Hi,
PostGIS documentation for the st_intersection
<https://postgis.net/docs/ST_Intersection.html> states the following
> If working with 3D geometries, you may want to use SFGCAL based
> ST_3DIntersection <https://postgis.net/docs/ST_3DIntersection.html> which
> does a proper 3D intersection for 3D geometries. Although this function works
> with Z-coordinate, it does an averaging of Z-Coordinate.
I have used that averaging in the past, but it seems that I can no longer use
it in PostgreSQL 14 and PostGIS 3.3.2 (POSTGIS="3.3.2 4975da8" [EXTENSION]
PGSQL="140" GEOS="3.10.2-CAPI-1.16.0" PROJ="8.2.1" LIBXML="2.9.13"
LIBJSON="0.15" LIBPROTOBUF="1.3.3" WAGYU="0.5.0 (Internal)")
SELECT ST_AsText(ST_Intersection('POINTZ(0 0 0)'::geometry, 'LINESTRINGZ ( 0 0
5, 0 2 5)'::geometry));
Used to return:
'POINT Z (0 0 2.5)'
but now it returns
'POINT Z (0 0 0)'
Is this expected or a bug.
Greetings,
Alexandre Neto_______________________________________________
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