momepy.SharedWallsRatio#

class momepy.SharedWallsRatio(gdf, perimeters=None)[source]#

Calculate shared walls ratio of adjacent elements (typically buildings).

\[\textit{length of shared walls} \over perimeter\]

Note that data needs to be topologically correct. Overlapping polygons will lead to incorrect results.

Adapted from [Hamaina et al., 2012].

Parameters
gdfGeoDataFrame

A GeoDataFrame containing objects to analyse.

perimetersstr, list, np.array, pd.Series (default None, optional)

The name of the dataframe column, np.array, or pd.Series where perimeter values are stored.

See also

SharedWalls

Examples

>>> buildings_df['swr'] = momepy.SharedWallsRatio(buildings_df).series
>>> buildings_df['swr'][10]
0.3424804411228673
Attributes
seriesSeries

A Series containing resulting values.

gdfGeoDataFrame

The original GeoDataFrame.

perimetersGeoDataFrame

A Series containing used perimeters values.

__init__(gdf, perimeters=None)[source]#

Methods

__init__(gdf[, perimeters])