[postgis-users] How to design a database for continents, countries, regions, cities and POIs?
mkubenka at gmail.com
Mon Apr 9 08:34:04 PDT 2012
Thank's for your reply.
I think we'll go same ways as you describe - use two main tables `polygons`
and `points` and couple supporting tables which handle relationships
and additional content.
On Mon, Apr 9, 2012 at 3:05 PM, Andrea Peri <aperi2007 at gmail.com> wrote:
> >My question is how to design database for this system? I was thinking of 2
> >tables polygons and points, but I'm not sure if it's good way of thinking.
> we chhose by desing to use two table for the geometries (lines and
> And many tables to link the geometries inside these two tables.
> The two tables with geometries was called ""elementary_lines" (arcs) and
> "soil" (polygons).
> The main rule is that every element of the "elementary lines" is a linear
> object and it is also a segment on the boundary of one or two element
> polygons of the "soil" .
> Another rule is that the "soil" will give a "full cover of the soil". And
> every point has one and only one polygon to cover it.
> Every object of the "elementary lines" and of the "soil" as an unique
> alphanumeric universal identifier.
> It allow to have others table without geometry that allow to have distinct
> and specific attributes for every specific kind of object.
> This choice was need to grant a full topology for all the objects of the
> Also we develope a profile of "GML topological" to allow the exchange of
> out database.
> Andrea Peri
> . . . . . . . . .
> qwerty àèìòù
> postgis-users mailing list
> postgis-users at postgis.refractions.net
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the postgis-users