Support UTM coordinate format

[barbeau]

Summary:

Now that we have multiple coordinate formats set up in https://github.com/barbeau/gpstest/pull/344 it wouldn't be too difficult to add more formats (pending the work to actually do the conversion).

Mentioned in https://github.com/barbeau/gpstest/issues/242#issuecomment-448498280:

The three I named plus UTM in the format

32U 461344 5481745

that is, zone, quadrat (which implicitly contains north/south), a space, then the “right value” (longitudinal part), a space, then the “up value” (latitudinal part) are common.

I don’t know of any other globally common formats, and local formats like Gauß-Krüger or British Ordnance are being replaced by UTM (at least in civilian use, authorities and emergency services are following slowly though AFAIK).

Steps to reproduce:

Go to Settings->Coordinate formats

Expected behavior:

Provide UTM as an option

Observed behavior:

UTM isn't an option

[barbeau]

Another user request for UTM:

Can you provide the option of the Coordinate position in UTM WSG84 format

GeoTools is an option, although it would be nice if we could find a way to support without including the GeoTools library.

[barbeau]

Our options are to either load a library to do this conversion, or call a web service.

GeoTools is a possible library: https://gis.stackexchange.com/questions/151565/what-simple-and-light-java-library-to-use-for-wgs84-to-utm-conversion

GeographicLib is another option:

• https://geographiclib.sourceforge.io/
• https://geographiclib.sourceforge.io/html/other.html#java

Example web service: https://github.com/maptiler/epsg.io#api-for-trans

...but to call this in real-time would be intense, once-per-second for each device running GPSTest to convert as new positions are calculated.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. Please comment here if it is still valid so that we can reprioritize. Thank you!

[stale[bot]]

Closing this. Please reopen if you believe it should be addressed. Thank you for your contribution.

[barbeau]

PROJ may be another option for this - https://proj.org/about.html

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. Please comment here if it is still valid so that we can reprioritize. Thank you!

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. Please comment here if it is still valid so that we can reprioritize. Thank you!

[barbeau]

Not stale

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. Please comment here if it is still valid so that we can reprioritize. Thank you!

[barbeau]

Not stale