tools let you use the mouse to select one or more objects by defining
an outline or area.
Top Left: Selecting
face sub-objects with a rectangular region
Top Right: Selecting
vertex sub-objects with a circular region
Center: Selecting face
sub-objects with a painted region
Bottom Left: Selecting
edge sub-objects with a fence region
Bottom Right: Selecting
edge sub-objects with a lasso region
By default, when you
drag the mouse a rectangular region is created. When you release
the mouse all objects within and touched by the region are selected.
The remainder of this topic describes how you can change each of these
NoteIf you hold down Ctrl while specifying a region,
the affected objects are added to the current selection. Conversely,
if you hold down Alt while specifying
a region, the affected objects are removed from the current selection.
Setting Region Type
The type of region you
define when you drag the mouse is set by the Region flyout button
to the right of the Select By Name button. You can use any of five
types of region selection:
Setting Region Inclusion
This option lets you
specify whether to include objects touched by the region border.
It applies to all region methods.
Choose Edit menu Region to display a
submenu of the following two items. Only one can be active at a
toggle on the main toolbar also switches
between these two modes.
- Crossing (The
default.) Selects all objects that are within the region and crossing
the boundaries of the region. See
only objects that are completely within the region. See
You can set up a preference
to switch automatically between Window and crossing based on the
direction of your cursor movement. See
Auto Window/Crossing by Direction in
To make a region selection using defaults:
- Click (
- Drag the mouse to define a region.
A rubber-band rectangle
- Release the mouse button to select all
objects within or touching the region.
The selected objects
You can also use the
Select And Transform buttons on the main toolbar to select by region.
You must start defining the region over an unselectable area of
the viewport. Otherwise, you’ll transform the object beneath your
mouse when you begin to drag.