[postgis-users] Which operators/functions work with circular arcs?

[Paragon Corporation]

Paul,

> The area calculations don't work.

> A comprehensive survey would be most appreciated.

By they don't work, what exactly do you mean? Do you mean it gives the wrong
answer?

The gardens tests on curves didn't error out on ST_Area.  This same test
also doesn't error out in PostGIS 2.1

SELECT ST_Area(
ST_GeomFromEWKT('SRID=4326;CURVEPOLYGON(CIRCULARSTRING(-71.0821 42.3036,
-71.4821 42.3036, -71.7821 42.7036, -71.0821 42.7036, -71.0821
42.3036),(-71.1821 42.4036, -71.3821 42.6036, -71.3821 42.4036, -71.1821
42.4036) ) ') );

Thanks,
Regina
On Thu, Aug 20, 2015 at 7:30 AM, Andreas Neumann <a.neumann at carto.net>
wrote:
> Hi,
>
> I wonder how I can find out what operators and what functions work 
> with circular arcs? Are they marked in the documentation as such?
>
> Thank you for your hints!
>
> Andreas
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