[OSM-talk] SteveC; C = Cool

[Matt Amos]

On Tue, Jul 7, 2009 at 10:26 PM, Stefan de Konink<stefan at konink.de> wrote:
> SteveC wrote:
>> inventing nodes, ways, segments (remember them?)
>
> You *did not* invent the spaghetti model, please give credit to the
> original inventor Stan Aronoff, in Geographic information systems: A
> management perspective (1989).

actually, OSM doesn't use the spaghetti model. according to [1,2],
Aronoff's spaghetti model treats points as coordinates and lines as
lists of coordinates - basically what the OGC's "simple features
architecture" [3] uses - and there's no explicit connectivity. OSM, on
the other hand, uses a topological model which comes from a graph
theory background, so really we should be crediting Leonhard Euler.

cheers,

matt

1: http://www.unescap.org/stat/pop-it/pop-guide/gis_ch04.pdf
2: http://eprints.utm.my/6685/1/78062.pdf
3: http://www.opengeospatial.org/standards/sfa