[R-sig-Geo] Compile sf in windows with liblwgeom

[Edzer Pebesma]

On 16/09/17 15:20, Eduardo Diez wrote:
> Dear list,
> I have a MULTIPOLYGON geometry set where the rings are in the wrong
> direction and would like to correct that with *st_make_valid*. As I'm in
> Windows and use the binary version of the *sf* package it gives me the
> error:
> 
>> sp2 = st_make_valid(sp1)
> Error in CPL_make_valid(x) :
>   st_make_valid requires compilation against liblwgeom
> 
> Is there a series of steps I can follow for compiling *sf* in Windows
> linked to liblwgeom?

No, and I also don't think that st_make_valid does this.

Converting to sp and back, like

st_as_sf(as(sp1, "Spatial"))

might do the trick, though.

> 
> Thanks
> 
> 	[[alternative HTML version deleted]]
> 
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-- 
Edzer Pebesma
Institute for Geoinformatics  (ifgi),  University of Münster
Heisenbergstraße 2, 48149 Münster, Germany; +49 251 83 33081
Journal of Statistical Software:   http://www.jstatsoft.org/
Computers & Geosciences:   http://elsevier.com/locate/cageo/

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