ST_WrapX
Prev | 8.5. Geometry Editors | Next

## Name

ST_WrapX — Wrap a geometry around an X value.

## Synopsis

`geometry ST_WrapX(`geometry geom, float8 wrap, float8 move`)`;

## Description

This function splits the input geometries and then moves every resulting component falling on the right (for negative 'move') or on the left (for positive 'move') of given 'wrap' line in the direction specified by the 'move' parameter, finally re-unioning the pieces together.

This is useful to "recenter" long-lat input to have features of interest not spawned from one side to the other.

Availability: 2.3.0 requires GEOS

This function supports 3d and will not drop the z-index.

## Examples

    -- Move all components of the given geometries whose bounding box
    -- falls completely on the left of x=0 to +360
    select ST_WrapX(geom, 0, 360);

    -- Move all components of the given geometries whose bounding box
    -- falls completely on the left of x=-30 to +360
    select ST_WrapX(geom, -30, 360);

## See Also

ST_ShiftLongitude

Prev | Up | Next
ST_ShiftLongitude | Home | ST_SnapToGrid