Tag Archives: GPS

Learning to make Polygons in Google Earth

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Today I am messing around and making KML and GPX files from our trip to Nigeria.

Reading: https://developers.google.com/kml/documentation/kml_tut#polygons and http://projects.visualstudies.duke.edu/isismapping/sites/default/files/isisguides/earthguide.pdf.
Watching:

http://www.youtube.com/watch?v=OGGpTqkbCWo

I hope to take some of our photos, a polygon of the language area, and our GPX route traces and overlay them on an Open Street Map page in WordPress.

The one thing I don't think is possible with GoogleEarth is to move polygons. I created them and then they were about a mile off, so I just wanted to move them... not possible. - to my knowledge.

Language Documentation and the Datum

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The importance of knowing about the Datum [1]Wikipedia contributors. Datum (geodesy). Wikipedia, The Free Encyclopedia. 3 April 2011, 00:28 UTC. Available at: http://en.wikipedia.org/w/index.php?title=Datum_(geodesy)&oldid=422063702. [Accessed … Continue reading recently came to my attention as I was working with GIS data on a Language Documentation project. We were collecting GPS coordinates with a handheld GPS unit and comparing these coordinates with data supplied by the national cartographic office. End goal was to compare data samples collected with conclusions proposed by the national cartographic office.

So, what am I talking about?

GIS data is used in a Geographical Information System. Basically, you can think of maps and what you might want to show with a map: rivers, towns, roads, language features, dialect markers, etc. Well, maps are shapes superimposed with a grid. And coordinates are a way of naming where on a particular grid a given point is located.

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References

References
↑1 Wikipedia contributors. Datum (geodesy). Wikipedia, The Free Encyclopedia. 3 April 2011, 00:28 UTC. Available at: http://en.wikipedia.org/w/index.php?title=Datum_(geodesy)&oldid=422063702. [Accessed 5 May 2011] [Link]

Review of Garmin eTrex Venture HC for Language Documentation

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In a recent (2010-2011) Language Documentation Project we decided to also collect GIS data (GPS Coordinates), about our consultants (place of origin and place of current dwelling), about our recording locations and for Geo-tagging Photos. We used a Garmin eTrex Venture HC to collect the data and then we compared this data with GIS information from Google maps and the National GIS information service. This write up and evaluation of the Garmin eTrex Venture HC is based on this experience.
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