In addition to which, the
rgeos
package may have something.
If it's just a single polyline, it may be pretty easy to pull out the
coordinates as a two column matrix, append the first row at the end, and rebuild
it as a polygon.
The readOGR function in the rgdal package is probably a better choice for
loading a shapfile into R. See also the relatively new package named
"sf".
-Don
--
Don MacQueen
Lawrence Livermore National Laboratory
7000 East Ave., L-627
Livermore, CA 94550
925-423-1062
Lab cell 925-724-7509
On 11/13/17, 12:47 AM, "R-help on behalf of Jeff Newmiller"
<r-help-bounces at r-project.org on behalf of jdnewmil at dcn.davis.ca.us>
wrote:
Might want to post this on R-sig-geo.
Might also want to post in plain text format... see below how your message
got messed up coming through the mailing list.
--
Sent from my phone. Please excuse my brevity.
On November 12, 2017 9:58:56 PM PST, Javad Bayat via R-help <r-help at
r-project.org> wrote:
>I have a shape file as poly line and I want to convert it to polygon.Is
>it possible to do that in R?lake
><-readShapeLines("./lake_main_utm.shp")proj4string(lake)
<-
>CRS("+proj=utm +zone=39 +datum=WGS84")
>
>Sincerely.
>
> [[alternative HTML version deleted]]
>
>______________________________________________
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