[R] RGEOS ERROR

[Pascal Oettli]

What is WorldMap? From where does it come?

Regards,
Pascal

On Tue, Sep 2, 2014 at 2:37 PM, Girija Kalyani <smileismystyl at gmail.com> wrote:
> working configuration:
> R-3.1.1
> WIN-64
> goal: want to perfrom ploygon clipping, giving bounding box values of my
> study area and extract the area from world map.
>  I followed:
>
>> clip.extent <- as(extent(76.3700, 31.7439, 78.6541, 33.2653), "SpatialPolygons")
>
>> proj4string(clip.extent) <- CRS(proj4string(WorldMap))> LSMap <- gIntersection(WorldMap, clip.extent, byid = TRUE)
>
> Error :
>
> In RGEOSBinTopoFunc(spgeom1, spgeom2, byid, id, drop_not_poly,
> "rgeos_intersection") :
>   spgeom1 and spgeom2 have different proj4 strings
>
>
> Any help or assistance would be highly obliged
>
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>
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-- 
Pascal Oettli
Project Scientist
JAMSTEC
Yokohama, Japan