8

Selecting by Region 65
Tip:
You can also hold dow n ALT while you click
to remove objects from selections.
To lock a selection:
1.
Select an object.
2. Click the Selection Lock Toggle (page
3–754)
on the status bar to tu rn on locked
selection mode.
While your selection is locked, you can drag the
mouseanywhereonthescreenwithoutlosing
the selection. The cursor displays the current
selection icon. When you want to deselect or
alteryourselection,clicktheLockbuttonagain
to turn off locked selection mode. SPA CEBAR
is the keyboard toggle for locked selec tion
mode.
To deselect a n object, do any of the following:
•Clickanemptyareaanywhereoutsidethe
current select ion.
• Hold down the ALT key, and either click an
object, or drag a region around the object to
deselect it.
• Hold down the 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-o bjects with a rectangular
region
Top Right: Selecting vertex sub-objects with a circular
region
Bottom Left: Selecting edge sub-objects w ith a fence region
Bottom R ig ht: 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 describes
how you can change each of these settings.
Note: IfyouholddownCTRLwhilespecifying
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.