Civil 3D Grading

Use this skill when working with grading objects - creating grading groups, defining grading criteria, projecting feature lines to surfaces or elevations, computing daylight lines, and calculating grading volumes.

Grading Object Model

Site
├── GradingGroup              - Container for related grading objects
│   ├── Grading               - Single grading projection from a footprint
│   └── Surface (automatic)   - TIN surface generated from grading objects
└── FeatureLine               - 3D polyline used as grading footprint

A Grading projects outward (or inward) from a FeatureLine footprint toward a target (surface, distance, elevation, or relative elevation) using a slope defined in a GradingCriteria. Gradings are organized into GradingGroups, which can automatically generate a TIN surface.

Namespace References