geopandas.GeoSeries.intersection

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geopandas.GeoSeries.intersection

2024-04-22 14:57| 来源: 网络整理| 查看: 265

Returns a GeoSeries of the intersection of points in each aligned geometry with other.

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

Parameters: otherGeoseries or geometric object

The Geoseries (elementwise) or geometric object to find the intersection with.

alignbool (default True)

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

Returns: GeoSeries

See also

GeoSeries.difference GeoSeries.symmetric_difference GeoSeries.union

Examples

>>> from shapely.geometry import Polygon, LineString, Point >>> s = geopandas.GeoSeries( ... [ ... Polygon([(0, 0), (2, 2), (0, 2)]), ... Polygon([(0, 0), (2, 2), (0, 2)]), ... LineString([(0, 0), (2, 2)]), ... LineString([(2, 0), (0, 2)]), ... Point(0, 1), ... ], ... ) >>> s2 = geopandas.GeoSeries( ... [ ... Polygon([(0, 0), (1, 1), (0, 1)]), ... LineString([(1, 0), (1, 3)]), ... LineString([(2, 0), (0, 2)]), ... Point(1, 1), ... Point(0, 1), ... ], ... index=range(1, 6), ... ) >>> s 0 POLYGON ((0.00000 0.00000, 2.00000 2.00000, 0.... 1 POLYGON ((0.00000 0.00000, 2.00000 2.00000, 0.... 2 LINESTRING (0.00000 0.00000, 2.00000 2.00000) 3 LINESTRING (2.00000 0.00000, 0.00000 2.00000) 4 POINT (0.00000 1.00000) dtype: geometry >>> s2 1 POLYGON ((0.00000 0.00000, 1.00000 1.00000, 0.... 2 LINESTRING (1.00000 0.00000, 1.00000 3.00000) 3 LINESTRING (2.00000 0.00000, 0.00000 2.00000) 4 POINT (1.00000 1.00000) 5 POINT (0.00000 1.00000) dtype: geometry

We can also do intersection of each geometry and a single shapely geometry:

>>> s.intersection(Polygon([(0, 0), (1, 1), (0, 1)])) 0 POLYGON ((0.00000 0.00000, 0.00000 1.00000, 1.... 1 POLYGON ((0.00000 0.00000, 0.00000 1.00000, 1.... 2 LINESTRING (0.00000 0.00000, 1.00000 1.00000) 3 POINT (1.00000 1.00000) 4 POINT (0.00000 1.00000) dtype: geometry

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.intersection(s2, align=True) 0 None 1 POLYGON ((0.00000 0.00000, 0.00000 1.00000, 1.... 2 POINT (1.00000 1.00000) 3 LINESTRING (2.00000 0.00000, 0.00000 2.00000) 4 POINT EMPTY 5 None dtype: geometry >>> s.intersection(s2, align=False) 0 POLYGON ((0.00000 0.00000, 0.00000 1.00000, 1.... 1 LINESTRING (1.00000 1.00000, 1.00000 2.00000) 2 POINT (1.00000 1.00000) 3 POINT (1.00000 1.00000) 4 POINT (0.00000 1.00000) dtype: geometry

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geopandas.GeoSeries.intersection

geopandas.GeoSeries.intersection

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