1
vote
1answer
47 views

Force St_split() to return geometries in specific pattern

I'm Using PostGIS st_split() to split a polygon geometry by a linestring. Then I use st_dump() to return each of the splitted geometry and it is working fine. But the issue is I want to force ...
1
vote
1answer
69 views

Using ST_split to split a line feature using nearby points

I have a line shapefile and a point shapefile, and the line has just one segment and its attribute table, the point shapefile has points near the line above, not on it and the close ...
0
votes
1answer
81 views

How to cut/split multipolygon with blade (linestring) into two pieces using PostGIS? [closed]

I struggle to do split operation in postgis I tried to build a query but Im always fail. Id like to cut a multipoligon with a blade (a linestring) into two pieces. These two objects have specific ...
6
votes
5answers
2k views

How to split OSM roads into individual segments at intersections?

I want to create a road-network for use with pgRouting using OpenStreetMap data. I loaded a shapefile from GeoFabrik into a Postgres table (with PostGIS enabled). However, one problem I had was that ...