[postgis-devel] WKB types: polyhedral surface, tin, triangle

[Paul Ramsey]

I think it is fair comment to wonder why this new "modularized" spec
that is supposed to superset the old specs drops support for the curve
types that exist in SQL/MM-2006. They are enumerated on page 86, but
noted as being for "future use". Hey, we already use them!

P.

On Tue, Oct 5, 2010 at 3:26 PM, Paul Ramsey <pramsey at opengeo.org> wrote:
> Nevermind, I found it in the new "modularized" draft, along with a
> raft of questions about inconsistencies.
>
> - The WKT definition does not include a 2D version of polyhedral
> surface, but the WKB one does.
> - All the definitions include things like PolyhedralSurfaceM. M? WTF
> does a 2-dimensional-with-measure polyhedron mean in the real world?
> use case?
> - Typo in the WKBGeometryZM entry indicates that PolyhedralSurfaceM is
> a member (rather than ZM)
>
> BTW, the numbers in the ISO draft do not match the ones you stubbed
> into liblwgeom.h, which I think means you'll generate invalid WKB for
> these entities?
>
> P.
>
> On Tue, Oct 5, 2010 at 3:20 PM, Paul Ramsey <pramsey at opengeo.org> wrote:
>> Olivier,
>> I'm working on the new WKB parser/emitters and wondering where I can find the official type numbers for the polyhedral surface, tin, and triangle types? I see you have stubbed them into liblwgeom.h as 13, 14 and 15, but I'd like to see the appropriate specification document on how they are supposed to be structured.
>> Thanks,
>> Paul
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>