[R-sig-Geo] Delimit a polygon for the region which is>, 1000 m from my raster altitude

Robert J. Hijmans r.hijmans at gmail.com
Sun May 3 02:50:05 CEST 2015


If you want to keep the raster cell values, you could do

shapefile(pol2, "polygon2.shp")

and use that file.


On Sat, May 2, 2015 at 2:10 PM, sadaoui <sadaouimahrez at outlook.com> wrote:
> Thank you "Robert Hijmans",
>
> it works with this function ;
>
> shapefile(pol3, "polygon3.shp")
>
>
> but I want to have the corresponding data to this shapefile.
>
> I tried, as did you say :
>
> "or use the SpatialPolygons object to create a SpatialPolygonsDataFrame
> and then use writeOGR (that is what the shapefile function does for
> you). "
>
> I tried to follow this solution :
>
> http://gis.stackexchange.com/questions/61633/r-convert-a-spatial-polygon-objet-to-spatial-polygon-data-frame
>
> but I can not convert the spatial polygon to SpatialPolygonsDataFrame. sorry
> i am a beginner in this field.
>
> thank you
>
>
>
>
>
>
>
> --
> View this message in context: http://r-sig-geo.2731867.n2.nabble.com/Re-Delimit-a-polygon-for-the-region-which-is-1000-m-from-my-raster-altitude-tp7588152p7588155.html
> Sent from the R-sig-geo mailing list archive at Nabble.com.
>
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