Creating collection relationships
In peer-to-peer relationships, no feature's existence is dependent on another. Collections are considered a type of peer-to-peer relationship and can be grouped into two different object classes: aggregations (C_AGGR) or associations (C_ASSO).
Association objects (C_ASSO) depict at least one feature that, when associated, better represents certain navigational situations. For example, a buoy that marks a wreck can be associated in S-57 to help the mariner see that a danger lies in the area. The buoy is not dependent on the wreck nor is the wreck dependent on the buoy.
Aggregation objects (C_AGGR) are collections of features that form a higher-level collection object that better describes a system or defines a larger area. For example, an aggregation relationship can be used to form a traffic separation scheme from traffic separation lane parts, boundaries, and so forth. In the geodatabase, the collection object is stored in the PLTS_COLLECTIONS table, and its relationships to the features that make up the collection are stored in the PLTS_FREL table.
- Start ArcMap.Sugerencia:
If the ArcMap - Getting Started dialog box appears, you can open a new or existing map document. You can also check the Do not show this dialog box in the future check box and click Open.
- On the main menu, click Customize > Toolbars > Production Editing.
- On the main menu, click Customize > Toolbars > Nautical.
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Click the Production Start Editing button on the Production Editing toolbar.
Nota:
The Manage Features and Create Attributes, Update Attributes, or Metadata Attributes windows automatically appear when you start an edit session using the Production Start Editing tool.
Sugerencia:If the Create Attributes, Update Attributes, or Metadata Attributes window does not appear when you start an edit session, click the Show/Hide Attributes button on the Manage Features window.
- Select features from which to create one relationship.
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Click the Relationship Manager button on the Nautical toolbar.
The Relationship Manager window appears.
- Right-click Collection(s) in the tree view and click Create.
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Choose the collection type.
- Click OK.
The new collection relationship appears in the tree view of the Relationship Manager window.