[R-sig-eco] Conversion of lat/long coordinates to ETRS89

[Levy, Yair]

Dear Mauricio,


I would confirm the use of rgdal::spTransform as appropriate. Also, one could add creating a CRS database as follows:

#European Petroleum Survey Group list creation
EPSG <- make_EPSG()

The geographical ETRS89 CRS is then the following I believe:

#ETRS89 (= EUREF89 = GRS80)
CRS("+init=epsg:4258")


Applying spTransform following this function's instructions shouldn't be a challenge I believe. I would strongly recommend comparing your new geographical/cartographical projections the first time you use this function in order to validate their accuracies.

Please let me know if it worked.

Best regards,





Yaïr Levy
Researcher
Flemish Government
Mobility and Public Works Department
Flanders’ Hydraulics
Berchemlei 115 - 2140 Antwerpen
T. 03 224 61 89 - G. 0476 75 47 25 - F. 03 224 60 36
www.watlab.be 

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-----Oorspronkelijk bericht-----
Van: r-sig-ecology-bounces at r-project.org [mailto:r-sig-ecology-bounces at r-project.org] Namens Mauricio Zambrano-Bigiarini
Verzonden: mercredi 20 mars 2013 09:29
Aan: r-sig-ecology at r-project.org
Onderwerp: Re: [R-sig-eco] Conversion of lat/long coordinates to ETRS89

On 20/03/13 08:33, Daniel Flø wrote:
> Hi,
>
> We have several lat/long coordinates for Finland that we would like to convert into a selected projection (such as ETRS89/ETRS-TM35FIN or other).
> Could someone inform us about what package and function we should use to batch converte, and details in the procedure we should be aware of?

?rgdal::spTransform

r-sig-geo is a better place for more specific questions.

Kind regards,

Mauricio Zambrano-Bigiarini

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> We do not have additional information to the lat/long coordinates, but this is may be not necessary?


>
>
>
> Daniel Flø
> PhD Fellow, Forest Health
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