Predicates

has_z(geometry, **kwargs)	Returns True if a geometry has a Z coordinate.
is_ccw(geometry, **kwargs)	Returns True if a linestring or linearring is counterclockwise.
is_closed(geometry, **kwargs)	Returns True if a linestring's first and last points are equal.
is_empty(geometry, **kwargs)	Returns True if a geometry is an empty point, polygon, etc.
is_geometry(geometry, **kwargs)	Returns True if the object is a geometry
is_missing(geometry, **kwargs)	Returns True if the object is not a geometry (None)
is_prepared(geometry, **kwargs)	Returns True if a Geometry is prepared.
is_ring(geometry, **kwargs)	Returns True if a linestring is closed and simple.
is_simple(geometry, **kwargs)	Returns True if a Geometry has no anomalous geometric points, such as self-intersections or self tangency.
is_valid(geometry, **kwargs)	Returns True if a geometry is well formed.
is_valid_input(geometry, **kwargs)	Returns True if the object is a geometry or None
is_valid_reason(geometry, **kwargs)	Returns a string stating if a geometry is valid and if not, why.
crosses(a, b, **kwargs)	Returns True if A and B spatially cross.
contains(a, b, **kwargs)	Returns True if geometry B is completely inside geometry A.
contains_xy(geom, x[, y])	Returns True if the Point (x, y) is completely inside geometry A.
contains_properly(a, b, **kwargs)	Returns True if geometry B is completely inside geometry A, with no common boundary points.
covered_by(a, b, **kwargs)	Returns True if no point in geometry A is outside geometry B.
covers(a, b, **kwargs)	Returns True if no point in geometry B is outside geometry A.
disjoint(a, b, **kwargs)	Returns True if A and B do not share any point in space.
dwithin(a, b, distance, **kwargs)	Returns True if the geometries are within a given distance.
equals(a, b, **kwargs)	Returns True if A and B are spatially equal.
intersects(a, b, **kwargs)	Returns True if A and B share any portion of space.
intersects_xy(geom, x[, y])	Returns True if A and the Point (x, y) share any portion of space.
overlaps(a, b, **kwargs)	Returns True if A and B spatially overlap.
touches(a, b, **kwargs)	Returns True if the only points shared between A and B are on the boundary of A and B.
within(a, b, **kwargs)	Returns True if geometry A is completely inside geometry B.
equals_exact(a, b[, tolerance])	Returns True if A and B are structurally equal.
relate(a, b, **kwargs)	Returns a string representation of the DE-9IM intersection matrix.
relate_pattern(a, b, pattern, **kwargs)	Returns True if the DE-9IM string code for the relationship between the geometries satisfies the pattern, else False.