Table 6.240—DRM_RGB_Colour_Control_Link

Property

Description

Superclass

· <DRM Control Link>

Class

· <DRM RGB Colour Control Link>

Subclass

· none

Definition

This DRM class is the specialized <DRM Control Link> used to provide the connection between an ordered aggregation of <DRM Expression>s and the target fields of an <DRM RGB Colour>.

The red_expression_index field is a 1-based index into the ordered aggregation of <DRM Expression>s, and is used to select the specific <DRM Expression> that controls the value of the red field specified in <DRM RGB Colour>.

The green_expression_index field is a 1-based index into the ordered aggregation of <DRM Expression>s, and is used to select the specific <DRM Expression> that controls the value of the green field specified in <DRM RGB Colour>.

The blue_expression_index field is a 1-based index into the ordered aggregation of <DRM Expression>s, and is used to select the specific <DRM Expression> that controls the value of the blue field specified in <DRM RGB Colour>.

Example(s)

· A control link that specifies the value for the parameter green for different instances of a tree model.

Inherited field elements

field_name	range	Field_Data_Type
description^1		String

Field elements

field_name	range	Field_Data_Type
red_expression_index^2		Integer_Unsigned
green_expression_index^3		Integer_Unsigned
blue_expression_index^4		Integer_Unsigned

Associated to (one-way) (inherited)

· none

Associated to (one-way)

· none

Associated by (one-way) (inherited)

· none

Associated by (one-way)

· none

Associated with (two-way) (inherited)

· none

Associated with (two-way)

· none

Composed of (two-way) (inherited)

· one or more {ordered} <DRM Expression>s

Composed of (two-way)

· none

Composed of (two-way metadata) (inherited)

· none

Composed of (two-way metadata)

· none

Component of (two-way) (inherited)

· none

Component of (two-way)

· one or more <DRM RGB Colour>s

Constraints

· none

Notes

¹ A text description of what the <DRM Control Link> is for.

² Index of the expression whose value controls the red field of the affected <DRM RGB Colour>. If zero, the red field is not controlled.

³ Index of the expression whose value controls the green field of the affected <DRM RGB Colour>. If zero, the green field is not controlled.

⁴ index of the expression whose value controls the blue field of the affected <DRM RGB Colour>. If zero, the blue field is not controlled.

Class diagram

<DRM RGB Colour Control Link>