Graphics Programs Reference
In-Depth Information
TIP the buttons you've been clicking in this chapter are also referred to
as icons and tools . When they're in dialog boxes or on the status bar, they have
icons (little pictures) on them and look like buttons to push. When they're on the
ribbon or toolbars, they look like icons. But when you move the pointer arrow
cursor onto one, it takes on the appearance of a button with an icon on it. I'll use
all three terms — button , icon , and tool — interchangeably throughout this topic.
Extending Lines
The EXTEND command is used to lengthen (extend) lines to meet other lines or
geometric figures (called boundary edges ). Executing the EXTEND command
may be a little tricky at first until you see how it works. Once you understand it,
however, it will become automatic. The command has two steps: first, you pick
the boundary edge or edges; second, you pick the lines you want to extend to
meet those boundary edges. After selecting the boundary edges, you must press
before you begin selecting lines to extend.
1. Launch the EXTEND command by selecting the Home tab Modify
panel Extend tool. If you don't see it, click the down arrow next to
the Trim icon and then choose Extend from the fly-out menu.
2. Notice in the command window that the bottom line says Select
objects or <select all>: , but in this case you need to observe the
bottom two lines of text in order to know that AutoCAD is prompting
you to select boundary edges (see Figure 2.30).
FiGuRE 2.30 The command window while using the EXTEND command
3. Pick the very bottom horizontal line (see Figure 2.31), and press .
You can also start the
EXTEND command
by entering EX .
TIP t h e Select Objects: prompt would be more useful if it said
“Select objects and press enter when finished selecting objects.” But it
doesn't. You have to train yourself to press when you finish selecting
objects in order to get out of Selection mode and move on to the next step
in the command.
 
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