geopandas.GeoSeries.is_valid_reason

GeoSeries.is_valid_reason()

返回一个 Series 字符串，其中包含每个几何体无效的原因。

另请参阅

GeoSeries.is_valid

检测无效几何图形

GeoSeries.make_valid

修复无效的几何图形

示例

一个包含一个无效多边形（交叉自身的蝴蝶结几何图形）和一个缺失几何图形的示例：

>>> from shapely.geometry import Polygon
>>> s = geopandas.GeoSeries(
...     [
...         Polygon([(0, 0), (1, 1), (0, 1)]),
...         Polygon([(0,0), (1, 1), (1, 0), (0, 1)]),  # bowtie geometry
...         Polygon([(0, 0), (2, 2), (2, 0)]),
...         None
...     ]
... )
>>> s
0         POLYGON ((0 0, 1 1, 0 1, 0 0))
1    POLYGON ((0 0, 1 1, 1 0, 0 1, 0 0))
2         POLYGON ((0 0, 2 2, 2 0, 0 0))
3                                   None
dtype: geometry

>>> s.is_valid_reason()
0    Valid Geometry
1    Self-intersection[0.5 0.5]
2    Valid Geometry
3    None
dtype: object