Autodesk CIVIL3D - CIVILDESIGNCOMP 2007 SLM CD Tutorials Manual page 312

Draw profile tangents
NOTE This exercise uses Profile-4A.dwg with the modifications you made in the
previous exercise.
1 On the Profile Layout Tools toolbar, ensure that Draw Tangents
selected.
2 In the profile view, snap to the center of each of the circles that are labeled
A through E.
3 After you click in Circle E, right-click to end the profile.
The layout profile consists of tangents connected at points of vertical
intersection (PVIs). Next, you will add curves at each PVI.
NOTE For information about using object snaps, see the
Functionality tutorial
Add a free curve that exceeds the design standards
1 On the Profile Layout Tools toolbar, click the arrow next to
Free Vertical Curve (Parameter).
2 On the profile view, click the tangent that enters Circle B on the left (the
"first entity").
3 Click the tangent that exits Circle B on the right (the "next entity").
On the command line, notice that you can select the parameter that you
want to use to define the curve. The displayed value for the selected
parameter is the minimum value that will meet the minimum K value
that is required by the design criteria file. For this exercise, you will enter
values that do not meet the design criteria, and then examine the results.
4 On the command line, enter R to specify a curve radius. Enter a radius
of 500.
The curve is drawn between the tangents, and a
is displayed. You will learn how to diagnose and correct the violations
in Exercise 3: Viewing and Correcting Profile Design Criteria Violations
(page 301).
5 Repeat steps 2 to 4 to add an identical curve to the PVI in Circle C.
300 | Chapter 9 Profiles Tutorials
(page 15).
is
Using Basic
. Select
warning symbol