Table 6.290 — DRM_Union_Of_Features
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Property |
Description |
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Class |
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Superclass |
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Subclass |
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Definition |
An instance of this DRM class is an <DRM Aggregate Feature> instance containing an arbitrary collection of <DRM Feature Representation> instances. The union_reason field specifies the reason why the given instance of <DRM Union Of Features> was created to organize its components. The ordering_reason field specifies whether the ordering of the component <DRM Feature Representation> instances of the given <DRM Union Of Features> instance is semantically significant, and if so, what that significance is. |
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Clarifications |
1 An association between two <DRM Feature Representation> instances indicates that the environmental object(s) that they represent have the semantic relationship indicated by the <DRM Base Association Data> instance on the association relationship. 2 An association between a <DRM Geometry Hierarchy> instance and a <DRM Feature Representation> instance indicates that the environmental object(s) that they represent have the semantic relationship indicated by the <DRM Base Association Data> instance on the association relationship. 3 An association between a <DRM Property Grid> instance and a <DRM Feature Representation> instance indicates that the environmental object(s) represented by the <DRM Feature Representation> instance and the <DRM Property Grid> instance (or some specific cell data within that <DRM Property Grid> instance) have the semantic relationship indicated by the <DRM Base Association Data> instance on the association relationship. Each associated <DRM Property Grid> instance will indicate whether the entire <DRM Property Grid> instance or only some specific cell data within it is participating in the relationship in question. 4 An association between two <DRM Feature Representation> instances indicates that the environmental object(s) that they represent have the semantic relationship indicated by the <DRM Base Association Data> instance on the association relationship. 5 An association between a <DRM Geometry Hierarchy> instance and a <DRM Feature Representation> instance indicates that the environmental object(s) that they represent have the semantic relationship indicated by the <DRM Base Association Data> instance on the association relationship. 6 An association between a <DRM Property Grid> instance and a <DRM Feature Representation> instance indicates that the environmental object(s) represented by the <DRM Feature Representation> instance and the <DRM Property Grid> instance (or some specific cell data within that <DRM Property Grid> instance) have the semantic relationship indicated by the <DRM Base Association Data> instance on the association relationship. Each associated <DRM Property Grid> instance will indicate whether the entire <DRM Property Grid> instance or only some specific cell data within it is participating in the relationship in question. 7 This relationship exists to support attributes for derived objects. That is, these components are used only to specify texture mapping information for geometry that is to be derived from the <DRM Aggregate Feature> instance by the consumer. These <DRM Image Mapping Function> instances shall use <DRM Image Anchor> components to specify the mapping. 8 This is needed for cases in which an <DRM Aggregate Feature> instance is significant only for a particular domain, such as radar. |
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Class diagram |
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Inherited field elements |
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Field elements |
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Associated to (one-way) (inherited) |
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Associated to (one-way) |
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Associated by (one-way) (inherited) |
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Associated by (one-way) |
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Associated with (two-way) (inherited) |
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Associated with (two-way) |
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Composed of (two-way) (inherited) |
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Composed of (two-way) |
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Composed of (two-way metadata) (inherited) |
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Composed of (two-way metadata) |
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Component of (two-way) (inherited) |
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Component of (two-way) |
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Constraints |
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Example(s) |
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