Re: [postgis-users] Linestring and tsrange

2017-05-23 Thread Regina Obe
Nathan, I think thinking about geometries as just representing physical space is a bit short-sighted. There are so many things in this world that lend themselves to a spatial representation that aren't physical or at least not physical in the way most people think about physical. We

Re: [postgis-users] identifing duplicate line features (with different draw directions0

2017-05-23 Thread Richard Greenwood
Have you thought about using a topology? Seems like that's sort of what you're after. On May 19, 2017 11:55 AM, "Basques, Bob (CI-StPaul)" < bob.basq...@ci.stpaul.mn.us> wrote: > I’m trying to remove all duplicated parcel edges from an exploded parcel > dataset. I have a set of 2 point line segm

Re: [postgis-users] curve between geo points

2017-05-23 Thread François B
It depends on the type of your column. If it's standard "geometry", then it's a straight line in the 2D space defined by your coordinate system. If it's "geography", then it's a curve, aka geodesic or great circle. >From the manual: 4.2. PostGIS Geography Type https://postgis.net/docs/using_postg

Re: [postgis-users] Linestring and tsrange

2017-05-23 Thread Komяpa
Hi, Please try not to break abstractions when designing something that would live more than an hour. Linestring is for geometry (with at least two dimensions), tsrange is for 1D temporal intervals. If you lack any functionality you gain by breaking abstraction better implement it directly. On аў,