Graphics Programs Reference
In-Depth Information
7.
Press Esc to clear the selection of the red polyline. Zoom in to the
interior lots, and identify the green feature line that forms the back
sides of lots 68-70.
8.
Click Quick Profile on the ribbon. When you're prompted to select an
object, click the green feature line described in the previous step.
9.
On the Create Quick Profiles dialog, check the box next to EG. Make
sure the Draw 3D Entity Profile option is checked, and then select
Design Profile as the 3D Entity Profile Style.
▶
10.
Click OK, and then click a point to the right of the first profile view.
A new profile view is created that shows existing ground in red
and a profile of the feature line in black. Notice how the feature line
matches existing ground except for a certain length at either end
where it ties into the finished ground elevations (see Figure 18.9).
The 3D Entity options
weren't available the
first time you used the
Quick Profile command
because the red poly-
line you selected was
a 2D object.
FiGuRE 18.9
A quick profile view showing a
feature line and a surface profile
11.
Save and close the drawing.
You can view the results of successfully completing this exercise by opening
Using a Quick Profile - Complete.dwg
. Note that the “Complete” version
of the file isn't much different from the original, because quick profiles are
removed when the drawing is saved.
Calculating Earthwork volumes
Moving earth is one of the most expensive construction activities in a land
development project. For this reason, there are two important questions you'll
need to answer about nearly every grading design you do:
▶
How much earth must be moved?
▶
How much earth must be brought to or transported away from the
project site?
