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Exercise 2: Adding Free Curves and Spirals to an
Alignment
In this exercise, you will add a free curve and a free spiral-curve-spiral to a
simple alignment.
The drawing contains a simple alignment consisting of three tangents. In the
next few steps, you will add free curves at circles B and C.
For more information, see the AutoCAD Civil 3D Help topics Adding Curves
and Adding Curves with SpiralsAdding Curves with Spirals.
This exercise continues from
Exercise 1: Creating an Alignment with the
Alignment Layout Tools
(page 214).
Add a free curve between two tangents
1
Open Align-2.dwg, which is located in the
tutorial drawings folder
(page
819)
.
2
Set your drawing window so that you can see circles B and C on the
surface.
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
Free Curve Fillet (Between Two Entities, Radius).
5
As prompted on the command line, click the tangent that enters circle
B from the left (the ‘first entity’).
6
Click the tangent that exits from circle B on the right (the ‘next entity’).
7
Press Enter to select the default value of a curve less than 180 degrees.
8
Enter a radius value of 200. The curve is drawn between the tangents as
specified.
Add a free spiral-curve-spiral between two tangents
1
In the Alignment Layout Tools toolbar, click the arrow next to
. Select
Free Spiral-Curve-Spiral (Between Two Entities).
Exercise 2: Adding Free Curves and Spirals to an Alignment | 217
Summary of Contents for AUTOCAD PLANT 3D 2011 - SYSTEM REQUIREMENTS
Page 1: ...AutoCAD Civil 3D 2011 Tutorials April 2010 ...
Page 58: ...46 ...
Page 70: ...58 ...
Page 73: ...Tutorial Creating and Adding Data to a Surface 61 ...
Page 140: ...128 ...
Page 378: ...7 Press Enter 366 Chapter 10 Parcels Tutorials ...
Page 385: ...8 Press Enter Exercise 2 Swinging One End of a Parcel Lot Line 373 ...
Page 432: ...420 ...
Page 470: ...458 ...
Page 506: ...494 Chapter 13 Corridors Tutorials ...
Page 580: ...568 ...
Page 668: ...656 ...
Page 678: ...23 Change your view to SW isometric 666 Chapter 18 Part Builder Tutorials ...
Page 679: ...24 Change your visual style to Conceptual Exercise 2 Defining the Manhole Geometry 667 ...
Page 706: ...694 Chapter 18 Part Builder Tutorials ...
Page 830: ...818 ...
Page 832: ...tutorial folder AutoCAD Civil 3D installation location Help Civil Tutorials 820 Glossary ...