[postgis-devel] lwgeom_getsrid()

[Sandro Santilli]

On Thu, Aug 11, 2011 at 09:07:01AM +0100, Mark Cave-Ayland wrote:
> On 11/08/11 08:10, Sandro Santilli wrote:
> 
> >>I'm getting a little turned around with all the different forms I can find
> >>geometries in. What is (uchar *) and how does it relate to PG_LWGEOM, LWGEOM
> >>and friends? Specifically, if I have a (LWGEOM *), how do I get a (uchar *)?
> >>This seems to be the only "accessor" method which doesn't take (LWGEOM *).
> >
> >I think all the "serialized" and "inspected" functions should be
> >moved to liblwgeom_internal.h. You shouldn't be using those forms,
> >surely not to get a SRID out of an LWGEOM.
> >Current way to get it is trough LWGEOM.srid, altought we may add
> >an lwgeom_get_srid(const LWGEOM*) to go along the existing
> >lwgeom_set_srid(LWGEOM*, int).
> 
> I'd say once G_GEOMETRY is in we should ditch any functions using
> serialized/inspected forms permanently, as since we're not copying
> coordinate lists any longer the deserialisation process overhead
> should be very small.

What is that waiting for ? Performance comparisons ? Is the call out yet ?

--strk; 

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