On Wed, Jul 20, 2022 at 06:00:05PM +1000, Simon SPDBA Greener wrote: > I could run up a quick test but does PostGIS topology have a mechanism for > handling this situation? How does it handle linestrings defined as XYZ?
PostGIS Topology *forces* any planar intersection to generate a node. There's no way to represent a river not intersecting a bridge over it. Thee only handling of Z is to carry it around and interpolate it when creating new intersections: it's a 2.5D topology. What you describe may be better implemented with pgRouting. --strk; _______________________________________________ postgis-users mailing list postgis-users@lists.osgeo.org https://lists.osgeo.org/mailman/listinfo/postgis-users
