[postgis-devel] CGAL/SFCGAL

[Sebastiaan Couwenberg]

On 2/28/20 10:54 AM, rmrodriguez at carto.com wrote:
>> Has there been some work in trunk to support newer versions of CGAL/SFCGAL and in particular (I think) do something special with invalid geometries being sent into CGAL/SFCGAL? It seems like the fact that PGDG had to peg their versions back down at 4.7/1.3.1 is worrisome, maybe we have a general problem with newer versions?
> 
> AFAIK, we haven't changed anything to add support to newer minor releases.
> 
> We have some issues open (#4157, #4513) that crash under
> `SFCGAL::algorithm::isValid`; I opened a ticket in sfcgal
> (https://github.com/Oslandia/SFCGAL/issues/194) but it hasn't seen any
> movement. To be honest, I've reached a point where I've spent 10x more
> time dealing with sfcgal issues (build it, checking bugs, etc) than
> using it (which is next to 0) so I'm not too keen to get into it
> again.

SFCGAL has a tendency to break whenever CGAL is updated, that makes it a
very annoying dependency of PostGIS. I would be very happy if PostGIS
removed support for SFCGAL or incorporated its 3D features in PostGIS
itself.

Kind Regards,

Bas

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