Skip to main content
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
Results tagged with
Search options not deleted user 161172

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.
Zach's user avatar
  • 39
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 …
Zach's user avatar
  • 39