ISO/IEC 18023-1:200x(E) — Table 6.259 DRM_Strobing_Light

Table 6.259 — DRM_Strobing_Light_Behaviour

Property

Description

Class

Superclass

Subclass

Definition

An instance of this DRM class indicates that the attributed object appears to be a strobing light.

Class diagram

Inherited field elements

Field name	Range	Field data type
None

Field elements

Field name	Range	Field data type
period ¹		Long_Float
delay ²		Long_Float

Associated to (one-way) (inherited)

Associated to (one-way)

Associated by (one-way) (inherited)

Associated by (one-way)

Associated with (two-way) (inherited)

Associated with (two-way)

Composed of (two-way) (inherited)

Composed of (two-way metadata) (inherited)

Composed of (two-way metadata)

Component of (two-way) (inherited)

Component of (two-way)

Constraints

Clarifications

¹ This represents the total period of time (both on and off), and is specified in seconds.

² This is specified in seconds, and is better characterized as a pre-start; it allows a series of lights to appear asynchronous.

Example(s)

Consider a model of an airport, in which the data provider wishes to place a strobing light string along a runway. The light emitted is negligible at an ordinary viewing range, in terms of cast shadows and so on, so it is most efficient to represent it as follows.

Figure 6.312 — <DRM Strobing Light Behaviour> example

Since the <DRM Line>'s count is greater than zero, it does not appear to be solid; each of its <DRM Vertex> components is shown independently. The light_diameter in pixels is not applicable, and the light is visible at any distance since no extingishing range is specified. The runway lights will always be on, unless a <DRM Light Rendering Properties Control Link> is added. The lights strobe every 2 seconds.