Autodesk CIVIL3D - CIVILDESIGNCOMP 2007 SLM CD Tutorials Manual page 673

10 Add a diameter dimension that you can later use as a structure parameter.
Right-click the Rim work plane
command line prompts you to select circle or arc geometry. Select the
circular profile on the screen. The command line prompts you to select
a dimension position. Select a location on your screen that is close to the
profile, but out of your way. A diameter dimension is displayed on screen
as well as under your Model Parameters. The actual drawn diameter and
dimension value are unimportant at this time.
11 Draw a circular profile on the Top of Riser 1 work plane. Right-click the
Top of Riser 1 work plane, and then click Add Profile
Following the same procedure as Step 7, draw a circular profile. You can
use your center OSNAP to ensure that the center of this profile matches
the center of the profile from the Rim work plane. Set the radius to be
just slightly larger than the Rim work plane circular profile to ease
selection of this profile. The actual radius is not important at this time.
A circular profile is displayed.
12 Add a diameter dimension to the circular profile on the Top of Riser 1
work plane. Right-click the Top of Riser 1 work plane, and then click Add
Dimension Diameter. Follow the same procedure as step 10 to place
the dimension. A diameter dimension is displayed for your second circular
profile.
13 Repeat the previous two steps to create a circular profile and corresponding
dimension on the Top of Cone work plane. You have three circular profiles
with appropriate dimensions. Your dimensions may look different than
the following illustration.
14 Repeat steps 11 and 12 to create a circular profile and corresponding
dimension for the Top of Riser 2 work plane; however, this time, make
the profile radius approximately twice as large (approximately 24"
radius/48" diameter). You should have four circular profiles displayed,
and four corresponding dimensions displayed in the modeling area, and
under Model Parameters node.
Exercise 2: Defining the Manhole Geometry | 661
Add Dimension Diameter. The
Circular.