrays, the first array are x coordinates and the second are the corresponding y coordinates.

• color (str) – The name a color in colors

change_alpha(new_alpha)

Change the alpha value to a new alpha value

Parameters:new_alpha (float) – Value between 0 and 100

change_current_color_index(index)

Change the current color index to a new index

Parameters:index (int) – The new color index

change_selection_index(index)

Change the selection index to a new index

Parameters:index (int) – The new selection index

clear_all()

Clear all ROIs

clear_current_color()

Clear all the ROIs with the currently selcted color

class pdsspect.selection.Selection(image_set, parent=None)

Bases: PyQt5.QtWidgets.QWidget, pdsspect.pdsspect_image_set.PDSSpectImageSetViewBase

Window to make/clear/load/export ROIs and choose selection mode/color

Parameters:

• image_set (PDSSpectImageSet) – pdsspect model
• parent (None) – Parent of the view

image_set

PDSSpectImageSet – pdsspect model

parent

None – Parent of the view

controller

SelectionController – View controller

type_label

QtWidgets.QLabel – Label for the selection menu

selection_menu

QtWidgets.QComboBox – Drop down menu of selection types

type_layout

QtWidgets.QHBoxLayout – Horizontal box layout for selection

color_label

QtWidgets.QLabel – Label for the color_menu

color_menu

QtWidgets.QComboBox – Drop down menu for color selection

color_layout

QtWidgets.QHBoxLayout – Horizontal box layout for color selection

opacity_label

QtWidgets.QLabel – Label for the opacity_slider

opacity_slider

QtWidgets.QSlider – Slider to determine opacity for ROIs

opacity_layout

QtWidgets.QHBoxLayout – Horizontal box layout for opacity slider

clear_current_color_btn

QtWidgets.QPushButton – Button to clear all ROIs will the current color

clear_all_btn

QtWidgets.QPushButton – Button to clear all ROIs

export_btn

QtWidgets.QPushButton – Export ROIs to .npz file

load_btn

QtWidgets.QPushButton – Load ROIs from .npz file

simultaneous_roi_box

QtWidgets.QPushButton – When checked, new ROIs appear in every window

main_layout

QtWidgets.QVBoxLayout – Vertical Box layout for main layout

change_alpha(new_alpha)

Change alpha value when opacity_slider value changes

change_color(index)

Change the color when color selected in color_menu

change_selection_type(index)

Change selection type when selected in selection_menu

clear_all()

Clear all ROIs

clear_current_color()

Clear all ROIs with current color

export(save_file)

Export ROIS to the given filename

Parameters:save_file (str) – File with .npz extension to save ROIs

load_selections(selected_files)

Load ROIs from selected files

Parameters:selected_files (list of str) – Paths to files storing ROIs

open_save_dialog()

Open save file dialog and save rois to given filename

show_open_dialog()

Open file dialog to select .npz files to load ROIs