[R] Convert poly line to polygon in R

[MacQueen, Don]

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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    ______________________________________________
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