I have the following geodataframes, corresponding to a regular grid:
id grid_id geometry
0 48 0 (POLYGON ((2.052457758079306 41.42493869117656...
1 49 1 (POLYGON ((2.052470852112577 41.42403805731954...
2 215 2 (POLYGON ((2.053641274433816 41.42584917461342...
3 216 3 (POLYGON ((2.053654352531821 41.42494854059127...
4 217 4 (POLYGON ((2.053667430035439 41.42404790642426...
and a points geodataframe:
id_act geometry
0 4001 POINT (2.183026563657264 41.37459702541483)
1 4003 POINT (2.183012216695291 41.37471411724238)
2 4003 POINT (2.183128113845906 41.37472901746361)
3 3002 POINT (2.182820482338962 41.37482095671629)
4 4003 POINT (2.182945418252172 41.37482221760939)
I'm merging the two dataframes through a spatial join:
BCN_id_grid = gpd.sjoin(gdf, grid, how="inner", op='intersects')
but it returns the following AttributeError
:
AttributeError: 'NoneType' object has no attribute 'bounds'
the point is that when I call the function:
grid.bounds
it yields:
minx miny maxx maxy
0 2.052458 41.424038 2.053667 41.424949
1 2.052471 41.423137 2.053681 41.424048
2 2.053641 41.424949 2.054851 41.425859
3 2.053654 41.424048 2.054864 41.424958
4 2.053667 41.423147 2.054877 41.424058
5 2.053681 41.422247 2.054890 41.423157
calling both type(gdf.geomtry[0])
or type(grid.geomtry[0])
gives:
shapely.geometry.point.Point
shapely.geometry.multipolygon.MultiPolygon
respectively.
Does anyone know where is the mistake?
Best Answer
I've solved trying
points.bounds
that yields the same attribute error message:'NoneType' object has no attribute 'bounds'
So that means that the mistake was in the points geodataframe.
I ran the following script to slice the valid geometries:
points_fix = points.loc[points.is_valid]
It discards just about 1,000 points out of the original geodataframe, composed by more than 78,000 features, which works statistically for my purpose.