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touches Function

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touches Function

The touches function determines whether two geometry objects touch by calculating the DE-9IM intersection matrix.

Syntax

Alchemy
touches(geom_a, geom_b);

Nomenclature

geom_aRequired. A geometry object
geom_bRequired. A geometry object

Returns

True if either of the geometry objects' boundaries intersect, or if only one of the interiors of the geometry objects intersects the other object's boundary.

Otherwise, touches returns false.