9

Selecting by Region 65
Tip:
You can also hold down Alt while you
click to remove objects from selections.
To lock a selection:
1.
Select an object.
2. Click the Selection Lock Toggle (page
3–707) on the status bar to turn on locked
selection mode.
While your selection is lock ed, you can drag the
mouseanywhereonthescreenwithoutlosing
the selection. The cu rsor displays the current
selection icon. When you want to deselect or
alteryourselection,clicktheLockbuttonagain
to turn off locked selection mode. SPACEBAR
is the keybo ard toggle for locked select ion
mode.
To deselect an object, do any of the following:
•Clickanemptyareaanywhereoutsidethe
current selection.
•Holddownthe
Alt key, and either click an
object, or drag a region around the object to
deselect it.
•Holddownthe
Ctrl key and click to deselect a
selected object. This also selects non-selected
objects.
• Choose Edit menu > Select None to deselect
all objects in the scene.
Selecting by R egion
Top Left: Selecting face sub-objects w ith a rectangular region
Top Right: S elec ting vertex sub-objec ts with a circular region
Center: S electing face sub-objects with a painted re gion
Bottom Left: Selecting edge sub-objects with a fence region
Bottom Right: Selecting edge sub-objects with a lasso region
The region-selection tools let you use the mouse to
select one or more objects by defining an outline
or area.
Region Selection
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 describe s
how you can change each of these settings.
Note: If you hold down Ctr l while specifying
a region, the affected objects are added to the
current selection. Conversely, if you hold down
Alt while specify ing a region, the affected objects
are removed from the current selection.