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

Class Name: Property 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 <Property Set> instances, where the ordering is required to permit the contents of the <Property Set Table> instance to be referenced by other objects.

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

Primary Page in DRM Diagram:

Secondary Pages in DRM Diagram:

This class appears on only one page of the DRM class diagram.

Example

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

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

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

  4. A <Property Set Table> that contains <Property Set> instances that all contain a <Colour> and two <Image Mapping Function> instances. This <Property 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

 The table_usage field specifies the use for which the given
 <Property Set Table> instance is provided.

regular

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

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Last updated: July 16, 2004 Copyright © 2004 SEDRIS