shapely.crosses#
- crosses(a, b, **kwargs)#
Returns True if A and B spatially cross.
A crosses B if they have some but not all interior points in common, the intersection is one dimension less than the maximum dimension of A or B, and the intersection is not equal to either A or B.
- Parameters:
- a, bGeometry or array_like
- **kwargs
See NumPy ufunc docs for other keyword arguments.
See also
prepare
improve performance by preparing
a
(the first argument)
Examples
>>> from shapely import LineString, MultiPoint, Point, Polygon >>> line = LineString([(0, 0), (1, 1)]) >>> # A contains B: >>> crosses(line, Point(0.5, 0.5)) False >>> # A and B intersect at a point but do not share all points: >>> crosses(line, MultiPoint([(0, 1), (0.5, 0.5)])) True >>> crosses(line, LineString([(0, 1), (1, 0)])) True >>> # A is contained by B; their intersection is a line (same dimension): >>> crosses(line, LineString([(0, 0), (2, 2)])) False >>> area = Polygon([(0, 0), (1, 0), (1, 1), (0, 1), (0, 0)]) >>> # A contains B: >>> crosses(area, line) False >>> # A and B intersect with a line (lower dimension) but do not share all points: >>> crosses(area, LineString([(0, 0), (2, 2)])) True >>> # A contains B: >>> crosses(area, Point(0.5, 0.5)) False >>> # A contains some but not all points of B; they intersect at a point: >>> crosses(area, MultiPoint([(2, 2), (0.5, 0.5)])) True