[Gvsig_english] transfer GPS-data, “gpx”-format, to gvSIG

[Jorge Gaspar Sanz Salinas]

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El mié 26 sep 2012 14:38:31 CEST, Klaus Schaefer escribió:
> Dear gvSIG-friends,
> 
> many of you work with GPS devices to map network and customer data
> for water scheme documentation (cadastre), project layout, design
> and other planning activities. Many of you, as well, use a GIS
> application to visualize and analyze the respective data and/or
> combine it with customer data, district data, billing data and
> other sources of data.
> 
> Different GPS-devices work with different interfaces to transfer
> data to a GIS. Many of you work with Garmin GPS devices, mostly of
> Dakota and Oregon types. I have now compiled a small workflow and
> process description on how to get GPS data into a GIS using the raw
> “gpx” files that are provided by these devices. Other GPS devices,
> like “Garmin eTrex”, “Trimble” or “Magellan”, may not produce “gpx”
> data files and need other processes in combination with GIS.
> However, the Garmin “Dakota” and “Oregon” types seem to be the most
> popular ones and other types and brands may use the 
> “gpx”-interchange format as well.
> 
> Different GIS applications (ArcGIS, QGIS, gvSIG…) have different
> ways of dealing with GPS-data as well. Some can import from GPS
> devices directly, but probably not from all of them. Most common
> standards to provide data for GIS layers are shape files or spacial
> database tables (e.g. PostgreSQL/PostGIS).
> 
> Since many people working with GIS/GPS applications have similar
> tasks to do and have to deal with similar issues and requirements,
> several tools have already been developed and provided to the
> community. Over the last two years me myself I have done a lot of
> work in these kind of scenarios and I realized that it is time to
> compile a “best practice” handout from my experiences so far, for
> the benefit of all of you. Of course there is not “one way only” to
> achieve the same results. However, I wish this small document to
> support you in your daily efforts.
> 
> Should you have any questions, please don’t hesitate to get back to
> me. I appreciate any feedback from your side, so hopefully these
> instructions can be extended with your experiences, too. Please
> feel free to distribute this document to other persons that may be
> interested.
> 
> Thanks a lot and best regards Klaus
> 
> Transfer-gpx-Files-to-GIS_1.00-001.pdf 
> <http://osgeo-org.1560.n6.nabble.com/file/n5004621/Transfer-gpx-Files-to-GIS_1.00-001.pdf>
>
>
>
>
> 
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Thank
> 
you very much Klaus for your document.

As you say there are many ways to convert GPX files to something more
"GIS" friendly. In fact it's quite desirable as I understand GPX as
something "raw", your starting point to derive data.

OGR is a well known library that understands GPX[5] so you can easily
convert from this format to many others[1] using the ogr2ogr utility
program[2]. Here there is a cheatsheet to have at hand[3].

OGR can be installed on Ubuntu/Debian from the "gdal-bin" package. In
Windows you can use the OSGeo4W[4] distribution.

Cheers

[1] http://www.gdal.org/ogr/ogr_formats.html
[2] http://www.gdal.org/ogr2ogr.html
[3]
http://www.bostongis.com/PrinterFriendly.aspx?content_name=ogr_cheatsheet
[4] http://trac.osgeo.org/osgeo4w/
[5] http://www.gdal.org/ogr/drv_gpx.html

- -- 
Jorge Gaspar Sanz Salinas
http://www.prodevelop.es
tfno: +34 963 510 612


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- -- 
Jorge Gaspar Sanz Salinas
gvSIG Team at Prodevelop
Technical Collaborations Manager
http://www.gvsig.org
http://www.gvsig.com
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