Field paper overlay

[dalekunce]

Would be really nice to overlay the field paper tasks on top of the map. This is a hugely needed piece based on field trials. Layer should be toggle blend. Would also like to extend this to include an arrow with direction to where the user should be editing.

[hallahan]

I'm thinking this would be quite straightforward actually. @mojodna could make a Field Papers endpoint that lets us download MBTiles. I could build in an MBTile downloader in the app and pop that in as a layer.

[mojodna]

MBTiles export would be a useful feature in its own right.

@hallahan potentially simplifying, would a single GeoTIFF be sufficient (since that's what would be tiled into the MBTiles archive)?

Obvs. working with MBTiles in the Mapbox Android SDK is straightforward, but perhaps you have some other tricks up your sleeve?

[hallahan]

Mapbox Android SDK does not support this. I agree GeoTIFF makes more sense.

[mojodna]

There (should) already be a link to the GeoTIFF, but it's probably directly to the random filename, so I'll make sure there's also predictable one given an atlas id (which you can pick up from the QR code using zxing).

[hallahan]

Since we're going to have to stick with this old mapping lib for the scope of the current phase, I'm thinking I can make a custom line rendering class similar to how I do OSM lines. I can read the vertices from the field paper map.geojson and draw that on the map. Instead of doing label placement, I can have a bit of text in the UI showing which field paper the map center is panned to. Probably a better UX anyway, since a statically placed label won't always be viewable.

[hallahan]

I'm going to whack on this feature next so we can actually see some field papers integration. Seeing the bounds of a page will really make things clearer for the user.