Lin.ear th.inking

 Every so often I produce an image in the JTS TestBuilder which strikes me as worthy of capture.  Here's one that seems pretty seasonal:...

A (long) while ago I posted about "soon-to-be-released" JTS code for polygon triangulation using Ear Clipping .  It turned out it...

Recently a GEOS  patch  was contributed to change the KdTree query implementation to use an explicit stack rather than recursion.  This has...

In a previous  post I described how the JTS Topology Suite operation IsSimpleOp has been completely rewritten to reduce code dependencies...

Hard to believe that the JTS Topology Suite is almost 20 years old.  That's 140 in dog years!  Despite what they say about old dogs, o...

TLDR: JTS can now fix invalid geometry! The JTS Topology Suite implements the Geometry model defined in the OGC Simple Features specificati...

The other day this badge popped up on my GitHub profile: Sure enough, there is JTS in the list of dependencies provided by the Jet Propuls...

A recent blog post  by Elephant Tamer gives a critical appraisal of the improvements to overlay processing shipped in PostGIS 3.1 with GEOS...

In a previous post I announced the new geosop command-line interface (CLI) for the GEOS geometry API.  This post provides examples of usi...

The GEOS geometry API is used by many, many projects to do their heavy geometric lifting.  But GEOS has always had a bit of a PR problem. ...