Autodesk CIVIL3D - CIVILDESIGNCOMP 2007 SLM CD Tutorials Manual page 84

The boundary is added to the surface definition, and the surface display
in the drawing is clipped to the area that is defined by the new outer
boundary.
Hide the polyline and change the surface style
1 Click Home tab
_EG-BNDY layer, click
2 Select the surface. Right-click. Click Surface Properties.
3 In the Surface Properties dialog box, on the Information tab, for Surface
Style, select Contours 5' and 25' (Background). Click OK.
In the selected surface style, contours are displayed in muted colors at
broad intervals. This display allows the major surface features to remain
visible while you focus on other aspects of the site design.
72 | Chapter 5 Surfaces Tutorials
Layers panel Layer drop-down. Next to the
.