[openstreetmap/openstreetmap-website] Geographical heatmap of user contributions on user profile (Issue #6845)

[Minh Nguyễn]

1ec5 left a comment (openstreetmap/openstreetmap-website#6845)

As with the existing heatmap, any such map would need to have a privacy setting. The LWG determined in https://github.com/openstreetmap/openstreetmap-website/issues/5804#issuecomment-3638311030 that the calendar view doesn’t technically present a heightened privacy risk to most users compared to the linear changeset history. One would assume that to be the case with a map as well, since we already have one when clicking on Edits. After all, bboxes aren’t inherently more private than colorful blobs.

That said, I would be concerned about scaring away new users with a map that automatically zooms in and highlights the location of their first cluster of edits. Maybe the map should only show after a minimum number of changesets, to give the user some time to expand their horizons. Also consider whether we can limit the map to a lower zoom level to achieve the same goal.

> With the switch to Maplibre, this would already be one of the integrated features

How would we source the data for the heatmap layer? Would the site need to index the user’s changesets by quadtree?

> Additional consideration should be paid to the localisation to not have a "heatmap" next to a "heatmap" while being completely different things.

The existing feature’s name is a bit confusing. Laypeople often associate the term “heatmap” with a geographical heatmap as opposed to a temporal heatmap. We had to [clarify](https://translatewiki.net/wiki/Osm:Profiles.profile_sections.navigation.heatmap/qqq) this with translators too. A more functional name like “activity trend” would probably serve us better.

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