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GeoPacks are structured to have one or more levels of geographical data. When there are multiple levels, the data will be structured in a logical hierarchy. Each level of the hierarchy will contain Geographical Labels of different formats and a Geographical Field containing a WKT Point (and sometimes a Polygon). The pack will also have Demographic Metrics associated with the lowest level of the hierarchy which are automatically aggregated up depending on which hierarchy level you are using at the time.
Geographical Labels
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In order to identify the various levels of data in the pack, and link the pack to your own data, Geographical Labels are included and displayed in multiple formats.
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See GeoPack Linking for more information.
Geographical Fields
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Once a pack is linked, using Geographical Label fields, the Geographical Fields become available for reporting use. Each level of the pack hierarchy contains one Geographical Field. This field contains a centroid WKT Point, and may also contain WKT Polygons, depending on the pack design. The Geographical Field can be selected by a user and added to a map, and depending on the map type, Yellowfin will choose to use either the Point OR Polygon (where available).
See GeoPack Maps for more information.
Demographic Metrics
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Finally, the packs also contain Demographic Metrics. These are fields that explore various values associated with census demographics available in the geographic area.
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