The SEDRIS Data Representation Model
APPENDIX A - Classes
Attribute Set Table

Class Name: Attribute Set Table

Superclass - <SEDRIS Abstract Base>

Subclasses

This DRM class is concrete and has no subclasses.

Definition

An instance of this DRM class is conceptually an ordered collection of <Attribute Set> instances, where the ordering is required to permit the contents of the <Attribute Set Table> to be referenced by other objects.

An <Attribute Set> instance within an <Attribute Set Table> is referenced by its ordinal position in the collection by means of <Attribute Set Index> instances, as specified in the definition of <Attribute Set Index>.

Primary Page in DRM Diagram:

Secondary Pages in DRM Diagram:

Example

  1. An <Attribute Set Table> specifying <Attribute Set> instances for normal, Out The Window (OTW) viewing.

  2. An <Attribute Set Table> specifying <Attribute Set> instances for viewing through Night Vision Goggles (NVG).

  3. An <Attribute Set Table> specifying <Attribute Set> instances for OTW viewing using an enhanced set of colours and textures.

  4. An <Attribute Set Table> that contains <Attribute Set> instances that all contain a <Colour> and two <Image Mapping Function> instances. This <Attribute Set Table> would have regular set to SE_TRUE.

FAQs

No FAQs supplied.

Constraints

Composed of (two-way)

Composed of (two-way metadata)

Component of (two-way)

Inherited Field Elements

This class has no inherited field elements.

Field Elements

SE_String table_usage; (notes)
SE_Boolean regular; (notes)

Notes

Fields Notes


table_usage

 This specifies the use for which the given <Attribute Set Table>
 instance is provided.

regular

 If regular = SE_TRUE, all <Attribute Set> components of the
 given <Attribute Set Table> instance contain the same number of
 objects, and these objects are of the same types. Otherwise
 <Attribute Set> instances in the table may contain very
 different sets of objects.

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Last updated: May 15, 2003 Copyright © 2003 SEDRIS™