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

[Simon Cropper]

Hi Klaus,

Thanks for the handout. Good to see content being published and the 
inevitable "oh, have you seen these extensions and programs" by all and 
sundry. First time in a while that I have actually saved some posts 
because they provide some useful hints.

I would like to make some points regarding your document. They are not 
criticisms; rather suggestions of how the document could be improved or 
requests for clarification.

 1. You have noted, at the top of the document, that the document is
    copyrighted to yourself. This is OK but leaves other unclear of the
    allowed usages. Have you considered Creative Commons licenses?
    Something suitable, that is unambiguous and comparable to normal
    copyright, is Creative Commons Attribution-NonCommercial-NoDerivs
    3.0 Unported (CC BY-NC-ND 3.0)
    <http://creativecommons.org/licenses/by-nc-nd/3.0/>. Personally I
    publish under a CC BY-SA for the a range of reasons outlined here
    <http://www.fossworkflowguides.com/#legal_user>.
 2. OSGeo has a library of published educational material
    <http://www.osgeo.org/education> that you may wish to contribute
    your document; as does gvSIG (contact Mario Carrera).
 3. Your tutorial did not indicate whether you are using Windows, Mac-OS
    or Linux (I suspect Windows). Will this workflow actually work on
    all platforms?
 4. Your link embedded in the documents were not active. It is
    preferable for links to be active so the readers can quickly move
    from the PDF to the mentioned website without cutting-and-pasting
    the URL.
 5. STEP 1 & 2 outline how you can create a projected shapefile but STEP
    3 you show how to add a PostGIS layer to the view in gvSIG.
    Personally I would illustrate the adding the same file you showed
    the reader how to create to the view.


On 26/09/12 22:32, Klaus Schaefer wrote:
> Transfer-gpx-Files-to-GIS_1.00-001.pdf 
> <http://osgeo-org.1560.n6.nabble.com/file/n5004615/Transfer-gpx-Files-to-GIS_1.00-001.pdf>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 this 
> 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
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-- 
Cheers Simon

    Simon Cropper - Open Content Creator

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