The SEDRIS Data Representation Model
APPENDIX A - Classes
Translucency Control Link

Class Name: Translucency Control Link

Superclass - <Control Link>

Subclasses

This DRM class is concrete and has no subclasses.

Definition

An instance of this DRM class is a specialized <Control Link> used to provide the connection between an ordered list of <Expression> instances and the target translucency_value field of a <Translucency> instance.

The expr_index field is a 1-based index into the ordered aggregation of <Expressions>, and is used to select the specific <Expression> that defines <Translucency>'s translucency_value field.

Primary Page in DRM Diagram:

Secondary Pages in DRM Diagram:

Example

  1. Puddles can be faded in based on the precipitation rate.

FAQs

No FAQs supplied.

Constraints

Composed of (two-way) (inherited)

Component of (two-way)

Inherited Field Elements

SE_String description; (notes)

Field Elements

SE_Integer_Positive expr_index; (notes)

Notes

Fields Notes


description

 The description field specifies a text description of the given
 <Control Link> instance's purpose.

expr_index

 This value specifies which <Expression> component controls the
 translucency_value of the affected <Translucency> instance(s).

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Last updated: July 16, 2004 Copyright © 2004 SEDRIS