On Mon, 2 May 2022 at 13:39, Lars Aksel Opsahl <[email protected]> wrote:
> >From: postgis-users <[email protected]> on behalf of > Shaozhong SHI <[email protected]> > >Sent: Monday, May 2, 2022 12:22 PM > >To: PostGIS Users Discussion <[email protected]> > >Subject: [postgis-users] Is there a better way for Finding Gaps/Sliver > Holes? > > > >This solution does not appear to be well explained. > > > >Find Topology Error With PostGIS (khairu-aqsara.net) > > > >Has anyone tested it? > > > >Is there a better way for Finding Gaps/Sliver Holes? > > > >Regards, > > > >David > > Hi > > At https://github.com/larsop/find-overlap-and-gap > we have code that checks for overlaps and gaps on simple feature polygons > and creates a spatial tables with the results. We have used this code on > tables with millions of rows. > > And yes we see gaps/overlap as polygons, lines and points . > > Lars > _______________________________________________ > postgis-users mailing list > [email protected] > https://lists.osgeo.org/mailman/listinfo/postgis-users Hi, Lars, This is a mixture of codes for parallel processing and finding overlaps and gaps. At the moment, what I am looking for is the steps and codes just for finding overlaps and gaps, namely the computational logic and codes. It is very hard to find these in all these codes. Regards, David
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