Feature request: add mapping support for item sets

[flamsens]

The Omeka S Mapping module currently supports adding geolocation data to items. It does not extend to item sets, limiting the module's utility for representing geographically-organized collections.

In the Ghent Mapped project, we model places/locations as item sets. We use the DataTypeGeometry module to add geo information to a location. We ingest media (image uploads, exiting IIIF manifests) as items and assign them to one or more locations (item sets). Some images depict multiple locations (street, squary, historical building).

For us, the geo data of the items is not that important. What matters is the geo information of the locations.

I could remodel our data set to use items only, but the item set interface is way better to organize thousands of items.

Therefor, it would be nice if (some of) the Mapping features could be extended to item sets:

• Add geo data to item sets
• Browse item sets on a map

Thanks!

[jimsafley]

As of v2.1.0 there's a "Map by groups" page block where you can group by item sets you select. For each item set, the map will display a polygon representing all georeferenced items in the item set. Clicking on the polygon will display all of those items on the map.