point_along_line
Returns a point on a line geometry at a distance along it expressed as a proportion of the total length of the line. For a 3D geometry, the point position is located by applying the proportion to the geometry in plan. The located point has its height calculated by interpolating between vertices.
Number of parameters: 2.
Parameter 1 - a line geometry.
Parameter 2 - proportional distance along the line, a real number in the range between 0 and 1.
Returns: a point geometry.