Planeused

Planeused is a neologism encountered in discussions of geometry, computer-aided design (CAD), and 3D visualization to denote the state or role of a geometric plane within a model or computation. Unlike the standard term plane, planeused emphasizes whether a given plane is actively employed in a calculation, rendering, or projection.

Origin and usage

The term appears primarily in online forums, developer blogs, and some CAD documentation as informal shorthand. It has no formal specification in widely recognized geometry or CAD standards, so its exact meaning depends on context. Typically it refers to a boolean flag or status indicating active usage.

Definitions

- In computational geometry and CAD, planeused may refer to a plane object that is flagged as used for a particular operation, such as the plane of projection, a constraint plane, or a clipping plane. Systems may store a plane’s attributes along with a planeused flag to optimize calculations or rendering.

- In data visualization or 3D graphics pipelines, planeused can indicate that certain planes are used to slice, project, or constrain geometry, with unused planes ignored to improve performance.

- In documentation or code, planeused is sometimes used as a variable name or property (for example, planeUsed or isPlaneUsed) to reflect its role.

Relation and distinction

planeused is not a synonym for plane. It is a descriptor of usage status within a larger data model or computational workflow.

See also: plane (geometry), reference plane, clipping plane, projection plane, CAD terminology, computational geometry.