This tutorial demonstrates how to create a feature line and how to grade from the feature line.
You can create gradings from parcel lot lines or feature lines. A feature line is a linear object that the grading commands can recognize and use as a baseline. When designing a grading, you must often adjust the elevations along a feature line. You create a feature line by converting existing objects, such as lines or polylines.
In the next two exercises, you will perform the following tasks:
- Create three feature lines.
- Assign elevation values along the feature lines using several methods.
- Create a set of gradings from one of the feature lines.
For more information, see the AutoCAD Civil 3D Help topic Creating Grading.
Topics in this section
- Exercise 1: Creating Feature Lines
In this exercise, you will use two different methods to create feature lines.
- Exercise 2: Assigning Feature Line Elevations
In this exercise, you will assign elevations to the feature lines you created from AutoCAD lines in the previous exercise.
- Exercise 3: Creating a Grading
In this exercise, you will create a set of gradings, called a grading group, that form a runoff on the side of an embankment.