[postgis-users] [postgis-devel] linking 2 topogeometries of different nature

[Rémi Cura]

Sorry I'm being very unclear.

And I totally agree with you, even if that's not a conceptual bug as the
function doesn't do this.

I prepared some images,
can I join it to mail to the list or is it forbidden?

Cheers,
Rémi-C


2013/10/28 Sandro Santilli <strk at keybit.net>

> On Mon, Oct 28, 2013 at 11:00:59AM +0100, Rémi Cura wrote:
> > Hey all,
> >
> > Hey Sandro.
> >
> > The first beta version of the function is completed.
> >  ** GetRelatedTopogeom(source_topo topogeometry, target_topo_layer_id
> INT);
> > **
> > It returns set of topogeometry of the layer target_topo_layer_id that may
> > be affected by a change in topogeometry source_topo.
>
> Uhm, I just realized there's a conceptual bug here.
> The only TopoGeometry objects that would be affected by a change in
> another TopoGeometry object are those used by hierarchical layers.
>
> TopoGeometry objects are only defined by relations, if you _change_
> a TopoGeometry you basically change its set of relations, which
> doesn't affect other sets.
>
> --strk;
>
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