[postgis-devel] Recognizing "kind" of geometry

[strk]

On Sat, Mar 06, 2010 at 12:08:42AM +0000, Mateusz Loskot wrote:
> strk wrote:
> > On Fri, Mar 05, 2010 at 10:39:21PM +0000, Mateusz Loskot wrote:
> > 
> >> Where is problem in determining if a GEOMERYCOLLECTION
> >> is mixed or homogeneous?
> > 
> > A collection of areas or points or lines can be rendered
> > as a single layer on a map using a consistent symbology.
> 
> Sure and I still can't see what's missing in current model.

A MIXED spec is missing:
 ST_Dimension returns *max* dimension of component geometries.

An EMPTY spec is missing:
 ST_isEmpty('GEOMETRYCOLLECTION(GEOMETRYCOLLECTION EMPTY)') 
return false (could be a bug)

--strk;

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