CG_Intersects
Prev  8.3. SFCGAL Processing and Relationship Functions  Next

Name

CG_Intersects — Tests if two geometries intersect (they have at least one point in common)

Synopsis

boolean CG_Intersects( geometry geomA , geometry geomB );

Description

Returns true if two geometries intersect. Geometries intersect if they have any point in common.

Performed by the SFCGAL module

[Note]

NOTE: this is the "allowable" version that returns a boolean, not an integer.

Availability: 3.5.0

This method needs SFCGAL backend.

This function supports Triangles and Triangulated Irregular Network Surfaces (TIN).

Geometry Examples

SELECT CG_Intersects('POINT(0 0)'::geometry, 'LINESTRING ( 2 0, 0 2 )'::geometry);
    cg_intersects
    ---------------
    f
    (1 row)
    SELECT CG_Intersects('POINT(0 0)'::geometry, 'LINESTRING ( 0 0, 0 2 )'::geometry);
    cg_intersects
    ---------------
    t
    (1 row)