ST_LineSubstring¶

Introduction: Return a linestring being a substring of the input one starting and ending at the given fractions of total 2d length. Second and third arguments are Double values between 0 and 1. This only works with LINESTRINGs.

ST_LineSubstring

Format: ST_LineSubstring (geom: Geometry, startfraction: Double, endfraction: Double)

Return type: Geometry

Since: v1.5.0

Example:

SELECT ST_LineSubstring(ST_GeomFromWKT('LINESTRING(25 50, 100 125, 150 190)'), 0.333, 0.666)

Output:

LINESTRING (69.28469348539744 94.28469348539744, 100 125, 111.70035626068274 140.21046313888758)