Description

Returns the two-point LineString spanning a geometry's minimum clearance. If the geometry does not have a minimum clearance, LINESTRING EMPTY is returned.

Performed by the GEOS module.

Availability: 2.3.0 - requires GEOS >= 3.6.0

Examples

SELECT ST_MinimumClearanceLine('POLYGON ((0 0,1 0,1 1,0.5 3.2e-4,0 0))');

LINESTRING(0.5 0.00032,0.5 0)
                  

010200000002000000000000000000E03FF168E388B5F8343F000000000000E03F0000000000000000

Figure

See Also

ST_MinimumClearance