Technical information

188 | Chapter 13 Viewing and Editing Roads in Section View
Use the Draw 3D Polylines From Point Codes command to create
3D polylines that connect all points that have the same point code along an
alignment.
Use the Draw Daylight 3D Polyline command to create a closed 3D polyline
that represents the locations where the road top surface matches into the
existing ground surface. The 3D polyline is created by connecting the cross
section catch points along the alignment.
You can also create a 3D grid of the roadway by selecting Cross
Sections
➤ 3D Grid. You can use the grid data in a surface by selecting it as
3D Faces.
Key Concepts
■ The surface data that is created when you use the Create Road Surface
command can be created as breaklines, a point file, or both. The surface
boundary is created by connecting the catch points along the alignment.
■ You can use the Draw 3D Polylines From Point Codes command in con-
junction with the Draw Daylight 3D Polyline command to create a surface
using the Terrain Model Explorer Define by Polyline command to define
the 3D polylines as breaklines. Use the polyline created by the Draw
Daylight 3D Polyline command to define the surface boundary.