[postgis-users] Data cleaning options

[Tim Keitt]

Hi All,

I have a large collection of rather malformed polygons in postgis and
need to clean them somehow. Running isvalid() on the geometry column
gives many "Ring self-intersection" errors, some "Interior is
disconnected" errors and the always enjoyable "Too few points in
geometry component" error. What options are there for
cleaning/correcting polygons?

THK

-- 
Timothy H. Keitt, University of Texas at Austin
Contact info and schedule at http://www.keittlab.org/tkeitt/
Reprints at http://www.keittlab.org/tkeitt/papers/
ODF attachment? See http://www.openoffice.org/