Autodesk CIVIL3D - CIVILDESIGNCOMP 2007 SLM CD Tutorials Manual page 423

Create infill gradings
NOTE This exercise uses Grading-6.dwg with the modifications you made in the
previous exercise.
1 On the Grading Creation Tools toolbar, from the Select A Grading Criteria
list, select Grade To Distance.
NOTE Although an infill has no criteria, you select its grading style from an
existing criteria.
2 Click Expand The Toolbar.
3 From the Style list, select Shoulder.
This setting specifies the grading style to apply to the infill.
4 Click Create Infill.
5 Click in the area between the building footprint and the offset feature
line (near the right side of the ramp).
A diamond is displayed in that area, indicating that an infill has been
created. In the left viewport, notice that the infill grading fills the entire
area between the two blue feature lines.
6 On the Grading Creation Tools toolbar, from the Style list, select Pad.
7 Click inside the building footprint to create an infill using the Pad grading
style.
8 Press Enter to end the command.
In the left viewport, the gray area is the infill grading that represents the
shoulder. The gold area is the building pad infill grading. The green and
red areas are the grade-to-surface slope grading.
Exercise 3: Filling Holes in a Grading | 411