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Table 5 Description of tables present in the database for the discovery of 3D city models as related to the 3D Metadata ADE

From: A metadata ADE for CityGML

Table

Description

Unique city model identifier

Master Table

Containing the unique city model identifier, the unique metadata identifier, the file names of both the city model and metadata, and the presence or absence of textures and materials

Primary key

ISO Categories

All of the categories as listed in ISO 19115-1:2014 - Table F.1

Primary key

Thematic Models

Presence or absence of each thematic model and the count of those features

Primary key

Thematic Model LoDs

The count by subClass and LoD for city features within a thematic model

Foreign key

Lineage

The source and process steps that track the lineage of a 3D city model

Foreign key

ADEs

Containing all of the categories associated with the ADEidentifier _MetadataHelperClass for every ADE present

Foreign key

Terrain

Containing counts by terrain representation types

Foreign key