[postgis-devel] Problem with st_buffer method on CircularStrings

Mark Leslie mrk.leslie at gmail.com
Sun Oct 12 16:13:48 PDT 2008


Ken Southerland wrote:
> I am running Postgres 8.2 with postgis 1.3.1 and am having a problem
> with the buffer command on circular strings.
>
> nrgdb=# select st_buffer( GeomFromText('CIRCULARSTRING(1 1, 2 2, 1.5
> 1.5)'), 2);
>
> ERROR:  Exception in LWGEOM2GEOS: curved geometry not supported.
>
> Is this a problem with GEOS not having caught up?
>
> Ken
>
That is correct.  At the moment curved geometries are only supported for
loading/unloading, indexing and some simple functions like ST_length.

-- 
Mark Leslie
Geospatial Software Architect
LISAsoft

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