[OSM-dev] tools to add buffer to poly

[Jochen Topf]

On Tue, Nov 27, 2018 at 10:50:13AM +0100, Florian Lohoff wrote:
> On Tue, Nov 27, 2018 at 12:14:16PM +0300, Darafei "Komяpa" Praliaskouski wrote:
> > Hi,
> > 
> > if you have a PostGIS at hand:
> 
> I have.
>  
> > select ST_Buffer('POLYGON(lon lat, lon lat, lon lat....)'::geography, 50);
> > 
> > http://www.postgis.net/docs/ST_Buffer.html
> 
> I know that - That means i need to rexport the admin boundarys from
> wambacher as shape. Use shp2pgsql to put them into the postgis,
> buffer them and rexport somehow as poly.
> 
> I though i would not be the only one having the problem. 
> 
> I whished osmconvert had a "ready to use" buffer function for
> the -B option ;)

Export from PostGIS as GeoJSON and use "osmium extract" which can read
the GeoJSON. Or see my other mail.

Jochen
-- 
Jochen Topf  jochen at remote.org  https://www.jochentopf.com/  +49-351-31778688