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This function returns a two-point LineString geometry representing the minimum clearance distance of the input geometry. If the input geometry does not have a defined minimum clearance, such as for single Points or coincident MultiPoints, an empty LineString geometry is returned instead. ST_MinimumClearanceLine

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Signatures

ST_MinimumClearanceLine(geometry: Geometry)

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Parameters

​
geometry
Geometry
required
The input geometry.

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Return type

The resulting geometry.

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Example

SELECT ST_MinimumClearanceLine(
        ST_GeomFromWKT('POLYGON ((65 18, 62 16, 64.5 16, 62 14, 65 14, 65 18))')
)

LINESTRING (64.5 16, 65 16)