Tagged Questions
4
votes
1answer
275 views
How you can repair invalid topology errors within postgis?
I've imported the shapefile of corine land cover project to my postgis database and the
select gid, ST_IsValidReason(geom) from gis.clc2000 where not ST_IsValid(geom);
returns in every occasion
...
9
votes
4answers
2k views
Remove Duplicate Polygons Using Open Source Tools
I have a shapefile containing features with duplicate geometries, but different attributes (e.g. a polygon with attribute XX, and an identical polygon with attribute XY). I want to identify the ...
