DuckDB function ST_InterpolatePoint

Computes the closest point on a LINESTRING to a given POINT and returns the interpolated M value of that point.

First argument must be a linestring and must have a M dimension. The second argument must be a point. Neither argument can be empty.

Usage

ST_InterpolatePoint(line, point)

Arguments

line, point

GEOMETRY

Value

DOUBLE

Provided by

The spatial extension (LOAD spatial;).