Table 6.128 — DRM_Light_Rendering_Properties_Control_Link

Property

Description

Class

  • <DRM Light Rendering Properties Control Link>

Superclass

Subclass

  • None.

Definition

An instance of this DRM class is a specialized <DRM Control Link> instance providing the connection between one or more <DRM Light Rendering Properties> instances and the <DRM Expression> instances that are used to determine whether the target <DRM Light Rendering Properties> instances are active and/or their candela_value field values are varying.

The active_expression_index field specifies which <DRM Expression> component, if any, specifies the active_light_value of the target <DRM Light Rendering Properties> instances. If active_expression_index is zero (0), the active_light_value field values of the target instances are not controlled. Otherwise, the value is a one-based index into the ordered aggregation of <DRM Expression> instances.

The candela_value_expression_index field specifies which <DRM Expression> component, if any, specifies the candela_value of the target <DRM Light Rendering Properties> instances. If candela_value_expression_index is zero (0), the candela_value field values of the target instances are not controlled. Otherwise, the value is a one-based index into the ordered aggregation of <DRM Expression> instances.

The lower_candela_value_expression_index field specifies which <DRM Expression> component, if any, specifies the lower limit of the candela_value of the target <DRM Light Rendering Properties> instances. If lower_candela_value_expression_index is zero (0), no lower limit is specified. Otherwise, the value is a one-based index into the ordered aggregation of <DRM Expression> instances.

NOTE 1  If candela_value_expression_index is zero, the candela_value field values of the target instances are not controlled, so the lower_candela_value_expression_index value is also zero.

The upper_candela_value_expression_index field specifies which <DRM Expression> component, if any, specifies the upper limit of the candela_value of the target <DRM Light Rendering Properties> instances. If upper_candela_value_expression_index is zero (0), no upper limit is specified. Otherwise, the value is a one-based index into the ordered aggregation of <DRM Expression> instances.

NOTE 2  If candela_value_expression_index is zero, the candela_value field values of the target instances are not controlled, so the upper_candela_value_expression_index value is also zero.

Class diagram

Figure 6.153 — DRM_Light_Rendering_Properties_Control_Link

Inherited field elements

Field name

Range

Field data type

description

 

String

Field elements

Field name

Range

Field data type

active_expression_index

 

Integer_Unsigned

candela_value_expression_index

 

Integer_Unsigned

lower_candela_value_expression_index

 

Integer_Unsigned

upper_candela_value_expression_index

 

Integer_Unsigned

Default field values

Default field values for DRM_Light_Rendering_Properties_Control_Link

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)

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)

Constraints

Clarifications

None.

Example(s)