[postgis-users] docs

[Michael Welter]

Thank you Brent,

I've been trying to access the specifications at opengeospatial.org 
without success.  On my Mac OS X system I tried the Firefox browser, 
Mozilla, Safari, and IE.

However, when I used my wife's Windows laptop using Firefox, I was able 
to access the site.  Is someone from OGC listening?

Thanks,

Brent Wood wrote:
> --- Michael Welter <mike at telecommatters.net> wrote:
> 
>> Where can I find docs for the PostGIS software?
>>
>> For example, Contains(Polygon,Point) always returns false, but 
>> Contains(Polygon,Polygon) returns the appropriate boolean.
> 
> Do you have examples? That is not what I get:
> 
> baw=# select contains(geomfromtext('POLYGON((0 0,0 2,2 2,2 0,0
> 0))',4326),geomfromtext('POINT(1 1)',4326));
>  contains
> ----------
>  t
> (1 row)
> 
> baw=# select contains(geomfromtext('POLYGON((0 0,0 2,2 2,2 0,0
> 0))',4326),geomfromtext('POINT(-1 1)',4326));
>  contains
> ----------
>  f
> (1 row)
> 
> Thus true when the point is inside & false when it isn't, as it should be.
> 
>> Is there a document that specifies this?
> 
> There are two documents that are relevant, the PostGIS docs at www.postgis.org,
> but also the SFS whitepaper at:
> http://www.opengeospatial.org/standards/sfs
> which more fully defines the SFS functions which are implemented by PostGIS.
> 
> 
> 
> Cheers,
> 
>   Brent Wood
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> 
> 

-- 
Michael Welter
Telecom Matters Corp.
Denver, Colorado US
+1.303.414.4980
mike at TelecomMatters.net
www.TelecomMatters.net