[QGIS-Developer] USNG Coordinate System

Randal Hale rjhale at northrivergeographic.com
Tue Jun 13 18:59:21 PDT 2017

If you dig a bit this thread comes up: http://osgeo-org.1560.x6.nabble.

Which the thread was from 2006 and the USNG was a bit new (from what I
can gather). 

There is some python code that converts USNG to Coordinates and
Coordinates to USNG-> http://pydoc.net/Python/geocamUtil/0.1/geocamUtil
.usng.usng/ (I've not used it but it's on the list)

It's MIT license - so I'm not sure how that would play with a plugin in
QGIS - but it might be a way to use the OSGB plugin below. 


-----Original Message-----

Date: Tue, 13 Jun 2017 21:01:50 -0400
Subject: Re: [QGIS-Developer] USNG Coordinate System
Cc: 'qgis-developer' <qgis-developer at lists.osgeo.org>
To: 'Martin Dobias' <wonder.sk at gmail.com>, 'Barry Rowlingson' <b.rowlin
gson at lancaster.ac.uk>
From: Joshua Quesenberry <engnfrc at gmail.com>

I guess the kind of support I'm looking for would be the ability to
create points using USNG coordinates, importing points from a file full
of USNG formatted coordinates, seeing coordinates listed in USNG format
in the window at the bottom of the window, saving in a shapefile, etc.
I didn't realize Shapefile's can't store USNG format, so I guess that's
does present issues...

USNG is now FEMA's standardized coordinate system, which includes
Search & Rescue, which I do a lot of. So imagine being in the middle of
an operation where USNG is being used... a team radios in the location
of a clue or a patient, the next step for the GIS person right now
would have to be converting  the USNG coordinate to either UTM or Lat
Lon, this all takes extra time and I haven't been able to find a good
offline coordinate converter. Ideally you switch the layer to edit
mode, navigate to the location, and click to add the point. If there
were an "Add Point" button that pops up a dialog where you enter a
USNG/UTM/LatLon coordinate would be a little better more. If I have a
list of points to add right now I usually just create a csv, import the
csv, and save as a shapefile.


Josh Q

-----Original Message-----
From: Martin Dobias [mailto:wonder.sk at gmail.com] 
Sent: Monday, June 12, 2017 5:43 AM
To: Barry Rowlingson <b.rowlingson at lancaster.ac.uk>
Cc: Joshua Quesenberry <engnfrc at gmail.com>; qgis-developer <qgis-develo
per at lists.osgeo.org>
Subject: Re: [QGIS-Developer] USNG Coordinate System

On Mon, Jun 12, 2017 at 10:13 AM, Barry Rowlingson <b.rowlingson at lancas
ter.ac.uk> wrote:
> Would that be useful to you? It could be implemented as a Qgis
> python 
> function - its some string parsing and numeric manipulation.

There are few plugins that add support for some coordinate systems -
for example this plugin translates between map coordinates and OSGB
Grid Ref (e.g. SX 7511 8607):

You could use that one as a reference for your translator. It could be
also a nice piece of functionality directly in QGIS where plugins could
register their converter and QGIS would handle all the GUI related
functionality (which plugins currently need to do themselves).


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Randal Hale 
rjhale at northrivergeographic.com
(423) 653-3611
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