Table 6.71 — DRM_Environment_Root
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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 the aggregating object for the <DRM Feature Hierarchy> and / or <DRM Geometry Hierarchy> that represent the instantiation of a collection of all data in a common spatial reference frame in a given transmittal. In other words, an <DRM Environment Root> is the starting point for all objects in the same spatial reference frame in a transmittal. |
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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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Clarifications |
1 These components are present only if they differ from the <DRM Base Time Data> of the given <DRM Environment Root> instance's <DRM Transmittal Root> aggregate. 2 The presence of these components depends on the <DRM Feature Hierarchy> and <DRM Geometry Hierarchy> components. See Hierarchy summary constraints for details. 3 If present, this provides access to all <DRM Variable> instances defined within the scope of the given <DRM Environment Root> instance, if any. If there are such <DRM Variable> instances, an <DRM Interface Template> shall be present; otherwise, it shall not be present. 4 This specifies the spatial extent of the given <DRM Environment Root> instance, defining the maximum spatial extents of the component objects. |
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Example(s) |
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