Exercise 3: Adding Floating Curves To An Alignment - Autodesk CIVIL3D - CIVILDESIGNCOMP 2007 SLM CD Tutorials Manual

Exercise 3: Adding Floating Curves to an Alignment

In this exercise, you will add two floating curve entities to a simple alignment.
First, you will add a best fit floating curve that follows the most likely path
through a series of points. Then, you will add a floating reverse curve with
spirals.
The initial drawing shows a simple alignment consisting of three tangents
with curves. In the next few steps, you will add two floating curves to the end
of the alignment.
For more information, see the AutoCAD Civil 3D Help topic Adding Lines,
Curves, and Spirals to an Alignment.
This exercise continues from
Alignment
Add a floating curve by best fit to the alignment
NOTE This exercise uses Align-2.dwg with the modifications you made in the
previous exercise, or you can open Align-3.dwg from the
(page 819).
1 Pan and zoom until you can see circles D and E on the surface.
2 On the Home tab
C-POINTS row, click
A group of points is displayed. You will use these points as a basis for
creating a floating curve that follows the most likely path through the
points.
NOTE If the points do not appear, enter REGEN on the command line.
3 If the Alignment Layout Tools toolbar is not open, select the alignment.
Right-click and click Edit Alignment Geometry.
4 In the Alignment Layout Tools toolbar, click the drop-down list
Select
5 As prompted on the command line, click the tangent that ends in circle
D (the 'entity to attach to').
6 In the Curve By Best Fit dialog box, make sure that From COGO Points
is selected. Click OK.
Exercise 2: Adding Free Curves and Spirals to an
(page 217).
Layers panel, in the Layer Control list, in the
to turn on the C-POINTS layer.
Floating Curve - Best Fit.
Exercise 3: Adding Floating Curves to an Alignment | 219
tutorial drawings folder
.