[postgis-users] [postgis-devel] CreateTopoGeom -- why can't create polygon topo from edges

Sandro Santilli strk at keybit.net
Wed Sep 14 04:57:43 PDT 2011


On Wed, Sep 14, 2011 at 01:53:57PM +0200, Sandro Santilli wrote:
> On Wed, Sep 14, 2011 at 12:17:57AM -0400, Paragon Corporation wrote:
> > strk and Andrea,
> >  
> > Perhaps this is just illegal by specs, but I'm wondering why I couldn't
> > logically create a multi/poly topogeometry from edges that form the boundary
> > of a polygon? or do the specs just not
> > allow that.  I see the CreateTopoGeom just throws an error if I dear try to
> > create a polygon from edges.
> 
> The existing CreateTopoGeom is just plain broken.
> I'm going to work on it in the upcoming weeks.

Oops, sorry, I was confusing it with ST_CreateTopoGeo...
CreateTopoGeom can probably be improved to accept different
kind of inputs. It's not an ISO function so we're free to 
make it as good as we like. First step is figuring out interfaces
and file enhancement tickets :)

--strk;

  ()   Free GIS & Flash consultant/developer
  /\   http://strk.keybit.net/services.html



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