[postgis-users] closest points of two polygons

[Martin Davis]

Yes, there is a JTS function which does this.

The deterimination of which two points are closest in two geometries is 
computed as part of the distance operation.  It just usually isn't 
exposed.  Should be an easy addition to make to PostGIS, I would think.

Robert Nuske wrote:
> Hi All,
>
> is there a way to get the closest points of two polygons?
> Basically the points on the polygons, which are used for the distance 
> calculations.
>
> I couldn't find anything among the postgis-functions (which might be caused by 
> my greenness) that would return the two closest points. But isn't there a 
> function in geos/JTS doing just that.
>
> I hope somebody can suggest a nice and easy way to obtain the points on the 
> boundaries of two polygons with the shortest distance.
>
> Any help is more than welcome.
>
> cheers,
>   robert
>
>
>
>
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>   

-- 
Martin Davis
Senior Technical Architect
Refractions Research, Inc.
(250) 383-3022