ST_InterpolatePoint
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Name

ST_InterpolatePoint — Returns the interpolated measure of a geometry closest to a point.

Synopsis

float8 ST_InterpolatePoint(geometry linear_geom_with_measure, geometry point);

Descrizione

Returns an interpolated measure value of a linear measured geometry at the location closest to the given point.

[Note]

Use this function only for linear geometries with an M component

Disponibilità: 2.0.0

Questa funzione supporta il 3d e non distrugge gli z-index.

Esempi

SELECT ST_InterpolatePoint(
    'LINESTRING M (0 0 0, 10 0 20)',
    'POINT(5 5)');
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