Graphics Programs Reference
In-Depth Information
Creating a Pipe Network from objects
At times, you'll find it easier to start with AutoCAD
®
commands to sketch your pipe
network using basic entities. This approach works well because Civil 3D provides
a command that converts these basic entities to pipe networks: the Create Pipe
Network From Object command. This command creates pipe networks from Civil
3D alignments and feature lines as well. One disadvantage to this method is that
the same parts are used for pipes and structures throughout the entire network.
If you haven't already
done so, download
and install the files for
Chapter 14 according to
the instructions in the
Introduction.
◀
Exercise 14.1: Create a Pipe Network from objects
In this exercise, you'll use the Create Pipe Network From Object command to
create several sanitary sewer networks from polylines provided in the drawing.
Make sure your screen
background color is set
to white before con-
tinuing this exercise.
1.
Open the drawing named
Creating Pipe Networks From Objects.dwg
located in the
Chapter 14
class data folder.
◀
2.
In the left viewport, zoom in to the beginning of the Jordan Court
alignment at the north end of the project.
Note the heavy green polyline marked SAN that has been sketched
in to represent the location of a new sanitary sewer pipeline.
Some black arrows
appear that point
toward the south.
These arrows indicate
the assumed flow
direction of the pipes.
3.
On the Home tab of the ribbon, click Pipe Network
➢
Create Pipe
Network From Object.
◀
4.
Click the green polyline with the SAN label on it. Press Enter to accept
the current flow direction.
5.
In the Create Pipe Network From Object dialog box, do the following:
This surface will be
used to automatically
set the top elevations
of the structures.
a.
For Network Name, enter
Sanitary
.
b.
For Network Parts List, select Sanitary Sewer.
◀
c.
For Surface Name, select Road FG.
◀
d.
For Alignment Name, select Jordan Court.
e.
Check the box next to Erase Existing Entity.
By referencing an
alignment, you'll be
able to express the
locations of pipes and
structures using sta-
tion and offset values.
f.
Click OK.
A new pipe network is created in place of the polyline.
6.
In the bottom-right viewport, zoom in to one of the manholes.
In plan view, the entities look simple, but in this view you see that
they are actually 3D pipe and structure objects (see Figure 14.4).
