Table 6.103—DRM_Feature_Topology
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Property |
Description |
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Superclass |
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Class |
· <DRM Feature Topology> |
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Subclass |
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Definition |
This is an abstract DRM class that specifies the objects that define both the geometric (i.e., location, shape) and topological (i.e., adjacency) aspects of <DRM Feature>s, including <DRM Feature Node>s, <DRM Feature Edge>s, and <DRM Feature Face>s. A topological surface consists of a collection of <DRM Feature Topology> objects related to one another through a variety of topological relationships. |
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Example(s) |
· In a collection of representing a transportation network, the <DRM Feature Face>s representing built-up areas, airfields, railroad yards, and parking lots, the <DRM Feature Edge>s representing their boundaries for such things as roads, railroads, and runways, and the <DRM Feature Node>s representing such things as road intersections and railroad crossings. |
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Inherited field elements |
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Field elements |
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Associated to (one-way) (inherited) |
· none |
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Associated to (one-way) |
· none |
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Associated by (one-way) (inherited) |
· none |
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Associated by (one-way) |
· none |
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Associated with (two-way) (inherited) |
· none |
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Associated with (two-way) |
· none |
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Composed of (two-way) (inherited) |
· none |
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Composed of (two-way) |
· zero or one <DRM Feature ID> · zero or more <DRM Property Value>s |
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Composed of (two-way metadata) (inherited) |
· none |
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Composed of (two-way metadata) |
· none |
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Component of (two-way) (inherited) |
· none |
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Component of (two-way) |
· zero or more <DRM Union Of Feature Topology>s |
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Constraints |
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Notes |
none |
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Class diagram |