Use Case: Provide alternative map layers which the user can select

[NickFitz]

This issue is for discussion of the use case "Provide alternative map layers which the user can select".

[prushforth]

MapML proposal

[NickFitz]

This idea originally arose from considerations such as a visually impaired user wishing to select a high contrast map, but it seems that this is more appropriate to issue #82, as the style in question would be an attribute of the selected layer, assuming "layer" is the most suitable term.

[AmeliaBR]

At the use case level, we can talk about this as a "map" feature: the user wants to select dark mode or high contrast mode, or so on. On a capability level, this would probably need to be implemented for each layer independently.

[AmeliaBR]

After the merger of use cases, this issue/use case is specifically about selecting map styles that involve switching map sources: e.g., switching from street map to satellite photos, or from dark mode to light mode or high contrast tiles.

It's listed as an authoring use case, since the author needs to provide the different map options (if it's not part of the default map for a given framework).

[shepazu]

Perhaps we should clarify in the wording that this is about changing the basemap layer, as opposed to selecting other overlay layers.

[shepazu]

Is it in scope for this use case that you might select a basemap layer from different providers (e.g. change from OSM to Google Maps)?