One entity is selected each time the user
clicks the mouse button.
rectangular
cut-out
The user draws a rectangle on the screen.
The program selects all entities located inside the rectangle
or overlapping it (see the paragraph below for details about this
selection mode).
intersection
line
The user draws a line (or a polygon) on
the screen. The program selects all entities that have an intersection
with the drawn line.
polygonal
cut-out
The user draws a closed polygon on the screen.
The program selects all entities located inside the polygon
select-all
All currently displayed entities are selected
previous
Activates the last made selection.
clear selection
The current selection is cleared (the entities
are not deleted, they are just unselected).
Note:
For more information about selections in general see chapter Basic
working tools > Selections.
