The SEDRIS Data Representation Model
APPENDIX A - Classes
Symbol

Class Name: Symbol

Superclass - <Icon>

Subclasses

This DRM class is concrete and has no subclasses.

Definition

An instance of this DRM class specifies a pictograph with a location and is used to identify objects on 2D maps or displays.

Primary Page in DRM Diagram:

Secondary Pages in DRM Diagram:

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

Example

  1. Standard symbology for a golf course and an appropriate place to draw that symbol on a map are represented by a <Symbol> instance.

  2. On a representation of an operational chart, the tactical overlays are comprised of <Symbol> instances representing the unit and control points.

FAQs

No FAQs supplied.

Constraints

Composed of (two-way)

Composed of (two-way metadata)

Component of (two-way) (inherited)

Component of (two-way)

Inherited Field Elements

This class has no inherited field elements.

Field Elements

SE_String name; (notes)
SE_Symbol_Format symbol_format; (notes)
SE_URN symbol_urn; (notes)

Notes

Composed of Notes


Description

If provided, the <Description> component may be used to provide a more detailed description than that specified by the name field.


Lineage

If provided, the <Lineage> component specifies either information about the events and/or source data used in constructing the <Symbol> instance or lack of knowledge about lineage.

Fields Notes

name

The name field specifies a meaningful short name.

symbol_format

The symbol_format field specifies the symbol format of the resource (see ).

symbol_urn

The symbol_urn field specifies a SEDRIS symbol URN (see SE_URN).

Prev: Surface Geometry. Next: Symbol Library. Up:Index.

Last updated: August 23, 2005 Copyright © 2005 SEDRIS™