ISO/IEC 18023-1:200x(E) — Table 6.248 DRM_Spatial_Index_Related_Geometry

Table 6.248 — DRM_Spatial_Index_Related_Geometry_Topology

Property

Description

Class

<DRM Spatial Index Related Geometry Topology>

Superclass

<DRM Geometry Topology Hierarchy>

Subclass

None.

Definition

An instance of this DRM class encodes a spatially indexed (tiled) organization of primitive <DRM Geometry Topology> objects.

Class diagram

Figure 6.296 — DRM_Spatial_Index_Related_Geometry_Topology

Inherited field elements

Field name	Range	Field data type
geometry_topology_level		Geometry_Topology_Level

Field elements

Field name	Range	Field data type
sparse ¹		Boolean
column_count		Integer_Positive
row_count		Integer_Positive
column_width ²		Long_Float
row_width ³		Long_Float
spacing_unit		Spatial_Index_Spacing_Unit

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)

None.

Composed of (two-way) (inherited)

None.

Composed of (two-way)

one <DRM Location> instance⁴
one or more <DRM Union Of Geometry Topology> instances, each with a <DRM Spatial Index Data> link object

Composed of (two-way metadata) (inherited)

None.

Composed of (two-way metadata)

None.

Component of (two-way) (inherited)

zero or more <DRM Aggregate Geometry> instances

Component of (two-way)

None.

Constraints

Clarifications

¹ If this value is FALSE, all column and row entries are present; otherwise one or more entries are not present.

² This is the length of a cell in the given unit along the X axis.

³ This is the length of a cell in the given unit along the Y axis.

⁴ This is the origin of the collection, which is the lower-left corner.

Example(s)

No Example supplied.