[postgis-users] distance and intersection with 3d geometries

[Steffen Macke]

> Since GEOS-2.1.1 intersection() somehow supports 3d.

Below you find  a small example that illustrates the problem.
Is this behaviour going to change in the near future? Being able to
do three-dimensional intersection of points (or even better lines) would
be a very useful feature.

hna=# select asewkt(intersection('POINT(1 1 1)', 'POINT(1 1 0)'));
     asewkt
----------------
 POINT(1 1 0.5)
(1 row)

hna=# select postgis_full_version();
                                         postgis_full_version

--------------------------------------------------------------------------------
----------------------
 POSTGIS="1.0.4" GEOS="2.1.4" PROJ="Rel. 4.4.9, 29 Oct 2004" USE_STATS DBPROC="0
.3.0" RELPROC="0.3.0"