geopandas.GeoSeries.intersects

GeoSeries.intersects(other, align=True)

Returns a Series of dtype('bool') with value True for each aligned geometry that intersects other.

An object is said to intersect other if its boundary and interior intersects in any way with those of the other.

The operation works on a 1-to-1 row-wise manner:

Parameters

otherGeoSeries or geometric object

The GeoSeries (elementwise) or geometric object to test if is intersected.

alignbool (default True)

If True, automatically aligns GeoSeries based on their indices. If False, the order of elements is preserved.

Returns

Series (bool)

See also

GeoSeries.disjoint

GeoSeries.crosses

GeoSeries.touches

GeoSeries.intersection

Notes

This method works in a row-wise manner. It does not check if an element of one GeoSeries crosses any element of the other one.

Examples

>>> from shapely.geometry import Polygon, LineString, Point
>>> s = geopandas.GeoSeries(
...     [
...         Polygon([(0, 0), (2, 2), (0, 2)]),
...         LineString([(0, 0), (2, 2)]),
...         LineString([(2, 0), (0, 2)]),
...         Point(0, 1),
...     ],
... )
>>> s2 = geopandas.GeoSeries(
...     [
...         LineString([(1, 0), (1, 3)]),
...         LineString([(2, 0), (0, 2)]),
...         Point(1, 1),
...         Point(0, 1),
...     ],
...     index=range(1, 5),
... )

>>> s
0    POLYGON ((0.00000 0.00000, 2.00000 2.00000, 0....
1        LINESTRING (0.00000 0.00000, 2.00000 2.00000)
2        LINESTRING (2.00000 0.00000, 0.00000 2.00000)
3                              POINT (0.00000 1.00000)
dtype: geometry

>>> s2
1    LINESTRING (1.00000 0.00000, 1.00000 3.00000)
2    LINESTRING (2.00000 0.00000, 0.00000 2.00000)
3                          POINT (1.00000 1.00000)
4                          POINT (0.00000 1.00000)
dtype: geometry

We can check if each geometry of GeoSeries crosses a single geometry:

>>> line = LineString([(-1, 1), (3, 1)])
>>> s.intersects(line)
0    True
1    True
2    True
3    True
dtype: bool

We can also check two GeoSeries against each other, row by row. The GeoSeries above have different indices. We can either align both GeoSeries based on index values and compare elements with the same index using align=True or ignore index and compare elements based on their matching order using align=False:

>>> s.intersects(s2, align=True)
0    False
1     True
2     True
3    False
4    False
dtype: bool

>>> s.intersects(s2, align=False)
0    True
1    True
2    True
3    True
dtype: bool

geopandas.GeoSeries.geom_equals_exact geopandas.GeoSeries.overlaps