Class Name: Geometry Perimeter Data

Superclass - Base Perimeter Data

Definition

The geometry-specific sub-class of Base Perimeter Data, which describes the outline of a region that is used for spatial indexing of Geometry Hierarchies. Used to distinguish sibling Geometry Hierarchy entries within a Perimeter Related Geometry aggregation.

Primary Page in DRM Diagram:

• 9

Secondary Pages in DRM Diagram:

• 4

Example

1. The spatial extent of a thematic coverage might be divided up into a collection of irregularly shaped tiles representing different countries, such that the Geometries located within each tile are organized into a separate Geometry Hierarchy.
2. See also Perimeter Related Geometry.

FAQs

How does the ordered list of Locations define the perimeter?

Just "connect the dots" from the first Location to the last Location, with an implicit line connecting the last Location back to the first Location.

What is the purpose of this class?

This class allows Geometry Hierarchies to be organized into spatial indexing regions of any shape.

Constraints

• Non Self Overlapping Perimeter Data Locations

Composed of (one-way)(inherited)

• an unbounded set of {ordered} Locations[3...]