Hi all,

I think that topology cannot be simply geometry-based, it needs a
Feature model to work with, so that features can be related to each
other in a persistent way based on attributes.

So if JTS has to provide a topology model, I think there might be two
possible solutions:

1. JTS could provide an abstract layer to access feature attributes,
so that it could be plugged into any existing Feature model. In this
case, the topological relationships could be materialized in the
plugged Feature Model as normal feature attribute values.

2. The other solution could be treating geometries as if they were
features (WFS introduces the idea of a geometry ID, so it seems that
geometries are not simply attributes, but rather "standalone
objects"). In this case, the relationships could be based on the
geometry ID and somehow incapsulated in the Geometry objects.

Cheers

Sig

 On 6 Oct 2005 at 12:09, Matthias Basler wrote:

> Hi Martin,
>
> I am as well interested in a good and intuituve topology API.


--
Luca Sigfrido Percich    ([EMAIL PROTECTED])
Agenzia Milanese Mobilità e Ambiente s.r.l. (http://www.ama-mi.it)
Direzione Sistemi Informativi e Modellistica
Via Beccaria, 19 - 20122 Milano - tel. +39 02 884.67.262



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