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The SEDRIS Data Representation Model
APPENDIX A - Classes RGB Colour Control Link |
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An instance of this DRM class is a specialized <Control Link> instance used to provide the connection between an ordered aggregation of <Expression> instances and the target fields of one or more <RGB Colour> instances.
See the example for <CMY Colour Control Link>, which is analogous to how this class is used.
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| SE_String | description; | (notes) |
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| SE_Integer_Unsigned | red_expr_index; | (notes) |
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| SE_Integer_Unsigned | green_expr_index; | (notes) |
| SE_Integer_Unsigned | blue_expr_index; | (notes) |
The description field specifies a text description of the given <Control Link> instance's purpose.
The red_expr_index field is a 1-based index into the ordered aggregation of <Expression> instances, and is used to select the specific <Expression> instance (if any) that controls the target <RGB Colour> instances' rgb_data.red field values. If the value is zero, the rgb_data.red field of those instances is not controlled.
The green_expr_index field is a 1-based index into the ordered aggregation of <Expression> instances, and is used to select the specific <Expression> instance (if any) that controls the target <RGB Colour> instances' rgb_data.green field values. If the value is zero, the rgb_data.green field of those instances is not controlled.
The blue_expr_index field is a 1-based index into the ordered aggregation of <Expression> instances, and is used to select the specific <Expression> instance (if any) that controls the target <RGB Colour> instances' rgb_data.blue field values. If the value is zero, the rgb_data.blue field of those instances is not controlled.
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