mini-widget: display a location

[ES-Alexander]

Problem to solve

Sometimes it's useful to track/record the numerical values of a location, rather than just visualising its position on a map, and sometimes locations are not geo-referenced. Currently this is awkward to do, because it requires multiple separate mini-widgets and the data may not be in the desired display format (e.g. see #1326).

Desired approach

A mini-widget with support for

1. any valid sources of location data
   • MAVLink / NMEA / etc
   • vehicle location, control station location, etc
2. common display formats
   • latitude, longitude
   • UTM
   • local x, y [,z] (probably with support for metric vs imperial)
3. position validity/accuracy
   • colour or opacity could potentially be used to indicate when a position estimate is uncertain, or older than a threshold time

Additional context

• Lat, Lng Issue as part of a broader VGI discussion
• UTM request and discussion

Prerequisites

• [X] I have checked to make sure that a similar request has not already been filed or fixed.

[patrickelectric]

I would add GPS position estimation as well, like BlueOS GPS widget.

[vshie]

Having a button to mark/save a given position, give it a label, could be super handy for both ROV and Boat...

[ES-Alexander]

@vshie this issue is focused around a display widget - adding a button for location tagging/annotation/logging functionality seems more relevant to #84 / #594, although you could also suggest it as its own widget :-)

[vshie]

Ah, good point, my apologies!

[ES-Alexander]

No worries - just don't want your good idea to get lost in the weeds! :-)