Symbol

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

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

<<Publishable Object>>

Composed of (two-way)

zero or one <Classification Data> instance
zero or one <Lineage> instance¹

Composed of (two-way metadata)

zero or one <Identification> instance²

Component of (two-way) (inherited)

zero or more <Label> instances

Component of (two-way)

one <Symbol Library> instance

Inherited Field Elements

This class has no inherited field elements.

Field Elements

SE_String	name;	³
SE_Symbol_Format	symbol_format;	⁴
SE_URN	symbol_urn;	⁵

Notes

Composed of Notes

Identification

If provided, the <Identification> 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 C.4 Symbol_Format references).

symbol_urn

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

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Last updated: June 24, 2007