Search Results
Search type | Search syntax |
---|---|
Tags | [tag] |
Exact | "words here" |
Author |
user:1234 user:me (yours) |
Score |
score:3 (3+) score:0 (none) |
Answers |
answers:3 (3+) answers:0 (none) isaccepted:yes hasaccepted:no inquestion:1234 |
Views | views:250 |
Code | code:"if (foo != bar)" |
Sections |
title:apples body:"apples oranges" |
URL | url:"*.example.com" |
Saves | in:saves |
Status |
closed:yes duplicate:no migrated:no wiki:no |
Types |
is:question is:answer |
Exclude |
-[tag] -apples |
For more details on advanced search visit our help page |
To combine data into larger units. For example a group of points to a polygon, or political subdivisions (provinces) to larger entities (country).
0
votes
Accepted
Using PostGIS to generate a polygon representing the area shared by some (but not all) of a ...
One of the people who replied (see Paul Ramsey above) posted a great answer on this blog here: https://info.crunchydata.com/blog/polygon-averaging-in-postgis.
3
votes
3
answers
617
views
Using PostGIS to generate a polygon representing the area shared by some (but not all) of a ...
I have an application where several users submit polygons, and I am looking to create an aggregate polygon that represents a kind of average of their submissions. We use PostGIS for our spatial analys …