Coverting GPS Points in Text File to Spatial Lines
On Mon, 6 Feb 2012, Tomislav Hengl wrote:
Hi Armold, In what format is your GPS data? I highly suggest using the GPX protocol as this is the lingua franca for GPS data. I recently made a function that reads GPS data and converts into a data frame (via the XML package):
Or use the GPX OGR driver in rgdal through readOGR(dsn="myfile.gpx", layer="tracks") or a different layer definition - see ?readOGR. Roger
http://plotkml.r-forge.r-project.org/readGPX.html *this is still rather experimental but you can look at the actual steps via R-forge: https://r-forge.r-project.org/scm/viewvc.php/pkg/R/readGPX.R?view=markup&root=plotkml HTH, T. Hengl http://www.wewur.wur.nl/popups/vcard.aspx?id=HENGL001 On 5-2-2012 16:46, Arnold Salvacion wrote:
Dear All, I want to convert GPS traces from a text file to a line (spatial line). Does anybody have an idea how to implement this in R? Thanks in advance! Best regards, Armold [[alternative HTML version deleted]]
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Roger Bivand Department of Economics, NHH Norwegian School of Economics, Helleveien 30, N-5045 Bergen, Norway. voice: +47 55 95 93 55; fax +47 55 95 95 43 e-mail: Roger.Bivand at nhh.no