[postgis-users] massive snap of points of one geometry to points of another geometry

strk strk at keybit.net
Mon Nov 15 09:03:49 PST 2010

On Mon, Nov 15, 2010 at 05:35:29PM +0100, Pierluigi Santin wrote:

> I heard about a function in postgis that allow to force db to do
> something like
> "if a point of a feature A is within x centimeters from a point of
> another feature B, snap point of feature A over point of feature B"
> I would like to do that massively over all shapes of city plan
> Is there anybody that can give me a hint?

The function exists within GEOS, which is a library used by PostGIS.
But the specific functionality (snapping) isn't exposed in SQL yet.

What you could do is implement or fund implementation of
the missing bit (the wrapper).


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