[ArcheOS] R: GPS track to polygon

[albertocosner@libero.it]

Why not a simple convex hull?, v.hull in grass (http://grass.osgeo.
org/grass64/manuals/v.hull.html)
In my experience, when you survey something, is easier to record gps data in 
one direction not in circles... (the direction and the extent of the surveyed 
area was planned before), then is better record point data with different 
attributes instead of track with attribute.

ciao
a

>----Messaggio originale----
>Da: dncgst@gnewarchaeology.it
>Data: 17/04/2014 2.03
>A: "ArcheOS user"<archeos@lists.linux.it>
>Ogg: [ArcheOS] GPS track to polygon
>
>Hi all,
>
>now I'm quite confused and I'm not sure if this is the right list, but I
>would like to present an archaeological/methodological problem that is
>not related to a development issue.
>
>In few weeks I will leave the office for my first survey season and I'm
>trying to change something in the methodology adopted in the past by the
>project.
>
>I've first created a spatial database to collect data from the survey,
>and I'm now thinking about the workflow in the management of GPS data.
>
>To be brief, we define a survey unit an area with unique geological and
>macro-sedimentological characteristics. I want to import in the database
>the polygon geometry of the survey unit, and I want to do in the table
>of attributes of the SU.
>
>We use an handheld GPS (GARMIN GPSmap62). A walk around the SU tracks
>the bounding box of the SU.
>
>How to transform the GPS track in a polygon?
>
>I tried this workflow, but I'm sure that you can improve it.
>
>http://www.wiki.gnewarchaeology.it/w/GPS_2D_polygons
>
>Suggestions and critics are welcome!
>
>Thanks,
>
>-- 
>Domenico Giusti <dncgst@gnewarchaeology.it>
>GPG keyID: 2048R/A3AB7054F6E5D778
>
>-- 
>Mailing list info: http://lists.linux.it/listinfo/archeos
>