[postgis-users] electronic GIS data scale

Kristian Thy thy at 42.dk
Tue Jan 6 05:57:01 PST 2009

On Tue, Jan 06, erik wrote:
> Sorry for my ignorance (I'm an eternal newbie) but is there a way to store
> scale information in PostGIS?

If you are talking about metadata, not out of the box. You can of course
just add a column holding the information in the table.

> This leads to my second question: is it pertinent to talk about scale with
> electronic GIS vector data


> and is *scale* the best way to express the
> precision of the data given the different digitization methods used?

Probably not.

> Is there another way to express precision?

I would use "accuracy in metres" (as in, the precision is +/- 5 metres).

... et nemo ex vobis interrogat me: »Quo vadis?«

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