ST_RelateMatch — Returns true if intersectionMattrixPattern1 implies intersectionMatrixPattern2
boolean ST_RelateMatch(
text intersectionMatrix, text intersectionMatrixPattern)
;
Takes intersectionMatrix and intersectionMatrixPattern and Returns true if the intersectionMatrix satisfies the intersectionMatrixPattern. For more information refer to Section 4.3.6, “Dimensionally Extended 9 Intersection Model (DE-9IM)”.
Performed by the GEOS module
Availability: 2.0.0
SELECT ST_RelateMatch('101202FFF', 'TTTTTTFFF') ; -- result -- t --example of common intersection matrix patterns and example matrices -- comparing relationships of involving one invalid geometry and ( a line and polygon that intersect at interior and boundary) SELECT mat.name, pat.name, ST_RelateMatch(mat.val, pat.val) As satisfied FROM ( VALUES ('Equality', 'T1FF1FFF1'), ('Overlaps', 'T*T***T**'), ('Within', 'T*F**F***'), ('Disjoint', 'FF*FF****') As pat(name,val) CROSS JOIN ( VALUES ('Self intersections (invalid)', '111111111'), ('IE2_BI1_BB0_BE1_EI1_EE2', 'FF2101102'), ('IB1_IE1_BB0_BE0_EI2_EI1_EE2', 'F11F00212') ) As mat(name,val);