Thank you Edzer. I was hoping there was a simpler solution, but it's still
fairly simple.

Renaud

2009/5/7 Edzer Pebesma <edzer.pebesma@uni-muenster.de>

> Yes, but you will not like that call.
>
> In R (package sp), each spatial data set can only have one single
> projection. I'd suggest, in pseudo-code
>
> - import the data into a data.frame
> - for each UTM zone do:
>   select the locations
>   set their CRS
>   reproject to long/lat
> - cbind the locations to a single data structure
> - convert back to data.frame if needed.
> --
> Edzer Pebesma
> Institute for Geoinformatics (ifgi), University of Münster
> Weseler Straße 253, 48151 Münster, Germany. Phone: +49 251
> 8333081, Fax: +49 251 8339763 http://ifgi.uni-muenster.de/
> http://www.springer.com/978-0-387-78170-9 e.pebesma@wwu.de
>
> Renaud Lancelot wrote:
> > Dear all,
> >
> > I have a big dataset (> 200,000 lines) of georeferenced locations
> > where the coordinates are given in UTM, spanning over several zones.
> > Is is possible to convert all the UTM coordinates into longlat WGS84
> > with a single call ?
> >
> > Renaud
>
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>



-- 
Renaud Lancelot
EDEN Project, coordinator
http://www.eden-fp6project.net/

UMR CIRAD-INRA "Contrôle des maladies animales exotiques et émergentes"
Joint research unit "Control of emerging and exotic animal diseases"

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