[postgis-users] ST_Contains(a.coordinates::::geometry, b.coordinates::::geometry)

[Sandro Santilli]

On Tue, Aug 09, 2011 at 04:44:48PM +0300, Antonio Rodriges wrote:
> Dear all,
> 
> I have the table "contours" which stores geography column
> "coordinates" - these are closed polylines, many of them span a half
> of a globe.

Closed polylines contain each other only if there's NO point
in one of them being OUTSIDE or ON THE BOUNDARY of the other.

--strk;

  ()   Free GIS & Flash consultant/developer
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