On Wed, Feb 25, 2015 at 12:14 PM, Joseph Spenner <[email protected]> wrote:
> DBD::Pg::st execute failed: ERROR: Error performing intersection: > TopologyException: Input geom 1 is invalid: Self-intersection at or near > point -381688.06935935974 -1206669.4272876547 at -381688.06935935974 > -1206669.4272876547 at ./test.pl line 151. > Did you try ST_IsValid to verify the geometry is valid according to the OGC standard? (See http://postgis.net/docs/using_postgis_dbmanagement.html#OGC_Validity. ST_IsValidDetail and ST_IsValidReason are also helpful in this regard.) What happens if you run it through ST_MakeValid? Be aware that ST_MakeValid can sometimes result in GeometryCollections if the input shape is malformed (usually "rings" without enough points are that have different start and end points).
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