Graphics Programs Reference
In-Depth Information
Pipe Endpoint Grips - Profile view
These grips change the elevation of a
pipe at its endpoint. The diamond-shaped grip at the top sets the crown (top of
the inside wall) elevation. The diamond-shaped grip at the bottom sets the invert
(bottom of the inside wall) elevation. The triangular grip sets the centerline ele-
vation. These grips can be used in conjunction with the AutoCAD Dynamic Input
feature to view the elevation or even type it in. They don't change the horizontal
location of the pipe's endpoint.
Pipe Midpoint - Square Grip - Profile view
This grip changes the elevation
of the pipe without changing its slope. It doesn't affect the location of the pipe in
plan view.
You should note that when you change the location of the endpoint of a pipe in
plan view, the structure connected to it doesn't move with it. To place the struc-
ture at the end of the pipe, you must move the structure as a separate action. If
you don't update the location of the structure, the pipe may reset to match the
structure at some point in the future.
Exercise 14.4: Edit a Pipe Network using Grips
◀
In this exercise, you'll use grips to make some adjustments to the storm network.
If you haven't already
done so, download
and install the files for
Chapter 14 according to
the instructions in the
Introduction.
1.
Open the drawing named
Editing Pipe Networks Using Grips.dwg
located in the
Chapter 14
class data folder.
2.
In the plan view on the left, zoom in to the inlets located at station
5+5 0 (0+170).
3.
Click both inlets to select them, and then click the circular grip on
the inlet to the east.
◀
4.
Click the square grip of the west inlet.
This rotates the east inlet to align it with the west inlet, which also
aligns the east inlet with the curb.
Step 4 will be easier if
you press F3 to turn off
running object snaps.
5.
If it isn't already turned on, click the Dynamic Input icon at the bot-
tom of your screen to turn it on.
◀
6.
Zoom in to the pipe at station 5+50 (0+170), and select it. Click the
triangular grip at the midpoint of the pipe.
If the Dynamic Input
icon isn't visible, turn it
on using the status bar
customization menu,
accessed by clicking the
icon in the bottom-right
corner of your screen.
7.
Drag the grip away from the pipe, and click when the dynamic input
text box reads 1.5 (0.450). Or you can just type
1.5
(
0.450
) in the box,
as shown in Figure 14.11.
This changes the diameter of the pipe to 18 inches (450mm).
