[postgis-devel] Is ST_IsValid OGC or not OGC?

Paul Ramsey pramsey at cleverelephant.ca
Mon Oct 5 13:45:07 PDT 2009

As an addendum, I'm pretty sure ST_IsValid is an ISO function.


On Mon, Oct 5, 2009 at 1:37 PM, Mateusz Loskot <mateusz at loskot.net> wrote:
> Paul Ramsey wrote:
>> ST_IsValid is *not* an OGC defined function, but verifies that the
>> input geometry conforms to the structures and relationships for
>> geometry described in the OGC simple features specification.
> Thanks Paul!
> However, I'd (annoyingly) insist that the way how the reference to OGC
> spec is worded in the documentation of ST_IsValid is not precise
> and may be confusing. Especially when one compares to the similar note
> about ST_IsSimple.
> Best regards,
> --
> Mateusz Loskot, http://mateusz.loskot.net
> Charter Member of OSGeo, http://osgeo.org
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