2012

Table Of Contents
These selection previewing effects are turned on by default. You can turn them
off with the SELECTIONPREVIEW system variable. When the PICKBOX system
variable is set to 0, selection previewing of objects is not available.
Control the Appearance of Selected Objects
By default, selected objects are displayed with dashed lines. You can increase
program performance by setting the HIGHLIGHT system variable to 0. Turning
off selection highlighting does not affect grips on selected objects.
Set Up Default Selection Methods
The default selection methods are:
Use selection previewing and selection area effects to preview selection.
Select objects before entering a command (noun-verb selection) or after
entering a command. (PICKFIRST)
Press Shift to append objects to the selection set. (PICKADD)
Click and drag to create a selection window. Otherwise you must click
twice to define the corners of a selection window. (PICKDRAG)
Start Window or Crossing selection automatically when you click an empty
space. Otherwise, you must enter c or w to specify window crossing
selection. (PICKAUTO)
Change the size of the pickbox. (PICKBOX)
Select all objects in a group when you select one object in that group.
Include the boundary in the selection set when you select a hatch.
Group Objects
A group is a saved set of objects that you can select and edit together or
separately as needed. Groups provide an easy way to combine drawing elements
that you need to manipulate as a unit.
See also:
Create and Use Blocks (Symbols) (page 321)
228 | Chapter 6 Create and Modify Objects