The traditional AutoCAD Hatch command provides a “background color” option. Assigning background colors to hatch is a great way to define multiple variations from a single pattern. However, background colors are not allowed when the hatch is applied through a Civil 3D style.
In today’s installment, we’ll explore a workflow that simulates a background color when hatching Civil 3D corridors. The example shown references brick pavers, but this technique can apply to any component of any linear design modeled using a corridor. If you are interested, I've created a quick video below that walks through everything...
Note: If this is your first experience hatching corridors, you may be interested in this video as well.
Hatching Civil 3D Corridor Models using a Code Set Style
https://youtu.be/mFW2PtQqbdQ
-Jeff