[postgis-users] postgis 2.1 with geos 3.4

[Jonas van Schrojenstein]

Hi Everyone,

ST_DelaunayTriangles doesn't work in postgis 2.1.

when I run:

select ST_DelaunayTriangles(b.geom) from
centroids as b;

I get the following message:

ERROR:  lwgeom_delaunay_triangulation: GEOS 3.4 or higher required

********** Error **********

ERROR: lwgeom_delaunay_triangulation: GEOS 3.4 or higher required
SQL state: XX000


I am currently running postgis 2.1 with postgres 9.3 on an ubuntu virtual
machine in virtual box.

select PostGIS_Full_Version(); returns:

"POSTGIS="2.1.0 r11822" GEOS="3.4.2-CAPI-1.8.2 r3921" PROJ="Rel. 4.8.0, 6
March 2012" GDAL="GDAL 1.9.2, released 2012/10/08" LIBXML="2.7.8"
LIBJSON="UNKNOWN" TOPOLOGY RASTER"

I do not understand the error message as I am running GEOS 3.4.2.

Can someone help me with a solution?

Regards,
Jonas van Schrojenstein
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