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Delimit a polygon for the region which is>, 1000 m from my raster altitude

sadaoui 
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







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Thread (6 messages)

"José M. Blanco Moreno" Delimit a polygon for the region which is>, 1000 m from my raster altitude May 2 sadaoui Delimit a polygon for the region which is>, 1000 m from my raster altitude May 2 Robert J. Hijmans Delimit a polygon for the region which is>, 1000 m from my raster altitude May 2 sadaoui Delimit a polygon for the region which is>, 1000 m from my raster altitude May 2 Robert J. Hijmans Delimit a polygon for the region which is>, 1000 m from my raster altitude May 2 sadaoui Delimit a polygon for the region which is>, 1000 m from my raster altitude May 3