GIS

[Diez B. Roggisch]

 I need to create a sphere with a certain size. I have x and y
> coordinates which I then need to calculated the distances between.
> I use postgresql, that is why I am looking at postgis.
> 
> If anybody knows of any documentation (except for what is on the postgis
> homepage) please let me know as I seam to have problems with the
> installation, postgres does not recognize the functions although the
> functions exist.

That is a question to ask on the postgis mailing list. And I can't see any
postings of you there so far...

I can tell you that I have successfully installed postigis with PG 8.0 and
8.1 - under a debian system. Just by following the available documentation.

Diez