ISO/IEC 18023-1:200x(E) — Table 6.179 DRM

Table 6.179 — DRM_Polyhedron

Property

Description

Class

<DRM Polyhedron>

Superclass

<DRM Volume Geometry>

Subclass

None.

Definition

An instance of this DRM class is a <DRM Volume Geometry> that encloses a bounded region of three-dimensional space, such as a building or a room within a building.

Class diagram

Figure 6.205 — DRM_Polyhedron

Inherited field elements

Field name	Range	Field data type
None

Field elements

Field name	Range	Field data type
None

Associated to (one-way) (inherited)

None.

Associated to (one-way)

None.

Associated by (one-way) (inherited)

None.

Associated by (one-way)

None.

Associated with (two-way) (inherited)

None.

Associated with (two-way)

one <DRM Geometry Volume> instance

Composed of (two-way) (inherited)

zero or one <DRM Classification Data> instance
zero or more {ordered} <DRM Property Set Index> instances
zero or more <DRM Property Table> instances
zero or more <DRM Property Table Reference> instances
zero or more <DRM Property Value> instances
zero or more <DRM Colour> instances
zero or more {ordered} <DRM Image Mapping Function> instances
zero or one <DRM Light Rendering Properties> instance
zero or one <DRM Presentation Domain> instance
zero or one <DRM Rendering Priority Level> instance
zero or one <DRM Rendering Properties> instance
zero or more <DRM Tack Point> instances
zero or one <DRM Union Of Primitive Geometry> instance¹

Composed of (two-way)

4 or more <DRM Polygon> instances

Composed of (two-way metadata) (inherited)

zero or one <DRM Time Constraints Data> instance

Composed of (two-way metadata)

None.

Component of (two-way) (inherited)

one or more <DRM Union Of Primitive Geometry> instances

Component of (two-way)

None.

Constraints

Clarifications

¹ A <DRM Primitive Geometry> contains a <DRM Union Of Primitive Geometry> instance as a component only when that <DRM Primitive Geometry> can be decomposed into nested <DRM Primitive Geometry>, as (for example) a <DRM Polygon> can be decomposed into subfaces.

Example(s)

Consider a <DRM Polyhedron> representing a building. It has a collection of component <DRM Polygon>s, which defines its shape; an associated <DRM Geometry Volume>, which defines its topological relationships; a <DRM Classification Data> component that classifies it as an ECC_BUILDING; <DRM Property Value> components that describe its characteristics, such as material composition, and a <DRM Label> that identifies it as “The Empire State Building”.