The SEDRIS Data Representation Model
APPENDIX A - Classes
Functional Association Data

Class Name: Functional Association Data

Superclass - <Base Association Data>

Subclasses

This DRM class is concrete and has no subclasses.

Definition

An instance of this DRM class specifies the semantic meaning of the association relationship with which it is bound.

Primary Page in DRM Diagram:

Secondary Pages in DRM Diagram:

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

Example

  1. Let O be a <Union Of Geometry Hierarchy> instance representing an overpass. O has:

    1. a <Classification Data> component with tag = ECC_OVERPASS
    2. a <Union Of Primitive Geometry> component S representing a bridge span within the overpass, where S has a <Classification Data> component with tag = ECC_BRIDGE_SPAN
    3. a <Geometry Model Instance> component P1 referencing M, with a <World Transformation> component placing P1 on the right side of S
    4. a <Geometry Model Instance> component P2 referencing M, with a <World Transformation> component placing P2 on the left side of S

    To indicate clearly the functional relationship between the bridge piers and the bridge span within O, the data provider also supplies the following relationships:

    1. an association from S to P1 through a <Functional Association Data> link object having meaning = SE_FNASSMNTYP_SUPPORTED_BY
    2. an association from S to P2 through a <Functional Association Data> link object having meaning = SE_FNASSMNTYP_SUPPORTED_BY
    3. an association from P1 to S through a <Functional Association Data> link object having meaning = SE_FNASSMNTYP_SUPPORTS
    4. an association from P2 to S through a <Functional Association Data> link object having meaning = SE_FNASSMNTYP_SUPPORTS

FAQs

No FAQs supplied.

Constraints

Inherited Field Elements

This class has no inherited field elements.

Field Elements

SE_Functional_Association_Meaning_Type meaning; 1

Notes

Fields Notes

meaning

The meaning field specifies the semantic meaning of the association relationship.


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Last updated: July 26, 2006 Copyright © 2006 SEDRIS