Use case (end-user): View a map as a Picture-In-Picture media object

[Malvoz]

This issue is for discussion of the use case “View a map as a Picture-In-Picture media object”, its examples & list of required capabilities.

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• Spec: https://w3c.github.io/picture-in-picture/
• Explainer: https://github.com/w3c/picture-in-picture/blob/master/explainer.md

An interactive example of PIP can be found here:
https://googlechrome.github.io/samples/picture-in-picture/

In #105 (comment) @prushforth indicated this deserved its own issue, in which he also stated:

I believe it should be an objective to accommodate map-in-map in a couple of ways, although I admit I haven't read up on picture-in -picture and only know about it as an average or perhaps not quite up to average TV user.

I can see a popup or slide out containing the properties of a map feature containing a map. I could also see the use case for a location map linked to a parent map. Are these possible examples of map-in-map?

More generally, shouldn't it be possible to use the map as the rendering environment of any* HTML/SVG element, if the location of those elements can be managed with CSS? There are a few use cases in the latter scenario, I think.

• including maps, video etc, but excluding what doesn't make sense TBD.

[prushforth]

PIP for maps looks interesting, and I think the title is appropriate, because it is a distinct user interface mechanism that could be shared with video.

I think the use cases could be quite interesting, and possibly even stronger than for video.

I could see the PIP map being useful when reading information about a location while keeping an eye on the map especially if its centre was locked to the location of something moving (you/your device, a drone, etc).

Its at least distinct from a location map, popup/slide out map, etc.

[Malvoz]

@prushforth is describing the "picture-in-map" (or specifically a map in a parent map) use case:


Image credit: https://developer.here.com/api-explorer/rest/map-image/map-image-pip

While I was thinking about the PIP for web maps use case like so:

Image credit: @Malvoz's Photoshop skills 😄

These are separate use cases. The "picture-in-map" use case seems related or perhaps obsolete by one or both the use cases: "Access additional information about a point on the map" and "Display custom web content describing map features".

/cc @AmeliaBR