Wiley 978-1-1180-1681-7 Datasheet download pdf (Page 24)

CHAPTER 1 The Basics of auTocaD civil 3D

When you’re using the Create Line By Side Shot command, you’re given a setup glyph at

your occupied point, a backsight glyph, and a tooltip to track the angle, bearing, deﬂection, or

azimuth of the side shot (see Figure 1.24). You can toggle between these options by following the

command-line prompts.

cr e a t e li n e ex t e n s i o n co m m a n d

The Create Line Extension command is similar to the AutoCAD Lengthen command. This com-

mand allows you to add length to a line or specify a desired total length of the line.

You are ﬁrst prompted to choose a line. The command line then displays the prompt Specify

distance to change, or [Total]. The distance you specify is added to the existing length of

the line. The command draws the line appropriately and provides a short summary report on

that line. The summary report in Figure 1.25 indicates that the beginning line length was 100″

and that an additional distance of 50″ was speciﬁed with the Line Extension command. It is

important to note that in some cases, it may be more desirable to create a line by a turned angle

or deﬂection of 180 degrees so as not to disturb linework originally created from existing legally

recorded documents.

If instead you specify a total distance on the command line, the length of the line is changed

to the distance you specify. The summary report shown in Figure 1.26 indicates that the begin-

ning of the line was the same as in Figure 1.26 but with a total length of only 100″.

Figure 1.24

The tooltip for the

Create Line By Side

Shot command

tracks the angle,

bearing, deﬂec-

tion, or azimuth of

the side shot.

Backsight

Station Setup

Figure 1.25

The Create Line

Extension com-

mand provides a

summary of the

changes to the line.

Figure 1.26

The summary

report on a line

where the com-

mand speciﬁed a

total distance

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Wiley 978-1-1180-1681-7 Datasheet Page 24