Rule Name: Oct Tree Spatial Domain

Definition

The optional Spatial Domain component of Geometry Hierarchy is mandatory for Oct Tree Related Geometry, and for its component Geometry Hierarchies.

The optional Spatial Domain component of Feature Hierarchy is mandatory for Oct Tree Related Features, and for its component Feature Hierarchies.

Rationale

The Spatial Domains must be present, so that a producer is forced to define the bounding area that the Oct Tree Related Geometry's (or Oct Tree Related Features') components occupy.

Example

FAQs

Why specify the Spatial Domain for each branch of the Oct Tree? Aren't the octants of equal size?

'Size' is not invariant under coordinate transformation.