In NX and other cad programs, solid bodies are created by adding, subtracting volumes from created body volume.
- None: It is used for creating a body.
- Unite: It is used for adding volume to a solid body.
- Subtract: It is used for subtracting volume from the body.
- Intersect: It is used for creating volume on the intersection of extruded volume and solid body.
Inferred: It decides which method (none, add, extract, and intersect) will use automatically due to drawing.