Tutorials:
gui.objects.display.
Display
Bases: PyQt5.QtWidgets.QGraphicsView
PyQt5.QtWidgets.QGraphicsView
gui.objects.group.
Group
Bases: object
object
add_elem
add_group
child
get_structure
rmv_elem
rmv_group
gui.objects.scene.
Scene
Bases: PyQt5.QtWidgets.QGraphicsScene
PyQt5.QtWidgets.QGraphicsScene
add_layer
rmv_layer
update_layers